JPH0921412A - Nut holding structure for bolt member supporting body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily screw a nut at the time of fitting a bolt member to a supporting body by previously holding the nut in the bolt member supporting body. SOLUTION: A bolt hole 2 is provided so as to pass through from one surface to the other surface of an arm 1 as a bolt member supporting body, and a holder 6 having the nearly U-shaped cross section is provided so as to surround the bolt hole 2 of the other surface of this arm 1, and a nut insertion locking hole 7 is provided from one side plate to the bottom plate of the holder 6, and one end of the nut insertion locking hole 7 positioned in the one side plate is formed into a wide part 7a, in which a flange part 8a of the nut 8 to be inserted can be passed. Width of the nut insertion locking hole 7 except for the wide part 7a is formed at a width a little wider than the outer diameter of the nut 8, and the flange part 8a of one end of the nut 8 inserted into the holder 6 is locked with the peripheral edge of the nut insertion locking hole 7 so that the lower part of the nut 8 is projected outside, and in this condition, a space is formed between one end of the bolt hole 2 and one end of the nut 8, and the bolt hole 2 and the screw hole of the nut 8 are positioned on the nearly same axis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support member for a bolt member, in which a nut is screwed into an end portion of a bolt member which is inserted from one surface of an appropriate support member such as a armband and protruded to the other surface and is tightened. In the above, it relates to a structure for holding the nut in advance.

[0002]

2. Description of the Related Art Conventionally, when attaching a supporting metal fitting or the like supporting an insulator to a tip of a wrist metal, the supporting metal fitting is placed on the upper surface of the arm metal, and the bolts of the supporting metal fitting are attached to the bolt holes formed on the upper and lower surfaces of the arm metal. At the same time, the bolts are inserted into these bolt holes, nuts are screwed onto the lower ends of the bolts protruding from the lower surface, and the nuts are tightened with an appropriate tool to fix the support fittings to the arms.

[0003]

However, when the nuts are screwed onto these bolts, the bolts are pressed down and the central axis of the screw hole of the nut is aligned with the central axis of the bolt. It must be turned and screwed on. Moreover, many of these operations were performed on the pillars, which was troublesome. Further, such complicated work is not suitable for work by a robot such as a manipulator.

In view of this, the present invention provides a nut holding structure in which a nut is held in advance on a support for a bolt member such as a armband and the nut can be easily screwed when the bolt member is attached to the support. It is intended to solve the above problems.

[0005]

According to a first aspect of the invention, a nut is screwed to an end of a bolt member which is inserted from one surface of an appropriate support member and protruded to the other surface, and is tightened. In the support body of the member, a bolt hole penetrating from one surface to the other surface of the support body of the bolt member is provided, and a holding body having a substantially U-shaped cross section is provided on one side surface of the support body so as to surround the bolt hole. There is. Further, a nut insertion locking hole is provided from one side plate of the holding body to the bottom plate, and one end portion located at the one side plate of the nut insertion locking hole is a wide portion having a width into which the collar portion of the nut to be inserted can be inserted, The width of the nut insertion locking hole other than the wide portion is slightly larger than the outer diameter of the nut to be inserted and smaller than the outer diameter of the collar portion.

Further, a nut is inserted into the holder through the nut insertion locking hole, and the flange portion at one end of the nut is locked to the peripheral edge of the nut insertion locking hole of the bottom plate so that the lower portion of the nut is engaged with the nut insertion locking member. It is made to project outside the holder from the stop hole. Further, in this state, there is a space between one end of the bolt hole and one end of the nut, and the bolt hole and the screw hole of the nut are positioned substantially coaxially.

The invention according to claim 2 has substantially the same structure as the nut holding structure according to claim 1, but the shape of the bolt hole and the structure of the nut insertion locking hole are different. That is, the bolt hole has a large tapered opening at the side where the bolt member is inserted. Also, one end of the nut insertion locking hole located on the side plate of the holder is a wide part having a width into which the flange of the hexagonal nut to be inserted can be inserted, and the width of the nut insertion locking hole other than the wide part is inserted. The outer diameter of the hexagon nut is slightly larger than the narrow outer diameter of the hexagon nut, and is smaller than the wide outer diameter of the hexagon nut. It has a width slightly larger than the diameter and smaller than the outer diameter of the flange of the nut, and a hexagon nut is inserted into this holder through the nut insertion locking hole,
The flange portion at one end of the hexagonal nut is locked to the peripheral edge of the nut insertion locking hole of the bottom plate so that the lower portion of the hexagonal nut is projected from the nut insertion locking hole to the outside of the holder.

