TWI413577B - A bending mechanism of hand tool and a hand tool comprising the same - Google Patents

Abstract

Provided are a bending mechanism of a hand tool and a hand tool including the same. The bending mechanism of the hand tool includes a rod body and a bending portion. A working portion is formed at one end of the rod body, and a holding portion is formed at the other end of the rod body. The bending portion is disposed between the working portion and the holding portion and includes a pivot trough and a pivot end which is arranged in the pivot trough. The pivot trough has a trough opening and a limiting structure. The pivot end is able to move between a first position and a second position. The pivot end is unable to bend pivotally at the first position, but is able bend pivotally at the second position. The hand tool of the present invention includes the bending mechanism and a ratchet wheel head connected with the working portion, wherein a polyhedron is formed on the working portion, a coupling portion is disposed on the polyhedron, and the coupling portion fixes the ratchet wheel head to the working portion. The bending mechanism of the hand tool can be conveniently used by a user to apply a force to operate the hand tool, so that convenience for operations is effectively increased.

Description

Hand tool bending mechanism and hand tool including the bending mechanism

The present invention relates to a bending mechanism for a hand tool and a hand tool including the bending mechanism.

Generally, the hand tools sold on the market are widely used in the mechanical maintenance related industries. However, most of the rods do not have the function of being bendable, and most of the mechanical machines have complicated structures, so the hand is maintained during maintenance. The operating space of the tool is generally narrow. When used in a narrow and extended working environment, the length of the rod exposed outside the working environment is not convenient for the user to hold and apply the hand tool, and the user often It takes a lot of effort to grip the rod that is not enough to hold the length and apply force. Such hand tools have yet to be improved in terms of ease of operation.

On the other hand, when the non-bending hand tool is used in a narrow space, even if the length of the rod body is long enough, it is easy to touch other components during operation due to the narrow working environment, and the lever body cannot be smoothly operated. Such hand tools are more operationally limited by the working environment.

The reason is that, in the spirit of perseverance and the purpose of excellence, we actively research and improve, and through long-term efforts and experiments, finally developed and designed the present invention.

The main object of the present invention is to provide a bending mechanism and a hand tool for a hand tool Hand tool for the bending mechanism.

In order to achieve the above object, the present invention provides a bending mechanism for a hand tool and a hand tool including the bending mechanism, the bending mechanism comprising a rod body and at least one bending portion, the hand tool comprising the bending mechanism and A ratchet head.

The rod body has two ends, and the rod body forms a grip portion at one end and a working portion at the other end. The bent portion includes a pivot slot and a pivoting end. The bent portion is disposed between the grip portion and the working portion. The pivot slot has an open slot, and the pivot slot is axially located in the slot wall. Forming a U-shaped opening, the opening is in communication with the slot, the pivoting end is disposed in the pivot slot, and the pivoting end is switchable between a first position and a second position, wherein the pivoting end is In the first position, the limiting structure can not pivot the pivoting end relative to the working portion. When the pivoting end is in the second position, the pivoting end can be pivoted in the slot. The rod is generally L-shaped. Since the groove wall of the pivot groove is closed corresponding to one side of the opening, the pivoting end can only be pivoted and bent toward the opening direction. The bending portion further includes at least one positioning group, and the positioning group includes a first positioning member, and the first positioning member is movable in the sliding slot. When the pivoting end is in the first position, the first positioning member is located at one end of the sliding slot; when the pivoting end is in the second position, the first positioning member is located at the other end of the sliding slot.

According to the above structure, the hand tool of the present invention comprises the bending mechanism and a ratchet head, and the working portion forms a polyhedron, and the polyhedron is provided with a latching portion, and the latching portion fixes the ratchet head In the work department.

In summary, the bending mechanism of the hand tool of the present invention and the bending mechanism therewith The hand tool makes it easier for the user to use the bending mechanism to apply the force to operate the hand tool, so that the operation convenience is effectively improved.

