TW201307005A - Ratchet wrench structure - Google Patents

Abstract

The present invention relates to a ratchet wrench structure comprising a main body configured with a first receiving slot, a second receiving slot, a first abutting surface, and a third receiving slot; a ratchet pivoted in the first receiving slot, the ratchet configured with a ratchet portion; a stopping tooth received in one side of the second receiving slot, the stopping tooth configured with a plurality of engaging teeth engaging with the ratchet portion, the rear side of the stopping tooth configured with a concave arc slot, the concave arc slot protruded with a bump for dividing the concave arc slot into an upper and lower sections, the top of the bump having a second abutting surface; a rotating set pivoted within the third receiving slot, the rotating set comprising: a rotating member, two first push nuts and two elastic members, the rotating member pivoted within the third receiving slot and configured with two limiting slots, the two limiting slots respectively aligning the upper and lower concave arc slots; each first push nut and the elastic member received within each limiting slot, one of the first push nuts leaning against the first abutting surface while another first push nut leans against the second abutting surface, and the rotating member is pivoted at the third receiving slot.

Description

Ratchet wrench structure

The present invention relates to a ratchet wrench structure, and more particularly to a system of a ratchet wrench having a first abutting surface, the toothing being provided with a second abutting surface, the first top cap being abutted against the first abutting surface The other first top cap is abutted against the second abutting surface, and the steering member is pivotally disposed at the third receiving groove by the two first top caps.

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 During operation, it may accidentally fall to the ground. When the ratchet is slammed, 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 which 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 accommodated in the groove The inside of the restricting groove 521 of the turn button 50.

One end of the spring cap 90 is received in the recess 42 and the other end is received in the limiting slot 521. Thus, the steering knob 50 is pivotally disposed in the third receiving slot 15 without being disengaged. The structure disclosed in 6282992.

U.S. Patent No. 6,282,992 discloses a spring cap 90 such that the spring cap 90 is restrained by the teeth 40, which in turn limits the steering knob 50, and only one of the restraining structures when the ratchet strikes easily biases the steering knob 50 apart. At the third pocket 15, the ratchet wrench cannot be rotated continuously, and the US Pat. No. 6,282,992 and 2,957,377 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.

The body is provided with a first abutting surface, the toothing is provided with a second abutting surface, a first top cap abuts against the first abutting surface, and the other first top cap abuts against the second abutting surface The steering member is pivotally disposed at the third cavity.

A ratchet wrench structure includes: a system having a first receiving groove, a second receiving groove, a first abutting surface and a third receiving groove; a ratchet system pivotally disposed in the first receiving groove, the ratcheting ring a ratchet portion is disposed; a tooth system is disposed on a side of the second cavity, the tooth is provided with a plurality of teeth for meshing with the ratchet portion, and the back side of the tooth is provided with a concave arc groove, the concave arc The groove is convexly provided with a protrusion, and the concave arc groove is divided into two upper and lower sections, and the second upper surface of the protrusion is attached to the groove; a steering group is pivoted in the third cavity, and the steering group includes: a steering member, two first top caps and two elastic members; the steering member is pivotally disposed in the third receiving slot and is provided with two limiting slots, wherein the two limiting slots are respectively aligned with the upper and lower concave arc slots; The first top cap and the elastic element are received in each of the limiting grooves, wherein a first top cap abuts against the first abutting surface, and the other first top cap abuts against the second abutting surface, The steering member is pivotally disposed at the third cavity.

The first top cap abuts against the first abutting surface, the body limits the first top cap, and the other first top cap abuts against the second abutting surface, the toothing restricts the The first top cap and the second top cap are respectively accommodated in the two restricting slots, that is, the steering member is restricted by the second top cap and the first abutting surface, and the second second cap and the second The restriction of the face is not disengaged from the third tank, and there is a restriction structure of two places. When the ratchet wrench is slammed, the probability that the steering member is disengaged from the third tank 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 force. The steering member only needs to be drilled with two limiting grooves, and has less processing cost.

