JP6106504B2 - Bolt pressing tool - Google Patents

Description

  The present invention relates to a bolt pressing tool.

  Patent document 1 discloses a housing type pipe joint. This housing type pipe joint joins the pipe ends of two pipes. Circumferential grooves are formed on the outer circumferences of the pipe ends of these pipes. This housing type pipe joint includes a pair of housings. These housings cover the outer periphery of both pipe ends via packing. These housings are arcuate. A concave groove is formed in these housings. The concave groove is formed by an arc-shaped central abdominal wall and a pair of side walls projecting radially inward from both ends of the central abdominal wall. This concave groove accommodates the pipe ends and packings of the two pipes. In these housings, plate-like bodies are formed at both circumferential ends of the central abdominal wall. These housings have an engagement protruding wall that extends radially inward from the inner peripheral end of one side wall and fits in a circumferential groove of one pipe, and an inner radial direction from the inner peripheral end of the other side wall. And an engaging projection wall that fits into the circumferential groove of the other pipe. The plate-like bodies facing each other of the pair of housings are fastened with bolts and nuts. Each plate-like body is provided with a hole for the penetration of the bolt.

JP 2008-275005 A

  The bolts described below may be used for other housing-type pipe joints disclosed in Patent Document 1. The bolt includes a shaft portion that meshes with the nut, and a head portion provided at one end of the shaft portion. The outer shape of the head is hemispherical. The cross-sectional shape of the base of the head is rectangular. In the case of a housing-type pipe joint in which this bolt is used, the hole in the plate-like body is a long hole or a hole having a rectangular cross section. The bolt described above is inserted into this hole. The base of the bolt head fits into the hole in the plate-like body. When this bolt is used, it can be tightened by turning only the nut.

  The housing-type pipe joint can join the pipe ends of the two pipes when the plate-like bodies are fastened with bolts and nuts. When bolts with a rectangular cross section at the base of the head are used, the following problems may occur if the plate is tightened without the base of the bolt head being fitted into the hole in the plate. is there. The problem is that the fluid may leak from between the two pipes. The cause of the fluid leakage is that the sealing performance of the packing is lowered. The cause of the deterioration of the sealing performance of the packing is that the base of the head of the bolt, which was not initially fitted in the hole in the plate-like body, fits into the hole in the plate-like body due to some vibration or impact.

  There is a possibility that fluid may leak from between the two pipes not only when the cross-sectional shape of the base of the head is rectangular. Even when the cross-sectional shape of the base of the head is circular, the plate-like bodies are tightened with something sandwiched between the head of the bolt and the plate-like body, and the head and the plate of the bolt A similar problem may occur when an object sandwiched between the objects falls off for some reason.

  The present invention has been made to solve this problem. An object of the present invention is to reduce the risk of tightening with bolts being insufficient.

  The bolt pressing tool of the present invention will be described with reference to the drawings. The reason why the symbols in the figure are used in this column is to help understand the content of the invention. The use of the symbols in the figure in this column is not intended to limit the scope of the invention to the scope shown.

In order to achieve the above-described object, according to one aspect of the present invention, the bolt pressing devices 10 and 12 are bolts 140 that pass through the holes 124 of the plate-like body 122 and have a head 152. It is for pressing to 122. The bolt pressing tools 10 and 12 include base portions 20 and 60, head contact portions 22 and 62, and facing portions 24 and 64. The head contact portions 22 and 62 protrude from the base portions 20 and 60. The head contact portions 22 and 62 contact the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. The facing portions 24 and 64 protrude from the base portions 20 and 60. The facing parts 24 and 64 face the head contact parts 22 and 62. When the bolts 140 are pressed against the plate-like body 122, the facing portions 24 and 64 sandwich the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portions 22 and 62 in an elastically deformed state. The facing parts 24 and 64 have a sandwiching direction elastic force generation part 50 and a pressing direction elastic force generation part 52. The sandwiching direction elastic force generator 50 is fixed to the base 20. The sandwiching direction elastic force generator 50 protrudes from the base 20. The sandwiching direction elastic force generator 50 faces the head contact parts 22 and 62. When the bolt 140 is inserted into the hole 124 of the plate-like body 122 and the head contact portions 22, 62 straddle the head 152 of the bolt 140, the pressing direction elastic force generating portion 52 has a hole in the plate-like body 122 from the side of the bolt 140. 124 enters the edge of the hole 124 of the plate-like body 122 and is elastically deformed. The pressing direction elastic force generator 52 is connected to the sandwiching direction elastic force generator 50.

