TWM584733U - Direction detent structure of wrench - Google Patents

Abstract

The utility model relates to a wrench. The directional latching structure includes a latching member and a release button. Usually, a resisting portion of the release button contacts the latching member, and the latching member is partially exposed from the shell portion. When necessary, the release button drives the resisting portion away from the original position, which facilitates the installation of an adapter on the wrench. When the release button is returned to its original position, the resisting portion touches an inclined surface of the latching member, which drives the latching member to produce a latching effect on the adapter, and must not easily leave the wrench to achieve rapid and reliable assembly or disassembly.

Description

Wrench direction latch structure

This creation relates to the transfer technology of wrenches, in particular to a direction-locking structure of a wrench.

Various types of wrenches are known, such as gear wrenches. The gear wrench has a gear, a square post standing on the gear is used to insert a sleeve, and the sleeve is used to perform a locking or loosening operation of a screw joint.

Usually, the square pillar is integrated with the gear. Some square pillars are separated, independent at the end of a post, and the other end of the post is combined with a gear to be detachable to complete the transfer operation.

In view of this, this creation provides a new transfer technology for wrenches. The main purpose is to use a directional latch structure that can not only manipulate the direction of the gear locking or loosening the screw joint, but also allow the gear to combine with the required adapter To achieve rapid and reliable assembly or disassembly.

Due to the above-mentioned purpose, the wrench of this creation is a directional latching structure installed in a shell. The shell part has a through hole, a lateral groove, a directional button chamber and a release hole. The through hole passes through the lateral groove to the directional button chamber, and the release hole communicates with the directional button chamber.

The directional latch structure includes: a release button protruding from a resisting portion, the release button retracting into the directional button chamber or exposing the shell portion through the release hole, the resisting portion preventing the release button from leaving the shell portion; a directional button, which It is arranged in the direction button chamber and surrounds the outer circumferential surface of the release button. The direction button drives the release button to rotate in the same direction through the resisting portion, but does not affect the release hole of the release button in and out of the shell portion; and A latching member is inserted into the lateral groove of the shell. The latching member has a force end and a force applying end. The force receiving end is pushed by the resisting portion to drive the latch member to displace in the transverse groove, so that the force end exposes the shell. Part of the through hole.

In addition, the shell also has a hollow gear, and the gear is provided with an adapter. The adapter includes: an insertion portion; an assembly inclined surface formed on an edge of the end surface of the insertion portion; a ring groove sinking around the insertion portion; and a removal inclined surface formed on one side of the ring groove.

When the inserting part is coupled to the gear, the assembly slope touches the force application end, and the latching member is retracted into the shell part until the latching part is reset and enters the ring groove, preventing the adapter part from leaving the shell part to complete the transfer operation.

When the inserting part is withdrawn from the gear, the removing inclined surface pushes away the force applying end to release the latching relationship between the latching member and the ring groove.

In this way, the wrench of this creation has a directional latch structure, which is composed of a directional button, a release button and a latch, which can not only manipulate the direction of the gear locking or loosening the screw, but also allow the gear to combine Connecting parts, to achieve quick and reliable assembly or disassembly.

In order to make the above-mentioned objects, features and advantages of this creation more comprehensible, one or more preferred embodiments are described in detail below with the accompanying drawings.

