TWI677407B - Wrench having stopping device - Google Patents

Abstract

The wrench with a stop device of the present invention includes a body and a stopper. The body includes a driving head, the driving head is provided with a driving hole, the body is provided with a stopper, the stopper is connected to the body, and the stopper The connecting portion and the stopping portion are provided with an elastic portion between the connecting portion and the stopping portion. The connecting portion is fixedly connected to the driving head. The stopper is provided on the side of the elastic portion opposite to the virtual rotating shaft. It can move relative to the body between the first position and the second position, and by using the elasticity of the elastic portion, the stopper is maintained in the first position when it is not subjected to external force. When the stopper is in the first position, the stopper can be locked. When the stopper is in the second position, the stopper is disengaged from the work, the elastic part is abutted against the stopper, and the wrench can effectively limit the position of the work by the above structure.

Description

Wrench with stop device

The invention mainly discloses a wrench, especially a wrench with a stop device.

Please refer to the Chinese Patent No. I637820 "Wrench with Stop Device" patent, which discloses a wrench with a stop device including a body and a stopper. The body includes a driving head, and the driving head is provided with A driving hole, the stopper is connected to the body, the stopper has a connecting portion and a stopping portion, and an elastic portion is provided between the connecting portion and the stopping portion. The connecting portion is fixedly connected to the driving head. The elastic portion includes There is a first bending section and a second bending section. The bending directions of the first bending section and the second bending section are different. The stopper can move relative to the body between the first position and the second position. The elasticity keeps the stopper in the first position when it is not subjected to external force. When the stopper is in the first position, the stopper can catch or stop the working object. When the stopper is in the second position, the stopper is disengaged. Work.

However, the stopper of the aforementioned wrench is fixed on the back of the driving head through the second locking member. When the stopper moves to the second position, the position of the second locking member will bear the torque, and the second locking member is only small. Repeatedly withstanding the torque of the pin, the second locking member cannot fix the stopper, and the stopper cannot perform its original function after rotating relative to the driving head.

In view of the lack of the above-mentioned conventional structure, the present inventor is committed to designing a wrench with a stop device, which can overcome all the disadvantages of the above-mentioned conventional structure.

The main purpose of the wrench with a stop device of the present invention is to provide a wrench including a body and a stopper. The body includes a handle and a driving head, the driving head is connected to one end of the handle, and the driving A head is provided with a front surface along one side of the axis of a virtual rotating shaft and a back surface opposite to the front side. The driving head is provided with a driving hole along the axial direction of the virtual rotating shaft, and the driving hole penetrates the driving The head communicates with the front surface and the back surface. The main body can sleeve the work with the driving hole and drive the work to rotate around the virtual rotating shaft. The body is provided with a stopper, and the stopper is connected to the body. The stopper has a connecting portion and a stopping portion, and an elastic portion is provided between the connecting portion and the stopping portion. The connecting portion is fixedly connected to the driving head. The stopper is provided on the opposite side of the elastic portion. On one side of the virtual rotating shaft, the stopper can be moved relative to the body between the first position and the second position, and the elasticity of the elastic part allows the stopper to be maintained at the time when it is not subjected to external force. In a position, when the stopper is in the first position, the stopper can lock or stop a work that enters the drive hole, and when the stopper is in the second position, the stopper is along the diameter of the virtual shaft. Moving away from the driving hole and away from the work object, the elastic part abuts against the stopper, the wrench can effectively restrict the position of the work object by the above structure, avoid the work object from sliding relative to the wrench, and pass the stop The automatic rebound design of the stop makes the wrench very convenient to operate.

When the stop portion is in the first position or the second position, the elastic portion abuts against the stop block.

The stopper is protruded from the body with an integrally formed structure, and the stopper is cylindrical.

The elastic portion extends on a virtual reference plane, which is perpendicular to the virtual rotation axis. The elastic portion includes a first curved section and a second curved section. The center of curvature of the first curved section and the second curve The curvature centers of the segments are respectively located on different sides of the elastic portion.

When the stopper is in the second position, the stopper abuts the position of the second curved section adjacent to the first curved section.