  When the bolts 140 are pressed against the plate-like body 122, the facing portions 24 and 64 sandwich the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portions 22 and 62 in an elastically deformed state. Thereby, for example, when the bolt 140 is to be pressed against the plate-like body 122 with the bolt pressing tools 10 and 12 without the base 160 of the head 152 of the bolt 140 being fitted into the hole 124 of the plate-like body 122, As a result, the elastic deformation of the facing portions 24 and 64 increases. Since the elastic deformation increases, it is easy to detect that the bolt 140 is pressed against the plate-like body 122 without the base 160 of the head 152 of the bolt 140 being fitted into the hole 124 of the plate-like body 122. Even when an attempt is made to press the bolt 140 against the plate-like body 122 while something is sandwiched between the head portion 152 of the bolt 140 and the plate-like body 122, the elasticity of the facing portions 24 and 64 is caused by that. Deformation increases. Since the elastic deformation increases, it is easy to detect that the bolt 140 is pressed against the plate-like body 122 while something is sandwiched between the head 152 of the bolt 140 and the plate-like body 122. Since these are easily detected, the risk that the bolt 140 is tightened without detecting them is reduced. As a result, it is possible to reduce the risk that tightening with the bolts 140 will be insufficient.

  Moreover, it is desirable that the head contact portion 22 described above has a hook portion 30 and a contact protrusion portion 32. The hook 30 is hooked on the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. The contact protrusion 32 is fixed to the base 20. The contact protrusion 32 protrudes from the base 20. The contact protrusion 32 connects the hook 30 and the base 20. The contact protrusion 32 contacts the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. In this case, it is desirable that the facing portion 24 has a sandwiching direction elastic force generation unit 50 and a pressing direction elastic force generation unit 52. The sandwiching direction elastic force generator 50 is fixed to the base 20. The sandwiching direction elastic force generator 50 protrudes from the base 20. The sandwiching direction elastic force generating part 50 faces the head contact part 22. When the bolt 140 is pressed against the plate-like body 122, the pinching-direction elastic force generating unit 50 is elastically deformed so as to sandwich the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portion 22 by elastic deformation. Is generated. The pressing direction elastic force generator 52 is connected to the sandwiching direction elastic force generator 50. The pressing direction elastic force generator 52 generates an elastic force by elastic deformation when the bolt 140 is pressed against the plate-like body 122. The direction of the elastic force is a direction in which the hook 30 is pressed against the head 152 of the bolt 140.

  When the hook 30 is hooked on the head 152 of the bolt 140 and the hook 30 is pressed against the head 152 of the bolt 140, the bolt 140 is pressed against the plate-like body 122. Further, the facing portions 24 and 64 sandwich the head portion 152 of the bolt 140 and the plate-like body 122 together with the head contact portions 22 and 62. Thereby, since the bolt 140 is pressed, rattling of the bolt 140 is suppressed.

  Alternatively, it is desirable that at least a part of the hook portion 30 described above is linear.

  A portion of the hook portion 30 having a linear shape is likely to have a smaller contact area with the bolt 140 than a planar portion. In the portion where the contact area is reduced, rattling due to the unevenness of the surface of the bolt 140 is suppressed.

Further, it is desirable that the facing portions 24 and 64 described above have a plurality of sandwiching direction elastic force generation units 50 and a plurality of pressing direction elastic force generation units 52 . The plurality of sandwiching direction elastic force generators 50 face the head contact parts 22 and 62, respectively. The plurality of sandwiching direction elastic force generators 50 are arranged to face each other. The plurality of pressing direction elastic force generation units 52 are connected to the plurality of sandwiching direction elastic force generation units 50, respectively. The plurality of pressing direction elastic force generating portions 52 face the head contact portions 22 and 62, respectively. The plurality of pressing direction elastic force generating portions 52 are arranged to face each other.

