TW201902631A - Ratchet wrench structure comprising a main body, a ratchet, a pawl, an elastic member, and a limiting member - Google Patents

Abstract

The present invention relates to a ratchet wrench structure, which comprises: a main body provided with a first receiving groove, a second receiving groove and a first circumferential surface; a ratchet pivotally disposed inside the first receiving groove, wherein the outer circumferential edge of the ratchet is provided with annularly arranged ratchet portions; a pawl accommodated in the second receiving groove and abutting against one side of the second receiving groove, wherein the front side of the pawl is provided with a plurality of interlocking teeth for being engaged with the ratchet portions, one side of the pawl is provided with a first surface, the rear side of the pawl is provided with a second surface and a third surface, the second surface abuts against the first circumferential surface, and the third surface is located between the first surface and the second surface; an elastic element accommodated in the second receiving groove, wherein one end of the elastic element elastically abuts against the first circumferential surface, the other end of the elastic element elastically abuts against the third surface, such that the interlocking teeth are engaged with the ratchet portions; a limiting member accommodated in the second receiving groove of the main body, wherein the limiting member abuts against the first circumferential surface and the first surface of the pawl, and the limiting member is in the shape of a bead body, a regular polyhedron or a cylinder.

Description

 Ratchet wrench structure  

The invention relates to a ratchet wrench structure, in particular to a ratchet wrench structure which is provided with a limiting member which is in the form of a ball, which has a lower manufacturing and component cost.

As we have previously known, the conventional ratchet wrench structure is also a patent application filed by us, such as Taiwan Patent Application No.: 104122428, Certificate No.: I558512, US Patent Application No.: 14/929345, Patent Name: Ratchet Wrench Structure The structure of the patent system is: a ratchet wrench structure, comprising: a body 10, the body is provided with a handle at one end, the working end of the body is provided with a first receiving slot 11, and the first receiving slot 11 is The bottom of the first pocket 11 is provided with a flange 111. The first pocket 11 is provided with a second pocket 12 near the handle. The first pocket 11 and the second pocket 12 are The second cavity 12 is smaller than the first cavity 11 , and the center of the second cavity 12 is located in the first cavity 11 , and the first cavity 11 is adjacent to the opening. a first buckle groove 13 is formed on the bottom of the second cavity 12; a ratchet 20 is pivoted in the first cavity 11, and the ratchet 20 is seated on the flange 111. The outer peripheral edge of the ratchet wheel 20 is provided with a ratchet portion 21 of an annular array of teeth, and a sleeve portion 22 is disposed at the center of the ratchet wheel 20, The ratchet 20 is provided with a second buckle groove 23, which is opposite to the first buckle groove 13; a tooth 30 is received to abut against the second cavity 12 On the inner side, the front side of the tooth 30 is provided with a plurality of engaging teeth 31 which mesh with the ratchet portion 21 of the ratchet 20, and the tooth 30 is provided with a first surface 32, and the volume of the tooth 30 The elastic member 40 is disposed at one end of the elastic member 40, and the elastic member 40 is elastically mounted on the elastic bomb 40. Between the bottom end of the groove 14 and the tooth 30, the engaging tooth 31 is engaged with the ratchet portion 21; a limiting member 50 is received at the second receiving groove 12 of the body 10, the limiting member 50 The second surface 51 is disposed to abut the first surface 32 of the tooth 30 or has a small gap with the first surface 32. The limiting member 50 is provided with a third surface 52. The third surface 52 is slightly abutted against the ratchet portion 21 of the ratchet wheel 20, and the limiting member 50 is provided with abutment surface 53 which abuts against the circumferential surface of the second pocket 12; Buckle 60, the buckle 60 is a C-shaped ring And slightly flexible, the retaining ring 60 are accommodated within the snap ring groove 23 of the first buckle 13 and the second groove, so that the ratchet 20 is pivoted to the line at the first receiving groove 11.

