TW201505774A - Ratchet wrench - Google Patents

Abstract

A ratchet wrench is provided, including: a body, including a receiving slot and a first anti-dust portion circumferentially disposed outside the receiving slot, the first anti-dust portion including a first circumferential surface and an anti-dust wall, the first circumferential surface extending from an outer circumferential surface to the receiving slot, the anti-dust wall protruded on an inner rim of the first circumferential surface: a ratchet head, rotatably disposed in the receiving slot, and including an assembling protrusion; a cover cap, covered on the body and above the ratchet head, including a second anti-dust portion corresponding to the first anti-dust portion in shape and a sliding slot penetrating through the cover cap, wherein the second anti-dust portion includes a circumferential protrusion facing the first circumferential surface and a circumferential concave adjacent a inner rim of the circumferential protrusion, the circumferential protrusion engages with the anti-dust wall, the circumferential protrusion is disposed adjacent to the anti-dust wall radially, an end of the sliding slot is formed with a flange extending inward radially; a stuck mechanism, including a pushing assembly and a jamming member, the pushing assembly disposed in the ratchet head and movable between a stuck position and a releasing position, the stuck mechanism including a pushing plate, the pushing plate provided with a stopping member outwardly protruding on a lateral side, the stopping member getting stuck with the flange so that the pushing plate limited in the sliding slot, the jamming member movably disposed in the ratchet head and selectively protruding outside the assembling protrusion partially, the pushing assembly moving from the stuck position to the releasing position via pushing the pushing plate from outside, when the pushing assembly is located on the stuck position, the pushing assembly pushes the jamming member and the jamming member protrudes outside the assembling protrusion partially, when the pushing assembly is located on the releasing position, the pushing assembly unpushes the jamming member and the jamming member moves back in the assembling protrusion. Another ratchet wrench is also provided, a body, including a receiving slot and a first anti-dust portion circumferentially disposed outside the receiving slot, the first anti-dust portion including a first circumferential surface and an anti-dust wall, the first circumferential surface extending from an outer circumferential surface to the receiving slot, the anti-dust wall protruded on an inner rim of the first circumferential surface; a ratchet head, rotatably disposed in the receiving slot, including a second anti-dust portion corresponding to the first anti-dust portion in shape and an assembling protrusion, wherein the second anti-dust portion includes a circumferential protrusion facing the first circumferential surface and a circumferential concave adjacent a inner rim of the circumferential protrusion, the circumferential protrusion engages with the anti-dust wall, the circumferential protrusion is disposed adjacent to the anti-dust wall radially, an end of the sliding slot is formed with a flange extending inward radially; a cover cap, covered on the body and above the ratchet head, including a sliding slot penetrating through the cover cap, the sliding slot formed with a flange extending inward radially; a stuck mechanism, including a pushing assembly and a jamming member, the pushing assembly disposed in the ratchet head and movable between a stuck position and a releasing position, the stuck mechanism including a pushing plate, the pushing plate provided with a stopping member outwardly protruding on a lateral side, the stopping member getting stuck with the flange so that the pushing plate limited in the sliding slot, the jamming member movably disposed in the ratchet head and selectively protruding outside the assembling protrusion partially, the pushing assembly moving from the stuck position to the releasing position via pushing the pushing plate from outside, when the pushing assembly is located on the stuck position, the pushing assembly pushes the jamming member and the jamming member protrudes outside the assembling protrusion partially, when the pushing assembly is located on the releasing position, the pushing assembly unpushes the jamming member and the jamming member moves back in the assembling protrusion.

Description

Ratchet wrench

The invention relates to wrenches, and in particular to a ratchet wrench.

According to the conventional ratchet wrench, the center of the ratchet wheel is provided with an assembly portion for being assembled with, for example, a sleeve tool, so that the user can operate the wrench to drive the sleeve to screw the workpiece such as a bolt or a nut or For the disassembly work, the ratchet wrench disclosed in, for example, TWM449061, TWM426472 is passed through the clamp assembly for clamping with the work piece or the sleeve tool. Further, the clamp assembly as described above generally uses elasticity. The piece can be elastically deformed to be pressed against the work piece or the sleeve tool to produce a clamping effect.