When the plurality of sandwiching direction elastic force generating parts 50 are arranged to face each other and the plurality of pressing direction elastic force generating parts 52 are arranged to face each other, the parallel part is pressed when the bolt 140 is pressed against the plate-like body 122. 40 can pinch the bolt 140. When the parallel part 40 sandwiches the bolt 140, rattling of the facing parts 24 and 64 is suppressed.

  Further, it is desirable that at least a part of the head contact portions 22 and 62 described above straddle the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122.

  According to the present invention, it is possible to reduce a risk that tightening with a bolt is insufficient.

It is a front view of a well-known housing type pipe joint. It is a side view of a well-known housing type pipe joint. It is a perspective view of the bolt pressing tool concerning a 1st embodiment of the present invention. It is a figure of the bolt pressing tool concerning a 2nd embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Description of housing type pipe joint]
FIG. 1 is a front view of a known housing-type pipe joint 100. FIG. 2 is a side view of the housing type pipe joint 100. Prior to the description of the bolt pressing tool 10 according to the present embodiment, the configuration of a known housing-type pipe joint 100 will be described with reference to FIGS. 1 and 2. In FIG. 1, the left half of the housing-type pipe joint 100 is a cross-sectional view. The housing-type pipe joint 100 includes a pair of housings 110 and a packing 112. The housing 110 has an arc shape. A concave groove 120 is formed in the housing 110. The packing 112 is accommodated in the concave groove 120. Plate bodies 122 are formed at both ends of the housing 110. The plate-like bodies 122 facing each other of the pair of housings 110 are fastened by bolts 140 and nuts 142. A hole 124 is provided in each plate-like body 122 for the penetration of the bolt 140. In the case of the housing type pipe joint 100, the hole 124 is a long hole. The bolt 140 that fastens the plate-like body 122 includes a shaft portion 150 that meshes with the nut 142, and a head portion 152 that continues to the shaft portion 150. In the present embodiment, the head 152 is one end of the bolt 140. The tip of the shaft 150 is the other end of the bolt 140. The cross-sectional shape of the base 160 of the head 152 is rectangular. The base 160 of the head 152 of the bolt 140 fits into the hole 124 of the plate-like body 122.

<Description of First Embodiment>
[Description of the function of the bolt pressing tool]
Based on FIG. 1 and FIG. 2, the function of the bolt pressing tool 10 concerning this embodiment is demonstrated. The bolt pressing tool 10 according to the present embodiment is fitted into one end of the plate-like body 122. Thereby, the bolt pressing tool 10 according to the present embodiment presses the bolt 140 penetrating the plate-like body 122 and having the head 152 against the plate-like body 122. In addition, it is natural that the bolt pressing tool 10 according to the present embodiment is not limited to the plate-like body 122 of the housing-type pipe joint 100 described above.

[Description of structure]
FIG. 3 is a perspective view of the bolt pressing tool 10 according to the present embodiment. Based on FIG. 3, the structure of the bolt pressing tool 10 concerning this embodiment is demonstrated. The bolt pressing tool 10 according to the present embodiment is formed by bending one metal wire. The bolt pressing tool 10 according to the present embodiment includes a base portion 20, a head contact portion 22, and a facing portion 24.

  A head contact portion 22 and a facing portion 24 are connected to the base portion 20. In the case of this embodiment, the base part 20 consists of two linear parts parallel to each other. The “straight line portion” means a straight linear portion. The straightness of the straight line portion is not particularly limited. It is enough if it can be seen straight by the human eye. The head contact portion 22 protrudes from the base portion 20. The head contact portion 22 contacts the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. The facing portion 24 protrudes from the base portion 20. The facing portion 24 faces the head contact portion 22. The opposing portion 24 sandwiches the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portion 22 when the bolt 140 is pressed against the plate-like body 122 in an elastically deformed state.

  In the case of the present embodiment, the head contact portion 22 includes a hook portion 30 and a pair of contact protrusions 32 and 32. The hook 30 is hooked on the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. In the case of this embodiment, the shape of the part except the both ends of the hook part 30 is linear. The contact protrusion 32 is fixed to the base 20. The contact protrusions 32, 32 protrude from the base 20. The contact protrusions 32, 32 connect both ends of the hook portion 30 and the base portion 20. In the case of this embodiment, the shape of the contact protrusions 32 and 32 is an arc shape. The radius of curvature of the contact protrusions 32, 32 is not particularly limited. It suffices if it is visible to the human eye to be arcuate.

