TWI500485B - Ratchet wrench structure - Google Patents

Description

Ratchet wrench structure

The present invention relates to a tool or tabletop device that does not include fastening, attachment, disassembly, or clamping, particularly in relation to a wrench.

Wrenches are common hand tools in the industry today. Various types of wrenches have been developed depending on the purpose or condition of use. In the case of limited space, the user often has inconvenience caused by the angle of rotation by means of a conventional wrench lock screw. In addition, the work efficiency is affected. Therefore, the industry has developed a ratchet wrench that overcomes the user's action of repeatedly lifting the wrench and arranging the wrench on the nut due to the one-way rotation of the wrench, but the ratchet wrench structure is generally used. Too complicated, the manufacturing cost is increased in the case of a large number of wrench members.

As shown in FIG. 1 to FIG. 3 , the structure of the conventional ratchet wrench includes: a body 10 is provided with a first receiving groove 11 , two second receiving slots 12 , a first notch 13 , a first plane 141 , and a buckle a slot 14; a ratchet 20 is provided with a second notch 21, a second plane 22 and a concave ring groove 23; the two teeth 30 are respectively provided with a plurality of engaging teeth 31, a lower abutting surface 32 and an upper abutting surface 33; The first buckle 50 is disposed between the first plane 141 and the second plane 22, and the first buckle 50 is provided with a third gap on the side of the first buckle 50. The first retaining portion 501 is disposed at each of the second recesses 12, and the first retaining portion 501 is fastened to the lower abutting surface 32; a second retaining ring 51 is fastened to the second retaining ring 51. Between the buckle groove 14 and the concave ring groove 23, a fourth notch is provided on one side of the second buckle 51, and the second buckle 51 is The second limiting portion 511 is disposed at each of the second receiving slots 12, and the second limiting portion 511 is opposite to the upper abutting surface 33. 30 is not released from the second pocket 12 by the restriction of the first buckle 50 and the second buckle 51. However, the ratchet wrench needs to be respectively abutted between the upper abutting surface 33 and the lower abutting surface 32 by the first limiting portion 501 and the second limiting portion 511 of the two buckles, so as to prevent each of the teeth 30 from coming off. Outside the second pocket 12, the manufacturing cost of the ratchet wrench is increased in the case of too many positioning structural components.

In view of this, the inventors have devoted themselves to research and intensively conceived, and after a number of research and development trials, finally invented a ratchet wrench structure.

The present invention provides a ratchet wrench structure, the main purpose of which is to reduce the number of conventional ratchet wrench positioning structural components, resulting in a high manufacturing cost.

To achieve the foregoing objective, the present invention provides a ratchet wrench structure, comprising: two turbulence groups, each turbulent group consisting of a rafter, a fixing member and an elastic member, the rafter comprising a connecting surface and an actuation a side of the connecting surface is adjacent to an actuating surface, and the other side of the connecting surface is adjacent to the abutting surface, and the other side of the actuating surface is connected to the other side of the abutting surface Adjacent, the movable surface of the rafter is provided with a plurality of card dents, and an elastic grooving groove is formed at one end edge of the actuation surface, and the connecting surface of the rafter defines an elastic member groove; the fixing member includes a connecting surface and an actuation a side of the connecting surface is adjacent to an actuating surface, and the other side of the connecting surface is adjacent to the abutting surface, and the other side of the actuating surface is connected to the other side of the abutting surface Adjacent to the connecting surface of the fixing member, an elastic member groove is defined, and one end of the actuating surface of the fixing member defines a resilient grooving groove; one end of the elastic member is fixedly inserted into the elastic member groove of the rafter, and the elastic member is The other end is fixedly inserted into the elastic member groove of the fixing member; A wrench body has a handle, and one end of the handle extends from two opposite crotch portions. The two opposite crotch portions have a ratchet receiving groove therein. The ratchet receiving groove has a groove at the periphery thereof, and the ratchet receiving groove defines two swinging portions. The accommodating groove is arranged, and the two swaying groups are respectively disposed in the accommodating group accommodating groove, and the abutting faces of the tweezer and the fixing member of the two swaying groups are abutted against the swaying group accommodating groove; a ratchet, The ratchet wheel is pivotally disposed in the ratchet member receiving groove, and one end of the ratchet wheel extends outwardly from a flange portion, and the outer peripheral edge of the ratchet wheel is provided with a plurality of ratchet teeth, and the ratchet gears are arranged in a ring shape and are engaged with the card The elastic engagement of the outer peripheral edge of the ratchet is opposite to the end of the flange portion. The inner circumference of the ratchet is provided with a plurality of actuating teeth; an elastic buckle is formed in an arc shape, and the elastic buckle is fastened to the elastic buckle. The slot, by the outer edge of the elastic buckle abutting against the elastic buckle groove of the latch and the fixing member, prevents the swaying group from coming out of the swaying group accommodating groove.

