Fixtures and Fixing Devices

Abstract

To surely prevent disengagement in a state that a fixing body is engaged with and fixed to a fixed body.SOLUTION: A fixing body F1 fixed to a base body V having a pair of opposed plate portions 43 and a pair of projecting plate portions 44 with an engagement structure, includes: a main body portion A disposed over a groove portion 45 between the pair of opposed plate portions 43 in a state of being kept into contact with surfaces of the pair of opposed plate portions 43; and an insertion portion B provided with engagement plate portions 12 engaged with the pair of projecting plate portions 44 at a tip side of a shaft portion 11. Further a pair of opposed-arranged planar portions 15 are formed on the shaft portion 11 to restrict furthermore rotation in the engagement direction from a state that the shaft portion 11 is rotated in maximum, and the fixing body F1 engaged with and fixed to the base body V includes a reverse rotation restriction screw 4 to prevent rotation in a direction reverse to the engagement direction from the engagement state.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a fixed body and a fixing device that can reliably release the engagement with a simple structure by inserting the insertion portion of the fixed body into a groove of the fixed body and rotating it in the engagement direction while the fixed body is engaged and fixed to the fixed body. [Background technology]

[0002] 2 to 5 of Patent Document 1 disclose a structure in which a mounting body 100 is mounted to a mounting target body 200 in a connected state with a plurality of bolts 110. A pair of protruding plate parts are integrally provided at a predetermined interval on the rear side of the mounting body 100 to form a positioning part 130, and a bolt 110 is arranged so as to pass through the positioning part 130 from the front side of the mounting body 100, and a rectangular plate-shaped nut 120 is screwed to the tip of the bolt 110. A protrusion 141 is protruded from both ends in one diagonal direction on the front surface of the nut 120. Two types of insertion grooves with different groove widths are formed in the mounting target body 200 in a stepped shape such that the narrow insertion groove is arranged on the front surface side, and the rectangular plate-shaped nut 120 screwed to the tip of the bolt 110 supported by the mounting body 100 is arranged in the wide insertion groove on the back side through the narrow insertion groove on the front side of the mounting target body 200.

[0003] Therefore, when bolt 110 is rotated in the above state, the nut 120 rotates (rotates together) with the bolt 110 within the wide insertion groove of the body to be attached 200 until each of the protrusions 141 on its upper surface abuts against the inner surface of the narrow insertion groove of the body to be attached 200, and then, since the nut 120 is unable to rotate, the bolt 110 continues to rotate further, and the body to be attached 200 and the attachment body 100 are connected together by being held by the head of the bolt 110 arranged on the front side of the attachment body 100 and the nut 120 arranged in the step portions of the two types of insertion grooves with different groove widths of the body to be attached 200. Furthermore, when the nut 120 is unable to rotate, both ends of the long side of the nut 120 are positioned at the step portions of two types of insertion grooves with different groove widths in the body to be attached 200, making it impossible for the nut 120 to slip out of the wide insertion groove in the body to be attached 200.

[0004] In this way, the pair of protrusions 141 provided on the nut 120 only determine the position at which the rectangular plate-shaped nut 120 can engage with the wider insertion groove at the rear of the two types of stepped insertion grooves in the mounting body 200, and do not have the function of preventing the nut 120 from disengaging from the wider insertion groove at the rear of the two types of stepped insertion grooves.

[0005] Therefore, if the screwed state between the bolt 110 and the nut 120 becomes loose, the two 110, 120 may move while still connected in the direction in which the insertion groove is formed (a direction perpendicular to the groove width direction), or the engagement state of the nut 120 may be released, causing the mounting body 100 and the mounted body 200 to be (partially) separated. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2005-106130 A Summary of the Invention [Problem to be solved by the invention]

[0007] An object of the present invention is to reliably prevent disengagement of a fixed body from a fixed body in a state where the fixed body is engaged with the fixed body. [Means for solving the problem]

[0008] The invention of claim 1 for solving the above problem is a fixed body fixed to a fixed body having a pair of opposed plate parts with a groove part formed between each opposed tip part arranged opposite to each other, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, the insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with The reverse rotation regulating portion is composed of a regulating member attachment portion formed on the main body portion, and a separate regulating member that abuts against the fixed body in a state where it is attached to the regulating member attachment portion. It is characterized by:

[0009] According to the invention of claim 1, when the insertion part of the fixed body is inserted into the groove of the fixed body and the fixed body is rotated to the maximum in the engagement direction with the shaft part as the rotation axis to the rotation position restricted by the rotation restricting part, the engagement part formed on the tip part of the shaft part maintains the state of being engaged with each of the opposing tip parts of the pair of opposing plate parts of the fixed body, and the rotation restricting part of the fixed body abuts on the fixed body, and when the fixed body is rotated in the opposite direction to the engagement direction with the fixed body engaged and fixed to the fixed body, the reverse rotation restricting part abuts on the fixed body, thereby restricting the rotation of the fixed body in the opposite direction. In this way, the rotation restricting part restricts the rotation of the fixed body in the further rotation direction beyond the maximum rotation position, and at the same time, the reverse rotation restricting part restricts the rotation in the opposite direction to the rotation direction.

[0010] As a result, by rotating the fixing body to its maximum extent with the insertion portion inserted into the groove of the fixing body, two goals are simultaneously achieved: maintaining the fixed engagement state of the fixing body with respect to the fixing body and regulating the release of said engagement. Even with long-term use, the engagement and fixation of the fixing body with respect to the fixing body will not loosen or be released, allowing for stable use over a long period of time.

[0011]

[0012] Furthermore, Claim 1 According to the invention, a separate regulating member is used as the reverse rotation regulating portion provided on the fixed body and is attached to a regulating member attachment portion formed on the main body, making it easier to design the structure of the main body.

