TWI422467B - A wrench with a clamping device - Google Patents

Description

Wrench tool with clamping device

In particular, the present invention provides a wrench tool with a clamping device that can securely and effectively grip a working piece by using a clamping device disposed on an adjacent wall between two adjacent inner corners.

The working parts used by the general wrench tool, such as bolts or nuts or sleeve tools, are all hexagonal, and most of the corresponding wrench tools are hexagonal, due to the hexagonal wrench tool (such as When the plum wrench and the sleeve-type ratchet wrench are to be fitted to the hexagonal working piece, each corner position must correspond to the working piece, so it is inconvenient in the sleeve cooperation. In order to improve the above problems, many manufacturers have built the wrench tool into a twelve-corner shape, so that the wrench tool can fit the hexagonal working piece regardless of the odd inner angle or the even inner angle, and the joint work is increased. Convenience.

With the evolution of technology, many manufacturers have more clamping devices on the wrench tool or the working piece to avoid the arbitrarily separating the working piece from the wrench tool, and more in line with the operator's use requirements. Please refer to Figures 1 and 2, which are patents of Taiwan Patent Application No. 90224805, "Spiral for Slip-on and Screw-on Screws", which are mainly provided with an inner 12-point at one end of the wrench 10. a ring hole 11 is formed in the inner ring surface of the sleeve hole 11 and a ring-shaped groove 12 is formed in the ring groove 12, so that the wrench tool 10 is provided with an odd inner angle or When the working piece 14 of the outer hexagonal shape is evenly inserted, the working piece 14 can be clamped by the C-shaped snap ring 13; however, the design is such that the inner edge of the C-shaped snap ring 13 protrudes from the inner twelve-corner shape. In the sleeve hole 11, if the protrusion amount is too large, the head end of the working member 14 cannot be opened to open the C-shaped snap ring 13. If the amount of protrusion is too small, an effective clamping force cannot be provided, resulting in difficulty in fabrication. In addition, when the working piece 14 is engaged with the wrench tool 10, the C-shaped snap ring 13 is simultaneously abutted at six apex angles, and the C-shaped snap ring 13 is only relatively close to the C-shaped opening. In addition to the elastic deformation, other apex angles away from the C-shaped opening are not easily elastically deformed, so that the working member 14 is not easily fitted with the wrench tool 10, and the C-shaped snap ring 13 It is also difficult to firmly hold the work piece 14 when it is clamped at the top corner position of the work piece 14. Please refer to Figures 3 and 4, which are the patent application of Taiwan Patent Application No. 91210452, "Clamping Positioning Structure of Wrench", which is mainly provided with a turning head 21 at one end of the wrench 20, and the turning head 21 is opened. The accommodating space 22 is formed in a twelve-corner shape, wherein the retractable bead body 23 is mounted at a top corner position of any inner corner of the accommodating space 22, and the working piece is clamped by the bead body 23 24; Referring to FIG. 4, if the retractable bead body 23 is disposed at the top corner position of the odd inner angle of the accommodating space 22, when the outer hexagonal working member 24 is fitted to the odd inner angle of the accommodating space 22 The contact between the work piece 24 and the bead body 23 can be made. Referring to FIG. 5, if the hexagonal work piece 24 is fitted in the even inner angle of the accommodating space 22, the bead body 23 does not correspond to the work. The top corner of the piece 24 does not hold the workpiece 24, so the design does not provide full grip. Please refer to Figures 6 and 7, which are the patent application of the modified structure of the sleeve tool of Taiwan Patent Application No. 92211267, which mainly forms a perforation 32 on the hexagonal end 31 of the sleeve tool 30, and the perforation is formed in the perforation. 32 is built into a steel ball 33, and then the steel ball 33 is pushed by the C-shaped elastic piece 34; since the steel ball 33 and the C-type elastic piece 34 are mounted on the sleeve tool 30, the wrench tool 35 is fitted with an odd inner angle or an even inner angle. When the sleeve tool 30 is used, both the steel ball 33 and the C-shaped elastic piece 34 can provide a clamping function; however, the design must install the steel ball 33 and the C-shaped elastic piece 34 on each different size of the sleeve tool 30, thus causing the sleeve The tool 30 creates a problem of excessive cost.

In view of this, the inventor has been engaged in research and development and production experience of related industries for many years, and has conducted in-depth research on the problems currently faced. After long-term efforts and trials, the inventors have finally developed an easy-to-set cooperation industry. A wrench tool with a clamping device that provides a firm and effective clamping function to substantially improve the conventional drawbacks, which is the design tenet of the present invention.

