TWI499485B - Replacement Ratchet Wrench (2) - Google Patents

Description

Reversing ratchet wrench (2)

The invention relates to a ratchet wrench structure, in particular to a reversing ratchet wrench (2) which has both durability and flexibility.

According to a conventional ratchet wrench structure, as shown in FIG. 12, the wrench 50 is assembled with a rotating member 60 at one end, and the rotating member 60 can be rotated at the end of the wrench 50, thereby pulling the nut Or the bolt is locked and unscrewed, and a toothed ring 61 is disposed on the outer edge of the rotating member 60, and a ratchet member 70 is coupled to the corresponding tooth on the side of the ring gear 61, and the ratchet member 70 can move on the wrench 50. The inner first chamber 51, the ratchet member 70 is formed with a curved surface 71 on the other end surface of the toothed rotating member 60, and the wrench 50 communicates with the second chamber 52 at the first chamber 51. The second slot chamber 52 is provided with a control block 80, and the control block 80 defines a jack 81, and a spring 82 is disposed at the jack 81, and a sleeve 83 is sleeved on the top end of the spring 82 to make the sleeve 83 is pushed by the spring 82 against the curved surface 71 of the ratchet member 70, and the control block 80 controls the abutment 83 to select the ratchet member 70 to be disposed on different sides of the first groove chamber 51, so that a single sheet can be produced. Pull the effect to the drive.

Looking at the above-mentioned conventional structure is not difficult to find that there are still some shortcomings. The main reasons are as follows:

(1) The spring 82 and the abutment 83 are interposed between the ratchet member 70 and the control block 80, and one end of the abutment 83 is pushed by the spring 82, and the other end of the abutment sleeve 83 is slid against the ratchet member. The curved surface 71 of the 70, when the ratchet member 70 is pulled by the wrench 50 to generate vibration or is switched at the control block 80, the one end of the abutting sleeve 83 slides on the curved surface 71 of the ratchet member 70, and the other end will be laterally Friction on the insertion hole 81 of the control block 80, the abutment sleeve 83 and the spring 82 are easily ejected or deformed by the insertion hole 81, and resistance is formed to reduce the operational stability thereof, and the structural strength is insufficient and the commutation is not smooth. The problem.

Second, the assembly step of the wrench 50 is to first install the control block 80 at the second slot chamber 52, and firstly perform the fastening and fixing of the control block 80, and the control block 80 can only perform the rotation operation, and further by the first The spring 82 is placed in the insertion hole 81 at the end of the groove chamber 51, and the abutment 83 is sleeved on the top end of the spring 82. Since the opening of the first groove chamber 51 faces the direction of the rotating member 60, the action of the mounting spring 82 is not easy to be performed. The spring 82 and the abutting sleeve 83 have a small volume, which is easy to be dropped or lost during the assembly process, and a limit spring 84 is further provided at the end of the wrench 50, which further improves the assembly difficulty. There is a lack of easy assembly and excessive assembly.

3. The spring 82 and the abutment 83 are interposed between the ratchet member 70 and the control block 80, and one end of the abutment 83 is pushed by the spring 82, and the other end of the abutment sleeve 83 is slid against the ratchet member 70. The arc surface 71, when the ratchet member 70 is actuated, the abutment sleeve 83 can push the spring 82 to expand and contract, so that the movable space of the ratchet member 70 will be maintained between the ratchet member 70 and the control block 80, so that the sleeve 83 is provided. Excessive protrusion of the spring 82 outside the insertion hole 81 reduces the positioning effect of the abutment 83 and the spring 82.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention is to provide a reversing ratchet wrench (2) in view of the above-mentioned shortcomings existing in the prior art.

