Fixing part

Abstract

A fixing tool for positioning an object to be fixed with respect to an object to be fixed having a screw-shaped cylinder and fixing the object to the object to be fixed, the fixing tool being provided with: a connection part on which a screw capable of fitting with the cylinder is formed; an extension part on which a male screw is formed; and a flange part.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This international application claims the priority of Japanese Patent Application No. 2022-078471 filed in the Japan Patent Office on May 11, 2022, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present invention relates to a fixing device for positioning and fixing a fixed object with a predetermined positional relationship. Background Art

[0004] In the past, a fixing device is known, which is used to position a plate-shaped fixing object relative to a fixed object having a threaded column in the following positional relationship and fix the fixing object to the fixed object, wherein the fixing object extends along a surface intersecting with the axis of the column, and the positional relationship is such that the axis of a through hole penetrating the fixing object in the front and back directions of the fixing object is along the axis of the column.

[0005] As an example, the fixing device described in patent document 1 comprises: a first fixing component (through bolt), which is located between the fixed object (fixing component) and the fixing object on the surface side of one side of the fixing object (adjusting component) in the front-to-back direction and is connected to the column (fixing bolt); a second fixing component (nut), which passes through a through hole (bolt hole) on the surface side of the fixing object on the other side in the front-to-back direction and is connected to the first fixing component; and a third fixing component (fastening bolt), which clamps and fixes the first fixing component between the third fixing component and the column from the other side of the fixing object in the front-to-back direction, and the third fixing component has a threaded shape.

[0006] In the above-mentioned fixing device, the first fixing component is fixed to the column through the third fixing component, and after the fixing object is positioned by using the flange of the first fixing component (adjustment component support surface), the fixing object is clamped between the flange of the first fixing component and the second fixing component to be fixed. In this case, after the first fixing component is fixed to an arbitrary position of the column in the axial direction, the first fixing component is maintained in this state so that it does not rotate, and then the third fixing component is engaged with the column. Thus, the position for positioning the fixing object (i.e., the position of the flange) can also be arbitrarily adjusted according to the position of the first fixing component. Thus, all operations from positioning the fixing object to fixing the fixing object can be implemented from the other side of the fixing object in the front and back directions.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Utility Model Publication No. 03-047826 Summary of the invention

[0010] Problem that the invention aims to solve

[0011] However, in this fixture, the first fixing member needs to be fixed to an arbitrary position of the column in the axial direction, and then the third fixing member needs to be fitted to the column while keeping it from rotating, so there is room for improvement in terms of operability.

[0012] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a technique for improving the operability of a fastener compared with the related art.

[0013] Solutions to the problem

[0014] The first scheme of the present disclosure for solving the above-mentioned problems is a fixing device for positioning a plate-shaped fixing object relative to a fixing object having a threaded column in the following positional relationship and fixing the fixing object to the fixing object, wherein the fixing object extends along a surface intersecting with the axis of the column, and the positional relationship is such that the axis of a through hole penetrating the fixing object in the front-back direction of the fixing object is along the axis of the column, and the fixing device comprises: a connecting portion having a threaded connection that can be engaged with the column formed on one surface side of the fixing object in the front-back direction. An extension portion, which extends from the connecting portion through the through hole to a length that can reach the surface side of the other side of the fixed object in the front and back directions, and an external thread for connection is formed on the outer peripheral surface of the area on the surface side of the other side that can be reached; and a flange portion, which is a component that extends from the connecting portion and is larger than the diameter of the through hole. When the connecting portion is engaged with the column, a contact surface is formed on the flange portion, and the contact surface can directly or indirectly contact the surface of the fixed object on one side in the front and back directions. The thread of the connecting portion and the external thread of the extension portion are both formed with the same pitch as that of the column.

[0015] Furthermore, the above-mentioned solution can also be implemented as a second solution as shown below.

