TWI830408B - Hand tool capable of changing direction - Google Patents

Abstract

A hand tool capable of changing direction includes a grip, an actuation component, a limit component, a switching member and a rotary lever. The actuation component includes an actuator seat and a positioning group. The actuator seat having a capacity slot and a pivot slot. The positioning group includes an elastomer and a positioning piece. The limit component includes a snap member and an elastic element. The snap member is connected to the pivot slot and having a snap tooth. The switching member includes a turntable and a push block. The turntable having a positioning slot for the positioning piece connect. The rotary lever having a ratchet gear. Wherein the rotary turntable for the positioning piece to be selectively embedded in one of the positioning slots, the push block can be relatively offset against the snap member to produce deflection, so that the snap teeth can snap or break away from the ratchet gear.

Description

Hand tool with switchable working direction

The present invention relates to the technology of a hand tool, in particular to a hand tool that can switch working directions.

The function of a screwdriver is mainly used to turn screws, and it is one of the essential hand tools in daily life. In addition, for the sake of convenience of use, various ratchet screwdrivers that can switch different directions have been developed on the market.

In addition, the general restriction of the direction of use of a ratchet screwdriver is achieved through the arrangement of a ratchet actuating component. The ratchet actuating component is composed of a ratchet, an elastic element, a latch block pushed by the elastic element, and a toggle portion. In actual use, the locking block is pushed by rotating the toggle part, so that the locking block can selectively lock the ratchet, thereby achieving the purpose of limiting the direction of use.

However, after long-term use of the structure of the aforementioned ratchet actuation assembly, the elastic element may experience elastic fatigue or the toggle part may not be rotated to the position, which may cause the latch block to be unable to be pushed to the desired position, causing the ratchet driver to Cannot be used normally.

In view of this, the author has devoted himself to research on the above-mentioned existing technology and cooperated with the application of academic theory to try his best to solve the above-mentioned problems, which has become the goal of the author's improvement.

One object of the present invention is to provide a hand tool that can switch the working direction, which is pivotally connected to the actuating base through the latch member, so that the latch member can produce stable deflection, and the overall internal structure can be greatly simplified.

In order to achieve the above object, the present invention is a hand tool that can switch working directions, including a handle, an actuating component, a limiting component, a switching member and a rotating rod. The actuating component is connected to the handle. , the actuating component includes an actuating seat and a positioning group. The actuating seat is provided with a receiving groove and a plurality of pivot grooves. The positioning group includes an elastic body and a positioning piece that contacts the elastic body. The elastic body is arranged on In the groove; the limit component is arranged in the actuator seat. The limit component includes a plurality of latch members and an elastic element. Each latch member is pivotally connected to each of the pivot grooves. Each latch member The member has at least one latch, one end of the elastic member is fixed on the actuator base, and the other end of the elastic member contacts each of the latch members respectively; the switching member is movably connected to the actuator base, and the switching member It has a turntable and a plurality of push blocks formed on the turntable. The turntable is provided with a plurality of positioning grooves for the positioning parts to be embedded. The rotating rod includes a rod body and a ratchet gear provided on the rod body. The rod body One end of the turntable is passed through the turntable and the actuator seat in sequence, and the ratchet gear is configured corresponding to each of the locking members; when the turntable is rotated to make the positioning member selectively embedded in one of the positioning grooves, Each of the pushing blocks can correspondingly push against each of the locking members to generate deflection, so that the locking teeth can lock or disengage from the ratchet gear.

The present invention also has the following effect. By utilizing the configuration of each latch member, the elastic element and the actuating seat, each contact piece can stably contact one end of each latch member and be pivoted through the other end of each latch member. In each pivot groove, each latch member can produce stable deflection, thereby avoiding various undesirable situations such as jamming, tripping or failure to reset the latch teeth due to excessive displacement.

1: Hand tool that can switch working direction

10: Grip

20: Actuation assembly

21: Actuator seat

22:Sleeve

221:Tank

222: Pivot slot

223: convex strip

224:Actuating slot

225:Inner wall surface

226: Stop surface

23:Tube body

231: Molding

25: Positioning group

26: Elastomer

27: Positioning parts

30:Limit component

31:Latching component

311: stuck teeth

312:Pivot

313:Sag area

32: Elastic element

321:Gutter

322:Butt piece

40:Switch components

41:Turntable

42: Push block

43: Positioning slot

50: Rotary rod

51: Rod body

52:ratchet gear

53:Tool head

54:Combining end

55:Buckle groove

60:Buckle

Figure 1 is an appearance view of a hand tool combination with switchable working directions according to the present invention.

Figure 2 is an exploded perspective view of the actuating component, limiting component, switching member and rotating rod of the present invention.

Figure 3 is a combined cross-sectional view of the actuating component, limiting component, switching member and rotating rod of the present invention.

Figure 4 is a cross-sectional view (1) of the actuating component, limiting component, switching member and rotating rod in use according to the present invention.

Figure 5 is a cross-sectional view (2) of the actuating component, limiting component, switching member and rotating rod in use according to the present invention.

