TW201325825A - Ratchet wrench structure - Google Patents

Abstract

This invention relates to a ratchet wrench structure, comprising: a body forming a first groove, a second groove, and a third groove; a ratchet rotatably received in the first groove; a pawl received in the second groove, wherein the rear end of the pawl is provided with a concave slot, the tooth comprising a bump protruding therefrom, a first abutting face being defined between the bump and the concave slot, an open end of the pawl that is distant from the third groove forming a second abutting face; and a turning set rotatably received in the third groove, the turning set comprising a turning member, a first cap, and an elastic member, wherein the turning member is provided with a cylinder rotatably received in the third groove, the cylinder comprising a restraining groove, the cylinder having one end provided with a top face abutting the second abutting face. Restrained by the second abutting face, the turning member is rotatably received in the third groove. The first cap and the elastic member are received in the restraining groove, and an outer periphery of the first cap is positioned against the first abutting face, in such a way that the first abutting face restrains the first cap, the first cap then restrains the turning member, and then the turning member is rotatably set in the third groove.

Description

Ratchet wrench structure

The present invention relates to a ratchet wrench structure, and more particularly to a ratchet wrench having a first abutting surface and a second abutting surface, the top surface of the steering member abutting against the second abutting surface, the first top The cap is abutted against the first abutment surface, and the steering member is pivotally disposed at the third cavity by the top surface and the first top cap being restrained by the teeth.

As is known in the prior art, a ratchet wrench structure is used, such as U.S. Patent No. 2,957,377, which is based on a body 10 having a first receiving groove 13, a second receiving groove 16 and a third receiving groove. 24; a ratchet 14, the ratchet 14 is pivotally disposed at the first pocket 13, the outer peripheral ring of the ratchet 14 is provided with a ratchet portion 15; a tooth 19, the tooth 19 is received in the second pocket At the 16th end, the teeth 19 are provided with an annular arrangement of the engaging teeth 20, and the engaging teeth 20 are engaged with the ratchet portion 15, and the toothing 19 is provided with a groove 27 on the other side; a steering knob 23, The steering knob 23 is pivotally disposed at the third pocket 24, the steering knob 23 is provided with a limiting groove 28; an elastic body 26, one end of the elastic body 26 is disposed at the groove 27, and the elastic body 26 is at the other end The body is placed at the restriction groove 28; the body 10, the ratchet 14, the toothing 19, the steering knob 23 and the elastic body 26 are basic components constituting a ratchet wrench, and the steering knob 23 is rotated at the third pocket 24 The elastic body 26 is driven to rotate at an angle, and the elastic body 26 drives the tooth 19 to be displaced at the second receiving groove 16, thereby forming a positive reversal control of the ratchet wrench. The principle is reversed ratchet wrench.

One end of the elastic body 26 is received at the groove 27 of the toothing 19, and the toothing 19 is used to restrain the elastic body 26, and the other end of the elastic body 26 is placed at the restricting groove 28 of the steering knob 23, and the elastic body 26 is further The steering knob 23 is limited, so that the steering knob 23 can be pivoted at the third pocket 24 without being disengaged, and the steering knob 23 is provided with a ring groove 36, and a ring 37 is provided, and the ring 37 is accommodated in the ring In the groove 36, the ring 37 is further clamped on the inner circumferential surface of the third receiving groove 24, so that the steering knob 23 is pivoted at the third receiving groove 24 without being disengaged, and the turning button 23 is made of an elastic body. 26 and the limitation of the ring 37 are pivoted at the third pocket 24, which is the structure disclosed in the U.S. Patent.

However, the absence of the structure of U.S. Patent No. 2,957,377 is that, as shown in the fourth figure of the publication, the ring 37 is housed in the annular groove 36, but the ring 37 is only locked by friction. The inner peripheral surface of the three-receiving groove 24 is substantially restricted by the teeth 19 to limit the elastic body 26 and the elastic body 26 to restrict the steering knob 23, so that the steering knob 23 is pivoted at the third receiving groove 24, but when the ratchet wrench is operated Sometimes it is accidentally dropped to the ground. When the ratchet wrench collides, there is only one restriction structure that makes the steering knob 23 disengage from the third pocket 24, so that the ratchet wrench cannot continue to rotate.

