TW202030054A - Wrench having stopping device - Google Patents

Abstract

A wrench with the stopping device comprises a body and a stopping member. The body includes a driving head provided with a driving hole. The body is provided with a stopper. The stopping member is connected to the body and has a connecting portion and a stopping portion, and an elastic portion disposed between the connecting portion and the stopping portion. The connecting portion is fixedly connected to the driving head, and the stopper is disposed on a side of the elastic portion opposite to a virtual rotating axis. The stopping portion is movable relative to the body between a first position and a second position, and the elastic portion enables the stopping portion to remain in the first position when the external force is not applied thereon. The stopping portion can stop or engage a workpiece when the stopping portion is in the first position. The stopping portion is detached from the workpiece, and the elastic portion abuts against the stopper when the stopping portion is in the second position. Thus, the wrench can effectively limit the position of the workpiece by the above structure.

Description

Wrench with stop device

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

Please refer to the patent case of "Wrench with Stop Device" of China Patent No. I637820, 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 part and a stopper, and an elastic part is arranged between the connecting part and the stopper, and the connecting part is fixedly connected to the driving head. The elastic part 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 main body between the first position and the second position, and the elastic part The elasticity keeps the stopper in the first position when no external force is applied. When the stopper is in the first position, the stopper can catch or stop the work object. When the stopper is in the second position, the stopper is separated 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 torsion force, and the second locking member is only small The pin, repeated torsion will cause the second locking member to fail to fix the stopper, and the stopper cannot perform its original function after rotating relative to the driving head.

In view of the shortcomings of the above-mentioned conventional structure, the present inventor is devoted to designing a wrench with a stop device, which can overcome all the shortcomings 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. The head is provided with a front side along the axial direction of a virtual shaft and a back side on the side 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 penetrates the driving hole. The head is connected to the front and the back, the body can use the drive hole to sleeve the work object and drive the work object to rotate around the virtual shaft, the main body is provided with a stopper, and the stopper is connected to the main body, The stopper has a connecting portion and a stopping portion, and an elastic portion is arranged between the connecting portion and the stopping portion, the connecting portion is fixedly connected to the driving head, and the stopping block is arranged opposite to the elastic portion On one side of the virtual shaft, the stopper can move relative to the main body between a first position and a second position, and the elasticity of the elastic portion keeps the stopper in the first position when no external force is applied , When the stopper is in the first position, the stopper can block or stop the work object entering the driving hole, when the stopper is in the second position, the stopper is radially away from the virtual shaft The direction of the driving hole moves and separates from the work object, the elastic portion abuts against the stop, the wrench can effectively limit the position of the work object by the above structure, and prevent the work object from sliding relative to the wrench and pass through the stopper The automatic rebound design makes the wrench very convenient to operate.

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

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

The elastic portion extends on a virtual reference plane which is perpendicular to the virtual axis of rotation. 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 curved section The centers of curvature of the segments are respectively located on two different sides of the elastic part.

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

The stopper forms an integral 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-sectional area of the stop portion in the transverse direction.

The stopper is integrally formed by bending a sheet metal body.

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

The second radius is 1.5 times or more to 2 times or less the first radius.

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

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

The main 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 locking member and the second locking member are respectively parallel to the virtual shaft axis The first locking member is provided 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 provided on the back of the driving head. On the back, 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 and the back cover.

The stopper is provided with a dial portion extending from the stop portion, the dial portion extends in a direction parallel to the axial direction of the virtual rotating shaft in a direction different from the main body, and the dial portion is located at the stop portion It is different from the side of the drive hole.

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

Other objectives, 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 of the present invention, a preferred embodiment is given in conjunction with the drawings to describe in detail. This is for illustrative purposes only, and is not limited by this structure in the patent application.

