Sole of shoes for cross-country skis including improved facilities of anchor fixation of connecting unit and shoes equipped with such sole

FIELD: personal use articles.

SUBSTANCE: invention proposes a flexible sole of shoes for cross-country skis, including at least two connecting units (16, 18) for its connection to the fixation device. Besides, these connecting units include elements of anchor fixation (48, 50) in the sole (14). Connecting units are fixed on the common part of anchor fixture (46), which is rigidly connected to the sole (14). The anchor fixture part includes two fixing zones (58, 60). At the same time each connecting unit is fixed on one of fixing zones, and the anchor fixation part includes a central zone (62), which passes between two fixing zones. The anchor fixation part of the sole has flexibility, which ensures folding of sole part when shoes are used, in which the anchor fixation part is integrated. When shoes are used, folding of the sole part, where the anchor fixation part is integrated, results in relative displacement of both connecting units. Cross-country skis shoes contain a sole made in compliance with the sole invention.

EFFECT: invention provides reliable fixation of connecting units without excessive stiffening of the sole in the part, where connecting units are fixed.

18 cl, 9 dwg

 

The invention relates to the field of footwear for racing skis.

In a number of cross-country skiing includes, in particular, Northern marathon and "back-country"which used a similar device, but the device mounts have a large reserve of strength that can withstand greater efforts, and shoes, as a rule, are more insulated and has a tight clasp. These types of skiing are different from skiing or ski jumping because they are on slightly dissected areas and allow the use of shoes with flexible soles.

In the patent EP 913103 described sole for a sports Shoe, in particular for ski racing, which includes two connecting node for connection with the fastening device for ski racing. In the examples of this patent, each of the connecting nodes independently fixed in the sole. To this end, each of them contains elements anchoring, prelite directly by the material of the sole. This anchoring system is perfect insofar as it is used for making the soles of the material has good mechanical properties, in particular high tensile strength under tension, in order to prevent pullout of the connecting nodes in use. Thus, this systemacity works perfectly when using materials, the strength of which at break tensile exceeds 30-35 MPa.

When using less efficient materials (but, for example, less expensive, easier to use and/or has the best adhesion characteristics) significantly increases the risk of pulling out the connecting nodes.

In the patent US 4907353 described the solution in order to avoid any risk of pulling out the connecting nodes. The connecting node is fixed in massive detail anchoring of durable material, which immediately poured material soles.

Another solution described in the patent FR 2645038, which shows that the connecting node is pinned to the details of anchoring in the form of a metal plate prelit material soles.

Described in these two documents solutions are of interest, but cannot be used in the case of a sole with two connecting nodes. Indeed, as shown in the aforementioned patent EP 913103, when designing shoes for a race ski specialist tries to provide the greatest possible flexibility of the sole in position corresponding to the area of the metatarsophalangeal joint of the foot of the user, as well as before this area until the front end of the sole. This flexibility is necessary to ensure a good spread of the boot. The above solution uh is efektywny, if the connecting node is fixed on the front end of the sole, and are not effective when applied directly to the bonding site, located somewhat behind, in particular in the metatarsophalangeal zone or more ahead of her.

Therefore, the objective of the invention is to develop a new concept of the sole that allows secure attachment of the connecting nodes, without excessive tightening of the sole in the part, which establishes the connection nodes.

The task is solved in that in the invention the flexible soles of shoes for a race ski, comprising at least two connecting node to its connection with the fixation device, and connecting these nodes include items anchoring at the base, characterized in that the connecting nodes is fixed at the normal details an anchoring rigidly connected to the sole, while the detail of anchoring includes two mounting area, each connecting node is fixed at one of these zones fastening and detail of anchoring includes a Central zone, passing between the two zones fastening and having the flexibility when using the Shoe bending part of the sole, in which integrated part anchoring.

It is advisable that the s when using the Shoe bending part of the sole, in which integrated part anchoring, resulting in a relative displacement of both of the connecting nodes.

It is also advisable to relative displacement of both of the connecting nodes corresponded to the relative angular shift of at least 5 connecting both nodes.

It is also advisable that the Central area of the workpiece anchoring was done in the form of a plate of small thickness.

