TWI573908B - Strip fixing member and rail fixing method - Google Patents

Description

Rail fixing member and rail fixing method

The present invention relates to a rail fixing member and a rail fixing method. More specifically, the present invention relates to a rail fixing member and a rail fixing method for fixing a rail for moving a rail moving machine such as a ceiling crane or a trolley to a truss rail for laying a rail.

A rail moving machine such as a ceiling crane or a trolley moves on a rail placed on a sill of a ceiling such as a warehouse or the like by a wheel. In order to achieve stable movement of the ceiling crane or the trolley, it is necessary to secure the rail to the truss beam.

Conventionally, a hook bolt has been used as a member for fixing a rail to a truss beam (see Patent Documents 1 and 2). The other end of the steel material forming the male thread at one end is bent in a slightly J-shape to form the hook bolt. In this hook bolt, the following fixed rail and truss beam are as follows.

First, one end of the hook bolt (the end portion forming the male thread) passes through the through hole formed in the vertical plane of the rail. Next, the other end of the hook bolt is hooked to the end edge of one of the top faces of the truss beam. Finally, after the nut is screwed and closed at one end of the hook bolt, the hook bolt is disposed in the axial direction and substantially along the top surface of the truss. In this way, the rails can be prevented from moving along the top surface of the girders by the hook bolts in a direction away from the edge of one of the girders.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Shikai Show 60-40501

[Patent Document 2] Unexamined Japanese Patent Publication No. 62-153277

Further, in the shaft-shaped member such as the hook bolt, the strength of the force in the axial direction is strong, but the direction intersecting the axial direction, that is, the strength of the force for bending the member is weak. The hook bolts are J-shaped, and the bent portions are used to hook the truss beams.

Therefore, when a force is applied to move the rail due to an earthquake or the like, the direction of the force is such that the direction of the rail away from the top surface of the truss beam (ie, the vertical direction) may of course be applied to the hook bolt to bend the hook bolt. The force (bending force), which is the direction in which the rail moves along the upper surface of the truss beam (ie, the horizontal direction), and may also exert a force on the hook bolt to bend the hook bolt (bending force) ).

As described above, the hook bolt has a weak bearing force, so that the hook bolt is simply deformed (bent) after the bending force is applied, so that the rail cannot be fixed to the truss. That is, when the load caused by the earthquake is applied to the rail, the hook bolt cannot fully carry the load regardless of the load direction, so it is also possible that the rail is deviated from the truss beam and the rail is dropped from the truss beam.

In view of the above circumstances, an object of the present invention is to provide a rail fixing member and a rail fixing method which can fix a rail to a truss beam even if a load such as an earthquake is applied to the rail.

The rail fixing member of the first aspect of the present invention fixes a rail provided on an upper surface of the top plate of the truss to a top plate of the truss beam, characterized by comprising: a connecting member mounted on an edge of the top plate of the truss beam; and an axle a connecting member that connects the connecting member and the rail; and the connecting member has a shaft member connecting portion that connects the shaft member, and an engaging groove that is recessed from the one end surface and inserted into an edge of the top plate of the truss beam is formed at one end surface .

A rail fixing member according to a second aspect of the invention is the first invention, wherein In the connecting member, between the portion of the shaft member connecting portion that is coupled to the shaft member and the engaging groove, a bending strength is formed when the force is applied in a direction in which the engaging groove is expanded, and the bending member is stronger than the shaft member. The bending strength is a small part.

A rail fixing member according to a third aspect of the invention, wherein the connecting member includes: a pair of clamping portions disposed to form the engagement groove between inner surfaces facing each other; and a coupling portion connecting the pair of clips Between the base end portions of the holding portions; and the shaft member connecting portion is provided on the outer surface of the one end portion of the pair of nip portions, and the connecting member is formed to face the front end portion of the pair of nip portions When the force is applied in the direction of disengagement, the bending strength of the connecting portion of one of the pair of holding portions and the connecting portion is smaller than the bending strength of the shaft member.

According to a third aspect of the invention, in the rail fixing member of the present invention, the shaft member connecting portion is a wall portion provided on one of the pair of holding portions on the outer surface of the front end portion, and the shaft member connecting portion is formed with the shaft The through hole is inserted into the member, and the shaft member connecting portion is inclined such that the front end thereof is located on the base end side of the pair of holding portions with respect to the base end thereof.