Please refer to FIGS. 1 to 4, which are a three-dimensional appearance view, a three-dimensional exploded view and a cross-sectional structure view of the wrench with a stop device of the present invention. The wrench 10 of the present invention includes a body 20 and a stopper 30; wherein:

The main body 20 includes a handle 21 and a drive head 22, the drive head 22 is connected to one end of the handle 21, and the drive head 22 is provided with a front face 221 on one side along the axis of a virtual rotation axis L and opposite to the drive head 22. One side of the front surface 221 is provided with a back surface 222, 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 and communicates with the front surface 221 and the back surface 222. The main body 20 can sleeve the work 90 with the driving hole 23 and drive the work 90 to rotate about the virtual rotation axis L as the axis.

The main body 20 is provided with a limiting slot 24 on the back 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 locking member 26 and a second locking member 27. The first locking member 26 and the second locking member The members 27 respectively extend in directions parallel to the axial direction of the virtual rotation axis L. The first locking member 26 is disposed on the back 222 of the driving head 22. The first locking member 26 passes through the back cover 25 and is fixedly connected to The drive head 22.

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

The main body 20 is provided with a stop 29, the stop 29 is disposed on the back surface 222, the stop 29 protrudes from the main body 20 in an integral structure, and the stop 29 is cylindrical.

The stopper 30 is connected to the main body 20. The stopper 30 is arranged on the back 222 of the drive head 22 in this embodiment. The stopper 30 has a connecting portion 31 and a stopper 32 and is attached to the 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 222 of the driving head 22, and the second locking member 27 is provided on the back 222 of the driving head 22. The second locking member 27 sequentially passes through the back cover 25 and the stopper 30 and is fixedly connected to the driving head 22 in an insertion manner, so that the stopper 30 is located between the driving head 22 and the back cover 25. The stopper 30 is integrally formed by bending a sheet metal body and forms an integral 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 stop portion 32 in the transverse direction. The blocking block 29 is disposed on a side of the elastic portion 33 opposite to the virtual rotation axis L, and the blocking block 29 is located between the back surface 222 and the back cover 25.

The stopper 30 is provided with a dial portion 34 extending from the stop portion 32. The dial portion 34 extends in a direction parallel to the axial direction of the virtual rotation axis L in a direction different from the main body 20. The dial The portion 34 is located on a side of the stop portion 32 different from the driving hole 23. A limiting flange 321 protrudes from a side of the stop portion 32 adjacent to the back surface 222, and 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 which 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 curved section 332 and the center of curvature of the second curved section 332 are respectively located on two different sides of the elastic portion 33. The center of curvature of the first curved section 331 is located on the side of the elastic portion 33 adjacent to the driving hole 23. The center of curvature 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 the side of the first curved section 331 adjacent to the stop portion 32, the average radius of curvature of the first curved section 331 is set to a first radius R1, and the average curvature of the second curved section 332 The radius is set as a second radius R2, the second radius R2 is larger than the first radius R1, and the second radius R2 is 1.5 times or more to 2 times or less of the first radius R1 in this embodiment.

Please continue to refer to FIG. 5 and FIG. 6, which are the cross-sectional structure diagrams of the wrench stopper with the stopper device of the present invention in the second position. The stopping portion 32 can move relative to the main body 20 between a first position and a second position, and the elasticity of the elastic portion 33 keeps the stopping portion 32 in the first position when no external force is applied. When the portion 32 is in the first position (as shown in FIG. 4), the stop portion 32 can catch or stop the work piece 90 entering the driving hole 23. When the stop portion 32 is in the second position (as shown in FIG. (Shown), the stop portion 32 moves radially away from the driving hole 23 along the virtual rotation axis L and separates from the work object 90.

