JP6840504B2 - Fall-off deterrent and locking member - Google Patents

Description

The present invention relates to a drop-off preventive tool for preventing the fixture fixed to the flange portion of the shaped steel material from falling off, and a locking member used for the drop-off preventive tool.

For example, when suspending a hanging tool from a shaped steel material such as H-shaped steel or L-shaped steel used as a beam of a building, a fixing tool fixed to a flange portion of the shaped steel material has been conventionally used. .. The hanger is hung from the fixture while penetrating a part or the whole of the fixture. Then, the hanging device such as an electric device and an air conditioner is suspended and supported by the hanging tool suspended from the fixing tool.

In order to prevent such a fixture from falling off from the flange portion in the event of an earthquake or the like, for example, Patent Document 1 below discloses a technique relating to a drop-off preventive device that prevents the fixture from falling off. The drop-off preventive tool of Patent Document 1 is configured to include a locking member that is locked to the fixing tool, and the locking member prevents the fixing tool from falling off.

Japanese Patent No. 5455699

In the technique of Patent Document 1, the locking member is arranged on the outside of the fixture. For this reason, a space for arranging the locking member is required around the fixture, and if the space around the fixture is narrow, it becomes difficult to attach the drop-off deterrent, or the fall-off deterrent can be attached. Sometimes not.

Therefore, it is desired to realize a drop-off preventive device that can be attached even when the space around the fixture is narrow and a locking member used for the drop-out preventive device.

In view of the above, the characteristic configuration of the drop-off preventive tool is that at least a part of the hanger that is fixed to one end of the flange portion that is projected along the width direction of the shaped steel material and is connected to the hanging object is inside. A drop-out deterrent that prevents the fixture from falling off from the flange portion of the fixture, which is intended to suspend and support the suspender while being arranged in a space, and is locked to the fixture. A locking member and a second locking member that is connected to the first locking member and locked to the other end of the flange portion are provided, and the first locking member is in the width direction. It is configured to be locked to the end edge of the fixture through the internal space of the fixture along the above, and has an insertion portion through which the suspender is inserted in the internal space. is there.

According to this configuration, a first locking member locked to a fixture fixed to one end of a flange portion of a shaped steel material and a second locking member locked to the other end of the flange portion are formed. Since they are connected to each other, the flange portion is sandwiched between the fixture and the second locking member, and the fixture can be prevented from falling off from the flange portion. Further, since the first locking member that locks to the end edge of the fixture is arranged so as to pass through the internal space of the fixture, the fall-out deterrent can be easily prevented even when the space around the fixture is narrow. Can be installed. Further, in the internal space of the fixture, since the suspender is inserted into the insertion portion of the first locking member, it is possible to prevent the suspender and the first locking member from interfering with each other. Therefore, according to this configuration, even when the space around the fixture is narrow, the drop-off deterrent can be attached while avoiding interference with the suspender.

Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

As one embodiment, it is preferable that the insertion portion is composed of a notch formed along the width direction from one end portion in the width direction of the first locking member.

According to this configuration, for example, even when the hanging tool is already suspended from the fixing tool, the first locking member is moved to the internal space of the fixing tool along the width direction to obtain the fixing tool. In the internal space, the first locking member can be inserted into the internal space of the fixture while the hanger is placed along the notch as the insertion portion. Therefore, according to this configuration, by inserting the first locking member into the internal space of the fixture along the width direction, it is possible to attach the fall-out deterrent while avoiding interference with the suspender. Becomes easier.

In one embodiment, the first locking member has a pair of locking arms that are spaced apart along the longitudinal direction of the shaped steel and are each locked to the fixture, and the pair of engaging members. It is preferable that the stop arms are arranged on both sides of the hanger in the longitudinal direction.

According to this configuration, since the pair of locking arms are locked to the edge of the fixture at positions separated along the longitudinal direction of the shaped steel material, it is possible to prevent the fixture from tilting in the longitudinal direction. Further, since the pair of locking arms are arranged on both sides of the hanger in the longitudinal direction, it is possible to prevent each of the pair of locking arms and the hanger from interfering with each other in the internal space of the fixture.

In one embodiment, the locking arm preferably has a locking portion capable of supporting the fixture from below.

According to this configuration, for example, when the fixture is about to be disengaged from the flange portion, the fixture can be supported from below by the locking portion, and it is possible to prevent the fixture from being completely disengaged from the flange portion.

As one embodiment, the first locking member includes a main body plate portion arranged along the bottom surface of the flange portion and along the width direction, and a pair of facing plates bent and formed at both ends of the main body plate portion. It is preferable that the locking arm is composed of a pair of facing plate portions.