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 exploded view of the first figure, the second figure is a schematic view of the structure of the tooth (30), and the third figure is a combination diagram. The present invention relates to a ratchet wrench structure, which comprises: a body (10) The body (10) is provided with a handle at one end for holding by a hand, and the working end of the body (10) is provided with a first receiving groove (11) penetrating the side of the first receiving groove (11) A second pocket (12) having a smaller diameter is disposed, and a center of the second pocket (12) is located within the first pocket (11), and the first pocket (11) and the second pocket (12) The second receiving groove (12) is closed, and the second receiving groove (12) is provided with a first abutting surface (121), and the second receiving groove (12) a third pocket (13) is disposed at a proximal shank, the third pocket (13) is in communication with the second pocket (12), and the third pocket (13) faces the first The surface (121) is open, and the third receiving groove (13) is provided with two positioning portions (14) at the handle portion, and the first receiving groove (11) is provided with a receiving groove at the upper opening portion ( 15), the cover groove (15) is larger than the first receiving groove (11), and the cover groove (15) is away from the first abutting surface (121), the cover groove (15) The upper edge is provided with a buckle groove (16), and the body (10) is provided with a notch (17) at an appropriate end of the end face, and the notch (17) is in communication with the buckle groove (16) The bottom of the first receiving groove (11) is provided with a small diameter (18); a ratchet (20), the ratchet (20) is pivotally disposed in the first receiving groove (11), the ratchet ( 20) The outer peripheral edge is provided with a ratchet portion (21) of annularly arranged teeth, and a center of the ratchet wheel (20) is provided with a fitting portion (22), and the cross-section of the sleeve portion (22) is quadrangular for fitting a sleeve having a smaller diameter abutting portion under the ratchet wheel (20), the abutting portion abutting against the abutting edge (18); a toothing (30), the toothing (30) is placed in the second One side of the pocket (12), 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 teeth (30) are The side system is provided with a concave arc groove (32), and the concave arc groove (32) is convexly provided with a convex piece (33) in a middle portion, so that the concave arc groove (32) is divided into upper and lower two sections, and the convex part (33) a second abutting surface (34); a steering group (40), the steering group (40) is pivotally disposed in the third pocket (13), the steering group (40) is rotated to control the tooth making (30) in the second pocket (12) The steering group (40) includes: a steering member (41), two first top caps (42), two elastic members (43), and two seconds. a top hat (44); the steering member (41) is provided with a cylindrical block (411), the cylindrical block (411) is pivotally disposed in the third pocket (13), and the side of the cylindrical block (411) is Two restriction grooves (412) are provided, and the two restriction grooves (412) are respectively aligned with the upper and lower concave arc grooves (32) separated by the protrusions (33); each of the first top hats (42), elastic The component (43) and the second top cap (44) are assembled in each of the limiting slots (412), and each of the elastic components (43) is received in each of the first top caps (42). And each of the second top caps (44), the first top cap (42) is wrapped around the second top cap (44) portion, each of the first top caps (42) being subjected to elastic members (43) the elastic top is abutted against the concave arc groove (32), and each of the second top caps (44) is elastically biased against the elastic member (43) to abut the positioning portion (14) to position the steering group (40), a first top cap (42) abuts against the first abutment surface (121) of the body (10), and the other first top cap (42) abuts against the tooth (30) Second face (34) The steering member (41) is pivoted at the third pocket (13) without being disengaged by the two first top caps (42), respectively; a cover body (50), the cover body (50) The cover body (50) is accommodated in the cover cover groove (15), and the cover body (50) is provided with a snap-fit groove (51), the snap-fit groove (51) and the buckle groove (16) Relatively positive; a buckle (60), the buckle (60) is a C-shaped ring body, and the buckle (60) is accommodated in the buckle groove (16) and the snap groove (51) The cover body (50) is disposed at the cover groove (15), and the clamp ring (61) is provided at two ends of the buckle ring (60), and the clamp hole (61) is received at 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 third figure.

Please refer to the fourth figure, which is a side view of the present invention, and the fifth figure is a cross-sectional view of the AA of the fourth figure. When the counterclockwise rotation, the ratchet (20) is pivoted to the first pocket (11). Wherein, the teeth (30) are received on the left side of the second pocket (12), and the two first top caps (42) are erected against the concave arc groove (32) to make the teeth (30) The bite teeth (31) are engaged with the ratchet portion (21), the left side of the tooth (30) is abutted against the wall of the second pocket (12), and the second top cap (44) is subjected to the elastic member (43). The spring force abuts against the positioning portion (14) to position the steering group (40), thus rotating counterclockwise, clockwise retracting, and the steering member (41) is exposed outside the body (10) for hand Move and control it to reverse.

Please continue to refer to the top view of the sixth figure, the seventh figure is the sectional view of BB of the sixth figure, and the eighth figure is the sectional view of CC of the sixth figure, the ratchet (20) is located at the edge (18) The buckle (60) is disposed between the buckle groove (16) of the body (10) and the snap groove (51) of the cover (50), and the first top cap (42) is fastened. Abutting the first abutting surface (121), the body (10) limits the first top cap (42), and the other first top cap (42) abuts against the second abutting surface (34). The tooth (30) restricts the first top cap (42), and the two first top caps (42) are respectively accommodated in the two restricting grooves (412), that is, the steering member (41) is subjected to The restriction of one second top cap (42) and the first abutting surface (121) and the restriction of the other second top cap (42) and the second abutting surface (34) without disengaging the third pocket (13) The utility model has the limitation structure of two places. When the ratchet wrench collides, the probability that the steering member (41) disengages the third pocket (13) is greatly reduced, which is the greatest advantage of the invention.

In another embodiment of the present invention, the sleeve portion (22) of the ratchet wheel (20) may be in the shape of a polygonal groove, such as a twelve-angle groove or a hexagonal groove, for directly screwing the screw.

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. The steering member (41) only needs to be drilled with two limiting grooves (412), which is a small processing cost.

Therefore, the ratchet wrench structure of the invention has industrial utilization, novelty and progress, and can meet the application requirements of the invention patent, and submits an application according to law.