A wrench body has a ratchet portion formed at one end thereof, and an operating opening and a circular hole are defined in the ratchet portion, and an arcuate ratchet groove is communicated between the actuating opening and the circular hole, and a control member has a handle and is at the end of the handle Forming a circular plate, and a half cylinder extending from one side of the circular plate is inserted through the semi-cylindrical hole in the circular hole of the wrench body, and the semi-cylindrical parallel plate is convexly provided with a first baffle and a second baffle. And the first baffle and the second baffle are separated by a limiting slot, and the semi-cylindrical defines a deep hole at the position of the limiting slot, and a spring is arranged at the deep hole to make the first baffle and the second block The plate and the spring are all facing the arc-shaped ratchet groove, a ratchet member is formed with an arc-shaped tooth at one end, and a circular arc surface is formed at the other end, so that the ratchet member can be slidably disposed on the arc-shaped ratchet groove with a circular arc surface, and the ratchet wheel a first groove and a second groove are recessed in the arc surface, and a limiting block is disposed between the first groove and the second groove, and the limiting block is received in the control piece Limit slot, making the first The baffle is disposed at the first groove, and the second baffle is disposed at the second groove, thereby forming a limiting effect between the control member and the ratchet member, and the limiting block is concavely opposed to the spring At one end, a rotating member is assembled at the actuating opening of the wrench body, and a toothed ring is formed on the outer edge of the rotating member, and the ratchet member is pushed through the spring so that the curved teeth of the ratchet member are normally engaged with the ring gear. .

The wrench body defines a fixing groove at the inner edge of the actuating opening, and a ring groove is recessed in the outer edge of the rotating member, and a C-shaped fastener is fitted into the ring groove, and is elastically coupled to the C-shaped fastener to actuate The fixing groove of the mouth further forms a combination of the wrench body and the rotating member.

Wherein, the limiting block is formed in a concave shape toward the control member to form two symmetrical abutting surfaces, thereby forming a spring positioning of the forward and reverse steering.

Wherein, an outer convex curved surface is formed between the two abutting surfaces, and the outwardly convex curved surface is used to increase the reversing speed of the positive reversal.

Wherein, the outer sides of the two abutting surfaces are formed with a retaining wall to improve the limiting effect on the spring.

The first main object of the present invention is that the control member is respectively provided with a first baffle and a second baffle on both sides of the limiting slot, and the limiting slot is provided with a deep hole for providing insertion of one end of the spring. The semi-cylindrical portion of the control member is placed in the circular hole of the wrench body, and is received by the ratchet member in the arc-shaped ratchet groove, and the limiting block transmitted through the ratchet member is inserted into the limiting groove of the control member, so that The first and second baffles are respectively disposed at the positions of the first groove and the second groove, which can not only form the limit of the control member, but further form the pair by using the two abutting surfaces of the first and second baffles and the limiting block. The spring is covered, so that the spring can only move in a small space, so as to effectively prevent the spring from being detached and stuck, and improve the smoothness of the pulling and reversing, and the durability and flexibility.

A second main object of the present invention is that the wrench body is provided with a circular hole, an arcuate ratchet groove and an actuating port, and the control member and the spring are disposed in the round hole, and then the ratchet member is in contact with the ratchet member to form a limit of the control member. Finally, the rotating member is directly fixed by the C-shaped fastener, which can form a quick combination of the structure, not only has the advantages of less components, easy production and manufacture, but also has the practical effect of convenient combination.

A third main object of the present invention is that the limiting block is formed with two symmetrical abutting surfaces in a concave shape toward the direction of the control member, thereby forming a spring positioning of the forward and reverse steering, and a convex curved surface is formed between the two opposing surfaces. When the control member performs the reversing action, the spring passes over the convex curved surface When the sliding direction is accelerated to the abutting surface, the outwardly convex curved surface can be used to increase the reversing speed of the positive reversal, so that the operation control member performs the reversing action more smoothly.

