TWI412437B - Wrench structure - Google Patents

Abstract

A wrench comprises a drive head, a handle, a control element and a positioning assembly. The handle of the wrench and the drive head can be controlled to rotate relative to each other and fixed after rotation by controlling the control element to move within the drive head. By such arrangements, parts cost and assembly cost can be both reduced.

Description

Wrench structure

The invention relates to a wrench, in particular to a wrench capable of rotating relative to the driver and the drive head.

Whether it is an open-end wrench, a wrench or a ratchet wrench, the handle and the drive head are integrally formed, and the operating relationship is also fixed. In the general barrier-free space, the operation is not There will be too many problems, but in some special working spaces, it may be hindered by other objects or structures, and the wrench tool cannot be shackled or pinched (cap), or the wrench cannot be operated. The difficulty of its loading and unloading operations.

To this end, refer to the Republic of China Application No. 088207897 "Wrench's movable handle device", which is mainly designed to adjust the relationship between the handle and the drive head according to the lock and unloading space, so as to obtain a better operational mode. In order to achieve the above-mentioned effects, the wrench of this type will result in too many components required, resulting in defects in parts cost and assembly cost.

Therefore, how to develop a wrench that can solve the above defects is the motivation for the research and development of the present invention.

SUMMARY OF THE INVENTION The object of the present invention is to provide a wrench structure that can relatively rotate the grip of the wrench with the drive head by means of a relatively compact assembly to reduce component cost and assembly cost.

In order to achieve the foregoing objective, a wrench structure according to the present invention includes: a driving head, one end is a driving portion for driving a member to be driven, and the other end is a connecting portion, and the connecting portion includes a first pivot An ear, a first hole disposed on the first pivot hole, a plurality of first teeth disposed on the wall of the first hole, a stop disposed on the wall of the first hole, a second pivot, and a second a second hole corresponding to the first hole, a second hole disposed on the wall of the second hole, and a receiving space defined by the first and second pivots; a handle, one end is a grip for holding, and the other end is a pivoting portion disposed in the accommodating space, the pivoting portion has a pair of perforations that should be first and second holes; and a control member movablely Provided in the first and second holes and the perforations, and includes a first engaging portion that disengages or engages the first tooth and is stopped by the blocking portion, a first meshing portion that engages the perforating hole and engages or disengages the second tooth a second engaging portion capable of driving the first engaging portion when the first engaging portion engages the first tooth and the second engaging portion engages the second tooth The moving head rotates, when the first engaging portion is disengaged from the first tooth and the second engaging portion is disengaged from the second tooth, the handle and the driving head are relatively rotatable; a positioning group is disposed in the second hole and The second toothing of the control member is stopped.

Preferably, a groove is defined between the first tooth of the first pivot of the driving head and the blocking portion, and is located in the groove when the first engaging portion of the control member is disengaged from the first tooth.

Preferably, the control member further includes a first end portion movable between the groove and the blocking portion of the first pivoting arm, and a second tooth capable of being in the second pivoting ear and the positioning group The second end of the movement.

Preferably, the first end of the control member has a first end surface for pressing, and the second end portion has a second end surface for pressing.

Preferably, the second hole of the second pivot hole is recessed with a card slot, and the positioning group includes a first fastener disposed on the second hole wall and abutting against the second tooth, and a card is disposed thereon. a second fastener of the card slot and an annular block that is buckled by the second fastener and abuts against the first fastener.

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

Referring to Figures 1 to 4, a wrench structure provided by an embodiment of the present invention is mainly composed of a driving head 10, a handle 20, and a plurality of control members 30 disposed on the driving head 10 and the handle 20. And a positioning group 40 disposed on the driving head 10, wherein: the driving head 10 has a driving portion 101 for driving a member to be driven (not shown) and a connecting portion 102 at the other end. The connecting portion 102 includes a first pivot 11 , a first hole 111 disposed in the first pivot 11 , a first tooth 112 disposed on the wall of the first hole 111 , and a first tooth 111 disposed in the first hole 111 . a hole 113 and a portion 113 closer to the outer side than the first tooth 112, a groove 114 defined by the first tooth 112 and the blocking portion 113, a second pivot 12, and a second pivot 12 and corresponding to the second hole 121 of the first hole 111, a plurality of second teeth 122 disposed on the hole wall of the second hole 121 and corresponding to the first tooth 112, and a recessed wall of the second hole 121 The second tooth 122 is adjacent to the outer card slot 123 and an accommodation space 13 defined by the first and second pivots 11 and 12.