The stopper forms an integrally formed structure, and a cross-sectional area of the elastic portion in the transverse direction is smaller than a cross-sectional area of the connecting portion in the transverse direction and a cross-sectional area of the stopper in the transverse direction.

The stopper is formed by bending a metal sheet body as a whole.

The average curvature radius of the first curved section is set to a first radius, the average curvature radius of the second curved section is set to a second radius, and the second radius is larger than the first radius.

The second radius is 1.5 times to 2 times the first radius.

The curvature center of the first curved section is located on a side of the elastic portion adjacent to the driving hole, the curvature center of the second curved section is located on a side of the elastic portion different from the driving hole, and the second curved section is located on the first A curved section is adjacent to one side of the stop.

The stopper is disposed on the back surface, the stopper is disposed on the back surface of the driving head, the connecting portion is fixedly connected to the back surface of the driving head, the body is provided with a limiting groove on the back surface, and the stopping portion is adjacent to the A limiting flange is convexly arranged on one side of the back side, and the limiting flange can be movably disposed in the limiting groove relative to the body.

The main body is provided with a back cover on the back surface, and the back cover is fixedly connected to the back surface through a first locking member and a second locking member. The first locking member and the second locking member are respectively parallel to the virtual rotation axis. Extending in a direction, the first locking member is disposed on the back of the driving head, the first locking member passes through the back cover and is fixedly connected to the driving head in an inserting manner, and the second locking member is disposed on the driving head On the back side, the second locking member sequentially passes through the back cover and the stopper and is fixedly connected to the driving head in an inserting manner, so that the stopper is located between the driving head and the back cover, and the stopper is located Between the back surface and the back cover.

The stopper is provided with a toggle portion extending from the stopper portion. The toggle portion extends in a direction different from the body in a direction parallel to the axial direction of the virtual rotation axis, and the toggle portion is located at the stopper portion. Different from the side of the driving hole.

The body also has a ratchet ring, the ratchet ring is provided between the front and the back of the driving head, and the ratchet ring ring is provided around the driving hole. The ratchet ring can rotate relative to the driving head with the virtual rotating shaft as an axis. .

Other objects, advantages, and novelty of the present invention will be more apparent from the following detailed description and related drawings.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is described in detail below with reference to the drawings. This is for illustration purposes only, and is not limited by such a structure in patent applications.

Please refer to FIG. 1 to FIG. 4, which are a perspective appearance view, a perspective exploded view, and a cross-sectional structure view of a wrench having a stopper device according to the present invention. The wrench 10 of the present invention includes a body 20 and a stopper 30; wherein:

The body 20 includes a handle 21 and a driving head 22 connected to one end of the handle 21. The driving head 22 is provided with a front surface 221 on one side along an axial direction of a virtual rotation axis L and is opposite to the one. A back surface 222 is provided on one side of the front surface 221, and the driving head 22 is provided with a driving hole 23 along the axial direction of the virtual rotation axis L. The driving hole 23 penetrates the driving head 22 to communicate the front surface 221 and the back surface 222. The main body 20 can be sleeved on the working object 90 with the driving hole 23 and drive the working object 90 to rotate around the virtual rotation axis L as an axis.

The main body 20 is provided with a limiting groove 24 on the back surface 222.

The main body 20 is provided with a back cover 25 on the back surface 222. The back cover 25 is fixedly connected to the back surface 222 through a first lock member 26 and a second lock member 27. The first lock member 26 and the second lock The pieces 27 respectively extend in a direction parallel to the axial direction of the virtual rotation axis L. The first locking piece 26 is disposed on the back surface 222 of the driving head 22. The first locking piece 26 passes through the back cover 25 and is fixedly connected to the insertion cover. The drive head 22.

The body 20 also has a ratchet ring 28 which is disposed between the front surface 221 and the back surface 222 of the driving head 22 and the ratchet ring 28 ring is disposed around the driving hole 23. The rotating shaft L is a shaft center that rotates relative to the driving head 22.

The main body 20 is provided with a stopper 29. The stopper 29 is provided on the back surface 222. The stopper 29 is protruded from the main body 20 in an integrated structure. The stopper 29 is cylindrical.

