JP2019113154A - Fixing tool and manufacturing method for fixing tool - Google Patents

Abstract

To firmly fix a rod.
A tubular member (100) has an inner side surface (112). The inner side surface 112 defines an inner space 110. The rod 200 has an outer side surface 212 in the internal space 110 of the tubular member 100 in one cross section of the tubular member 100. The member 300 has a first surface 312 and a second surface 314. In the one cross section, the first surface 312 faces the inner side surface 112 of the cylindrical member 100, and the second surface 314 faces the outer side surface 212 of the rod 200. The member 300 is made of resin.
[Selected figure] Figure 2

Description

  The present invention relates to a fixing device and a method of manufacturing the fixing device.

  Anchors for anchoring the rod to the object have been developed. Patent Document 1 describes an example of a fixing device. The anchor comprises a socket and a wedge. The socket has an inner wall surface. The rod passes through the area enclosed by the inner wall of the socket. The inner wall surface of the socket has a conical surface formed such that the diameter decreases toward the front of the socket. The wedge is located between the outer periphery of the rod and the inner wall of the socket. As the wedge moves toward the front of the socket, the wedge bites firmly between the outer peripheral surface of the rod and the inner wall surface of the socket. These actions can withstand strong tensile forces on the rod.

JP, 2016-3511, A

  The inventor examined a structure for firmly fixing a rod by a fixing tool.

  The object of the invention is to fix the rod firmly.

According to the invention
A cylindrical member having an inner side surface defining an inner space, a rod having an outer side surface in the inner space of the cylindrical member in one cross section of the cylindrical member, and an inner side of the cylindrical member in the one cross section A member having a first surface opposite to a side surface, and a second surface opposite to the outer surface of the rod in the one section;
The member is provided with a fixing device made of resin.

According to the invention
Preparing a member made of a resin and having a first surface;
Preparing a tubular member having an inner surface defining an inner space, the tubular member along one direction such that the first surface of the member faces the inner surface of the tubular member Inserting into the interior space of
Processing the member such that a second surface is formed on the opposite side of the first surface of the member;
A rod having an outer surface is prepared, and the rod is inserted into the inner space of the tubular member along the one direction such that the outer surface of the rod faces the second surface of the member. Process,
A method of manufacturing a fixing device is provided.

  According to the present invention, the rod can be firmly fixed.

It is a sectional view showing the fixing tool concerning an embodiment. It is an AA 'cross section figure of FIG. It is a figure for demonstrating an example of the detail between the outer surface of a rod, and the 2nd surface of a member. It is a figure for demonstrating an example of the method of clamp | tightening a member with a cylindrical member and a rod. It is a figure for demonstrating an example of the method of clamp | tightening a member with a cylindrical member and a rod. It is a figure which shows the modification of a member. FIG. 7 is a view for explaining an example of a method of manufacturing the fixing tool shown in FIGS. 1 and 2; FIG. 7 is a view for explaining an example of a method of manufacturing the fixing tool shown in FIGS. 1 and 2; FIG. 7 is a view for explaining an example of a method of manufacturing the fixing tool shown in FIGS. 1 and 2; FIG. 7 is a view for explaining an example of a method of manufacturing the fixing tool shown in FIGS. 1 and 2; FIG. 7 is a view for explaining an example of a method of manufacturing the fixing tool shown in FIGS. 1 and 2;

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be appropriately omitted.

  FIG. 1 is a cross-sectional view showing a fixing device 10 according to the embodiment. FIG. 2 is a cross-sectional view taken along the line A-A 'of FIG. FIG. 2 shows a cross section perpendicular to the Z direction shown in FIG. For the purpose of explanation, the fixing member 400 (FIG. 1) is not shown in FIG.

