TWI535539B - Ratchet tool - Google Patents

Description

Ratchet tool device

The invention mainly provides a ratchet tool device, which is applied to the technical field of hand tools, in particular to a ratchet tool device capable of smoothly engaging and retracting teeth.

The wrench tool is one of the necessary tools for assembling and disassembling mechanical parts. The wrench tool is used for tightening or disassembling the screw work such as bolts and nuts. The wrench tool of the conventional wrench has a corresponding groove for the bolt and the nut. Or have a resizable notch, use the groove or notch to fit the bolt and nut, and rotate the wrench tool to assemble and disassemble the mechanical parts. However, the conventional wrench tool needs to be repeatedly disengaged from the mechanical parts, so that the work of tightening or disassembling has been completed. For users who install and unload mechanical parts for a long time, repeated disengagement and fitting are quite troublesome tasks. Therefore, related companies have developed ratchet wrenches, so that users do not need to repeatedly disengage and fit when loading and unloading bolts and nuts. The ratchet wrench is provided with a pivotable ratchet wheel to adjust the pivoting direction for the user. It is not necessary to remove the ratchet from the bolt or the nut to repeat the disassembly and assembly work, thereby improving the user's convenience in operation.

Please refer to the Republic of China Patent Application No. I376291 "ratchet wrench", which includes a wrench grip having a top end and a bottom end; a neck having a cavity, the neck being located at the wrench grip The top surface of the cavity has a receiving groove, and the top surface of the cavity has an opening for sequentially filling a compressible elastic body and a steel ball, the opening is for being inserted and tightly Casing a spring, the The spring has a top inner space; a brake block is located in the cavity; a top end of the brake block has a notch to fit the bottom end of the spring, and the bottom surface of the brake block has two adjacent arcuate grooves; a control rod Provided outside the cavity and interlocking the brake block, and partially extending to the surface of the neck for dislocating the brake pad in the cavity, thereby causing the steel ball to be pushed by the compressible elastic body to be embedded therein One of the two arcuate grooves, whereby the brake block is fixed at an offset position, and at the same time, the spring is correspondingly bent toward one of the left and right sides; a latching block is located at the top end of the cavity, The bottom surface of the latching block has a recess for fitting the top end of the spring, the top surface of the latching block is concave and semi-arc and has a first tooth structure; a bump is disposed in the recess And a top inner space of the spring; and a ratchet driving head at the top end of the neck, having an accommodating space for accommodating a ratchet body, the outer surface of the ratchet body having a second tooth structure corresponding to the first a toothed structure; wherein the spring Bending, it is sustained against the cavity to drive the engaging block offset, so that the first toothed structure engaging the second toothed structure in which one of the left and right sides, thereby to control the working head of the ratchet drive direction.

The first tooth structure of the conventional ratchet wrench and the second tooth structure of the ratchet drive head need to accurately correspond, and the angle and size of the tooth structure need to be quite accurate, and the card block can smoothly and ratchet The second tooth structure of the driving head engages and retracts. If the first tooth structure and the second tooth structure cannot accurately correspond, the card block cannot be engaged with the ratchet driving head. In addition, if the card block is too sharp, it is easy to cause the ratchet drive head to be easily snapped but cannot smoothly retract the tooth. Therefore, in order to accurately process the ratchet drive head, the first tooth is required. The tip of the structure is smoothed and rounded. Such a delicate production process requires a powder metallurgy process to achieve a fine structure, which requires multiple processing and complicated processes. The processing time is long, and the cost is relatively high processing cost. Therefore, it is necessary to develop and provide a lower processing cost, and it has a stable meshing strength and a smooth tooth retracting function, so that the user can smoothly operate the ratchet wrench.

The invention relates to a "ratchet tool device", and the main purpose thereof is to improve the structure of the tooth structure of the conventional technology, which must undergo a fine process to achieve a high precision structure, and can smoothly control the lack of one-way rotation of the ratchet wheel.