However, the missing of the conventional ratchet wrench is that, as shown in the second and third figures of the bulletin, the restricting member 50 is in the shape of a square ring spring, which is time-consuming and expensive to manufacture. The restriction member 50 is basically bent out by using a 3D bending machine, and the restriction member 50 has a large cost, so that the production cost is increased, and the two ends of the restriction member 50 sometimes protrude outside the square shape. The end of the restricting member 50 is easily rubbed against the teeth of the ratchet portion 51.

In view of the above-mentioned conventional patented ratchet wrench structure, the inventors have years of experience in manufacturing and designing related industries, and finally have a product that can solve the drawbacks of the ratchet wrench structure.

Conventionally, the restraining member has a square ring-shaped spring shape, which is time-consuming and labor-intensive to manufacture. The restricting member is basically bent by using a 3D bending machine, and the limiting member has a large cost. The limiting member of the present invention is in the form of a bead, and the limiting member is easily accommodated in the second receiving groove of the body, and the limiting member has a lower manufacturing cost.

The present invention relates to a ratchet wrench structure, which comprises: a system having a first receiving groove, a second receiving groove and a first circumferential surface; a ratchet system is pivotally disposed in the first receiving groove, the ratchet outer circumference The edge is provided with a ratchet portion of the annular arrangement of teeth; a tooth system is received against the inner side of the second receiving groove, and the front side of the toothing is provided with a plurality of engaging teeth for engaging with the ratchet portion, a first surface is disposed on a side of the tooth, and a second surface and a third surface are disposed on the rear side of the tooth, the second surface is abutted against the first circumferential surface, and the third surface is disposed on the first surface Between one side and the second side; an elastic element is received at the second receiving groove, one end of the elastic element is elastically abutted against the first circumferential surface, and the other end of the elastic element is elastically biased against the third surface The engaging tooth system is engaged with the ratchet portion; a limiting member is received at the second receiving groove of the body, the limiting member is coupled to the first circumferential surface and the first toothing The surface is abutted, and the limiting member is in the form of a bead, a regular polyhedron or a cylinder.

The limiting member is in the shape of a ball, and the limiting member is received in the second receiving groove. The limiting member can limit the displacement range of the tooth in the second receiving groove. Low manufacturing costs. The limiting member has a bead shape, and the limiting member is tangentially abutted between the first circumferential surface and the first surface, and the limiting member is relatively easy to be assembled in the second receiving groove. When the tangential contact is reached, the first surface can be in a planar shape or a curved surface and has the effect of tangential contact. The limiting member has a bead shape, and the limiting member is freely rotatable in the second receiving groove, and the limiting member can be longer when it is tangentially offset from the first circumferential surface and the first surface Service life.

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.

10‧‧‧ Ontology

11‧‧‧First slot

111‧‧‧

12‧‧‧Second capacity

121‧‧‧First week

13‧‧‧First buckle ring groove

20‧‧‧ratchet

21‧‧‧ratchet

22‧‧‧ Included

23‧‧‧Second buckle groove

30‧‧‧ teeth

31‧‧‧Bite teeth

32‧‧‧ first side

33‧‧‧Bumps

34‧‧‧ second side

35‧‧‧ third side

40‧‧‧Flexible components

50‧‧‧Restrictions

60‧‧‧ buckle

70‧‧‧ cover

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

The second figure is a rear view of the ratchet wrench structure of the present invention.

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

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

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

Figure 6 is a cross-sectional view showing another operation of the fourth embodiment A-A of the present invention.

Figure 7 is a top view of the ratchet wrench structure of the present invention.

Figure 8 is a cross-sectional view taken along line B-B of the seventh embodiment of the present invention.

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

Fig. 10 is a perspective view showing a restriction member of a third embodiment of the present invention.

Figure 11 is a perspective view of a restraining member of a fourth embodiment of the present invention.

Fig. 12 is a perspective view showing a restriction member of a fifth embodiment of the present invention.

