Hand mixer with safety latch

FIELD: personal use articles.

SUBSTANCE: invention refers to kitchen equipment. A hand mixer (1) comprises a body (2), a motor, a motor switch (4) with one switched-off position, one position of short-term connection and at least one position of long-term connection. At the same time the device comprises one first connecting coupling for connection of the tool and the second connecting coupling. It also includes a hole for connection, which is equipped with a lock (8) so that the second connecting coupling is available for connection of the tool only with the lock (8) open, and a locking element (14), which is mechanically connected to the lock (8) and interacts with the coupled locking element (16) of the motor switch (4) so that the lock (8) may not be opened, when the motor switch (4) is in position of long-term connection. According to the invention the locking element (14) is connected to the lock (8) by means of at least one hinged connection facility (11, 12).

EFFECT: invention makes it possible to simplify design of the mixer.

12 cl, 5 dwg

 

The technical field

The invention relates to a handheld mixer according restrictive part of paragraph 1 of the claims.

The level of technology

This hand mixer is known, for example, from German patent document DE 3942712 A1. The engine is enclosed in a case where the front part of the handle is a switch engine. The switch can result in off position enable short-term or in one of two long-term inclusion. On the lower side of the housing is a pair of couplings to connect the two leaves of the mixer. In addition, on the front or back side has a clutch for alternative connection speed blendery nozzles. For security reasons, the operation speed blendery nozzles should be performed only in the position enable short-term, but not long-term position enable switch engine. Therefore, in order to ensure that the connection speed blendery nozzles at a time when removed from the wall outlet plug switch transparent to the user is still in the position long-term inclusion, connection speed blendery nozzle is located inside the hole for the connection made with the possibility of closing its locking latch, so the m way that access to the clutch on the outside is not available. On the switch with the lower side of the fixed finger-lug-retainer, and locking the latch - finger-lock tab that blocking each other, prevent the opening of the blocking valve when the engine switch is in position long-term inclusion. Conversely, the protrusion of the latch and the locking ledge prevent the transfer switch in the position long-term inclusion, when the blocking valve is opened.

In the devices known from the prior art, the protrusion of the latch is located near the blocking valve and is designed so that it has the ability to block movement of the locking tab in the direction of opening the valve. This principle complicates the design of hand mixer and limits the ability of the designer. For example, in the embodiment, a known mixer described above, in which the coupling for high-speed blendery nozzle and the locking latch located on the rear side of the device, the handle hand mixer must be designed in such a way that it includes a rotatable rod which is integral with the switch located in the front part of the handle, and which is held inside handle mixer ago, where this post has made the p-latch, interacting with the locking protrusion of the locking valve. In addition, the protrusion of the latch extends deep into the body to block a sufficient stroke length of the valve.

Disclosure of inventions

At the heart of this invention lies in the challenge to create such a hand mixer in accordance with the restrictive part of paragraph 1 of the claims, which gives the designer more options for the free variation form.

To solve this problem, the invention features hand mixer with signs of paragraph 1 of the claims.

At least one hinge connecting the tool offers the possibility to convert an external force, intended to open the lock, and its movement to the open position to force the other, and moving the blocking element. This allows you to choose the position of the blocking element and the direction of its movement regardless of the position and direction of constipation. The outcome is a more simple, cheap and convenient external form design hand mixer. Another advantage obtained is that for fixing the locking element associated with constipation associated blocking do not necessarily have to be close to constipation. A further advantage is achieved in that sprage the element for fixing the switch engine does not have to go far into the interior of the housing, to lock the locking element associated with constipation.

The invention facilitates the design of a hand mixer, in which for security reasons, a clutch for connecting high-speed blendery nozzle is not available when the engine switch is in position long-term inclusion. In particular, the invention facilitates the design of a hand mixer, which prevents the possibility of connection speed blendery nozzles at a time when removed from the wall outlet plug switch transparent to the user is still in the position long-term inclusion. In addition, the invention facilitates the design of a hand mixer, which prevents the possibility of injury to the user if the latest misstep touches clutch for speed blendery nozzles.

Preferred variants and improvements of the invention are applicable individually or in combination with each other, are the subject of dependent claims.

In a preferred embodiment of the invention, at least one hinge connecting means converts the force applied from the outside in the direction of opening of the lock, the force acting on the blocking element. The direction of effort, work is it on the blocking element, preferably runs essentially perpendicular to the direction of opening. The blocking element preferably is a flat tongue, which, when opened, constipation moves inside the engine switch in the direction along the body.

The connecting means preferably has a hinge attached to constipation, for converting external efforts aimed at moving the latch in the direction of opening, and the move in an effort to move the blocking element and its very moving. In addition to the hinge, or instead of, the connecting means preferably includes elongated in the length of the element, preferably elastic, flexible in the direction perpendicular to its length, for example a flat bar made of plastic, wire or a wire spiral. Preferably in one place, particularly preferably in several places the connecting means passes through the guide and is quite hard to convert force and motion related to constipation, force and motion, related to the locking element. The end of the coupling element preferably forms a switch near the engine block element, which interacts with a mating locking element of the switch engine is.