In order to achieve the foregoing objects and effects, a first embodiment of the present invention provides a "ratchet tool device", which includes a ratchet tool device including a wrench body, a ratchet wheel, a steering group and an engagement group, wherein: The wrench body is provided with a hole at the head end, and the head end of the wrench body is opened by the hole toward the end of the wrench body, and the hole and the slot are connected to each other; the ratchet set is disposed in the hole; The engaging group includes a first ratchet block, a second ratchet block and an elastic member. The first ratchet block and the second ratchet block are received in the swaying groove, and the two ends of the elastic member respectively are respectively slid to the first The control unit includes a control cover and a limiting member, the control cover is provided with a wrench body and covers the swaying groove, and the control cover is provided with a swaying block and a limit position a slot, the first ratchet block and the second ratchet block are disposed on the swaying block; one end of the limiting member abuts the wrench body, and the other end is located in the limiting slot, and the limiting member is displaced relative to the limiting slot to switch the first A ratchet and a second ratchet are in an engaged or disengaged state with the ratchet.

In the first embodiment of the present invention, the swaying block is provided with a supporting protrusion located in the squeezing groove, and the first spur block and the second spur block are located above the supporting protrusion.

In the first embodiment of the present invention, the swaying block is provided with an arc sliding hole, the first 1. The second ratchet block is provided with a rib slidingly disposed on the arc sliding hole.

In the first embodiment of the present invention, the limiting slot is provided with a first limiting hole, a second limiting hole and a third limiting hole, wherein the wrench body is provided with a positioning groove, and the limiting member The utility model comprises a resilient member and a ball, the two ends of the resilient member abut against the positioning groove and the ball, and the ball is located in the limiting slot, and the ball is displaced relative to the limiting slot to the first limiting hole , the second limit hole or the third limit hole.

In the first embodiment of the present invention, the control cover is provided with a through hole, and the through hole is provided with one end of the ratchet; the outer side of the control cover is provided with a non-slip cut portion, and the surface of the anti-slip portion is an uneven surface.

The second embodiment of the present invention provides a ratchet tool device, comprising a wrench body, a ratchet wheel, a steering group, an engaging group and a limiting group, wherein: the wrench body has a hole in the head end. And the first end of the wrench body is opened by the hole toward the end of the wrench body, the hole and the swaying groove are connected to each other, and the swaying groove is provided with a first arc concave and a second arc concave; the ratchet assembly The engaging portion includes a first ratchet block, a second ratchet block and an elastic member. The first ratchet block and the second ratchet block are received in the swaying groove, and the elastic members are respectively elasticated at two ends. Abutting against the opposite side of the first and second ratchets; the steering group includes a steering block, the steering block is provided with a tilting block that is slidably disposed in the tilting slot, and the steering block covers the tilting slot, The first ratchet block and the second ratchet block are disposed on the turbulent block, and the turbulent block is provided with an abutting groove corresponding to the first arc concave and the second arc concave; the one end of the limiting component abuts against the abutting groove, and the other end abuts The first arc concave positioning or the second arc concave positioning; switching the steering group to make the first ratchet and the second ratchet and the ratchet are in an engaged state or a separated state.

In a second embodiment of the present invention, the limiting component includes a spring and a limit a bead, and one end of the spring abuts against the abutting groove, and the other end abuts the limiting bead, and the limiting bead is displaced relative to the tilting groove to the first arc concave position or the second arc concave position to switch the first ratchet block and the first The two ratchet blocks and the ratchet are in an engaged state or a separated state.

In the second embodiment of the present invention, the swaying block is provided with an arc sliding hole, and the two ends of the arc sliding hole are close to the hole, and the middle portion of the arc sliding hole is away from the hole, and the first and second pieces are respectively provided on one side. The ribs, the first and second ratchets respectively slide the arc sliding holes with the ribs.

In the second embodiment of the present invention, the swaying groove includes an upper arc groove and a lower end groove, the swaying block sliding against the lower end groove, and the first and second ratchet blocks abut the upper arc groove groove wall, thereby Engages with the ratchet.