It is also advisable to mounting area were located near the two longitudinal ends of the details of anchoring, and the Central area was located in the longitudinal direction between the two zones of attachment.

It is also advisable to detail anchoring was made of one and/or several plastics.

Preferably, at least one of the connecting nodes was fixed at the details of anchoring pribivaniem details anchoring of the plastic elements anchoring the connecting nodes.

It is preferable that at least the Central zone of items anchoring was made of a material modulus of flexibility which is less than 6000 MPa, preferably less than 4000 MPa.

Preferably, at least the mounting area detail anchoring were made of material strength to the th at break tensile higher than 50 MPa.

It is preferable that at least one of the two connecting nodes included active part protruding outward relative to the material of the sole.

It is preferable that the active portion of the connecting node contained transverse rod.

It is preferable that the connecting node consisted of two lateral branches with curved ends that prelit item anchoring.

It is preferable that both of the connecting node were located on the side of the sole located between the front end of the sole and the area of the sole corresponding to the metatarsophalangeal joint of the foot of the user.

It is preferable that the sole was made of a material whose strength at break tensile below 30 MPa.

It is preferable that the sole was made of material based on synthetic rubber.

It is preferable that the item anchoring was rigidly connected to the sole by pribivaniem soles around the details of anchorage.

It is preferable that each connecting node includes an active portion, the active portion connecting two nodes have been posted in the resting position, 50 mm

Another object of the claimed invention is the shoes for a race ski, containing the bottom with you upomyanutyi signs.

Other distinctive features and advantages of the invention follow from the description given with reference to the accompanying drawings, in which:

Figure 1 depicts a schematic bottom view in isometric of the Shoe sole for ski racing, with the top of the Shoe is indicated in phantom line;

Figure 2 is a bottom view of a sole according to figure 1;

Figure 3 is a longitudinal section in the plane of the Shoe provided with a sole according to the invention, and shoes connected with a device for mounting on a race ski and boot is plane-parallel to the ski;

4 is a view similar to figure 3, on which the Shoe is in the raised position;

5 and 6 depict views in isometric, respectively top and bottom parts anchorage, palitoy two connecting node;

7 and 8 are longitudinal sections in plan, illustrating schematically and with exaggerated deformation of items anchoring during use of the Shoe;

Fig.9 depicts a section along the line IX-IX according to Fig 3.

The invention is described in the framework of the fixation device of racing skis 12, ensures retention of the front end of the Shoe 10 racing skis, the rear end of which is free to rise.

The Shoe shown in figures 1 and 2, includes a sole 14, which is fixed with two connecting node 16, 18, loc is defined in the base 14 so that I perform it in a downward direction.

Each connecting node 16, 18 includes a rotating rod 20, 21, located across the longitudinal groove 22 of variable cross section, provided on the underside of the sole 14. Front rod 16 is, for example, near the front end of the sole, and the rear rod 18 is moved in the rear direction so that it can be positioned at the zone level Shoe or front area of the Shoe corresponding to the area of the metatarsophalangeal bending of the foot of the user. It is preferable that the rear rod 21 maximum is shifted to the rear boundary of the first third of the length of the Shoe that corresponds to the posterior marginal zone metatarsophalangeal joint. This arrangement of the connecting nodes is especially appreciated in ski racing, since the use of shoes with flexible soles it allows you to save the bending Shoe respectively flexion of the foot.

In the example, the front and rear rods have a round cross-section. However, it is also possible connecting nodes with a different geometry or other configuration, for example a rod of noncircular cross section, hooks, tabs, etc.

In the above example and in the example shown, particularly in figure 3 and 4, the rod 20 of the front element 16 is arranged to interact in a known manner the mechanisms of the MD block 24, including a movable clamping cheek 26 in the form of a hook and lateral edge 28, which represents a stationary clamping cheek, for rotational locking mechanism of the Shoe on the ski 11. Being locked in the locking system, the terminal front connector 16 can rotate freely inside the clamping cheeks 26, thus providing a hinged fixing the front end of the Shoe 10. The principle of operation of the locking mechanism 24 is known in the prior art, for example, from the patent FR 2634132, registered in the name of the applicant, and may be performed either manually lock or automatic lock. An example of such a locking mechanism is embodied in systems supplied to the market by the applicant under the trademark "SNS", and does not require detailed description, taking into account the fact that the invention can be implemented with other types of locking mechanisms.

