JP4909338B2 - Structure fixing device and contact member for fixing device - Google Patents

Description

  The present invention relates to a structural material fixing device for connecting and fixing two structural materials using engagement grooves formed on their side surfaces, and an abutting member used therefor.

  In general, a structural material fixed by this type of fixing device has an engaging groove extending in the longitudinal direction on at least one side surface, and both side wall surfaces of the engaging groove are in the groove width direction so as to approach each other. The protrusion part which protrudes in is formed. And when connecting and fixing two structural materials, the end surface of the other structural material is abutted against the side surface of one structural material. In this case, the two structural members are abutted so that the side surfaces where the engagement grooves are formed intersect each other.

  The fixing device has a contact member and first and second engaging members. The contact member is abutted against each side surface of the pair of structural members. The first and second engaging members are disposed between the contact member and the pair of structural members so as to be movable in the groove width direction of the engaging grooves. First and second engaging portions are formed in the respective portions adjacent to the pair of structural members of the first engaging member and the respective portions adjacent to the pair of structural members of the second engaging member. When the first and second engaging portions are moved closer to each other beyond a predetermined intermediate position, the first and second engaging portions can be inserted into the engaging groove through the two protruding portions. After the first and second engaging portions are inserted into the engaging grooves, the first and second engaging grooves are moved apart beyond the intermediate position. Then, the first and second engaging portions engage with the projecting portion, and cannot escape from the engaging groove. Thereafter, when the bolts that pass through the contact portions and are screwed into the nuts provided on the first and second engagement members are tightened, the first and second engagement portions of the first and second engagement members are respectively While abutting against the protruding portion, the abutting member is abutted against one side surface of the pair of structural members. Thereby, a pair of structural material is connected and fixed.

  By the way, during the fixing operation of the pair of structural members, if a force that causes them to approach each other acts on the first and second engaging members, the first and second engaging members move closer to each other beyond the insertion position. The first and second engaging portions may come out of the engaging groove.

  In order to prevent such a problem, in the fixing device described in Patent Document 1 below, a blocking plate portion is formed on the contact member. The blocking plate portion is inserted between the first and second engaging members, maintains the first and second engaging members at positions spaced from the intermediate position, and the first and second engaging portions are engaged grooves. Prevent from escaping.

JP 2005-291362 A

  However, in the fixing device described in the above publication, the blocking plate portion is disposed so as to abut against an end portion of the first and second engaging members that is largely separated from the first and second engaging portions. For this reason, the blocking plate portion can prevent the end portions of the first and second engaging members spaced apart from the first and second engaging portions from moving closer than the intermediate position. The first and second engaging portions could hardly move beyond the intermediate position. For this reason, the 1st and 2nd engaging part of the 1st engaging member and the 1st and 2nd engaging part of the 2nd engaging member approach and move beyond an intermediate position, and the 1st and 2nd The problem that the engaging portion escapes from the engaging groove cannot be reliably prevented.