10‧‧‧ wrench

11‧‧‧ underside

12‧‧‧ main body

13‧‧‧ groove

14‧‧‧Operation Department

16‧‧‧Shell

161‧‧‧Gear room

162, 24‧‧‧ restricted holes

163‧‧‧through hole

164‧‧‧Tooth block chamber

165‧‧‧ horizontal groove

166‧‧‧ convex

167‧‧‧ Direction Button Room

167A‧‧‧Angle Slot

167B‧‧‧Expansion groove

167C‧‧‧Release hole

18‧‧‧ Top

20‧‧‧ Closure

22‧‧‧ Fasteners

30‧‧‧Gear

32‧‧‧tooth

34‧‧‧Tooth Valley

36‧‧‧Tooth Tip

38‧‧‧ Shaft

40‧‧‧tooth block

42‧‧‧occlusal surface

44, 61‧‧‧ concave surface

50‧‧‧Rotating parts

51‧‧‧columns

52‧‧‧Designated Department

522‧‧‧ telescopic structure

54, 62‧‧‧ convex surface

56‧‧‧ flange

58‧‧‧ Follower

60‧‧‧ Direction Button

63‧‧‧Active Department

64‧‧‧accommodation department

65‧‧‧ extension

70‧‧‧ release button

72‧‧‧ spring slot

74‧‧‧ compression spring

76‧‧‧boycott

78‧‧‧ outer circumferential surface

80‧‧‧ detent

82‧‧‧force end

84‧‧‧force end

86‧‧‧Guide

88‧‧‧ bevel

90‧‧‧ adapter

92‧‧‧Socket

94‧‧‧Angle Slot

96‧‧‧ Insertion

96A‧‧‧Assembled bevel

98‧‧‧ ring groove

98A‧‧‧Unloading bevel

A1‧‧‧ Force direction

A2‧‧‧Assembly direction

A3‧‧‧moving direction

A4‧‧‧Unloading direction

FIG. 1 is a perspective view of a preferred embodiment of the creative wrench.

Fig. 2 is a perspective view of a part of a wrench.

Fig. 3 is a perspective view of the case with the shell portion cut away.

FIG. 4 is an exploded perspective view of the directional latch structure.

Figure 5 is a sectional view before the wrench is combined with the adapter.

FIG. 6 is a configuration diagram showing a direction latch structure of a perspective wrench.

FIG. 7 is a plan view of a steering gear in which a wrench is cut to show a direction locking structure.

FIG. 8 is an operation diagram of the assembly assembly of the directional latch structure.

Fig. 9 is a sectional view of a combination of a wrench and an adapter.

FIG. 10 is an operation diagram of removing the adapter by the directional latch structure.

FIG. 1 illustrates a preferred embodiment, illustrating that the wrench 10 has an operation portion 14 and a shell portion 16, and the two are connected together by a main body 12. The operation portion 14 is under a force, and the shell portion 16 is manipulated to rotate by the main body 12 to perform a locking or loosening operation of a screw joint (such as a screw or a nut).

Have a certain length. The middle paragraph defining the wrench 10 is connected by the main body 12. The operation portion 14 is provided at one end of the wrench 10 and rotates the shell portion 16 at the other end of the main body 12. The shell portion 16's.

Figure 2 illustrates the internal structure of the wrench 10, depicting a group of fasteners 22 passing through a closure member 20 and locked into the shell portion 16. Therefore, the shell portion 16 is hollow, and is used for mounting a set of gears 30, a tooth block 40, and a directional latch structure.

FIG. 3 illustrates a structure in which the shell portion 16 is cut along the thickness direction, FIG. 6 illustrates the outline of the shell portion 16, and FIG. 7 depicts a structure in which the wrench 10 is cut in the width direction, and the specific structure of the shell portion 16 is described in detail.

First, the shell portion 16 is flat, and a through hole 163, a restricting hole 162, a gear chamber 161, and a groove 13 are sequentially formed from the top surface 18 to the bottom surface 11 in this order. The closing member 20 is inserted into the groove 13 so that the bottom surface 11 of the shell portion 16 is kept flush (see FIG. 5). The through hole 163 passes through the restriction hole 162 to the gear chamber 161 to keep it open. The three holes are coaxial holes, and the diameter gradually expands. The gear chamber 161 has the largest diameter, but is smaller than the width of the groove 13.