According to this configuration, a pair of facing plate portions as a pair of locking arms are formed by bending both ends of the main body plate portion along the bottom surface of the flange portion, so that the facing plate portion is a kind of rib. Can function as. Therefore, according to this configuration, the strength of the first locking member can be increased.
Further, in this configuration, since both ends of the main body plate portion along the bottom surface of the flange portion are bent to form a pair of facing plate portions, the length of each facing plate portion in the longitudinal direction of the shaped steel material is shortened. Therefore, according to this configuration, even when the internal space of the fixture is narrow in the longitudinal direction of the shaped steel material, the pair of facing plate portions can be inserted into the internal space of the fixture.

As one embodiment, the first locking member has a connecting plate portion formed along the vertical direction, and the connecting plate portion has a flange portion in the width direction of the second locking member. It is preferable that the end opposite to the locking end of the is connected.

According to this configuration, the main body portion of the first locking member and the second locking member can be arranged at different positions in the vertical direction by the connecting plate portion formed along the vertical direction. As a result, for example, it becomes easy to apply a configuration in which the first locking member and the second locking member can move relative to each other along the width direction. In other words, a configuration in which the overall length in the width direction of the drop-off preventive tool including the first locking member and the second locking member can be adjusted is made by using the connecting plate portion along the vertical direction. It can be easily realized.

Further, in view of the above, the characteristic configuration of the locking member used for the fall-off inhibitor is a suspension that is fixed to one end of a flange portion that is projected along the width direction of the shaped steel material and is connected to the object to be suspended. It is used as a drop-off preventive tool that prevents the fixture that suspends and supports the hanging tool from falling off from the flange portion in a state where at least a part of the tool is arranged in the internal space, and is locked to the other end of the flange portion. It is a locking member that is connected to the other end side locking member and is locked to the fixture on one end side of the flange portion, and passes through the internal space of the fixture along the width direction. It is configured to be locked to the end edge of the fixture, and has an insertion portion through which the suspender is inserted in the internal space.

According to this configuration, the locking member locked to the fixture fixed to one end of the flange portion of the shaped steel material and the other end side locking member locked to the other end of the flange portion are mutually connected. Since they are connected, the flange portion is sandwiched between the fixture and the locking member on the other end side, and the fixture can be prevented from falling off from the flange portion. Further, since the locking member that locks to the edge of the fixture is arranged so as to pass through the internal space of the fixture, the locking member can be easily arranged even when the space around the fixture is narrow. it can. Further, in the internal space of the fixture, since the suspender is inserted into the insertion portion of the locking member, it is possible to prevent the suspending tool and the locking member from interfering with each other. Therefore, according to the locking member according to this configuration, even when the space around the fixture is narrow, the locking member is arranged while avoiding interference with the suspending tool, and the falling-off preventive tool is fixed to the flange portion of the shaped steel material. can do.

Perspective view of the dropout deterrent An exploded perspective view of the dropout deterrent Cross-sectional front view of the dropout deterrent IV-IV cross-sectional view in FIG. Assembly drawing of the first locking member Cross-sectional front view of the dropout deterrent according to another embodiment Perspective view of the first locking member according to another embodiment Perspective view of the first locking member according to another embodiment Perspective view of the first locking member according to another embodiment

[First Embodiment]
The first embodiment of the dropout deterrent device 1 will be described with reference to the drawings.
As shown in FIG. 1, the drop-off preventive tool 1 prevents the fixing tool 40 fixed to the shaped steel material 99 from falling off. The dropout deterrent tool 1 is fixed to the shaped steel material 99 in order to prevent the fixture 40 from falling off. For example, the shaped steel material 99 is arranged along the ceiling surface of a building such as a store or a factory (along the horizontal direction), and is used as a beam of the building. For example, as the shaped steel material 99, an H-shaped steel having an H-shaped cross section, an L-shaped steel having an L-shaped cross section, or the like is used. As shown in FIG. 1, in the present embodiment, a case where H-shaped steel is used as the shaped steel material 99 will be described as an example. In this example, the shaped steel material 99 has a plate-shaped web portion 99a extending in the vertical direction and a plate-shaped flange portion 99b extending in the horizontal direction from the lower end portion of the web portion 99a. For example, the flange portion 99b is formed so as to extend from the lower end portion of the web portion 99a to both sides along the horizontal direction.

In the present specification, the extending direction of the shaped steel material 99 is defined as the longitudinal direction L, and the direction along the horizontal direction and orthogonal to the longitudinal direction L is defined as the width direction W. Hereinafter, one side of the longitudinal direction L will be referred to as the longitudinal first side L1, and the other side will be referred to as the longitudinal second side L2. Further, one side of the width direction W will be referred to as the first side W1 in the width direction, and the other side will be referred to as the second side W2 in the width direction. In addition, in this specification, to follow a specific direction means not only when the direction is completely parallel to the specific direction but also with respect to the specific direction within the range of manufacturing error such as installation and assembly. It is a concept that includes a slightly tilted state. More specifically, it also includes a state of being tilted within a range of ± 15 ° or less with respect to the specific direction.