(10). . . Ontology

(11). . . First pocket

(12). . . Second pocket

(121). . . First face

(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). . . Second face

(40). . . Steering group

(41). . . Steering piece

(411). . . Cylindrical block

(412). . . Limit slot

(42). . . First top hat

(43). . . Elastic component

(44). . . Second top hat

(50). . . Cover

(51). . . Retaining groove

(60). . . Buckle

(61). . . Clamp hole

The first figure is an exploded 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 combination diagram of the structure of the ratchet wrench of the present invention.

The fourth figure is a side view of the ratchet wrench structure of the present invention

Figure 5 is a cross-sectional view taken along line A-A of the fourth drawing of the present invention.

Figure 6 is a top view of the ratchet wrench structure of the present invention.

Figure 7 is a cross-sectional view taken along line B-B of the sixth drawing of the present invention.

Figure 8 is a cross-sectional view taken along line C-C of the sixth drawing of the present invention.

(10). . . Ontology

(11). . . First pocket

(12). . . Second pocket

(121). . . First face

(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

(40). . . Steering group

(41). . . Steering piece

(411). . . Cylindrical block

(412). . . Limit slot

(42). . . First top hat

(43). . . Elastic component

(44). . . Second top hat

(50). . . Cover

(51). . . Retaining groove

(60). . . Buckle

(61). . . Clamp hole

Claims (8)

A ratchet wrench structure includes: a body, the working end of the body is provided with a first receiving groove, and the second receiving groove is disposed at a side of the first receiving groove near the handle The center of the circle is located in the first pocket, the first pocket is in communication with the second pocket, the second pocket is provided with a first abutting surface, and the second pocket is adjacent to the handle The third receiving groove is in communication with the second receiving groove, the third receiving groove is open to the first abutting surface, and the bottom of the first receiving groove is provided with a smaller diameter. a ratchet, the ratchet is pivotally disposed in the first pocket, the outer circumference of the ratchet is provided with a ratchet portion of the annular arrangement of teeth, the center of the ratchet is provided with a sleeve portion, and the diameter of the ratchet is smaller The abutting portion is abutting against the abutting portion; the toothing system is disposed on a side of the second cavity, and the front side of the toothing is provided with a plurality of occlusal teeth, and the plurality of occlusal teeth are The ratchet portion is engaged, and the rear side of the toothing is provided with a concave arc groove, and the concave arc groove is convexly provided with a convex portion in the middle portion, so that the concave arc groove is divided into two upper and lower portions. A second abutting surface is disposed on the upper portion of the bump; a steering group is pivotally disposed in the third receiving groove, the steering group is rotated to control the tooth to be displaced in the second receiving groove to the left and right to control the ratchet wrench The steering set includes: a steering member, two first top caps and two elastic members; the steering member is provided with a cylindrical block, and the cylindrical block is pivotally disposed in the third cavity, the cylinder The block system is provided with two limiting grooves, and the two limiting grooves are respectively aligned with the upper and lower concave arc grooves; the first top cap and the elastic element are assembled and then accommodated in each limit In the slot, each of the first top caps is elastically abutted against the concave arc groove by the elastic member, and a first top cap abuts against the first abutting surface of the body, and the other first top cap Abutting against the second abutting surface of the toothing, the steering member is pivoted at the third receiving groove without being disengaged by the two first top caps respectively abutting. The ratchet wrench structure of claim 1, wherein the upper and lower sides of the second receptacle are closed. The ratchet wrench structure of claim 2, wherein the third pocket is provided with two positioning portions at the handle portion, and the steering group is provided with two second top caps, each of the first top caps, elastic The component and the second top hat are assembled and disposed in each of the limiting slots, and each of the elastic components is disposed between each of the first top caps and each of the second top caps, each of the first The top cap covers the second top hat portion, and each of the first top caps is elastically abutted against the concave arc groove by the elastic member, and each of the second top caps is elastically biased against the elastic member The steering group is positioned at the positioning portion. The ratchet wrench structure of claim 3, wherein the opening of the first receiving groove is provided with a cover groove, the cover groove has a larger diameter than the first receiving groove, and the cover groove is away from the first contact surface. The cover system is in the form of a ring, and the cover system is accommodated in the cover groove. The ratchet wrench structure of claim 4, wherein the upper edge of the cover groove is provided with a buckle groove, and the cover system is provided with a snap groove, the buckle groove is opposite to the buckle groove, and a buckle is provided. The ring is a C-shaped ring body, and the buckle is received in the buckle groove and the snap groove, so that the cover is disposed at the cover groove. The ratchet wrench structure of claim 5, wherein the working end of the body is provided with a slot, the slot is in communication with the ring groove, and the two ends of the buckle are provided with a clamping hole, and the clamping hole is accommodated in Missing slot. The ratchet wrench structure according to claim 6, wherein the center of the ratchet is provided with a fitting portion, and the cross-section of the fitting portion has a quadrangular shape. The ratchet wrench structure of claim 6, wherein the ratchet sleeve portion is polygonal.