In order to solve the above problem, according to a first aspect of the present invention, an engagement groove is formed on one side surface, and protrusions protruding so as to approach each other on both side wall surfaces of the engagement groove are respectively provided. In order to fix the pair of formed structural materials, the width of the engagement groove between the contact member abutted against one side surface of the pair of structural materials and the contact member and the pair of structural materials First and second engaging members which are arranged so as to be close to and away from each other in the direction and in which the first and second engaging portions are formed in the respective portions adjacent to the pair of structural members, and the first and second engaging members. A female screw member that is provided on the two engaging members so as not to move in a direction away from the one side surface of the pair of structural members; and a male screw member that passes through the contact member and is screwed to the female screw member. The first and second engaging portions of the first engaging member and the second engaging When the first and second engaging portions of the material are displaced close to each other beyond a predetermined intermediate position, the first and second engaging portions pass between the protrusions formed on both side wall surfaces of the engaging groove and enter the engaging groove. In the fixing device of the structural material that becomes insertable and is displaced from each other beyond the intermediate position, and becomes unable to escape from the engagement groove by engaging the protrusion, the contact member includes: A distal end portion protrudes toward the one structural material side from the abutting portion of the abutting member with respect to one structural material of the pair of structural materials, and is positioned in the engaging groove of the one structural material . One blocking portion and a tip portion project toward the other structural material from the abutting portion of the abutting member with respect to the other structural material of the pair of structural materials, and in the engagement groove of the other structural material each second blocking portion located on the contact portion And it is formed integrally, the first blocking portion, by a tip portion positioned in the engagement groove enters between both the first engagement portion of the first and second engagement members, both the first engagement The joint portion is prevented from approaching and moving beyond the intermediate position, and the second prevention portion is configured such that the tip portion located in the engagement groove has the second engagement of the first and second engagement members. By entering between the parts, both the second engaging parts are prevented from approaching and moving beyond the intermediate position.
In order to solve the above-described problem, the second aspect of the present invention is such that an engagement groove is formed on one side surface, and the protrusions protruding so as to approach each other on both side walls facing each other of the engagement groove respectively. In order to fix the pair of formed structural materials, the width of the engagement groove between the contact member abutted against one side surface of the pair of structural materials and the contact member and the pair of structural materials First and second engaging portions that are arranged so as to be able to move toward and away from each other in the direction and have proximity portions that are closer to each other in the width direction of the engagement groove than other portions in the respective portions close to the pair of structural members The first and second engaging members formed on the first and second engaging members, the female screw members provided on the first and second engaging members so as not to move away from the one side surface of the pair of structural members, and the contact A male screw member that penetrates the contact member and is screwed into the female screw member. The first and second engagement portions of the first engagement member and the first and second engagement portions of the second engagement member are moved closer to each other beyond a predetermined intermediate position. , It can be inserted into the engagement groove through the protrusions formed on both side wall surfaces of the engagement groove, and engages with the protrusions when they are displaced apart from each other beyond the intermediate position. In the fixing device for a structural material that cannot be escaped from the engagement groove, the contact member is formed with first and second blocking portions integrally with the contact member, and the first blocking portion is The first end of the first and second engaging members protrudes toward the one structural material side from the abutting portion of the abutting member with respect to one structural material of the pair of structural materials . By entering between the adjacent portions of the engaging portion, both first engaging portions are It prevents the approaching displacing beyond the location, the second blocking portion, the other of said contact structure material of the other than abutting portion of the member to the structural member of its distal end portion the pair of structural members The second engaging portion is prevented from approachingly moving beyond the intermediate position by projecting toward the first portion and entering between the adjacent portions of the second engaging portions of the first and second engaging members. It is characterized by doing.
In the first and second aspects of the present invention, the contact member in the width direction of the engagement groove is inserted into the contact member between the protrusions of the engagement grooves of the pair of structural members. A pair of positioning projections for positioning are formed, one positioning projection of the pair of positioning projections is coupled to one end of the first blocking portion, and the other positioning projection of the pair of positioning projections is the above It is desirable to be connected to one end of the second blocking part.
In addition, the contact member is formed with a pair of upper blocking plates that prevent the first and second engaging members from moving toward each other by entering between the first and second engaging members. One upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the first blocking portion, and the other upper blocking plate portion of the pair of upper blocking plate portions is the above It is desirable to be connected to the other end of the second blocking part.
In order to solve the above-mentioned problem, the third aspect of the present invention is such that an engagement groove is formed on one side surface, and the protrusions protruding so as to approach each other on the opposite side walls of the engagement groove are respectively provided. A structural material fixing device that fixes a pair of formed structural materials, the contact member being abutted against one side surface of the pair of structural materials, and between the contact member and the pair of structural materials First and second engaging members, which are arranged so as to be able to approach and move apart from each other in the width direction of the engaging groove, and in which respective first and second engaging portions are formed in the respective portions adjacent to the pair of structural members; A female screw member that is immovably provided in the first and second engaging members in a direction away from the one side surface of the pair of structural members, and is screwed into the female screw member through the contact member. And the first engagement member and the second engagement member of the first engagement member. And the first engagement portion and the second engagement portion of the second engagement member pass through between the protrusions formed on both side wall surfaces of the engagement groove when the first engagement portion and the second engagement portion of the second engagement member are displaced toward each other beyond a predetermined intermediate position. And can be inserted into the engaging groove, and when it is displaced away from each other beyond the intermediate position, it is used in a fixing device for a structural material that cannot be removed from the engaging groove by engaging with the protruding portion. In the abutting member, the abutting member has a distal end projecting toward the one structural material side of the abutting portion of the abutting member with respect to one structural material of the pair of structural materials. A first blocking portion located in the engagement groove of the one structural material, and a tip portion of the other structural material than the abutting portion of the contact member with respect to the other structural material of the pair of structural materials projects toward to the other of the engaging groove The second blocking part is located are respectively formed integrally with the abutting member, said first blocking portion, both the first tip portion is the first and second engagement member positioned the engaging groove By entering between the engaging portions, both the first engaging portions are prevented from approaching and moving beyond the intermediate position, and the second blocking portion has a tip portion located in the engaging groove in the first position. By entering between the second engaging portions of the first and second engaging members, the second engaging portions are prevented from approaching and moving beyond the intermediate position.
In order to solve the above problem, according to a fourth aspect of the present invention, an engagement groove is formed on one side surface, and protrusions protruding so as to approach the opposite side wall surfaces of the engagement groove are respectively provided. A structural material fixing device that fixes a pair of formed structural materials, the contact member being abutted against one side surface of the pair of structural materials, and between the contact member and the pair of structural materials A first portion which is disposed so as to be able to approach and move away from each other in the width direction of the engagement groove and has a proximity portion closer to each other in the width direction of the engagement groove than each other portion in each portion close to the pair of structural members . And the first and second engaging members formed with the second engaging portion, and the first and second engaging members are provided immovably in a direction away from the one side surface of the pair of structural members. Threaded into the female screw member through the female screw member and the contact member A male screw member, and the first and second engagement portions of the first engagement member and the first and second engagement portions of the second engagement member cross each other beyond a predetermined intermediate position. When being displaced closer, it can be inserted into the engagement groove through the protrusions formed on both side wall surfaces of the engagement groove, and when being displaced apart from each other beyond the intermediate position, the protrusion In the contact member used in the structural member fixing device that cannot be removed from the engagement groove by engaging with the contact member, the contact member includes a first and a second blocking portion respectively connected to the contact member. The first blocking portion is integrally formed, and a tip portion of the first blocking portion projects from the abutting portion of the abutting member to one structural material of the pair of structural materials toward the one structural material side . Between the adjacent portions of the first engaging portions of the first and second engaging members. By writing, both the first engagement portion is prevented from approaching displaced beyond the intermediate position, the second blocking portion, said its tip for the other structural member of said pair of structural members By projecting toward the other structural member from the abutting portion of the abutting member and entering between the adjacent portions of the second engaging portions of the first and second engaging members, both the second engaging portions Is prevented from approaching displacement beyond the intermediate position.
In the third and fourth aspects of the present invention, the contact member has side plate portions on one side portion and the other side portion in the width direction of the engagement groove, and the two side plate portions It is desirable that the first and second blocking portions be disposed between them.
Further, the contact member is formed with a pair of positioning protrusions for positioning the contact member in the width direction of the engagement groove by entering between the protrusions of the engagement grooves of the pair of structural members. One positioning projection of the pair of positioning projections is coupled to one end of the first blocking portion, and the other positioning projection of the pair of positioning projections is coupled to one end of the second blocking portion. It is desirable that
Further, the contact member is formed with a pair of upper blocking plates that prevent the first and second engaging members from moving closer together by entering between the first and second engaging members. One upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the first blocking portion, and the other upper blocking plate portion of the pair of upper blocking plate portions is the above It is desirable to be connected to the other end of the second blocking part.

According to the first and third aspects of the invention having the above-described characteristic configuration, the distal end portions located in the engagement grooves of the first and second blocking portions are between the first engagement portions and the second engagement portions. The first engagement portions of the first and second engagement members and the second engagement portions of the first and second engagement members move closer to each other beyond the intermediate position. It can be surely prevented.
According to the second and fourth aspects of the invention, the first and second engaging portions are formed in the respective portions of the first and second engaging members adjacent to the pair of structural members, and the first and second The distal end portion of the first blocking portion enters between adjacent portions of the first engaging portions of the two engaging members, and the second blocking portion is disposed between the adjacent portions of the second engaging portions of the first and second engaging members. Therefore, it is ensured that the first engaging portions of the first and second engaging members and the second engaging portions of the first and second engaging members move closer to each other beyond the intermediate position. Can be prevented.