"First Embodiment"

1‧‧‧Wrench body

11‧‧‧ Holes

12‧‧‧掣动槽

13‧‧‧ positioning groove

2‧‧‧ratchet

3‧‧‧Control group

31‧‧‧Control cover

311‧‧‧掣动块

3111‧‧‧Arc slide hole

312‧‧‧ Limit slot

3121‧‧‧First limit hole

3122‧‧‧Second limit hole

3123‧‧‧ third limit hole

313‧‧‧Support bumps

32‧‧‧Limited parts

321‧‧‧

322‧‧‧Beads

33‧‧‧Perforation

34‧‧‧Slip-cutting

4‧‧‧ Engagement group

41‧‧‧First ratchet

42‧‧‧second ratchet

43‧‧‧Flexible parts

44‧‧‧ ribs

Second Embodiment

5‧‧‧Wrench body

51‧‧‧ hole

52‧‧‧掣动槽

521‧‧‧ first arc concave

522‧‧‧second arc concave

523‧‧‧Upper arc slot

524‧‧‧lower slot

6‧‧‧ ratchet

7‧‧‧ Engagement group

71‧‧‧First ratchet

72‧‧‧second ratchet

73‧‧‧Flexible parts

74‧‧‧ rib

8‧‧‧Control group

81‧‧‧Control block

82‧‧‧掣动块

821‧‧‧

822‧‧‧Arc slide hole

9‧‧‧Limited components

91‧‧‧ Spring

92‧‧‧Limited beads

The first figure is an exploded perspective view of a first embodiment of the present invention.

The second figure is a perspective view of the control cover of the present invention.

The third figure is a combined perspective view of the first embodiment of the present invention.

The fourth, fifth and sixth figures are diagrams of the first embodiment of the present invention.

Figure 7 is an exploded perspective view of a second embodiment of the present invention.

The eighth figure is a combined perspective view of a second embodiment of the present invention.

The ninth and tenth drawings are diagrams of the second embodiment of the present invention.

In order to further illustrate the technical means and efficacy of the present invention for achieving the intended purpose of the invention, the specific embodiment, structure, features and effects of the ratchet tool device according to the present invention will be described below with reference to the accompanying drawings and preferred embodiments. detailed The details are as follows.

Referring to the first to sixth figures, which is a first embodiment of the "ratchet tool device" of the present invention, it comprises a wrench body 1, a ratchet wheel 2, a steering group 3 and an engaging group 4, wherein: A shank end 11 is disposed at the head end of the wrench body 1 , and a boring groove 12 is defined in the head end of the shank body 1 from the hole 11 to the end of the wrench body 1 . The hole 11 and the squeezing groove 12 communicate with each other; The ratchet 2 is disposed in the bore 11; the engaging set 4 includes a first ratchet 41, a second spine 42 and an elastic member 43. The first ratchet 41 and the second ratchet 42 are received in the pocket The control unit 3 includes a control cover 31 and a limiting member 32, and the control cover is disposed on the opposite side of the first and second ratchets 41 and 42 respectively. 31 sets the wrench body 1 and covers the swaying groove 12, and the steering cover 31 is provided with a swaying block 311 and a limiting slot 312. The first spurs 41 and the second spurs 42 are assembled on the swaying block 311, the first ratchet block 41 and the second ratchet block 42 are engaged with the ratchet wheel 2; the end of the limiting member 32 is opposite to the wrench body 1 and the other end is located in the limiting slot 312, and the limiting member 32 is opposite to the limiting slot 312. Displacement to switch the first spine 41 and the second ratchet piece with the ratchet wheel 42 2 is engaged with or disengaged state.

In addition, the sliding block 311 is provided with an arc sliding hole 3111. The arc sliding hole 3111 is adjacent to the hole 11 at both ends, and the middle portion of the arc sliding hole 3111 is away from the hole 11 . The first and second ratchet blocks 41 and 42 respectively A rib 44 is disposed on one side, and the first and second ratchet blocks 41, 42 are respectively slidably provided with the arc sliding hole 3111 by the rib 44.

In addition, the limiting slot 312 is provided with a first limiting hole 3121, a second limiting hole 3122 and a third limiting hole 3123. The wrench body 1 is provided with a positioning groove 13 and the limit is fixed. The member 32 includes a resilient member 321 and a ball 322. The two ends of the elastic member 321 are respectively disposed in the positioning groove 13 and the ball 322, and the ball 322 is located in the limiting groove 312, and the ball 322 is displaced relative to the limiting groove 312 to the first limiting hole 3121. The second limiting hole 3122 or the third limiting hole 3123 (refer to the first figure, the first limiting hole 3121, the second limiting hole 3122, and the third limiting hole 3123 from the right to the left) .