In the present embodiment, the drop-off preventive tool 1 is fixed to one end of a flange portion 99b formed so as to project along the width direction W of the shaped steel material 99, and at least a part of the hanger 98 connected to the hanging object. Targets the fixture 40 that suspends and supports the suspender 98 in a state where the fixture 40 is arranged in the internal space 41, and prevents the fixture 40 from falling off from the flange portion 99b.

As shown in FIGS. 1 to 3, in the present embodiment, the fixture 40 is fixed to the end portion of the flange portion 99b on the first side W1 in the width direction. The fixture 40 is formed in a hollow shape having an internal space 41 and an opening 42 communicating with the internal space 41. For example, the fixture 40 is formed in a C shape that is angular when viewed from the longitudinal direction L. The fixture 40 has an upper jaw portion 43u, a lower jaw portion 43d arranged at a position downwardly separated from the upper jaw portion 43u, and a pair of jaw connecting portions 46 connecting the upper jaw portion 43u and the lower jaw portion 43d. ing. In the present embodiment, each of the upper jaw portion 43u and the lower jaw portion 43d extends in the width direction W and is arranged parallel to each other. The upper jaw portion 43u and the lower jaw portion 43d are arranged apart from each other in the vertical direction, and the ends of the first side W1 in the width direction are connected by the jaw connecting portion 46. The jaw connecting portion 46 is formed at each of both ends of the upper jaw portion 43u in the longitudinal direction L, and is formed at each of both ends of the lower jaw portion 43d in the longitudinal direction L (see also FIG. 4). Further, the pair of jaw connecting portions 46 are formed at the ends of the first side W1 in the width direction in each of the upper jaw portion 43u and the lower jaw portion 43d. A contact wall 46a is formed at the end of the second side W2 in the width direction in each of the pair of jaw connecting portions 46. With the fixture 40 fixed to the flange portion 99b, each of the pair of contact walls 46a is in contact with the end of the first side W1 in the width direction of the flange portion 99b.

For example, the opening 42 is composed of an upper jaw portion 43u, a lower jaw portion 43d, and a jaw connecting portion 46. In the present embodiment, the opening 42 is formed by an upper jaw portion 43u arranged above, a lower jaw portion 43d arranged below, and a pair of jaw connecting portions 46 arranged apart from each other in the longitudinal direction L. It is formed in a rectangular shape when viewed from the width direction W. The opening 42 communicates with the internal space 41.

In the present embodiment, the upper jaw portion 43u is arranged above the flange portion 99b and the lower jaw portion 43d is arranged below the flange portion 99b in a state where the fixture 40 is fixed to the flange portion 99b. In other words, the fixture 40 is fixed to the flange portion 99b while sandwiching the flange portion 99b from the vertical direction.

As shown in FIGS. 2 and 3, in the present embodiment, the upper jaw portion 43u is a plate-shaped upper plate portion 44u arranged along the upper surface of the flange portion 99b and the upper plate portion 44u in the longitudinal direction L. It has a pair of upper wall portions 45u that project downward from each of both end portions. Further, the upper jaw portion 43u has a fastening hole 48 that penetrates the upper plate portion 44u in the vertical direction. The inner peripheral surface of the fastening hole 48 is threaded. By screwing the fastening bolt 97 into the fastening hole 48, the fixture 40 is fixed to the flange portion 99b (see FIGS. 1 and 3).

In the present embodiment, the lower jaw portion 43d is a pair of a plate-shaped lower plate portion 44d arranged along the bottom surface of the flange portion 99b and a pair of lower plate portions 44d projecting upward from both ends in the longitudinal direction L. It has a lower wall portion 45d and a pair of contact pieces 47 formed by bending along the horizontal direction from the upper end portions of the pair of lower wall portions 45d. Each of the pair of contact pieces 47 is formed parallel to the bottom surface of the flange portion 99b. With the fixture 40 fixed to the flange portion 99b, each of the pair of contact pieces 47 is in contact with the bottom surface of the flange portion 99b. In other words, the fixture 40 is formed by screwing the fastening bolt 97 into the fastening hole 48 provided in the upper plate portion 44u in a state where each of the pair of contact pieces 47 is in contact with the bottom surface of the flange portion 99b. Is fixed to the flange portion 99b. Further, the lower jaw portion 43d has a hanging hole 49 penetrating the lower plate portion 44d in the vertical direction. A screw is cut on the inner peripheral surface of the hanging hole 49, and a hanging tool 98 connected to a hanging object (for example, an electric device, an air conditioner, etc.) is inserted into the hanging hole 49. .. A screw is cut on the outer peripheral surface of the hanging tool 98, and the hanging tool 98 is suspended and supported by the fixing tool 40 by screwing the hanging tool 98 into the hanging hole 49. At this time, a part of the hanging tool 98 is arranged in the internal space 41. For example, a hanging bolt or the like is used as the hanging tool 98.

