TWI659808B - Puller Tool - Google Patents

Abstract

The invention relates to a wheel puller, which comprises: a body having a first screw hole and a plurality of pivot joints surrounding the first screw hole; a screw member screwed in the first screw hole A plurality of claw members, each claw member being pivotally connected to the plurality of pivot joints, each of the claw members including a first side; a spring card mechanism provided on the main body, the spring card mechanism being provided with a deformable spring The elastic side portion on the first side surface is slidably elasticized by the elastic card mechanism into a smooth surface.

Description

Puller

The invention relates to a puller.

As disclosed in Taiwan Patent Case M518284, it includes a body, an upper cover piece and a plurality of claws, the body has a plurality of laterally opened card slots; an upper cover piece is locked on the body, and the upper cover piece is provided with a plurality of card holders. The plurality of claw members are respectively pivotally connected to each of the card slots, and each of the plurality of claw members is provided with a tooth surface opposite to the card abutting portion; wherein the tooth surfaces of each claw member are fixed by each card abutting portion The pivoting angle of each claw member.

However, the conventional technology needs to additionally lock the upper cover sheet on the body and the upper cover sheet needs to cooperate with the structure of the body to achieve the effect of fixing the claw member. Therefore, the conventional technology has many parts and needs to be more accurate in production, so it has the disadvantages of high manufacturing cost and difficult assembly.

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

The main object of the present invention is to provide a wheel puller with simple parts, low manufacturing cost and easy assembly.

In order to achieve the above object, the present invention provides a wheel puller, which includes: a body having a first screw hole and a plurality of pivot joints surrounding the first screw hole; a screw member screwed on The first screw hole; a plurality of claw members, each claw member being pivotally connected to the plurality of pivot joints, each of the claw members including a first side surface; a spring card mechanism provided on the body, the spring card mechanism provided with a The elastically deformable elastically abuts the elastically abutting side of the first side; wherein the first side is slidably elastically abutted by the elastic mechanism to form a smooth surface; wherein the base corresponds to the first of each claw member. The side surface is provided with a second side surface, and one side of the elastic abutting side portion abuts against the second side surface and is movable relative to the first side surface.

1‧‧‧ Puller

10‧‧‧ Ontology

11‧‧‧ the first screw hole

111‧‧‧ Torus

12‧‧‧ Pivot

122‧‧‧Second pivot hole

131‧‧‧ second side

121, 33‧‧‧ first pivot hole

13‧‧‧ base

14‧‧‧ limit agency

15‧‧‧Circle trench

16‧‧‧ Guided ring end

20,20’‧‧‧Screw

30‧‧‧Claw pieces

42‧‧‧tooth structure

50‧‧‧ Bolt

51‧‧‧Subject

511‧‧‧ ring groove

52‧‧‧C buckle

60‧‧‧ cylinder holder

61‧‧‧Second tap hole

62‧‧‧ ring flange

70‧‧‧ extension

71‧‧‧ Pivot Structure

72‧‧‧ Connection Department

73‧‧‧ the first side

80‧‧‧ elastic

90‧‧‧ Magnetic

32‧‧‧ the first side

34‧‧‧Clip

35‧‧‧ second side

40‧‧‧shot card agency

41‧‧‧ hit the side

L1‧‧‧Reference direction

R1‧‧‧Inner diameter size

R2‧‧‧Radial size

2‧‧‧ objects

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is a sectional view of FIG. 1.

FIG. 3 is a perspective view of another preferred embodiment of the present invention.

FIG. 4 is an exploded view of another preferred embodiment of the present invention.

FIG. 5 is a sectional view of another preferred embodiment of the present invention.

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

FIG. 7 is a cross-sectional view of a plurality of claw members in reverse mounting according to another preferred embodiment of the present invention.

FIG. 8 is an enlarged partial sectional view of FIG. 3.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIG. 1 to FIG. 8, which shows a preferred embodiment of the present invention. The puller 1 of the present invention includes: a body 10, a screw member 20, a plurality of claw members 30, and a latch mechanism 40.