Secondly, there is a release hole 167C on the top surface of the shell portion 16. The release hole 167C is next to the through hole 163, and a direction button chamber 167 and an enlarged diameter groove 167B are sequentially formed along the vertical direction of the length of the wrench 10. Slot 13. A corner groove 167A sinks into the top surface 18 of the shell portion 16 and connects the direction button chamber 167 And the release hole 167C, the angle groove 167A and the enlarged diameter groove 167B are at different ends of the direction button chamber 167.

In addition, the housing portion 16 further has a tooth block chamber 164. The gear block chamber 164 has a wide mouth end connected to the gear chamber 164 and a narrow mouth end connected to the direction button chamber 167. The tooth block chamber 164 reaches a lateral groove 165 through the shell 16 to form a set of convex portions 166. One end of the horizontal groove 165 is connected to the through hole 163, and the other end is connected to the direction button chamber 167.

Next, the specific structures of the set of gears 30 and a tooth block 40 will be described with reference to Figs. Among them, the two shaft portions 38 stand on both sides of the gear 30, one of the two shaft portions 38 is inserted into the restriction hole 162 of the shell portion 16, and the other shaft portion 38 is inserted into a restriction hole 24 of the closure member 20 to support the gear 30 in the gear. The chamber 161 is free to rotate with respect to the case portion 16. A set of continuous teeth 32 protrudes along the circumferential direction from the outside of the gear 30. The inside of the gear 30 is a driving space penetrating the end surface of the two-shaft portion 38. The driving space is composed of a plurality of teeth connected in a circumferential direction, and a concave-convex shape is formed by the tooth valley 34 to the tooth crest 36.

It is not difficult to understand from FIG. 7 that each side of the tooth block 40 has a concave curved surface 44 and an engaging surface 42. When the tooth block 40 is inserted into the tooth block chamber 164 of the shell portion 16, the engaging surface 42 faces the gear chamber 161, and the concave curved surface 44 faces the direction button chamber 167.

The directional latching structure shown in FIG. 4 can subdivide a rotating member 50, a directional button 60, a release button 70, a compression spring 74 and a latching member 80.

The rotating member 50 is similar to a corner block, and a front end of the corner block is defined as a designated portion 52. The designated portion 52 is provided with an elastic telescopic structure 522. The rear end of the corner block is a convex curved surface 54, and a flange 56 extends outward from the bottom edge of the convex curved surface 54. The rotating member 50 bulges a post 51 which is round and is located between the designated portion 52 and the driven portion 58. Preferably, the post 51 is at a central position of the rotating member 50. The rotating member 50 further has a driven portion 58. The driven portion 58 and the flange 56 are at different ends of the convex curved surface 54.

As shown in FIGS. 5 and 7, when the rotating member 50 is inserted into the direction button chamber 167 of the shell portion 16, The convex curved surface 54 conforms to the curvature of the directional button chamber 167, so that the rotating member 50 is rotated relative to the shell portion 16, and the flange 56 is moved back and forth in the enlarged diameter groove 167B. The flange 56 is hindered by the wall of the closure member 20 and the enlarged diameter groove 167B, and the rotation member 50 is restricted from moving linearly toward the release hole 167C or leaving the shell portion 16. At this moment, the designated portion 52 enters the tooth block chamber 164, guides the telescopic structure 522 against the concave curved surface 44, and pushes the tooth block 40 unilaterally close to the gear 30, so that the same side of the occlusal surface 42 will engage any of the teeth 32, and determines that the gear 30 is relatively The shell 16 operates in one-way idling and reverse synchronization.

For example, when the wrench 10 is rotated in the counterclockwise direction in FIG. 7, the wall of the housing portion 16 that surrounds the tooth block chamber 164 forces the tooth block 40 to bite the gear 30 firmly. In this way, the force of the wrench 10 is transmitted to the gear 30 via the shell portion 16 and the tooth block 40, and the gear portion 30 is driven to rotate in the same direction by the shell portion 16.