First, please refer to the first figure and the second figure. The first figure is an exploded perspective view of the ratchet wrench structure of the present invention, and the second figure is a rear view of the ratchet wrench structure tooth 30 of the present invention. The present invention relates to a ratchet wrench structure. The main body 10 is provided with a handle portion. The body 10 is provided with a first receiving groove 11 at the working end, and the first receiving groove 11 is formed in a circular groove shape. The bottom of the slot 11 is provided with a flange 111. The second slot 12 is disposed on the side of the first slot 11 near the handle. The second slot 12 is in communication with the first slot 11 . The diameter of the second tank 12 is smaller than the diameter of the first tank 11, the center of the second tank 12 is located in the range of the first tank 11, and the upper and lower sides of the second tank 12 are closed. The first receiving surface 121 is formed in a curved shape, and the first receiving groove 11 is provided with a first buckle groove 13 near the opening. A buckle groove 13 is in the shape of a ring groove; a ratchet 20 is pivotally disposed in the first cavity 11 , and the ratchet 20 is seated at the flange 111 , and the outer circumference of the ratchet 20 The ratchet wheel 20 is provided with a ring-shaped portion 21, and the ratchet wheel 20 is provided with a sleeve portion 22 which is formed in a polygonal groove shape for the sleeve screwing member to rotate. The ratchet wheel 20 is provided with a a second buckle groove 23, the second buckle groove 23 is opposite to the first buckle groove 13; a tooth 30, as shown in the second figure, the tooth 30 is placed against The inner side of the second housing 12 is provided with a plurality of engaging teeth 31 on the front side of the toothing 30. The engaging teeth 31 are engaged with the ratchet portion 21 of the ratchet 20, and the tooth 30 is provided with a first side. The first surface 32 is in the shape of a plane or a curved surface. The rear side of the tooth 30 is convexly provided with a protrusion 33. The protrusion 33 is disposed near the first surface 32. The rear surface of the 30 is provided with a second surface 34 and a third surface 35. The second surface 34 is abutted against the first circumferential surface 121. The second surface 34 is curved, and the second surface 34 is The third surface 35 is disposed between the first surface 32 and the second surface 34. The third surface 35 is disposed between the first surface 32 and the second surface 34. The third surface 35 is disposed on the bump 33 and the first surface. 34 sides of the two sides, the third surface 35 is arcuate or planar; an elastic element 40, the The elastic element 40 is elastically abutted against the first circumferential surface 121 of the second receiving slot 12, and the elastic member 40 is elastically attached to the second receiving slot 12 The third surface 35 of the tooth 30 engages the engaging tooth 31 with the ratchet portion 21, and the projection 33 of the tooth 30 limits the extent that the elastic member 40 does not come out of the third surface 35. And a limiting member 50 , the limiting member 50 is disposed at the second receiving slot 12 of the body 10 , the limiting member 50 is coupled to the first circumferential surface 121 and the first surface 32 of the tooth 30 The restraining member 50 is in the shape of a ball, and the restricting member 50 is tangentially abutted against the first peripheral surface 121. The restricting member 50 is tangentially opposed to the first surface 32. The restraining member 50 is in a non-contact relationship with the ratchet portion 21, and the restricting member 50 can be a steel material or a soft material. The restricting member 50 can be an elastic material; a buckle 60. The buckle 60 is a C-shaped ring body and is slightly elastic. The buckle 60 is received in the first buckle groove 13 and the second buckle groove 23, so that the ratchet 20 is pivoted thereon. The first pocket 11 is located.

The third embodiment is a perspective view of the structure of the ratchet wrench of the present invention. As shown in the figure, the ratchet 20 is pivotally disposed at the first receiving slot 11 of the body 10, The sleeve portion 22 is adapted to be screwed by the sleeve screwing member. The buckle ring 60 is received in the first buckle ring groove 13 and the second buckle ring groove 23 of the ratchet wheel 20 to make the ratchet wheel 20 is pivoted at the first receiving slot 11 .

Please refer to the fourth and fifth figures. The fourth drawing is a side view of the structure of the ratchet wrench of the present invention, and the fifth drawing is a cross-sectional view of the fourth drawing AA of the present invention, which is clearly shown by the figure, the ratchet The 20 series is pivotally disposed in the first receiving slot 11 , and the toothing 30 is received in the second receiving slot 12 , and the elastic component 40 is elastically biased against the first circumferential surface 121 of the second receiving slot 12 . Between the third surface 35 of the tooth 30, the engaging tooth 31 is engaged with the ratchet portion 21, and the second surface 34 of the tooth 30 is abutted against the first circumferential surface 121. The 50 series is disposed at the second receiving slot 12 and abuts against the first circumferential surface 121 and the first surface 32 of the tooth 30. When the body 10 is rotated clockwise, the ratchet 20 is rotated. .