[0013] Claim 2 The invention is as follows: 1 In the invention, the regulating member is a separate screw that is screwed into the main body portion.

[0014] Claim 2 According to the invention, a highly versatile screw is used as a restricting member for restricting rotation of the fixed body in the direction opposite to the engagement direction when the fixed body is engaged and fixed to the fixed body, so that implementation is easy.

[0015] Claim 3 The invention of claim 1 or 2 In the invention, the regulating member is adapted to enter a groove portion of the fixed body and come into contact with an opposing tip portion of one of the pair of opposing plate portions.

[0016] Claim 3 According to the invention, the groove of the fixed body into which the insertion part of the fixed body is inserted is formed between the opposing tip ends of a pair of opposing plate parts arranged opposite to each other, and when the fixed body is engaged and fixed to the fixed body, the shaft part constituting the insertion part of the fixed body is arranged close to each of the opposing tip ends. Therefore, the separate regulating member attached to the regulating member attachment part of the fixed body is most reliably designed to restrict the reverse rotation of the fixed body engaged and fixed to the fixed body by abutting the opposing tip ends formed on the fixed body.

[0017] Claim 4 The invention is as follows: 3 In the invention, the regulating member abuts against the opposing tip portion of one of the opposing plate portions, thereby urging the main body portion in which the rotation regulating portion is formed toward the other opposing plate portion.

[0018] Claim 4 According to the invention, when the separate regulating member abuts against the opposing tip of one of the opposing plate portions of the fixed body, the main body of the fixed body is pressed in a biased state toward the other opposing plate portion in comparison with the non-abutting state of the regulating member, and this state is maintained. Therefore, not only is the separate regulating member regulating the release of the engagement of the fixed body with the fixed body, but the main body of the fixed body is pressed in a biased state toward the other opposing plate portion, eliminating any "wobble" of the fixed body with respect to the fixed body, and the state of engagement and fixation of the fixed body with respect to the fixed body is made more solid.

[0019]

[0020]

[0021] Claim 5The invention is as set forth in claims 1 to 4 In any one of the above-mentioned inventions, a pair of protruding plate portions is formed at each of the opposing tip portions of the pair of opposing plate portions of the fixed body, the protruding plate portions protruding toward the rear side further than the rear surfaces of the pair of opposing plate portions, The reverse rotation regulating portion is composed of a protrusion formed on the surface facing the main body portion of the engaging portion that constitutes the insertion portion, and the protrusion moves toward the anti-groove portion by rotating the fixed body around the axis portion of the fixed body, overriding the protruding plate portion of the pair of protruding plate portions that is positioned as the destination of rotation, and engages with the protruding plate portion from the anti-groove portion side in an abutting state, thereby regulating rotation in the direction opposite to the engagement direction of the fixed body.

[0022] Claim 5 According to the invention, the reverse rotation regulating portion is composed of a protrusion formed on the surface facing the main body portion of the engagement portion that constitutes the insertion portion of the fixed body, and when the insertion portion of the fixed body is inserted into the groove portion of the fixed body and the fixed body is rotated in the engagement direction with the shaft portion as the rotation center, the protrusion moves over the protruding plate portion of the pair of protruding plate portions that is positioned as the rotation destination and moves toward the anti-groove portion side, thereby being able to engage with the protruding plate portion from the anti-groove portion side and restricting rotation in the direction opposite to the rotation direction of the fixed body.

[0023] Claim 6 The invention is A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each opposed tip portion, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, the insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with A pair of protruding plate portions are formed at the opposing tip portions of the pair of opposing plate portions of the fixed body, the protruding plate portions protruding toward the rear side further than the rear surfaces of the pair of opposing plate portions, The engagement portion is a narrow portion that is formed to have a width narrower than the groove width of the fixed body and that allows the fixed body to be inserted into the groove portion with the width direction aligned with the opposing direction of the pair of opposing plate portions; a wide portion that protrudes outward from the shaft portion with a width wider than the groove width, is formed in a direction perpendicular to the width direction of the narrow portion, and engages with the inner ends of the pair of protruding plate portions from the inner side to cooperate with the main body portion and perform the engagement function of sandwiching the pair of opposing plate portions and the pair of protruding plate portions of the fixed body, In the engaged state, the wide portion protrudes beyond the protruding plate portion in the width direction of the groove portion of the fixed body, and on the side of the wide portion facing the main body portion of the protruding portion, a protrusion-shaped reverse rotation regulating portion is formed which abuts against the surface of the protruding plate portion on the opposite side to the groove portion.

[0024] Claim 6 According to the invention, when the fixed body is inserted into the groove of the fixed body with the width direction of the narrow portion aligned with the opposing direction of the pair of opposing plates, and the fixed body is rotated in the engagement direction with the shaft as the rotation axis, the overhanging portion of the wide portion functioning as the engagement portion is arranged on the back side of the pair of opposing plates of the fixed body, straddling the pair of protruding plates, and the reverse rotation restricting portion in the form of a protrusion formed on the side of the overhanging portion of the wide portion facing the main body overcomes one of the protruding plates and is arranged on the anti-groove side, so that the reverse rotation restricting portion is engaged and locked with the surface on the anti-groove side of the one of the protruding plates. As a result, the rotation restricting portion arranged on the anti-groove side of the one of the protruding plates restricts the fixed body engaged and fixed to the fixed body from rotating in the direction opposite to the rotation direction.

[0025] Claim 7 The invention is A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each opposed tip portion, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, the insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with The reverse rotation regulating portion is characterized in that it abuts the fixed body at a position where rotation in the engagement direction is restricted, rather than an intermediate position between the position where rotation in the engagement direction is restricted by the rotation regulating portion and the position where the fixed body begins to engage with the fixed body by the main body portion and the engagement portion.