The rod 21 of the rear connecting node 18 is intended to ensure that the footwear system of elastic return, interacting with the guide edge 30 of the device. The knife edge 30 extending backward in the longitudinal direction, preferably has a profile cross section which matches the cross section of the groove 22. It is also possible any cross-sectional shape of the edges 30 and groove 22. The system of elastic return of the identical, in the example, described in the patent EP 768103, registered in the name of the applicant. So, it includes a shackle 32, the front end of which is implemented as a hook 34 (which is included in engagement with the rear rod 21 of the Shoe 10, and the rear end is connected with the base, can move in the longitudinal direction and rotation around the transverse axis. The elements of the elastic return 36 operate to return the earrings 32 in the rest position, shown in figure 3. Thus, when the boot heel is raised, as shown in figure 4, rotation of the Shoe 10 around the front of the rod 20 earring which engages with the rear rod 21 can move up and forward relative to the rear of the rod 21, having him return force, which aims to return the sole 14 of the Shoe 10 on the upper side 11 of the ski.

The invention can also be implemented using other fastening devices, such as fastening devices of the type described in the patent EP 1440713, or also by means of other devices, such as devices that are at least partially integrated into the ski.

As can be seen in figures 1 and 2, the groove 22 on the sole 14 in the transverse direction is limited by the blocks of studs 38, arranged one on each side of the groove 22 and forming the tabs down the bottom side 42 of the sole, which also limits the deepening of the groove 22. Blocks of studs 38 to them which are in turn arranged one opposite the other inner side 40, forming the sides of the groove 22. Blocks of studs 38, preferably made as a single unit with the sole, cross cuts, particularly cuts essentially transverse orientation 44 that provide flexion of the sole, which allows to simulate the spread of the foot. One of the slots 44 are provided between the two connecting nodes 16, 18, which provides the sole flexibility, including in the area.

According to the invention for fastening the connecting nodes 16, 18 is normal item anchoring 46 with two connecting nodes. An example of the implementation details of the anchoring 46 is clearly visible on figure 5 and 6.

In the present example, both of the connecting node 16, 18 have the same geometry. So, in both cases, the transverse rod 20, 21 extended from both ends through the side branch 48, oriented essentially in a perpendicular direction (or under the same angle relative to the transverse rod, for example, essentially in the form of V), and each branch 48 includes a turned end 50, also perpendicular and oriented in the direction of the other branch, so that the curved ends 50 of the branches 48 of the same connector is oriented essentially along the same axis and are located opposite each other. In this embodiment, each connecting node takes place essentially in one is locoste and consists of a rotating cylindrical steel rod, which due to flexure attached to the appropriate form.

In the present example, the item anchoring has the shape of an essentially rectangular plate, each of the four corners which prelit on the bent end of one of the side branches of both of the connecting nodes. Indeed, the detail of the anchoring 46 is made in this case, the plastic molding in the form of a single monolithic part. So, the item anchoring has a front edge 52, a rear edge 54 and two side edges 56. Both corners of the leading edge prelite on the front connecting node, form the front mounting area 58 for the front of the connecting node. Similarly, both corners of the rear edge prelite on the rear connecting node, form the rear mounting area 60 for the rear connection node 18.

Mounting area 58, 60 cover completely turned end 50 and descend slightly lower along the upper part of the corresponding side branch 48. These mounting area 56, 60 parts anchoring 46, in accordance with their palitoy design, have a form that depends on the shape of the bent ends 50 of the connecting nodes. The front edge 52 and trailing edge 54 of the details of the anchoring 46 a few are, respectively, forward and backward, relative to the bent ends respectively of the front and rear connection points 16, 18. Blocking the store protrusion of the leading edge more than the overlying ledge rear edge. These tabs allow you to increase the mounting surface anchoring in the material of the sole. However, it would also be possible to overlap the tabs on the front and back were the same or that the tabs were missing. In General, the detail of the anchoring could have a completely different form than that which is represented on the drawings.