[0016] In the second scheme, the fixing device also has a fixing component, which can be connected to the extension part on the surface side of the fixing object on the other side in the front and back directions. The fixing component is a cylindrical component, which extends in a manner of surrounding a portion of the extension part on the surface side of the fixing object on the other side in the front and back directions around the axis of the column, and an internal thread for connection is formed along the inner circumferential surface of the fixing component with the same pitch as that of the column, and the internal thread can be engaged with the external thread of the extension part.

[0017] Furthermore, the above-mentioned solution can also be implemented as a third solution as shown below.

[0018] In the third scheme, when an external thread is formed along the outer circumferential surface of the column, the connecting portion is a cylindrical component extending in a manner of surrounding the column around the axis of the column, and the thread of the connecting portion is formed along the inner circumferential surface of the connecting portion and is an internal thread for connection that can be engaged with the external thread of the column.

[0019] In the fixing device of the above scheme, after the connecting portion is fitted into the column, the fixing object is positioned relative to the fixed object by the flange portion or the fixing member, and the fixing object is clamped between the flange portion and the fixing member to be fixed. Therefore, all operations from positioning the fixing object relative to the fixed object to fixing the fixing object can be performed from the other side of the fixing object in the front-back direction.

[0020] The fixing member can be displaced to any position of the column in the axial direction according to the engagement state of the thread of the fixing member and the column, so the position of the fixing object relative to the fixed object can be arbitrarily adjusted by the flange portion according to the position of the fixing member. Here, in the state where the fixing member is installed, by holding the fixing member so that it does not rotate, only the fixing member body (connecting portion, extension portion, and flange portion, the same below) can be displaced relative to the column.

[0021] In addition, the fixing member can be displaced to any position of the column in the axial direction according to the engagement state between the fixing member and the external thread of the extension portion, so the position of the fixed object relative to the fixed object can be arbitrarily adjusted by the fixing member according to the position of the fixing member. When the fixing member is rotated, the fixing body is held so as not to rotate, so that only the fixing member can be displaced relative to the column.

[0022] As described above, in the above-mentioned various types of fixings, by holding one of the fixing body and the fixing member and rotating the other, only the other can be displaced relative to the column and fixed. This is because the threads of the fixing are formed with the same pitch, so that the above-mentioned positioning and fixing can be achieved through a continuous operation, thereby improving operability.

[0023] Furthermore, each of the above-mentioned solutions can also be implemented as a fourth solution as shown below.

[0024] In the fourth embodiment, a retaining piece is formed on the end side of the region of the extension portion that can reach the other surface side of the fixed object in the front-back direction, and the retaining piece retains the end side and is used to control the rotation of the extension portion around the axis of the column.

[0025] In the fixing tool according to the fourth aspect, by using the holding piece, the work of holding the fixing tool main body and rotating the fixing member can be efficiently performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front cross-sectional view of a fixing member in an installed state according to an embodiment of the present invention, taken along a plane formed by an axial direction and a direction intersecting the axial direction.

[0027] Figure 2 This is a front cross-sectional view of a fixing member according to an embodiment of the present invention, taken along a plane formed by an axial direction and a direction intersecting the axial direction.

[0028] Figure 3 It is a front cross-sectional view of a fixing member according to another embodiment of the present invention.

[0029] Figure 4 It is a front cross-sectional view of a fixing member according to still another embodiment of the present invention.

[0030] Figure 5 This is a front cross-sectional view showing a state in which a fixing object is positioned and fixed relative to a fixed object by a fixing tool according to an embodiment of the present invention.

[0031] Description of Reference Numerals

[0032] 1..·fixing member; 10…fixed object; 11…column; 13…axis; 15…external thread; 17…internal thread; 20…fixed object; 21…through hole; 23…axis; 25…buffer component; 27…buffer component; 100…main body; 111…thread; 121…external thread; 123…retaining sheet; 130…flange; 131…contact surface; 200…fixing member; 210…internal thread; 220…contact surface. DETAILED DESCRIPTION

[0033] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0034] (1) Overall composition

[0035] like Figure 1As shown, the fixing member 1 is used to position a plate-shaped fixing object 20 relative to a fixed object 10 having a threaded column 11 in the following positional relationship and fix the fixing object 20 to the fixed object 10, wherein the fixing object 20 extends along a surface intersecting with the axis 13 of the column 11, and the positional relationship is such that the axis 23 of the through hole 21 penetrating the fixing object 20 in the front and back directions of the fixing object 20 is along the axis 13 of the column 11. Here, the case where the axis 23 of the through hole 21 coincides with the axis 13 of the column 11 is shown, however, in the present disclosure, depending on factors such as the accuracy of fixing and positioning of each component, the case where the two axes do not coincide may also be included.