[0026] Claim 7 According to the invention, the angle at which the fixed body can rotate between the respective operating positions of the rotation regulating section and the reverse rotation regulating section of the fixed body is reduced, so that even if "wobble" occurs in the rotation direction or the opposite direction when the fixed body is engaged and fixed to the fixed body, the "wobble" is reduced, thereby stabilizing the usage state.

[0027] Claim 8 The invention is A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each opposed tip portion, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, the insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with The fixing body is characterized by having a nut holding portion capable of holding a nut, located on the rear side of a portion where the engaging portion engages with the protruding plate portion of the fixed body.

[0028] Claim 8 of According to the invention, by screwing a bolt into a nut held in a nut holding portion of a fixed body, various objects can be connected to a fixed body via the fixed body, the nut, and the bolt.

[0029] Claim 9 The invention of the present invention is a fixed body having a pair of protruding plate parts formed at the opposing tip parts of a pair of opposing plate parts, the protruding plate parts protruding further toward the rear side than the rear surfaces of the pair of opposing plate parts; Claims 1 to 8 and a fixing body according to any one of claims 1 to 5.

[0030] Claim 9 According to the invention, various objects can be fixed or connected to the fixed body via the fixing body.

[0031]

[0032] Effect of the Invention

[0033] In the present invention, when the insertion portion of the fixed body is inserted into the groove of the fixed body and the fixed body is rotated to the maximum in the engagement direction with the shaft portion as the rotation axis to the rotation position restricted by the rotation restricting portion, the engagement portion formed on the tip of the shaft portion maintains a state of being engaged with each of the opposing tip portions of the pair of opposing plate portions of the fixed body, and the rotation restricting portion of the fixed body abuts against the fixed body, and when the fixed body is rotated in the opposite direction to the engagement direction in the state where the fixed body is engaged and fixed to the fixed body, the reverse rotation restricting portion abuts against the fixed body, thereby restricting the rotation of the fixed body in the opposite direction. In this way, the rotation restricting portion restricts the rotation of the fixed body in the further rotation direction beyond the maximum rotation position, and at the same time, the reverse rotation restricting portion restricts the rotation in the opposite direction to the rotation direction. As a result, by rotating the fixing body to its maximum extent with the insertion portion inserted into the groove of the fixing body, two goals are simultaneously achieved: maintaining the fixed engagement state of the fixing body with respect to the fixing body and regulating the release of said engagement. Even with long-term use, the engagement and fixation of the fixing body with respect to the fixing body will not loosen or be released, allowing for stable use over a long period of time. Furthermore, since a separate restricting member attached to the restricting member attachment portion formed on the main body is used as the reverse rotation restricting portion provided on the fixed body, the structural design of the main body is simplified. [Brief description of the drawings]

[0034] [Figure 1] 1 is a perspective view showing a state in which a fixed body F1 is engaged and fixed to a base body V. FIG. [Diagram 2]1A is a front view of the fixed body F1 engaged and fixed to the base body V, and FIG. 1B and FIG. 1C are cross-sectional views taken along lines X1-X1 and X2-X2 in FIG. [Diagram 3] 1A is a perspective view of the state immediately before the insertion portion B of the fixed body F1 is inserted into the groove portion 45 of the base body V to engage and fix the fixed body F1 to the base body V, and FIG. [Figure 4] 13(a) and 13(b) are perspective views of a fixed body F1 engaged and fixed to a base body V, viewed from different directions. [Diagram 5] 1(a) to 1(d) are a front view, a right side view, a bottom view and a rear view of fixed body F1, respectively. [Figure 6] 6(a) to 6(c) are cross-sectional views taken along lines Y1-Y1, Y2-Y2, and Y3-Y3 in FIG. 5, respectively. [Figure 7] 1 is a cutaway perspective view mainly showing engagement surfaces 12a, 12b of an engagement plate portion 12 of a fixed body F1 and a reverse rotation restricting projection 24 formed on the engagement surface 12b. [Figure 8] 10(a) to 10(d) are diagrams showing the sequence of engaging and fixing the fixed body F1 to the base body V. [Figure 9] 13 is a perspective view of a state before a smooth tube P1 is bound and fixed to a fixed body F1, which is engaged and fixed to a base body V, by using a binding wire 51. FIG. [Figure 10] FIG. [Figure 11] 13 is a vertical cross-sectional view of a state in which a corrugated tube P2 is bound and fixed to a fixed body F1, which is engaged and fixed to a base body V, by using a bind wire 52. FIG. [Figure 12] 1A and 1B are respectively an exploded perspective view showing a state in which a nut 25 is inserted and placed in a nut placement space 28 of a fixed body F1, and a cross-sectional view showing a state in which a suspension bolt 29 is suspended from a ceiling surface. [Figure 13] 13 is a perspective view showing a state in which a fixed body F2 is engaged and fixed to a base body V. FIG. [Figure 14]13(a) and 13(b) are combined front and side views showing intermediate and completed states of engagement and fixation of the fixed body F2 to the base body V, respectively. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] The present invention will be described in more detail below with reference to several preferred embodiments. EXAMPLES

[0036] First, the fixed body F1 of the first embodiment of the present invention will be described with reference to Fig. 1 to Fig. 6. The fixed body F1 is fixed to a hollow base body V having a groove 45 formed on the front side along the longitudinal direction by an engagement structure, and is used to bind and hold pipes to the base body V via the fixed body F1, or to suspend a suspension bolt or the like from the base body V.