In the following, the structural features of the present invention and the intended effects thereof will be described in the preferred embodiments, and are not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 6 , the present invention provides a bending mechanism for a hand tool and a hand tool including the bending mechanism. The bending mechanism includes a rod body 1 and at least one bending portion 2, and the hand tool includes The bending mechanism and a ratchet head 3.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , in the embodiment, the rod body has two ends, and the rod body forms a grip portion 11 at one end and a working portion 12 at the other end. The bending portion 2 includes a pivoting groove 21 and a pivoting end 22, and the bending portion 2 is disposed between the holding portion 11 and the working portion 12, and the pivoting end 22 is disposed in the pivoting groove 21 The pivoting slot 21 has an open slot 211 and a limiting structure. The pivoting end 22 has a sliding slot 221, and the pivoting end 22 is switchable between a first position and a second position. When the swinging end 22 is in the first position, the limiting structure prevents the pivoting end 22 from pivoting relative to the working portion 12, and when the pivoting end 22 is in the second position, the pivoting end 22 can be The pivot is bent in the notch 211, so that the rod is L-shaped.

The pivoting groove 21 defines a concave bottom 212 at the bottom. When the pivoting end 22 is in the first position, the pivoting end 22 is attached to the concave bottom 212. Further, the limiting structure includes two opposite abutting steps 213, 213' and two opposite side surfaces 214, 214', and a positioning hole 215 is formed on the side surface 214, and a side is formed on the side surface 214'. a positioning slot 216, the pivot slot 21 is formed with a U-shaped opening 217 in the axial direction of the slot wall, the opening 217 is in communication with the slot 211, and the two side surfaces 214, 214' are respectively located adjacent to the slot 217. On both sides, the pivoting end 22 is engaged with the opening 217 when the pivoting end 22 is pivoted.

Referring to FIG. 2 and FIG. 2A, the pivoting end 22 forms two abutting surfaces 222, 222' on the outer peripheral wall. When the pivoting end 22 is in the first position, the two abutting surfaces 222, 222' abut each other. The two latches are stepped on the steps 213 and 213 ′ so that the grip portion 11 cannot be pivoted relative to the working portion 12 . The pivoting end 22 further defines a receiving hole 223 corresponding to the positioning slot 216 , and the sliding slot 221 corresponds to the positioning hole 215 . In addition, the bending portion 2 further includes a positioning group, the positioning group includes a first elastic member 224, a second elastic member 225, a first positioning member 226 and a second positioning member 227, the first positioning member 226 can move in the chute 221. When the pivoting end 22 is in the first position, the first positioning member 226 is located at one end of the sliding slot 221 . When the pivoting end 22 is in the second position, the first positioning member 226 is located at the other end of the sliding slot 221 . Further, the first elastic member 224, the second elastic member 225 and the second positioning member 227 are received in the receiving hole 223, and the second positioning member 227 is disposed on the first elastic member 224 and the first Between the two elastic members 225, the first positioning member 226 is disposed between the sliding slot 221 and the positioning hole 215, as shown in FIGS. 3 and 3A. Preferably, the first positioning member 226 and the second positioning member 227 are each a ball.

In addition, the receiving hole 223 has a stepped surface 2231. One end of the first elastic member 224 abuts against the level surface 2231, and the other end abuts against the positioning groove. The side 214' of the 216 allows the pivoting end 22 to be securely placed in the first position or the second position.

As described above, referring to FIG. 3A, when the pivoting end 22 is in the first position, the second positioning member 227 is located below the positioning slot 216 and is received in the receiving hole 223, and the second The positioning member 227 presses the second elastic member 225. The first positioning member 226 is located at one end of the sliding portion 221 adjacent to the working portion 12, and the first elastic member 224 is continuously positioned at the positioning groove 216. The side 214' allows the pivoting end 22 to be securely placed in the pivot slot 21 and conform to the recessed bottom 212. In addition, each of the two abutting faces 222, 222' also abuts against each of the two abutting steps 213, 213', so that the pivoting end 22 cannot be deflected in either direction. Referring to FIG. 4 and FIG. 4A , when the pivoting end 22 is moved upward to the second position, the pivoting end 22 is away from the concave bottom 212 of the pivot slot 21 , and the two abutting surfaces 222 , 222 ′ are also away from the Two latching steps 213, 213', and the first positioning member 226 will move upward with the pivoting end 22. At the same time, since the second elastic member 225 pushes the second positioning member 227 outwardly toward the receiving hole 223, the second positioning member 227 can be dome-shaped and clamped to the positioning slot 216 when moving to the positioning slot 216. The pivoting end 22 is prevented from moving further upward and is fixed to the second position. Referring to FIG. 4, when the pivoting end 22 is moved to the second position, the first positioning member 226 moves from the sliding slot 221 near one end of the working portion 12 to the sliding slot 221 near the concave bottom 212. One end.

