TWI444253B - Wrench - Google Patents

Description

wrench

The invention relates to a hardware tool, in particular to an elongated wrench with anti-slip function.

Wrench is one of the indispensable hardware tools in daily life and production work. Generally, when a wrench is used to disassemble or install a bolt, if a force is insufficient, a hollow sleeve is usually directly placed on the wrench to increase the force arm, thereby achieving labor-saving purposes. However, when the operator holds the sleeve to drive the wrench to twist the bolt, the sleeve and the wrench may slip due to the unreliable connection, thereby damaging the wrench and even injuring the operator.

In view of this, it is necessary to provide a wrench that has a non-slip function while saving labor to avoid damaging the wrench and injuring the operator.

A wrench comprising a body having a cylindrical portion, a joint, a hollow sleeve and a magnetic member. The post portion includes a first end and a second end opposite the first end. The sleeve includes a barrel wall and at least one engaging portion disposed on an inner side of the barrel wall, the at least one engaging portion extending from a radially inner side of the barrel wall in a radial direction of the barrel wall. The outer wall of the body is provided with at least one snap-in groove corresponding to the at least one engaging portion and at least one engaging groove communicating with the snap-in groove. The card insertion slot is opened in a first direction, and the engagement slot is opened in a second direction, the first direction and the second direction The direction is vertical. The engaging portion is engaged with the corresponding engaging groove and is engaged with the engaging groove along the engaging groove to sleeve the sleeve on the body. The first end is provided with a square receiving hole, and the magnetic member is fixed to the bottom of the receiving hole. The joint is received in the receiving hole and is attached to the magnetic member to be connected to the first end.

Compared with the prior art, the wrench provided by the present invention is inserted into the corresponding snap-in groove by the engaging portion and is engaged with the engaging groove along the engaging groove to sleeve the sleeve on the body, thereby increasing The force arm makes the wrench more labor-saving; in addition, the engaging portion is limited by the engaging groove so that the sleeve does not slide with the body, thereby avoiding damage to other parts of the wrench and injury to the operator due to sliding .

10, 20‧‧‧ wrench

12, 22‧‧‧ ontology

120‧‧‧Cylinder Department

1202, 2202‧‧‧ first end

1204‧‧‧ second end

122‧‧‧Protruding

124‧‧‧Knock into the slot

126‧‧‧ snap groove

128‧‧‧ outer wall

14, 24, 34, 44, 54, 64‧‧‧ joints

140, 240‧‧‧ connection

142‧‧‧With the end

16‧‧‧Sleeve

162‧‧‧

164‧‧‧Care Department

224‧‧‧Magnetic parts

2206‧‧‧ receiving holes

2208‧‧‧ bottom

1 is a schematic perspective view of a wrench according to a first embodiment of the present invention.

2 is an exploded perspective view of the wrench of FIG. 1.

3 is a schematic cross-sectional view of the wrench of FIG. 1.

Figure 4 is a schematic cross-sectional view of the joint of the wrench of Figure 1 taken along line IV-IV.

Fig. 5 is a schematic cross-sectional view showing a wrench according to a second embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view showing a joint of a wrench according to a third embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view showing a joint of a wrench according to a fourth embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view showing a joint of a wrench according to a fifth embodiment of the present invention.

Fig. 9 is a schematic cross-sectional view showing a joint of a wrench according to a sixth embodiment of the present invention.

The first embodiment of the present invention will be further described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 3 , which is a wrench 10 according to a first embodiment of the present invention. The wrench 10 includes a body 12, an "L" shaped joint 14, and a hollow sleeve 16.

The body 12 includes a cylindrical body portion 120 and a protrusion 122. The cylindrical portion 120 includes a first end 1202 and a second end 1204 opposite the first end 1202. Two engaging grooves 124 and two engaging grooves 126 (only one shown in FIG. 2) are formed on the outer wall 128 of the cylindrical portion 120. The two engaging grooves 124 are opened in the first direction. In the embodiment, the first direction is the axial direction of the cylindrical portion 120, and the two engaging grooves 124 are symmetrically arranged with respect to the central axis of the cylindrical portion 120. . The engaging groove 126 is opened in the second direction. In the embodiment, the second direction is the circumferential direction of the cylindrical portion 120, and the two engaging grooves 126 are symmetrically arranged with respect to the central axis of the cylindrical portion 120. . Each of the engaging grooves 124 corresponds to one engaging groove 126, and the engaging groove 124 communicates with the corresponding engaging groove 126 to form an "L" shaped channel or a "T" shaped channel, that is, the first direction is vertical The second direction. In this embodiment, the snap-in groove 124 communicates with the corresponding engagement groove 126 to form an "L"-shaped channel. The protruding portion 122 is a spherical hexagonal prism, and the protruding portion 122 extends axially from the second end 1204. The protrusion 122 is used to cooperate with the head of the corresponding type of bolt to facilitate rotation.

