TWM566644U - Directional mechanism for ratchet wrench - Google Patents

Abstract

An orientation mechanism includes: a button having an extension portion; a disc having a matching hole and two hook portions, the engagement hole being passed by the extension portion to rotate the disc and the dial in the same direction; and an auxiliary member comprising: A transverse piece having two side arms; a longitudinal piece connected to the transverse piece and rotatable in the same direction, the longitudinal piece having two slanting plates, which are combined into an arched piece. When the orientation mechanism is configured with a ratchet wrench, the ratchet wrench has a hollow head for assembling a ratchet and two jaws. The engagement hole of the dial and the disc is passed by a bolt mounted on the head, and the transverse piece is below the extension and the disc, so that the two side arms are on both sides of the bolt. The longitudinal piece supports the swash plate to contact the corresponding claw and bite the ratchet.

Description

Orientation mechanism for ratchet wrench

This creation relates to the field of tools, and in particular to an orientation mechanism for a ratchet wrench.

A ratchet wrench equipped with a dialing structure is found in Taiwan Patent No. M537960, China No. 206383086 and German No. 202016105779. The toggle structure has a disc and an auxiliary member. The disc has an arc-shaped notch, two hook portions on both sides of the notch, and a shaft portion standing on the side of the disc, and the first surface and the second surface are connected by a circular arc surface, the first The face and the second face are combined into a vertex. When the auxiliary member surrounds the periphery of the shaft portion, the auxiliary member has two flat portions and two curved surface portions, and the flat portions are connected to each other, and the joints defining the two flat portions are gathered portions, and the curved surface portions are connected to the flat portion and extend to the circumferential direction. The sides of the opening are so as to surround the gathering place of the two plane portions, so that the two curved surface portions surround the circular arc surface. When the toggle structure is mounted on a ratchet wrench, the auxiliary member has an auxiliary dialing action on the double-prong mechanism of the ratchet wrench to achieve a complete meshing or occlusion effect.

In addition, Taiwan Patent No. M546884, China No. 206967376 and German No. 202017102185 are improved ratchet wrenches, the technical feature of which is that a disc and an auxiliary member are placed in the actuating chamber of the wrench to make the disc and the disc The buttons are combined. The disc has two hook portions and a shaft portion, and the shaft portion has a first inclined surface and a second inclined surface. The auxiliary member is sleeved outside the shaft portion and has a first flat plate and a second flat plate. When the hook hooks one of the claws disposed on the wrench, the claw clamps the first flat plate with the first inclined surface, and the other claw is used by the second flat plate The elastic member pushes and bites the ratchet, and determines that the ratchet wrench does not work in one direction, and reversely drives a workpiece to rotate.

The main purpose of the ratchet wrench provided by the present invention is to adopt a new orientation mechanism, and achieve the same effect by simple construction, which has the advantages of quick assembly and low cost.

Due to the above object, the orientation mechanism of the present invention comprises: a button having an extension portion; a disc having a matching hole and two hook portions, the matching hole being passed through the extension portion to make the disc and the dial Rotating in the same direction; and an auxiliary member comprising: a transverse piece having two side arms; and a longitudinal piece connected to the transverse piece and rotatable in the same direction, the longitudinal piece having two inclined plates and being combined into an arched piece .

When the orientation mechanism is provided with a ratchet wrench, the ratchet wrench has a hollow head for assembling a ratchet and two claws, and the engagement hole of the dial and the disc is passed by a bolt mounted on the head. The transverse piece is below the extension and the disc with the two side arms on either side of the bolt. The longitudinal piece supports the swash plate to contact the corresponding claw, providing the force required for the claw to bite the ratchet.

Wherein the transverse piece and the longitudinal piece are joined together by a connecting portion. Moreover, the disc has an activity chamber, and the hooks are on both sides of the activity room.

In addition, the extension protrudes from the bottom of the dial and has a concave curved surface. The engagement hole is composed of a semicircular portion and a polygonal portion. When the extension portion enters the polygonal portion, the bolt passes through the concave curved surface of the extension portion. Furthermore, the extension portion has two positioning portions, and one of the two positioning portions is caught by a ball attached to the head, so that the dial is stationary.

In this way, the ratchet wrench of the present invention adopts a new orientation mechanism, and achieves the same use effect by a simple structure, and has the advantages of quick assembly and low cost.

In order to make the above objects, features and advantages of the present invention more comprehensible, one or more preferred embodiments are described in detail with the accompanying drawings.