The invention can simultaneously position the ratchet wheel and all the rafters and the fixing members by means of an elastic buckle, thereby reducing the number of internal components of the ratchet wrench and effectively reducing the manufacturing cost of the wrench.

"Knowledge Technology"

10‧‧‧ an ontology

11‧‧‧First slot

12‧‧‧Second capacity

13‧‧‧ first gap

14‧‧‧ buckle groove

141‧‧‧ first plane

20‧‧‧ratchet

21‧‧‧ second gap

22‧‧‧ second plane

23‧‧‧ concave ring groove

30‧‧‧ teeth

31‧‧‧Bite teeth

32‧‧‧Affiliated

33‧‧‧Affiliated

40‧‧‧Flexible components

50‧‧‧First buckle

51‧‧‧second buckle

501‧‧‧First Limitation

511‧‧‧Second Limitation

"this invention"

60‧‧‧掣动组

61‧‧‧掣子

611‧‧‧ connection surface

612‧‧‧ actuation surface

613‧‧‧ by face

62‧‧‧Fixed parts

63‧‧‧Flexible parts

631‧‧‧elastic slot

64‧‧‧ card tooth

65‧‧‧Flexible groove

70‧‧‧Wrench body

71‧‧‧Hands

72‧‧‧颚

73‧‧‧ratchet housing

74‧‧‧掣动组容槽

75‧‧‧ trench

80‧‧‧elastic buckle

90‧‧‧ratchet

91‧‧‧ ratchet teeth

92‧‧‧Flexible buckle groove

93‧‧‧Working teeth

94‧‧‧Flange

Figure 1 is an exploded view of a conventional ratchet wrench.

Figure 2 is a side view of a conventional ratchet wrench ratchet.

Figure 3 is a side view of a conventional ratchet wrench tooth.

Figure 4 is an exploded view of the structure of the ratchet wrench of the present invention.

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

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

Figure 7 is a cross-sectional view taken along line A-A of Figure 4.

Figure 8 is a cross-sectional view taken along line B-B of Figure 4;