A fourth main object of the present invention is that the ratchet member forms a finite block on the circular arc surface, and a retaining wall is formed on the outer sides of the two resisting surfaces of the limiting block to further block the spring, thereby improving the spring. Limit effect.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

[this creation]

10‧‧‧Wrench body

11‧‧‧ratchet

12‧‧‧ actuation

121‧‧‧fixed slot

13‧‧‧ round hole

14‧‧‧Arc ratchet groove

20‧‧‧Controls

21‧‧‧ handle

22‧‧‧ round board

23‧‧‧Semi-cylinder

24‧‧‧First baffle

25‧‧‧second baffle

26‧‧‧Limited slot

261‧‧‧Deep hole

27‧‧‧ Spring

30‧‧‧ ratchet parts

31‧‧‧Arc teeth

32‧‧‧Arc face

33‧‧‧First Groove

34‧‧‧Second trough

35‧‧‧Limited blocks

351 (352) ‧ ‧ 抵 面

353‧‧‧Outer convex curved surface

354 (355) ‧ ‧ retaining wall

40‧‧‧Rotating parts

41‧‧‧ Ring groove

42‧‧‧C-shaped fasteners

43‧‧‧ tooth ring

[study]

50‧‧‧Wrench

51‧‧‧First chamber

52‧‧‧Second trough room

60‧‧‧Rotating parts

61‧‧‧ tooth ring

70‧‧‧ ratchet parts

71‧‧‧Arc face

80‧‧‧Control block

81‧‧‧ jack

82‧‧ ‧ spring

83‧‧‧

84‧‧‧Limited spring

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is an exploded perspective view of the control member and the ratchet member of the present invention.

Figure 4 is a perspective partial cross-sectional view of the present invention.

Fig. 5 is a schematic view (1) of the operation of the control member of the present invention in a clockwise yaw state.

Fig. 6 is a schematic view showing the operation of the control member of the present invention in a clockwise state (2).

Fig. 7 is a schematic view showing the operation of the control member of the present invention in a clockwise state (3).

Fig. 8 is a schematic view showing the operation of the control member of the present invention in a counterclockwise state (1).

Figure 9 is a perspective exploded view of another use state of the present invention.

Figure 10 is a perspective exploded view of the control member and the ratchet member in another state of use of the present invention.

Figure 11 is a cross-sectional view showing another use state of the present invention.

Figure 12 is a cross-sectional view showing the structure of a conventional wrench.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: First, please refer to Figure 1, Figure 2 and Section 3. As shown in the figure, a reversing ratchet wrench (2) includes a wrench body 10, a control member 20, a ratchet member 30 and a rotating member 40. A wrench body 10 is formed with a ratchet portion 11 at one end thereof. An operation port 12 and a circular hole 13 are defined in the ratchet portion 11 , and an arc-shaped ratchet groove 14 is communicated between the actuation port 12 and the circular hole 13 . A fixing groove 121 is defined in the inner edge of the operating portion 12, a control member 20 has a handle portion 21, and a circular plate 22 is formed at the end of the handle portion 21. The circular plate 22 has a half cylinder 23 extending through one side thereof. The semi-cylindrical 23 is inserted into the circular hole 13 of the wrench body 10, and the semi-cylindrical 23 is parallel with the first baffle 24 and the second baffle 25, and is defined by the first baffle 24 and the second baffle 23 The second baffle 25 is spaced apart by a limiting slot 26, and the semi-cylindrical 23 defines a deep hole 261 at the position of the limiting slot 26, and a spring 27 is disposed at the deep hole 261 to make the first baffle 24 and the second block The plate 25 and the spring 27 are both facing the arc-shaped ratchet groove 14. One end of the ratchet member 30 is formed with a curved tooth 31, and the other end is formed with a circular arc surface 32, so that the ratchet member 30 can be slid on the circular arc surface 32. An arcuate ratchet groove 14 is defined in the arcuate surface 32 with a first groove 33 and a second groove 34, and a limit is formed between the first groove 33 and the second groove 34. The block 35 is accommodated at the limiting slot 26 of the control member 20 such that the first baffle 24 is disposed at the first slot 33 and the second baffle 25 is disposed at the second slot At the groove 34, a limiting effect between the control member 20 and the ratchet member 30 is formed, and the limiting block 35 is concavely opposed to one end of the spring 27, that is, the limiting block 35 is oriented toward the control member 20 Two symmetrical abutting surfaces 351 (352) are formed in the concave shape to form a spring 27 for positive and negative steering. A rotating member 40 is assembled at the operating opening 12 of the wrench body 10. The outer edge of the rotating member 40 is recessed with a ring groove. 41, and a C-shaped fastener 42 is fitted to the ring groove 41, and is elastically coupled to the fixing groove 121 of the actuating opening 12 by the C-shaped fastening member 42, thereby forming a combination of the wrench body 10 and the rotating member 40, and The outer edge of the rotating member 40 is formed with a ring gear 43 through which the ratchet member 30 is pushed to cause the arcuate teeth 31 of the ratchet member 30 to be normally engaged with the ring gear 43.