Conversely, when the wrench 10 is turned clockwise according to FIG. 7, even if the occlusal surface 42 and the teeth 32 maintain a meshing relationship, the wall of the housing 16 formed by the tooth block chamber 164 will pass over the tooth block 40, and the wrench 10 cannot be moved. The acting force is transmitted to the gear 30, so that the case portion 16 is idling around the gear 30.

Looking back at FIG. 4, the directional button 60 is an arc-shaped body having a concave curved surface 61 and a convex curved surface 62. The directional button 60 forms an extension portion 65 with a certain length from the convex curved surface 62 in the radial direction, and extends two active portions 63 along the axial center direction. A fan-shaped accommodating portion 64 exists between the two active portions 63.

As shown in FIG. 4 in conjunction with FIGS. 1, 5 and 6, the direction button 60 is in the direction button chamber 167 of the shell portion 16, and the receiving portion 58 is received by the accommodation portion 64, so that the two driving portions 63 are on both sides of the driving portion 58. . After being combined, the convex surfaces 54 and 62 of the direction button 60 and the rotating member 50 conform to the curvature of the wall surface of the direction button chamber 167. Because the shell portion 16 covers the two ends of the directional button 60, the directional button 60 will not easily leave the directional button chamber 167, and can support the extension portion 65 exposed in the corner groove 167A of the shell portion 16. In the angular range limited by the angle groove 167A, the extension 65 is swung from the original position (see FIG. 6) to the new position. The direction button 60 drives the rotating member 50 to rotate in the same direction, and changes the gear 30 to idle or synchronize with the shell 16 Direction.

In addition, FIG. 4 shows that the bottom surface of the release button 70 is sunk into a spring groove 72 and is The peripheral surface 78 projects a resisting portion 76. As shown in FIGS. 5 and 6, when the release button 70 is inserted into the direction button chamber 167 of the shell portion 16, the compression spring 74 is installed between the spring groove 72 and the column 51. One end of the compression spring 74 is against the rotating member 50, and the other end pushes the release. The button 70 follows the concave curved surface 61 of the direction button 60 to expose the release hole 167C of the shell portion 16 until the resisting portion 76 is blocked by the shell portion 16 to prevent the release button 70 from leaving the shell portion 16 through the release hole 167C. At the same time, the direction button 60 contacts the resisting portion 76 and surrounds the outer circumferential surface 78 of the release button 70, so the direction button 60 actively rotates with the release button 70 in the same direction.

In FIGS. 4 to 6, the latching member 80 is a flat plate, and the flat plate is inserted into the lateral groove 165 and can slide relative to the shell portion 16. The end of the latching member 80 facing the release button 70 is defined as a force end 82, and the other end is regarded as a force applying end 84. The force end 82 contacts the resisting portion 76 and determines that the latching member 80 (including the force applying end 84) is exposed on The minimum volume of the through hole 163. The latching member 80 has a guiding portion 86 standing on one side, and the guiding portion 86 falls between the two convex portions 166. It touches the shaft portion 38 to determine the latching member 80 (including the force applying end 84). ) The maximum volume exposed in the through hole 163. In addition, an inclined surface 88 connects the receiving end 82 to the guide portion 86.

In FIG. 5, the wrench 10 is ready to be combined with an adapter 90. The adapter 90 is provided with a set of connecting portions 92, which have a corner groove 94 like a sleeve, such as a hexagonal groove. The adapter 90 also has an insertion portion 96. The insertion portion 96 is a hollow hexagonal post, and a ring groove 98 is formed around the hexagonal post. In some embodiments, the insertion portion may be solid. Of course, there is no socket part, and it is within the scope allowed in this case that the adaptor is implemented on the adapter.

As shown in FIG. 8, an edge of the end surface of the insertion portion 96 will form an assembly slope 96A. One of the two sides of the ring groove 98 is a removal bevel 98A, and the removal bevel 98A has an inclined direction different from that of the assembly bevel 96A.