[0037] The base body V is made of metal and is a short member having a length of 100 to 500 mm along the direction in which the groove portion 45 is formed. As shown in Figures 1 to 3, side plate portions 42 are erected in the same direction at both ends of the width direction of the bottom plate portion 41, so that the pair of side plate portions 42 are arranged opposite each other in a form bent at a right angle to the bottom plate portion 41, and at the tips of the pair of side plate portions 42, a pair of opposing plate portions 43 are bent inward at a right angle so as to be parallel to the bottom plate portion 41, so that each opposing tip portion 43a is formed in an opposing arrangement. Furthermore, at each opposing tip portion 43a of the pair of opposing plate portions 43, each protruding plate portion 44 is formed in a form bent at a right angle toward the inside (towards the bottom plate portion 41), so that a groove portion 45 is formed continuously along the longitudinal direction between each opposing tip portion 43a of the pair of opposing plate portions 43. The width W1 of the groove 45 is a reference for determining the dimensions (lengths) of the narrow portion 22 and the wide portion 23 of the engagement plate portion 12 of the fixed body F1, which will be described later. The space formed by the bottom plate portion 41, the pair of side plate portions 42, and the pair of opposing plate portions 43 is an arrangement space portion 46 for inserting and arranging an insertion portion B, which is a part of the fixed body F1, and the depth of the arrangement space portion 46 (the height of the side plate portions 42) is determined relatively in relation to the insertion length of the insertion portion B of the fixed body F1, which will be described later. Note that the bottom plate portion 41 of the base body V has a plurality of holes of different shapes formed therein for fixing the base body V to a floor member, a ceiling member, or the like, via bolts or the like.

[0038] The fixed body F1 engaged and fixed to the base body V is made of resin, and as shown in Figs. 1 to 6, it is composed of a rectangular plate-shaped main body A arranged in contact with the front surface of a pair of opposing plate portions 43, which are the surface of the base body V, and an insertion portion B formed integrally with the back surface of the main body A and inserted into the arrangement space portion 46 through a groove portion 45 of the base body V (see Fig. 5(b)). The main body A is formed with pipe holding portions 2 with arc-shaped cross sections bulging out toward the front surface at each corner portion on the front surface side of the rectangular plate-shaped main body plate portion 1, and a pair of pipe holding portions 2 arranged along one diagonal line of the total of four pipe holding portions 2 have a rotation operation portion 3 protruding in the short side direction of the main body plate portion 1, which is used by an operator to hook the fingers of the operator to rotate the pipe holding portions 2 when engaging and fixing the fixed body F1 to the base body V. The dimension L1 in the short side direction of the main body plate 1 is slightly smaller than the width W1 of the groove 45 of the base body V, and the dimension L2 in the long side direction is much larger than the width W1 of the groove 45 and slightly smaller than the overall width W2 of the base body V. One of the two pipe holding parts 2 arranged along the other diagonal line of the four pipe holding parts 2 formed on the main body plate 1 has a screw attachment part 5 protruding in the short side direction of the main body plate 1 for attaching a reverse rotation prevention screw 4 that prevents the fixed body F1 engaged and fixed to the base body V from rotating in the reverse direction. A circular screw head insertion hole 5a is formed on the surface of the screw attachment part 5, into which the head 4a of the reverse rotation prevention screw 4 is inserted, and a screw pilot hole 5b is formed perpendicular to the main body plate 1 in the center of the screw head insertion hole 5a, into which the shaft 4b of the reverse rotation prevention screw 4 is inserted while rotating and screwed. As described below, when the reverse rotation control screw 4 is screwed into the screw pilot hole 5b, as shown in Figure 2(b), the shank 4b of the reverse rotation control screw 4 is pressed against the opposing tip portion 43a of the base body V, causing the entire fixed body F1 to move slightly in the groove width direction of the groove portion 45 of the base body V, and the opposite peripheral surface of the reverse rotation control screw 4 at the shank 11 is pressed against the opposing plate portion 43 on the opposing side (opposite side). In this state, only a portion of the reverse rotation control screw 4 in the circumferential direction is screwed into the screw pilot hole 5b, forming a female thread portion itself, and the shank of the reverse rotation control screw 4 is screwed in with its shank inclined by an angle (α).In addition, the screw pilot hole 5b can also be formed in advance at an angle (α) so that the shaft portion 11 of the fixed body F1 is pressed against the opposing plate portion 43 on the opposing side (opposite side) described above.

[0039] At one end along the long side direction of the main body plate part 1 of the fixed body F1, and at the center of the short side direction, a rectangular plate-shaped restricting plate part 6 is provided protruding in the short side direction to form a restricting protrusion 7 that prevents the corrugated tube P2 from shifting in its longitudinal direction (axial direction) when a part of the corrugated tube P2 is held by the main body plate part 1 of the fixed body F1, and the restricting plate part 6 is provided with a linear restricting protrusion 7 that is inserted into the groove part P2a of the corrugated tube P2 partially supported by the main body plate part 1 along the short side direction of the main body plate part 1. A V-shaped break groove 8 is provided in the connection part between the main body plate part 1 and the restricting plate part 6 except for both ends, and a large difference is provided in the length of the connection part along the short side direction of both ends where the break groove 8 is not provided. The reason is that when supporting the corrugated tube P2, the regulating plate portion 6 needs to ensure its unity with the main body plate portion 1, and when supporting the smooth tube P1, the regulating protrusion 7 becomes an obstacle, so the regulating plate portion 6 needs to be removed. The reason why the lengths of the first and second connection portions 9a, 9b where the main body plate portion 1 and the regulating plate portion 6 are integrated at both ends of the breaking groove 8 are made different is as follows. That is, when the corrugated tube P2 is partially supported by the fixed body F1, the corrugated tube P2 is partially supported by the regulating plate portion 6 with the regulating protrusion 7 inserted into the groove portion P2a of the corrugated tube P2, so that the integral strength (connection strength) between the main body plate portion 1 and the regulating plate portion 6 needs to be increased. Therefore, the length (wall thickness) of the first connection portion 9a in the short side direction is made long (large) and the length of the second connection portion 9b is made relatively short compared to the first connection portion 9a in order to make it easy to break off by hand. Therefore, when breaking off the regulating plate portion 6 from the main body plate portion 1, the first connection portion 9a on the longer side of the part where the main body plate portion 1 and the regulating plate portion 6 are integrated is cut using a tool such as pliers, and the second connection portion 9b on the shorter side is broken off by hand, thereby removing the regulating plate portion 6 from the main body plate portion 1.

