TWI645942B - Reversing wrench structure - Google Patents

Abstract

A reversing wrench structure comprising: a wrench body, a control member, a tooth member and a ratchet member, wherein the gear member is connected to the linkage shaft through a shaft bolt through the concave arc groove, and the linkage sleeve is An elastic member is arranged and assembled into the through hole of the shaft column, so that when the control member is switched, the gear member can be connected through the linkage shaft, and a linkage fulcrum is formed through the shaft bolt to raise the tooth member. The smoothness of the displacement actuation allows the elastic member to be telescoped into the through hole to avoid deformation or pop-out failure, thereby improving the durability of the structure and increasing the structural engagement strength.

Description

Reversing wrench structure

The invention relates to a wrench, in particular to a reversing wrench structure.

According to the conventional reversing wrench structure, as shown in FIG. 9, 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.

It is not difficult to find out that the above-mentioned conventional structure has 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 the abutment is provided. One end of the 83 is pushed by the spring 82, and the other end of the sleeve 83 is slid against the curved surface 71 of the ratchet member 70. When the ratchet member 70 is pulled by the wrench 50 to generate vibration or is switched at the control block 80, 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 rubbed on the control block 80. The jack 81 allows the abutment sleeve 83 and the spring 82 to be easily ejected or deformed by the insertion hole 81, and resistance is formed to lower the operational stability thereof, and there is a problem that the structural strength is insufficient.

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 abutment 83 have a small volume, which is easy to fall or be lost during the assembly process, and further increases the difficulty of assembly, making it difficult to assemble and the lack of excess components.

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 wrench structure for the above-mentioned shortcomings existing in the prior art.

A reversing wrench structure, comprising: a wrench body, a control member, a tooth member and a ratchet member, the wrench body having a first working portion and a second working portion, the first working portion is provided with a loading a hole and a control hole, and an arc is formed between the mounting hole and the control hole The shank has a shank portion and a shaft column, the shaft column is provided with a stepped through hole in a radial direction, and the shaft column is assembled in the control hole, and the shank is configured The arcuate tooth groove is disposed at one end thereof to form a curved tooth portion facing the mounting hole, and the other end forms a concave arc groove facing the control hole, and the concave groove is through a shaft bolt Connecting a linkage shaft, the linkage shaft is further provided with an elastic member, and the elastic member is disposed in the insertion hole along the linkage shaft, and the ratchet member is received in the installation hole of the first working portion. The outer edge of the ratchet member forms a ring tooth portion and is engaged with the arcuate tooth portion of the tooth member through the ring tooth portion, and the inner diameter forms a tool hole, and the structure is configured to form a commutation Wrench structure.

Preferably, the front end of the linkage shaft forms a round head, and the round head is provided with a continuous perforation for the passage of the shaft bolt.

Preferably, the inner edge of the mounting hole of the first working portion is provided with a fixing ring groove, and the outer edge of the ratchet member is recessed with a limiting ring groove, and the limiting ring groove is embedded with a C-shaped fastener, and then The C-shaped fastener is coupled to the retaining ring groove, thereby confining the ratchet member within the mounting hole.

According to the effect of the prior art: (1) the tooth member is connected to a linkage shaft by a concave arc groove through a shaft bolt, and then an elastic member is sleeved by the linkage shaft and assembled into the shaft member. In the hole, when the control member is switched, the gear member can be connected through the linkage shaft, and a pivotal fulcrum is formed through the shaft bolt to improve the smoothness of the displacement of the tooth member, and the elastic member can be flexibly stretched to the wearer. Set the hole to avoid deformation or pop-up failure, and thus have the effect of stable operation and increased structural engagement strength, so as to improve its durability.

(2) The tooth member is sheathed by an elastic member via a linkage shaft, and the elastic member is directly restricted by the linkage shaft in the insertion hole when the combination is performed, thereby completing the connection state of the tooth member and the control member , effectively simplifying the assembly steps of the wrench body while reducing structural assembly time and people The cost of power contributes to the improvement of economic efficiency.

〔this invention〕

10‧‧‧Wrench body

11‧‧‧First Work Department

12‧‧‧ Second Work Department

13‧‧‧Installation holes

131‧‧‧Fixed ring groove

14‧‧‧Control hole

141‧‧‧Limited slot

142‧‧‧ openings

15‧‧‧ Curved cogging

20‧‧‧Controls

21‧‧‧ handle

22‧‧‧ shaft column

23‧‧‧With holes

30‧‧‧掣tooth

31‧‧‧Shaped teeth

32‧‧‧ concave arc groove

321‧‧‧ shaft bolt

33‧‧‧ linkage axis

331‧‧‧ round head

332‧‧‧through holes

34‧‧‧Flexible parts

40‧‧‧ ratchet parts

41‧‧‧ Ring tooth

42‧‧‧Tool hole

43‧‧‧ Limit ring groove

44‧‧‧C-shaped fasteners

[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‧‧‧

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the invention.