Please refer to the sixth figure, which is a cross-sectional view of another action of the fourth drawing AA of the present invention. It can be clearly seen from the illustration that when retracting, the body 10 rotates counterclockwise, and the tooth 30 is rotated. The engaging teeth 31 are disengaged from the ratchet portion 21, and the teeth 30 are displaced to the left rear side when the teeth are retracted. The restricting member 50 limits the displacement space of the tooth 30, and the engaging teeth 31 are The ratchet portion 21 is disengaged to complete the retracting state, and the restricting member 50 may come into contact with the ratchet portion 21 when retracting.

Please refer to the seventh and eighth figures. The seventh figure is a top view of the ratchet wrench structure of the present invention, and the eighth figure is a cross-sectional view of the seventh figure BB of the present invention, which is clearly shown by the figure. A buckle ring 13 is located opposite to the second buckle groove 23, and the buckle 60 is received between the first buckle groove 13 and the second buckle groove 23 to pivot the ratchet 20 In the first tank 11 .

Continuing to refer to the ninth embodiment, the ninth embodiment is an exploded perspective view of the second embodiment of the present invention. As shown in the figure, the upper side of the second housing 12 is open, and the ratchet 20 is not provided. The second buckle ring 23 is provided with a cover body 70. The cover body 70 is disposed on the ratchet wheel 20. The opening of the cover body 70 is flush with the opening of the ratchet wheel 20, and the cover body 70 is 70. The retaining ring 60 is disposed on the first housing groove 11 and the second receiving groove 12 , and the buckle ring 60 is received on the cover body 70 and the first buckle ring groove 13 .

Please refer to the tenth drawing, which is a perspective view of a limiting member 50 according to a third embodiment of the present invention. The limiting member 50 can be a regular polyhedron, and the limiting member 50 can be a dodecahedron.

Referring to FIG. 11 , FIG. 11 is a perspective view of a limiting member 50 according to a fourth embodiment of the present invention. The limiting member 50 can be a regular hexahedron shape with a concave plane or a rounded corner at the corner. .

Please refer to FIG. 12, which is a perspective view of a limiting member 50 according to a fifth embodiment of the present invention. The limiting member 50 has a cylindrical shape, and the height of the limiting member 50 is slightly equivalent to the second. The height of the pocket 12.

In another embodiment of the present invention, the sleeve portion 22 of the ratchet 20 may be in the shape of a convex quadrangular head.

The ratchet wrench structure of the present invention has the following advantages:

As shown in FIG. 5 , the limiting member 50 is in the shape of a ball, and the limiting member 50 is received in the second receiving slot 12 , and the limiting member 50 can limit the tooth 30 . The displacement range in the second tank 12, the restriction member 50 is lower than the restriction member 50 of the conventional patent application number 104122428, and the restriction member 50 of the present invention has a lower manufacturing cost, and the restriction member 50 is basically The system is already a specification.

2. The restricting member 50 is in the shape of a ball, and the restricting member 50 is tangentially abutted between the first peripheral surface 121 and the first surface 32. The limiting member 50 is relatively easy to assemble. When the second cavity 12 is in the opposite direction, the first surface 32 can be in a planar shape or a curved shape and has the function of tangential contact.

The restricting member 50 is in the shape of a ball, the restricting member 50 is freely rotatable in the second receiving slot 12, and the restricting member 50 is tangent to the first peripheral surface 121 and the first surface 32. It can have a long service life when it is reached.

4. As shown in the second figure, the rear side of the tooth 30 includes a protrusion 33, a second surface 34 and a third surface 35. The second surface 34 is abutted against the second cavity. The elastic member 40 is elastically disposed between the first circumferential surface 121 and the third surface 35 to engage the ratcheting portion 31 with the ratchet portion 21, the bump 33 It is restricted that the elastic member 40 does not come out of the range of the third face 35.