  In the case of this embodiment, the facing portion 24 has a pair of parallel portions 40 and 40. The parallel portions 40 and 40 face the head contact portion 22, respectively. The parallel parts 40 are arranged so as to face each other.

  In the case of the present embodiment, the parallel portion 40 includes a sandwiching direction elastic force generation unit 50 and a pressing direction elastic force generation unit 52. The sandwiching direction elastic force generator 50 is fixed to the base 20. The sandwiching direction elastic force generator 50 protrudes from the base 20. The sandwiching direction elastic force generating part 50 faces the head contact part 22. When the bolt 140 is pressed against the plate-like body 122, the pinching-direction elastic force generating unit 50 is elastically deformed so as to sandwich the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portion 22 by elastic deformation. Is generated. The pressing direction elastic force generator 52 is connected to the sandwiching direction elastic force generator 50. When the bolt 140 is pressed against the plate-like body 122, the pressing direction elastic force generator 52 generates an elastic force in a direction to press the hook 30 against the head 152 of the bolt 140 by elastic deformation.

[Description of usage]
Below, the usage method of the bolt pressing tool 10 concerning this embodiment is demonstrated. The worker previously penetrates the bolts 140 through the plate-like bodies 122 facing each other of the pair of housings 110 shown in FIGS. 1 and 2. With the bolt 140 penetrated, the operator fits the bolt pressing tool 10 according to the present embodiment into the plate-like body 122 from its end. At that time, the operator fits the bolt pressing tool 10 so that the pair of parallel portions 40 pass through both sides of the bolt 140. Thereby, when fitting the bolt pressing tool 10 to the plate-like body 122, the parallel portion 40 sandwiches the bolt 140, and the parallel portion 40 faces the head contact portion 22 via the plate-like body 122. . 1 and 2 show a situation in which the bolt pressing tool 10 according to the present embodiment is fitted into the end portion of the plate-like body 122. FIG. If the bolt 140 is correctly inserted into the plate-like body 122, that is, if the root 160 of the bolt 140 is fitted in the hole 124 of the plate-like body 122, the head contact portion 22 will remove the head 152 of the bolt 140. Straddle. Along with this, the contact protrusion 32 of the head contact portion 22 contacts the head 152 of the bolt 140. When the head contact portion 22 straddles the head 152 of the bolt 140, the hook 30 is hooked on the head 152 of the bolt 140. The pressing direction elastic force generating portions 52 of the parallel portions 40 enter the holes 124 of the plate-like body 122 from both sides of the bolts 140. The pressing direction elastic force generating portion 52 that has entered approaches the edge of the hole 124 and is elastically deformed. In the case of the present embodiment, the pressing direction elastic force generating portion 52 corresponds to a position closest to the packing 112 among the edges of the hole 124 shown in the left half of FIG. In the edge of the hole 124 shown in the left half of FIG. In this place, there is a slight gap between the edge of the hole 124 and the pressing direction elastic force generating portion 52. In order to realize such contact, in the case of this embodiment, the form of the parallel portion 40 is appropriately designed according to the dimensions of the housing-type pipe joint 100 in which the bolt pressing tool 10 is to be fitted. The pressing direction elastic force generating unit 52 is elastically deformed, so that the pressing direction elastic force generating unit 52 generates an elastic force. The hook 30 is pressed against the head 152 of the bolt 140 by the elastic force. Further, when the head contact portion 22 straddles the head 152 of the bolt 140, the pinching direction elastic force generation portion 50 is elastically deformed so that the distance from the head contact portion 22 is increased. Due to the elastic deformation, the sandwiching direction elastic force generator 50 generates an elastic force. The direction of the elastic force is a direction in which the head 152 of the bolt 140 and the plate-like body 122 are sandwiched together with the head contact portion 22. The head contact part 22 straddles the head 152 of the bolt 140, the pinching direction elastic force generation part 50 generates an elastic force, and the pressing direction elastic force generation part 52 enters the hole 124 of the plate-like body 122. If elastically deformed, the mounting of the bolt pressing tool 10 according to the present embodiment is completed. If the root 160 of the head portion 152 of the bolt 140 is not fitted in the hole 124 of the plate-like body 122, the head contact portion 22 corresponds to the head portion 152 or the root 160 of the bolt 140. The head contact portion 22 does not straddle the head 152 of the bolt 140. In this case, the operator fits the bolt pressing tool 10 again after fitting the root 160 of the head 152 of the bolt 140 into the hole 124.