According to a third aspect of the invention, in the rail fixing member of the present invention, the shaft member connecting portion is a wall portion provided on one of the pair of holding portions on the outer surface of the front end portion, and the shaft member connecting portion is formed at the shaft member connecting portion. The through hole is inserted into the through hole, and the surface on the proximal end side of the pair of holding portions is formed as a curved surface which is convex toward the front end side of the pair of holding portions.

The rail fixing member according to any one of the first to fifth aspects of the present invention, wherein the shaft member connecting portion is formed with a through hole through which the shaft member can be inserted, and the through hole is formed to: engage the engaging member The length of the groove expansion is longer than the shaft diameter of the shaft member.

According to a sixth aspect of the invention, in the rail fixing member according to the sixth aspect of the present invention, a rail-side through hole through which the shaft member can be inserted is formed in a vertical portion of the rail, and the through hole of the shaft member connecting portion is formed as follows: a central axis thereof to the pair of clamping portions The distance of the inner surface of the other side is equal to or shorter than the distance from the lower surface of the top plate of the truss to the central axis of the rail side through hole.

The rail fixing member according to any one of the first to seventh aspects of the present invention, wherein the sliding plate is disposed between the upper surface of the top plate of the truss and the rail, and the friction between the sliding plate and the rail It is smaller than the top surface of the top plate of the truss.

(track fixing method)

The rail fixing method of the ninth invention fixes a rail provided on an upper surface of the top plate of the truss to a top plate of the truss by a fixing member, characterized in that between the top plate of the truss and the rail a rail member is fixed to the upper surface of the top plate and the sliding plate having a small friction with the rail, and the rail is fixed to the rail by the fixing member according to the first aspect of the invention. The top of the beam.

According to the first aspect of the invention, if the end edge of the top plate of the truss beam enters the engaging groove of the connecting member, and the rail member and the connecting member are coupled by the shaft member, the rail can be fixed to the top plate of the truss beam, so that the fixed rail can be reduced. The working hours of the roof of the beam. Further, when the force for moving the rail is applied, the force can be carried by the shaft member and the joint member, so that the performance of the fixed rail on the top plate of the truss can be improved.

According to the second aspect of the invention, after the force for lifting the rail from the top plate is applied, the connecting member is deformed before the bending of the shaft member, so that the force for bending the shaft member can be reduced. In this way, the force of moving the rails can be countered, and the performance of the fixed rails on the top plate of the truss beams can be maintained.

According to the third aspect of the invention, the end edge of the top plate of the truss beam enters a gap (engagement groove) between one of the nip portions of the connecting member, and the rail member and the connecting member are coupled by the shaft member, thereby fixing the rail to the truss beam roof. After the force for moving the rail is applied, the joint portion between the nip portion and the joint portion before the bending of the shaft member is bent, and the direction of the force of the rail member stretching the joint member via the shaft member can be reduced, and the shaft of the shaft member The angle of the direction. In this way, even if a force for moving the rail is applied, the force applied to the shaft member to bend the shaft member can be reduced, so that the force for moving the rail can be countered, and the fixed rail can be maintained on the truss. The performance of the roof.

According to the fourth and fifth inventions, when the force for moving the rail is applied, it is easy to reduce the force acting on the shaft member and bending the shaft member.

According to the sixth aspect of the invention, even if a force for moving the rail is applied, the force applied to the shaft member can be further reduced, and the shaft member can be bent to act.

According to the seventh aspect of the invention, when the rail member and the connecting member are coupled by the shaft member, the axial direction of the shaft member can be made parallel or slightly upward with the upper surface of the top plate of the truss beam. As described above, when the force for moving the rail is applied, it is easy to reduce the force acting on the shaft member to bend the shaft member.

According to the eighth aspect of the invention, the rail slides on the sliding plate, so that when the force for moving the rail is applied along the top plate of the truss, the force for raising the rail from the top plate can be suppressed. As described above, when the force for moving the rail is applied to the top plate of the truss beam, the force for bending the shaft member or the connecting member can be suppressed, so that the shaft member or the connecting member can have a predetermined durability.

(track fixing method)

According to the ninth invention, the rail slides on the sliding plate, so that when the force for moving the rail is applied along the top plate of the truss beam, the force for lifting the rail from the top plate can be reduced. As described above, when the force for moving the rail is applied to the top plate of the truss beam, the force for bending the fixing member can be suppressed, so that it can have a predetermined durability. Moreover, since the fixing member of the first aspect of the invention is used as the fixing member, the performance of fixing the rail to the top plate of the truss in advance can be improved.