Another U.S. Patent No. 6,282,992, which is supplemented by the first and the ninth drawings, the ratchet wrench of the patent is also provided with basic components such as the body 12, the ratchet 72, the tooth 40, the steering knob 50 and the elastic body 92. The patent case further discloses a spring cap 90. The spring cap 90 is sleeved on the elastic body 92. One end of the spring cap 90 is received in the groove 42 of the tooth 40, and the other end of the spring cap 90 is received on the steering button. Within the limit slot 521 of 50.

The spring cap 90 is received in the recess 42 at one end, and the other end is received in the limiting slot 521, so that the steering knob 50 is pivotally disposed in the third receiving slot 15 without being disengaged. This is a U.S. Patent 6,282,992. The structure disclosed.

U.S. Patent 6,282,992 discloses a spring cap 90 such that the spring cap 90 is restrained by the teeth 40. The spring cap 90 limits the steering knob 50. When the ratchet wrench is slammed, there is only one restriction structure that easily disengages the steering knob 50. At the 15th slot, the ratchet wrench can not continue to rotate, and US Patent 6282992 and 2957377 have the same missing.

In view of the above-described conventional ratchet wrench structure, the inventors have been researching and developing through years of experience in related industries, and finally have a ratchet wrench structure product.

A ratcheting wrench is provided with a first abutting surface and a second abutting surface, the top surface of the steering member of the steering group is abutted against the second abutting surface, and the first top cap is abutted against the first abutting At the surface, the steering member is pivotally disposed at the third cavity without being disengaged by the top surface and the first top cap being restrained by the teeth.

A ratchet wrench structure includes: a system having a first receiving groove, a second receiving groove and a third receiving groove; a ratchet system is pivotally disposed in the first receiving groove; and a toothed system is disposed in the second In the cavity, the rear side of the toothing is provided with a concave arc groove, and the toothing system is convexly provided with a convex block, and the first abutting surface is formed between the convex block and the concave arc groove, and the tooth is away from the open end of the third cavity The second set of facing surfaces is disposed; the steering set is pivotally disposed in the third receiving slot, the steering set includes: a steering member, a first top cap and an elastic component, and the steering component is provided with a cylindrical block The cylindrical block is disposed in the third cavity, the cylindrical block is provided with a limiting groove, and the top end of the cylindrical block is provided with a top surface, the top surface is abutted against the second abutting surface, and the second abutting surface is restricted by the second abutting surface The steering member is pivotally disposed at the third receiving slot; a first top cap and the elastic member are received in the limiting slot, and the outer peripheral surface of the first top cap is abutted against the first abutting surface by the first The first top cap is restricted by the surface, and the first top cap limits the steering member, and the steering member is pivotally disposed at the third receiving groove.

The top surface of the steering member of the steering group is abutted against the second abutting surface of the tooth, and the first top cap is abutted against the first abutting surface, and the tooth is the top surface of the steering member and the first a cap, and the first top cap is received in the limiting slot, the steering group is pivoted in the third receiving slot without disengaging, and the steering group has two limiting structures, when the ratchet wrench is bumped, The probability of the steering member being disengaged from the third pocket is greatly reduced. The tooth system is provided with a bump which is equal to the rib in the structure, and the tooth is more torsion when subjected to the force.

The structure and composition of the present invention are described in conjunction with the drawings and the drawings, and the following description is only for explaining the implementation of the present invention. For example, it is not intended to limit the invention in any way, and any modifications made by the present invention are still within the scope of the invention.

