JP3000297U - wrench - Google Patents

Abstract

(57) [Abstract] [Purpose] When rotating and tightening a replenishing socket having a hexagonal hole in the bottom wall, the wrench is prohibited from sliding along the hexagonal hole, thereby realizing efficient work. [Structure] The wrench 10 includes a horizontal shaft 11 and a vertical shaft 12 that extend in an orthogonal positional relationship. The vertical shaft 12 includes a hexagonal tip portion 14 having a hexagonal cross-sectional shape and a circular flange portion 13 having a circular cross-sectional shape. Horizontal axis 1
1 comprises hexagonal tips 17, 20 and circular flanges 16, 19 at both ends.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wrench as a rotary fastening tool, and more particularly to a wrench for rotationally fastening a replenishing socket having a cylindrical portion and a bottom wall portion and having a hexagonal hole in the bottom wall portion. .

[0002]

[Prior art]

 For example, when installing a water pipe in a house, a replenishment socket is used.

Referring to FIG. 10, a straight pipe 1 and an elbow 2 are arranged in a wall 4. The connection port of the elbow 2 is located at a position recessed from the outer surface of the wall 4. In such a case, the replenishment socket 3 is used.

With reference to FIG. 11, the replenishment socket 3 includes a cylindrical portion 31 and a bottom wall portion 32. The bottom wall portion 32 has a hexagonal hole 33 formed therethrough. A screw 34 is formed on the inner surface of the cylindrical portion 31. Further, a screw 35 is formed on the outer surface of the portion surrounding the hexagonal hole 33.

As shown in FIG. 10, when the replenishment socket 3 is rotationally fastened to the elbow 2, the connection port of the replenishment socket 3 is exposed on the outer surface of the wall 4, so that a faucet or the like can be attached. become.

[0006]

[Problems to be solved by the device]

 Conventionally, a hexagonal wrench having a hexagonal cross section has been used as a tool for rotationally tightening the replenishment socket 3.

FIG. 12 illustrates a state in which the hexagon wrench 5 is used to replenish and the socket 3 is rotationally fastened.

The hexagon wrench 5 has a uniform hexagonal cross-sectional shape in the length direction. Therefore, as shown in the drawing, when the hexagon wrench 5 is added to fit into the hexagonal hole of the socket 3 and the socket 3 is to be rotated to rotate the hexagon wrench 5, the hexagonal wrench 5 is added to the socket 3 along the hexagonal hole in the horizontal direction in the figure. It will slide to, making it difficult to work efficiently.

The hexagon wrench 5 shown in FIG. 12 is L-shaped as a whole having a long portion 5a and a short portion 5b. When the length of the cylindrical portion 31 of the replenishment socket 3 is long, the long portion 5 a is inserted into the through hole 33 of the replenishment socket 3 as shown in FIG. 12. In that case, the hexagon wrench 5 is rotated by gripping the short portion 5b, but a large rotational force cannot be applied because the short portion 5b is short. Therefore, it is necessary to rotate the short portion 5b using a pipe or a monkey wrench. Such work is inefficient.

When performing piping work, replenishment sockets of different sizes may be used. In that case, the size of the hexagon socket of each additional socket also differs. In the past, it was necessary to prepare many types of hexagonal wrenches 5 in preparation for such a case.

An object of the present invention is to provide a wrench that can efficiently perform a rotary fastening operation of a replenishing socket.

[0012] Another object of the present invention is to provide a wrench that can provide a large rotational operation force without requiring an auxiliary member.

Yet another object of the present invention is to provide a wrench that can be used in combination with extension sockets of different sizes.

[0014]

[Means and Actions for Solving the Problems]

 A wrench according to the present invention is composed of a cylindrical portion and a bottom wall portion and has a hexagonal hole in the bottom wall portion for rotationally tightening a socket, and a hexagonal tip portion and a circular flange portion. With. The hexagonal tip has a hexagonal cross-sectional shape and is fitted into the hexagonal hole of the socket. The circular flange portion has a circular cross-sectional shape and is located inside the cylindrical portion of the add-on socket and abuts the bottom wall portion.