According to the above configuration, the user can switch the control cover 31 according to the use requirement, so that the limiting member 32 is abutted against the first limiting hole 3121, the second limiting hole 3122 or the third limiting hole 3123, please refer to the fourth. As shown in the figure, the actuation process is described in detail below, in which the limiting member 32 is abutted against the second limiting hole 3122, and the first ratchet 41 and the second ratchet 42 are separated from the ratchet 2, at which time the ratchet 2 can be clockwise. And idling counterclockwise.

Referring to the fifth figure, when the steering cover 31 is swung clockwise, and the limiting member 32 is displaced relative to the limiting slot 312 to the first limiting hole 3121, the rotating block 311 drives the engaging group 4 to rotate clockwise. The displacement causes the first ratchet 41 to abut against the ratchet 2 after the inner wall of the left side of the swaying groove 12, and the second ratchet 42 and the ratchet 2 are separated. In this way, the ratchet 2 cannot rotate in the clockwise direction, and can only idle in the counterclockwise direction, and the ratchet 2 abuts against the first ratchet 41 when rotating, so that the first ratchet 41 is displaced and buffered relative to the arc sliding hole 3111, while being elasticized. The piece 43 interlocks the second ratchet block 42 to actuate and reset.

On the other hand, as shown in the sixth figure, when the steering cover 31 is rotated counterclockwise, the limiting member 32 is displaced relative to the limiting slot 312 to the limit of the third limiting hole 3123, and the urging block 311 drives the engaging group. 4 The rotation is rotated counterclockwise so that the second ratchet block 42 abuts against the inner wall of the right side of the tilting groove 12 and the ratchet 2, and the first ratchet 41 is separated from the ratchet 2. Thus, the ratchet 2 cannot rotate counterclockwise, and can only idle in a clockwise direction, and when rotating The ratchet 2 abuts against the second ratchet block 42 to displace the second ratchet block 42 relative to the arc-slide hole 3111, and simultaneously actuate and reset the first ratchet block 41 by the elastic member 43.

Accordingly, the present invention drives the first ratchet block 41 and the second ratchet block 42 to engage the ratchet 2 through a small number of parts to reduce the tolerance problem between the parts to improve the precision of the engagement.

In addition, the swaying block 311 is provided with a supporting protrusion 313 located in the squeezing groove 12, the swaying block 311 and the supporting protrusion 313 are disposed at an angle, and the first spurs 41 and the second spurs 42 are placed on the support Above the bump 313.

It is worth mentioning that the control cover 31 is provided with a through hole 33 which is provided with one end of the ratchet 2 . An outer surface of the control cover 31 is provided with a non-slip surface 34. The surface of the anti-slip portion 34 is an uneven surface, so as to increase the friction of the anti-slip portion 34, so that the user can press the anti-slip portion 34 to control the switch. To the cover 31.

Referring to the seventh embodiment, the second embodiment of the present invention includes a wrench body 5, a ratchet 6, an engagement group 7, a steering group 8 and a limit assembly 9, wherein: A shank end 51 is disposed at the head end of the shank body 5, and a slanting groove 52 is defined in the end of the shank of the shank body 5, and the accommodating hole 51 and the swaying groove 52 are connected to each other. The slanting groove 52 is provided with a first arc concave 521 and a second arc concave 522; the ratchet 6 is disposed in the bore 51; the engaging group 7 includes a first ratchet block 71, a second ratchet block 72 and an elastic The first blade block 71 and the second ratchet block 72 are received in the swaying groove 52, and the two ends of the elastic member 73 respectively abut against the opposite sides of the first and second ratchet blocks 71, 72; The group 8 includes a steering block 81 which is provided with a wrench body 5 and covers the swaying groove 52, and the steering block 81 is provided with a swaying block 82, the first spur block 71 and the second ratchet block 72 are disposed on the swaying block 82 to engage the first ratchet block 71 and the second ratchet block 72 with the ratchet wheel 6. The turbulent block 82 is corresponding to the first arc concave 521 and the second arc concave 522 There is an abutting groove 821; one end of the limiting component 9 abuts against the abutting groove 821, and the other end is positioned against the first arcing concave 521 or the second arcing concave 522; the switching steering group 8 makes the first ratchet 71 and the second spine Block 72 and ratchet 6 are in an engaged or disengaged state.