Each connecting node 16, 18 are predominantly placed in a plane oriented at an angle of 45 relative to the General orientation of the workpiece anchoring in the form of a plate. Front connecting node 16 is oriented in the upward direction from front to back, while the rear connecting node 18 is oriented downward from front to back. Thus, it appears that the longitudinal spacing of 50 mm between respectively the front and rear rods 20, 21 (forming the active part of the connecting nodes 16, 18) corresponds to the spacing between the zones of attachment of the intermediate parts of about 25 mm. Given the overlapping tabs of the front and rear edges relative to the zones of attachment, the overall length of the part anchoring 46, at spacing of 50 mm between the terminals 20, 21 in the rest position, is approximately 40 mm, Thus, the inclined arrangement of the connecting nodes, allowing to reduce the lengths of the parts anchorage, allows you to reduce the negative impact of items anchoring at the sole flexibility.

Between the two zones fasteners 58, 60 item anchoring 46 occupies the Central zone 62, which in the example is a simple plate. The Central plate 62 seats perforated, in this case has four through holes 64. As follows from figure 3, 4 and 9, detail of the anchoring 46 must be embedded in the sole.

The sole 14 is, for example, a candy bar along the length of the Shoe (but the invention could be implemented in the form of a sole, consisting of several parts, for example, flexible front and hard rear, as described in patent EP 787440) and is made, for example, from a material based on a thermoplastic synthetic rubber. The material in question has a tensile strength at elongation of about 12 MPa. The manufacture of the sole 14 to give her shape is carried out by injection molding. Therefore, it is preferable to provide that detail anchoring was rigidly connected to the sole by pribivaniem soles around the details of anchoring, so the item anchoring is embedded in the sole. However, may provide for other means of rigid connection details for anchoring, for example by gluing, welding sclavonian etc.

Mostly both the connector 16, 18 are fixed on the details of the anchoring 46 before it is made outsole. So in the molding process of the sole in a form for molding soles put and fix two component, and one formed by the detail of the anchoring complete with two connecting nodes. Thus, this simplifies the operation of the molding soles.

As can be seen, in particular, figure 9, the whole set is completely buried in the material of the sole, with the exception of the transverse rods 20, 21 knots. Lateral branches 48 of the connecting nodes are inside blocks of studs 38. This means that the item anchoring is not visible from the outside. Thus, visible only transverse rods, which are located across the groove 22 and connect the two opposite lateral sides 40 units of studs 38. In addition, through holes 64 in the Central zone of items anchoring filled by the material of the sole, which contributes to the flow of material during the casting process and increases the mechanical strength of the obtained pribivaniem connection between the item anchoring and sole.

You can also provide that detail for anchoring at least partly visible from the outside of the sole, in particular if pribivaniem it is not integrirovanie sole.

According to the invention, the detail of anchoring is designed so that it does not block the bending of the sole 14, when in use, the skier at full Flex the foot. This situation occurs in particular at the moment of repulsion.

With this purpose, provided that the Central zone 62 of the details of the anchoring 46 has such a geometry that, in accordance with the stiffness of its material, it can bend under the influence of opposing forces. To obtain this result, the most possible different combinations of geometry with materials. In General, for the manufacture of the Central plate 62 should be suitable materials useful module of flexibility below 6000 MPa and preferably below 4000 MPa, especially if the plate has a small thickness.

At the same time, the item anchoring 46 must also meet the other functions, the opposite of the previous one, i.e. it should provide a weak bonding sites 16, 18. In other words, the mounting area 58, 60 parts anchoring should not crack under the impact of the effort exerted on the connecting nodes when using the shoes. This is especially critical due to the fact that the material of the sole is a material with little mechanical strength such as tensile strength, peristiani less than 30 MPa and even less than 20 MPa. Various tests showed that the material whose strength at break tensile exceeds 50 MPa, allows to obtain the required strength for the zones of attachment.

Thus, the mounting area 58, 60 and the Central zone 62 of the details of the anchoring 46 must comply with the opposite characteristics of mechanical strength.

Under option of carrying out the invention it is possible to perform detail anchoring of several parts, with a particularly durable material for fastening zones and highly flexible material for the Central zone. However, this solution is costly.