The combination of the structures is further illustrated in FIG. 1 to FIG. 5. The spring 27 is received in the deep hole 261 of the control member 20, so that the spring 27 is partially protruded from the limiting slot 26. The first baffle 24 and the second baffle 25 are disposed on both sides of the first baffle 24 and the second baffle 25, and the control member 20 is inserted into the circular hole 13 of the wrench body 10 by the semi-cylindrical 23 to make the first baffle 24 and the second baffle 25 and the spring 27 are both oriented toward the arcuate ratchet groove 14 of the wrench body 10, and then the ratchet member 30 is placed into the arcuate ratchet groove 14 by the actuating port 12, so that the arcuate surface 32 of the ratchet member 30 is in contact with the arcuate ratchet groove 14. And the first groove 45 is received by the first groove 34, and the limiting block 35 of the ratchet member 30 is inserted into the limiting groove 26 of the control member 20, and the first groove 33 accommodates the first baffle 24, And the second groove 34 accommodates the second baffle 25, so that the control member 20 cannot be disengaged from the wrench body 10 by the circular hole 13, and the control member 20 can only be rotated by the handle 21, and the spring 27 is limited. One end of the groove 26 is in contact with the concave The limiting block 35 is formed by the first baffle 24, the second baffle 25 and the two abutting surfaces 351 (352) to form a covering of the spring 27, which can effectively prevent the spring 27 from coming off the deep hole 261 of the control member 20. When the bending is stuck, the rotating member 40 is finally placed at the position of the working port 12 of the wrench body 10, and is clamped between the fixing groove 121 and the ring groove 41 by the C-shaped fastener 42 to form the rotating member 40 and The connection of the wrench body 10 enables the curved teeth 31 of the ratchet member 30 to be engaged with the ring groove 41 of the rotary member 40, and the ratchet member 30 can be prevented from being disengaged from the actuation port 12, thereby completing the assembly step thereof.