A further technical feature of the limiting component 9 is further described. The limiting component 9 includes a spring 91 and a limiting bead 92. The spring 91 has one end abutting against the abutting groove 821 and the other end abutting the limiting bead 92. The bead 92 is displaced relative to the tilting groove 52 to the first arc concave 521 or the second arc concave 522; the tilting groove 52 includes an upper arc groove 523 and a lower end groove 524, and the tilting block 82 slides against the lower end groove 524.

Referring to FIG. 9 and FIG. 10 , it illustrates the operation of the limiting component 9 . When the left locking steering block 81 drives the first ratchet block 71 to the left side of the upper arc slot 521 and engages with the ratchet 6 , the limit is The limit bead 92 of the position component 9 is positioned in the first arc concave 521, and in the process of the displacement control block 81, the limit bead 92 extends the bottom groove of the lower end groove 524, and the limit bead 92 compresses the spring 91. The elastic accumulating force is at the first arc concave 521 or the second arc concave 522, and the elastic release of the spring 91 urges the limit bead 92 to be positioned at the first arc concave 521 or the second arc concave 522.

In the second embodiment of the present invention, the swaying block 82 is provided with an arc sliding hole 822. The arc sliding hole 822 has two ends close to the hole 51, and the middle of the arc sliding hole 822 is away from the hole 51. The first and second pieces are arranged. 71 and 72 are respectively provided with a rib 74 on one side, and the first and second ratchet blocks 71 and 72 respectively slide the arc sliding hole 822 with the rib 74.

Please refer to the ninth figure, when the control block 81 is shifted to the left, the limit is made. The spring of the assembly 9 abuts against the first arc concave 521, and the swaying block 82 drives the meshing group 7 to the left to make the first ratchet block 71 abut against the inner wall of the left side of the arc groove 523 and engage with the ratchet 6 , and the second spine Block 72 and ratchet 6 are in a separated state. In this way, the ratchet 6 cannot rotate in the clockwise direction, and can only idle in the counterclockwise direction, and the ratchet 6 abuts against the first ratchet block 71 when rotating, so that the first ratchet block 71 is displaced and buffered relative to the arc sliding hole 822 while being spring-loaded by the spring. 91 interlocks the second ratchet 72 to actuate and reset.

On the contrary, referring to the tenth figure, when the steering block 81 is displaced to the right, the spring 91 of the limiting component 9 is brought into the second arc concave 522, and the rotating block 82 drives the meshing group to the right to make the second The ratchet block 72 is engaged with the ratchet 6 after the inner wall of the right side of the arc groove 523, and the first ratchet block 71 and the ratchet 6 are separated. In this way, the ratchet 6 cannot rotate in the counterclockwise direction, and can only idle in the clockwise direction, and the ratchet 6 abuts against the second ratchet 72 when rotating, so that the second ratchet 72 is displaced and buffered relative to the arc sliding hole 822, and by the spring 91 interlocks the first ratchet 71 to actuate and reset.

The above description is only intended to explain the preferred embodiments of the present invention, and is not intended to limit the invention in any way. The changer should still be included in the scope of the intention of the present invention.

In summary, the "ratchet tool device" of the present invention is indeed in full compliance with the needs of industrial development, and the disclosed structural invention has an unprecedented innovative structure, so that it has "novelty". It should be undoubtedly considered that the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law. It is a patent application filed in accordance with the law, and I would like to ask the bureau for an early review and give it affirmation.