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

In this embodiment, the working object 90 is a sleeve. When the wrench 10 is used to turn the working object 90, 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 hard. The stop portion 32 of the stopper 30 slides along the chamfer of the work piece 90 and moves to the second position until the stop portion 32 is aligned with the slot 92 of the work piece 90, and the stop portion 32 can return It springs to the first position and snaps into the slot 92 of the working object 90 so that the working object 90 cannot be separated from the wrench 10. The wrench 10 can effectively limit the position of the working object 90 through 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 stop portion 32 automatically rebounds, so that the wrench 10 is very Easy to operate. When the work object 90 is to be withdrawn, the user can toggle the dial portion 34 to move the stop portion 32 to the second position and separate from the work object 90. With the design of the above-mentioned shape, the elastic portion 33 can exert excellent elasticity. In addition to effectively pushing the stop portion 32 into the slot 92 of the work object 90, the resistance of the user's movement will not be too large. And it is not easy to break. At the same time, through the design that the limiting flange 321 is disposed in the limiting groove 24, it is effectively prevented that the elastic portion 33 is excessively deformed due to the excessive force applied by the user.

Through the design of the stopper 29 against the elastic portion 33, the stopper 30 and the driving head 22 can be positioned at two points by the second locking member 27 and the stopper 29, so that the position of the stopper 30 Being restricted by the stopper 29, there will be no situation where 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 will be blocked by the stopper 32 because the chamfer of the screw or nut is small or even without chamfer. Unable to exit from the back 222, the user can easily and quickly turn the screw or nut repeatedly (not shown).

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

1. The wrench with a stop device of 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, the driving head is along a A front side is provided on one side of the virtual shaft in the axial direction and a back side is provided on the side 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 penetrates the driving head to communicate The front surface and the back surface, the main body can use the driving hole to sleeve the work object and drive the work object to rotate about the virtual rotating shaft, the main body is provided with a stopper, the stopper is connected to the main body, and the stopper The member has a connecting portion and a stopping portion, and an elastic portion is arranged between the connecting portion and the stopping portion. The connecting portion is fixedly connected to the driving head, and the stopping block is arranged on the elastic portion opposite to the virtual On one side of the rotating shaft, the stopper can move relative to the body between the first position and the second position, and the elasticity of the elastic portion keeps the stopper in the first position when no external force is applied. When the stopper is in the first position, the stopper can block or stop the work object entering the driving hole. When the stopper is in the second position, the stopper moves away from the driving hole radially along the virtual shaft The elastic part abuts against the stop, the wrench can effectively limit the position of the working object by the above structure, avoiding the sliding of the working object relative to the wrench, and automatically rebound through the stop The design makes the wrench very convenient to operate.

However, the above are only preferred embodiments of the present invention. When they cannot be used to limit the scope of implementation of the present invention, all numerical changes or replacements of equivalent elements or equivalents made in accordance with the scope of the patent application of the present invention are mentioned. Changes and modifications should still fall within the scope of the invention patent.

10: Wrench 20: body 21: handle 22: Drive head 221: front 222: Back 23: drive hole 24: limit slot 25: back cover 26: The first locking piece 27: The second locking piece 28: Ratchet ring 29: stop 30: stop 31: Connection part 32: Stop 321: limit flange 33: Elastic part 331: first bending section 332: second bending section 34: Toggle part 90: Work 91: chamfer 92: card slot L: Virtual shaft P: Virtual datum R1: first radius R2: second radius

Figure 1: is a perspective view of the wrench with a stop device of the present invention. Figure 2: is a perspective exploded view of the wrench with a stop device of the present invention. Figure 3 is a cross-sectional structural view of the wrench with a stop device of the present invention. Fig. 4 is a cross-sectional structural view of the wrench stopper with the stopper device of the present invention in the first position. Figure 5: is a cross-sectional structural view of the wrench stopper with the stopper device of the present invention in the second position. Fig. 6 is a cross-sectional structural view of the wrench stopper with a stop device in the second position of the present invention from another perspective.