[0040] As shown in Figure 5 (b), when the fixed body F1 is engaged and fixed to the base body V, the insertion portion B of the fixed body F1 consists of an axis portion 11 which is integrally formed on the back surface of the main body plate portion 1 and is arranged between a pair of protruding plate portions 44 of the base body V, and an engagement plate portion 12 which is integrally formed on the tip portion (rear end portion) of the axis portion 11 and engages with the inner end surfaces 44a of the pair of protruding plate portions 44 of the base body V from the rear side, and each of the three integrally formed parts of the main body plate portion 1, axis portion 11 and engagement plate portion 12 has a circular cross-sectional through hole 13 formed therein for inserting bolts or the like. 6, the shaft portion 11 has an irregular cylindrical shape because the through hole 13 is formed in the center thereof, and its cross-sectional shape is point-symmetrical about the axis C of the through hole 13. The shaft portion 11 includes a partial cylindrical portion 14 having the axis C of the through hole 13 as its axis, and a pair of opposed planar portions 15 that are connected to the outer peripheral surface of the partial cylindrical portion 14 at an obtuse angle and are opposed to each other with a gap between them on the inside of each protruding plate portion 44 of the base body V when the fixing member F1 is engaged and fixed to the base body V. The dimension of the irregular cylindrical shaft portion 11 along the short side direction of the main body plate portion 1 is the same as the dimension L1 along the short side direction of the main body plate portion 1, and the dimension L3 of the shaft portion 11 along the long side direction of the main body plate portion 1 is slightly shorter than the width W1 of the groove portion 45 of the base body V. That is, when the fixed body F1 is rotated in the engagement direction to engage with the base body V, the pair of opposed flat portions 15 formed in parallel to each other on the outer circumferential surface of the shaft portion 11 are arranged in parallel to the protruding plate portion 44 of the base body V at the time of completion of the engagement, as shown in FIG. 8(d), and function as a "rotation restricting portion" that restricts further rotation of the fixed body F1 in the engagement direction. The connection portion between the outer circumferential surface of the partial cylindrical portion 14 and the pair of opposed flat portions 15 is formed in a stepped shape, and a pressure portion 16 is formed that can sensuously inform the operator rotating the fixed body F1 that the engagement is approaching completion by abutting against the inner surfaces of the pair of protruding plate portions 44 of the base body V in a pressurized state during the rotation of the fixed body F1 to engage and fix it to the base body V. In FIG. 6(b), 17 indicates a recessed portion formed on the shaft portion 11.

[0041] The engaging plate 12 formed integrally with the tip (rear end) of the shaft 11 is an irregular rectangular plate having a pair of interference avoidance portions 21 formed by largely obliquely chamfering each end along one diagonal direction of the rectangle in order to avoid interference with the pair of opposing plate portions 43 of the base body V and facilitate insertion when the fixed body F1 is inserted into the base body V, as shown in Figs. 4 to 7. Therefore, even if the wide portion 23 of the engaging plate 12 of the fixed body F1 is slightly inclined without completely matching it with the groove portion 45 of the base body V, the engaging plate 12 can be inserted into the groove portion 45, making the work easier. The surfaces of the engaging plate 12 on both sides of the shaft 11 and located at both ends of the long side direction of the main body plate 1 that face the main body plate 1 are a pair of engaging surfaces 12a and an engaging guide surface 12b that abut or approach the inner end surfaces 44a of the pair of protruding plate portions 44 of the base body V. 5(b), (c) and 7, the engagement surface 12a and the engagement guide surface 12b are continuous, and the length of the engagement surface 12a along the short side direction of the engagement plate portion 12 is "K", and the engagement surface 12a on which the reverse rotation restricting protrusion 24 is formed is formed parallel to the main body plate portion 1, but the portion of the engagement surface 12a where the interference avoidance portion 21 is formed and has a central angle β of approximately 90° about the axis C of the through hole 13 is connected to the engagement surface 12a to form the engagement guide surface 12b. The engagement guide surface 12b is formed in a slightly tapered shape along the circumferential direction about the axis C of the through hole 13 so that the distance between the engagement surface 12b and the main body plate portion 1 becomes wider as the engagement surface 12b becomes farther from the engagement surface 12a. By providing the engagement guide surface 12b and the interference avoidance portion 21 in the form of a tapered surface on the engagement plate portion 12, when the fixed body F1 is rotated with the insertion portion B inserted into the groove portion 45 of the base body V and the fixed body F1 is engaged and fixed to the base body V, the rotation operation of the fixed body F1 can be easily performed from just before the engagement of the engagement plate portion 12 to when the engagement is completed.