First, please refer to the first to fourth figures. The first figure is a perspective exploded view of the ratchet wrench of the present invention, the second figure is a schematic view of the tooth structure, and the third figure is a structure diagram of the steering piece. The present invention relates to a ratchet wrench. The structure includes a body (10) having a handle at one end for holding by a hand, and a working end of the body (10) is provided with a first receiving groove (11). a second pocket (12) having a smaller diameter is disposed at a side of the first pocket (11), and a center of the second pocket (12) is located within the first pocket (11). A receiving groove (11) is in communication with the second receiving groove (12), and the upper and lower sides of the second receiving groove (12) are closed, and the second receiving groove (12) is near the handle The third receiving groove (13) is in communication with the second receiving groove (12), and the third receiving groove (13) has an open end, the third capacity The groove (13) is provided with a positioning portion (14) at the handle portion, and the opening portion of the first receiving groove (11) is provided with a cover groove (15), and the diameter of the cover groove (15) is larger than a pocket (11), the upper edge of the lid groove (15) is provided with a buckle groove (16), the body (10) The end face of the working end is provided with a notch (17), and the notch (17) is in communication with the buckle groove (16), and the bottom of the first receiving groove (11) is provided with a small diameter (18) a ratchet wheel (20) pivotally disposed in the first pocket (11) of the body (10), the outer circumference of the ratchet wheel (20) is provided with a ratchet portion (21) of annularly arranged teeth, The ratchet wheel (20) is provided with a fitting portion (22). The cross-section of the fitting portion (22) has a quadrangular shape, and a lower diameter abutting portion is disposed under the ratchet wheel (20), and the abutting portion is offset by Abutting (18); a tooth (30), the tooth (30) is placed on one side of the second pocket (12) of the body (10) and can be attached to the second pocket (12) In the inner left and right displacement position, the front side of the tooth (30) is provided with a plurality of engaging teeth (31), and the plurality of engaging teeth (31) are engaged with the ratchet portion (21), and the rear side of the tooth (30) is concave. The arc groove (32), the tooth (30) is convexly disposed on the open end of the third pocket (13), and the first block is connected with the concave arc groove (32) To the face (34), the tooth (30) is provided with a second abutment surface (35) away from the open end of the third pocket (13); a steering group (40), the steering group (40) is pivoted In the three-capacity slot (13), the steering group (40) is rotated And controlling the teeth (30) to shift left and right in the second pocket (12) to control the forward and reverse rotation of the ratchet wrench, the steering group (40) comprising: a steering member (41), a first top a cap (42), an elastic member (43) and a second top cap (44); the steering member (41) is provided with a cylindrical block (411), and the cylindrical block (411) is pivotally mounted on the body (10) In the third tank (13), the cylinder block (411) is provided with a restricting groove (412) which is formed in a penetrating shape, and the restricting groove (412) is a pair of right teeth (30). a concave arc groove (32) having three top surfaces (413) at one end thereof, the top surface (413) being oriented toward the tooth (30), at least one of the top surfaces (413) being offset The second abutting surface (35) is pivoted by the second abutting surface (35), and the steering member (41) is pivotally disposed at the third receiving groove (13) without disengaging the body (10). The top side (413) of the middle side is provided with a top edge (414), and the steering group (40) rotates in the third pocket (13), and a top edge of the steering member (41) (414) Relying against the edge of the second pocket (12), the top edge (414) limits the maximum angle of rotation of the steering member (41); the first top cap (42), the elastic member (43) and the second top Cap (44) After being assembled, the elastic element (43) is accommodated between the first top cap (42) and the second top cap (44), and the first top cap (42) is Covering a portion of the second top cap (44), the first top cap (42) is resiliently abutted against the concave arc groove (32) of the tooth (30) by the elastic member (43), the second The top cap (44) is positioned against the positioning portion (14) by the elastic member (43) elastically abutting against the positioning portion (14), and the outer peripheral surface of the first top cap (42) is abutted against the tooth (30). On the first abutting surface (34), the first top cap (42) is restrained by the first abutting surface (34), the first top cap (42) re-limiting the steering member (41), and the steering member (41) The cover body (50) is pivoted, and the cover body (50) is received in the cover cover groove (15), and the cover body is disposed at the third cover groove (13). (50) is provided with a snap-fit groove (51), the snap-fit groove (51) is opposite to the buckle groove (16); a buckle (60), the buckle (60) is a C-shaped ring The buckle ring (60) is disposed in the buckle ring groove (16) and the buckle groove (51), so that the cover body (50) is disposed at the cover cover groove (15), and the buckle ring (60) is provided at two ends The clamping hole (61) and the clamping hole (61) are accommodated in the notch (17).