[0008]

In the nut to be inserted into the holder according to the invention of claim 1, when the collar portion provided at one end of the nut is aligned with the wide portion of the nut insertion locking hole, the outer diameter of the other portion of the nut becomes Since the width is smaller than the width of the nut insertion locking hole, the nut can be inserted from the side plate direction of the holding body. Then, when the collar portion enters the holder, the nut is pressed as it is into the nut insertion locking hole of the bottom plate of the holder. As a result, a part of the collar portion of the nut is locked to the peripheral edge of the nut insertion locking hole of the bottom plate, and the lower portion of the nut projects from the nut insertion locking hole to the outside of the holder. In the state of being held in this way, the flange portion of the nut has a larger diameter than the nut insertion locking hole, so that the nut does not come off unnecessarily from the holding body. To remove this, the flange portion of the nut can be separated from the nut insertion locking hole, and the nut can be taken out from the nut insertion locking hole by aligning the flange portion with the wide portion of the nut insertion locking hole.

With the nut held by this holder,
An appropriate bolt member is inserted from the opening of the bolt hole on one surface of the support, and the bolt member is passed through the other end of the bolt hole. Then, the bolt member is pressed by one surface side of the support, the nut is moved along the nut insertion locking hole, and the screw hole of the nut is screwed to the bolt of the bolt member. Then the nut can be turned further and tightened. At this time, since the nut always projects to the outside of the holding body, the nut can be gripped and rotated from the outside of the holding body.

According to the second aspect of the present invention, in the hexagon nut to be inserted into the holding body, the collar portion provided at one end of the hexagon nut is aligned with the wide portion of the nut insertion locking hole, and the width of the nut is narrow. By adjusting the outer diameter of the hexagonal nut to the nut insertion locking hole, the hexagon nut can be inserted from the side plate direction of the holding body. After the collar portion has entered the holder, the hexagon nut is turned so that the wide outer diameter surface of the hexagon nut faces the nut insertion locking hole of the side plate of the holder. Therefore, the hexagon nut is pressed as it is into the nut insertion locking hole of the bottom plate of the holding body. As a result, a part of the flange portion of the hexagon nut is locked to the peripheral edge of the nut insertion locking hole of the bottom plate, and the lower portion of the hexagon nut projects from the nut insertion locking hole to the outside of the holder. When held in this way, the flange of the hexagon nut has a larger diameter than the nut insertion locking hole,
Moreover, since the width of the nut insertion locking hole is smaller than the wide outer diameter of the nut, the hexagonal nut cannot be unnecessarily removed from the holder. The wide outer diameter of the hexagonal nut is the width between the opposing ridgelines of the nut, the narrow outer diameter is the width between the opposing surfaces, and these widths are different from each other.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Bolt holes 2 are formed so as to penetrate the upper and lower surfaces of the rectangular tube-shaped arm member 1. The bolt hole 2 has openings 3 and 4 on the upper and lower surfaces of the arm 1 respectively, and between the openings 3 and 4, the guide body 5 is formed into a tapered shape with the upper end gradually increasing in diameter.
Is configured to pass. A holder 6 having a U-shaped cross section is provided on the lower surface of the arm 1 around the opening 4 on the side opposite to the tapered portion of the bolt hole 2.

Further, a nut insertion locking hole 7 is provided from one side plate of the holding body 6 to the bottom plate, and one end portion of the nut insertion locking hole 7 located on the side plate of the holding body 6 is a hexagon nut to be inserted. 8 has a wide portion 7a having a width larger than the outer diameter of the collar portion 8a provided at one end, and the other end located on the bottom plate of the holding body 6 is slightly smaller than the wide outer diameter of the hexagon nut 8. The hexagonal nut 8 has a substantially circular locking portion 7b having an outer diameter smaller than that of the collar portion 8a of the hexagonal nut 8. The width of the other portion is slightly larger than the narrow outer diameter of the hexagonal nut 8 and is smaller than that of the hexagonal nut 8. The width is smaller than the wide outer diameter.

A hexagon nut 8 is inserted in the holder 6. To insert the hexagon nut 8 into the holding body 6, the collar portion 8a provided at one end of the hexagon nut 8 is aligned with the wide portion 7a of the nut insertion locking hole 7, and the hexagon nut 8
When the narrow outer diameter of the hexagon nut 8 is matched with the nut insertion locking hole 7, the hexagon nut 8 can be easily inserted from the side plate direction of the holding body 6. Then, after the collar portion 8a enters the holding body 6, the hexagon nut 8 is rotated so that the wide outer diameter surface of the hexagon nut 8 faces the nut insertion locking hole 7 of the side plate of the holding body 6. Then, the hexagon nut 8 is pressed as it is to the locking portion 7b of the nut insertion locking hole 7 of the bottom plate of the holding body 6. As a result, a part of the flange portion 8a of the hexagon nut 8 is locked to the peripheral edge of the locking portion 7b, and the lower portion of the hexagon nut 8 projects from the nut insertion locking hole 7 to the outside of the holding body 6.