The handle 20 has a grip portion 21 at one end and a pivot portion 22 disposed on the accommodating space 13 at the other end. The pivot portion 22 has a pair of first and second holes 111 and 121. The perforations 221 , and the respective teeth of the perforations 221 correspond to the first teeth 112 of the first hole 111 and the second teeth 122 of the second hole 121 .

The control member 30 is movably disposed on the first and second holes 111, 112 and the perforation 221, and includes a first engaging portion 31 that disengages or engages the first tooth 112 and is stopped by the blocking portion 113, a second engaging portion 32 that engages the tooth hole 221 and engages or disengages the second tooth 122. When the first engaging portion 31 engages the first tooth 112 and the second engaging portion 32 engages the second tooth 122, The handle 20 can drive the driving head 10 to rotate. When the first engaging portion 31 is separated from the first tooth 112 and located in the groove 114, and the second engaging portion 32 is separated from the second tooth 122, the handle is The driving head 30 is rotatable relative to the driving head 10. In addition, the control member 30 further includes a first movable end portion 331 movable between the recess 114 and the blocking portion 113 of the first pivoting lug 11 and The end portion 33, and a second end portion 34, which is movable between the second tooth 122 of the second pivot 12 and the positioning group 40, has a second end portion 34 for pressing the second end surface 341.

The positioning group 40 is disposed on the second hole 121 and stops the second toothing portion 32 of the control member 30, so as to cooperate with the blocking portion 113 of the driving head 10 to prevent the control member 30 from being disengaged from the driving head 10 and the grip. The shank 20 includes a first fastener 41 disposed on the wall of the second hole 121 and abutting against the second tooth 122, a second fastener 42 latched on the slot 123, and a second fastener 42 The second fastening member 42 is snapped and abuts against the annular block 43 of the first fastening member 41.

The above description is the structure and configuration description of each main component of the embodiment of the present invention.

As for the operation mode and the effect of the embodiment of the present invention, the following description will be made.

First, the handle 20 of the wrench and the driving head 10 are relatively rotatable.

Referring to FIGS. 5-7, the second end surface 341 of the control member 30 is first pressed to displace the control member 30 until the first engaging portion 31 abuts against the blocking portion 113 of the first pivot 11 of the driving head 10. At this time, the first engaging portion 31 of the control member 30 is separated from the first tooth 112 of the first pivot 11 and located in the recess 114, and the second engaging portion 32 is only engaged with the perforation of the handle 20. The second tooth 122 of the second pivot 12 is 221, so that the control member 30 is engaged with the handle 20 and is not in contact with the drive head 10, so that the handle 20 can be opposite to the drive head 10. Rotating, at this time, the user can adjust the relative angle of the handle 20 and the driving head 10 as needed.

Secondly, the handle 20 of the wrench is positioned after being rotated by the driving head 10.

When the user adjusts the relative angle between the handle 20 and the driving head 10, pressing the first end surface 331 of the control member 30 causes the control member 30 to be displaced downward until the second engaging portion 32 abuts the Positioning the group 40, at this time, the first engaging portion 31 of the control member 30 is engaged with the first tooth 112 of the first pivot 11 and the second engaging portion 32 remains engaged with the tooth hole 221 of the handle 20 and meshed In the second tooth 122 of the second pivot 12, the control member 30 is simultaneously engaged with the handle 20 and the driving head 10, so that the handle 20 and the driving head 10 cannot rotate relative to each other. The angle of the grip 20 and the drive head 10 is fixed, and the lock operation is performed.

Accordingly, the present invention only needs to control the relative displacement of the control member 30 in the driving head 10 to control the relative rotation of the handle 20 and the driving head 10 of the wrench, and to obtain positioning after the rotation, and the operation mode is quite simple. In addition, the present invention can be composed of the driving head 10, the handle 20, the control member 30, and the positioning group, and achieve the effect of the relative rotation of the handle 20 of the wrench and the driving head 10. Therefore, the present invention can be surely obtained. Reduce the cost of parts and assembly costs.