The main body 10 has a first screw hole 11 and a plurality of pivot joints 12 provided around the first screw hole 11; the screw member 20 is screwed in the first screw hole 11; the plurality of claw members 30 and the A plurality of pivotal portions 12 are pivotally connected, and each of the claw members 30 includes a first side surface 32; the spring card mechanism 40 is disposed on the body 10, and the spring card mechanism 40 is provided with a deformable spring against the first side surface 32. The side portion 41 is bounced; wherein the first side surface 32 is slidably bounced to a smooth surface by the bounce mechanism 40. Therefore, the present invention provides simple assembly and low cost, provides easy assembly and enables each claw member 30 to be pivotally positioned to a predetermined angle.

Preferably, the elastic abutting side portion 41 is an elastic tooth row; in other embodiments, the elastic tooth row may also be an elastic flat surface, a wave surface, or the like. The first side surface 32 defines a reference direction L1 toward the first screw hole 11 and is perpendicular to the first side surface 32. The elastic tooth row is movable relative to the first side 32 transversely to the reference direction L1. A portion can be resiliently against the first side surface 32. When the elastic tooth row moves relative to the first side surface 32, a plurality of tooth structures 42 provided on the upper side can be sequentially elastically pushed against the first side surface 32, so that each of the claw members 30 can be opened and closed to facilitate operation and use. Preferably, the base portion 13 is provided with a second side surface 131 corresponding to the first side surface 32 of each of the claw members 30, and the second side surface 131 abuts the side portion 41 against the second side surface 121 and can be opposite to the second side surface 121. The first side surface 32 moves, whereby the resilient side portion 41 can stably move relative to the first side surface 32 without being easily displaced.

The first screw hole 11 defines an axial direction, and the latch mechanism 40 can be elastically moved relative to the body 10 along the axial direction; in detail, the puller 1 further includes an elastic member 80, and the elastic member 80 Springs between the body 10 and the spring card mechanism 40 to provide elastic compression and reset; in other embodiments, a magnetically the same can be provided on the opposite side of the body 10 and the spring card mechanism 40, respectively. The magnetic piece 90 provides a reverse thrust of magnetic repulsion to achieve a reset effect. Further explanation, the elastic member 80 and the magnetic member 90 can be simultaneously Or set individually. The body 10 is provided with a base portion 13 and a limiting mechanism 14 provided on the outer periphery. The base portion 13 is provided with the plurality of pivot joint portions 12. The spring card mechanism 40 is provided between the limiting mechanism 14 and the base portion 13. In this embodiment, the position-limiting mechanism 14 is a C buckle, and a ring groove 15 is provided on the outer periphery of the body 10, and the C buckle is provided on the ring groove 15 and projects radially outward from the ring groove 15, so that the structure is simple. And it is convenient for disassembly, as well as limiting, to prevent the spring card mechanism 40 from detaching. In other embodiments, the limiting mechanism 14 may also be, for example, a T-shaped post for being disposed on the body 10, and the T-shaped post is provided with a ring edge for snapping against the elastic card mechanism 40.

The pivoting portion 12 and the claw member 30 are respectively provided with at least one first pivot hole 121, 33. The pivoting portion 12 and each of the first pivot holes 121, 33 of the claw member 30 can be directly disengaged by a latch 50. The hinge is opened to achieve quick disassembly of the claw member 30. In the present embodiment, the pivot portion 12 is provided with a first pivot hole 121. In detail, the latch 50 is provided with a main body 51 and a C buckle 52, and a ring groove 511 is provided around the main body 51. The C buckle 52 is inserted into the ring groove 511, and the C buckle 52 projects radially from the ring groove 511 Can be abutted against the edge of each of the first pivot holes 121, 33, the inner diameter dimension R1 of the C buckle 52 is larger than the radial dimension R2 of the groove bottom of the ring groove 511, so that the latch 50 is opposite to each of the first pivot holes When 121,33 moves axially, the C buckle 52 of the bolt 50 can be pressed against the edge of the hole to deform and shrink into the ring groove 511, so that the bolt 50 can penetrate each of the first pivot holes 121,33, and the C When the buckle 52 is released from each of the first pivot holes 121 and 33, the buckle 52 can be elastically reset to achieve the limiting effect. In addition, the pivot portion 12 is provided with a second pivot hole 122 opposite to the first pivot hole 121. The diameter of the second pivot hole 122 is smaller than the diameter of the first pivot hole 121, so that the latch 50 cannot be easily moved by the first pivot hole 121. The two pivot holes 122 are disengaged. Preferably, each of the first pivot holes 121, 33 and the second pivot hole 122 is respectively provided with at least one slanted ring end 16, so that the plug pin 50 can penetrate the first and second pivot holes smoothly. In this embodiment, the pivot joint portion 12 and the first pivot holes 121 and 33 of the claw member have two slanted ring ends 16 provided on opposite sides to facilitate wearing and removing. The second pivot hole 122 defines a slanted ring end 16.