A first object of the present invention is to provide a wrench tool with a clamping device, wherein the wrench tool is provided with a socket portion having an inner twelve-corner shape on an inner ring surface of one end of the wrench body, and the clamping device is attached to the sleeve. An adjoining wall between two adjacent inner corners of the joint is provided with an elastically stretchable clamp assembly, and the clamp assembly can simultaneously protrude from the sleeve faces of two adjacent inner corners, thereby forming an inner twelve-corner shape When the socket portion is fitted with the hexagonal working piece, the clamping member can be used to firmly and effectively hold the working member regardless of the odd inner angle or the even inner angle.

A second object of the present invention is to provide a wrench tool with a clamping device, wherein the clamping device is provided with an elastically stretchable clamping device on an adjacent wall between two adjacent inner corners of the socket portion, and The clamping component can protrude from the sleeve surface of two adjacent inner corners at the same time, and when the inner twelve-corner sleeve fits the outer hexagonal working piece, the clamping component is clamped on the outer side of the working component The upper part, instead of being clamped at the top corner position, can be easily fitted to the industrial part, and the clamping effect on the working piece can be effectively improved.

A third object of the present invention is to provide a wrench tool with a clamping device, which is provided with an elastically stretchable clamping device on the socket portion of the wrench tool, so that the different sizes of the wrench tool can be used. The device does not need to be provided with a separate clamping device, thereby greatly reducing the manufacturing cost of the working piece.

In order to make the present invention further understand the present invention, a preferred embodiment and a drawing will be described in detail as follows: Please refer to Figures 8 and 9, the wrench tool of the first embodiment of the present invention refers to The sleeve-type ratchet wrench tool has a wrench body 40, and a receiving portion 401 is disposed on at least one end of the wrench body 40, and a ratchet ring seat 41 disposed on the receiving portion 401 of the wrench body 40 is disposed. An outer ring ratchet 411 is disposed on the outer ring surface, and a sleeve portion 412 having an inner twelve-corner shape and an odd inner angle and an even inner angle is disposed on the inner ring surface. In the embodiment, the odd number is The inner angle refers to the inner angles of the first, third, fifth, seventh, ninth and eleventh, the even inner angle refers to the inner corners of the second, fourth, sixth, eighth, ten and twelve, one of which is disposed on the wrench body 40 and the ratchet ring The ratchet device 42 of the seat 41 is meshed with the outer ring ratchet 411 of the ratchet ring seat 41. Since the ratchet device 42 is not a technical feature of the present invention and is a prior art, it will not be described in the ratchet ring. The seat 41 is mounted on the receiving portion 401 of the wrench body 40, and is fixed by a cover 43 and a C-shaped buckle 44; A clamping device 45 is disposed on the ratchet ring seat 41. The sleeves 412 of the ratchet ring seat 41 have an abutting wall 413 between two adjacent inner corners, and have a sleeve surface 414, 415 on opposite sides of the abutting wall 413, respectively. Therefore, the clamping device 45 is provided with a blind hole 416 communicating with the adjacent inner corner sleeve surfaces 414, 415 on the adjacent wall 413, and an elastically stretchable clamping device is built in the blind hole 416. In the present embodiment, the clip assembly includes a bead 451 disposed in the blind hole 416 and an elastic body 452 and a positioning pin 453 that abuts against the outer side of the bead 451. The aperture of the end port of the blind hole 416 is It is smaller than the diameter of the bead body 451, so the bead body 451 does not come out of the blind hole 416, and the bead body 451 can simultaneously protrude from the sleeve faces 414, 415 of the two adjacent inner corners.

Referring to FIG. 10, when the outer hexagonal working member 50 (such as a bolt or a nut or a sleeve tool) fits over an odd inner angle of the twelve-corner sleeve portion 412 in the ratchet ring seat 41, One of the outer side surfaces 51 of the member 50 corresponds to the sleeve surface 414. Therefore, the portion of the beads 451 protruding from the side of the sleeve surface 414 can be clamped to the workpiece 50 by the elastic abutment of the elastic body 452. The outer side 51, in turn, provides easy clamping and provides a secure and effective grip.