However, in general, the elastic member may cause material fatigue as the use time and the number of uses increase, and the ability of the elastic member to elastically deform is gradually reduced, so that the tool clamping effect is deteriorated. Therefore, the present invention proposes a research and improvement scheme for this problem. .

Therefore, it is necessary to provide a novel and progressive ratchet wrench to solve the above problems.

The main object of the present invention is to provide a ratchet wrench which can be assembled with a tool device through a pressing control to prevent the tool device from falling during work, to achieve safety, and can be conveniently moved after work. In addition, convenient and fast, in addition to the torus The design of the combined dustproof wall can further produce the effect of dustproofing and achieve the effect of cleaning and protecting mechanism.

In order to achieve the above object, the present invention provides a ratchet wrench, comprising: a body comprising a receiving groove and a first dustproof portion disposed outside the receiving groove, the first dustproof portion including a first toroidal surface And a dustproof wall, the first annular surface extending from the outer annular surface of the body toward the receiving groove, the dustproof wall being protruded from an inner annular edge of the first annular surface; a ratchet head pivotally Provided in the housing, comprising a set of protruding portions; a cover disposed on the body and located on the ratchet head, having a second dustproof portion corresponding to the first dustproof portion and a through hole a cover of the cover, the second dust-proof portion includes a ring protrusion facing the first ring surface and a ring recess adjacent to an inner ring edge of the ring protrusion, the ring recess and the dust wall are mutually engaged with each other, The ring protrusion and the dustproof wall are disposed adjacent to each other in the radial direction, and one end of the sliding groove is provided with a radially inwardly extending retaining edge; a latching mechanism includes a pushing component and a top abutting component, and the pushing component is Inserted into the ratchet head and movable in an abutting position and a releasing position, the pushing component comprises a pressing plate The pressing plate is provided with a convex locking member on the circumferential side ring, and the locking member is engaged with the retaining edge to limit the pressing plate to the sliding slot, and the pressing member is movably disposed on the sliding member The ratchet head is selectively partially protruded from the set of convex portions, and the pushing member is moved from the abutting position to the releasing position by pressing the pressing plate by the outside, when the pushing component is located at the releasing position a top position, the pushing member defines the abutting portion and partially protrudes from the set of convex portions, and when the pushing member is located at the releasing position, the pushing member does not define the abutting member and the abutting member Can retreat into the set of convex parts.

In order to achieve the above object, the present invention further provides a ratchet wrench, comprising: a body comprising a receiving groove and a first dustproof portion disposed outside the receiving groove, the first dustproof portion comprising a first torus And a dustproof wall, the first torus is facing the cavity by the outer ring of the body Extending in a direction, the dustproof wall is protruded from an inner ring edge of the first annular surface; a ratchet head is pivotally disposed in the receiving groove, and has a second dustproof shape corresponding to the first dustproof portion And a set of protrusions, wherein the second dustproof portion comprises a ring protrusion facing the first toroid and an annular recess adjacent to an inner ring edge of the ring protrusion, the ring recess and the dust wall mutually mutually a ring-shaped protrusion and the dustproof wall are disposed adjacent to each other in the radial direction; a cover is disposed on the body and located on the ratchet head, and has a sliding slot extending through the cover, and one end of the sliding slot is provided with a diameter a retaining edge extending inwardly; a latching mechanism comprising a pushing component and a topping member, the pushing component being inserted into the ratchet head and movable in an abutting position and a releasing position, the pushing The abutting member includes a pressing plate, and the pressing plate is provided with a convex locking member on the circumferential side ring, and the locking member is engaged with the retaining edge to limit the pressing plate to the sliding groove, and the pressing member is located in the sliding groove Movably disposed in the ratchet head and selectively partially protruding from the set of convex portions, the pushing component is pressed by the outside The plate is moved from the abutting position to the releasing position, and when the pushing component is located in the abutting position, the pushing component defines the abutting member and partially protrudes from the set of convex portions, when the pushing component Located in the release position, the pushing component does not define the abutting member and the abutting member can retreat into the set of convex portions.