The best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 10 show a first embodiment of the present invention. First, the two structural materials A and B to be fixed by the structural material fixing device according to this embodiment will be described. The structural material A is formed in a bar shape having a square cross section as shown in FIGS. . An engaging groove A <b> 1 extending in the longitudinal direction of the structural material A is formed at the center of each side surface of the structural material A. Projection portions A2 and A3 projecting inward in the width direction of the engagement groove A1 are formed at the open end portions of the both side wall surfaces of the engagement groove A1 so as to approach each other. As a result, the engagement groove A1 is formed in a T-shaped cross section. The structural material A may be formed in a rectangular cross section, a T cross section, or other shapes. Further, the engaging groove A1 may be formed only on one side without forming the engaging groove A1 on each side of the structural material A. Further, the protrusions A1 and A2 of the engagement groove A1 may be formed at locations slightly apart from the open end of the engagement groove A1 toward the low side. The structural material B is formed in the same cross-sectional shape as the structural material A. Therefore, the engagement groove B1 is also formed in the same cross-sectional shape as the engagement groove A1, and has protrusions B2 and B3 corresponding to the protrusions A2 and A3. Of course, the structural material B may have a rectangular cross section, a T-shaped cross section, and other shapes as in the structural material A. Further, the structural material B and the engaging groove B1 may have different shapes from the structural material A and the engaging groove A1.

  One end surface of the structural material B is abutted against one side surface A4 of the structural material A. In this case, the structural material A and the structural material B are abutted so as to be orthogonal to each other. Therefore, one side surface A4 of the structural material A and one side surface B4 of the structural material B are also orthogonal to each other. Moreover, the structural materials A and B are disposed so as to be located at the same position in the width direction of the one side surfaces A4 and B4. Therefore, the engagement grooves A1 and B1 are also located at the same position in the width direction. Although the end surface of the structural material B faces one side surface A4 of the structural material A, the structural material B may be arranged to be slightly separated from the one side surface A4. Further, the structural materials A and B may be arranged so that only the edges of the one side surfaces A4 and B4 are orthogonal to each other.

  Next, the structural material fixing device 1 for fixing the structural materials A and B will be described. As shown in FIGS. 1 to 3, the fixing device 1 includes a contact member 2 and a fixing unit 3. ing. The fixing device 1 fixes the structural materials A and B by tightening a bolt (male screw member) 8 that passes through the contact member 2 and is screwed into the nut (female screw member) 6 of the fixing unit 3. ing.

  That is, as shown in FIGS. 1 to 3 and 6, the contact member 2 has a main body 2 </ b> A, and the main body 2 </ b> A includes a top plate portion (main body portion) 2 a and the top plate portion 2 a. , That is, a pair of side plate portions 2b and 2c provided integrally on both sides in the width direction of the structural materials A and B (width direction of the engagement grooves A1 and B1). The top plate portion 2a has a flat plate shape, and is arranged in a state inclined by the same angle with respect to the structural materials A and B. In the case of this embodiment, since the angle formed by the structural materials A and B is 90 °, the top plate portion 2a is arranged in a state inclined by 45 ° with respect to the structural materials A and B. Of course, when the angle formed by the structural materials A and B is an angle other than 90 °, the angle of the top plate 2 with respect to the structural materials A and B is an angle other than 45 °. Both end portions in the longitudinal direction of the top plate portion 2A are abutted against the respective side surfaces A4 and B4 of the structural materials A and B. A bolt seat 2d penetrating the top plate 2a is formed at the center of the top plate 2a. Positioning protrusions (positioning portions) 2e that protrude toward the structural members A and B are formed at the center in the width direction of both ends of the top plate portion 2a. The width of the positioning protrusion 2e is set to be substantially the same as the interval between the protrusions A2, A3 (B2, B3) of the engagement groove A1 (B1). Then, one positioning protrusion 2e is inserted between the protrusions A2 and A3 of the engagement groove A1, and the other positioning protrusion 2e is inserted between the protrusions B2 and B3 of the engagement groove B1, thereby making contact. The member 2 is positioned with respect to the structural materials A and B in the width direction (the width direction of the engagement grooves A1 and B1). A pair of upper blocking plate portions 2f and 2f are provided on the inner surface of the top plate portion 2a facing the structural materials A and B. Each upper blocking plate portion 2f is disposed at a position slightly separated from one end side and the other end side of the top plate portion 2a with respect to the bolt seat 2d.

  The pair of side plate portions 2b and 2c are formed as flat plates having the same shape, and as shown in FIG. 6A, the front view shape is a right triangle with the top plate portion 2a as the hypotenuse. The pair of side plate portions 2b and 2c are arranged to be separated from each other in the width direction of the constituent materials A and B and to face each other. Therefore, in the abutting member 2, an accommodation space S having a triangular shape in section is formed by the top plate portion 2a and the pair of side plate portions 2b and 2c. Two side surfaces orthogonal to each other of the side plate portions 2b and 2c are respectively abutted against one side surfaces A4 and B4 of the structural materials A and B. Thus, in this embodiment, both the top plate portion 2a and the side plate portions 2b, 2c constituting the main body portion 2A are abutted against the side surfaces A4, B4, respectively, but only the top plate portion 2a. May be abutted against one side surface A4, B4, or only the side plate portions 2b, 2c may be abutted against one side surface A4, B4.

  As shown in FIGS. 2 and 3, the fixing unit 3 is disposed between the contact member 2 and the structural materials A and B when the structural materials A and B are fixed. It is accommodated in the accommodation space S of the contact member 2. As shown in FIGS. 2 to 5, the fixing unit 3 includes first and second engaging members 4 and 4 ′, a holding member 5, a nut 6, and a coil spring (biasing means) 7. Are assembled so that they can be handled together.

  As shown in FIGS. 1 to 5 and 7, the first engagement member 4 includes a substrate portion 4a and first and second engagement portions (engagement portions) 4b formed integrally with the substrate portion 4a. 4c. The substrate portion 4a is formed as a flat plate having a shape in which a right angle of a right triangle is cut out, and is disposed in the vicinity of one side plate portion 2b of the contact member 2 in parallel with the side plate portion 2b. ing. In addition, the substrate portion 4 a is arranged so that the side portion that becomes the hypotenuse is parallel to the top plate portion 2 a of the contact member 2. Accordingly, the two side portions of the substrate portion 4a that are at right angles to each other are parallel to the structural materials A and B. A rectangular holding hole 4d is formed at the center of the substrate portion 4a. The holding hole 4d passes through the substrate portion 4a and extends in parallel with the side portion that becomes the oblique side of the substrate portion 4a.