For the actual use, the sixth and seventh figures are matched with the figures shown in Figs. 2 and 3, and the control member 20 is biased against the limit block of the ratchet member 30 by the spring 27 at the limiting groove 26. 35, and selectively contacting one of the abutting faces 351 according to the pulling direction of the wrench body 10, while biasing the ratchet member 30 to one side of the arcuate ratchet groove 14, and being engaged by the curved teeth 31 of the ratchet member 30 The ring gear 43 of the rotating member 40, in this state, the two sides of the spring 27 are respectively sandwiched by the first baffle 24 and the second baffle 25, and the limiting groove 26 of the control member 20 is further subjected to a ratchet The limiting block 35 of the member 30 is enclosed so that the spring 27 can only move in a narrow space, so that when the control member 20 performs the switching operation, the spring 27 does not have a deformation or pop-out failure due to the lateral thrust. Further, the utility model has the effect of stable operation. When the control member 20 is switched from the handle portion 21 to the clockwise direction, the counterclockwise rotation of the wrench body 10 can generate a reaction force of the rotating member 40, and the ring gear 43 of the rotating member 40 is clockwise. The direction of the curved teeth 31 of the ratchet member 30 is urged to press the ratchet member 30 against one side of the arcuate ratchet groove 14 The cap or the bolt produces a locking effect. When the wrench body 10 is further rotated clockwise, the rotating member 40 generates a reaction force to cause the ratchet member 30 to be fixed by the ring gear 43 of the rotating member 40, and utilizes the elasticity of the spring 27. The hollowing of the curved ratchet groove 14 on the other side causes the ratchet member 30 to be displaced obliquely toward the end of the control member 20, that is, the ratchet member 30 can be in the limited state of the first baffle 24 and the second baffle 25 The limiting block 35 can further press the spring 27 to form a separation between the rotating member 40 and the ratchet member 30, and the ratchet member 30 is again shocked by the pushing of the spring 27, thereby achieving the operation effect of the wrench body 10 idling. The effect of the one-way locking nut or bolt is continued, as shown in Fig. 8, and when the control member 20 is switched from the handle portion 21 to the counterclockwise direction, the spring 27 is caused to abut against the other abutting surface of the ratchet member 30. 352, the same effect to achieve a one-way nut to loosen the nut or bolt.

In another embodiment of the present invention, in addition, as shown in the figures of FIGS. 9, 10 and 11, the limiting block 35 is formed in a concave shape toward the control member 20 to form two symmetric abutting surfaces 351 (352). The spring 27 forming the forward and reverse steering is positioned, and an outer convex surface 353 is formed between the two abutting surfaces 351 (352). When the control member 20 performs the reversing action, the spring 27 can pass over the outer convex curved surface 353. Accelerating the sliding to the abutting surface 351 (352), that is, the reversing speed of the forward reversal can be increased by the convex arc surface 353, so that the operation control member 20 performs the reversing motion more smoothly, and the two opposite surfaces 352 (352) are both outside. A retaining wall 354 (355) is formed to further block the spring 27, thereby enhancing the limit effect on the spring 27.

With the structure of the above specific embodiment, the following benefits can be obtained: (1) the control member 20 is respectively provided with a first baffle 24 and a second baffle 25 on both sides of the limiting slot 26, and the limiting slot The 26-position is provided with a deep hole 261 for providing the insertion of one end of the spring 27, and the semi-cylindrical 23 of the control member 20 is received in the circular hole 13 of the wrench body 10, and is fitted by the ratchet member 30 to the curved ratchet. At the slot 14, the limiting block 35 of the ratchet member 30 is inserted into the limiting slot 26 of the control member 20, so that the first and second baffles 24 (25) are respectively disposed on the first slot 33 and the second slot. The position of the 34 can not only form the limit of the control member 20, but further form the covering of the spring 27 by using the first and second baffles 24 (25) and the two abutting faces 351 of the limiting block 35, so that the spring 27 can only It is used in a small space to effectively prevent the spring 27 from escaping and jamming, and to improve the smoothness of the pulling and reversing, and to have durability and flexibility; (2) the wrench body 10 is provided The circular hole 13, the arcuate ratchet groove 14 and the actuating opening 12 are disposed in the circular hole 13 and the control member 20 and the spring 27 are disposed, and then the ratchet member 30 is in contact with each other to form a control. The limit of 20 is finally fixed directly by the C-shaped fastener 42 to form a quick combination of the structure, which not only has the advantages of less components, easy manufacture and manufacture, but also has the practical effect of convenient combination; The limiting block 35 is formed in a concave shape toward the control member 20 to form two symmetrical abutting surfaces 351 (352), thereby forming a spring 27 of the forward and reverse steering, and a convex portion is formed between the two opposing surfaces 351 (352). When the control member 20 performs the reversing action, the spring 27 can accelerate to slide against the abutting surface 351 (352) when it passes over the convex arc surface 353, that is, the reversing speed of the forward reversal can be improved by the convex arc surface 353. The operation control member 20 performs the reversing action more smoothly; (4) the ratchet member 30 forms the limiting block 35 on the circular arc surface 32, and is formed on the outer sides of the two resisting surfaces 351 (352) of the limiting block 35. The retaining wall 354 (355) can further block the spring 27, thereby increasing the limit effect on the spring 27.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, while at the same time achieving industrial utilization and progress, and the present invention is not found in Any publication is also novel. When it complies with the relevant provisions of the Patent Law, it submits an application for a patent for invention according to law, and invites the examination committee of the bureau to grant a legal patent right.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of the patent.