Figure 6 is a cross-sectional view (3) of the actuating component, limiting component, switching member and rotating rod in use according to the present invention.

The detailed description and technical content of the present invention are described below with reference to the drawings. However, the attached drawings are only for reference and illustration and are not intended to limit the present invention.

Referring to Figures 1 to 3, the present invention provides a hand tool that can switch working directions. The hand tool in this embodiment is a screwdriver with a ratchet, which mainly includes a grip 10, an actuating component 20, and an The limiting component 30 , a switching member 40 and a rotating rod 50 .

The handle 10 is provided for the user to hold, and may be made of soft plastic, rubber, or other materials.

The actuating assembly 20 is connected to the aforementioned handle 10 and mainly includes an actuating seat 21 and a positioning group 25. The actuating seat 21 mainly includes a sleeve 22 and a tube body 23 extending from the sleeve 22. The outer surface of the barrel 22 is provided with a receiving groove 221, and the interior of the sleeve 22 is provided with a plurality of pivot grooves 222. Each pivot groove 222 is arranged at intervals, and a protrusion 223 is provided between each pivot groove 222 inside the sleeve 22. The protruding strip 223 is formed in the middle position of each pivot groove 222 . In addition, an actuating groove 224 is respectively provided in the front side area of each pivot groove 222, and an inner wall surface 225 is provided inside the sleeve 22; in addition, a stop surface 226 is respectively provided at the edge of each pivot groove 222 of the sleeve 22.

A plurality of molding strips 231 are provided on the outer surface of the tube body 23 , and each molding strip 231 is used to be fixedly combined with the handle 10 . The positioning group 25 mainly includes an elastic body 26 and a positioning piece 27 that contacts the elastic body 26. The elastic body 26 in this embodiment is a compression spring, which is disposed in the aforementioned accommodation groove 221. The positioning piece 27 in this embodiment It is a ball, which can move in and out of the aforementioned groove 221 .

The limiting component 30 is disposed in the sleeve 22 of the actuating seat 21 and mainly includes a plurality of latch members 31 and an elastic element 32. One end of each latch member 31 has at least one latch 311. The latch member 31 The other end has a pivot 312, and a recessed area 313 is provided on the front side of the latch member 31. Each pivot 312 is pivoted corresponding to the aforementioned pivot groove 222 and is formed on the side of the latch member 31 through the stop surfaces 226 of the sleeve 22 to limit the deflection stroke of each latch member 31, so that This prevents the latch member 31 from being stuck or unable to reset due to excessive displacement and other undesirable situations. In addition, the latching teeth 311 in this embodiment may be a single number, or may be a plurality of latching teeth 311 .

The elastic element 32 of this embodiment is a W-shaped elastic piece with a groove 321 at one end and two contact pieces 322 formed at the other end. The grooves 321 are used to be fixed on the aforementioned convex strips 223. The connecting piece 322 contacts each latch member 31 respectively.

The switching member 40 is movably connected to the actuating seat 21 and formed on the end surface of the handle 10, and has a turntable 41 with a plurality of push blocks 42 extending inside the turntable 41 and a plurality of positioning members. Slot 43, each push block 42 is spaced apart and configured corresponding to each of the aforementioned latch members 31. The push block 42 can rotate and move in the aforementioned actuating groove 224, and the aforementioned positioning member 27 can be selectively embedded. in each positioning groove 43.

The rotating rod 50 includes a rod body 51 and a ratchet gear 52 located in the middle region of the rod body 51. One end of the rod body 51 is a tool head 53, and the other end of the rod body 51 is a coupling end 54. The rod body 51 is The combining end 54 passes through the turntable 41 and the actuating seat 21 in sequence, and the ratchet gear 52 is formed in the sleeve 22 of the actuating seat 21 and is configured corresponding to each latch member 31, wherein the aforementioned inner wall surface 225 is firmly Covering the outer periphery of the ratchet gear 52 . The recessed area 313 can avoid interference between the pivot 312 and the pushing block 42 when the pushing block 42 pushes against the latch member 31 .

In one embodiment, the hand tool that can switch the working direction of the present invention also includes a buckle 60. The rod body 51 is provided with a buckle groove 55 on the inside adjacent to the coupling end 54. The buckle ring 60 is fastened to the buckle groove 55 and allows the The actuating seat 21 and the switching member 40 are in contact with each other.

It should be noted that, by utilizing the cooperative relationship between each latch member 31 , the elastic element 32 and the actuator seat 21 , each contact piece 322 can stably contact one end of each latch member 31 respectively, and through each latch member 31 The other end is pivotally connected to each pivot groove 222, so that each latch member 31 can produce stable deflection, thereby preventing each latch tooth 311 from being stuck, tripped, or unable to be reset due to excessive displacement.

As shown in FIG. 4 , during operation, when the turntable 41 is rotated so that the positioning member 27 is selectively embedded in one of the positioning grooves 43 , each pushing block 42 can relatively push each latch member 31 to generate deflection. Therefore, the latch teeth 311 can latch or disengage from the ratchet gear 52 .