  The first and second engaging portions 4b and 4c are respectively formed on two side portions of the substrate portion 4a that are perpendicular to each other, that is, two side portions adjacent to the structural members A and B, respectively. . The first engaging portion 4b has a substantially U-shaped cross section, and a protruding portion 4e that protrudes inward in the width direction of the engaging groove A1 from a side portion adjacent to the structural material A of the substrate portion 4a. And a connecting portion (proximity portion) 4f extending in parallel with the substrate portion 4a in the direction approaching the structural material A from the tip portion of the protruding portion 4e, and the width of the engaging groove A1 from the tip portion of the connecting portion 4f. And an engaging protrusion 4g protruding outward in the direction. The part from the intermediate part of the connection part 4f of the 1st engaging part 4b to the engaging protrusion 4g is inserted in the engaging groove A1 so that insertion or removal is possible. The second engagement portion 4c is configured in the same manner as the first engagement portion 4b, except that the second engagement portion 4c is removably inserted into the engagement groove B1. That is, it has the protrusion part 4e, the connection part 4f, and the engagement protrusion 4g.

  The second engaging member 4 ′ is disposed in the vicinity of the other side plate portion 2 c of the contact member 2 in parallel with the side plate portion 2 c. Therefore, the second engagement member 4 ′ is parallel to the first engagement member 4. Moreover, the second engagement member 4 'is formed symmetrically with the first engagement member 4 with respect to the bisector L (see FIG. 3) of the engagement grooves A1 and B1, and is disposed symmetrically. Therefore, for the second engagement member 4 ′, the same parts as those of the first engagement member 4 are denoted by the same reference numerals, and the description thereof is omitted. Since the first and second engaging members 4, 4 'are arranged parallel to each other and symmetrically with respect to the bisector L, both first engagements of the first and second engaging members 4, 4' are performed. The connecting portions 4f and 4f of the portions 4b and 4b and the connecting portions 4f and 4f of the second engaging portions 4c and 4c of the first and second engaging members 4 and 4 'are the first and second engaging portions. They are closer to each other than any other part of the members 4, 4 '.

  In each holding hole 4d, 4d of the first and second engaging members 4, 4 ', one end and the other end of the nut 6 in the width direction of the engaging grooves A1, B1 are movable in the same direction, and The holding hole 4d is inserted so as to be immovable in the longitudinal direction of the holding hole 4d and in the direction orthogonal to the top plate portion 2a (the direction in which a line that bisects the angle formed by one side surface A4, B4 extends). A screw hole 6 a is formed at the center of the nut 6. The screw hole 6 a is formed so that its axis coincides with the axis of the bolt seat 2 d of the contact member 2.

  The first and second engaging members 4, 4 ′ are held by the holding member 5 so as to be movable in the width direction of the engaging grooves A 1, B 1. That is, the holding member 5 is made of a relatively thin plate made of metal, and as shown in FIGS. 2 to 5, 8, and 9, a substrate portion 5 a and substrates on both sides of the substrate portion 5 a. It has the control board parts 5b and 5c provided integrally with the part 5a. The board portion 5a is arranged in the opposite direction of the first and second engagement members 4, 4 '(engagement grooves A1, B1 in the width direction) is slidably contacted. The restricting plate portions 5b and 5c project at right angles from the substrate portion 5a toward the intersecting side of the side surfaces A4 and B4. The restricting plate portions 5b and 5c are disposed outside the substrate portions 4a and 4a of the first and second engaging members 4 and 4 'and face the substrate portions 4a and 4a, respectively. The restricting plate portions 5b and 5c cover the holding holes 4d and 4d of the first and second engaging members 4 and 4 'from the outside. This prevents the nut 6 from falling out of the holding hole 4d. Moreover, the width of the nut 6 in the width direction of the engagement grooves A1 and B1 is substantially the same as the interval between the regulation plate portions 5b and 5c. Accordingly, the nut 6 is fixed in position in the width direction of the engagement grooves A1 and B1 by the holding member 5, and moves relative to the first and second engagement members 4 and 4 'in the same direction. Nipping portions 5d that protrude so as to approach each other are formed at the tip portions of the restriction plate portions 5b and 5c. The clamping plate portion 5d formed on the regulating plate portion 5b is slidably inserted between the inner surface of the holding hole 4d of the first engaging member 4 on the side of the engaging portion 4b and the nut 6 so as to be slidable. The sandwiching plate portion 5d formed in the portion 5c is slidably inserted between the inner surface of the holding hole 4d of the second engagement member 4 'on the engagement portion 4b side and the nut. As a result, the first and second engaging members 4 and 4 ′ are supported by the base plate portion 5 a and the holding plate portions 5 d and 5 d of the holding member 5 so as to be movable in the width direction of the engaging grooves A 1 and B 1 via the nut 6. Has been.

  A coil spring 7 is provided between the substrate portions 4a and 4a of the first and second engaging members 4 and 4 '. The coil spring 7 is provided in a compressed state and urges the first and second engaging members 4 and 4 ′ in a direction away from each other. The first and second engaging members 4 and 4 'are pressed against the restricting plate portions 5b and 5c of the holding member 5 by this urging force (see FIG. 4). Hereinafter, the positions of the first and second engaging members 4 and 4 ′ at this time are referred to as a maximum separated position. On the other hand, the first and second engaging members 4, 4 ′ can move toward each other against the urging force of the coil spring 7, and as shown in FIG. The connecting portions 4f and 4f of the second engaging portions 4b and 4c and the connecting portions 4f and 4f of the first and second engaging portions 4b and 4c of the second engaging member 4 ′ can be moved close to each other. is there. Hereinafter, the positions of the first and second engaging members 4 and 4 ′ at this time are referred to as maximum approach positions. Therefore, the first and second engagement members 4 and 4 ′ are held by the holding member 5 so as to be movable between the maximum approach position and the maximum separation position in the width direction of the engagement grooves A 1 and B 1. The first and second engaging members 4 and 4 ′ are held by the substrate portion 5 a and the holding plate portions 5 d and 5 d of the holding member 5 when they are located at any position between the maximum approach position and the maximum separation position. It is always pinched. As a result, the first and second engaging members 4, 4 ′, the holding member 5, the nut 6, and the coil spring 7 are unitized so that they can always be handled integrally.