When the ratchet (20), the tooth (30), the steering group (40), the cover (50) and the buckle (60) are assembled to the body (10), as shown in the fourth figure.

Please continue to refer to the fifth and sixth figures. The fifth figure is a side view, and the sixth figure is a cross-sectional view of AA of the fifth figure. When the counterclockwise rotation, the ratchet (20) is pivoted on the body ( 10) at the first pocket (11), the tooth (30) is accommodated in one side of the second pocket (12), and the top surface (413) of the right side of the steering member (41) is abutted The second abutting surface (35) of the tooth (30) and the first top cap (42) abut against the concave arc groove (32) and abut against the first abutting surface (34), the steering member (41) One of the top edges (414) is against the edge of the second pocket (12), which limits the maximum angle of rotation of the steering member (41), and the second top cap (44) is subjected to the elastic element ( 43) The elastic top abuts against the positioning portion (14) to position the steering group (40), and the button of the steering member (41) is exposed outside the body (10) for hand to move and control to reverse.

Please continue to refer to the seventh figure, the seventh figure is the sixth figure rotation stereo view, the seventh figure is the bodyless (10), the stereo position of the tooth (30) and the steering group (40) can be seen. The tooth (30) is received in one side of the second pocket (12) of the body (10), and the top surface (413) of the tooth (30) is abutted against the second surface of the tooth (30). (35) and the first top cap (42) is pedestal to the first abutment surface (34) of the tooth (30), and the steering member (41) is pivoted at the third pocket (13).

Continuing to refer to the eighth figure, the eighth figure is a perspective view of the steering member (41) being switched to the intermediate position, the steering group (40) is rotated, so that the tooth (30) is accommodated in the second pocket (12) In the inner center, the top surface (413) of the steering member (41) is abutted against the second abutting surface (35) of the tooth (30) and the first top cap (42) is topped against the first At the face (34), the steering member (41) is pivoted at the third pocket (13).

As shown in the seventh and eighth figures, at least one top surface (413) of the steering member (41) abuts against the second abutting surface (35) of the tooth (30), and the first top hat (42) ) abutting against the first abutment surface (34), the tooth (30) restricting the top surface (413) of the steering member (41) and the first top cap (42), and the first top cap (42) The steering system is placed in the limiting slot (412), the steering group (40) is pivoted in the third receiving slot (13) without being disengaged, and the steering group (40) has two limiting structures, when the ratchet wrench is 踫When hitting, the probability that the steering member (41) is disengaged from the third pocket (13) is greatly reduced, and having two restrictive structures is the greatest advantage of the present invention.

Please refer to the ninth figure, which is a perspective exploded view of a second embodiment of the present invention. In this embodiment, the body (10) is not provided with a positioning portion (14) and the steering group (40) is not provided. a second top cap (44), a third receiving groove (13) of the body (10) is provided with a positioning hole (19) near the handle, and two bearing bead grooves are arranged on the rear side of the steering member (41) (45), a bead body (70) and an elastic body (71) are provided. The bead body (70) and the elastic body (71) are accommodated in the positioning hole (19), and the bead body (70) is elasticized. The elastic force of the body (71) abuts against a bead groove (45), and when the hand shifting the steering member (41) rotates in one direction and retracts the tooth in the other direction, the bead groove (45) is tapered. The surface compresses the bead (70), and the bead (70) is displaced by the elastic force of the elastic body (71), so that the bead body (70) can be placed against the bead groove (45) on the other side, and the positioning is performed. Turn to group (40).

Please refer to the tenth figure, which is a three-dimensional combination diagram of the third embodiment of the present invention. In this embodiment, the sleeve portion (22) of the ratchet wheel (20) is in the shape of a polygonal groove, such as a twelve-corner groove. Or hexagonal groove shape to directly screw the screw.