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

Claims (14)

 A ratchet wrench structure, comprising: a body, the system is provided with a handle, the working end of the body is provided with a first receiving groove, the first receiving groove is formed by a circular groove, the first receiving groove a second receiving groove is disposed on the one side of the handle, the second receiving groove is in communication with the first receiving groove, and the diameter of the second receiving groove is smaller than the diameter of the first receiving groove, the second capacity The center of the slot is located in the first pocket, the second pocket is provided with a first circumferential surface, the first circumferential surface is curved; a ratchet is pivoted to the first volume In the groove, a peripheral portion of the ratchet wheel is provided with a ratchet portion of an annular array of teeth; a tooth is formed, the tooth system is received against a side of the second cavity, and the front side of the tooth is provided with a plurality of occlusions a tooth that engages with the ratchet portion of the ratchet wheel, the toothed side is provided with a first surface, the first surface is planar or curved, and the rear side of the toothed body is provided with a first The second surface is opposite to the first circumferential surface, the second surface is curved, and the second surface is away from the first surface, the third surface is Between the first surface and the second surface; an elastic element, the elastic element is received at the second receiving groove, and one end of the elastic element is elastically abutted on the first circumferential surface of the second receiving groove The other end of the elastic member is elastically engaged with the third surface of the tooth to engage the ratchet portion with the ratchet portion; and a limiting member is received by the second portion of the body In the groove, the limiting member abuts against the first circumferential surface and the first surface of the tooth, and the limiting member is in the shape of a ball, a regular polyhedron or a cylinder.    The ratchet wrench structure of claim 1, wherein the bottom of the first tank is provided with a flange, and the ratchet seat is seated at the flange.    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 1, wherein the first groove is provided with a first buckle groove near the opening, the first ring groove is in the shape of a circular groove, and the ratchet is provided with a second a buckle groove, the second buckle groove is opposite to the first buckle groove, and is provided with a buckle, the buckle is a C-shaped ring body and is slightly elastic, and the buckle is accommodated in the buckle ring The first buckle ring groove and the second buckle ring groove are configured to pivot the ratchet wheel at the first receiving groove.    The ratchet wrench structure of claim 1, wherein the ratcheting system is provided with a fitting portion, the fitting portion is in a polygonal groove shape for the fitting screw to be rotated, or the fitting portion can be The four corners of the convex shape.    The ratchet wrench structure of claim 1, wherein the rear side of the toothing is convexly provided with a protrusion, the protrusion is disposed near the first surface, the second surface is opposite to the first surface The bumps are apart from each other, and the third surface is disposed between the bump and the second surface, and the bump of the tooth is formed to limit the elastic element from coming out of the third surface.    The ratchet wrench structure of claim 1, wherein the third surface is curved or planar.    The ratchet wrench structure of claim 1, wherein the restricting member and the ratchet portion are in contact with each other.    The ratchet wrench structure of claim 1, wherein the restricting member is in tangency against the first circumferential surface, and the restricting member is tangentially abutted from the first surface.    The ratchet wrench structure of claim 1, wherein the limiting member is made of a steel material, a soft material or an elastic material.    The ratchet wrench structure of claim 1, wherein the first receiving groove is provided with a first buckle groove at a near opening, the first buckle groove is in the shape of a circular groove, and the upper side of the second receiving groove is The cover system is disposed on the ratchet, the opening of the cover is flush with the opening of the ratchet, and the cover system is received in the first receptacle and the second The retaining ring is provided with a buckle ring, and the buckle ring has a C-shaped ring body and is slightly elastic. The buckle ring is disposed on the cover body and the first buckle ring groove.    The ratchet wrench structure of claim 1, wherein the restricting member is in the form of a regular dodecahedron if the restricting member is in the form of a regular polyhedron.    The ratchet wrench structure of claim 1, wherein the corner of the restricting member is provided with a concave plane or a rounded shape.    The ratchet wrench structure according to claim 1, wherein if the restricting member is in the shape of a cylinder, the height of the restricting member is slightly equal to the height of the second receiving groove.