[0042] Each short side and each long side of the engagement plate portion 12 respectively forms a narrow width portion 22 and a wide width portion 23, and the short side portion which is the narrow width portion 22 is arranged parallel to the opposing planar portion 15 of the shaft portion 11. On the inner surface of the engagement plate portion 12 facing the main body plate portion 1, at each end portion along a diagonal direction different from the diagonal direction along which the pair of interference avoidance portions 21 are formed, there is provided a reverse rotation restricting protrusion 24 which, when the fixed body F1 is engaged and fixed to the base body V, passes over the pair of protruding plate portions 44 of the base body V and is arranged on the outer side (opposite the groove portion side) of the pair of protruding plate portions 44, and restricts reverse rotation of the fixed body F1 engaged and fixed to the base body V. The dimension of the engagement plate 12 along the short side of the main body plate 1 is the same as the dimension L1 along the short side of the main body plate 1, and the dimension L4 along the long side is larger than the dimension of each outer surface (the surface on the side opposite the groove 45) of the pair of protruding plate parts 44 of the base body V so as to be engageable with the pair of protruding plate parts 44. A pair of nut holding pieces 26 for enabling a nut 25 to be placed on the back surface of the engagement plate 12 are integrally formed facing each other along the long side of the main body plate 1, and a side opening 27 formed between the pair of nut holding pieces 26 allows the placement of a bind wire 51 (see Figs. 4(b) and 10) for binding and fixing the pipes placed on the main body plate 1 of the fixed body F1 to the fixed body F1. The space formed by the pair of nut retaining pieces 26 is a nut arrangement space 28 in which the nut 25 is arranged, and on the inner surface of each nut retaining piece 26, a protrusion 26a is provided parallel to the axis C of the through hole 13 to maintain the nut 25 in a pressed-in state when a hanging bolt 29 or the like described below is screwed into the nut 25.

[0043] Next, referring to FIG. 8, the action of engaging and fixing the fixed body F1 to the base body V will be described. First, as shown in FIG. 8(a), the long side direction of the main body plate portion 1 of the fixed body F1 is aligned with the formation direction of the groove portion 45 of the base body V, and the entire insertion portion B of the fixed body F1 is inserted into the groove portion 45, so that only the main body portion A is disposed outside the base body V. In this state, when the fixed body F1 is rotated clockwise around the axis C of the through hole 13, as shown in FIG. 8(b), the pair of pressure portions 16 formed on the shaft portion 11 are pressed against the respective outer surfaces (opposing side surfaces) of the pair of protruding plate portions 44 of the base body V, generating a large rotation resistance. In this state, the respective reverse rotation restricting projections 24 formed on the respective engagement surfaces 12a of the engagement plate portion 12 are close to the respective outer surfaces (opposing side surfaces) of the pair of protruding plate portions 44 of the base body V.

[0044] When the fixed body F1 is further rotated slightly in the same direction from the state shown in Figure 8(b), the pressure resistance of the pair of pressure sections 16 against the pair of protruding plate sections 44 suddenly decreases, as shown in Figure 8(c), and the pair of reverse rotation regulating protrusions 24 formed on the engaging plate section 12 abut against the opposing tip ends 43a of each protruding plate section 44, as shown in Figure 8(d), the pair of reverse rotation regulating protrusions 24 climb over each protruding plate section 44 and are positioned inside (opposite the groove section side) of each protruding plate section 44, and the engaging plate section 12 of the fixed body F1 is positioned so that each engaging surface 12a faces the inner end surface 44a of each protruding plate section 44, and the engaging plate section 12 of the fixed body F1 is engaged with the pair of protruding plate sections 44 of the base body V. As a result, the opposing planar portions 15 of the shaft portion 11 of the fixed body F1 are arranged parallel to and adjacent to the inner surfaces of the protruding plate portions 44 of the base body V, thereby restricting further rotation of the fixed body F1 in the rotation direction. In addition, the reverse rotation restricting protrusions 24 are arranged on the inner side (opposite groove side) of each protruding plate portion 44, and the engaging plate portion 12 is engaged with each protruding plate portion 44 of the base body V, and the wide portion 23 of the engaging plate portion 12 is arranged in the width direction of the groove portion 45 of the base body V, making it impossible for the fixed body F1 to slip out of the base body V. In addition, when the fixed body F1 is engaged and fixed to the base body V, the pair of reverse rotation restricting protrusions 24 are arranged adjacent to the outer surfaces (side surfaces on the opposite groove side) of the pair of protruding plate portions 44 of the base body V, so that not only is the reverse rotation of the fixed body F1 restricted, but the movement of the fixed body F1 in the longitudinal direction of the base body V (the direction in which the groove portion 45 is formed) can also be restricted by friction due to sliding contact.

[0045] Furthermore, the pair of pressure members 16 formed on the shaft portion 11 are pressed against the respective outer surfaces (opposing surfaces) of the pair of protruding plate portions 44 of the base body V, and then the fixed body F1 is engaged and fixed to the base body V by rotating the fixed body F1 clockwise by a small angle after a large rotation resistance is generated, so that the operator can intuitively know that the engagement and fixing of the fixed body F1 to the base body V is about to be completed due to the generation of the large rotation resistance, and that the engagement and fixing will be completed with the remaining small rotation. Therefore, the operator can reduce the rotation force in the engagement direction by sensing the large rotation resistance, and the excessive rotation of the fixed body F1 can be prevented in advance, and partial damage to the fixed body F1 caused by rotating the fixed body F1 with an excessive rotation force until the engagement and fixing is completed can also be prevented.

[0046] 1 and 2, when the shaft 4b of the reverse rotation restricting screw 4 is screwed into the screw pilot hole 5b formed in the screw attachment portion 5 of the main body plate portion 1 of the fixed body F1, the shaft 4b of the reverse rotation restricting screw 4 is screwed into the screw pilot hole 5b in contact with the intersection with the protruding plate portion 44 formed on one of the opposing plate portions 43 of the base body V, and in a plane perpendicular to the main body plate portion 1 along the width direction of the groove portion 45 of the base body V, at an angle (α) (see FIG. 2(b)) with respect to the plate surface of the main body plate portion 1. As a result, the fixed body F1, which is engaged and fixed to the base body V so as not to be removed, is restricted from rotating counterclockwise with respect to the base body V, and the fixed body F1 is prevented from being removed from the base body V or from loosening its engaged state during use. Furthermore, when the fixed body F1 engaged and fixed to the base body V is slightly moved in its width direction relative to the base body V, the side of the shaft portion 11 of the fixed body F1 opposite to the side where the reverse rotation prevention screw 4 is arranged is pressed against the inner surface of the protruding plate portion 44 opposite to the side where the reverse rotation prevention screw 4 is arranged. Not only is reverse rotation of the fixed body F1 engaged and fixed to the base body V prevented by the reverse rotation prevention screw 4, but the pressing force ensures that the fixed body F1 is engaged and fixed to the base body V without any "wobble", thereby increasing the strength of the engagement and fixation.