It is not necessary that the inner peripheral surface of the hanging hole 49 is threaded. In this case, it is preferable that a pair of nuts are attached so as to sandwich the lower plate portion 44d from the vertical direction with the hanging tool 98 inserted in the hanging hole 49. Specifically, one of the pair of nuts is attached to the portion of the hanger 98 that is arranged between the bottom surface of the flange portion 99b and the lower plate portion 44d, and the remaining one of the pair of nuts is attached. , It is preferable to attach it to a portion of the hanger 98 that is arranged below the lower plate portion 44d. As a result, the hanging tool 98 is suspended and supported by the fixing tool 40.

As shown in FIG. 2, the internal space 41 is formed inside the fixture 40. In the present embodiment, the internal space 41 is a space surrounded by the upper jaw portion 43u, the lower jaw portion 43d, and the pair of jaw connecting portions 46. More specifically, in the internal space 41, the vertical region is partitioned by the upper plate portion 44u and the lower plate portion 44d, the longitudinal region L is partitioned by the pair of jaw connecting portions 46, and the width direction W region. Is a rectangular parallelepiped space formed so as to have the same length in the width direction W of the upper plate portion 44u and the lower plate portion 44d. As described above, the internal space 41 communicates with the opening 42. In the present embodiment, the internal space 41 communicates with the outside of the fixture 40 in the width direction W. Further, as described above, a part of the hanging tool 98 is arranged in the internal space 41.

As shown in FIGS. 1 to 3, the drop-off deterrent tool 1 is connected to the first locking member 20 that is locked to the fixing tool 40 and the first locking member 20, and is the other end of the flange portion 99b. A second locking member 30 that is locked to the flange is provided. The first locking member 20 and the second locking member 30 are arranged along the width direction W below the flange portion 99b. In the illustrated example, the first locking member 20 is arranged on the first side W1 in the width direction, and the second locking member 30 is arranged on the second side W2 in the width direction. In the present embodiment, the first locking member 20 and the second locking member 30 are connected so as to be relatively movable along the width direction W.

The first locking member 20 mainly regulates the movement of the fixture 40 to the first side W1 in the width direction in a state of being locked to the fixture 40. The first locking member 20 also restricts the downward movement of the fixture 40 in a state of being locked to the fixture 40. In the present embodiment, as shown in FIGS. 1 to 3, the first locking member 20 is locked to the end edge 42a of the fixture 40 through the internal space 41 of the fixture 40 along the width direction W. It is configured to do. More specifically, the first locking member 20 passes through a region of the internal space 41 below the flange portion 99b from the second side W2 in the width direction toward the first side W1 in the width direction, and the lower plate portion. It is locked to the edge 42a, which is the end of the first side W1 in the width direction of 44d. In this way, by locking the first locking member 20 to the end edge 42a of the fixture 40 through the internal space 41 of the fixture 40, even in a situation where there is no space around the fixture 40. The dropout deterrent 1 can be attached.

As shown in FIGS. 2 and 4, the first locking member 20 has an insertion portion 25 through which the suspender 98 is inserted in the internal space 41. As shown in FIGS. 1 and 3, the hanging tool 98 inserts the insertion portion 25 in the internal space 41 in a state where the hanging tool 98 is suspended and supported by the fixing tool 40. Since the hanger 98 inserts the insertion portion 25, the first locking member 20 and the hanger 98 do not interfere with each other. In the present embodiment, as shown in FIG. 2 and the like, the insertion portion 25 is composed of a notch formed along the width direction W from one end portion of the first locking member 20 in the width direction W. In the illustrated example, the cutout portion as the insertion portion 25 is formed by being cut out from the end portion of the first side W1 in the width direction of the first locking member 20 toward the second side W2 in the width direction.

In the present embodiment, the first locking member 20 has a locking arm 22 that is locked to the fixture 40. For example, the locking arm 22 is formed in a straight line along the width direction W. A locking portion 24 that locks to the end edge 42a of the fixture 40 is formed at the tip of the locking arm 22. In the illustrated example, the locking portion 24 is formed at the end of the locking arm 22 on the first side W1 in the width direction. Further, the locking portion 24 is formed in a hook shape along the plate surface. The locking portion 24 has an inclined surface 24a formed so as to incline upward from the second side W2 in the width direction toward the first side W1 in the width direction. By having such an inclined surface 24a, the locking portion 24 can support the fixture 40 from diagonally below. As shown in FIGS. 1 and 3, the locking portion 24 is locked to the edge 42a in a state of being in contact with the edge 42a of the fixture 40. When the first locking member 20 is pulled toward the second side W2 in the width direction, an upward force and a force toward the second side W2 in the width direction act on the edge 42a that abuts on the locking portion 24. As a result, the movement of the fixture 40 to the first side W1 in the width direction and the downward movement are restricted, and the fixture 40 can be prevented from falling off. In the present embodiment, as shown in FIG. 3, the length of the inclined surface 24a in the vertical direction is formed to be longer than the thickness of the lower plate portion 44d. Therefore, the locking portion 24 can be reliably brought into contact with the edge 42a. Further, the vertical length of the locking arm 22 is formed to be shorter than the vertical length between the bottom surface of the flange portion 99b and the lower plate portion 44d. As a result, the locking arm 22 moves between the bottom surface of the flange portion 99b and the lower plate portion 44d from the second side W2 in the width direction to the first side W1 in the width direction, and passes through the internal space 41 of the fixture 40. It is possible.