According to the above-mentioned invention, since the wrench is rotated while the circular flange is added and brought into contact with the bottom wall of the socket, the wrench slides along the hexagonal hole of the socket. Instead, they can perform efficient work.

In a preferred embodiment, the tip surface of the hexagonal tip is spherical. By doing so, the hexagonal tip end portion can be added to easily fit into the hexagonal hole of the socket.

In a further preferred embodiment, the outer diameter dimension of the circular flange portion is approximately the same as the inner dimension dimension of the cylindrical portion of the add-on socket. In this way, wobble of the wrench can be prevented.

In another embodiment of the invention, the wrench comprises a horizontal axis and a vertical axis extending in a substantially orthogonal positional relationship. The vertical axis comprises a hexagonal tip and a circular flange. The hexagonal tip has a hexagonal cross-sectional shape and is fitted into the hexagonal hole of the socket. The circular flange portion has a circular cross-sectional shape, is located in the cylindrical portion of the add-on socket, and abuts the bottom wall portion.

Also in this embodiment, since the circular flange portion is added to contact the bottom wall portion of the socket, the rotary tightening work of the wrench can be efficiently performed. Further, since the horizontal shaft can be grasped and rotated, a large rotary operation force can be exerted.

In a preferred embodiment, both ends of the horizontal axis are provided with hexagonal tips and circular flanges. In this case, it is desirable that the hexagonal tip of the vertical axis and the hexagonal tips of both ends of the horizontal axis have hexagonal cross-sectional shapes of different sizes. In this way, it is possible to deal with differently-sized extension sockets with a single lenticular.

In yet another embodiment of the present invention, a wrench includes a horizontal axis and a vertical axis, and a hexagonal tip portion and a circular flange portion are provided at both ends of the horizontal axis and the vertical axis, respectively. According to this embodiment, since the horizontal axis and the vertical axis intersect in a cross shape, the force can be efficiently transmitted regardless of which hexagonal tip portion is used.

[0022]

【Example】

 1 to 5 illustrate one embodiment of this invention.

The wrench 10 includes a horizontal shaft 11 and a vertical shaft 12 that extend in a substantially orthogonal positional relationship. As shown in FIG. 4, the vertical shaft 12 is screwed and fixed to the horizontal shaft 11.

The vertical shaft 12 includes a hexagonal tip portion 14 having a hexagonal cross-sectional shape and a circular flange portion 13 having a circular cross-sectional shape. The tip surface of the hexagonal tip portion 14 is made to be a spherical surface 15.

As shown in FIG. 5, the hexagonal tip portion 14 is fitted into the hexagonal hole 33 of the socket 3 for the extension. On the other hand, the circular flange portion 13 is located inside the cylindrical portion 31 of the replenishing socket 3 and contacts the bottom wall portion 32 of the replenishing socket 3.

As shown in FIG. 1, the horizontal shaft 11 is provided at both ends thereof with hexagonal tips 17 and 20 having a hexagonal cross-sectional shape, and circular flange portions 16 and 19 having a circular cross-sectional shape. ing. The tip surfaces of the hexagonal tip portions 17 and 20 are spherical surfaces 18 and 21, respectively.

The hexagonal tip portion 14 of the vertical shaft 12 and the hexagonal tip portions 17 and 20 at both ends of the horizontal shaft 11 have hexagonal cross-sectional shapes of different sizes. Similarly, the three circular flange portions 13, 16 and 19 have circular cross-sectional shapes of different sizes.

With reference to FIG. 5, when the additional socket 3 is rotationally fastened, the hexagonal tip portion 14 of the vertical shaft 12 is inserted into the hexagonal hole 33 of the additional socket 3. At this time, since the spherical surface 15 acts as a guide surface, the hexagonal tip portion 14 can be added to be smoothly fitted into the hexagonal hole 33 of the socket 3.

In the state shown in FIG. 5, since the circular flange portion 13 is added to the bottom wall 32 of the socket 3, the vertical shaft 12 cannot further descend from the state shown in the drawing.

Therefore, by rotating the horizontal shaft 11, it is possible to efficiently perform the rotating and fastening work of the replenishment socket 3. Further, since the horizontal shaft 11 extends to the left and right of the vertical shaft 12, the rotating operation is easy and a large rotating operation force can be applied.