Referring to FIG. 11, when the outer hexagonal working member 50 is fitted into the even inner angle of the twelve-corner socket portion 412 in the ratchet ring seat 41, since one outer side surface 51 of the working member 50 corresponds to The socket surface 415, so that the portion of the bead body 451 protruding from the side of the sleeve surface 415 can be clamped to the outer side surface 51 of the workpiece 50 by the elastic abutment of the elastic body 452, and the ratchet ring seat 41 can be With the odd inner angle or the even inner angle sleeve, the cooperative member 50 can achieve easy clamping and stable and effective clamping.

Referring to Figures 12 and 13, a wrench tool according to a second embodiment of the present invention refers to a wrench tool having a wrench body 60, and at least one end of the wrench body 60 is provided with an inner twelve corner. In the present embodiment, the odd inner angle refers to the first, third, fifth, seventh, ninth, and eleven inner angles, and the even inner angle refers to the first portion. Two, four, six, eight, ten, twelve inner corners; wherein the sleeve portion 61 is provided with a clamping device 62, because the adjacent inner corners of the socket portion 61 have an abutting wall 611, and adjacent The two sides of the wall 611 respectively have a sleeve surface 612, 613. Therefore, the clamping device 62 is provided with a blind hole 614 which is adjacent to the two adjacent inner corner sleeve surfaces 612, 613. The hole 614 is embedded with an elastically stretchable clamp assembly. In the embodiment, the clamp assembly includes a bead 621 disposed in the blind hole 614 and an elastic body 622 and a positioning pin abutting against the outer side of the bead 621. 623, since the aperture of the end port of the blind hole 614 is smaller than the diameter of the bead 621, the bead 621 does not come off the blind hole 614. , And the beads 621 may protrude out simultaneously on two adjacent faces 612, 613 sleeved inside corners.

Referring to FIG. 14, when the outer hexagonal working member 70 (such as a bolt or a nut or a sleeve tool) is fitted over the odd inner angle of the inner dorsal ferrule 61, one of the working members 70 is The outer side surface 71 corresponds to the sleeve surface 612. Therefore, the portion of the bead body 621 protruding from the side of the sleeve surface 612 can be clamped to the outer side surface 71 of the workpiece 70 by the elastic abutment of the elastic body 622. In turn, it is easy to fit and provides a firm and effective grip.

Referring to FIG. 15, when the outer hexagonal working member 70 is fitted to the even inner angle of the inner dorsal sleeve portion 61, since one of the outer side surfaces 71 of the working member 70 corresponds to the sleeve surface 613, Therefore, the portion of the bead 621 protruding from the side of the sleeve surface 613 can be clamped to the outer side surface 71 of the workpiece 70 by the elastic abutment of the elastic body 622, and the socket portion 61 can be at an odd inner angle or The even inner corner sleeve cooperative member 70 can achieve an easy to fit and a stable and effective clamping function.

Accordingly, the present invention is a practical and progressive design, but it has not been disclosed that the same products and publications are disclosed, thereby permitting the invention patent application requirements, and applying in accordance with the law.

Conventional part:

10. . . wrench

11. . . Set of holes

12. . . Ring groove

13. . . C-type snap ring

14. . . Work piece

20. . . wrench

twenty one. . . Turn the head

twenty two. . . Housing space

twenty three. . . Bead

twenty four. . . Work piece

30. . . Sleeve tool

31. . . Hexagon end

32. . . perforation

33. . . Steel ball

34. . . C-type shrapnel

Part of the invention

40. . . Wrench body

401. . . Housing

41. . . Ratchet ring seat

411. . . Outer ring ratchet

412. . . Socket

413. . . Adjacent wall

414. . . Socket surface

415. . . Socket surface

416. . . Blind hole

42. . . Ratchet device

43. . . Cover

44. . . C buckle

45. . . Clamping device

451. . . Bead

452. . . Elastomer

453. . . Positioning bolt

50. . . Work piece

51. . . Outer side

60. . . Wrench body

61. . . Socket

611. . . Adjacent wall

612. . . Socket surface

613. . . Socket surface

614. . . Blind hole

62. . . Clamping device

621. . . Bead

622. . . Elastomer

623. . . Positioning bolt

70. . . Work piece

71. . . Outer side

Figure 1: Schematic diagram of the appearance of Taiwan Patent Application No. 90224805.

Figure 2: Schematic diagram of the holding work piece of the patent application No. 90224805 of Taiwan Patent Application.

Figure 3: Appearance of the patent application No. 91210452 of Taiwan Patent Application.

Fig. 4 is a schematic view showing a holding work piece of the patent application No. 91210452 of Taiwan Patent Application.