Figure 3 is a plan view of the present invention.

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

Fig. 5 is a schematic view showing the idling of the clockwise rotation of the present invention.

Fig. 6 is a schematic view showing the counterclockwise rotation and interlocking of the ratchet member of the present invention.

Fig. 7 is a schematic view showing the adjustment control member of the present invention.

Fig. 8 is a schematic view showing the clockwise rotation of the invention and the linkage of the ratchet member.

Figure 9: A schematic diagram of the prior art.

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 [Simplified Description of the Drawings] for details: First, please refer to Figures 1 and 2 below. A reversing wrench structure includes a wrench body 10 , a control member 20 , a tooth member 30 , and a ratchet member 40 . The wrench body 10 has a first working portion 11 and a second working portion 12 . The first working portion 11 is provided with a mounting hole 13 and a control hole 14 . The mounting hole 13 and the control hole 14 are connected with a curved tooth groove 15 , and a fixing ring groove is formed on the inner edge of the mounting hole 13 . The upper end of the control hole 14 defines a limiting slot 141. The limiting slot 141 has an opening 142. The control member 20 has a handle portion 21 and a shaft post 22, and the shaft post 22 is radially arranged in a stepped manner. The hole 23 is bored, and the shaft column 22 is assembled in the control hole 14, and the tooth member 30 is accommodated in the hole The curved bevel groove 15 has an arcuate tooth portion 31 formed at one end thereof facing the mounting hole 13 and a concave arc groove 32 formed at the other end facing the control hole 14 . A linkage shaft 33 is connected through a shaft bolt 321 . The front end of the linkage shaft 33 defines a round head portion 331. The round head portion 331 is provided with a continuous through hole 332 for the connection of the shaft bolt 321 , and the linkage shaft 33 is more elastic. And the elastic member 34 is disposed in the through hole 23 along the connecting shaft 33. The ratchet member 40 is received in the mounting hole 13 of the first working portion 11, the ratchet member 40. The outer edge forms a ring tooth portion 41, and is engaged with the arcuate tooth portion 31 of the tooth member 30 through the ring tooth portion 41, and the inner diameter forms a tool hole 42, and the outer edge of the ratchet member 40 is recessed. The limit ring groove 43 is embedded with a C-shaped fastener 44.

For the structure of the structure, as shown in the figures 2, 3 and 4, the wrench body 10 is respectively mounted with the control hole 14, the curved tooth groove 15 and the mounting hole 13 to mount the control member 20 and the tooth member. And the ratchet member 40, wherein the control member 20 is disposed in the control hole 14 by the shaft post 22, and the handle portion 21 is restricted to the limiting slot 141 and extends out of the opening 142. The concave arc groove 32 is connected to a linkage shaft 33 by a shaft bolt 321 . The linkage shaft 33 is sleeved with an elastic member 34, and the linkage shaft 33 faces the control hole 14 to pass the gear member 30 through the installation hole 13 . The elastic shaft 34 is inserted into the through hole 23 of the shaft member 22 and the elastic shaft 34 is passed through the elastic member 34 to reach the linkage shaft 33. The elastic toothed portion 31 faces the mounting hole 13 and finally the ratchet member 40 is assembled into the mounting hole 13 and is clamped to the limiting chute by a C-shaped fastener 44. 43 and the fixing ring groove 131, thereby restraining the ratchet member 40 in the mounting hole 13 to complete a reversing wrench structure.

The state in which the structure is actually used, as shown in FIGS. 5 and 6 , the wrench body 10 is engaged with the screw lock unit by the tool hole 42 of the ratchet member 40 and is actuated by the wrench body 10 to reach the screw lock unit. Locking and loosening state, first cutting the tooth member 30 and the same through the control member 20 The card between the ratchet members 40 abuts the swaying direction, and when the licking member 30 is rotated by the control member 20 to abut the clockwise direction of the curved spur groove 15, the coupling shaft 33 and the elastic member 34 are simultaneously transmitted. When the wrench body 10 is rotated clockwise, when the wrench body 10 is driven in the same direction as the elastic member 34, the ratchet member 40 can be along the elastic member 34. The direction of the tooth member 30 is pushed back, so that the arc-shaped tooth portion 31 of the tooth member 30 can not effectively engage the ring tooth portion 41 of the ratchet member 40 to form an idling state. Otherwise, the wrench body 10 is rotated counterclockwise. Please refer to FIG. 6 at the same time, because the interlocking shaft 33 of the toothed member 30 is urged by the elastic member 34 in a direction opposite to the operating direction of the wrench body 10, so that the toothed member 30 cannot be pushed back. The arc-shaped tooth portion 31 does engage the ring tooth portion 41 of the ratchet member 40, thereby driving the ratchet member 40 to rotate and achieving the twisting action of the screw lock unit, thereby forming a driving state of the wrench body 10 counterclockwise one-way twisting.