[Effect of bolt pressing tool according to this embodiment]
As described above, with the bolt pressing tool 10 according to the present embodiment, the bolt 140 is pressed against the plate-like body 122 without the base 160 of the head 152 of the bolt 140 being fitted into the hole 124 of the plate-like body 122. It is easy to detect that the bolt 140 is pressed against the plate-like body 122 while something is sandwiched between the head 152 of the bolt 140 and the plate-like body 122. Since these are easily detected, the risk that the bolt 140 is tightened without detecting them is reduced. As a result, it is possible to reduce the risk that tightening with the bolts 140 will be insufficient.

  Moreover, the bolt pressing tool 10 according to the present embodiment presses the bolt 140 against the plate-like body 122. Since it is pressed, rattling of the bolt 140 is suppressed. In addition, since the bolt 140 is pressed, when the housing-type pipe joint 100 is used at a high place, it is possible to reduce the risk of the bolt 140 dropping off. By making this possible, a person using the housing-type pipe joint 100 can obtain a sense of security.

  Moreover, in the bolt pressing tool 10 concerning this embodiment, the shape of the part except a both ends among hook parts 30 is linear. This part tends to have a smaller contact area with the bolt 140 than a planar part. In the portion where the contact area is reduced, rattling due to the unevenness of the surface of the bolt 140 is suppressed.

  Moreover, in the bolt pressing tool 10 concerning this embodiment, it arranges so that the parallel part 40 may mutually oppose. Accordingly, the bolt 140 is sandwiched between the parallel portions 40 when the bolt 140 is pressed against the plate-like body 122. Since the bolt 140 is sandwiched, rattling of the facing portion 24 is suppressed.

<Description of Second Embodiment>
[Description of structure]
FIG. 4A is a plan view of the bolt pressing tool 12 according to the present embodiment. FIG. 4B is a side view of the bolt pressing tool 12 according to the present embodiment. Based on FIG. 4 (A) and FIG. 4 (B), the structure of the bolt pressing tool 12 concerning this embodiment is demonstrated. The bolt pressing tool 12 according to the present embodiment is formed by bending one metal wire. The bolt pressing tool 12 according to the present embodiment includes a base portion 60, a head contact portion 62, and a facing portion 64.

  A head contact portion 62 and a facing portion 64 are connected to the base 60. In the case of this embodiment, the base part 60 consists of two linear parts parallel to each other. The head contact portion 62 protrudes from the base portion 20. The head contact portion 62 contacts the head 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. The facing part 64 protrudes from the base part 60. The facing portion 64 faces the head contact portion 62. When the bolt 140 is pressed against the plate-like body 122, the facing portion 64 sandwiches the head 152 of the bolt 140 and the plate-like body 122 together with the head contact portion 62 in an elastically deformed state.

  In the case of the present embodiment, the head contact portion 62 includes an annular portion 70 and a pair of connection projecting portions 72 and 72. The annular portion 70 contacts the head portion 152 of the bolt 140 when the bolt 140 is pressed against the plate-like body 122. The connection protrusions 72 and 72 are fixed to the base 60. The connection protrusions 72 and 72 protrude from the base 60. The connection protrusions 72 and 72 connect both ends of the annular portion 70 and the base portion 60.

  In the present embodiment, the facing portion 64 has a pair of parallel portions 80 and 80. The parallel parts 80 are opposed to the head contact part 62, respectively. The parallel parts 80 and 80 are arranged to face each other. In the case of the present embodiment, the parallel portion 80 is in contact with the plate-like body 122 when the bolt 140 is pressed against the plate-like body 122, so that the elastic force in the direction of pressing the annular portion 70 against the head 152 of the bolt 140. Is generated. By generating this elastic force, the bolt 140 is pressed against the plate-like body 122.