20: body

22: Drive head

222: Back

23: drive hole

24: limit slot

25: back cover

26: The first locking piece

27: The second locking piece

28: Ratchet ring

29: stop

30: stop

31: Connection part

32: Stop

33: Elastic part

34: Toggle part

90: Work

Claims (14)

A wrench with a stop device, which includes: A body includes a handle and a drive head, the drive head is connected to one end of the handle, and the drive head is provided with a front face on one side along a virtual shaft axis and a side opposite to the front face. There is a back, 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 connect the front and the back, and the main body can sleeve the work with the driving hole and drive the work Rotate with the virtual shaft as the axis, and the body is provided with a stopper; A stopper, the stopper is connected to the body, the stopper has a connecting portion and a stopper, and an elastic portion is arranged between the connecting portion and the stopper, and the connecting portion is fixedly connected In the driving head, the stopper is disposed on the side of the elastic part opposite to the virtual shaft (L), the stop part can move relative to the main body between the first position and the second position, and the elastic part The elasticity of the stopper keeps the stopper in the first position when no external force is applied. When the stopper is in the first position, the stopper can catch or stop the work object entering the driving hole. The stopper When in the second position, the stop portion moves radially away from the driving hole along the virtual rotating shaft and separates from the work object, and the elastic portion abuts against the stop block. The wrench with a stopping device according to claim 1, wherein the elastic part abuts against the stopping block no matter whether the stopping part is in the first position or the second position. The wrench with a stop device as described in claim 2, wherein the stop is protruded from the body in an integral structure, and the stop is cylindrical. The wrench with a stopping device according to claim 2, wherein the elastic portion extends on a virtual reference plane, the virtual reference plane is perpendicular to the virtual shaft, and the elastic portion includes a first bending section and a second bending The center of curvature of the first curved section and the center of curvature of the second curved section are respectively located on two different sides of the elastic part. The wrench with a stopping device according to claim 4, wherein when the stopping portion is in the second position, the stopping block abuts against a position of the second bending section adjacent to the first bending section. The wrench with a stop device according to claim 4, wherein the stopper forms an integral 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 stop portion in the transverse direction area. The wrench with a stopping device according to claim 6, wherein the stopping piece is integrally formed by bending a sheet metal 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 radius The radius is greater than the first radius. The wrench with a stopping device according to claim 8, wherein the second radius is 1.5 times or more and 2 times or less of the first radius. The wrench with a stopping device according to claim 8 or 9, wherein the center of curvature of the first curved section is located on the side of the elastic portion adjacent to the driving hole, and the center of curvature of the second curved section is located on the side of the elastic portion. Different from the side of the driving hole, the second curved section is located on the side of the first curved section adjacent to the stop portion. The wrench with a stop device according to claim 10, wherein the stop is arranged on the back, the stop is arranged on the back of the driving head, the connecting part is fixedly connected to the back of the driving head, and the body is The back surface is provided with a limiting groove, a side of the stopping portion adjacent to the back surface is protrudingly provided with a limiting flange, and the limiting flange is movably arranged in the limiting groove relative to the body. The wrench with a stopping device according to claim 11, wherein the 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, and the first The locking member and the second locking member respectively extend in a direction parallel to the axial direction of the virtual shaft. The first locking member is arranged on the back of the driving head. The first locking member passes through the back cover and is fixedly connected to The driving head, the second locking member is arranged on the back of the driving head, the second locking member passes through the back cover and the stopper in sequence, and is fixedly connected to the driving head in an insertion manner, so that the stopper Located between the driving head and the back cover, the stopper is located between the back surface and the back cover. The wrench with a stop device according to claim 11, wherein the stop member is provided with a dial portion extending from the stop portion, and the dial portion is different from the direction parallel to the axial direction of the virtual shaft The direction of the body extends, and the dial portion is located on a side of the stop portion different from the driving hole. The wrench with a stopping device according to claim 11, wherein the body further has a ratchet ring, the ratchet ring is arranged between the front and back of the driving head and the ratchet ring is arranged around the driving hole, the The ratchet ring can rotate relative to the driving head with the virtual rotating shaft as the axis.

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