Wherein, the release button 70 moves along a force-receiving direction A1, and the resisting portion 76 is separated from the force-receiving end 82. At the same time, the compression spring 74 is pressed and deformed by the release button 70 and the rotating member 50. The insertion portion 96 enters the hollow gear 30 (see FIG. 7) along an assembly direction A2, and contacts the assembly slope 96A. The urging end 84 pushes the latching member 80 into the lateral groove 165 (refer to FIG. 6) according to a moving direction A3, and no longer blocks the insertion portion 96.

In FIG. 9, the insertion portion 96 reaches the through hole 163 of the case portion 16 through the driving space of the gear 30. The release button 70 is pushed back to its original position by the compression spring 74, and the resisting portion 76 is also displaced in the same direction, so that the contact with the inclined surface 88 drives the latch 80 to gradually expose the through hole 163. The ring groove 98 receives the urging end 84 (refer to FIG. 10) of the latch 80 and completes the assembling operation of the adapter 90 and the shell 16.

As shown in FIG. 7, the gear 30 faces the corner of the insertion portion 96 with the valleys 34, so that the crest 36 contacts the side of the insertion portion 96, which is beneficial to the wrench 10 operating the adapter 90 to rotate in the same direction.

FIG. 10 shows the removal operation of the adapter 90. The pre-procedure for disassembling is the same as the assembling operation. Both are to let the release button 70 move down along the force direction A1 so that the resisting portion 76 leaves the force end 82 and does not block the latch 80.

Subsequent removal actions are different: the adapter 90 moves along a removal direction A4 to remove the inclined surface 98A and contact the force applying end 84. Then, the latching member 80 is also retracted into the lateral groove 165 (refer to FIG. 6) according to the moving direction A3, and the latching relationship between the latching member 80 and the ring groove 98 is released. Without the blocking of the latching member 80, the insertion portion 96 can exit the wrench 10 (see FIG. 5).

Claims (10)