[Description of usage]
The method of using the bolt pressing tool 12 according to this embodiment is the same as that according to the first embodiment. Therefore, detailed description thereof will not be repeated here.

[Effect of bolt pressing tool according to this embodiment]
As described above, the bolt pressing tool 12 according to the present embodiment presses the bolt 140 against the plate-like body 122 without the root 160 of the head 152 of the bolt 140 being fitted into the hole 124 of the plate-like body 122. To make it easier to detect. The bolt pressing tool 12 according to the present embodiment makes it easy to detect that the bolt 140 is pressed against the plate-like body 122 while something is sandwiched between the head 152 of the bolt 140 and the plate-like body 122. . Since these are easily detected, the risk that the bolt 140 is tightened without detecting them is reduced. As a result, it is possible to reduce the risk that tightening with the bolts 140 will be insufficient.

  Further, the bolt pressing tool 12 according to the present embodiment presses the bolt 140 against the plate-like body 122. Since it is pressed, rattling of the bolt 140 is suppressed. In addition, since the bolt 140 is pressed, when the housing-type pipe joint 100 is used at a high place, it is possible to reduce the risk of the bolt 140 dropping off. By making this possible, a person using the housing-type pipe joint 100 can obtain a sense of security.

  Moreover, in the bolt pressing tool 12 concerning this embodiment, it arranges so that the parallel parts 80 and 80 may mutually oppose. Thereby, when the bolt 140 is pressed against the plate-like body 122, the bolt 140 is sandwiched between the parallel portions 80 and 80. Since the bolt 140 is sandwiched, rattling of the facing portion 64 is suppressed.

<Description of modification>
The embodiments disclosed herein are illustrative in all respects. The scope of the present invention is not limited based on the above-described embodiment, and various design changes may be made without departing from the spirit of the present invention.

  For example, the forms of the base parts 20 and 60, the head contact parts 22 and 62, and the facing parts 24 and 64 are not limited to those described above. These combinations are not limited to those described above. For example, the bolt pressing tool 10 according to the first embodiment may include the facing portion 64 according to the second embodiment instead of the facing portion 24. The bolt pressing tool 12 according to the second embodiment may include the facing portion 24 according to the first embodiment instead of the facing portion 64.

  Moreover, the bolt pressing tool concerning this invention is not limited to what bent one metal wire. For example, the bolt pressing tool according to an embodiment of the present invention may be a single plate material machined. Moreover, the raw material of the bolt pressing tool concerning this invention is not specifically limited. Examples of the material include spring steel, stainless steel, and synthetic resin.

  Moreover, the bolt pressing tool according to the present invention is not limited to one in which the respective parts included in the bolt pressing tool are integrated. For example, any one of the base portions 20 and 60, the head contact portions 22 and 62, and the facing portions 24 and 64 may be attached to the other.

  Moreover, the contact form at the time of the head contact part concerning this invention contacting the head 152 of the bolt 140 is not specifically limited. However, “contact” with respect to the head contact portion means contacting the head 152 of the bolt 140 so that the bolt 140 can be pressed against the plate-like body 122.