  As shown in FIG. 5, when the first and second engaging members 4 and 4 'are located at the maximum approach position, the engaging protrusions 4e and 4e of the first and second engaging members 4 and 4'. The distance (external dimension) L between the front end surfaces is smaller than the interval W between the front end surfaces of the protrusions A2 and A3; B2 and B3 of the engaging grooves A1 and B1. Accordingly, the first and second engaging portions 4b and 4c including the engaging protrusions 4g and 4g can be inserted into the engaging grooves A1 and B1 from between the protruding portions A2 and A3; B2 and B3. The outer dimensions of the engaging ridges 4e and 4e are such that the protrusions A2 and A3 (when the first and second engaging members 4 and 4 'are located at a predetermined intermediate position between the maximum approach position and the maximum separation position). It is equal to the interval W between B2, B3). Therefore, when the first and second engaging portions 4b and 4c are moved closer to the maximum approach position side beyond the intermediate position, they can be inserted into and removed from the engagement groove A1 (B1).

  After the engaging protrusions 4g and 4g pass between the protrusions A2 and A3; B2 and B3 and enter the engaging groove A1; B1, the first and second engaging members 4 and 4 'can freely move. In this state, the first and second engaging members 4, 4 ′ are moved away from each other in the width direction of the engaging grooves A 1, B 1 by the biasing force of the coil spring 7. When the first and second engaging members 4 and 4 'move to a position immediately before the maximum separation position, the first engaging member 4 is connected to the connecting portion 4f of the first and second engaging portions 4b and 4c. , 4f are stopped by abutting against the front end surfaces of the protrusions A2, B2 of the engagement grooves A1, B1, respectively, and the second engagement member 4 'is connected to the first and second engagement portions 4b, 4c. The parts 4f and 4f are stopped by abutting against the tip surfaces of the protrusions A3 and B3 of the engaging grooves A1 and B1, respectively. Hereinafter, the positions of the first and second engaging members 4, 4 'at this time are referred to as engaging positions.

  Accordingly, the holding member 5 allows the first and second engaging members 4 and 4 'to be inserted into the engaging grooves A1 and B1 between the maximum approach position and the maximum separation position including the intermediate position and the engagement position. It is held movably in the width direction. However, this is not always necessary. For example, the maximum separation position may be the engagement position. In that case, the connecting portions 4f and 4f of the first and second engaging portions 4b and 4c of the first engaging member 4 abut against the protruding portions A2 and B2 of the engaging grooves A1 and B1, respectively. At the same time as the connecting portions 4f and 4f of the first and second engaging portions 4b and 4c of the joint member 4 'abut against the protruding portions A3 and B3 of the engaging grooves A1 and B1, respectively, the first and second engaging members 4 , 4 'abut against the restricting plate portions 5b, 5c of the holding member 5.

  When the first and second engaging members 4, 4 ′ are positioned at the engaging position, the upper blocking plate portions 2 f and 2 f formed on the inner surface of the top plate portion 2 a are the first and second engaging members 4. , 4 'of the substrate portions 4a and 4a are located between the portions located near the top plate portion 2a. The width of the upper blocking plate portion 2f in the width direction of the engagement grooves A1 and B1 is the distance between the substrate portions 4a and 4a when the first and second engagement members 4 and 4 'are located at the engagement positions. It is set almost the same. Therefore, the part located in the board | substrate part 2a vicinity of the board | substrate parts 4a and 4a does not move approaching toward a maximum approach position from an engagement position. However, since the first and second engaging portions 4b and 4c are largely separated from the upper blocking plates 2f and 2f, the approaching movement is hardly restricted by the upper blocking plates 2f and 2f. For this reason, the first and second engaging portions 4b and 4c may move closer to each other beyond the intermediate position from the engaging position, and may come out of the engaging grooves A1 and B1.

  In order to prevent such a problem, first and second blocking plate portions (first and second blocking portions) 2g and 2h are provided on the inner surface of the top plate portion 2a facing the structural materials A and B. Is formed. The first blocking plate portion 2g is disposed at one end of the top plate portion 2a located on the structural material A side. The 2nd blocking board part 2h is arrange | positioned at the other end part of the top-plate part 2a located in the structural material B side. Both end portions of the first and second blocking plate portions 2g and 2h along the longitudinal direction of the top plate portion 2a are connected to the positioning projection 2e and the upper blocking plate portion 2f, respectively, but are arranged apart from at least one of them. May be. The first and second blocking plate portions 2g and 2h are arranged in the center portion in the width direction of the top plate portion 2a (the width direction of the engagement grooves A1 and B1).

  The side part (tip part) 2i located on the structural material A side of the first blocking plate part 2g extends in parallel with the structural material A and is located in the engagement groove A1. Accordingly, the side portion 2i of the first blocking plate portion 2g enters the portion located in the engagement groove A1 between the connection portions 4f and 4f of the first engagement portions 4b and 4b. Moreover, the thickness of the first blocking plate portion 2g is set to be substantially the same as the distance between the connecting portions 4f and 4f when the first and second engaging members 4 and 4 'are located at the engaging positions. ing. Accordingly, the first engaging portions 4b and 4b do not move closer to each other from the engaging position. However, the thickness of the first blocking plate portion 2g is not necessarily the same as the distance between the first engaging portions 4b and 4b, and the first engaging portions 4b and 4b move closer to each other beyond the intermediate position. Anything that can prevent this may be used.

  The second blocking plate portion 2h is a first blocking plate except that the side portion (tip portion) 2j located on the structural material B side enters between the connecting portions 4f and 4f of the second engaging portions 4c and 4c. It is comprised similarly to the part 2g. Therefore, description of the second blocking plate portion 2h is omitted. If the side portions 2i and 2j enter between the connecting portions 4f and 4f, the first engaging portions 4b and 4b and the second engaging portions 4c and 4c are almost certainly prevented from moving from the engaging position. Therefore, it is not always necessary to locate in the engagement grooves A1 and B1.