Further, in the embodiment shown in FIG. 1, since three types of hexagonal tips 14, 17, 20 and three types of circular flanges 13, 16, 19 are provided, three types of joints are added. It is possible to handle the rotation tightening work of the socket. When the hexagonal tip provided at the end of the horizontal shaft 11 is used, the vertical shaft 12 is grasped and rotated.

Preferably, as shown in FIG. 5, the outer diameter dimension of the circular flange portion 13 is set to be substantially the same as the inner diameter dimension of the cylindrical portion 31 of the extension socket 3. In this way, wrenches can be prevented from wobbling during the rotation fastening work.

FIG. 6 shows another embodiment of the present invention. The wrench 40 includes a horizontal shaft 41 and a vertical shaft 42 that extend in a crosswise orthogonal positional relationship. The horizontal shaft 41 and the vertical shaft 42 respectively have hexagonal tips 50, 53, 44, 47 having hexagonal cross-sectional shapes and circular flange portions 49, 52, 43, 46 having circular cross-sectional shapes at both ends thereof. With. Each of the hexagonal tips 50, 53, 44 and 47 is to be fitted into a hexagonal hole of a socket and has spherical surfaces 51, 54, 45 and 48 on the tip surfaces thereof. The circular flange portions 49, 52, 43 and 46 are all located in the cylindrical portion of the replenishing socket and abut on the bottom wall portion of the replenishing socket.

In the embodiment shown in FIG. 6, the hexagonal tips 44 and 47 formed at both ends of the vertical shaft 42 have the same hexagonal cross-sectional shape. Similarly, one circular flange portion 43 has a circular cross-sectional shape of the same size as the other circular flange portion 46.

The hexagonal tip portion 53 located at one end of the horizontal shaft 41 has a hexagonal cross-sectional shape different in size from the hexagonal tip portion 50 located at the other end, and both ends of the vertical shaft 42. The hexagonal tip portions 44 and 47 located at the position of the hexagonal cross-section have different sizes. Similar dimensional relationships are adopted for the circular flange portions 52, 49, 43, 46.

According to the embodiment shown in FIG. 6, it is possible to cope with the rotational fastening work of three types of additional sockets. Furthermore, no matter which hexagonal tip is used for rotary fastening work, the horizontal shaft 41 or the vertical shaft 42 extends in both directions with the axis of rotary fastening as the center, so a large rotational operation force is applied. can do.

FIG. 7 illustrates still another embodiment of the present invention. In this embodiment, the lenticular 60 includes a T-shaped pipe joint 61, a first horizontal shaft 62 connected to the pipe joint 61, a second horizontal shaft 63, and a vertical shaft 64. The first horizontal shaft 62 includes a hexagonal tip portion 66 having a hexagonal cross-sectional shape and a circular flange portion 65 having a circular cross-sectional shape. The tip surface of the hexagonal tip portion 66 is a spherical surface 67.

Similarly, the second horizontal shaft 63 includes a hexagonal tip portion 69 having a hexagonal cross-sectional shape and a circular flange portion 68 having a circular cross-sectional shape. The end surface of the hexagonal tip portion 69 is a spherical surface 70.

The vertical shaft 64 also includes a hexagonal tip portion 72 having a hexagonal cross-sectional shape and a circular flange portion 71 having a circular cross-sectional shape. The tip surface of the hexagonal tip portion 72 is a spherical surface 73.

FIG. 8 illustrates still another embodiment of the present invention. The wrench 80 includes a single shaft 81 that extends linearly. The shaft 81 includes a hexagonal tip end portion 83 having a hexagonal cross-sectional shape and a circular flange portion 82 having a circular cross-sectional shape. The tip surface of the hexagonal tip end portion 83 is a spherical surface 84. Further, as shown in the drawing, a through hole 85 is formed at the upper end of the shaft 81.

In the embodiment shown in FIG. 8, the rotary fastening work will be performed with the round bar inserted in the through hole 85.