It should be noted that in FIG. 4 , the positioning member 27 is embedded in the positioning groove 43 in the middle position, and a spacing distance is formed between each pushing block 42 and each latch member 31 . At this time, the tool head 53 (see FIG. 1 ) can rotate counterclockwise or clockwise.

Please continue to refer to Figures 5 and 6. In Figure 5, when the turntable 41 is rotated in the counterclockwise direction, the positioning member 27 is embedded in the positioning groove 43 above (left side of the middle positioning groove), and the pushing block 42 below will The lower latch member 31 deflects, causing its latch teeth 311 to disengage from the ratchet gear 52; the upper latch member 31 maintains the mesh of its latch teeth 311 with the ratchet gear 52. At this time, the tool head 53 (see Figure 1) can drive the ratchet gear 52 to rotate counterclockwise; and when the tool head 53 rotates clockwise, the ratchet gear 52 will idle, thereby achieving a single Direction counterclockwise rotation operation.

In FIG. 6 , when the turntable 41 is rotated in the clockwise direction, the positioning member 27 is inserted into the positioning groove 43 below (on the right side of the middle positioning groove), and the pushing block 42 located above will push the catching member 31 above to generate a lock. The deflection causes each of the latching teeth 311 to disengage from the ratchet gear 52; the latching teeth 311 of the lower catch member 31 remain in mesh with the ratchet gear 52. Accordingly, the tool head 53 (see Figure 1) can drive the ratchet gear 52 to rotate in a clockwise direction; and when the tool head 53 rotates in a counterclockwise direction, the ratchet gear 52 will idle, thereby achieving a single direction. Turn operation clockwise.

To sum up, the hand tool with switchable working direction of the present invention can indeed achieve the expected purpose of use and solve the deficiencies of conventional knowledge. Moreover, because it is extremely novel and progressive, it fully meets the requirements for invention patent application and complies with the patent law. If you submit an application, please review it carefully and grant the patent in this case to protect the rights of the inventor.

20: Actuation assembly

21: Actuator seat

22:Sleeve

221:Tank

222: Pivot slot

223: convex strip

224:Actuating groove

225:Inner wall surface

226: Stop surface

23:Tube body

231: Molding

25: Positioning group

26: Elastomer

27: Positioning parts

30:Limit component

31:Latching component

32: Elastic element

40:Switch components

41:Turntable

42: Push block

43: Positioning slot

50: Rotary rod

51: Rod body

52:ratchet gear

53:Tool head

54:Combining end

55:Buckle groove

60:Buckle

Claims (9)

A hand tool that can switch working directions, including: a handle; an actuating component connected to the handle; the actuating component includes an actuating base and a positioning group; the actuating base includes a sleeve; the sleeve A receiving groove and a plurality of pivot grooves are provided at internal intervals, and a protrusion is provided between each pivot groove of the sleeve. The positioning group includes an elastic body and a positioning piece that contacts the elastic body. The elastic body is arranged on In the container; a limiting component is disposed in the actuating seat. The limiting component includes a plurality of latch members and an elastic element. Each latch member is pivotally connected to each of the pivot grooves. Each latch member is pivotally connected to each of the pivot grooves. The latch member has at least one latch, and the elastic element has a groove and a plurality of contact pieces. The convex strip is embedded in the groove, and each of the contact pieces contacts the latch member respectively; a switching member, The switching member is movably connected to the actuating seat. The switching member has a turntable and a plurality of push blocks formed on the turntable. The turntable is provided with a plurality of positioning grooves for the positioning member to be embedded; and a rotating rod includes a rod body. And a ratchet gear is provided on the rod body, one end of the rod body passes through the turntable and the actuator seat in sequence, and the ratchet gear is configured corresponding to each of the detent members; wherein the turntable is rotated to cause the positioning member When selectively embedded in one of the positioning grooves, each of the pushing blocks can correspondingly push against each of the locking members to generate deflection, so that the locking teeth can lock or disengage from the ratchet gear. The hand tool capable of switching working directions as described in claim 1, wherein the elastic element is a W-shaped elastic piece. The hand tool capable of switching working directions as claimed in claim 1, wherein one end of each pivot groove of the sleeve is provided with an actuating groove for the movement of the push block. The hand tool capable of switching working directions as claimed in claim 1, wherein the side of each pivot groove of the sleeve is provided with a stop surface that limits the deflection stroke of the latch member. The hand tool with switchable working direction as claimed in claim 1, wherein the sleeve has an inner wall covering the outer periphery of the ratchet gear. The hand tool capable of switching working directions as described in claim 1, wherein each latch member further has a pivot shaft away from the latch teeth, and each latch member is pivotally connected to the pivot groove through the pivot shaft. The hand tool capable of switching working directions as claimed in claim 6, wherein each latch member is further provided with a recessed area to avoid interference between the pivot axis and the push block. The hand tool capable of switching working directions as described in claim 1, wherein the number of teeth of each latch member is plural. The hand tool with switchable working direction as described in claim 1, wherein one end of the rod body is a tool head, and the other end of the rod body is a coupling end, and the rod body passes through the turntable in sequence with the coupling end. and the actuating seat, the tool head is exposed outside the turntable.

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