In the above example, item anchoring presents monoblock design, executed as a single unit from a single material. Material, offering a reasonable compromise was defined, based on the fact that the item anchoring is made of polyamide 6 filled with fiberglass about 15%. The finished item made from this material essentially with the same wall thickness in the Central zone 62 and the fastening zones 58, 60, and the thickness is from 1 to 2.5 mm, showed good results both in terms of flexibility and strength of the connecting nodes on the loose.

It was noted that in terms consistent with the terms of use, embedded in the soles are made of thermo is lasting synthetic rubber, item anchoring 46 (and, in particular, its Central zone 62) could be deformed in accordance with the fact, as shown generally at 7 and 8, in which the deformation for better illustration of the task was deliberately increased.

Thus, between the configuration in the rest position, shown in Fig.7, and the configuration under the influence of effort shown on Fig, there is a relative shift between two connecting nodes 16, 18. For example, the angle between the mean planes of both of the connecting nodes (the angle measured in the longitudinal and vertical planes) can vary from the values a (about 90 in the example) to the value A' (in this case, the order of 95-100), which corresponds to a relative offset, where the component of the shift in the rotation ranges of 5-10.

1. The flexible sole of the Shoe for racing skis, comprising at least two connecting node (16, 18) for connection with the fastening device, and connecting these nodes include anchoring elements (48, 50) in the base (14), characterized in that the connecting nodes are fixed on the common parts for the anchor bracket (46), rigidly connected to the sole (14), and detail of anchoring includes two mounting area (58, 60), each connecting node is fixed at one the of these fastening zones, and detail of anchoring includes a Central zone (62)passing between the two zones of attachment and having the flexibility when using the Shoe bending part of the sole, in which integrated part anchoring.

2. Sole according to claim 1, characterized in that when using the Shoe bending part of the sole (14), which integrated the item anchoring (46), entails the relative displacement of both coupling units (16, 18).

3. Sole according to claim 2, characterized in that the relative displacement of both coupling units (16, 18) corresponds to a relative angular shift of at least 5 connecting both nodes.

4. Sole according to one of claims 1 to 3, characterized in that the Central zone (62) parts for the anchor bracket (46) is made in the form of a plate of small thickness.

5. Sole according to claim 1, characterized in that the mounting area (58, 60) are located near the two longitudinal ends of the parts for the anchor bracket (46)and Central zone (62) is located in the longitudinal direction between the two zones of attachment.

6. Sole according to claim 1, characterized in that the detail of anchoring (46) is made of one and/or several plastics.

7. Sole according to claim 6, characterized in that at least one of the coupling units (16, 18) fixed on the details of anchoring (46) pribivaniem det is whether anchoring of the plastic elements (48, 50) anchoring of the connecting nodes.

8. Sole according to claim 1, characterized in that at least the Central zone (62) parts for the anchor bracket (46) is made of a material, the modulus of flexibility which is less than 6000 MPa, preferably less than 4000 MPa.

9. Sole according to claim 1, characterized in that the at least one mounting area (58, 60) parts for the anchor bracket (46) made of a material whose strength at break tensile higher than 50 MPa.

10. Sole according to claim 1, characterized in that at least one of the two coupling units (16, 18) includes the active part (20, 21), protruding outward relative to the material of the sole (14).

11. The sole of claim 10, characterized in that the active part (20, 21) of the connecting node (16, 18) has a transverse rod.

12. Sole according to claim 7, characterized in that the connecting node (16, 18) includes two lateral branches (48)having curved ends (50), which prelit item anchoring (46).

13. Sole according to claim 1, characterized in that both the connecting node (16, 18) are located on the side of the sole located between the front end of the sole and the area of the sole corresponding to the metatarsophalangeal joint of the foot of the user.

14. Sole according to claim 1, characterized in that it is made from a material whose strength at break tensile below 30 MPa.

15. Sole according to claim 1, atricauda is the, what it is made from a material based on synthetic rubber.

16. Sole according to claim 1, characterized in that the detail of the anchoring rigidly connected to the sole by pribivaniem soles around the details of anchorage.