  A threaded portion 8 a of a bolt 8 that passes through the bolt seat 2 d of the contact member 2 and the substrate portion 5 a of the holding member 5 is screwed into the threaded hole 6 a of the nut 6. The head 8b of the bolt 8 abuts against the bolt seat 2d. Therefore, when the bolts 8 are tightened in the state where the first and second engaging members 4, 4 ′ are located at the engaging positions shown in FIG. 2, the fixing unit 3 approaches the top plate portion 2 a of the contact member 2. It is moved in the direction (upward in FIGS. 2 and 3). When the bolt 8 is further tightened, the engagement protrusions 4g and 4g of the first engagement member 4 abut against the protrusions A2 and B2 of the engagement grooves A1 and B1, and the engagement protrusion of the second engagement member 4 '. The strips 4g and 4g abut against the protrusions A3 and B3 of the engagement grooves A1 and B1, respectively. Further, one end portion of the top plate portion 2a of the contact member 2 and one side portion of the side plate portions 2b and 2c are abutted against one side surface A4 of the structural material A by the reaction force, and the top plate portion of the contact member 2 The other end portion of 2a and the other side portions of the side plate portions 2b and 2c are abutted against one side surface B4 of the structural material B. Thereby, the structural materials A and B are fixed via the fixing device 1.

  When the structural materials A and B are fixed by the structural material fixing device 1 having the above-described configuration, first and second engaging members 4 and 4 ′ of the fixing unit 3 are first shown as shown in FIGS. 5 and 8. Is moved toward the maximum approach position against the biasing force of the coil spring 7. This can be performed by, for example, moving the first and second engaging members 4 and 4 ′ close together with the thumb and index finger. Next, the fixing unit 3 is moved closer to the structural materials A and B, and the engaging protrusions 4g and 4g of the first engaging portions 4b and 4b of the first and second engaging members 4 and 4 'and the connecting portions. 4f and 4f are inserted into the engaging groove A1 from between the protrusions A2 and A3, and the engaging protrusions 4g of the second engaging portions 4c and 4c of the first and second engaging members 4 and 4 ' 4g and connecting portions 4f and 4f are inserted into the engaging groove B1 from between the protruding portions B2 and B3. Thereafter, the first and second engaging members 4, 4 'are released so that they can move freely. Then, the first and second engagement members 4 and 4 ′ are moved to the engagement position by the coil spring 7 and stopped. In this state, the four engaging protrusions 4g face the protrusions A2, A3, B2, and B3, so that the fixed unit 3 is held by the structural members A and B so as not to be detached as shown in FIG. .

  Next, the both ends of the top plate portion 2a of the contact member 2 and the side plate portions 2b and 2c are pushed into the side surfaces A4 and B4 of the structural members A and B so that the fixed unit 3 enters the accommodating space S, respectively. Hit it. At this time, the positioning protrusions 2e and 2e of the contact member 2 enter between the protrusions A2 and A3 of the engagement groove A1 and between the protrusions B2 and B3 of the engagement groove B1, so that the engagement grooves A1 and B1 The contact member 2 is positioned in the width direction. In addition, in the state where the contact member 2 is abutted against the one side surfaces A4 and B4 of the structural materials A and B, the first and second upper blocking plates 2f and 2f are located at the engagement positions. The two engaging members 4 and 4 'enter between the board portions 4a and 4a, and the tip portions 2i and 2j of the first and second blocking plate portions 2g and 2h are connected to the connecting portions 4f of the first engaging portions 4b and 4b. , 4f and between the connecting portions 4f, 4f of the second engaging portions 4c, 4c. As a result, the first and second engaging members 4, 4 ′ cannot move close to each other. Therefore, even if a force that causes the first and second engaging members 4 and 4 ′ to approach each other acts, the first and second engaging portions 4 b and 4 c come out of the engaging grooves A 1 and B 1. There is nothing. Thereafter, the threaded portion 8 a of the bolt 8 is inserted from the bolt seat 2 d and screwed into the threaded hole 6 a of the nut 6. Thereafter, the structural materials A and B are fixed by tightening the bolts 8 (see FIG. 10).

  In order to release the fixing of the structural materials A and B, a procedure reverse to the above may be performed. That is, the bolt 8 is loosened and removed from the nut 6. Next, the contact member 2 is removed, and the fixed unit 3 is exposed. Thereafter, the first and second engaging members 4, 4 ′ are moved closer to the insertion position. Then, the fixing unit 3 is removed from the structural materials A and B.

  FIG. 11 shows a fixed unit 3 </ b> A used in place of the fixed unit 3. In this fixed unit 3A, a holding member 5A is used instead of the holding member 5. The holding member 5A is made of an elastic plate material such as spring steel, and the restricting plate portions 5b and 5c are fixed to the substrate portions 4a and 4a of the first and second engaging members 4 and 4 ′. The first and second engaging members 4 and 4 ′ are formed by the first and second engaging portions 4 b and 4 c of the first engaging member 4 and the second engaging member 4 ′ by elastic deformation of the holding member 5 </ b> A. The first and second engaging portions 4b and 4c are displaceable between a maximum approach position indicated by an imaginary line where the first and second engagement portions 4b and 4c abut each other and a maximum separation position indicated by a solid line. The holding member 5A is in a natural state without elastic deformation when the first and second engaging members 4, 4 'are located at the maximum separated position, and the first and second engaging members 4, 4 are in a natural state. When ′ is located at the maximum approach position, the first and second engagement members 4, 4 ′ are elastically deformed in accordance with the amount of displacement from the maximum separation position to the maximum approach position. As a result, when the first and second engaging members 4 and 4 ′ are located at the maximum approach position, the holding member 5 </ b> A biases them to return them to the maximum separated position. As will be apparent, the holding member 5A is also used as an urging means. The relationship between the maximum approach position and the maximum separation position and the engagement position is set to be the same as that in the above embodiment.

  When the fixed unit 3A configured as described above is used, the coil spring 7 is not necessary, so that it is possible to reduce the manufacturing effort and the number of assembly steps, thereby reducing the manufacturing cost of the fixed unit 3A. can do.