Referring to FIG. 4 and FIG. 5 , after the pivoting end 22 is fixed to the second position, the grip portion 11 is pivoted relative to the pivoting end 22 to make the grip portion 11 It has a vertical relationship with the working unit 12. At this time, the pivoting end 22 is engaged with the opening 217. Since the groove wall of the pivot groove 21 is closed corresponding to one side of the opening 217, the pivoting end 22 can only be pivoted and bent toward the opening 217. In addition, in the above embodiment, the first positioning member is disposed on one side of the positioning hole, and the second positioning member is disposed on one side of the positioning groove. However, the present invention does not limit the relative position of the positioning member, and in other embodiments, The first positioning member is disposed on one side of the positioning groove, and the second positioning member is disposed on one side of the positioning hole, and the positional direction of the first positioning member and the second positioning member are interchanged.

With the above structure, the hand tool of the present invention comprises the above-mentioned bending mechanism and a ratchet head 3, and can further produce a combination change of FIG. 6, FIG. 7, FIG. 7A, FIG. 7B, FIG. 8 and FIG. Adapt to the limitations of various work environments. Referring to FIG. 6 , in the second embodiment, the hand tool includes the ratchet head 3 , and the hand tool forms a polygonal body 121 on the working portion 12 , and a locking portion 122 is disposed on the polygonal body 121 . The latching portion 122 secures the ratchet head 3 to the working portion 12, and the latching portion 122 can be a ball as shown in FIGS. 2 and 6. In other possible embodiments, the ball may be replaced with other card functional components such as a block or a stud.

Referring to FIG. 7, in the third embodiment of the hand tool of the present invention, the working portion 12 can also be provided with a push switch 123 for controlling the operation of the latch portion 122. Referring to FIG. 7A and FIG. 7B, the push switch 123 is further referred to. The utility model includes a movable rod 1231, a spring 1232 and a button 1233. The movable rod 1231 and the spring 1232 are disposed in the working portion 12. When the button 1233 is pressed, the movable rod 1231 is moved to The spring 1232 is pressed down so that the latching portion 122 can be received in the working portion 12, so that the ratchet head 3 can be smoothly combined with the working portion 12; when the button 1233 is released, the spring 1232 is pushed up The top movable rod 1231 causes the latching portion 122 to be exposed by the movable rod 1231 to be exposed to the working portion 12, so that the ratchet head 3 can be firmly engaged with the working portion 12.

Furthermore, referring to the fourth embodiment of the hand tool of the present invention shown in FIG. 8 and FIG. 8A, the working portion 12 can also be directly processed to form a screwdriver or other similar wrench structure. Thereby, the folding mechanism 2 is further provided for use in the near grip portion, and the hand tool of the present invention can be used alone without the need to incorporate the ratchet head 3, and has a bending function.

Summarizing the above, the bending mechanism of the hand tool of the present invention and the hand tool including the bending mechanism effectively improve the user's convenience in operation, have a progressive effect, comply with the relevant provisions of the patent law, and file a patent according to law. To apply, I would like to ask the Bureau to approve the patent as soon as possible.

1‧‧‧ rod body

11‧‧‧ grip

12‧‧‧Working Department

121‧‧‧Polyhorn

122‧‧‧Card Department

123‧‧‧Press switch

1231‧‧‧ activity pole

1232‧‧ ‧ spring

1233‧‧‧ button

2, 2'‧‧‧ bending mechanism

21‧‧‧ pivot slot

211‧‧‧ notch

212‧‧‧ concave bottom

213, 213’ ‧ ‧ Carmen Stairs

214, 214’‧‧‧ side

215‧‧‧Positioning holes

216‧‧‧ positioning slot

217‧‧‧ openings

22‧‧‧ pivoting end

221‧‧ ‧ chute

222, 222’ ‧ ‧ 扺 扺

223‧‧‧ accommodating holes

2231‧‧‧Class

224‧‧‧First elastic parts

225‧‧‧Second elastic parts

226‧‧‧First positioning piece

227‧‧‧Second positioning parts

3‧‧‧ ratchet head

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

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

2A is a partial enlarged view of FIG. 2.