Figure 9 is a top plan view of the operation of the ratchet wrench structure of the present invention.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and effects of the present invention, the following is a detailed description of the following: a preferred embodiment of the ratchet wrench structure of the present invention, for example, 4th to The figure 9 includes: two swaying groups 60, each of which is composed of a scorpion 61, a fixing member 62 and an elastic member 63. The scorpion includes a connecting surface 611 and an operating surface 612. And abutting surface 613, one side of the connecting surface 611 is adjacent to an operating surface 612, and the other side of the connecting surface 611 is adjacent to an abutting surface 613, and the other side 612 of the operating surface is opposite to the abutting surface The other side 613 is adjacent to the other side. The engaging surface 612 of the latch 61 is provided with a plurality of latching teeth 64. A resilient latching groove 65 is defined at one end of the actuating surface 612. The connecting surface 611 of the latch 61 opens a flexible state. The fixing member 62 includes a connecting surface 611, an operating surface 612 and an abutting surface 613. One side of the connecting surface 611 is adjacent to an operating surface 612, and the other side of the connecting surface 611 is adjacent to the adjacent surface. The other side of the actuating surface 612 is adjacent to the other side of the abutting surface 613, and the connecting surface 611 of the fixing member 62 is opened. The elastic member groove 631 defines an elastic grooving groove 65 at one end of the actuating surface 612 of the fixing member 62. One end of the elastic member 63 is fixed to the elastic member groove 631 of the scorpion 61, and the other end of the elastic member 63 The elastic body slot 631 is fixedly inserted into the fixing member 62. The wrench body 70 has a handle 71. The handle 71 extends at one end to the two opposite crotch portions 72. The two opposite crotch portions 72 have a ratchet receiving groove 73 therein. The circumference of the ratchet accommodating groove is further provided with a groove 75. The ratchet accommodating groove 73 defines two swaying group accommodating grooves 74, and the two swaying groups 60 are respectively disposed. In the swaying group accommodating groove 74, the abutting surface 613 of the scorpion 61 of the two swaying groups 60 and the fixing member 62 abuts against the swaying group accommodating groove 74; a ratchet 90, the ratchet 90 The ratchet member 90 is pivotally disposed at a flange portion 94. The outer peripheral edge of the ratchet 90 is provided with a plurality of ratchet teeth 91. The ratchet teeth 91 are arranged in a ring shape and The latching teeth 64 are engaged with the outer peripheral edge of the ratchet 90, and an end of the flange portion 94 defines an annular elastic buckle groove 92. The inner peripheral edge of the ratchet wheel is provided with a plurality of actuating teeth 93, and the elastic buckle groove 92 is coupled with the elastic buckle The position of the groove 65 is relatively positive; a resilient buckle 80 is formed in a C-shaped arc shape, and the elastic buckle 80 is buckled to the elastic buckle groove 92 and the groove 75, and the outer edge of the elastic buckle 80 is locked in the groove The slot 75 and the elastic buckle groove 65, and the inner edge clamps the elastic buckle groove 92 of the ratchet wheel 90, thereby positioning the ratchet wheel 90 on the ratchet receiving groove 73 of the wrench body 70, and the elastic buckle 80 is used therein. The outer edge abuts against the elastic sipe 65 of the scorpion 61 and the fixing member 62 to prevent the swaying group 60 from coming out of the swaying group accommodating groove 74, so that the ratchet wheel 90 is positioned by a single elastic buckle 80 and The object of the two movable detents 60 group.

9 is a top view of the structure of the ratchet wrench structure of the present invention. When the wrench is rotated in the counterclockwise direction, the swaying group 60 is disposed in the swaying group accommodating groove 74 of the wrench body 70. The set 60 will rotate in the counterclockwise direction with the wrench body 70, and the ratchet 90 is still stationary. When the tilting group 60 rotates counterclockwise, the latching teeth 64 of the latch 61 and the ratchet 90 The engaging surface of the ratchet teeth 91 generates a relatively clockwise driving force, so that the latch 61 of the tilting group 60 moves in a clockwise direction to compress the elastic member 63, and the elastic member 63 is offset by the kinetic energy absorbed by the compression. The kinetic energy of the wrench body 70 rotating counterclockwise is such that the latching teeth 64 of the latch 61 and the ratchet 90 and the teeth 91 are not continuously engaged to generate a jump tooth, so the wrench body 70 rotates counterclockwise. When the ratchet 90 is stationary, it produces an idling effect; When the wrench rotates in the clockwise direction, the latch 61 is fixed due to the space limitation of the swaying group accommodating groove 74, so that the ratchet teeth 91 of the ratchet 90 are engaged with the latch 61 of the cymbal 61. The engagement of 64 achieves the purpose of driving the ratchet 90 to rotate clockwise, thereby generating the effect of one-way rotation.

As can be seen from the above, the ratchet wrench structure of the present invention is buckled to the elastic buckle groove 92 of the ratchet 90 through a resilient buckle 80. The outer side of the elastic buckle 80 abuts against the elastic buckle groove 65 to simultaneously locate all the latches 61 and the fixing member. For the purpose of the 62 and the ratchet 90, the prior art requires two buckles to secure the absence of each of the forceps 30 and the ratchet 20. Significantly reduce the number of components used to effectively reduce costs.

It can be seen from the foregoing that the elastic buckle 80 of the ratchet wrench structure of the present invention is formed into a C-shaped arc shape, which is different from the functional design of the prior art buckle having a plurality of notches, and reduces the additional cost of processing in the manufacture of the elastic buckle.