  The outline of the fixing device 10 will be described with reference to FIG. The fixing device 10 includes a cylindrical member 100, a rod 200 and a member 300. The tubular member 100 has an inner side surface 112. The inner side surface 112 defines an inner space 110. The rod 200 has an outer side surface 212 in the internal space 110 of the cylindrical member 100 in one cross section (cross section shown in FIG. 2) of the cylindrical member 100. The member 300 has a first surface 312 and a second surface 314. In the one cross section (the cross section shown in FIG. 2), the first surface 312 faces the inner side surface 112 of the cylindrical member 100, and the second surface 314 faces the outer side surface 212 of the rod 200. The member 300 is made of resin.

  According to the configuration described above, the rod 200 can be firmly fixed. Specifically, the member 300 is made of resin. Therefore, the member 300 can be elastically deformed. Therefore, between the member 300 and the rod 200, a force is applied in a direction from the member 300 toward the rod 200 by elastic deformation of the member 300, and between the member 300 and the cylindrical member 100, the member 300 moves from the member 300 to the cylindrical member 100. Force is applied in the direction. Thus, the rod 200 can be firmly fixed.

  The details of the fixing device 10 will be described with reference to FIG.

  In the example shown in FIG. 1, the rod 200 is fixed to the object O. The object O has a surface S. The fixing tool 10 is located on the surface S of the object O.

  The tubular member 100 has a first end 102 and a second end 104. In the axial direction of the rod 200 (the Z direction in FIG. 1), the first end 102 is one end of the cylindrical member 100, and the second end 104 is the other end of the first end 102. The inner side surface 112 of the tubular member 100 has a tapered shape from the first end 102 to the second end 104. Specifically, the area of the region surrounded by the inner side surface 112 of the cylindrical member 100 in the cross section (for example, the cross section shown in FIG. 2) perpendicular to the axial direction (Z direction in FIG. 1) of the rod 200 (FIG. 2) The cross-sectional area of the inner space 110 of the cylindrical member 100 decreases from the first end 102 to the second end 104 of the tubular member 100.

  The member 300 has a first end 302 and a second end 304. In the axial direction of the rod 200 (the Z direction in FIG. 1), the first end 302 is one end of the member 300 and is located on the same side as the first end 102 of the cylindrical member 100. Is the opposite end of the first end 302 and is located on the same side as the second end 104 of the tubular member 100. The member 300 has a tapered shape from the first end 302 to the second end 304. Specifically, the cross-sectional area of member 300 in a cross section (for example, the cross section shown in FIG. 2) perpendicular to the axial direction (Z direction in FIG. 1) of rod 200 is the first end 302 to the second end of member 300 It becomes smaller as it goes to 304.

  In one example, the tubular member 100 can be movable relative to the member 300 in a direction from the second end 304 to the first end 302 of the member 300. In this example, the member 300 can be firmly tightened by the rod 200 and the tubular member 100.

  In another example, the member 300 can be movable relative to the tubular member 100 in a direction from the first end 102 to the second end 104 of the tubular member 100. Also in this example, the member 300 can be firmly tightened by the rod 200 and the cylindrical member 100.

  In the example shown in FIG. 1, the cylindrical member 100 is fixed to the surface S of the object O by the fixing member 400. As apparent from the description of the present embodiment, the method of fixing the cylindrical member 100 to the surface S of the object O is not limited to the example (fixing member 400) shown in FIG.

  In the example shown in FIG. 1, the tubular member 100 is movable by the holding member 500 relative to the member 300 in the direction from the second end 304 to the first end 302 of the member 300. That is, the holding member 500 can pull the tubular member 100 in the direction from the second end 304 to the first end 302 of the member 300. Therefore, as described above, the member 300 can be firmly tightened by the rod 200 and the cylindrical member 100. As is apparent from the description of the present embodiment, the method of tightening the member 300 by the rod 200 and the cylindrical member 100 is not limited to the example shown in FIG. As described above, the member 300 may be movable relative to the tubular member 100 in a direction from the first end 102 to the second end 104 of the tubular member 100. That is, the member 300 may be able to be pushed in a direction from the first end 102 to the second end 104 of the tubular member 100.