[0047] The fixed body F1 engaged and fixed to the base body V so as not to be rotatable in reverse can be used in various ways as shown below. The base body V is fixed to various fixing members 53 such as floor members and ceiling members using bolts depending on the usage of the fixed body F1. For example, the use example shown in Figs. 9 and 10 is an example in which a smooth tube P1 is bound and fixed to the fixed body F1 using a binding wire 51. When binding and fixing the smooth tube P1 to the fixed body F1, the restricting protrusion 7 for preventing the corrugated tube P2 from shifting in its own longitudinal direction becomes an obstacle, so the restricting plate portion 6 is removed before use. The restricting plate portion 6 is removed by cutting the first connecting portion 9a, which is long along the short side direction of the main body plate portion 1 of the fixed body F1 and has a large integral strength with the restricting plate portion 6, using a tool such as nippers, and then breaking off the restricting plate portion 6 by hand at the breaking groove 8. The second connecting portion 9b can be broken off by hand because it has a small integral strength.

[0048] Thereafter, as shown in FIG. 4(b), the smooth tube P1 held by the multiple tube holding portions 2 provided on the main body portion A of the fixed body F1 is bound by a binding wire 51 passed through a pair of side openings 27 formed between a pair of nut holding pieces 26 of the fixed body F1 engaged and fixed to the base body V.

[0049] 11 is an example in which a corrugated tube P2 is bound and fixed to a fixed body F1 engaged and fixed to a base body V using a binding wire 52. When binding and fixing a corrugated tube P2 to a fixed body F1, the restricting protrusion 7 is necessary for the above-mentioned reasons, so the restricting plate portion 6 is left as it is. With the corrugated tube P2 held by each pipe holding portion 2 of the main body plate portion 1 of the fixed body F1, the restricting protrusion 7 provided on the restricting plate portion 6 is inserted into the groove portion P2a of the corrugated tube P2, whereby the corrugated tube P2 is bound and fixed to the fixed body F1 via the binding wire 52 in a state in which the corrugated tube P2 is prevented from shifting in its longitudinal direction.

[0050] 12 is an example in which the suspension bolt 29 is suspended from a fixed member 53 including a ceiling surface. A base body V is fixed to the fixed member 53, and a fixed body F1 having a nut 25 held in a nut arrangement space 28 is engaged and fixed to the base body V. Thus, when the tip of the suspension bolt 29 is inserted through the through hole 13 of the fixed body F1 from the side of the main body plate 1 and screwed into the nut 25 held in the nut arrangement space 28, the suspension bolt 29 is suspended from the fixed member 53 via the fixed body F1 and the base body V. In this example, the tip of the suspension bolt 29 is abutted against the bottom plate portion 41 of the base body V. EXAMPLES

[0051] Next, a fixed body F2 according to a second embodiment of the present invention will be described with reference to Figures 13 and 14. The fixed body F2 differs from the fixed body F1 of the first embodiment in that it uses an elastic piece 31 integrally provided on the main body A as a reverse rotation restricting part that restricts reverse rotation of the fixed body F2 engaged and fixed to the base body V. The remaining parts of the fixed body F2 are the same as those of the fixed body F1, and therefore only the elastic piece 31 will be described. An elastic piece attachment part 32 having an inverted L-shape in front view is integrally formed on the rotating operation part adjacent to the restricting plate part 6 on the main body plate part 1 of the fixed body F2 so as to be disposed to the side of the restricting plate part 6, and the elastic piece attachment part 32 is composed of an upright plate part 32a formed in the long side direction of the main body plate part 1 and an elastic piece attachment plate part 32b formed at the tip part (free end part) of the upright plate part 32a in the short side direction of the main body plate part 1, and the elastic piece 31 having a shape obtained by inverting an L-shape in a left side view is integrally formed on the elastic piece attachment plate part 32b toward the rotating operation part 3. The elastic piece 31 is composed of an elastic plate part 31a elastically deformable in the front and back directions of the base body V, and an abutting plate part 31b integrally formed at the tip part (free end part) of the elastic plate part 31a toward the back side of the fixed body F2 and abutting on the outer surface of the side plate part 42 of the base body V.

[0052] To engage and fix the fixed body F2 to the base body V, as shown in Figure 14(a), the insertion portion B of the fixed body F2 is inserted into the groove portion 45 of the base body V, and the fixed body F2 is rotated in the engagement direction, that is, clockwise, so that the abutment plate portion 31b constituting the elastic piece 31 abuts against the front surface of the protruding plate portion 44 of the base body V, and the entire elastic piece 31 is elastically deformed toward the front side of the base body V. When the fixed body F2 is rotated approximately 90° and engaged and fixed to the base body V, the elastic piece 31 that was elastically deformed toward the front side is deformed toward the back side of the base body V by its own elastic restoring force and restored to its original shape, and as shown in Figures 13 and 14(b), the abutment plate portion 31b of the elastic piece 31 abuts against the outer surface of the side plate portion 42 of the base body V. As a result, the fixed body F2 engaged and fixed to the base body V is restricted from rotating in the counterclockwise direction, and the engagement and fixation is not released during use. In addition, due to the sliding resistance of the abutment plate portion 31b of the elastic piece 31 against the outer surface of the side plate portion 42 of the base body V, the fixed body F2 does not move in the direction in which the groove portion 45 of the base body V is formed.