60‧‧‧掣动组

61‧‧‧掣子

611‧‧‧ connection surface

612‧‧‧ actuation surface

613‧‧‧ by face

62‧‧‧Fixed parts

63‧‧‧Flexible parts

631‧‧‧elastic slot

64‧‧‧ card tooth

65‧‧‧Flexible groove

70‧‧‧Wrench body

71‧‧‧Hands

72‧‧‧颚

73‧‧‧ratchet housing

74‧‧‧掣动组容槽

75‧‧‧ trench

80‧‧‧elastic buckle

90‧‧‧ratchet

91‧‧‧ ratchet teeth

92‧‧‧Flexible buckle groove

93‧‧‧Working teeth

94‧‧‧Flange

Claims (16)

A ratchet wrench structure includes: a wrench body having a handle, one end of the handle extending from two opposite crotch portions, wherein the two opposite crotch portions have a ratchet receiving groove, and the ratchet receiving groove defines two swaying group accommodating grooves, The ratchet accommodating groove is further provided with a groove at the periphery of the ratchet accommodating groove; the ratchet wheel is pivotally disposed in the ratchet member receiving groove, the outer peripheral edge of the ratchet wheel is provided with a plurality of ratchet teeth, and the outer peripheral edge of the ratchet wheel is provided with an elastic buckle groove, The inner circumference of the ratchet is provided with a plurality of movable teeth; the two movable groups are composed of a pair of tweezers, a fixing member and an elastic member. The periphery of the tweezers is provided with an actuating surface, and the actuating surface is provided with a plurality of cards. a latching tooth that engages with the ratchet tooth and defines a resilient grooving groove at an edge of the actuating surface; the two ends of the elastic member are respectively mounted on the rafter and the fixing member, so that the cymbal of the cymbal The elastic preloading force is applied to the ratchet tooth; the elastic buckle is fastened to the elastic buckle groove and the groove, and the outer edge of the elastic buckle is engaged with the groove and the elastic buckle groove, and The inner edge clamps the elastic buckle groove of the ratchet, thereby the ratchet The receiving groove is located in the ratchet wrench of the body, and by the resilient snap against the outer edge of the resilient retaining pawl of the groove and the end of the fixing member, preventing the extrusion group detent catch receiving groove set. The ratchet wrench structure of claim 1, wherein one end of the ratchet extends outwardly from a flange portion, and an outer peripheral edge of the ratchet defines an elastic buckle groove opposite to an end of the flange portion. The ratchet wrench structure of claim 1, wherein the latch comprises a connecting surface, an actuating surface and an abutting surface, one side of the connecting surface is adjacent to the actuating surface, and the connecting surface is another One side is adjacent to the abutting surface, and the other side of the acting surface is adjacent to the other side of the abutting surface, and the connecting surface of the rafter defines an elastic member groove; the fixing member includes a connecting surface and an actuation a side of the connecting surface is adjacent to an operating surface, and the other side of the connecting surface is adjacent to the abutting surface. The other side of the actuating surface is adjacent to the other side of the abutting surface, and the connecting surface of the fixing member defines an elastic member groove. The actuating surface of the fixing member defines an elastic buckle groove for elastic buckle; the elastic member One end of the elastic member is fixedly inserted into the elastic member groove of the scorpion, and the other end of the elastic member is fixedly inserted into the elastic member groove of the fixing member. The ratchet wrench structure of claim 1, wherein the elastic member is a spring. The ratchet wrench structure of claim 3, wherein the elastic member groove of the tweezers and the elastic member groove of the fixing member are aligned with each other. The ratchet wrench structure of claim 3, wherein the elastic buckle groove and the elastic buckle groove position are aligned with each other. A ratchet wrench structure includes: a wrench body having a handle, one end of the handle extending from two opposite crotch portions, wherein the two opposite crotch portions have a ratchet receiving groove, and the ratchet receiving groove defines two swaying group accommodating grooves, The ratchet accommodating groove is further provided with a groove at the periphery of the ratchet accommodating groove; the ratchet wheel is pivotally disposed in the ratchet member receiving groove, the outer peripheral edge of the ratchet wheel is provided with a plurality of ratchet teeth, and the outer peripheral edge of the ratchet wheel is provided with an elastic buckle groove, The inner circumference of the ratchet is provided with a plurality of movable teeth; the two movable groups are composed of a pair of tweezers, a fixing member and an elastic member. The periphery of the tweezers is provided with an actuating surface, and the actuating surface is provided with a plurality of cards. a latching tooth that engages with the ratchet tooth and defines a resilient grooving groove at one end of the actuating surface; a resilient grooving groove is defined at one end of the fixing member; a fixing member, the latching teeth of the latch have an elastic pre-force