When held in this manner, the hexagon nut 8
The flange portion 7a has a larger diameter than the nut insertion locking hole 7, and the width of the nut insertion locking hole 7 is smaller than the wide outer diameter of the nut 8, so that the hexagon nut 8 is unnecessarily removed from the holding body 6. Absent. Further, in this state, the opening 4 at one end of the bolt hole 2
And the one end surface of the hexagonal nut 8 has a space, and the central axis of the bolt hole 2 and the central axis of the screw hole of the hexagonal nut 8 are located substantially on the same line.

In the case of this embodiment, in order to fix the bolt member 9 to the arm member 1, the tip of the bolt member 9 is inserted from the opening 3 of the bolt hole 2 on the upper surface of the arm member 1, as shown in FIG. . At that time, since the opening 3 of the bolt hole 2 is opened in a tapered shape by the guide body 5, the tip of the bolt member 9 can be easily inserted. Then, the bolt member 9 is inserted into the bolt hole 2 as it is, and the tip of the bolt member 9 is projected from the opening portion 4 of the lower surface of the arm member 1, and the hexagon nut 8 held by the holding body 6 is there.
Is located in advance, and the central axis of the bolt hole 2 and the hexagon nut 8 are previously arranged.
Since the central axes of the screw holes of
When is lifted up in the holding body 6 and turned, the hexagon nut 8 is easily screwed onto the tip of the bolt member 9.

Further, while the head body 9a of the bolt member 9 is locked by an appropriate means, the hexagon nut 8 is rotated and tightened to support the bolt member 9 on the arm member 1 as shown in FIG. Fix it. Further, as shown in FIG. 7, the arm member 1 in which the nut 8 is held in advance by the holding body 6 corresponding to the plurality of bolt holes 2 is provided with a band 10 at one end and is used as a utility pole or the like for supporting the band 10. The armrest 1 is wound and fixed.

In the above embodiment, one end of the bolt hole 2 is opened in a tapered shape to open it, but in the present invention, one end of the bolt hole is not necessarily opened and may be formed in a pipe shape. Further, in the above-mentioned embodiment, the holding body is provided on the lower surface of the armband, and the nut is hung from the holding body.However, the holding body is oriented in an appropriate direction such as the side surface of the armband so that the nut projects sideways. May be provided. Further, although the hexagonal nut is used as the nut in the first embodiment, the nut is not limited to the hexagonal nut, and an appropriate nut may be used. In that case, the wide portion 7a of the nut insertion locking hole 7 only needs to have a shape that allows the flange portion provided at one end of the nut to pass through, and the width of the other portions is slightly larger than the outer diameter of the nut. If the width is smaller than the outer diameter of the portion, substantially the same effect as that of the above-described embodiment is obtained. Further, in the above embodiment, the bolt member is used for fixing the bolt member to the armband, but the present invention is not limited to this, and the bolt member has a bolt-shaped portion such as a pin for supporting the insulator having a bolt-shaped tip. It includes all the members having the above, and includes all the structures for holding the nut in advance on an appropriate supporting body that supports the bolt member.

[0018]

According to the first aspect of the present invention, since the holding body is provided in correspondence with the bolt hole of the support body of the bolt member to hold the nut in advance, it is extremely easy to fix the bolt member to the support body. Is. That is, since the nut is held in correspondence with the bolt hole and the central axis of the bolt hole and the central axis of the screw hole of the nut are aligned, when the bolt member is inserted into the bolt hole of the support, the nut is If it is moved along the insertion locking hole, it can be easily screwed onto the tip of the bolt member. Further, since a gap is provided between one end of the bolt hole of the support and one end surface of the nut, proper play can be performed, and the nut screwing operation is further facilitated. Further, since the nut held by the holding body always projects outward from the holding body, the nut can be gripped from the outside of the holding body and turned. As described above, the nut can be securely screwed to the bolt member by an extremely simple operation, which is suitable for work by a robot or the like.

Further, since the flange portion of the nut is locked to the peripheral edge of the nut insertion locking hole of the holder and the tip of the nut projects from the hole, the nut does not come off unnecessarily from the holder. To remove this, move the nut to separate the flange from the nut insertion locking hole, align the flange with the wide part of the nut insertion locking hole, and remove the nut from the nut insertion locking hole. It is possible to replace the nut with a screw hole having a different diameter according to the outer diameter of the bolt member to be supported.