Next, when the control member 20 is pulled in the other direction, as shown in FIGS. 7 and 8, the tooth member 30 is rotated by the control member 20 to abut against the curved tooth groove 15 . In the counterclockwise direction, the interlocking shaft 33 and the elastic member 34 are pushed against the tooth member 30 in the counterclockwise direction. When the wrench body 10 rotates counterclockwise, the action direction of the wrench body 10 and the elastic member 34 are pushed against the direction. Similarly, the ratchet member 40 can be pushed back along the direction of the elastic member 34, so that the arc-shaped tooth portion 31 of the tooth member 30 cannot effectively engage the ring tooth portion 41 of the ratchet member 40. The idling state is formed. Conversely, when the wrench body 10 is rotated clockwise, the interlocking shaft 33 of the dent portion 30 is urged by the elastic member 34 in a direction opposite to the operating direction of the wrench body 10, so that the squeegee member 30 cannot be When the arc-shaped tooth portion 31 is pushed back, the ring-shaped tooth portion 41 of the ratchet member 40 is surely engaged, thereby driving the ratchet member 40 to rotate and reaching the twisting action of the screw-locking unit, thereby forming the wrench body 10 to rotate clockwise and unidirectionally. Drive status.

By the structure of the above specific embodiment, the following benefits can be obtained: (1) the tooth decay The member 30 is connected to a linkage shaft 33 through a pivot pin 32 through a pivot pin 321 , and an elastic member 34 is sleeved by the linkage shaft 33 and assembled into the through hole 23 of the shaft 22 . When the control member 20 is switched, the gear member 30 can be surely coupled through the linkage shaft 33, and a pivotal fulcrum is formed through the shaft bolt 321 to improve the smoothness of the displacement of the jaw member 30, and the elastic member 34 can be flexibly stretched. The hole 23 is disposed in the hole 23 to avoid deformation or pop-up failure, thereby having the effect of stable operation and increased structural engagement strength, so as to improve durability; (2) the tooth member 30 is threaded through the linkage shaft 33. The elastic member 34 is directly restrained by the interlocking shaft 33 to the elastic member 34 in the through hole 23 to complete the connection state of the tooth member 30 and the control member 20, thereby simplifying the assembly of the wrench body 10. The steps, while reducing the structural assembly time and labor costs, contribute to the improvement of economic efficiency.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

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.

Claims (3)

A reversing wrench structure includes: a wrench body having a first working portion and a second working portion, wherein the first working portion is provided with a mounting hole and a control hole, and the mounting hole and the mounting hole The control hole is provided with an arc-shaped cogging groove; a control member having a handle portion and a shaft column, wherein the shaft column is provided with a stepped through hole in a radial direction, and the shaft column is assembled on the shaft column In the control hole, a toothed member is disposed in the curved tooth groove, and one end thereof forms a curved tooth portion facing the mounting hole, and the other end faces the control hole to form a concave portion. An arc groove is connected to a linkage shaft through a shaft bolt, the linkage shaft is further provided with an elastic member, and the elastic member is disposed in the insertion hole along the linkage shaft; a ratchet member is The inner edge of the ratchet member is formed in a mounting hole, and the outer edge of the ratchet member forms a ring tooth portion, and the ring tooth portion is engaged with the curved tooth portion of the tooth member, and the inner diameter forms a tool. hole. The reversing wrench structure according to the first aspect of the invention, wherein the front end of the linking shaft forms a round head, and the round head is provided with a perforation for the passage of the shaft bolt. The reversing wrench structure according to the first aspect of the invention, wherein the inner edge of the mounting hole of the first working portion is provided with a fixing ring groove, and the outer edge of the ratchet member is recessed with a limiting ring groove, the limit A ring-shaped fastener is embedded in the ring groove, and the C-shaped fastener is coupled into the fixing ring groove, thereby restraining the ratchet member in the mounting hole.