1‧‧‧Wrench body

11‧‧‧ Holes

12‧‧‧掣动槽

13‧‧‧ positioning groove

2‧‧‧ratchet

3‧‧‧Control group

31‧‧‧Control cover

311‧‧‧掣动块

3111‧‧‧Arc slide hole

312‧‧‧ Limit slot

3121‧‧‧First limit hole

3122‧‧‧Second limit hole

3123‧‧‧ third limit hole

313‧‧‧Support bumps

32‧‧‧Limited parts

321‧‧‧

322‧‧‧Beads

33‧‧‧Perforation

34‧‧‧Slip-cutting

4‧‧‧ Engagement group

41‧‧‧First ratchet

42‧‧‧second ratchet

43‧‧‧Flexible parts

44‧‧‧ ribs

Claims (8)

A ratchet tool device includes a wrench body, a ratchet wheel, a steering group and a meshing group, wherein: the wrench body has a hole at the head end, and the head end of the wrench body passes from the hole to the end of the wrench body a slanting groove is formed in the direction, the hole and the squeezing groove are connected to each other; the ratchet wheel is disposed in the hole; the engaging group comprises a first ratchet block, a second ratchet block and an elastic member, the first spine The block and the second spine are received in the swaying groove, and the two ends of the elastic member respectively are opposite to the opposite sides of the first and second ratchets; the steering group includes a control cover and a limiting member, and the control A wrench body is arranged to cover the cover body, and the tilting groove is closed, and the steering cover is provided with a swaying block and a limiting slot, and the first and second ratchet blocks are disposed on the swaying block, and the swaying block is provided The first bumper and the second spine are located on the support protrusion; the one end of the limiting member abuts the wrench body, and the other end is located in the limiting slot, the limiting member Relative to the limit slot displacement, the first ratchet block and the second ratchet block are switched to be in an engaged state or a separated state. The ratchet tool device of claim 1, wherein the rocking block is provided with an arc sliding hole, and the first and second ratchet blocks are provided with a rib slidingly disposed on the arc sliding hole. The ratchet tool device of claim 2, wherein the limiting slot is provided with a first limiting hole, a second limiting hole and a third limiting hole respectively communicating with each other, the wrench body is provided There is a positioning groove, and the limiting member comprises a resilient member and a ball, the two ends of the resilient member abut against the positioning groove and the ball, and the ball is located in the limiting groove, and the ball is relatively limited The bit groove is displaced to the first limit hole, the second limit hole or the first Three limit holes. The ratchet tool device of claim 1, wherein the steering cover is provided with a through hole that is sleeved at one end of the ratchet. The ratchet tool device of claim 1, wherein the outer side of the control cover is provided with a non-slip cut surface, and the surface of the anti-slip cut portion is an uneven surface. A ratchet tool device includes a wrench body, a ratchet wheel, a steering group, an engaging group and a limiting group, wherein: the wrench body has a hole at the head end, and the head end of the wrench body is a hole is formed in the direction of the end of the wrench body, the hole and the swaying groove are connected to each other, and the swaying groove is provided with a first arc concave and a second arc concave; the ratchet wheel is disposed in the cavity; the meshing group The first ratchet block and the second spine block are accommodated in the swaying groove, and the two ends of the elastic member respectively impinge on the first and second spines The opposite direction of the block; the steering group includes a steering block, the steering block is provided with a rocking block that is slidably disposed in the swaying groove, and the steering block covers the swaying groove, and the swaying block is provided with an arc slid a hole, the two ends of the arc sliding hole are close to the hole, and the middle part of the arc sliding hole is away from the hole, and the first and second pieces are respectively provided with a rib on one side, and the first and second pieces are respectively The rib slides an arc sliding hole, and the swaying block is provided with an abutting groove corresponding to the first arc concave and the second arc concave; the limiting component has one end abutting the abutting groove and the other end abutting Positioning a concave arc or the second positioning concave arc; Accordingly, switching control to set the first ratchet and the second ratchet piece is engaged with the ratchet block state or a separated state. The ratchet tool device according to claim 6, wherein the limit The position component includes a spring and a limiting bead, and one end of the spring abuts against the abutting groove, and the other end abuts the limiting bead, and the limiting bead is displaced relative to the tilting groove to the first arc concave position or the second arc concave position. The first ratchet block and the second ratchet block are switched to be in an engaged state or a separated state. The ratchet tool device according to any one of claims 6 to 7, wherein the swaying groove includes an upper arc groove and a lower end groove, the swaying block sliding against the lower end groove, and the first A ratchet and a second ratchet abut against the upper arc slot wall to engage the ratchet.