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧First Dust Department

12a‧‧‧First dustproof part

121‧‧‧First torus

121a‧‧‧First torus

122‧‧‧Dust wall

122a‧‧‧Dust wall

13‧‧‧ Ratchet

20‧‧‧ ratchet head

21‧‧‧Group of convex parts

22‧‧‧ teeth parts

23‧‧‧Toothing

30‧‧‧ Cover

31‧‧‧Second dustproof part

31a‧‧‧Second dustproof part

311‧‧‧ ring convex

311a‧‧‧ ring convex

312‧‧‧

312a‧‧‧

313‧‧‧ second torus

313a‧‧‧second torus

32‧‧‧Chute

33‧‧‧ 缘缘

34‧‧‧

40‧‧‧Card institutions

41‧‧‧Pushing components

411‧‧‧Press board

412‧‧‧ rods

413‧‧‧Balls

414‧‧‧Caps

415‧‧‧ card slot

416‧‧‧Cards

42‧‧‧Parts

50‧‧‧Flexible parts

51‧‧‧Bump

60‧‧‧ screw

61‧‧‧Perforation

P1‧‧‧Right position

P2‧‧‧ release position

P3‧‧‧ third position

P4‧‧‧ fourth position

1 is a schematic view of a preferred embodiment of the present invention.

2 is an exploded view of a preferred embodiment of the present invention.

3 is a schematic view of the assembly of a preferred embodiment of the present invention.

4 is another assembled view of a preferred embodiment of the present invention.

Figure 5 is a diagram showing the state of use of a preferred embodiment of the present invention.

Figure 6 is a diagram showing another state of use of a preferred embodiment of the present invention.

Figure 7 is a schematic illustration of another preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIGS. 1 through 4, there is shown a first preferred embodiment of the present invention. A ratchet wrench of the present invention comprises a body 10, a ratchet head 20, a cover 30 and a latching mechanism 40.

The main body 10 includes a receiving slot 11 and a first dustproof portion 12 disposed outside the receiving slot 11. The peripheral wall of the receiving slot 11 is provided with a ratchet portion 13. Further, the body 10, The container 11, the first dust-proof portion 12, and the ratchet portion 13 can be integrally molded by, for example, hot metal casting or forging using a metal material (for example, a metal material such as aluminum alloy or steel). More specifically, the first dustproof portion 12 includes a first annular surface 121 and a dustproof wall 122. The first annular surface 121 extends from the outer annular surface of the body 10 toward the receiving slot 11 to prevent dust. The wall 122 is protruded from the inner annular edge of the first annular surface 121. In other possible embodiments, the first annular surface 121 may be a radial inclined surface. For example, the first annular surface 121 may be, for example, There is an angle with the cross section of the pocket 11.

The ratchet head 20 is pivotally disposed in the pocket 11 and includes a plurality of protrusions 21. In the embodiment, the ratchet head 20 is provided with a selection of the ratchet portion 13. The intermeshing toothing member 22, more specifically, the toothing member 22 includes a toothing portion 23 for interengaging with the ratchet portion 13, the toothing portion 23 comprising a plurality of teeth, the system Preferably, the tooth member 22 can be made of carbon steel, so that the toothed member 22 has good wear resistance and high strength material rigidity.

The toothing member 22 can limit the rotation direction of the ratchet head 20. For example, the toothing member 22 can controlably engage the ratchet head 20 with the ratchet head 20 through a positioning mechanism, for example. Further, in the present embodiment, the positioning mechanism includes, for example, an elastic member 50 and a protruding post 51 through which the elastic member 50 is disposed. The elastic member 50 is assembled to the tooth forming member 22, and the protruding post is For example, the cover 30 can be connected to the cover 30 by rotating the cover 30 and the protrusion 51. The protrusion 51 abuts against one end of the elastic member 50 and generates a pulling force on the elastic member 50. 22 is positioned to a predetermined position by the interlocking of the elastic member 50 and engaged with the ratchet portion 13 , and the ratchet head 20 is engaged with the ratchet portion 13 through the tooth forming member 22 to achieve the braking effect, thereby limiting the The direction of rotation of the ratchet head 20.