[0053] Furthermore, if for some reason it becomes necessary to remove the fixed body F2 from the base body V, the back portion of the elastic piece 31 is pressed against the front surface of the base body V to release the abutment of the abutment plate portion 31b of the elastic piece 31 against the outer surface of the side plate portion 42 of the base body V, and then the fixed body F2 is rotated counterclockwise. [Explanation of symbols]

[0054] A: Main body B: Insertion section F1,F2:Fixed body V: Base body (fixed body) 4: Reverse rotation control screw (reverse rotation control part) 11: Shaft 12: Engagement plate portion (engagement portion) 15: Planar portion facing the shaft portion (rotation restriction portion) 22: Narrow width portion of engagement plate 23: Wide portion of engagement plate 25: Nut 26: Nut holding piece (nut holding part) 31: Elastic piece (reverse rotation restricting part) 43: Opposing plate part 43a: Opposing tip 44:Protruding plate part 45: Groove

Claims

1. A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each opposed tip portion, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, The insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with A fixed body characterized in that the reverse rotation regulating portion comprises a regulating member attachment portion formed on the main body portion and a separate regulating member that abuts against the fixed body when attached to the regulating member attachment portion.

2. 2. The stationary body according to claim 1, wherein the restricting member is a separate screw that is screwed into the main body portion.

3. 3. The fixed body according to claim 1, wherein the regulating member is fitted into a groove of the fixed body and abuts against an opposing tip portion of one of the pair of opposing plate portions.

4. The fixed body according to claim 3, characterized in that the regulating member abuts against the opposing tip portion of one of the opposing plate portions, thereby urging the main body portion on which the rotation regulating portion is formed toward the other opposing plate portion.

5. A pair of protruding plate portions are formed at the opposing tip portions of the pair of opposing plate portions of the fixed body, the protruding plate portions protruding toward the rear side further than the rear surfaces of the pair of opposing plate portions, The reverse rotation regulating portion is composed of a protrusion formed on a surface facing the main body portion in the engaging portion that constitutes the insertion portion, and the protrusion moves toward the anti-groove portion by rotating the fixed body around the axis portion of the fixed body, overriding the protruding plate portion of the pair of protruding plate portions that is positioned as the destination of rotation, and engages with the protruding plate portion from the anti-groove portion side, thereby regulating rotation in the direction opposite to the engagement direction of the fixed body.

6. A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each of opposed tip portions arranged opposite to each other, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, The insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with A pair of protruding plate portions are formed at the opposing tip portions of the pair of opposing plate portions of the fixed body, the protruding plate portions protruding toward the rear side further than the rear surfaces of the pair of opposing plate portions, The engagement portion is a narrow portion that is formed to have a width narrower than the groove width of the fixed body and that allows the fixed body to be inserted into the groove portion with the width direction aligned with the opposing direction of the pair of opposing plate portions; a wide portion that protrudes outward from the shaft portion with a width wider than the groove width, is formed in a direction perpendicular to the width direction of the narrow portion, and engages with the inner ends of the pair of protruding plate portions from the inner side to cooperate with the main body portion and perform the engagement function of sandwiching the pair of opposing plate portions and the pair of protruding plate portions of the fixed body, In the engaged state, the wide portion protrudes beyond the protruding plate portion in the width direction of the groove portion of the fixed body, and the side of the wide portion facing the main body portion of the protruding portion is formed with the reverse rotation regulating portion in the form of a protrusion that abuts against the surface of the protruding plate portion on the opposite side to the groove portion.

7. A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each of opposed tip portions arranged opposite to each other, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, The insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with The fixed body is characterized in that the reverse rotation regulating portion abuts against the fixed body at a position where rotation in the engagement direction is restricted, which is closer to the intermediate position between the position where rotation in the engagement direction is restricted by the rotation regulating portion and the position where the fixed body begins to engage with the fixed body by the main body portion and the engagement portion.

8. A fixed body fixed to a fixed body having a pair of opposed plate portions with a groove portion formed between each of opposed tip portions arranged opposite to each other, The fixed body is a main body portion disposed on a surface side of the fixed body where the groove portion is open and disposed in contact with the surfaces of the pair of opposed plate portions across the groove portion; an insertion portion having a shaft portion that protrudes from a rear surface of the main body portion and is inserted into the fixed body through the groove portion, and an engagement portion that is formed on a tip side of the shaft portion and is engaged with each of the opposed tip portions of the pair of opposed plate portions, The insertion portion is inserted into the groove portion of the fixed body from the engagement portion on the tip side, and the shaft portion is rotated in an engagement direction about a rotation axis to engage the engagement portion with the back sides of the pair of opposing plate portions, whereby the pair of opposing plate portions can be sandwiched in the front-back direction between the engagement portion and the main body portion, and the engagement can be released by rotating the shaft portion in a direction opposite to the rotation direction, Furthermore, the fixed body is a rotation restricting portion that comes into contact with the fixed body so as to restrict further rotation in the engagement direction from a state in which the shaft portion is rotated to a maximum extent and the fixing body is engaged with the fixed body by the main body portion and the engaging portion; a reverse rotation restricting portion that comes into contact with the fixed body so as to restrict rotation from the engaged state in a direction opposite to the engagement direction about the shaft portion as a rotation axis; Equipped with The fixed body is characterized in that the fixed body has a nut holding portion capable of holding a nut, located behind the portion where the engaging portion engages with the protruding plate portion of the fixed body.

9. a fixed body in which a pair of protruding plate portions are formed at opposing tip portions of a pair of opposing plate portions, the protruding plate portions protruding toward the rear side beyond the rear surfaces of the pair of opposing plate portions; A fixed body according to any one of claims 1 to 8, A fixation device comprising:

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