The stopper 30 is connected to the main body 20. The stopper 30 is disposed on the back surface 222 of the driving head 22 in this embodiment. The stopper 30 has a connection portion 31 and a stopper portion 32. An elastic portion 33 is provided between the connecting portion 31 and the stopping portion 32. The connecting portion 31 is fixedly connected to the back surface 222 of the driving head 22. The second locking member 27 is provided on the back surface 222 of the driving head 22. The second locking member 27 passes through the back cover 25 and the stopper 30 in sequence and is fixedly connected to the driving head 22 in an inserting manner, so that the stopper 30 is located between the driving head 22 and the back cover 25. The stopper 30 as a whole is formed by bending a sheet metal body to form an integrated structure. The cross-sectional area of the elastic portion 33 in the transverse direction is smaller than the cross-sectional area of the connecting portion 31 in the transverse direction and the cross-sectional area of the stopper 32 in the transverse direction. The stopper 29 is disposed on a side of the elastic portion 33 opposite to the virtual rotation axis L, and the stopper 29 is located between the back surface 222 and the back cover 25.

The stopper 30 is provided with a toggle portion 34 extending from the stop portion 32. The toggle portion 34 extends in a direction different from the body 20 in a direction parallel to the axial direction of the virtual rotation axis L. The portion 34 is located on a side of the stopping portion 32 different from the driving hole 23. A limiting flange 321 is protruded from a side of the stopping portion 32 adjacent to the back surface 222. The limiting flange 321 is movably disposed in the limiting groove 24 relative to the main body 20.

The elastic portion 33 extends on a virtual reference plane P. The virtual reference plane P is perpendicular to the virtual rotation axis L. The elastic portion 33 includes a first curved section 331 and a second curved section 332. The first curved section 331 The center of curvature of the second bending section 332 is located on two different sides of the elastic portion 33, and the center of curvature of the first bending section 331 is located on the side of the elastic portion 33 adjacent to the driving hole 23. The curvature center of the two curved sections 332 is located on a side of the elastic portion 33 different from the driving hole 23. The second curved section 332 is located on a side of the first curved section 331 adjacent to the stopper 32. The average curvature radius of the first curved section 331 is set to a first radius R1, and the average curvature of the second curved section 332 is set. The radius is set to a second radius R2, which is larger than the first radius R1. In this embodiment, the second radius R2 is 1.5 times to 2 times the first radius R1.

Please continue to refer to FIG. 5 and FIG. 6, which are cross-sectional structural diagrams of a wrench stopper with a stopper device in the second position according to the present invention. The stopper portion 32 can move relative to the body 20 between the first position and the second position, and the elasticity of the elastic portion 33 keeps the stopper portion 32 in the first position when it is not subjected to external force. When the portion 32 is in the first position (as shown in FIG. 4), the stopper portion 32 can lock or stop the work 90 entering the driving hole 23, and when the stopper portion 32 is in the second position (as shown in FIG. 5) (Shown), the stopping portion 32 moves along the virtual rotation axis L in a direction away from the driving hole 23 and leaves the working object 90.

When the stopper portion 32 is in the second position, the elastic portion 33 abuts against the stopper 29, and the stopper 29 abuts the position of the second curved section 332 adjacent to the first curved section 331. In this embodiment, when the stopper portion 32 is in the first position or the second position, the elastic portion 33 abuts against the stopper 29.

In this embodiment, the working object 90 is a sleeve. When the working object 90 is to be turned by the wrench 10, the working object 90 can be put into the driving hole 23 from the front surface 221, and the working object 90 can be pushed firmly. The stopper portion 32 of the stopper 30 slides along the chamfer of the work piece 90 and moves to the second position until the stopper portion 32 is aligned with the locking slot 92 of the work piece 90, and the stopper portion 32 can return. Bounce to the first position and fit into the slot 92 of the working object 90 so that the working object 90 cannot escape from the wrench 10. The wrench 10 can effectively limit the position of the working object 90 by the above structure, avoiding the sliding of the working object 90 relative to the wrench 10, which is beneficial to the turning operation, and the design of the springback of the stopper 32 makes the wrench 10 very Easy to operate. When the work piece 90 is to be withdrawn, the user can dial the toggle portion 34 to move the stop portion 32 to the second position and detach from the work piece 90. The elastic portion 33 can exert excellent elasticity through the design of the shape described above. In addition to being able to effectively push the stop portion 32 into the slot 92 of the working object 90, the resistance of the user to dial is not too great. And not easy to break. At the same time, through the design in which the limiting flange 321 is disposed in the limiting groove 24, the elastic portion 33 is prevented from being deformed excessively by the user's excessive force.