[0036] In this embodiment, the following configuration is exemplified, in which the pillar 11 extends from the back side of the fixed object 10 toward the Figure 1 The outer peripheral surface of the column 11 is formed with a Figure 1 The upper end) side toward the front end ( Figure 1 The lower end) side has an external thread 15 extending in a spiral shape.

[0037] The fixing member 1 is configured to be fixed on one surface ( Figure 1 The upper surface of the main body 100 of the column 11 is connected to the other surface ( Figure 1 The lower surface) side is connected to the fixing component 200.

[0038] The main body 100 is interposed between the fixed object 10 and the fixed object 20, and Figure 2 As shown, the main body 100 includes a connecting portion 110 , an extending portion 120 , and a flange portion 130 .

[0039] In the connection part 110, a thread 111 for connection that can be fitted with the column 11 is formed on one surface side in the front-back direction of the fixed object 20. The position of the main body 100 in the direction of the axis 13, 23 can be arbitrarily displaced according to the length of the external thread 15 of the column 11 fitting with the thread 111.

[0040] In this embodiment, the connecting portion 110 is a cylindrical member extending around the shafts 13 and 23 to surround the column 11, and the diameter of the connecting portion 110 is smaller than the diameter of the through hole 21. The difference between the diameter of the connecting portion 110 and the diameter of the through hole 21 is set so that even if the axis 23 of the through hole 21 is not overlapped with the axis 13 of the column 11, the extension portion 120 can pass through the through hole 21 to reach the other surface side of the fixed object 20 in the front and back direction. In addition, the end ( Figure 1 and Figure 2The upper end of the connecting portion 110 is open, and the front end ( Figure 1 and Figure 2 The lower end) side is closed.

[0041] The thread 111 is an internal thread formed along the inner circumference of the connection portion 110 and is formed to spirally extend from the distal end side toward the distal end side on the inner circumference of the connection portion 110. The thread 111 is formed to have the same pitch as the external thread 15 of the column 11.

[0042] The extension portion 120 extends from the connection portion 110 through the through hole 21 to a length that can reach the other surface side of the fixing object 20 in the front-back direction. The extension portion 120 is a columnar member having a diameter smaller than that of the through hole 21 .

[0043] In the extension portion 120 , in a region that reaches the other surface side of the fixing object 20 in the front-back direction and is adjacent to the through hole 21 , a male thread 121 for connection is formed along the outer peripheral surface of the region.

[0044] The external thread 121 is formed on the outer peripheral surface of the extension portion 120 from the end ( Figure 1 and Figure 2 The upper end) side toward the front end ( Figure 1 and Figure 2 The lower end) side of the outer thread 121 extends spirally, and the outer thread 121 has the same pitch as the outer thread 15 of the column 11 and the thread 111 of the connecting part 110.

[0045] In addition, a retaining piece 123 is formed at the end side of the region of the extension portion 120 that reaches the other surface side of the fixed object 20 in the front-back direction, and the retaining piece 123 retains the end side and is used to control the rotation of the extension portion 120 around the axis 13, 23. In the cross-sectional view intersecting the axis 13, 23, the retaining piece 123 has an outer shape having at least two sides opposite to each other, and is configured so that a tool such as a wrench can be fitted into the outer shape of the retaining piece 123. In the present embodiment, the outer shape of the retaining piece 123 can be a polygon such as a quadrilateral or a hexagon.

[0046] The flange portion 130 is a component extending from the connecting portion 110 and having a larger diameter than the through hole 21. When the connecting portion 110 and the column 11 are engaged, a contact surface 131 is formed on the flange portion 130, which can directly or indirectly contact one surface of the fixed object 20 in the front and back directions.