When the engine switch is in position long-term activation of the blocking element preferably interacts with the paired locking element so that the force causes the locking element to the reaction force which the connecting means is transmitted back to the constipation. Mated locking element preferably is a protrusion, which in a particularly preferred case is formed as one unit with a switch engine. When the engine switch is in the position long-term inclusion of the associated locking element enters the path of movement of the locking element, preferably perpendicular to the direction of its movement to block its movement. When constipation affects the strength to open it, the blocking element faces paired element and causes the reaction forces transmitted through the connecting means back to the lock.

Preferably there is a possibility of transfer constipation under the influence of opposing forces in a locked position, in which it cannot be opened. Due to the possibility of the transfer latches in the locked position, the force with which the user tries to open the lock contrary to the long-term position included the I, have to accept not only one paired block element, but also, at least partially, the assets that secure locked position. This contributes to the fact that constipation can withstand loads and/or hand mixer will not be damaged in cases when the user exerts more force, pressing the lock or pulling it.

In a preferred embodiment of the invention the lock is a blocking valve. The access hole for the coupling preferably is opened by moving the blocking valve up. For this purpose, the lower end of the blocking valve preferably has a recess, which can affect the user.

One of the two elements of the blocking valve and housing - as the retainer preferably has a locking edge, and the other locking protrusion, so that in the locked position the locking protrusion is engaged with the locking edge to prevent movement of the blocking valve in the opening direction. The locking flange preferably runs perpendicular to the direction of the hole and in a particularly preferred case forms part of the cut on one side of the blocking valve. The locking protrusion is preferably placed on the body thus the om, that the locking edge of the locking latch slips past the locking protrusion when the connecting element has no effect on blocking the latch force of resistance. If same-side coupling element to lock the latch applied force, the latter when you try to open it moves in the direction of the locking protrusion, so that the locking protrusion is engaged with the locking edge and prevents further opening of the blocking valve.

In addition, in a preferred embodiment of the invention the locking element and is coupled blocking element interact in such a way that when you open the lock switch cannot be set to enable long-term. With this purpose, the blocking element is preferably so mechanically connected with constipation that with the opening of the lock when the switch is in the long-term activation of the blocking element moves on the trajectory of the coupled element, so that when you open the lock switch cannot be set to enable long-term.

The blocking element preferably is a flat tongue, which, when opened, constipation moves under the engine switch in the direction along the building is CA. For this purpose, at least one hinge connecting means converts the movement of the blocking valve in the direction of its opening movement of the blocking element when the engine switch is in the long-term inclusion. Movement of the blocking element preferably is directed essentially perpendicular to the direction of opening. This variant of the invention facilitates the design of a hand mixer, in which for security reasons, the tool attached to the second connecting device can be operated only in the position of the switch, which is designed to enable short-term.

A short list of drawings

Below the invention is explained in more detail with the description of further details on the example of the version on the basis of schematic drawings.

They show the following

figure 1 is a view of the internal arrangement of hand mixer according to the invention with the housing, the switch block and associated locking elements, the connecting element and a blocking valve;

figure 2 is a fragment of a switch of the engine block and associated locking elements when the engine switch is in the long-term include;

figure 3 is a fragment of a switch of the engine block and associated locking elements at the moment when the engine switch is in position long-term activation;

figure 4 is a fragment of a blocking valve to open when the engine switch is in the long-term activation; and

figure 5 is a fragment of a blocking valve to open when the engine switch is in position long-term inclusion.

The implementation of the invention

The image in figure 1 internal manual mixer 1 according to the invention shows the case 2 with a handle 3, in front of which is the rotary switch 4 has a cylindrical shape serving as a switch engine, the control is not shown motor. Rotary switch 4 is in the off position, one position momentary on and in a few long-term provisions inclusion for different rotational speeds of the engine. In the bottom 5 of the casing are two holes 6, through which you can connect from the outside to a not shown connecting couplings couple of tools, such as halos for whipping. Through the hole in the rear side 7 of the housing have access to another not shown coupling to connect another instrument, if the hole is not closed, as shown in figure 1, the locking valve 8. To open the user the eh must translate outside of the blocking valve 8 in the open position 9. To allow the user to take up a blocking valve, the blocking valve has a hole 10 for the impact.

The locking valve 8 is connected with a connecting element, which includes the pivot point 11 and elongated in the length of the flat bar 12 of plastic. Plastic strip 12 in the part facing the hinge 11, reinforced for rigidity of the rib 13. In part, converted to rotary switch 4, the plastic strap is elastically bendable perpendicular to its longitudinal direction. The end of the plastic strap 12 near the switch 4 forms a blocking element 14. By means of the coupling element force acting from the outside to open the latch 8, and the movement of the latch 8 in the direction 9 of the opening is converted into force and movement of the blocking element, directed essentially perpendicularly in the direction 15.