In the present embodiment, the locking arm 22 as described above is provided separately at two locations in the longitudinal direction L of the shaped steel material 99. That is, the first locking member 20 has a pair of locking arms 22 that are provided apart along the longitudinal direction L of the shaped steel member 99 and are respectively locked to the fixture 40. Each of the pair of locking arms 22 is locked to the end edge 42a of the fixture 40 by the locking portion 24. By locking to the fixture 40 with a pair of locking arms 22, the tension generated by the tension for attaching the drop-off inhibitor 1 (hereinafter referred to as the tensile tension) can be dispersed to each locking arm 22 and withstands resistance. The loadability can be improved. In the present embodiment, the pair of locking arms 22 are arranged on both sides of the hanger 98 in the longitudinal direction L. By arranging the pair of locking arms 22 so as to sandwich the hanger 98 in the longitudinal direction L in this way, the tensile tension can be supported in a well-balanced manner in the longitudinal direction L. Therefore, unlike the case where the tensile tension is biasedly supported by one of the pair of locking arms 22, it is possible to suppress the occurrence of inclination of the fixture 40. Here, at a position where the distances L in the longitudinal direction from each of the pair of locking arms 22 to the hanger 98 are equal (in other words, a position symmetrical with respect to the hanger 98 in a plan view), the pair of engagement members. It is preferable that the stop arm 22 is arranged. According to this configuration, the tensile tension can be supported in the longitudinal direction L in a more balanced manner.

In the present embodiment, as shown in FIG. 3 and the like, the first locking member 20 has a main body plate portion 21 arranged along the bottom surface of the flange portion 99b and along the width direction W. Further, as shown in FIG. 4 and the like, the first locking member 20 has a pair of facing plate portions 26 bent and formed at both ends of the main body plate portion 21. In the present embodiment, the pair of facing plate portions 26 are formed at both ends of the main body plate portion 21 in the longitudinal direction L. The pair of locking arms 22 are composed of a pair of facing plate portions 26.

As shown in FIG. 3 and the like, since the main body plate portion 21 is arranged along the flange portion 99b, each of the pair of opposing plate portions 26 formed by bending the main body plate portion 21 is a main body. It has a shape that stands up from the plate portion 21. In the present embodiment, each of the pair of facing plate portions 26 has an upright shape along the vertical direction. In the present embodiment, the main body plate portion 21 and the facing plate portions 26 are orthogonal to each other. As shown in FIG. 4, the pair of facing plate portions 26 are formed so as to face each other in the longitudinal direction L. Further, since each of the pair of facing plate portions 26 is formed by bending both end portions of the main body plate portion 21, the length of each of the pair of opposing plate portions 26 in the longitudinal direction L is the main body plate portion. It is equal to the thickness of 21.

As shown in FIG. 4, in the present embodiment, the lengths of the pair of facing plate portions 26 in the longitudinal direction L are the hanger 98 (not shown in FIG. 4) and the inside of the fixture 40 in the longitudinal direction L. It is formed shorter than the length between the inner side surface 40f of the fixture, which is the surface of the fixture. Therefore, it is possible to insert the pair of locking arms 22 into the internal space 41 so that the pair of locking arms 22 sandwich the hanger 98 in the longitudinal direction L. According to this configuration, even when the distance between the hanger 98 and the inner side surface 40f of the fixture in the longitudinal direction L is narrow, the locking arm 22 and the hanger 98 are prevented from interfering with each other. The arm 22 can be passed through the internal space 41. At this time, it is preferable that there is a gap between the arm outer surface 22f, which is the surface of each of the pair of locking arms 22 facing outward in the longitudinal direction L, and the fixture inner side surface 40f. According to this configuration, the locking arm 22 can be smoothly inserted into the internal space 41 without bringing the locking arm 22 into contact with the fixture 40.

In the present embodiment, as shown in FIGS. 2 and 3, the first locking member 20 has a connecting plate portion 23 formed along the vertical direction, and the connecting plate portion 23 has a second engagement. The end portion of the stop member 30 opposite to the locking end to the flange portion 99b in the width direction W is connected. More specifically, the end portion of the second locking member 30 on the first side W1 in the width direction is connected to the lower portion of the connecting plate portion 23. A main body plate portion 21 extending along the width direction W and a pair of locking arms 22 are continuously formed at the upper end portion of the connecting plate portion 23. That is, the portion extending in the width direction W of the first locking member 20 (main body portion) and the portion extending in the width direction W of the second locking member 30 (main body portion) are at different positions in the vertical direction. It is in a state of being placed in. As a result, for example, the first locking member 20 and the second locking member 30 can be easily moved relative to each other along the width direction W. In the present embodiment, the connecting plate portion 23 is formed with a connecting hole 23a that penetrates the connecting plate portion 23 in the width direction W. The second locking member 30 is connected to the first locking member 20 in a state of being inserted through the connecting hole 23a. For example, the inner peripheral surface of the connecting hole 23a is threaded so that the width adjusting portion 33 of the second locking member 30, which will be described later, can be screwed.