The cover 30 is disposed on the body 10 and is located on the ratchet head 20. The cover 30 has a second dustproof portion 31 corresponding to the first dustproof portion 12 and a slide through the cover. The groove 32, further, the second dustproof portion 31 includes a ring protrusion 311 facing the first ring surface 121 and an annular recess 312 adjacent to an inner ring edge of the ring protrusion 311, the ring recess 312 and The dust-proof walls 122 are mutually fitted to each other. The annular protrusions 311 and the dust-proof wall 122 are disposed adjacent to each other in the radial direction. One end of the sliding groove 32 is provided with a radially inwardly extending retaining edge 33. The annular protrusion 311 has a second annular surface 313 corresponding to the shape of the first annular surface 121, such that the first dustproof portion 12 and the second dustproof portion 31 are mutually coupled to each other through the first and second annular surfaces 121, 313 For example, the gap between the first and second annular faces 121, 313 can be set to 0.1 mm, and the first and second annular faces 121, 313 can be processed through, for example, a polishing process. The compatibility between the cover 30 and the body 10 can be smoothly operated (for example, the cover 30 can be opposite to the present The body 10 is rotated), and general foreign matter (such as dust) cannot be entered into the cavity 11 of the ratchet wrench. It is worth mentioning that the dustproof wall is fitted to each other. 122 and the annular recess 312 can further prevent the particulate matter from directly entering the ratchet wrench, substantially further improving the dustproof effect. In addition, the ratchet wrench further includes a screw member 60 screwed between the cover 30 and the ratchet head 20, and the cover 30 and the ratchet head 20 are connected to each other through the screw member 60.

The latching mechanism 40 includes a pushing member 41 and a topping member 42. The pushing member 41 includes a pressing plate 411. The pressing plate 411 is provided with a convex locking member 416 on the circumferential side ring. The stop 416 is engaged with the retaining edge 33 to limit the pressing plate 411 to the sliding slot 32. In this embodiment, the pushing member 41 further includes a rod member 412, a ball member 413, and a top member 414 that is elastically abutted between the ball member 413 and the inner wall of the ratchet head 20, the rod member 412. One of the first ends is slidably inserted into the ratchet head 20 and abuts against the ball member 413. The ball member 413 selectively defines the abutting member 42. The pressing plate 411 is disposed on the rod member. The second end of the 412 is not limited. The second end of the rod 412 is provided with a slot 415. The slot 415 is embedded in the pressing plate 411 and the pressing plate 411 is completely The card slot 415 is filled to provide a better connection strength between the pressing plate 411 and the rod member 412. In this embodiment, the locking member 416 is a fastener, and the locking member 416 is overlapped with the retaining edge 33 of the sliding slot 32 in the axial direction. Further, the pressing plate 411 is The sliding groove 32 can be assembled into the sliding groove 32. The end of the sliding groove 32 is preferably provided with a rounded corner 34 to facilitate the process of press-in assembly, and the screw 60 is more convenient. Further, a through hole 61 is provided for the rod member 412 to pass through, so that the rod member 412 can be actuated through the through hole 61.

With reference to FIGS. 5 to 6 , in actual use, the pushing component 41 is inserted into the ratchet head 20 and can move to an abutting position P1 and a releasing position P2 , and the abutting member 42 is movable. Provided in the ratchet head 20 and selectively partially protruding from the set of convex portions 21, further, the pushing component 41 is moved from the abutting position P1 to the releasing position P2 by externally pressing the pressing plate 411, and when the pushing component 41 is located at the abutting position P1, the pushing The abutting member 41 defines the abutting member 42 and partially protrudes from the set of convex portions 21. When the pushing member 41 is located at the releasing position P2, the pushing member 41 does not define the abutting member 42 and the top portion The abutting member 42 can be retracted into the set of convex portions 21. For example, the abutting member 42 can be, for example, a steel ball, and some of the steel balls can protrude or retreat into the set of convex portions 21, more specifically The elastic force of the elastic member 414 is transmitted to the pressing plate 411 through the ball member 413, and the locking member 416 and the retaining edge 33 are mutually engaged to make the pressing plate 411 normally. Maintaining at a third position P3, when the pushing component 41 is located at the abutting position P1, the pressing plate 411 is located at the third position P3, and the abutting portion 42 is partially protruded from the set of convex portions 21 And a tool device (such as a sleeve tool) can be assembled with each other to prevent the tool device from falling off; the pressing plate 411 can be pressed by an external force, for example. Sliding to a fourth position P4, when the pushing member 41 is located at the releasing position P2, the pressing plate 411 is located at the fourth position P4, and the abutting member 42 is retracted into the set of convex portions 21, The tool device can be smoothly removed from the set of convex portions 21.