Through the design that the stopper 29 abuts against the elastic portion 33, the stopper 30 and the driving head 22 can be positioned at two points with the second locker 27 and the stopper 29, so that the position of the stopper 30 Limited by the stopper 29, there will be no situation in which the fixing force of the second locking member 27 is insufficient to cause the stopper 30 to rotate.

The wrench 10 can also turn a screw or nut. When the screw or nut enters the driving hole 23, the screw or nut is chamfered by the stopper 32 because the chamfer of the screw or nut is small or no chamfer. The back surface 222 cannot be withdrawn, and can be used for users to easily and quickly turn a screw or nut repeatedly (not shown).

From the above, it can be concluded that the present invention has the following advantages:

1. A wrench with a stop device according to the present invention, wherein the wrench includes a body and a stopper, the body includes a handle and a driving head, the driving head is connected to one end of the handle, and the driving head is along a A front side of the virtual shaft is provided with a front side and a back side is opposite to the front side. The driving head is provided with a driving hole along the axial direction of the virtual shaft, and the driving hole communicates with the driving head. The front side and the back side, the main body can be sleeved with the driving object through the driving hole and driven to rotate around the virtual rotating shaft. The main body is provided with a stopper, the stopper is connected to the body, and the stopper The piece has a connection portion and a stop portion, and an elastic portion is provided between the connection portion and the stop portion. The connection portion is fixedly connected to the driving head. The stopper is disposed on the elastic portion and is opposite to the virtual portion. On one side of the rotating shaft, the stopper can move relative to the body between a first position and a second position, and the elasticity of the elastic portion keeps the stopper in the first position when it is not subjected to external force. block When in the first position, the stopper can catch or stop the work entering the drive hole. When the stopper is in the second position, the stopper moves radially away from the drive hole along the virtual axis of rotation. Move and disengage the work object, the elastic part abuts against the stopper, the wrench can effectively restrict the position of the work object by the above structure, avoid the work object from sliding relative to the wrench, and automatically rebound through the stopper design To make the wrench very easy to operate.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent according to the scope of the patent application of the present invention Changes and modifications should still fall within the scope of the invention patent.

10‧‧‧ wrench

20‧‧‧ Ontology

21‧‧‧Handle

22‧‧‧Driver

221‧‧‧Front

222‧‧‧Back

23‧‧‧Drive hole

24‧‧‧ limit slot

25‧‧‧back cover

26‧‧‧first lock

27‧‧‧Second lock

28‧‧‧ Ratchet Ring

29‧‧‧ stop

30‧‧‧stop

31‧‧‧Connection Department

32‧‧‧stop

321‧‧‧ stop flange

33‧‧‧Elastic section

331‧‧‧First curved section

332‧‧‧The second curved section

34‧‧‧Toggle

90‧‧‧Working Object

91‧‧‧Chamfer

92‧‧‧Card Slot

L‧‧‧Virtual shaft

P‧‧‧Virtual datum

R1‧‧‧first radius

R2‧‧‧Second Radius

FIG. 1 is a perspective view of a wrench with a stopper according to the present invention.
FIG. 2 is an exploded perspective view of a wrench having a stop device according to the present invention.
FIG. 3 is a sectional structural view of a wrench having a stop device according to the present invention.
4 is a cross-sectional structural view of a wrench stopper with a stopper device according to the present invention when the stopper is in a first position.
FIG. 5 is a sectional structural view of a wrench stopper with a stopper device of the present invention when it is in a second position.
FIG. 6 is a cross-sectional structural view of the wrench stopper with a stopper according to the present invention from another perspective when the stopper is in the second position.