for pushing the ratchet teeth; an elastic buckle, the elastic buckle is fastened to the elastic buckle slot and the groove, and the outer edge of the elastic buckle is clamped In the groove and the elastic buckle groove, and the inner edge is clamped Elastic catching groove of the ratchet, whereby the ratchet The wheel is positioned on the ratchet receiving groove of the wrench body, and the elastic buckle outer edge abuts against the elastic buckle groove of the latch and the fixing member to prevent the swaying group from coming out of the swaying group accommodating groove. The ratchet wrench structure of claim 7, wherein one end of the ratchet extends outwardly from a flange portion, and an outer peripheral edge of the ratchet defines an elastic buckle groove opposite to an end of the flange portion. The ratchet wrench structure of claim 7, wherein the latch comprises a connecting surface, an actuating surface and an abutting surface, one side of the connecting surface is adjacent to the actuating surface, and the connecting surface is another One side is adjacent to the abutting surface, and the other side of the acting surface is adjacent to the other side of the abutting surface, and the connecting surface of the rafter defines an elastic member groove; the fixing member includes a connecting surface and an actuation a side of the connecting surface is adjacent to an actuating surface, and the other side of the connecting surface is adjacent to the abutting surface, and the other side of the actuating surface is connected to the other side of the abutting surface Adjacent to the connecting surface of the fixing member, an elastic member groove is defined; one end of the elastic member is fixedly inserted into the elastic member groove of the rafter, and the other end of the elastic member is fixedly inserted into the elastic member groove of the fixing member . The ratchet wrench structure of claim 7, wherein the elastic member is a spring. The ratchet wrench structure of claim 9, wherein the elastic member groove of the tweezers and the elastic member groove of the fixing member are aligned with each other. The ratchet wrench structure of claim 7, wherein the elastic buckle groove and the elastic buckle groove position are aligned with each other. A ratchet wrench structure comprising: two turbulence groups, each turbulent group consisting of a rafter, a fixing member and an elastic member, the rafter comprising a connecting surface, an actuating surface and a resisting surface, One side of the connecting surface is adjacent to an operating surface, and the other side of the connecting surface is adjacent to the abutting surface, and the other side of the acting surface is adjacent to the other side of the abutting surface, and the working surface of the rafter a plurality of card teeth are provided, and a elastic buckle is opened at one end edge of the actuating surface a groove, the connecting surface of the rafter defines an elastic member groove; the fixing member comprises a connecting surface, an actuating surface and a bearing surface, one side of the connecting surface is adjacent to an operating surface, and the other side of the connecting surface Adjacent to the abutting surface, the other side of the actuating surface is adjacent to the other side of the abutting surface, and the connecting surface of the fixing member defines an elastic member groove, and an elastic buckle is formed at one end edge of the acting surface of the fixing member One end of the elastic member is fixedly inserted into the elastic member groove of the rafter, and the other end of the elastic member is fixedly inserted into the elastic member groove of the fixing member; a wrench body has a handle, and the handle extends at one end Two opposite crotch portions are disposed, the two opposite crotch portions have a ratchet receiving groove, and the periphery of the ratchet receiving groove defines two oscillating group accommodating grooves, and the ratchet accommodating groove has a groove at the periphery thereof; a ratchet, the ratchet The hub is disposed in the ratchet member receiving groove, and one end of the ratchet extends outwardly from a flange portion, and the outer peripheral edge of the ratchet wheel is provided with a plurality of ratchet teeth, and the ratchet teeth are arranged in an annular shape and mesh with the latching teeth The outer circumference of the ratchet opens a ring groove opposite to the end of the flange portion. The inner circumference of the ratchet wheel is provided with a plurality of actuating teeth; an elastic buckle is formed in an arc shape, and the elastic buckle is fastened to the elastic buckle groove and the groove, and the outer edge of the elastic buckle abuts against the forceps and the fixing member The elastic buckle groove prevents the swaying group from coming out of the swaying group accommodating groove. The ratchet wrench structure of claim 13, wherein the elastic member is a spring. The ratchet wrench structure of claim 13, wherein the elastic member groove of the tweezers and the elastic member groove of the fixing member are aligned with each other. The ratchet wrench structure of claim 13, wherein the elastic buckle groove and the elastic buckle groove are aligned with each other.