10, 100‧‧‧ Ratchet Wrench

11, 110‧‧‧ ontology

12‧‧‧Handle

120‧‧‧Opening wrench

13, 130‧‧‧ head

131‧‧‧ upper end

132‧‧‧ lower end

14‧‧‧ accommodating room

141‧‧‧ first through hole

142‧‧‧Second through hole

143‧‧‧Circle

15‧‧‧Card Room

16‧‧‧Operating room

161‧‧‧Assembled holes

162‧‧‧ platform

163‧‧‧Combination hole

164‧‧‧Positioning holes

165‧‧‧ bolt

166‧‧ ‧ spring

167‧‧‧ sphere

168‧‧‧ shallow groove

20, 200‧‧‧ ratchet

21‧‧‧ teeth

22‧‧‧ cylindrical section

23‧‧‧ collar

24‧‧‧ buckle

25‧‧‧ release button

26‧‧‧Multi-column

27‧‧‧ steel balls

28‧‧‧Axis hole

29‧‧‧Flexible parts

30‧‧‧ claws

31‧‧‧Compressed spring

32‧‧‧Interface

33‧‧‧ short column

34‧‧‧Spring groove

40‧‧‧Orientation

41‧‧‧ dial

42‧‧‧ center hole

43‧‧‧Extension

44‧‧‧ concave surface

45‧‧‧ Positioning Department

50‧‧‧ discs

51‧‧‧ fit hole

52‧‧‧ Semi-circle

53‧‧ ‧Multilateral Department

54‧‧‧ activity room

55‧‧‧ hook

60‧‧‧Auxiliary parts

61‧‧‧Connecting Department

62‧‧‧ Horizontal film

63‧‧‧ side arm

64‧‧‧Longitudinal

65‧‧‧ sloping plate

66‧‧‧ angle

Figure 1 is a perspective view of a first embodiment of the ratchet wrench of the present invention.

Figure 2 is a cross-sectional view of a portion of the body.

Figure 3 is a partial cross-sectional view of the ratchet wrench after assembly.

Figure 4 is a configuration diagram of the ratchet, claw and orientation mechanism.

Figure 5 is a top view of the ratchet, claw and orientation mechanism.

Figure 6 is a layout view of the ratchet, claw and auxiliary member on the body.

Figure 7 is a perspective view of the dial.

Figure 8 is a perspective view of the disc.

Figures 9 and 10 are plane and perspective views of the auxiliary member.

Figure 11 is a perspective view of a second embodiment of the ratchet wrench of the present invention.

Figures 1 and 2 depict a first embodiment of a ratchet wrench 10. Specifically, the ratchet wrench 10 has a body 11 on which a ratchet 20, two jaws 30 and a direction-directing mechanism 40 are disposed.

The body 11 is combined with a handle 12, and the handle 12 and a head 13 are at different ends of the body 11. The head 13 has a receiving chamber 14 , a cassette chamber 15 and an operating chamber 16 . The cassette chamber 15 is an arcuate groove. In the middle of the receiving chamber 14 and the operating chamber 16 , the three are in communication with each other. The portion 13 is a hollow structure. The accommodating chamber 14 leads to the upper end surface 131 and the lower end surface 132 of the head 13 via a first through hole 141 and a second through hole 142. The operation chamber 16 is connected to the upper end surface 131 of the head 13 via an assembly hole 161. A shallow groove 168 is formed in the bottom of the operation chamber 16, and a coupling hole 163 and a positioning hole 164 are formed in the shallow groove 168. Within the bonding hole 163 A threaded hole is preferred to lock a bolt 165. The locating aperture 164 receives a spring 166 and a ball 167 that provides the force required for the ball 167 to expose the locating aperture 164.

In addition, the head 13 also has a platform 162 and a ring groove 143. The platform 162 has a height difference from the upper end surface 131 of the head 13 and thus leads to the open end of the assembly hole 161. This annular groove 143 is formed in the wall surface of the head portion 13 surrounding the accommodation chamber 14.