  The details of the fixing device 10 will be further described with reference to FIG. FIG. 2 shows a cross section perpendicular to the axial direction (Z direction in FIG. 1) of the rod 200. As shown in FIG.

  In the example shown in FIG. 2, a plurality of members 300 (specifically, three members 300) are aligned along the outer side surface 212 of the rod 200. As apparent from the description of the present embodiment, the number of members 300 aligned along the outer side surface 212 of the rod 200 is not limited to the example (three) shown in FIG.

  The shape of the internal space 110 of the cylindrical member 100 is substantially circular. The inner side surface 112 of the cylindrical member 100 is curved at a first curvature (1 / R1) (R1 indicates the radius of the circumference along the inner side surface 112) in the region facing the first surface 312 of the member 300. doing.

  The first surface 312 of the member 300 is curved with a second curvature (1 / R2) (R2 represents the radius of the circumference along the first surface 312). The second curvature is greater than the first curvature (ie, R2 <R1).

  The first surface 312 of the member 300 has a first area 312a, a second area 312b, and a third area 312c. The first area 312 a and the second area 312 b are separated from the inner side surface 112 of the cylindrical member 100. The third region 312c is between the first region 312a and the second region 312b, and is closer to the inner side surface 112 of the tubular member 100 than the first region 312a and the second region 312b.

  According to the configuration described above, as described later with reference to FIGS. 4 and 5, the member 300 can be firmly tightened by the cylindrical member 100 and the rod 200, and by tightening by the cylindrical member 100 and the rod 200. Damage to the member 300 can be suppressed.

  The shape of the rod 200 is substantially circular. The outer side surface 212 of the rod 200 is curved at a third curvature (1 / R3) (R3 represents the radius of the circumference along the outer side surface 212) in the region facing the second surface 314 of the member 300. There is.

  The second surface 314 of the member 300 is curved at a fourth curvature (1 / R4) (R4 represents the radius of the circumference along the second surface 314). The fourth curvature is the same as or smaller than the third curvature (ie, R4RR3).

  The second surface 314 of the member 300 has a first area 314a, a second area 314b and a third area 314c. The first area 314 a and the second area 314 b are spaced from the outer surface 212 of the rod 200. The third area 314 c is between the first area 314 a and the second area 314 b and is closer to the outer surface 212 of the rod 200 than the first area 314 a and the second area 314 b.

  According to the above-described configuration, as described later with reference to FIGS. 4 and 5, the member 300 can be firmly tightened by the cylindrical member 100 and the rod 200, and by tightening the cylindrical member 100 and the rod 200. Damage to the member 300 can be suppressed.

  In one example, the tubular member 100 is made of resin or metal.

  In one example, the rod 200 is made of a resin, specifically, for example, FRP (Fiber-Reinforced Plastics).

  The member 300 is made of resin. Therefore, the member 300 can be elastically deformed. Therefore, as described above, the rod 200 can be firmly fixed.

  FIG. 3 is a view for explaining an example of details between the outer side surface 212 of the rod 200 and the second surface 314 of the member 300. As shown in FIG. FIG. 3 shows a cross section along the Z direction shown in FIG.

  An adhesive 600 is located between the outer surface 212 of the rod 200 and the second surface 314 of the member 300. Therefore, the adhesive 600 can firmly bond the outer surface 212 of the rod 200 and the second surface 314 of the member 300.

  A groove 316 is formed in the second surface 314 of the member 300. A portion of the adhesive 600 is embedded in the groove 316. Accordingly, the contact surface of the adhesive 600 with the outer surface 212 of the rod 200 can be enlarged. Thus, the adhesive 600 can be firmly adhered to the outer surface 212 of the rod 200.

  FIGS. 4 and 5 are views for explaining an example of a method of tightening the member 300 by the cylindrical member 100 and the rod 200. FIG.