  FIG. 12 shows a fixed unit 3 </ b> B used in place of the fixed unit 3. In the fixed unit 3B, female screws are provided on the side portions (side portions separated from the structural materials A and B; the upper side portion in FIG. 10) facing the top plate portion 2a of the first and second engaging members 4 and 4 ′. One end and the other end of a female screw part (female screw member) 9 having a hole 9a are integrally provided. In other words, the first and second engaging members 4, 4 ′ are integrally formed via the female screw portion 9. The female screw portion 9 corresponds to the nut 6 of the above embodiment, and a bolt 8 is screwed into the female screw hole 9a. The substrate portions 4a and 4a (intermediate portions located between the female screw portion 9 and the first and second engaging portions 4b and 4c) of the first and second engaging members 4 and 4 'are formed thin. As a result, the first engaging portions 4b and 4b (second engaging portions 4c and 4c) of the first and second engaging members 4 and 4 ′ can be elastically deformed in the direction of approaching and separating from each other. When the substrate portion 4a is in a natural state where no external force acts on the substrate portion 4a, the first engagement portion 4b and the second engagement portion 4c are positioned at the maximum separation position in the above embodiment. Moreover, the base plate portion 4a is elastically deformed until the connecting portions 4f and 4f of the first engaging portions 4b and 4b and the connecting portions 4f and 4f of the second engaging portions 4c and 4c abut each other and reach the maximum approach position. Is possible. Therefore, the board | substrate part 4a can move the 1st, 2nd engagement parts 4b and 4c inserted in engagement groove | channel A1, B1 to an engagement position by elastically returning and deforming. As will be apparent, in this fixed unit 3B, the board portions 4a, 4a of the first and second engaging members 4, 4 'bring the first and second engaging portions 4, 4' away from the maximum approach position. It is also used as urging means for displacing to the engagement position.

  FIG. 13 shows a fixed unit 3 </ b> C used in place of the fixed unit 3. The fixed unit 3 </ b> C is obtained by omitting the holding member 5 from the fixed unit 3, and the other configuration is the same as that of the fixed unit 3. Therefore, in this fixed unit 3C, the first and second engaging members 4 and 4 ', the nut 6 and the coil spring 7 are assembled as a unit, but there is nothing to maintain the assembled state. While it is necessary to maintain the state, the holding member 5 is unnecessary, and thus the manufacturing cost of the fixed unit 3C can be reduced accordingly. When the coil spring 7 is in the natural state, the first and second engaging members 4 and 4 'are located at the maximum separated position. It is also possible to use the coil spring 7 as the holding member 5 by coupling both end portions of the coil spring 7 to the first and second engaging members 4, 4 ′.

It is sectional drawing which follows the XX line of FIG. 2 which shows one Embodiment of this invention. It is sectional drawing which follows the XX line of FIG. It is sectional drawing similar to FIG. 2 shown in the state which fastened the volt | bolt. It is sectional drawing which shows the fixing unit used in the embodiment. The relationship between the distance between the tip surfaces of the two engaging protrusions when the first and second engaging members of the fixing unit are positioned at the maximum approach position and the distance between the two protruding portions of the engaging groove FIG. It is a figure which shows the contact member used in the embodiment, Comprising: FIG. 6 (A) is the front view, FIG.6 (B) is the side view, FIG.6 (C) is the top view, figure 6 (D) is a bottom view thereof. It is a figure which shows the 1st engaging member used in the embodiment, Comprising: FIG. 7 (A) is the front view, FIG.7 (B) and (C) are B arrows of FIG.7 (A), respectively. FIG. It is a figure for demonstrating the procedure which fixes two structural materials using the fixing device of the embodiment, Comprising: It is a perspective view which shows the process of attaching a fixing unit to two structural materials. It is a perspective view which shows the process of attaching the contact member and a volt | bolt in the same procedure. It is a perspective view which shows the state which fixed two structural materials with the fixing device of the embodiment. It is sectional drawing which shows the other example of the fixing unit used in the fixing device. It is sectional drawing which shows the further another example of the fixing unit used in the fixing device. It is sectional drawing which shows another example of the fixing unit used in the fixing device.

Explanation of symbols

A Structural material A1 Engaging groove A2 Protruding portion A3 Protruding portion A4 One side surface B Structural material B1 Engaging groove B2 Protruding portion B3 Protruding portion B4 One side surface 1 Structural material fixing device 2 Abutting member 2A Main body portion 2b Side plate portion 2c Side plate Part 2g first blocking plate section (first blocking section)
2h Second blocking plate part (second blocking part)
2i Side (first end) of first blocking plate
2j Side portion (tip portion) of second blocking plate portion
4 1st engagement member 4 '2nd engagement member 4b 1st engagement part 4c 2nd engagement part 4f Connection part (proximity part)
6 Nut (Female thread member)
8 Bolt (Male thread member)
9 Female thread (Female thread member)

Claims (9)