It can be understood that the two engaging grooves 124 are not limited to being disposed symmetrically with respect to the central axis of the cylindrical portion 120 in the embodiment, and may be disposed at other intervals, and the two engaging grooves 126 are not limited to In the present embodiment, the central portion of the cylindrical portion 120 is symmetrically disposed, and may be disposed at other intervals.

The joint 14 includes a connecting end 140 and a mating end 142 away from the connecting end 140. The connecting end 140 is fixedly connected to the first end 1202. In the present embodiment, the joint 14 is integrally formed with the body 12. The mating end 142 is parallel to the axis of the cylinder 120 The cross section of the direction is a regular hexagon (Fig. 4), which is used to cooperate with the head of the hexagon socket bolt for easy rotation.

Both ends of the sleeve 16 are open ends. The sleeve 16 includes a cylindrical wall 162 and two engaging portions 164 corresponding to the two engaging grooves 124 and the two engaging grooves 126. The two engaging portions 164 are disposed at an inner side of the cylindrical wall 162 and extend radially from an inner side of the cylindrical wall 162, and the two engaging portions 164 are located at a port of the open end of the sleeve 16. In use, the engaging portion 164 is inserted into the corresponding engaging groove 124 along the axial direction of the cylindrical portion 120. After reaching the end of the engaging groove 124, the engaging portion 164 is along the circumference of the cylindrical portion 120. The direction of rotation is inserted into the engaging groove 126 so that the sleeve 16 is sleeved on the body 12. At this time, the engaging portion 164 is defined by the engaging groove 124 in the axial direction of the cylindrical portion 120 and cannot move in the axial direction. If the engaging portion 164 is retracted to the card along the circumferential direction of the cylindrical portion 120 The sleeve 16 can be removed by further withdrawing from the insertion groove 124 in the axial direction of the cylindrical portion 120.

It can be understood that the sleeve 16 is not limited to being open at both ends, and may have an open end at one end and a closed end at the other end. The engaging portion 164 is disposed at the port of the open end.

Since the cross-section of the mating end 142 in a direction parallel to the axis of the cylinder portion 120 is a regular hexagon, the wrench 10 is typically used to tighten or loosen the hexagon socket head bolt. When the hexagonal bolt is twisted by the wrench 10, the operator holds the body 12 and snaps the mating end 142 into the head of the hexagon socket head bolt to perform screwing or unscrewing. In addition, when the engaging portion 164 is engaged with the corresponding engaging groove 124 and is engaged with the engaging groove 126 along the engaging groove 124 to sleeve the sleeve 16 on the body 12, the operator can hold the hand. The sleeve 16 is used to tighten or loosen the hexagon socket bolt. At this time, the sleeve 16 is added with a force arm, which is more labor-saving to rotate, and the engagement portion 164 is restricted by the engagement groove 126 so that the sleeve 16 does not Sliding with the body 12 to avoid damage to other parts of the wrench 10 due to sliding and to the operator. Of course, the operator can also hold the mating end 142 and snap the protrusion 122 into the head of the bolt of the corresponding model to perform tightening or unscrewing.

The wrench 10 of the present invention is inserted into the corresponding engaging groove 124 by the engaging portion 164 and is engaged with the engaging groove 126 along the engaging groove 124 to sleeve the sleeve 16 on the body 12, thereby increasing The force arm makes the wrench 10 more labor-saving; in addition, the engaging portion 164 is restricted by the engaging groove 126 so that the sleeve 16 does not slide with the body 12, thereby avoiding damage to other parts of the wrench 10 due to sliding. And injured to the operator.