The wheel puller 1 further includes a cylinder base 60 which is detachably penetrated in the first screw hole 11, the cylinder base 60 is provided with a second screw hole 61, and the screw member 20 can be screwed in the The second screw hole 61, Mounting the barrel seat 60 in the first screw hole 11 can quickly provide the screw member of different sizes, such as a large-sized screw member 20 '(hydraulic rod) and a small-sized screw member 20. In this embodiment, the first screw hole 11 is provided with a radially extending annular step surface 111, and the outer periphery of the cylinder base 60 is provided with a annular flange 62 extending radially and capable of abutting the annular step surface 111, In order to limit the one-way disassembly of the cylinder holder 60. In other embodiments, the cylinder base can be resilient against the mechanism, and elastically snaps into place in the first screw hole.

The puller 1 further includes a plurality of extension bodies 70, each of which is connected between a body 10 and each claw member 30. Each extension body 70 is provided with a pivot structure 71 and a connecting portion 72. The pivot The connecting structure 71 is detachably pivotally connected to the main body 10, each of the claw members 30 is detachably provided on the connecting portion 72, each of the extensions 70 includes a first side 73, and the elastic side of the snap mechanism 40 41 deformably bounces against the first side 73; wherein, the first side 73 of the extension 70 is slidably bounced to a smooth surface by the spring card mechanism 40, so that it can be quickly disassembled to achieve adjustment Each claw member 30 has a size. In this embodiment, the structure and manner of the pivotal connection structure 71 of each of the extension bodies 70 and the pivotal connection portion 12 of each of the claw members 30 combined with the body 10 are the same, so they are not repeated here.

In actual use, each of the claw members 30 is provided with a clip 34 protruding laterally opposite to one end of the pivot portion 12. The clip 34 can be used to grip the object 2 (such as a wheel shaft or a gear). The plurality of claws The piece 30 is disposed around the body 10 and pivots to adjust the angle with respect to the body 10 according to the diameter size of the object 2 to be clamped to clamp the object 2 of various sizes. In addition, each of the claw members 30 is provided with a second side surface 35 opposite to the first side surface 32, the second side surface 35 is an arc surface, and the latch mechanism 40 can deformably spring against the first or second side surface 32, 35. Therefore, the plurality of claw members 30 can be flipped horizontally relative to the body 10 according to the outer diameter or the inner diameter of the object 2 to be clamped so that the clip 34 faces inward (as shown in FIG. 6) or outward (as shown in FIG. 7).

In use, the latch mechanism 40 can move relative to the body 10, so that each of the resilient side portions 41 can move against the first side 32 of each of the claw members 30, so that each of the claw members 30 can be radially expanded and Condensation (example As in this embodiment, pressing down each of the claw members 30 to unfold, and upwardly resetting each claw member 30, but not beyond this limit).

The invention achieves simple components, low cost, simple assembly and pivoting positioning of each claw member to a predetermined angle through the spring card mechanism. In addition, the pivot joint portion and the claw member are respectively provided with at least one first pivot hole to achieve the effect of quick disassembly and assembly. In addition, disassembling and mounting the barrel seat can quickly provide screw members of different sizes. Then the effect of extending each of the claw members is achieved by the extending body.