On the lower side of the rotary switch 4 has mated locking element 16. If the switch is not in position long-term inclusion, as shown in figure 2, the locking element 14 has the ability to seamlessly pass by paired locking element 16 in the direction 15 along the body when the locking valve 8 opens, moving in the direction 9 of the opening. If the switch is not in position long-term inclusion, to the to shown in figure 2, then, as soon as the user tries to open the blocking valve 8, the locking element 14 faces mated locking element 16. The force with which the locking element 14, and through him to the connecting element, presses the associated blocking element 16 causes a counteracting force that through the connecting element acts again on the blocking valve 8.

The locking valve 8 provided with a locking edge 17 and the inner side 7 of the housing - locking protrusion 18. If the locking element 14 has the ability to seamlessly pass by paired blocking element 16, the locking edge 17 of the blocking valve 8 slips past the locking protrusion 18 in the direction of the opening 9, as shown in figure 4. If, on the contrary, in the long-term position enable switch 4 blocking element 14 faces mated locking element 16, the reaction force exerted on the locking valve 8 impact in the direction 19, in which it is suitable connecting element. As a result of this blocking valve is pressed toward the rear of the chassis, so that the locking protrusion 18 is engaged with the locking edge 17. This prevents further movement of the blocking valve in the direction 9 of its opening.

As the beam is e only seen in figure 2, rotary switch 4 can not be rotated in the direction of the arrow 20 in position long-term include, at a time when the blocking valve 8 is shifted upwards, releasing the access hole for the clutch, since in this case the locking element 14 is moved in the direction of the arrow 15 and is under the rotary switch on the path of the paired locking element 16. Only when closing the blocking valve 8 of the blocking element will again be removed from his path, coupled element 16 will again have the opportunity to move freely, and the rotary switch can be put in the position long-term inclusion.

The features presented in the above description, in the claims and in the drawings may be essential to implementing the invention in a variety of versions of its execution either individually or in any combinations of these.

This invention is advantageous manner facilitates the design manual mixer 1, in which for security reasons, a second coupling for connecting high-speed blendery nozzle is not available if the switch 4 of the engine is set to enable long-term.

1. Hand mixer (1)comprising a housing (2), motor, switch (4) engine with a single off position, one position kratkofil the aqueous inclusions and at least one long-term position include, at least one first coupling for connecting the tool to set it in motion in position long-term inclusion, the second connection fitting for connecting the tool to set it in motion in position enable short-term, and the hole for connection, which is equipped with latch (8) so that the second coupling is available for connecting the tool only when you open the bolt (8), and a blocking element (14), which is mechanically connected with constipation (8) and communicates with the associated blocking element (16) switch (4) of the engine so that constipation (8) cannot be opened when the switch (4) of the motor is in position long-term inclusion, characterized in that the blocking element (14) is associated with constipation (8) via at least one articulated connection means (11, 12).

2. Hand mixer (1) according to claim 1, characterized in that at least one articulated connection means (11, 12) converts the force applied from the outside in the direction (9) opening constipation (8), the force acting on the blocking element (14).

3. Hand mixer (1) according to claim 2, characterized in that the direction of the force acting on the blocking element (14)essentially perpendicular to the direction (9) opening constipation (8).

4. Hand mixer (1) is about 2, characterized in that the connecting means (11, 12) has a swivel joint (11)mounted on the bolt (8).

5. Hand mixer (1) according to claim 2, characterized in that the connecting means (11, 12) includes an elongated length element (12), bend perpendicular to its longitudinal direction.

6. Hand mixer (1) according to claim 2, characterized in that, when the switch (4) of the motor is in position long-term activation of the blocking element (14) interacts with the paired locking element (16) switch (4) of the engine so that the applied force causes an opposing force acting on the blocking element (14), via the connecting means (11, 12) is transmitted to constipation (8).

7. Hand mixer (1) according to claim 6, characterized in that there is the possibility of moving constipation (8) under the influence of the reaction force in the locked position from which he could not be opened.

8. Hand mixer (1) according to claim 2, characterized in that the lock (8) is made in the form of a blocking valve.

9. Hand mixer (1) according to claim 8, characterized in that one of the elements of the blocking valve and housing - has a fixing flange (17), and the other locking projection (18), so that in the locked position the locking projection (18) is engaged with the locking edge (17)in order to prevent AC is the blocking valve in the direction (9) of the opening.

10. Hand mixer (1) according to claim 2, characterized in that the blocking element (14) and associated blocking element (16) interact in such a way that when you open the lock (8) switch (4) of the engine cannot be given to the position of long-term inclusion.

11. Hand mixer (1) according to claim 10, characterized in that the blocking element (14) is mechanically connected with constipation (8)that, when opened, constipation (8)when the switch (4) of the engine is not in the position long-term activation of the blocking element moves on the trajectory of the coupled element (16)so that when you open the lock (8) switch (4) of the engine cannot be set to enable long-term.

12. Hand mixer (1) according to claim 10 or 11, characterized in that, when the switch (4) of the engine is not in the position long-term including at least one articulated connection means (11, 12) converts the movement of the blocking valve in the direction (9) of its opening movement of the blocking element (14)is essentially perpendicular to the direction (9) of the opening.



 

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