In another embodiment of the invention, the cover (50) is integral with the ratchet (20), that is, the ratchet (20) is provided with a snap groove (51).

Other advantages of the ratchet wrench structure of the present invention are:

1. The tooth (30) is provided with a bump (33) which is equal to the rib in the structure, and the tooth (30) is more torsion when subjected to force.

2. When the steering group (40) rotates in the third pocket (13), a top edge (414) of the steering member (41) abuts against the edge of the second pocket (12), and the top edge (414) ) limiting the maximum angle of rotation of the steering member (41) to prevent the first top cap (42) from colliding with the edge of the second pocket (12).

In summary, the ratchet wrench structure of the present invention has industrial utilization, novelty and advancement, and can meet the application requirements of the invention patent, and submit an application according to law.

(10). . . Ontology

(11). . . First pocket

(12). . . Second pocket

(13). . . Third pocket

(14). . . Positioning department

(15). . . Cover groove

(16). . . Buckle groove

(17). . . Missing slot

(18). . . Reach

(19). . . Positioning hole

(20). . . ratchet

(twenty one). . . Ratchet

(twenty two). . . Fitting

(30). . . Tooth

(31). . . Bite tooth

(32). . . Concave arc slot

(33). . . Bump

(34). . . First face

(35). . . Second face

(40). . . Steering group

(41). . . Steering piece

(411). . . Cylindrical block

(412). . . Limit slot

(413). . . Top surface

(414). . . Top edge

(42). . . First top hat

(43). . . Elastic component

(44). . . Second top hat

(45). . . Rongzhu slot

(50). . . Cover

(51). . . Retaining groove

(60). . . Buckle

(61). . . Clamp hole

(70). . . Bead

(71). . . Elastomer

The first figure is an exploded perspective view of the structure of the ratchet wrench of the present invention.

The second figure is a schematic diagram of the tooth structure of the present invention.

The third figure is a schematic structural view of the steering member of the present invention.

The fourth figure is a three-dimensional combination diagram of the structure of the ratchet wrench of the present invention.

Fig. 5 is a side view showing the structure of the ratchet wrench of the present invention.

Figure 6 is a cross-sectional view taken along line A-A of the fifth drawing of the present invention.

Figure 7 is a perspective view of the sixth embodiment of the present invention.

The eighth figure is a perspective view of the steering member of the present invention switched to the middle position

Figure 9 is a perspective exploded view of a second embodiment of the present invention.

Figure 11 is a perspective assembled view of a third embodiment of the present invention.

(10). . . Ontology

(11). . . First pocket

(12). . . Second pocket

(13). . . Third pocket

(14). . . Positioning department

(15). . . Cover groove

(16). . . Buckle groove

(17). . . Missing slot

(18). . . Reach

(20). . . ratchet

(twenty one). . . Ratchet

(twenty two). . . Fitting

(30). . . Tooth

(31). . . Bite tooth

(32). . . Concave arc slot

(33). . . Bump

(34). . . First face

(35). . . Second face

(40). . . Steering group

(41). . . Steering piece

(42). . . First top hat

(43). . . Elastic component

(44). . . Second top hat

(50). . . Cover

(51). . . Retaining groove

(60). . . Buckle

(61). . . Clamp hole

Claims (10)