As shown in FIGS. 2 and 3, for example, the second locking member 30 is formed by bending a rod-shaped member. In the present embodiment, the second locking member 30 is locked to the other end of the flange portion 99b located on the side opposite to one end of the flange portion 99b to which the fixture 40 is fixed. And a width adjusting portion 33 which is connected to the connecting plate portion 23 of the first locking member 20 and adjusts the entire width of the drop-off preventive tool 1. In the present embodiment, the second locking member 30 has a bent portion 32 formed between the other end side locking portion 31 and the width adjusting portion 33. In the illustrated example, the bent portion 32 is formed as a portion that bends the main body portion of the second locking member 30 arranged along the width direction W diagonally upward toward the first side W1 in the width direction. As a result, as shown in FIG. 3, the second locking member 30 is configured to be locked to the flange portion 99b. In the present embodiment, the portion of the second locking member 30 that comes into contact with the end of the flange portion 99b on the second side W2 in the width direction is the other end side locking portion 31.

As shown in FIGS. 2 and 3, the width adjusting portion 33 is provided at the end of the second locking member 30 on the first side W1 in the width direction. For example, a screw is cut on the outer circumference of the width adjusting portion 33. In the present embodiment, as shown in FIG. 3, the width adjusting portion 33 is attached with the nut 96a from the first side W1 in the width direction in a state where the connecting hole 23a of the connecting plate portion 23 is penetrated in the width direction W. , Connected to the connecting plate portion 23. In the present embodiment, the width adjusting portion 33 is formed over a predetermined length from the end portion of the first side W1 in the width direction of the second locking member 30. In other words, the second locking member 30 is threaded from the end of the first side W1 in the width direction over a predetermined length. As a result, by adjusting the tightening and loosening of the nut 96a, the first locking member 20 and the second locking member 30 move relative to each other along the width direction W. More specifically, by tightening the nut 96a, the first locking member 20 moves to the second side W2 in the width direction when viewed from the second locking member 30. By loosening the nut 96a, the first locking member 20 moves to the first side W1 in the width direction when viewed from the second locking member 30. In other words, by adjusting the tightening and loosening of the nut 96a, the first locking member 20 and the second locking member 30 are relatively moved, and in the width direction W of the drop-off preventive tool 1 including these. The overall length can be adjusted. In this way, by tightening the nut 96a and contracting the fall-off preventive tool 1 in the width direction W, the fall-off preventive tool 1 can be firmly fixed to the flange portion 99b.

The second locking member 30 may be composed of two or more members. For example, the second locking member 30 is arranged on the first side W1 in the width direction and is connected to the first locking member 20, and is arranged on the second side W2 in the width direction of the connecting member and is flanged. It may be configured to include a locking member that locks to the end of the second side W2 in the width direction in 99b.

In the present embodiment, as shown in FIG. 5, the first locking member 20 is formed by processing one plate-shaped member 20P. The plate-shaped member 20P is formed in a rectangular shape having a pair of long side portions facing each other and a pair of short side portions facing each other. The cutout portion 25P is formed by cutting out a part of one plate-shaped member 20P into a predetermined shape. At this time, the portions of the plate-shaped member 20P located on both sides of the notch portion 25P in the longitudinal direction L are notched so as to have a shape corresponding to the shape of the pair of locking arms 22 having the locking portions 24 at the tip portions. Part 25P is formed. From this state, the pair of facing plate portions 26 and the main body plate portion 21 are formed by bending each of the pair of long side portions of the plate-shaped member 20P along the extending direction of the long side portions. Finally, the main body plate portion 21 and the pair of facing plate portions 26 are bent at a predetermined position in the extending direction of the long side portion (a predetermined position in the width direction W) along the extending direction of the short side portion of the plate-shaped member. By doing so, the connecting plate portion 23 is formed. The pair of facing plate portions 26 are continuously formed over the main body plate portion 21 and the connecting plate portion 23. Each facing plate portion 26 functions as a kind of rib with respect to the main body plate portion 21 and the connecting plate portion 23 which are continuously and integrally formed. Thereby, the strength of the first locking member 20 can be increased. Even in the case where the insertion portion 25 of the first locking member 20 is formed between the pair of locking arms 22 facing each other in the longitudinal direction L as in the present embodiment, the production thereof. When the step of forming the cutout portion 25P by cutting out a part of the plate-shaped member 20P in the step is performed, the insertion portion 25 is considered to correspond to the “notch portion”.