Please refer to FIG. 5, which is a wrench 20 provided for the second embodiment. The wrench 20 of the present embodiment is different from the wrench 10 of the first embodiment in that the body 22 further includes a magnetic member 224. The first end 2202 defines a square receiving hole 2206. The magnetic member 224 is fixed to the bottom portion 2208 of the receiving hole 2206. The connecting end 240 is a hexagonal prism that is engaged with the receiving hole 2206. The connecting end 240 is received in the receiving hole 2206 and is connected to the first end 2202 by being adsorbed on the magnetic member 224. In the present embodiment, the connecting end 240 is made of iron or an alloy containing iron. The magnetic member 224 is fixed to the bottom portion 2208 of the receiving hole 2206 by gluing or snapping.

The beneficial effects of the wrench 20 of the present embodiment are the same as those of the wrench 10 of the first embodiment, and further, the connecting end 240 is received in the receiving hole 2206 and is adsorbed on the magnetic member 224. Connected to the first end 2202, the joint 24 is replaceable. If the joint 24 is worn or damaged, or when a different type of bolt is encountered, the joint 24 can be quickly replaced.

It can be understood that the joint 24 can also be connected to the first end 2202 by a screw connection. Specifically, the connecting end 240 of the joint 24 is provided with an external thread (not shown), and the first end 2202 is provided with a threaded hole. (not shown), the external thread is screwed to the threaded hole A joint 24 is connectable to the first end 2202. At this time, the joint 24 can also be easily replaced.

Please refer to FIG. 6, which is a schematic cross-sectional view of a joint 34 of a wrench according to a third embodiment of the present invention. The end of the fitting end (not shown) of the joint 34 is provided with a regular hexagonal hole, and the wrench is suitable for the bolt with the head being a hexagonal prism.

7 to 9, a cross-sectional view of the joints 44, 54 and 64 of the wrench according to the fourth to sixth embodiments of the present invention. Among them, the joint 44 is suitable for the inner triangular bolt, the joint 54 is suitable for the "ten" shaped bolt, and the joint 64 is suitable for the "one" shaped bolt.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Wrench

12‧‧‧Ontology

120‧‧‧Cylinder Department

1202‧‧‧ first end

1204‧‧‧ second end

122‧‧‧Protruding

124‧‧‧Knock into the slot

126‧‧‧ snap groove

128‧‧‧ outer wall

14‧‧‧Connectors

140‧‧‧Connected end

142‧‧‧With the end

16‧‧‧Sleeve

162‧‧‧

164‧‧‧Care Department

Claims (8)

A wrench comprising a body having a cylindrical portion and a joint, the cylindrical portion including a first end and a second end opposite the first end, the improvement being that the wrench further comprises a hollow sleeve The sleeve includes a cylindrical wall and at least one engaging portion disposed on the inner side of the cylindrical wall, the at least one engaging portion extending from the inner side of the cylindrical wall in a radial direction of the cylindrical wall, and the outer wall of the body is opened At least one engaging slot corresponding to the at least one engaging portion and at least one engaging slot communicating with the engaging slot, the engaging slot is opened in a first direction, and the engaging slot is opened in a second direction, The first direction is perpendicular to the second direction, and the engaging portion is engaged with the corresponding engaging groove and is engaged with the engaging groove along the engaging groove to sleeve the sleeve on the body, and the body further includes a The magnetic member has a square receiving hole, and the magnetic member is fixed to the bottom of the receiving hole. The connector is received in the receiving hole and is attached to the magnetic member to be connected to the first end. The wrench of claim 1, wherein the cylindrical portion has a cylindrical shape, the first direction is an axial direction of the cylindrical portion, and the second direction is a circumferential direction of the cylindrical portion. The wrench of claim 2, wherein the connector includes a connecting end and a mating end away from the connecting end, the connecting end is a hexagonal prism engaged with the receiving hole, and the connecting end is received in the receiving hole And being attached to the magnetic member and connected to the first end. The wrench of claim 3, wherein the body further comprises a protrusion of a spherical hexagonal cylinder extending from the second end in an axial direction of the cylindrical portion. The wrench of claim 4, wherein one end of the sleeve is an open end and the other end is a closed end, and the at least one engaging portion is disposed at a port of the open end. The wrench of claim 4, wherein both ends of the sleeve are open ends, and the at least one engaging portion is disposed at the port of the open end. The wrench of claim 6, wherein the cross section of the mating end in a direction parallel to the axis of the cylinder portion is a regular hexagon, a triangle, a "ten" or a "one". The wrench of claim 6, wherein the end face of the mating end is provided with a regular hexagonal hole.