A ratchet wrench structure, comprising: a body, the working end of the body is provided with a first receiving groove, and a second receiving groove having a smaller diameter is disposed at a side of the first receiving groove near the handle, the second receiving groove The center of the first pocket is in the same manner as the second pocket, and the third pocket is provided with a third pocket at a side of the second pocket. The third receiving groove is in an open shape, and the third receiving groove is open at one end; a ratchet is pivotally disposed in the first receiving groove of the body, and the ratchet outer peripheral edge is provided with a ratchet portion of the annular arrangement tooth The ratcheting system is provided with a fitting portion; a toothing system, the toothing system is disposed on one side of the second receiving groove of the body and can be displaced to the left and right in the second receiving groove, and the front side of the toothing is provided with a plurality of The occlusal teeth, the plurality of occlusal teeth are meshed with the ratchet portion, and the rear side of the toothing is provided with a concave arc groove, and the tooth is convexly disposed by the open end of the third cavity, and the convex block and the concave arc groove are arranged The first abutting surface is provided, and the second toothing surface is disposed away from the open end of the third cavity; the steering group is pivoted in the third cavity, Rotating the group to control the teeth to be displaced left and right in the second tank to control the forward and reverse rotation of the ratchet wrench, the steering group comprising: a steering member, a first top cap and an elastic member; the steering member The cylindrical block is pivotally disposed in the third cavity of the body, the cylindrical block is provided with a limiting groove, and the limiting groove is a concave arc groove of the right tooth, and the cylindrical block is provided at one end. The top surface is oriented toward the toothing, the top surface is abutted against the second abutting surface, and the steering member is pivotally disposed at the third cavity without being disengaged from the body by the second abutting surface The first top cap and the elastic element are received in the limiting groove, and the first top cap is elastically abutted against the concave arc groove of the toothing, and the outer surface of the first top cap is abutted The first top cap is restrained by the first abutting surface on the first abutting surface of the tooth, and the first top cap is further limited to the steering member, and the steering member is pivotally disposed at the third receiving groove. The ratchet wrench structure according to claim 1, wherein the cylindrical block is provided with three top surfaces at one end, the top surface is oriented toward the teeth, and at least one of the top surfaces is abutted against the second abutting surface, the middle top Each of the two side edges is provided with a top edge, and the steering group rotates in the third receiving groove, and a top edge of the steering member abuts against the edge of the second receiving groove, the top edge limits the maximum rotation of the steering member angle. The ratchet wrench structure of claim 2, wherein the upper and lower sides of the second receptacle are closed. The ratchet wrench structure of claim 3, wherein the working end of the body is provided with a first receiving groove therethrough. The ratchet wrench structure of claim 4, wherein the bottom of the first tank is provided with a small diameter abutting edge, and a lower diameter abutting portion is disposed below the ratchet, the abutting portion is abutting against the abutting portion. The ratchet wrench structure of claim 5, wherein the third receiving groove is provided with two positioning portions at the shank, the limiting groove is formed in a penetrating shape, and the second top cap is provided, the first top cap The elastic element and the second top hat are assembled in the limiting slot, and the elastic component is received between the first top cap and the second top cap, and the first top cap is wrapped around the second top In the cap portion, the first top cap is elastically abutted against the concave arc groove of the toothing, and the second top cap is positioned by the elastic member to abut against the positioning portion to position the steering group. The ratchet wrench structure of claim 5, wherein the third recess of the body is provided with a positioning hole at the shank, and the rear side of the steering member is provided with two ball-receiving grooves, and a bead body and elasticity are provided. The bead body and the elastic system are accommodated in the positioning hole, and the bead system is abutted against the elastic bead groove by the elastic force of the elastic body. The ratchet wrench structure of claim 6 or 7, wherein the opening of the first receiving groove is provided with a receiving groove, the diameter of the receiving groove is larger than the first receiving groove, and the upper edge of the receiving groove is The cover ring is provided with a notch at the end surface of the working end, and the notch is in communication with the buckle groove, and is provided with a cover body. The cover system is in the shape of a ring, and the cover system is accommodated in the cover groove. Wherein, the cover system is provided with a snap-fit groove, and the snap-fit groove is opposite to the buckle groove; a buckle is provided, the buckle is a C-shaped ring body, and the buckle ring is accommodated in the buckle groove and the snap groove Inside, the cover body is disposed at the cover cover slot, and the two ends of the buckle ring are provided with a clamping hole, and the clamping hole is disposed at the missing slot. The ratchet wrench structure of claim 8, wherein the cross section of the ratchet portion has a quadrangular shape. The ratchet wrench structure of claim 9, wherein the ratchet sleeve portion has a polygonal groove shape.