As shown in Figures 3 and 4, the ratchet 20 has a plurality of teeth 21, two cylindrical segments 22, a set of rings 23, a release button 25 and a polygonal post 26. These teeth 21 continuously protrude from the outer surface of the ratchet wheel 20 in the circumferential direction. The cylindrical segments 22 have a smaller diameter and protrude from the upper and lower ends of the ratchet 20, respectively. When the ratchet 20 is placed in the accommodating chamber 14, one of the two cylindrical segments 22 is inserted into the first through hole 141 of the head 13, and the other cylindrical segment 22 is inserted into the collar 23, and is inserted into the collar 23 and the annular groove 143 by a buckle 24. In this case, the ratchet 20 can be prevented from leaving the head 13 without interfering with the free rotation of the ratchet 20 relative to the head 13. The polygonal column 26 extends axially outwardly from the cylindrical section 22, and its interior is penetrated by a shaft hole 28 through the ratchet 20, allowing a steel ball 27 to be disposed on the polygonal column 26 to be movable. When the ratchet 20 is coupled to the head 13, the polygonal post 26 extends beyond the lower end surface 132 of the head 13. The release button 25 is inserted into the shaft hole 28 of the ratchet 20, which urges the steel ball 27 to partially expose the single side of the polygonal column 26 to a normal state. The shaft holes 28 are class holes of different diameters sufficient to receive an elastic member 29 like a compression spring. The elastic member 29 pushes the release button 25 to expose the upper end surface 131 of the head portion 13, and the coupling relationship of the release button 25 against the steel ball 27 is obtained. When the release button 25 is forced to retreat into the shaft hole 28, the elastic member 29 is pressed and deformed by the release button 25, and the resisting relationship between the steel ball 27 and the release button 25 is released, which helps the steel ball 27 to retreat into the polygonal column 26. .

As seen from the third to sixth figures, the claws 30 are inserted into the cassette chamber 15 of the head 13 by the same compression spring 31. The two ends of the compression spring 31 respectively enter a spring groove 34 formed in the claw 30. The compression spring 31 pushes the two claws 30, and each of the claws 30 is guided by the head 13 to be guided by the wall of the cassette chamber 15 to be displaced toward the ratchet 20. . The two jaws 30 are symmetrical in shape but in opposite directions. Each The pawl 30 has an engagement surface 32 and a short post 33 formed on the top surface of the pawl 30. The engagement surface 32 selectively bears the corresponding tooth 21 at the pawl 30 facing the ratchet 20.

The orientation mechanism 40 is composed of a button 41, a disc 50 and an auxiliary member 60.

As shown in FIG. 7, the button 41 has a center hole 42, an extending portion 43, and a force receiving portion 46. The extension portion 43 is a non-circular block that protrudes from the bottom of the dial 41. The extending portion 43 has a concave curved surface 44 and two positioning portions 45. The concave curved surface 44 is formed on the side of the extending portion 43 along the diameter of the center hole 42, and each positioning portion 45 is a hole that is trapped in the bottom surface of the extending portion 43. The force receiving portion 46 extends outward from the outer circumference of the dial 41.

In Fig. 8, the disc 50 has a substantially rectangular design with a matching hole 51 and a movable chamber 54. The engagement hole 51 extends through the disc 50 from top to bottom, and is composed of a semicircular portion 52 and a polygonal portion 53. The diameter of the semicircular portion 52 is substantially equal to the diameter of the bolt 165 (see FIG. 5). The shape of 53 corresponds to the contour of the extension portion 43 (see Fig. 5). The movable chamber 54 is a groove which is formed on the side of the disc 50 from the bottom up so that the bottom of the disc 50 has two hook portions 55. These hooks 55 are similar in shape but opposite in direction, just to the side of the event room 54.

As seen from Figures 9 and 10, the auxiliary member 60 has a connecting portion 61 which connects a transverse piece 62 to a longitudinal piece 64. The transverse piece 62 is generally U-shaped with two side walls 63 spaced apart by a distance. The longitudinal piece 64 is perpendicular to the transverse piece 62, and its two sides are respectively bent into a slanting plate 65, which are combined into an arched piece. Therein, each of the sloping plates 65 and the longitudinal plates 64 form an included angle 66 of approximately 120°.

Referring back to Figures 3-6, the specific structure in which the orientation mechanism 40 is assembled to the body 11 is further described. In the figure, the dial 41 enters the assembly hole 161, so that the extension portion 43 reaches the depth of the operation chamber 16, because the bolt 165 passes through the central hole 42 and the concave curved surface of the extension portion 43. 44, so the dial 41 rotates around the bolt 165, but does not easily leave the body 11. At this moment, the force receiving portion 46 is located above the platform 162, and determines the direction in which the knob 41 rotates relative to the body 11. In addition, one of the two positioning portions 45 receives the ball 167, and the dial 41 is stationary.