  As described above, the cylindrical member 100 moves relative to the member 300 or the member 300 moves relative to the cylindrical member 100 along the axial direction (the Z direction in FIG. 1) of the rod 200. The member 300 can be tightened by the tubular member 100 and the rod 200. FIG. 4 shows the state before the tubular member 100 or the member 300 moves, and FIG. 5 shows the state after the tubular member 100 or the member 300 moves.

  In FIG. 4, the first surface 312 of the member 300 is in contact with the inner side surface 112 of the cylindrical member 100 at only one point. Similarly, the second surface 314 of the member 300 is in contact with the outer surface 212 of the rod 200 at only one point. In addition, the member 300 may be in direct contact with the cylindrical member 100 and the rod 200, or the cylindrical member 100 and the rod 200 may be made of a specific material (for example, the adhesive 600 shown in FIG. 3). It may be in contact.

  On the other hand, in FIG. 5, the contact area between the first surface 312 of the member 300 and the inner side surface 112 of the cylindrical member 100 is expanded, and almost the entire first surface 312 of the member 300 is the inner side of the cylindrical member 100. Contact 112. Similarly, the contact area between the second surface 314 of the member 300 and the outer surface 212 of the rod 200 is also expanded, and substantially the entire second surface 314 of the member 300 is in contact with the outer surface 212 of the rod 200.

  According to the example shown in FIG. 5, the force from the cylindrical member 100 can be received over almost the entire surface of the first surface 312 of the member 300, and the force from the rod 200 over the substantially entire surface of the second surface 314 of the member 300. Can receive. Thus, the member 300 can withstand the drag received from the tubular member 100 and the drag received from the rod 200. Therefore, the member 300 can be firmly tightened by the cylindrical member 100 and the rod 200.

  According to the example shown in FIGS. 4 and 5, the contact area between the first surface 312 of the member 300 and the inner side surface 112 of the cylindrical member 100 is substantially at the center of the first surface 312 (third area 312c and its periphery) From FIG. 4) to the periphery (the first area 312a and the second area 312b) (FIG. 5). Therefore, even if the member 300 is tightened by the cylindrical member 100 and the rod 200, the force from the inner side surface 112 of the cylindrical member 100 can be prevented from being concentrated on only one specific point of the first surface 312 of the member 300. . Therefore, damage to the member 300 due to tightening of the cylindrical member 100 and the rod 200 can be suppressed.

  According to the example shown in FIGS. 4 and 5, the contact area between the second surface 314 of the member 300 and the outer surface 212 of the rod 200 is substantially at the center of the second surface 314 (third area 314c and its periphery) (FIG. 4) ) (The first area 314a and the second area 314b) (FIG. 5). Therefore, even if the member 300 is tightened by the cylindrical member 100 and the rod 200, the force from the outer side surface 212 of the rod 200 can be prevented from being concentrated on only one specific point of the second surface 314 of the member 300. Therefore, damage to the member 300 due to tightening of the cylindrical member 100 and the rod 200 can be suppressed.

  FIG. 6 is a view showing a modified example of the member 300. As shown in FIG.

  The first surface 312 of the member 300 has a first area 312a, a second area 312b, and a third area 312c. The third region 312c is substantially flat between the first region 312a and the second region 312b. The first area 312a and the second area 312b are curved.

  According to the configuration described above, when the member 300 is tightened by the cylindrical member 100 and the rod 200 as shown in FIGS. 4 and 5, the third region 312 c of the first surface 312 is the first region 312 a of the first surface 312. And the inner side surface 112 of the cylindrical member 100 prior to the second region 312 b. Since the third region 312c of the first surface 312 is flat, the force received from the member 300 from the inner side surface 112 of the cylindrical member 100 can be distributed substantially uniformly by the third region 312c.

  7 to 11 are views for explaining an example of a method of manufacturing the fixing device 10 shown in FIGS. 1 and 2. FIGS. 7 (b) to 11 (b) are cross-sectional views taken along the line PP 'in FIGS. 7 (a) to 11 (a), respectively.

  As shown in FIG. 7, the initial member 300a is prepared. The initial member 300a is made of resin. Next, a hole 322 is formed in the initial member 300a along one direction (the Z direction in FIG. 7A).