A direction locking structure of a wrench includes a shell portion (16) having a through hole (163), a transverse groove (165), a direction button chamber (167), and a release hole (167C). The through hole (163) Via the transverse groove (165) to the direction button chamber (167), the release hole (167C) communicates with the direction button chamber (167); a release button (70), which protrudes a resisting portion (76), the release The button (70) retracts into the direction button chamber (167) or exposes the shell portion (16) through the release hole (167C). The resisting portion (76) prevents the release button (70) from leaving the shell portion (16); a direction button (60) ), Which is arranged in the direction button chamber (167) and surrounds the outer circumferential surface (78) of the release button (70). The direction button (60) drives the release button (70) to rotate in the same direction through the resisting portion (76), but does not A release hole (167C) affecting the release button (70) to enter and exit the shell portion (16); a latch member (80), which is inserted into a lateral groove (165) of the shell portion (16), and the latch member (80) has a The force end (82) and a force applying end (84), the force receiving end (82) is pushed by the resisting portion (76), and the latch (80) is driven to displace in the transverse groove (165), so that the force applying end (84) The through hole (163) of the shell portion (16) is exposed. According to the directional latching structure of the wrench according to item 1 of the scope of patent application, wherein the shell portion (16) further has a restriction hole (162) engaging the connection hole (163), the restriction hole (162) passes through a set of convex portions The space between (166) leads to the direction button chamber (167); a guide part (86) stands on the side of the latch (80), and the guide part (86) falls between the set of convex parts (166) Reciprocating displacement limits linear movement of the latching member (80) relative to the shell portion (16) in the transverse groove (165). According to the direction latching structure of the wrench as described in the second item of the patent application scope, wherein the latching member (80) also has an inclined surface (88), the inclined surface (88) connects the force end (82) to the guide portion (86) ), Can receive the force of the transmission release button (70) of the resisting portion (76) to expose the shell portion (16), and push the latching member (80) to move relative to the shell portion (16) in the transverse groove (165). According to the directional latching structure of the wrench according to item 2 of the scope of patent application, wherein the shell portion (16) further has a gear chamber (161), and the gear chamber (161) is connected to the through hole (162) through a restriction hole (162). 163); a gear (30) having a set of teeth (32) and at least one shaft portion (38), the set of teeth (32) continuously protruding along the circumferential direction from the outer surface of the gear (30), the shaft portion (38) The restriction hole (162) of the shell portion (16) is inserted to support the gear (30) to rotate in the gear chamber (161), and can prevent the guide portion (86) from leaving the distance between the convex portions (166) of the group. According to the direction locking structure of the wrench according to item 4 of the patent application scope, wherein the shell portion (16) also has a tooth block chamber (164), and the tooth block chamber (164) makes the gear chamber (161) and the direction The button chamber (167) is in communication; a tooth block (40) having an occlusal surface (42), the tooth block (40) is inserted into the tooth block chamber (164) of the shell portion (16), and the occlusal surface (42) is two One of the teeth (32) of the meshing gear (30) on one side determines that the gear (30) moves unidirectionally in the opposite direction to the shell (16), and moves in the opposite direction. According to the directional latching structure of the wrench according to item 5 of the scope of the patent application, wherein the shell portion (16) further has an enlarged diameter groove (167B), and the enlarged diameter groove (167B) moves from the direction button in the direction of the axis. The chamber (167) extends outward and is connected to the tooth block chamber (164); a rotating member (50), which has a designated portion (52) with a telescopic structure (522) and a convex portion Edge (56), the rotating member (50) is inserted into the direction button chamber (167) of the shell portion (16), which can be driven by the direction button (60) to rotate, and the flange (56) is in the expansion groove (167B) moves back and forth, the flange (56) prevents the rotating member (50) from leaving the shell portion (16), and the designated portion (52) resists a concave curved surface formed by the back of the tooth block (40) with a telescopic structure (522) (44), determine the teeth (32) of the occlusal surface (42) to engage the gear (30) on one side. According to the direction latching structure of the wrench according to item 6 of the patent application scope, wherein the rotating member (50) bulges a post (51), and the post (51) faces a spring groove (72) of the release button (70). A compression spring (74), one end of which is inserted into the spring groove (72) of the release button (70), and the other end is sleeved with a column (51) to abut the rotating member (50), and the compression spring (74) provides release The force required for the button (70) to expose the shell (16). According to the direction locking structure of the wrench according to item 6 of the patent application scope, wherein the rotating member (50) has a driven portion (58); the direction button (60) has a receiving portion (64), and the receiving portion The placement part (64) exists between the two driving parts (63); when the driven part (58) is placed in the accommodation part (64), the two driving parts (63) are on both sides of the driven part (58), and the direction buttons ( 60) The rotating member (50) is driven to rotate in the same direction. According to the direction latching structure of a wrench according to item 7 of the scope of patent application, wherein the shell portion (16) also has an angle groove (167A), the angle groove (167A) sinks into the top surface (18) of the shell portion (16) The directional button chamber (167) and the release hole (167C) pass through directly; the directional button (60) has an extension (65), and the extension (65) is exposed in the angle groove (167A) of the shell (16). According to the direction locking structure of the wrench described in item 4 of the scope of patent application, there is also an adapter (90), the adapter (90) includes: an insertion portion (96); an end formed on the insertion portion (96) Edge assembly bevel (96A); a ring groove (98) trapped around the insertion portion (96); a removal bevel (98A) formed on one side of the ring groove (98); when the insertion portion (96) is combined with a hollow Gear (30), the assembly slope (96A) touches the force applying end (84) and pushes away the latch (80), the latch (80) resets and enters the ring groove (98), preventing the adapter (90) ) Leaves the shell portion (16); when the insertion portion (96) exits the gear (30), the removal slope (98A) pushes away the force applying end (84), and releases the latching member (80) and the ring groove (98). Relationship.