In the present embodiment, the first locking member 20 corresponds to the "first locking member (of the dropout inhibitor 1)" and the "locking member". Further, the second locking member 30 corresponds to the "second locking member (of the dropout inhibitor 1)" and the "other end locking member".

[Other Embodiments]
Next, other embodiments of the dropout deterrent device 1 will be described.

(1) In the above embodiment, an example in which the hanging tool 98 is screwed into the hanging hole 49 formed so as to penetrate in the vertical direction on the second side W2 in the width direction of the lower plate portion 44d has been described. However, the present invention is not limited to such examples. That is, as shown in FIG. 3 and the like, the fixture 40 is provided with a hole into which the suspending tool 98 can be screwed, in addition to the hanging hole 49. Specifically, the fixture 40 has an upper suspension hole 49u that penetrates the upper plate portion 44u in the vertical direction on the first side W1 in the width direction of the upper plate portion 44u, and the first side W1 in the width direction of the lower plate portion 44d. Has a lower hanging hole 49d that penetrates the lower plate portion 44d in the vertical direction. The upper hanging hole 49u and the lower hanging hole 49d are arranged at overlapping positions in a plan view. In the present embodiment, as shown in FIG. 6, a hanging tool 98 is provided so as to insert both the upper hanging hole 49u and the lower hanging hole 49d. Then, with the hanger 98 protruding above the fixture 40, the nut 96b is attached to the protruding portion of the hanger 98. In this way, the hanging tool 98 is suspended and supported by the fixing tool 40. At this time, in the internal space 41 of the fixture 40, the suspender 98 is in a state of inserting the insertion portion 25 of the first locking member 20. Therefore, also in this embodiment, the first locking member 20 can be locked to the end edge 42a of the fixing tool 40 through the internal space 41 while avoiding interference with the hanging tool 98 in the internal space 41. ..

(2) In the above embodiment, an example in which the pair of locking arms 22 included in the first locking member 20 are composed of a pair of facing plate portions 26 and are formed in a straight line along the width direction W. Was explained. However, the present invention is not limited to such a configuration. That is, as shown in FIG. 7, each of the pair of locking arms 22 may be formed in a polygonal line shape in which the end portion of the second side W2 in the width direction is bent, for example.

(3) In the above embodiment, an example in which the pair of locking arms 22 are formed by processing one plate-shaped member 20P has been described. However, the present invention is not limited to such a configuration. That is, as shown in FIG. 8, each of the pair of locking arms 22 may be composed of a rod-shaped member to be separately attached. In this case, the locking portion 24 may be formed as a portion for bending the main body portion of the locking arm 22. Also in this case, the insertion portion 25 is between the pair of locking arms 22.

(4) In the above embodiment, a configuration in which a pair of facing plate portions 26 are continuously formed over the main body plate portion 21 and the connecting plate portion 23 has been described as an example. However, the present invention is not limited to such a configuration. That is, as shown in FIG. 7, when the facing plate portion 26 is provided only on the main body plate portion 21 and the facing plate portion 26 is not provided on the connecting portion 23, the main body plate portion 21 and the connecting plate portion 23 are extended. The reinforcing rib portion 27 may be provided. In this case, the reinforcing rib portion 27 can be formed by, for example, a weld bead.

(5) In the above embodiment, an example has been described in which the locking portion 24 is configured to have an inclined surface 24a that inclines upward toward the first side W1 in the width direction. However, the present invention is not limited to such examples. That is, as shown in FIG. 9, the locking portion 24 is a standing extending portion 28 formed along the lower side from the end of the first side W1 in the width direction of the locking arm 22, and the standing extending portion 28. It may be composed of a width direction extending portion 29 formed from the lower end portion along the width direction second side W2. In this case, the surface of the standing extending portion 28 facing the second side W2 in the width direction comes into contact with the end edge 42a of the fixture 40, and the surface facing upward of the extending extending portion 29 in the width direction lowers the lower plate portion 44d. The locking portion 24 is locked to the fixture 40 in a state where it can be supported from the fixture 40. In this way, the locking portion 24 may be configured to support the fixture 40 from directly below.

(6) In the above embodiment, an example has been described in which the insertion portion 25 is composed of a notch formed along the width direction W from one end portion of the first locking member 20 in the width direction W. However, the present invention is not limited to such a configuration. That is, the insertion portion 25 may be a hole portion that penetrates the first locking member 20 in the vertical direction. For example, the hole portion as the insertion portion 25 is formed in the main body plate portion 21 configured to extend to the locking portion 24 along the width direction W. In this case, after the first locking member 20 is fixed to the fixture 40, the suspender 98 is inserted into the suspension hole 49 and the hole as the insertion portion 25.