  Then, as shown in FIG. 8, the initial member 300a is cut along one direction (Z direction in FIG. 8A) (along the broken line L in FIGS. 8A and 8B). . The initial member 300a is separated into a plurality of members 300 by cutting the initial member 300a. In the example shown in FIG. 8, the initial member 300 a is cut such that a cut (broken line L) formed by cutting the initial member 300 a passes through the hole 322. By forming the holes 322 in advance, it is easy to separate the initial member 300 a into a plurality of members 300.

  Next, as shown in FIG. 9, the member 300 is cylindrical along one direction (the Z direction in FIG. 9A) so that the first surface 312 of the member 300 faces the inner side surface 112 of the cylindrical member 100. It is inserted into the internal space 110 of the rod-like member 100. In the cross section shown in FIG. 9B, as in the cross section shown in FIG. 2, the inner side surface 112 of the cylindrical member 100 has a first curvature (1/0) in the region facing the first surface 312 of the member 300. The first surface 312 of the member 300 is curved at a second curvature (1 / R2), and the second curvature is larger than the first curvature (that is, R2 <R1). ). Furthermore, in the cross section shown in FIG. 9B, the first surface 312 of the member 300 has the first area 312a, the second area 312b, and the third area 312c, similarly to the cross section shown in FIG. ing.

  Next, as shown in FIG. 10, the member 300 is processed so that a second surface 314 is formed on the opposite side of the first surface 312 of the member 300. In the process illustrated in FIG. 10, the groove 316 illustrated in FIG. 3 may be formed on the second surface 314 of the member 300.

  Then, as shown in FIG. 11, the rod 200 is cylindrical along one direction (Z direction in FIG. 11A) so that the outer surface 212 of the rod 200 faces the second surface 314 of the member 300. It is inserted into the internal space 110 of the member 100. In the cross section shown in FIG. 11B, the outer surface 212 of the rod 200 has a third curvature (1 / R3) in the region facing the second surface 314 of the member 300, similarly to the cross section shown in FIG. The second surface 314 of the member 300 is curved at a fourth curvature (1 / R4), and the fourth curvature is the same as or smaller than the third curvature (ie, the third curvature) , R4 R R3). Furthermore, in the cross section shown in FIG. 11B, the second surface 314 of the member 300 has a first area 314a, a second area 314b, and a third area 314c, similarly to the cross section shown in FIG. ing.

  Thus, the fixing device 10 is manufactured.

  As mentioned above, according to this embodiment, a rod can be fixed firmly.

  Although the embodiments of the present invention have been described above with reference to the drawings, these are merely examples of the present invention, and various configurations other than the above can also be adopted.

Reference Signs List 10 fixing device 100 cylindrical member 102 first end 104 second end 110 internal space 112 inner side surface 200 rod 212 outer surface 300 member 300 a initial member 302 first end 304 second end 312 first surface 312 a first region 312 b second Region 312c Third region 314 Second surface 314a First region 314b Second region 314c Third region 316 Groove 322 Hole 400 Fixing member 500 Holding member 600 Adhesive

Claims (16)