Referring to FIG. 7, another preferred embodiment of the ratchet wrench of the present invention includes a body, and the body includes a receiving slot and a first dustproof portion 12a disposed outside the receiving slot. The portion 12a includes a first annular surface 121a and a dustproof wall 122a. The first annular surface 121a extends from the outer annular surface of the body toward the receiving groove, and the first annular surface 121a may be a radial inclined surface. The dustproof wall 122a is protruded from an inner annular edge of the first annular surface 121a, and the ratchet wrench includes a ratchet head pivotally disposed in the cavity, having a shape and the first dustproof portion 12a. Corresponding second dust-proof portion 31a and a plurality of protruding portions, wherein the second dust-proof portion 31a includes a ring-shaped protrusion 311a facing the first annular surface 121a and an inner ring edge adjacent to the annular protrusion 311a The annular recess 312a, the annular recess 312a and the dustproof wall 122a are mutually fitted to each other. The annular projection 311a and the dustproof wall 122a are disposed adjacent to each other in the radial direction. The annular projection 311a has a shape and a shape of the first annular surface 121a. Corresponding to the second toroidal surface 313a, when the first dustproof portion 12a and the second dustproof portion 31a are arranged to each other, the first and second annular surfaces 121a and 313a can be adhered to each other to achieve dustproof effect. It is worth mentioning that the dust-proof wall 122a and the annular recess 312a which are fitted to each other can further prevent the particulate matter from directly entering the ratchet wrench, thereby substantially further improving the dustproof effect. The ratchet wrench includes a cover disposed on the body and located on the ratchet head, and has a sliding slot extending through the cover, and one end of the sliding slot is provided with a radially inwardly extending retaining edge. The ratchet wrench further includes a toothing member, a positioning mechanism and a latching mechanism, which may be the same as the above-mentioned structure, and therefore will not be described herein.

In summary, a ratchet wrench of the present invention is capable of being assembled with a tool device through a press control to prevent the tool device from falling during work, achieving a safety effect, and being conveniently removed after the operation. It is convenient and quick. In addition, through the design of the torus and the dust-proof wall, the dust-proof effect can be further generated to achieve the effect of cleaning and protecting the mechanism.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also an unprecedented innovative structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law, and is filed according to law, and please The bureau will review it early and give it affirmation.

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧First Dust Department

121‧‧‧First torus

122‧‧‧Dust wall

13‧‧‧ Ratchet

20‧‧‧ ratchet head

21‧‧‧Group of convex parts

22‧‧‧ teeth parts

23‧‧‧Toothing

30‧‧‧ Cover

32‧‧‧Chute

411‧‧‧Press board

412‧‧‧ rods

413‧‧‧Balls

414‧‧‧Caps

416‧‧‧Cards

42‧‧‧Parts

50‧‧‧Flexible parts

51‧‧‧Bump

60‧‧‧ screw

Claims (10)