[0047] In the present embodiment, a cylindrical buffer member 25 is disposed between the flange portion 130 and the fixed object 20, and the contact surface 131 is configured to indirectly contact the fixed object 20 via the buffer member 25. Here, a washer is used as the buffer member 25.

[0048] like Figure 2 As shown, the fixing member 200 is a cylindrical member extending around the shafts 13 and 23 so as to surround a portion of the extending portion 120 located on the other surface side of the fixing object 20 in the front-back direction (a region adjacent to the through hole 21 ).

[0049] In addition, the fixing member 200 is provided with an internal thread 210 for connection along its inner circumference, and the internal thread 210 can be engaged with the external thread 121 of the extension portion 120. The internal thread 210 is formed so as to extend from the end ( Figure 1 and Figure 2 The upper end) side toward the front end ( Figure 1 and Figure 2 In addition, the internal thread 210 is formed with the same pitch as the external thread 15 of the column 11, the thread 111 of the connecting portion 110, and the external thread 121 of the extending portion 120.

[0050] In addition, the fixing component 200 is a component that is extended to have a diameter larger than the diameter of the through hole 21. When the fixing component 200 is engaged with the extension portion 120, a contact surface 220 is formed on the fixing component 200, and the contact surface 220 can directly or indirectly contact the other surface of the fixed object 20 in the front and back directions.

[0051] In the present embodiment, a cylindrical buffer member 27 is disposed between the fixing member 200 and the fixing object 20, and the contact surface 220 is configured to indirectly contact the fixing object 20 via the buffer member 27. Here, a washer is used as the buffer member 27.

[0052] In the present embodiment, a nut that can be fitted into the external thread 121 of the extension portion 120 is used as the fixing member.

[0053] (2) Modification

[0054] As mentioned above, although embodiment of the present invention is described, the present invention is not limited to the above-mentioned embodiment, and various forms can be adopted within the technical scope to which the present invention belongs.

[0055] For example, in the above-mentioned embodiment, the fixture 1 is used to fix the fixing object 20 at any position below the fixed object 10. However, the fixture 1 can fix the fixing object 20 at any position relative to the fixing object 10, and is not limited to the positional relationship between the fixing object 10 and the fixing object 20.

[0056] In the above embodiment, the following configuration is exemplified, that is, the column 11 is formed with the external thread 15, and the connecting portion 110 is formed with the internal thread as the thread 111. Figure 3 As shown, the external thread and the internal thread may be formed in the opposite configuration, that is, the internal thread 17 is formed on the column 11 , and the external thread is formed as the thread 111 on the connection portion 110 .

[0057] In addition, in the above-mentioned embodiment, the structure in which the retaining piece 123 having a polygonal outer shape is formed at a position closer to the front end side than the external thread 121 is exemplified. Figure 4 As shown, the retaining piece 123 can also be formed from the front end of the extension portion 120 toward the end, and is a recessed portion with a polygonal outer diameter in a cross-sectional view intersecting the axes 13 and 23. According to the above configuration, both the external thread 121 and the retaining piece 123 can reach the front end of the extension portion 120.

[0058] Furthermore, in the above-described embodiment, the flange portion 130 of the body 100 and the fixed object 20 are indirectly in contact with each other via the buffer member 25, and the fixing member 200 and the fixed object 20 are indirectly in contact with each other via the buffer member 27. However, one or both of the flange portion 130 of the body 100 and the fixed object 20, and the fixing member 200 and the fixed object 20 may be configured to directly contact each other without the buffer members 25, 27.

[0059] In addition, in the above-mentioned embodiment, the connection part 110 is illustrated as a cylindrical member with the front end side closed. And the region from the front end side of the connection part 110 to the front end of the extension part 120 is illustrated as a columnar member. However, the connection part 110 may be a cylindrical member extending in a manner surrounding the axis 13, 23 over the entire length of the region from the front end side of the connection part 110 to the front end of the extension part 120.