A tubular member having an inner surface defining an inner space;
A rod having an outer surface in the internal space of the tubular member in one cross section of the tubular member;
A member having a first surface facing the inner surface of the tubular member in the one cross section, and a second surface facing the outer surface of the rod in the one cross section;
Equipped with
The member is a fixing tool made of resin. In the fixing device according to claim 1,
In the one cross section, the inner surface of the cylindrical member is curved at a first curvature in a region facing the first surface of the member, and the first surface of the member has a first curvature. Anchors curved with a large second curvature. In the fixing device according to claim 1 or 2,
In the one cross section, the first surface of the member is a first region spaced from the inner surface of the tubular member, a second region spaced from the inner surface of the tubular member, and the first region And a third area between the second area and closer to the inner surface of the tubular member than the first area and the second area. In the fixing device according to claim 1,
In the one cross section, the first surface of the member is a first region spaced from the inner surface of the tubular member, a second region spaced from the inner surface of the tubular member, and the first region And a substantially flat third area between the second area and the second area. The fixing device according to any one of claims 1 to 4.
In the one cross section, the outer surface of the rod is curved at a third curvature in a region facing the second surface of the member, and the second surface of the member is the same as the third curvature or The fixing device curved at a fourth curvature smaller than the third curvature. In the fixing device according to any one of claims 1 to 5,
In the one cross section, the second surface of the member is a fourth region spaced from the outer surface of the rod, a fifth region spaced from the outer surface of the rod, the fourth region, and the fifth And a sixth area located between the areas and closer to the outer surface of the rod than the fourth area and the fifth area. The fixing device according to any one of claims 1 to 6.
The fixing device in which a plurality of the members are arranged along the outer side surface of the rod in the one cross section. The fixing device according to any one of claims 1 to 7.
A fuser comprising an adhesive positioned between the outer surface of the rod and the second surface of the member. In the fixing device according to claim 8,
A groove is formed on the second surface of the member,
The fixing device, wherein a part of the adhesive is embedded in the groove. The fixing device according to any one of claims 1 to 9.
The rod has an axial direction in a direction intersecting the one cross section,
The tubular member has a first end in the axial direction and a second end opposite to the first end,
The area of the internal space of the cylindrical member in a cross section perpendicular to the axial direction decreases in the direction from the first end to the second end of the cylindrical member. In the fixing device according to claim 10,
The member has a first end in the axial direction and a second end opposite to the first end,
The first end of the member is located on the same side as the first end of the tubular member,
The second end of the member is located on the same side as the second end of the tubular member,
The tubular member is movable with respect to the member in a direction from the second end to the first end of the member, or the member is the tubular member with respect to the tubular member. A fixing device movable in a direction from the first end to the second end. Preparing a member made of a resin and having a first surface;
Preparing a tubular member having an inner surface defining an inner space, the tubular member along one direction such that the first surface of the member faces the inner surface of the tubular member Inserting into the interior space of
Processing the member such that a second surface is formed on the opposite side of the first surface of the member;
A rod having an outer surface is prepared, and the rod is inserted into the inner space of the tubular member along the one direction such that the outer surface of the rod faces the second surface of the member. Process,
A method of manufacturing a fixing device, including: In the method of manufacturing a fixing device according to claim 12,
The method of manufacturing a fixing device, in the step of preparing the member, preparing an initial member made of resin and cutting the initial member along the one direction to separate the initial member into the plurality of members. In the method of manufacturing a fixing device according to claim 13,
Forming a hole in the initial member along the one direction before cutting the initial member;
The method of manufacturing a fixing device, wherein, in the step of cutting the initial member, the initial member is cut such that a cut formed by cutting the initial member passes through the hole. A method of manufacturing a fixing device according to any one of claims 12 to 14,
In the cross section perpendicular to the one direction, the inner side surface of the cylindrical member is curved at a first curvature in a region facing the first surface of the member,
In the cross section perpendicular to the one direction, the first surface of the member is curved at a second curvature larger than the first curvature,
In the step of inserting the member into the internal space of the tubular member, the member is positioned so that the position of the cross section of the member and the position of the cross section of the tubular member are aligned along the one direction. A manufacturing method of a fixing tool inserted in said internal space of a cylindrical member. In the method of manufacturing a fixing device according to any one of claims 12 to 15,
In the cross section perpendicular to the one direction, the outer side surface of the rod is curved at a third curvature in a region facing the second surface of the member,
In the cross section perpendicular to the one direction, the second surface of the member is curved at a fourth curvature which is the same as or smaller than the third curvature.
In the step of inserting the rod into the internal space of the tubular member, the rod has the tubular shape such that the position of the cross section of the rod and the position of the cross section of the member are aligned along the one direction. A method of manufacturing a fixing device, which is inserted into the inner space of a member.

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