A ratchet wrench includes a body including a receiving groove and a first dustproof portion disposed outside the receiving groove, the first dustproof portion including a first annular surface and a dustproof wall, the first ring The surface of the body extends from the outer ring surface of the body toward the receiving groove, and the dustproof wall is protruded from the inner ring edge of the first annular surface; a ratchet head is pivotally disposed in the receiving groove, including a a cover portion is disposed on the body and located on the ratchet head, and has a second dustproof portion corresponding to the first dustproof portion and a sliding slot extending through the cover, the second dustproof The portion includes a ring protrusion facing the first toroid and a ring recess adjacent to an inner ring edge of the ring protrusion, the ring recess and the dust wall are mutually fitted to each other, the ring protrusion and the dust wall are radially Adjacently disposed, one end of the chute is provided with a radially inwardly extending retaining edge; a latching mechanism includes a pushing component and a top abutting component, the pushing component is inserted into the ratchet head and is movable In a topping position and a releasing position, the pushing component comprises a pressing plate, and the pressing plate is provided with a convex surface on the circumferential side ring. a locking member that is engaged with the retaining edge to limit the pressing plate to the sliding slot, the top abutting member being movably disposed in the ratchet head and selectively protruding partially from the And the pushing component is moved from the abutting position to the releasing position by pressing the pressing plate by the outside, and when the pushing component is located in the abutting position, the pushing component sets the abutting component And a portion protrudes from the set of convex portions. When the pushing component is located at the releasing position, the pushing component does not appoint the abutting member and the abutting member can retreat into the set of convex portions. The ratchet wrench of claim 1, wherein the peripheral wall ring in the housing is provided with a ratchet portion, the ratchet head is provided with a toothing member selectively engageable with the ratchet portion, and the toothed member is limited The direction of rotation of the ratchet head. The ratchet wrench according to claim 1, wherein the pushing member further comprises a rod member, a ball member and a spring member that is elastically abutted between the ball member and the inner wall of the ratchet head, the rod member One end is slidably inserted into the ratchet head and abuts against the ball member, the ball member selectively defines the top abutting member, and the pressing plate is disposed at one of the second ends of the rod member. The ratchet wrench of claim 1, wherein the locking member is a fastener that overlaps the rim portion in the axial direction. The ratchet wrench of claim 3, further comprising a screw threaded between the cover and the ratchet head, the screw member comprising a through hole for the rod member to be pierced, the second member of the rod member The end ring is provided with a card slot, the card slot is embedded in the pressing plate and the pressing plate completely fills the card slot. A ratchet wrench includes a body including a receiving groove and a first dustproof portion disposed outside the receiving groove, the first dustproof portion including a first annular surface and a dustproof wall, the first ring The surface of the body extends from the outer ring surface of the body toward the receiving groove, and the dustproof wall is protruded from the inner ring edge of the first annular surface; a ratchet head is pivotally disposed in the receiving groove, and has a a second dustproof portion and a set of protruding portions corresponding to the first dustproof portion, wherein the second dustproof portion includes a ring convex portion facing the first annular surface and an inner annular edge adjacent to the annular convex portion a ring recess, the ring recess and the dustproof wall are mutually fitted to each other, the ring protrusion and the dustproof wall are disposed adjacent to each other in the radial direction; a cover is disposed on the body and located on the ratchet head, having a through-sealing a sliding slot of the cover, the one end of the sliding slot is provided with a radially inwardly extending retaining edge; a latching mechanism comprising a pushing component and a top abutting component, the pushing component is inserted into the ratchet head and Actuating in an abutting position and a releasing position, the pushing component comprises a pressing plate, and the pressing plate is provided with an outer ring on the side of the circumference The locking member, the engaging member relative to the card edge contact and stop the press plate Restricted in the sliding slot, the abutting member is movably disposed in the ratchet head and selectively protrudes from the set of convex portions, and the pushing member is pressed by the outside by the pressing plate The abutting position is moved to the releasing position, and when the pushing component is located at the abutting position, the pushing component defines the abutting portion and partially protrudes from the set of convex portions, when the pushing component is located at the releasing Position, the pushing component does not define the abutting member and the abutting member can retreat into the set of convex portions. The ratchet wrench of claim 6, wherein the peripheral wall ring in the housing is provided with a ratchet portion, the ratchet head is provided with a toothing member selectively engageable with the ratchet portion, and the toothed member is limited The direction of rotation of the ratchet head. The ratchet wrench according to claim 6, wherein the pushing component further comprises a rod member, a ball member and a projectile member that strikes between the ball member and the inner wall of the ratchet head, the rod member One end is slidably inserted into the ratchet head and abuts against the ball member, the ball member selectively defines the top abutting member, and the pressing plate is disposed at one of the second ends of the rod member. The ratchet wrench of claim 6, wherein the locking member is a fastener that overlaps the rim portion in the axial direction. The ratchet wrench of claim 8, further comprising a screw threaded between the cover and the ratchet head, the screw member comprising a through hole for the rod member to be pierced, the second member of the rod member The end ring is provided with a card slot, the card slot is embedded in the pressing plate and the pressing plate completely fills the card slot.