Figure 5: Schematic diagram of the inability to hold the workpiece in the patent application No. 91210452 of Taiwan Patent Application.

Fig. 6 is a schematic view showing the appearance of the patent application No. 92211267 of Taiwan Patent Application.

Figure 7: Schematic diagram of the patent application of Taiwan Patent Application No. 92211267 fits over a wrench tool.

Figure 8 is an exploded view of the first embodiment of the present invention.

Figure 9 is a schematic view showing the appearance of the first embodiment of the present invention.

Fig. 10 is a schematic view (1) of a holding work piece according to a first embodiment of the present invention.

Figure 11 is a schematic view (2) of a clamping work piece according to a first embodiment of the present invention.

Figure 12 is an exploded view of the second embodiment of the present invention.

Figure 13 is a schematic view showing the appearance of a second embodiment of the present invention.

Figure 14 is a schematic view (1) of a clamping work piece according to a second embodiment of the present invention.

Figure 15 is a schematic view (2) of a holding work piece according to a second embodiment of the present invention.

40. . . Wrench body

41. . . Ratchet ring seat

412. . . Socket

414. . . Socket surface

415. . . Socket surface

451. . . Bead

452. . . Elastomer

453. . . Positioning bolt

50. . . Work piece

51. . . Outer side

Claims (10)

A wrench tool with a clamping device includes: a wrench body: a receiving portion is formed on at least one end; a ratchet ring seat is mounted in a receiving portion of the wrench body, and the ratchet ring is seated on the outer ring surface An outer ring ratchet is provided, and a sleeve portion having an inner twelve-corner shape and an odd inner angle and an even inner angle is formed on the inner ring surface, and the adjacent inner corners of the socket portion have an adjacent wall, and Each side of the adjacent wall has a socket surface; the ratchet device is disposed between the wrench body and the ratchet ring seat, and is meshed with the ratchet ring of the ratchet ring seat; the clamping device is attached to the two adjacent sides of the ratchet ring seat The abutting wall between the inner corners is provided with an elastically stretchable clamp assembly, and the clamp assembly simultaneously protrudes from the sleeve faces of two adjacent inner corners. A wrench tool with a clamping device according to the first aspect of the patent application, wherein the socket portion of the ratchet ring seat has an odd inner angle of the first, third, fifth, seventh, ninth, and eleventh angles. The even inner angle refers to the second, fourth, sixth, eighth, ten, and twelve inner angles. The wrench tool with a clamping device according to the first aspect of the invention, wherein the ratchet ring seat is fixedly mounted in the receiving portion of the wrench body by a cover and a C-shaped buckle. The wrench tool with a clamping device according to the first aspect of the patent application, wherein the clamping device is connected to the adjacent wall of the sleeve portion of the ratchet ring seat and is connected to the two adjacent inner corner sleeve surfaces. A blind hole is formed, and an elastically stretchable clamp assembly is built in the blind hole. The wrench tool with a clamping device according to the fourth aspect of the invention, wherein the clamping component comprises a bead disposed in the blind hole, and an elastic body and a positioning pin abutting against the outer side of the bead. A wrench tool with a clamping device according to the invention of claim 5, wherein the end port of the blind hole has a smaller aperture than the diameter of the bead. A wrench tool with a clamping device, comprising: a wrench body: a socket portion having an inner twelve-corner shape and an odd inner angle and an even inner angle at at least one end, and between the two adjacent inner corners of the socket portion Having an abutting wall and a sleeve surface on each side of the abutting wall; a clamping device: an elastically stretchable clamping device is disposed on an adjacent wall between two adjacent inner corners of the wrench body, and the clamping component is simultaneously Projecting on the sleeve faces of two adjacent inner corners. The wrench tool with a clamping device according to the seventh aspect of the patent application, wherein the odd inner angle of the socket portion of the wrench body refers to the inner angles of the first, third, fifth, seventh, ninth and eleventh, The even inner angle refers to the second, fourth, sixth, eighth, ten, and twelve inner angles. A wrench tool with a clamping device according to the seventh aspect of the invention, wherein the clamping device is attached to the adjacent wall of the socket portion of the wrench body and is blinded by two adjacent inner corner sleeve faces. a hole, and an elastically stretchable clamp assembly is built into the blind hole. The wrench tool with a clamping device according to claim 9, wherein the clamping component comprises a bead disposed in the blind hole, and an elastic body and a positioning bolt abutting against the outer side of the bead. And the aperture of the end port of the blind hole is smaller than the diameter of the bead.