In order to fix a pair of structural members each having an engaging groove formed on one side surface and projecting portions protruding so as to approach each other on both side walls facing each other,
A contact member abutted against one side surface of the pair of structural members;
Between the contact member and the pair of structural members, the engagement grooves are arranged so as to be able to approach and move away from each other in the width direction of the engagement groove. First and second engaging members having portions formed thereon;
A female screw member provided on the first and second engaging members so as not to move in a direction away from the one side surface of the pair of structural members;
A male screw member that penetrates the contact member and is screwed into the female screw member,
When the first and second engaging portions of the first engaging member and the first and second engaging portions of the second engaging member are displaced toward each other beyond a predetermined intermediate position, It can be inserted into the engagement groove through the protrusions formed on both side wall surfaces of the engagement groove, and when the displacement is separated from each other beyond the intermediate position, the engagement portion engages with the protrusion. In the fixing device of the structural material that cannot be escaped from the engagement groove,
The contact member has a distal end projecting toward the one structural material side from the abutting portion of the contact member with respect to one structural material of the pair of structural materials. The first blocking portion located in the groove and the tip portion protrudes toward the other structural material from the abutting portion of the abutting member with respect to the other structural material of the pair of structural materials, and the other structural material A second blocking portion located in the engaging groove of the structural material is formed integrally with the contact member ,
In the first blocking portion, the tip portion located in the engagement groove enters between the first engagement portions of the first and second engagement members, so that the first engagement portions are in the intermediate position. To prevent approaching displacement beyond
In the second blocking portion, the tip portion located in the engagement groove enters between the second engagement portions of the first and second engagement members, so that both the second engagement portions are in the intermediate position. The structural material fixing device is characterized in that it is prevented from approaching and moving beyond the range. In order to fix a pair of structural members each having an engaging groove formed on one side surface and projecting portions protruding so as to approach each other on both side walls facing each other,
A contact member abutted against one side surface of the pair of structural members;
It is toward and away from displaceable to each other in the width direction of the engaging groove between the abutment member and the pair of structural members, the engaging than the other portions in each of respective portions adjacent to the pair of structural members First and second engaging members formed with first and second engaging portions having proximity portions close to each other in the width direction of the groove ;
A female screw member provided on the first and second engaging members so as not to move in a direction away from the one side surface of the pair of structural members;
A male screw member that penetrates the contact member and is screwed into the female screw member,
When the first and second engaging portions of the first engaging member and the first and second engaging portions of the second engaging member are displaced toward each other beyond a predetermined intermediate position, It can be inserted into the engagement groove through the protrusions formed on both side wall surfaces of the engagement groove, and when the displacement is separated from each other beyond the intermediate position, the engagement portion engages with the protrusion. In the fixing device of the structural material that cannot be escaped from the engagement groove,
The contact member has first and second blocking portions formed integrally with the contact member ,
The first blocking portion protrudes toward the one structural material side from the abutting portion of the abutting member with respect to one structural material of the pair of structural materials . By entering between the adjacent portions of the first engaging portions of the engaging member, the first engaging portions are prevented from approachingly moving beyond the intermediate position,
The tip of the second blocking portion protrudes toward the other structural member from the abutting portion of the abutting member with respect to the other structural member of the pair of structural members, and the first and second engagement members. An apparatus for fixing a structural material, wherein the second engaging portions are prevented from approachingly moving beyond the intermediate position by entering between the adjacent portions of the second engaging portions of the combined member. The contact member is formed with a pair of positioning projections for positioning the contact member in the width direction of the engagement groove by entering between the protrusions of the engagement grooves of the pair of structural members.
One positioning projection of the pair of positioning projections is connected to one end of the first blocking portion,
3. The structural material fixing device according to claim 1, wherein the other positioning projection of the pair of positioning projections is connected to one end of the second blocking portion . The contact member is formed with a pair of upper blocking plates that prevent the first and second engagement members from moving closer by entering between the first and second engagement members,
One upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the first blocking portion,
The structural member fixing device according to claim 3, wherein the other upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the second blocking portion . An apparatus for fixing a structural material for fixing a pair of structural materials each having an engaging groove formed on one side surface and projecting portions protruding so as to approach each other on opposite side wall surfaces of the engaging groove. ,
A contact member that is abutted against one side surface of the pair of structural members, and is disposed between the contact member and the pair of structural members so as to be able to approach and separate from each other in the width direction of the engagement groove. The first and second engaging members each having a first and second engaging portion formed in each of the portions adjacent to the structural material, and the first and second engaging members on the one of the pair of structural materials. A female screw member that is immovable in a direction away from the side surface; and a male screw member that passes through the contact member and is screwed into the female screw member. When the two engaging portions and the first and second engaging portions of the second engaging member are moved close to each other beyond a predetermined intermediate position, the protruding portions formed on both side wall surfaces of the engaging groove So that it can be inserted into the engaging groove through the gap, and can be displaced away from each other beyond the intermediate position. That when, in the contact member for use in the fixing device of the structure material becomes impossible to escape from the engagement grooves by engaging with the protrusions,
The contact member has a distal end projecting toward the one structural material side from the abutting portion of the contact member with respect to one structural material of the pair of structural materials, and the one of the structural materials . The first blocking portion located in the engagement groove, and the tip portion protrudes toward the other structural material from the abutting portion of the abutting member with respect to the other structural material of the pair of structural materials. Each of the second blocking portions located in the engagement groove is formed integrally with the contact member ,
In the first blocking portion, the tip portion located in the engagement groove enters between the first engagement portions of the first and second engagement members, so that the first engagement portions are in the intermediate position. To prevent approaching displacement beyond
In the second blocking portion, the tip portion located in the engagement groove enters between the second engagement portions of the first and second engagement members, so that both the second engagement portions are in the intermediate position. An abutting member for a fixing device for a structural material, wherein the abutting member is prevented from approaching and being displaced beyond. An apparatus for fixing a structural material for fixing a pair of structural materials each having an engaging groove formed on one side surface and projecting portions protruding so as to approach each other on opposite side wall surfaces of the engaging groove. ,
A contact member that is abutted against one side surface of the pair of structural members, and is disposed between the contact member and the pair of structural members so as to be able to approach and separate from each other in the width direction of the engagement groove. First and second engaging members each having a proximity portion closer to each other in the width direction of the engagement groove than the other portion in each portion adjacent to the structural material; A female screw member that is immovably provided in the first and second engaging members in a direction away from the one side surface of the pair of structural members, and is screwed into the female screw member through the contact member. A male screw member, and the first and second engagement portions of the first engagement member and the first and second engagement portions of the second engagement member cross each other beyond a predetermined intermediate position. When the displacement is approached, the engagement groove passes through the protrusions formed on both side walls of the engagement groove. In the abutting member used in the fixing device for the structural material, which can be inserted into the engaging groove and cannot be removed from the engaging groove by engaging with the protruding portion when being displaced apart from each other beyond the intermediate position. ,
The contact member has first and second blocking portions formed integrally with the contact member ,
The first blocking portion protrudes toward the one structural material side from the abutting portion of the abutting member with respect to one structural material of the pair of structural materials . By entering between the adjacent portions of the first engaging portions of the engaging member, the first engaging portions are prevented from approachingly moving beyond the intermediate position,
The tip of the second blocking portion protrudes toward the other structural member from the abutting portion of the abutting member with respect to the other structural member of the pair of structural members, and the first and second engagement members. For a structural material fixing device, wherein the second engaging portions are prevented from approaching and being displaced beyond the intermediate position by entering between the adjacent portions of the second engaging portions of the combined member. Contact member. The contact member has side plate portions on one side portion and the other side portion in the width direction of the engagement groove, and the first and second blocking portions are disposed between the two side plate portions. The contact member for a fixing device for a structural material according to claim 6 or 7 , The contact member is formed with a pair of positioning projections for positioning the contact member in the width direction of the engagement groove by entering between the protrusions of the engagement grooves of the pair of structural members.
One positioning projection of the pair of positioning projections is connected to one end of the first blocking portion,
8. The structural member fixing device contact according to claim 5, wherein the other positioning projection of the pair of positioning projections is connected to one end of the second blocking portion. Member . The contact member is formed with a pair of upper blocking plates that prevent the first and second engagement members from moving closer by entering between the first and second engagement members,
One upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the first blocking portion,
9. The structural member fixing device contact according to claim 8, wherein the other upper blocking plate portion of the pair of upper blocking plate portions is connected to the other end portion of the second blocking portion. Member .

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