(7) In the above embodiment, an example in which the first locking member 20 is configured to have a pair of locking arms 22 has been described. However, the present invention is not limited to such a configuration. That is, the first locking member 20 may be configured to have a single locking arm 22. In this case, in the internal space 41 of the fixture 40, the region where the single locking arm 22 does not exist becomes the insertion portion 25 through which the suspender 98 can be inserted. Further, the first locking member 20 may be configured to have three or more locking arms 22.

(8) In the above embodiment, an example in which the pair of locking arms 22 included in the first locking member 20 are arranged apart from each other in the longitudinal direction L has been described. However, the present invention is not limited to such examples. That is, the pair of locking arms 22 may be arranged so as to abut each other in the longitudinal direction L. In this case, in the internal space 41 of the fixture 40, the region where the pair of locking arms 22 that are in contact with each other does not exist becomes the insertion portion 25 through which the suspender 98 can be inserted.

(9) In the above embodiment, an example in which the connecting plate portion 23 included in the first locking member 20 is formed along the vertical direction has been described. However, the present invention is not limited to such examples. That is, the connecting plate portion 23 may be formed along the width direction W. In other words, the connecting plate portion 23 may be formed in a straight line continuous with the main body plate portion 21. In this case, the width adjusting portion 33 (the end portion of the first side W1 in the width direction) of the second locking member 30 connected to the connecting plate portion 23 is formed in a plate shape in which the main surface faces in the vertical direction. It is good to be there. Then, elongated holes along the width direction W are formed in both the connecting plate portion 23 and the width adjusting portion 33, and the connecting plate portion 23 and the width adjusting portion 33 are connected by bolts penetrating these elongated holes in the vertical direction. It is good if they are connected. According to this configuration, the first locking member 20 or the second locking member 30 can be slid along the width direction W, and as a result, the first locking member 20 and the second locking member 30 are included. The overall length of the dropout deterrent 1 composed of

(10) The configurations disclosed in each of the above-described embodiments can be applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. With respect to other configurations, the embodiments disclosed herein are merely exemplary in all respects. Therefore, various modifications can be made as appropriate without departing from the gist of the present disclosure.

The technique according to the present disclosure can be used for a drop-off preventive tool for preventing the fixture fixed to the flange portion of the shaped steel material from falling off and a locking member used for the drop-off preventive tool.

1: Drop-off deterrent 20: First locking member (locking member)
21: Main body plate 22: Locking arm 23: Connecting plate 23a: Connecting hole 25: Insertion 25P: Notch 26: Opposing plate 30: Second locking member (other end locking member)
40: Fixing tool 41: Internal space 42a: Edge edge 98: Hanging tool 99: Shaped steel material 99b: Flange portion L: Longitudinal direction W: Width direction

Claims (5)

The hanger is suspended in a state where at least a part of the hanger connected to the object to be suspended is arranged in the internal space while being fixed to one end of a flange portion projected along the width direction of the shaped steel material. It is a drop-out deterrent that prevents the fixture from falling off from the flange portion of the fixture to be supported.
The first locking member to be locked to the fixture,
A second locking member that is connected to the first locking member and is locked to the other end of the flange portion is provided.
The first locking member is configured to be locked to the edge of the fixture through the internal space of the fixture along the width direction, and the suspender is in the internal space. It has an insertion part to be inserted ,
The first locking member has a pair of locking arms that are spaced apart along the longitudinal direction of the shaped steel and are each locked to the fixture.
The pair of locking arms have a locking portion capable of supporting the fixture from below, and are arranged on both sides of the suspender in the longitudinal direction . The drop-out deterrent tool according to claim 1, wherein the insertion portion is formed of a notch portion formed along the width direction from one end portion in the width direction of the first locking member. The first locking member includes a main body plate portion arranged along the bottom surface of the flange portion and along the width direction, and a pair of opposing plate portions bent and formed at both ends of the main body plate portion. And
The drop-out deterrent tool according to claim 1 or 2 , wherein the pair of locking arms is composed of the pair of facing plate portions. The first locking member has a connecting plate portion formed along the vertical direction, and has a connecting plate portion.
The aspect according to any one of claims 1 to 3 , wherein an end portion of the second locking member opposite to the locking end to the flange portion in the width direction is connected to the connecting plate portion. Dropout deterrent. The hanger is suspended in a state where at least a part of the hanger connected to the object to be suspended is arranged in the internal space while being fixed to one end of a flange portion projected along the width direction of the shaped steel material. It is used as a drop-off preventive tool that prevents the supporting fixture from falling off from the flange portion, and is connected to the other end side locking member that is locked to the other end of the flange portion and at one end side of the flange portion. A locking member that is locked to the fixture.
It is configured to be locked to the edge of the fixture through the internal space of the fixture along the width direction, and has an insertion portion through which the suspender is inserted in the internal space .
It has a pair of locking arms that are spaced apart along the longitudinal direction of the shaped steel and are each locked to the fixture.
The pair of locking arms has a locking portion capable of supporting the fixing tool from below, and is a locking member arranged on both sides of the hanging tool in the longitudinal direction.

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