In the above, the above embodiments and the drawings are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, that is, the equal changes and modifications made by the scope of the patent application of the present invention should be It is within the scope of the patent of the present invention.

10‧‧‧Drive head

101‧‧‧ Drive Department

102‧‧‧Connecting Department

11‧‧‧ first pivot

111‧‧‧ first hole

112‧‧‧first tooth

113‧‧ ‧ blocking

114‧‧‧ Groove

12‧‧‧Second pivot

121‧‧‧second hole

122‧‧‧second tooth

123‧‧‧ card slot

13‧‧‧ accommodating space

20‧‧‧Handle

21‧‧‧ grip

22‧‧‧ pivotal department

221‧‧‧Aperture

30‧‧‧Controls

31‧‧‧First meshing section

32‧‧‧Second joint

33‧‧‧First end

331‧‧‧ first end face

34‧‧‧second end

341‧‧‧second end face

40‧‧‧ positioning group

41‧‧‧First fastener

42‧‧‧Second fasteners

43‧‧‧ ring block

Figure 1 is a perspective view of the present invention.

Fig. 2 is a perspective exploded view of the present invention.

Fig. 3 is a cross-sectional view showing the state in which the driving head and the grip cannot be adjusted in relative angles.

Fig. 4 is a partial enlarged view of Fig. 3.

Fig. 5 is a cross-sectional view showing the state in which the driving head and the grip are adjustable in relative angles.

Fig. 6 is a partially enlarged view of Fig. 4.

Figure 7 is a schematic illustration of the rotation of the handle of the present invention relative to the drive head.

10‧‧‧Drive head

101‧‧‧ Drive Department

102‧‧‧Connecting Department

11‧‧‧ first pivot

111‧‧‧ first hole

112‧‧‧first tooth

113‧‧ ‧ blocking

114‧‧‧ Groove

12‧‧‧Second pivot

121‧‧‧second hole

122‧‧‧second tooth

123‧‧‧ card slot

13‧‧‧ accommodating space

20‧‧‧Handle

21‧‧‧ grip

22‧‧‧ pivotal department

221‧‧‧Aperture

30‧‧‧Controls

31‧‧‧First meshing section

32‧‧‧Second joint

33‧‧‧First end

331‧‧‧ first end face

34‧‧‧second end

341‧‧‧second end face

40‧‧‧ positioning group

41‧‧‧First fastener

42‧‧‧Second fasteners

43‧‧‧ ring block

Claims (3)

A wrench structure is composed of a driving head, a handle, a control member, and a positioning group: one end of the driving head is a driving portion for driving the member to be driven, and the other end is a connecting portion, and the connecting portion includes a first pivot, a first hole disposed on the first pivot, a first tooth disposed on the wall of the first hole, a stop disposed on the wall of the first hole, and a second pivot a second hole disposed in the second pivot and corresponding to the first hole, a plurality of second teeth disposed on the wall of the second hole, and an accommodation defined by the first and second pivots a space, and a groove is defined between the first tooth and the blocking portion of the first pivot; the handle has one end for holding the grip and the other end is a pivot portion disposed in the receiving space The pivoting portion has a pair of first and second holes, and the control member is movably disposed on the first and second holes and the perforating hole, and includes a disengagement or engagement of the first tooth and a first engaging portion of the stopper stop, a second engaging portion that engages the perforating hole and engages or disengages the second tooth, when the first engaging portion engages the first tooth and When the second engaging portion engages the second tooth, the handle can drive the driving head to rotate, and when the first engaging portion is disengaged from the first tooth and the second engaging portion is disengaged from the second tooth, the handle is The driving head is relatively rotatable, and the first engaging portion is located in the groove. In addition, the control member further includes a first end portion movable between the groove and the blocking portion of the first pivoting arm, and a Second end The positioning group is disposed in the second hole and stops the second toothing portion of the control member, so that the second end of the control member can be between the second tooth of the second pivot ear and the positioning group Mobile. The wrench structure of claim 1, wherein the first end of the control member has a first end surface for pressing, and the second end portion has a second end surface for pressing. The wrench structure of claim 1, wherein the second hole of the second pivot hole is recessed with a card slot, and the positioning group comprises a wall disposed on the second hole and abutting the second tooth. The first fastening component, a second fastening component disposed on the card slot, and an annular block that is buckled by the second fastening component and abuts against the first fastening component.