In addition, the invention of claim 2 has the same effect as the invention of claim 1, and since the opening of the bolt hole into which the bolt member is inserted is greatly tapered, the bolt is opened. Easy to insert members into bolt holes. In addition, the width of the nut insertion locking hole of the holder is larger than the narrow outer diameter of the two hexagon nuts and smaller than the wide outer diameter.Therefore, when inserting and removing the nut, the narrow outer diameter of the hexagon nut is used. In order to hold the nut, it is more difficult to come off.

[Brief description of drawings]

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

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

FIG. 3 is a schematic plan view of the embodiment of the present invention.

FIG. 4 is a bottom plan view of the embodiment of the present invention.

FIG. 5 is a side view of the holding body according to the embodiment of the present invention.

FIG. 6 is a bottom view of the holding body according to the embodiment of the present invention.

FIG. 7 is a front view of a wristband using the embodiment of the present invention.

FIG. 8 is a sectional side view showing a state in which a bolt member is inserted into the bolt hole of the embodiment of the present invention.

FIG. 9 is a sectional side view showing a state in which the nut of the embodiment of the present invention is screwed and fastened to the bolt member.

[Explanation of symbols]

 1 Bracket 2 Bolt hole 3 Opening 4 Opening 5 Guide body 6 Holding body 7 Nut insertion locking hole 7a Wide part 8 Hexagon nut 8a Collar part 9 Bolt member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000005186 Fujikura Co., Ltd. 1-5-1, Kiba, Koto-ku, Tokyo (72) Inventor Susumu Uchida 1-3-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyu Electric Power Co., Inc. (72) Inventor Koichi Murata 1-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo Within Tokyo Electric Power Co., Inc. (72) Inventor Kaoru Araki 1-3-3 Uchisaiwai-cho, Chiyoda-ku, Tokyo Within Tokyo Electric Power Company ( 72) Inventor Hiroyuki Iwase, Iwabuchi Co., Ltd. 1-22-12 Toranomon, Minato-ku, Tokyo (72) Inventor Takeo Kudo 1-1-14 Shinjuku, Shinjuku-ku, Tokyo Nasu Electric Works (72) Invention Tsutomu Gunji 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Within Furukawa Electric Co., Ltd. (72) Inventor Tetsuo Kawaguchi 1-1-5, Kiba, Koto-ku, Tokyo Stock company Fujikura

Claims (2)

[Claims] 1. A support for a bolt member, wherein a nut is screwed onto an end of a bolt member that is inserted from one surface of an appropriate support and protrudes to the other surface, and the nut is tightened. A bolt hole penetrating from one surface to the other surface is provided, and a holding body having a substantially U-shaped cross section is provided on one side surface of the support body so as to surround the bolt hole. A stop hole is provided, and one end located on one side plate of the nut insertion locking hole is a wide portion having a width into which the flange portion of the nut to be inserted can be inserted, and the width of the nut insertion locking hole other than the wide portion is The width is slightly wider than the outer diameter of the nut to be inserted and smaller than the outer diameter of the collar part.The nut is inserted into the holder through the nut insertion locking hole, and the collar part at one end of the nut is attached to the nut insertion part of the bottom plate. Lock the bottom of the nut by locking it around the stop hole. The nut insertion locking hole is projected to the outside of the holding body, and in this state, there is a gap between one end of the bolt hole and one end of the nut, and the bolt hole and the screw hole of the nut are positioned substantially coaxially. Is characterized by
Nut holding structure. 2. A support for a bolt member in which a nut is screwed into an end of a bolt member that is inserted from one surface of a suitable support and protruded to the other surface and is tightened. A bolt hole that penetrates from one side to the other side is provided, and one end of this bolt hole is tapered and opened, and a cross section is formed on the support surface of the bolt member on the side opposite to this tapered portion, surrounding the bolt hole. A substantially U-shaped holding body is provided, and a nut insertion locking hole is provided from one side plate of this holding body to the bottom plate.One end of the nut insertion locking hole located on one side plate has a collar portion of a hexagon nut to be inserted. A wide part with a width that can be inserted, and the width of the nut insertion locking hole other than the wide part is slightly larger than the narrow outer diameter of the hex nut to be inserted and smaller than the wide outer diameter of the hex nut. And the nut located on the bottom plate The other end of the insertion locking hole is slightly larger than the wide outer diameter of the hexagon nut and has a width smaller than the outer diameter of the collar of the nut. The hexagonal nut is inserted, and the flange portion at one end of the hexagonal nut is locked to the peripheral edge of the nut insertion locking hole of the bottom plate so that the lower portion of the hexagonal nut projects from the nut insertion locking hole to the outside of the holding body. A nut holding structure, characterized in that there is a space between one end of the hole and one end of the hexagonal nut, and the bolt hole and the screw hole of the hexagonal nut are located substantially coaxially.