[0060] (3) Effect

[0061] In the fixing device 1 of the above-mentioned embodiment, after the connection portion 110 is fitted into the column 11, the fixing object 20 is positioned relative to the fixed object 10 by the flange portion 130 or the fixing member 200, and the fixing object 20 is clamped and fixed between the flange portion 130 and the fixing member 200. Therefore, all operations from positioning the fixing object 20 relative to the fixed object 10 to fixing the fixing object 20 can be performed from the other side of the fixing object 20 in the front-back direction.

[0062] In addition, the main body 100 can be displaced to any position in the direction of the axis 13, 23 according to the state of engagement with the thread (external thread 15) of the column 11, so the position of the fixed object 20 relative to the fixed object 10 can be arbitrarily adjusted by the position of the flange portion 130 according to the position. Here, in the state where the fixing member 200 is installed, by holding the fixing member 200 so that it does not rotate, it is possible to displace only the main body 100 relative to the column 11 (refer to Figure 5 (a) of the Regulations).

[0063] Furthermore, the fixing member 200 can be displaced to any position in the direction of the axis 13, 23 according to the state of engagement with the external thread 121 of the extension portion 120, so that the position of the fixed object 20 relative to the fixed object 10 can be arbitrarily adjusted by the fixing member 200 according to the position. Here, when the fixing member 200 is rotated, the main body 100 is held so as not to rotate, so that only the fixing member 200 can be displaced relative to the column 11 (see Figure 5 (b) of the Regulations).

[0064] Thus, according to the fixing device 1, by holding one of the main body 100 and the fixing member 200 and rotating the other, only the other can be displaced and fixed relative to the column 11. This is because each thread is formed with the same pitch, so that the positioning and fixing can be achieved through a continuous operation, thereby improving operability.

[0065] Furthermore, in the fixing tool 1 of the above-described embodiment, by using the holding piece 123 , the operation of holding the main body 100 and rotating the fixing member 200 can be efficiently performed.

Claims

1. A fixing member for positioning a plate-shaped fixing object relative to a fixed object having a threaded column in the following positional relationship and fixing the fixing object to the fixed object, wherein: The fixed object extends along a surface intersecting the axis of the column, and the positional relationship is such that the axis of the through hole penetrating the fixed object in the front and back directions of the fixed object is along the axis of the column, and the fixing member is characterized in that it has: A connecting portion, wherein a thread for connection that can be engaged with the column is formed on a surface side of the fixing object in the front-back direction; an extension portion extending from the connection portion through the through hole to a length capable of reaching the other surface side of the fixed object in the front-back direction, and having an external thread for connection formed along an outer peripheral surface of a region on the other surface side that can be reached; and A flange portion, the flange portion is a component that is extended from the connecting portion and is larger than the diameter of the through hole, and a contact surface is formed on the flange portion when the connecting portion is engaged with the column, and the contact surface can directly or indirectly contact the surface of the fixed object on one side in the front and back directions, The thread of the connecting portion and the external thread of the extending portion are both formed with the same pitch as that of the cylinder.

2. The fixing member according to claim 1, characterized in that: A fixing member is further provided, the fixing member being connectable to the extending portion on the other surface side of the fixing object in the front-back direction, The fixing component is a cylindrical component that extends around the axis of the column in a manner that surrounds a portion of the extension portion on the other side of the surface of the fixed object in the front-back direction, and an internal thread for connection is formed along the inner circumferential surface of the fixing component with the same pitch as that of the column, and the internal thread can be engaged with the external thread of the extension portion.

3. The fixing member according to claim 1 or 2, characterized in that: In the case where an external thread is formed along the outer peripheral surface of the column, The connection portion is a cylindrical member extending around the axis of the column so as to surround the column, and the thread of the connection portion is formed along the inner circumferential surface of the connection portion and is an internal thread for connection that can be fitted with the external thread of the column.

4. The fixing member according to any one of claims 1 to 3, characterized in that: A retaining piece is formed on the end side of the region of the extension portion that can reach the other surface side of the fixed object in the front-back direction, and the retaining piece retains the end side and is used to control the extension portion to rotate around the axis of the column.

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