FIG. 9 further illustrates another embodiment of the present invention. The wrench 90 includes an L-shaped shaft 91. At both ends of the L-shaped shaft 91, hexagonal tip portions 93 and 96 having a hexagonal cross-sectional shape and circular flange portions 92 and 95 having a circular cross-sectional shape are provided, respectively. The tip surfaces of the hexagonal tip portions 93 and 96 are spherical surfaces 94 and 97. One hexagonal tip portion 93 and the circular flange portion 92 have a different cross-sectional shape from the other hexagonal tip portion 96 and the circular flange portion 95.

Although the invention has been described with reference to some embodiments, modifications and variations can be made within the equivalent scope of the invention in addition to the illustrated embodiments.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a right side view of the embodiment of the present invention.

FIG. 4 is a view showing a connecting portion between a horizontal axis and a vertical axis according to an embodiment of the present invention.

FIG. 5 is a view showing a state in which a rotary tightening operation of the replenishment socket is being performed.

FIG. 6 is a front view of another embodiment of the present invention.

FIG. 7 is a front view of still another embodiment of the present invention.

FIG. 8 is a front view of still another embodiment of the present invention.

FIG. 9 is a front view of still another embodiment of the present invention.

FIG. 10 is a diagram showing a state of being piped in a wall.

FIG. 11 is a perspective view showing a replenishment socket.

FIG. 12 is a diagram showing a state in which a conventional hexagon wrench is used to perform a rotary tightening operation of a replenished socket.

[Explanation of symbols]

 10 Wrench 11 Horizontal Axis 12 Vertical Axis 13 Circular Flange Part 14 Hexagonal Tip Part 15 Spherical 16 Circular Flange Part 17 Hexagonal Tip Part 18 Spherical 19 Circular Flange Part 20 Hexagonal Tip Part 21 Spherical Surface

Claims (7)

[Scope of utility model registration request] 1. A wrench for rotationally tightening a replenishing socket comprising a cylindrical portion and a bottom wall portion and having a hexagonal hole in the bottom wall portion, the wrench having a hexagonal cross-sectional shape, and the hexagonal shape of the replenishing socket. A wrench comprising: a hexagonal tip portion that fits into the hole; and a circular flange portion that has a circular cross-sectional shape and that is located within the cylindrical portion of the replenishment socket and that abuts the bottom wall portion. 2. The wrench according to claim 1, wherein a tip surface of the hexagonal tip portion is a spherical surface. 3. The wrench according to claim 1, wherein the outer diameter dimension of the circular flange portion is substantially the same as the inner dimension dimension of the cylindrical portion of the add-on socket. 4. A wrench for rotationally tightening a replenishing socket comprising a cylindrical portion and a bottom wall portion and having a hexagonal hole in the bottom wall portion, wherein a horizontal axis and a vertical axis extending in a substantially orthogonal positional relationship. The vertical axis has a hexagonal cross-section, a hexagonal tip that fits into the hexagonal hole of the extension socket, and a circular cross-section that is located within the cylindrical section of the extension socket. A circular flange that abuts the bottom wall, and a wrench. 5. The horizontal shaft has a hexagonal cross-sectional shape at both ends thereof, and a hexagonal tip portion that fits into a hexagonal hole of the replenishing socket, and a circular cross-sectional shape of the replenishing socket. The circular wrench part located in a cylindrical part and contact | abutting the said bottom wall part, The wrench of Claim 4 provided. 6. The wrench according to claim 5, wherein the hexagonal tip portion of the vertical shaft and the hexagonal tip portions of both ends of the horizontal shaft have hexagonal cross-sectional shapes of different sizes. 7. A wrench for rotationally tightening a replenishing socket comprising a cylindrical portion and a bottom wall portion and having a hexagonal hole in the bottom wall portion, wherein a horizontal axis and a vertical axis extending in a substantially orthogonal positional relationship are provided. The horizontal axis and the vertical axis each have a hexagonal cross-sectional shape at both ends thereof, and a hexagonal tip portion fitted into the hexagonal hole of the extension socket, and a circular cross-sectional shape, the extension socket A circular flange portion located inside the cylindrical portion of and abutting the bottom wall portion.