Figure 3 is a side elevational view of the pivotal end of the present invention in a first position.

3A is a front partial cross-sectional view of the pivotal end of the present invention in a first position.

Figure 4 is a side elevational view of the pivotal end of the present invention in a second position.

4A is a front partial cross-sectional view of the pivotal end of the present invention in a second position.

Figure 5 is a perspective view of a preferred embodiment of the present invention.

Figure 6 is a partially exploded view of a second embodiment of the hand tool of the present invention.

Figure 7 is a schematic illustration of a third embodiment of the hand tool of the present invention.

Figure 7A is a partially exploded view of a third embodiment of the hand tool of the present invention.

Figure 7B is a partial side cross-sectional view showing a third embodiment of the hand tool of the present invention.

Figure 8 is a schematic illustration of a fourth embodiment of the hand tool of the present invention.

Figure 8A is a perspective view showing a fourth embodiment of the hand tool of the present invention.

1‧‧‧ rod body

11‧‧‧ grip

12‧‧‧Working Department

2‧‧‧Bending mechanism

Claims (8)

A bending mechanism for a hand tool includes: a rod body having two ends, the rod body forming a working portion at one end and a grip portion at the other end; at least one bent portion including a pivot groove and a pivot a pivoting portion is disposed between the working portion and the holding portion, the pivoting end is disposed in the pivoting groove, the pivoting groove has an open slot and a limiting structure, the pivot The swing end has an axially extending and elongated slot, and the pivoting end is switchable between a first position and a second position. When the pivoting end is in the first position, the limiting structure causes the The pivoting end is not pivotable relative to the working portion. When the pivoting end is in the second position, the pivoting end can be pivoted in the slot, so that the rod is generally L-shaped; The bending portion further includes at least one positioning group, the positioning group includes a first positioning member, and the first positioning member is located at one end of the sliding slot when the pivoting end is in the first position; In the second position, the first positioning member is located at the other end of the sliding slot; wherein the limiting structure comprises a positioning hole disposed in the pivot slot, the first A positioning member is positioned in the positioning hole, and the pivoting end is axially movable relative to the first positioning member through the sliding slot; wherein the limiting structure comprises two oppositely disposed in a periphery of the top ring of the pivoting groove Abutting the step, the pivoting end forming a second abutting surface on the outer peripheral wall, wherein the pivoting end of the pivoting groove surrounds the pivoting end of the pivoting groove in the first position, and the two abutting Abutting against the two-card abutment step in the pivot slot, so that the grip portion cannot be opposite The pivoting of the working part is bent. The bending mechanism of the hand tool according to claim 1, wherein the pivoting groove forms a concave bottom at a bottom portion, and one side wall of the concave bottom is located opposite to the notch of the pivoting groove, and the pivoting end is at the first In position, the pivoting end is inserted into the concave bottom and conforms to the concave bottom. The bending mechanism of the hand tool according to claim 2, wherein the pivoting groove further comprises two opposite sides, one of the two sides forming the positioning hole, and the other forming a positioning groove, the pivoting end further The accommodating hole corresponds to one of the positioning hole and the positioning groove, and the sliding groove corresponds to the positioning hole and the other of the positioning groove. The bending mechanism of the hand tool of claim 3, wherein the positioning group further comprises a first elastic member, a second elastic member and a second positioning member, the first elastic member and the second elastic member The second positioning member is received in the receiving hole, and the second positioning member is disposed between the first elastic member and the second elastic member. The bending mechanism of the hand tool according to claim 4, wherein the first positioning member and the second positioning member are each a ball. The bending mechanism of the hand tool according to any one of claims 1 to 5, wherein the pivoting groove is formed with a U-shaped opening in the axial direction of the groove wall, the opening is in communication with the notch, and the two sides are located at each The slot wall is adjacent to the opening, and the pivoting end is pivoted to engage with the opening. The bending mechanism of the hand tool according to claim 6, wherein the receiving hole has a class surface, the first elastic member abuts against the class surface, and the other end abuts against the second One of the sides. A hand tool comprising a bending mechanism of a hand tool as claimed in claim 1 and a ratchet head, wherein the working portion forms a polygonal body, and the polygonal body is provided with a latching portion, the latching portion The ratchet head is fastened to the working part.