The disc 50 is placed transversely in the operating chamber 16 of the body 11 while being over the bolt 165 and the extension 43. In other words, the extension portion 43 enters the polygonal portion 53 of the engagement hole 51, so that the disc 50 is driven by the push button 41, and is rotatable relative to the body 11 in the operation chamber 16. The bolt 165 passes through the semicircular portion 52 of the engaging hole 51 and the concave curved surface 44 of the extending portion 43, and the supporting disc 50 rotates in the same direction as the dial 41 surrounds the bolt 165. Thus, the hooks 55 enter the cassette chamber 15 of the body 11, and can hook one of the short posts 33 located in the movable chamber 54 to determine that the two jaws 30 bite the teeth 21 or away from the ratchet 20.

The auxiliary member 60 is inserted into the shallow groove 168 by the transverse piece 62 until it abuts against the bolt 165, so that the horizontal piece 62 is located below the extending portion 43 and the disk 50. At this moment, the side arms 63 are on both sides of the bolt 165, and do not affect the engagement relationship between the ball 167 and the positioning portion 45. The longitudinal piece 64 is supported by the transverse piece 62 to stand within the cassette chamber 15 of the body 11, maintaining the two slanting plates 65 in contact with the back of the jaws 30.

It should be noted that the disc 50 hooks the short post 33 with one of the two hooks 55, and the corresponding claws 30 (i.e., below the fifth or sixth drawing) are separated from the ratchet 20 to drive the longitudinal piece 64 to yaw with the transverse piece. 62 is rotatable about the bolt 165 in the shallow groove 168 while providing the slanting plate 65 to urge the other (i.e., above the fifth or sixth figure) jaws 30 to engage the force required by the engaging surface 32 to bite the teeth 21.

Conversely, when the disc 50 is rotated at a certain angle, the other hooks 55 can be used to hook the other short posts 33, and the different claws 30 are selected to maintain the meshing relationship with the teeth 21, thereby changing the ratchet 20 relative to the head 13. The direction of rotation.

11 is a second embodiment of the ratchet wrench 100, the structure of which is substantially the same as that of the first embodiment, the difference being the functional shape of the body 110: first, the body 110 ratio The first embodiment is more flat.

Secondly, the body 110 has no grip but an additional feature of the open-end wrench 120.

Further, the ratchet 200 is disposed in the head 130 which is flatter than the first embodiment. The ratchet wheel 200 is a ring body, and has neither a release button nor a polygonal column and a steel ball.

Claims (5)

An orientation mechanism for a ratchet wrench, the orientation mechanism (40) comprising: a button (41) having an extension (43); a disc (50) having a matching hole (51) and two hooks (55), the engagement hole (51) is passed by the extension portion (43) to rotate the disc (50) and the dial button (41); an auxiliary member (60) comprising: a transverse piece (62), The utility model has two side arms (63); a longitudinal piece (64) connected to the transverse piece (62) for rotating in the same direction, the longitudinal piece (64) having two inclined plates (65), which are combined into an arched piece When the orientation mechanism (40) is provided with a ratchet wrench (10 or 100), the ratchet wrench (10 or 100) has a hollow head (13 or 130) for assembling a ratchet (20 or 200) and two jaws ( 30), the matching hole (51) of the dial (41) and the disc (50) is passed by a bolt (165) mounted on the head (13 or 130), and the transverse piece (62) is at the extension (43) Under the disc (50), the two side arms (63) are placed on both sides of the bolt (165), and the longitudinal piece (64) supports the swash plate (65) to contact the corresponding claw (30) to provide the claw (30) to bite. The force required for the ratchet (20 or 200). The orientation mechanism for a ratchet wrench according to claim 1, wherein the transverse piece (62) and the longitudinal piece (64) are joined together by a connecting portion (61). The orientation mechanism for a ratchet wrench according to the first aspect of the invention, wherein the disc (50) further has a movable chamber (54), the hook portions (55) being on both sides of the movable chamber (54). The orientation mechanism for a ratchet wrench according to claim 1, wherein the extension The extension portion (43) protrudes from the bottom of the dial (41) and has a concave curved surface (44); the matching hole (51) of the disc (50) is composed of a half round portion (52) and a polygonal portion (53) When the extension (43) enters the polygonal portion (53), the bolt (165) passes through the concave curved surface (44) of the extension portion (43). The orientation mechanism for a ratchet wrench according to claim 4, wherein the extension portion (43) further has two positioning portions (45), and a ball (167) mounted on the head portion (13 or 130) Jamming one of the two positioning portions (45) causes the dial (41) to stand still.