10‧‧‧Wrench body

11‧‧‧ratchet

12‧‧‧ actuation

121‧‧‧fixed slot

13‧‧‧ round hole

14‧‧‧Arc ratchet groove

20‧‧‧Controls

21‧‧‧ handle

22‧‧‧ round board

23‧‧‧Semi-cylinder

24‧‧‧First baffle

25‧‧‧second baffle

26‧‧‧Limited slot

261‧‧‧Deep hole

27‧‧‧ Spring

30‧‧‧ ratchet parts

31‧‧‧Arc teeth

32‧‧‧Arc face

33‧‧‧First Groove

34‧‧‧Second trough

35‧‧‧Limited blocks

351 (352) ‧ ‧ 抵 面

40‧‧‧Rotating parts

41‧‧‧ Ring groove

42‧‧‧C-shaped fasteners

43‧‧‧ tooth ring

Claims (2)

A reversing ratchet wrench (2) includes: a wrench body having a ratchet portion formed at one end thereof, and an operating opening and a circular hole in the ratchet portion, and an arc communicating between the operating opening and the circular hole a ratchet groove; a control member having a handle and a circular plate formed at the end of the handle, and a half cylinder extending from one side of the circular plate, inserted through the semi-cylindrical hole in the round hole of the wrench body, The semi-cylindrical parallel plate is provided with a first baffle and a second baffle, and the first baffle and the second baffle are spaced apart from each other by a limiting slot, and the semi-cylindrical portion is opened at a position of the limiting slot. a hole, and a spring is disposed at the deep hole, so that the first baffle, the second baffle and the spring are all directed toward the arcuate ratchet groove; a ratchet member having a curved tooth formed at one end and at the other end Forming a circular arc surface, the ratchet member can be slidably disposed on the arcuate ratchet groove by a circular arc surface, and the ratchet member is concavely disposed with a first groove and a second groove on the circular arc surface, and is in the first groove a limiting block is disposed between the second groove and the limiting block is accommodated The limiting groove of the workpiece is such that the first baffle is disposed at the first groove, and the second baffle is disposed at the second groove, thereby forming a limiting effect between the control member and the ratchet member, and The limiting block is concavely opposed to one end of the spring, and the limiting block is formed in a concave shape toward the control member to form two symmetrical abutting surfaces, thereby forming a spring position of the forward and reverse steering, and an outer surface is formed between the two opposing surfaces. The convex arc surface uses a convex arc surface to increase the reversing speed of the positive reversal, and the outer sides of the two abutting surfaces are formed with a retaining wall to improve the limit effect on the spring; and a rotating member is assembled on the wrench At the actuating opening of the body, a toothed ring is formed on the outer edge of the rotating member, and the ratchet member is pushed through the spring so that the curved teeth of the ratchet member are normally engaged with the ring gear. The reversing ratchet wrench (2) according to the first aspect of the invention, wherein the wrench body defines a fixing groove at the inner edge of the operating opening, and a ring groove is recessed in the outer edge of the rotating member, and the ring groove is at the ring groove A C-shaped fastener is fitted and elastically coupled to the fixing groove of the actuating opening by the C-shaped fastener, thereby forming a combination of the wrench body and the rotating member.