Claims (14)

A wrench with a stop device includes:
A body comprising a handle and a driving head, the driving head is connected to one end of the handle, the driving head is provided with a front surface along one side of an axis of a virtual rotation axis and is provided on a side opposite to the front surface There is a back side, and the driving head is provided with a driving hole along the axial direction of the virtual rotating shaft. The driving hole penetrates the driving head to communicate the front side and the back side. The body can use the driving hole to sleeve the work object and drive the work object. Taking the virtual rotating shaft as an axis, the body is provided with a stopper;
A stopper is connected to the body. The stopper has a connection portion and a stopper portion. An elastic portion is provided between the connection portion and the stopper portion. The connection portion is fixedly connected. In the driving head, the stopper is disposed on a side of the elastic portion opposite to the virtual rotating shaft (L), and the stopper portion can move relative to the body between the first position and the second position, and the elastic portion The elasticity makes the stopper stay in the first position when it is not subjected to external force. When the stopper is in the first position, the stopper can lock or stop the work entering the drive hole. The stopper In the second position, the stopper moves along the virtual axis of rotation in a direction away from the drive hole and leaves the work, and the elastic part abuts against the stopper. The wrench with a stopper device according to claim 1, wherein the elastic portion abuts against the stopper when the stopper portion is in the first position or the second position. The wrench with a stopper device as described in claim 2, wherein the stopper is convexly provided on the body with an integrally formed structure, and the stopper is cylindrical. The wrench with a stopper device as described in claim 2, wherein the elastic portion extends on a virtual reference plane, the virtual reference plane is perpendicular to the virtual rotation axis, and the elastic portion includes a first bending section and a second bending Segment, the center of curvature of the first curved segment and the center of curvature of the second curved segment are respectively located on two different sides of the elastic portion. The wrench with a stopper device as described in claim 4, wherein when the stopper is in the second position, the stopper abuts the position of the second curved section adjacent to the first curved section. The wrench with a stopper device as described in claim 4, wherein the stopper forms an integrally formed structure, and the cross-sectional area of the elastic portion in the transverse direction is smaller than the cross-sectional area of the connecting portion in the transverse direction and the cross-section of the stopper in the transverse direction. area. The wrench with a stopper device as described in claim 6, wherein the stopper as a whole is formed by bending a metal sheet body. The wrench with a stop device according to claim 6, wherein the average radius of curvature of the first curved section is set to a first radius, the average radius of curvature of the second curved section is set to a second radius, and the second The radius is larger than the first radius. The wrench with a stop device as described in claim 8, wherein the second radius is 1.5 times to 2 times the first radius. The wrench with a stopper device according to claim 8 or 9, wherein the center of curvature of the first curved section is located on a side of the elastic portion adjacent to the driving hole, and the center of curvature of the second curved section is located on the elastic portion phase. Different from a side of the driving hole, the second curved section is located on a side of the first curved section adjacent to the stop portion. The wrench with a stop device according to claim 10, wherein the stopper is provided on the back surface, the stopper is provided on the back surface of the driving head, the connecting portion is fixedly connected to the back surface of the driving head, and the body is The back surface is provided with a limit groove, and a side of the stopper portion adjacent to the back surface is provided with a limit flange, and the limit flange can be movably disposed in the limit groove with respect to the body. The wrench with a stop device according to claim 11, wherein the body is provided with a back cover on the back surface, the back cover is fixedly connected to the back surface through a first locking member and a second locking member, and the first The locking member and the second locking member respectively extend in a direction parallel to the axial direction of the virtual rotating shaft. The first locking member is disposed on the back of the driving head. The first locking member passes through the back cover and is fixedly connected to the plug in an insertion manner. The driving head, the second locking member is disposed on the back of the driving head, the second locking member sequentially passes through the back cover and the stopper and is fixedly connected to the driving head in an inserting manner, so that the stopper The stopper is located between the driving head and the back cover, and the stopper is located between the back surface and the back cover. The wrench with a stopper device as described in claim 11, wherein the stopper is provided with a toggle portion extending from the stopper portion, and the toggle portion is different from a direction parallel to the axial direction of the virtual rotation axis. The direction of the body extends, and the toggle portion is located on a side of the stop portion different from the drive hole. The wrench with a stop device according to claim 11, wherein the body further has a ratchet ring, the ratchet ring is provided between the front and the back of the driving head, and the ratchet ring ring is provided around the driving hole, the The ratchet ring can rotate relative to the driving head with the virtual rotating shaft as an axis.