  In addition, as another invention related to the present invention, there is a bolt limiter that limits the movable range of the bolt 140 that penetrates the plate-like body 122. The bolt limiter includes a base portion and a facing portion. The bolt limiter includes a bolt spanning portion instead of the head contact portions 22 and 62. This base is the same as the base according to the present invention. The bolt spanning portion protrudes from the base portion. The bolt straddling portion straddles the head 152 of the bolt 140 when the movable range of the bolt 140 is limited. The facing portion protrudes from the base portion. The facing portion faces the bolt straddling portion with the plate-like body 122 sandwiched when the movable range of the bolt 140 is limited. The difference between the bolt restricting tool and the bolt pressing tool according to the present invention is as follows. The head contact portions 22 and 62 according to the present invention contact the head 152 of the bolt 140 to such an extent that the bolt 140 can be pressed against the plate-like body 122, whereas the bolt straddle portion is the head 152 of the bolt 140. It straddles. Whereas the opposing portion according to the present invention presses the bolt 140 against the plate-like body 122, the head contact portions 22 and 62 and the head 152 of the bolt 140 and the plate-like body 122 are sandwiched in an elastically deformed state. The facing portion applied to the bolt restrictor may be anything that faces the bolt straddling portion with the plate-like body 122 sandwiched when the movable range of the bolt 140 is restricted. In this bolt limiter, the facing portion faces the bolt spanning portion with the plate-like body 122 interposed therebetween. The bolt straddling portion straddles the head 152 of the bolt 140. Thus, when the facing portion is opposed to the bolt spanning portion with the plate-like body 122 sandwiched therebetween, and the bolt spanning portion straddles the head 152 of the bolt 140, the bolt 140 from the plate-like body 122 is used. The protruding height of the head 152 is limited based on the distance between the facing portion and the bolt spanning portion. Since the protrusion height of the head 152 of the bolt 140 is limited, the risk that the tip of the bolt 140 penetrating the plate-like body 122 is insufficiently protruded is reduced. As a result, the risk that the bolt 140 penetrating the plate-like body 122 does not sufficiently protrude can be reduced.

10, 12 ... Bolt pressing tool,
20, 60 ... the base,
22, 62 ... head contact portion,
24, 64 ... facing part,
30 ... Hook part,
32 ... contact protrusion,
40, 80 ... parallel part,
50: sandwiching direction elastic force generating part,
52 ... Pressing direction elastic force generating portion,
70 ... annular part,
72 ... connection protrusion,
100: Housing type pipe joint,
110 ... housing,
112 ... packing,
120 ... concave groove,
122 ... plate-shaped body,
124 ... hole,
140 ... bolts,
142 ... nuts,
150 ... shaft part,
152 ... head,
160 ... the root,

Claims (5)

A bolt pressing tool for pressing a bolt that penetrates a hole in the plate-like body and has a head against the plate-like body,
The bolt pressing tool is
The base,
A head contact portion that protrudes from the base and contacts the head of the bolt when the bolt is pressed against the plate-like body;
A state in which the head of the bolt and the plate-like body are elastically deformed together with the head-contacting portion when protruding from the base, facing the head-contacting portion, and pressing the bolt against the plate-like body With an opposing part sandwiched between ,
The facing portion is
A pinching direction elastic force generating portion fixed to the base portion, protruding from the base portion and facing the head contact portion;
When the bolt is inserted into the hole of the plate-like body and the head contact portion straddles the head of the bolt, the bolt enters the hole of the plate-like body from the side of the bolt and elastically hits the edge of the hole of the plate-like body. A bolt pressing tool , comprising: a pressing direction elastic force generating portion that is deformed and connected to the sandwiching direction elastic force generating portion . The head contact portion is
A hook portion that hooks onto the head of the bolt when the bolt is pressed against the plate-like body;
A contact protrusion that is fixed to the base, protrudes from the base, connects the hook and the base, and contacts the head of the bolt when the bolt is pressed against the plate-like body; And
The facing portion is
Fixed to the base, protrudes from the base, opposes the head contact portion, and the head of the bolt and the head contact portion together with the head contact portion by elastic deformation when pressing the bolt against the plate-like body A pinching direction elastic force generating section for generating an elastic force in a direction of pinching the plate-like body;
Elasticity in the pressing direction, which is connected to the pinching direction elastic force generating portion and generates elastic force by elastic deformation in the direction of pressing the hook portion against the head of the bolt when the bolt is pressed against the plate-like body. It has a force generation part, The bolt pressing tool of Claim 1 characterized by the above-mentioned.   The bolt pressing tool according to claim 2, wherein at least a part of the hook is linear. The facing portion is
A plurality of the sandwiching direction elastic force generating parts that face each of the head contact parts and are arranged to face each other ,
A plurality of the pressing direction elastic force generation units connected to the plurality of sandwiching direction elastic force generation units, respectively facing the head contact portions and arranged to face each other. The bolt pressing tool according to Item 1.   The bolt pressing tool according to claim 1, wherein at least a part of the head contact portion straddles the head of the bolt when pressing the bolt against the plate-like body.

Images