Claims (9)

A puller includes: a body having a first screw hole and a plurality of pivot joints provided around the first screw hole; a screw member screwed in the first screw hole; a plurality of claw members, respectively Pivotally connected to the plurality of pivotal joints, each of the claws includes a first side; a spring card mechanism provided in the body, the spring card mechanism is provided with a spring side which deformably springs against the first side; Wherein, the first side is slidably rebounded into a smooth surface by the elastic card mechanism; wherein, the base is provided with a second side corresponding to the first side of each claw member, and the side of the resilient side is abutted against Abutting on the second side surface and movable relative to the first side surface. The puller according to claim 1, wherein the resilient side is an elastic tooth row, the first side faces the first screw hole and is perpendicular to the first side defines a reference direction, and the elastic tooth row may be Moving transversely to the reference direction relative to the first side, a portion of the elastic tooth row can resiliently abut against the first side. The puller according to claim 1, wherein the first screw hole defines an axial direction, and the elastic locking mechanism can be elastically moved relative to the main body along the axial direction, and the main body is provided with a base portion and an outer peripheral portion. A limit mechanism, the base is provided with the plurality of pivot joints, and the spring card mechanism is provided between the limit mechanism and the base. The puller according to claim 1, wherein the pivot portion and the claw member are respectively provided with at least a first pivot hole, and each of the pivot portion and the first pivot hole of the claw member can be directly connected by a latch. Disengage the pivot. The puller according to claim 4, wherein the bolt is provided with a main body and a C buckle, the main body is provided with a ring groove, the C buckle is inserted into the ring groove, and the C buckle protrudes from the ring groove radially The inner diameter of the C buckle is larger than the radial dimension of the bottom of the ring groove. The puller according to claim 4, wherein the pivot portion is further provided with a second pivot hole opposite to the first pivot hole, and a diameter of the second pivot hole is smaller than that of the first pivot hole. The puller according to any one of claims 1 to 6, further comprising a barrel holder, the barrel holder is detachably inserted in the first screw hole, the barrel holder is provided with a second screw hole, and the screw The piece can be screwed into the second screw hole. The puller according to any one of claims 1 to 6, further comprising a plurality of extensions, each of which is connected between a body and each claw, each of which is provided with a pivot structure and a A connecting part, the pivotal structure is detachably pivotally connected to the body, each of the claw members is detachably provided on the connecting part, each of the extensions includes a first side surface, and the elastic abutting side portion of the spring card mechanism can be deformed The ground bounces against the first side; wherein, the first side of the extended body is slidably bounced into a smooth surface by the spring card mechanism. The puller according to claim 5, wherein the resilient side is an elastic tooth row, the first side faces the first screw hole and is perpendicular to the first side defines a reference direction, and the elastic tooth row may be Moving transversely to the reference direction with respect to the first side, a portion of the elastic tooth row can spring against the first side; the puller further includes an elastic member that springs against the main body and the latch mechanism. The first screw hole defines an axial direction, and the elastic card mechanism can elastically move relative to the main body along the axial direction. The main body is provided with a base and a limiting mechanism provided on the outer periphery, and the base is provided with the plurality of A pivot joint part, the spring card mechanism is provided between the limit mechanism and the base part; the pivot joint part is further provided with a second pivot hole opposite to the first pivot hole, and the aperture of the second pivot hole is smaller than the first pivot hole The diameter of the pivot hole; the puller also includes a barrel seat, which is detachably threaded in the first screw hole, the barrel seat is provided with a second screw hole, and the screw member can be screwed in the second Screw holes; the puller further includes a plurality of extensions, each of which is connected between a body and each claw, Each of the extensions is provided with a pivoting structure and a connecting portion, the pivoting structure is detachably pivotally connected to the body, each claw member is detachably provided on the connecting portion, and each of the extensions includes a first side, The elastic side of the elastic card mechanism can elastically deform against the first side; wherein, the first side is slidably elasticized by the elastic mechanism to a smooth surface; the first screw hole is provided with a diameter A ring-shaped step surface extending outwardly is provided with a ring flange which extends radially on the outer periphery of the cylinder seat and can abut against the ring-shaped step surface; the position-limiting mechanism is a C buckle; each of the first pivot hole and the second The pivot holes are respectively provided with at least one slanting ring end; the opposite sides of the main body and the spring card mechanism are respectively provided with magnetic pieces having the same magnetic properties.