17. Sole according to claim 1, characterized in that each connecting node (16, 18) includes the active part (20, 21), and an active part (20, 21) connecting two nodes spaced apart in the rest position, 50 mm

18. Shoes for a race ski, characterized in that it contains the sole (14) according to one of claims 1 to 17.



 

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21 cl, 25 dwg

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EFFECT: correction of the correct manner of foot placing and rolling over when walking.

8 cl, 19 dwg

FIELD: individual supplies.

SUBSTANCE: sport footwear sole, particularly footwear sole for racing skis or telemark style skiing consists of a back or heel part where heel is placed, and a front part or toe part. The latter is cup-shaped and made from solely hard material, mainly plastic. Underneath, the sole is provided with a cover piece located on the front and back part. The cover piece is made from relatively soft, rubber-like material. There are several cross grooves made in the sole bottom at least within zone (M) located in metatarsophalangeal joint of foot flexure. The preset overall sole thickness and height (h) accordingly, is defined by the said cover piece thickness plus the thickness of those sole parts made from hard materials. The front part of sole at least from the upper side, is made slightly cup-shaped and smooth, and at footwear bottom. Within zone (M) of metatarsophalangeal joint of foot flexure, the sole maximum thickness is 50%, namely 30-35% from the overall thickness (h) of sole provided that preset overall sole thickness (h), which is comprised of hard and soft materials thicknesses, is invariable. In addition to cross grooves available in cover piece at least one guiding longitudinal groove is made. The bottom of part of cross and/or longitudinal grooves is made in the front part of the sole with relatively hard material.

EFFECT: technical result provides for footwear sole using according to invention and lies in applying simple technology of manufacture; so, sole has maximum bending elasticity and flexibility in metatarsophalangeal joint of foot flexure without loss of side stability chosen as structural basis.

11 cl, 3 dwg

FIELD: shoe industry.

SUBSTANCE: invention refers to shoe industry, particularly can be used for forced internal footwear ventilation due to atmospheric air injection through footwear toes. The atmospheric air is injected through horizontal elastic channeling arranged in the sole. The sole consists of at least three layers firmly interconnected. The centre contains soft and elastic material layer with horizontal elastic tubes. Elastic tubes or elastic channels are not interconnected. In walking the heel back interacts to the surface of the former, then sole and surface contact is shifted to the sole toes. Simultaneously the load is sequentially shifted from the heel to the sole toes. Under the gravity channels are deformed and blocked thus pushing the air through the channels from the heel to the footwear toes. Elastic tubes or elastic channels is small-diameter round or elliptic sectioned herewith the internal diameter does not exceed 1.5-2.0 mm. Pressure increase inside of the footwear causes air and water vapour exhaust through the natural cracks between a foot, internal surface of footwear top and toe material. It is repeated with each step, i.e. in walking horizontal channelling represents the pump which injects the atmospheric air to the footwear toe.

EFFECT: improved footwear comfort and hygienic properties.

2 dwg

FIELD: household goods and personal effects.

SUBSTANCE: atmospheric air is pumped through the system of horizontal elastic channels available in the shoe sole. They are placed in the cellular layer and do not interact with each other. While walking, the rear part of the leg heel interacts with the support surface of the front part. Then the sole contact with the surface moves to the toe part. At the same time, the load moves subsequently from heels to toe. The elastic channels of minor diameter of the cross section are deformed and blocked under the gravity effect. It helps to push air from hell to toe part of the show. The channel section diameter does not exceed 1.5-2.0 mm. Pressure is increased in the inner shoe volume resulting in air and water steam release through the natural slots between feet, inner surface of shoe top and toe material. The same action is repeated at each step, i.e. the system of elastic, horizontal channels is represented with a pump, which pumps atmospheric air into the toe part of the shoe.

EFFECT: more comfortable shoes, improved hygienic properties due to atmospheric air pumping through the toe shoe part.

2 dwg

FIELD: shoe industry, in particular, manufacture of shoes equipped with devices facilitating acting walking and rolling.

SUBSTANCE: apparatus has upper portion provided with shoe top part and sole provided with at least mid portion, lower portion and lower sole layer. Lower layer of mid portion of sole and lower layer of sole have random convex or arched shape or shape of segment of circle.

EFFECT: increased efficiency in protecting of user's joints, enhanced growth of muscles and strengthening of posture.

21 cl, 14 dwg

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