RU‧‧‧ vertical wall

Rh‧‧‧through hole

C1‧‧‧ corner

G‧‧‧Aisle beam

GP‧‧‧ top board

R‧‧‧ rails

D‧‧‧Distance

1‧‧‧ rail fixing members

10‧‧‧Connected components

11a‧‧‧ end face

11b‧‧‧ face

11t‧‧‧ upper surface

11c‧‧‧ sloped surface

11h‧‧‧ card groove (gap)

11‧‧‧ Body Department

Inside 12a, 13a‧‧

12‧‧‧Clamping Department

13p‧‧‧Contact protrusion

13‧‧‧Clamping Department

14a‧‧‧ inside

14‧‧‧Connecting Department

15a‧‧‧ face

15‧‧‧Axis member joint

15h‧‧‧through hole

20a‧‧‧ head

20b‧‧‧ male thread

20‧‧‧Axis components

21‧‧‧ nuts

25A, 25B, 25C‧‧ ‧ sliding plate

25h‧‧‧ gap

25a‧‧‧ Body Department

25b‧‧‧Bend

B‧‧‧ plates

HB‧‧‧Hook bolt

IS‧‧‧I steel

Fig. 1 is a schematic cross-sectional view showing a state in which the rail R is attached to the aisle G by the rail fixing member 1 of the embodiment.

Fig. 2 is a schematic plan view showing a state in which the rail R is attached to the aisle G by the rail fixing member 1 of the embodiment.

Fig. 3 is a schematic block diagram showing the connection members 10 of the rail fixing members 1 (A) and (B).

Fig. 4 is a schematic block diagram showing the connection members 10 of the other rail fixing member 1 in (A) and (B).

5(A) and (B) are schematic cross-sectional views showing a state in which the rail R is attached to the aisle G by the slide plate 25.

Fig. 6 is a schematic plan view showing a state in which the rail R is attached to the aisle G by the slide plate 25.

7(A), (B), (C), and (D) are schematic plan views of another connecting member 10.

Fig. 8 is an explanatory view showing a state in which the fixing member of the embodiment of the test is fixed, (A) is a fixed state of the horizontal load test, and (B) is a fixed state of the vertical load test.

[Fig. 9] is an explanatory diagram of the fixed state of the hook bolt in the test, (A) is a horizontal load test In the fixed state, (B) is the fixed state of the vertical load test.

The rail fixing member of the present invention is used for fixing a traveling rail such as a ceiling crane or a trolley, and fixing the rail on the upper surface of the top plate of the truss beam.

The rail fixed by the rail fixing member of the present invention is not particularly limited. It is preferred to have a wall that is erected on the upper surface of the top plate of the truss beam (in other words, a wall that is perpendicular to the upper surface of the top plate of the truss beam). As the rail which is fixed by the rail fixing member of the present invention, for example, a rail which is formed in a generally I-shaped cross section may be mentioned.

Further, as the "bow beam" in the present specification, for example, a girders having a predetermined width as shown in FIG. 1 and a so-called aisle beam may be mentioned. In the present specification, the term "the beam" includes the concept of a structure having the coupling member 10 that can engage the rail fixing member 1, and the configuration is not particularly limited.

Hereinafter, as shown in FIG. 1, a case where the rail R formed in a substantially I-shaped cross section is fixed to the aisle beam G having the top plate GP will be described as a representative.

(Description of rail fixing member 1)

First, before explaining the rail fixing member 1, the structure of the rail fixing member 1 will be briefly described, and the rail R fixing member 1 will be fixed to the rail R.

In Fig. 1, the symbol GP indicates the top plate of the aisle beam G. Further, reference numeral R denotes a rail in which the rail fixing member 1 of the present embodiment is fixed to the top plate GP of the aisle G. The rail R is formed in a substantially I-shaped cross section, and a through hole Rh is formed in a portion of the vertical wall (hereinafter referred to as a vertical wall RU).

As shown in Fig. 1, one end of the shaft member 20 of the rail fixing member 1 of the present embodiment is inserted into the through hole Rh of the rail R. The shaft member 20 has a diameter substantially equal to the inner diameter of the through hole Rh, at one end thereof, The head portion 20a that cannot pass through the through hole Rh is formed.

On the other hand, the other end of the shaft member 20 is inserted into the through hole 15h formed in the shaft member connecting portion 15 of the coupling member 10. A male thread 20b is formed at the other end of the shaft member 20. Further, the nut 21 is screwed to a portion of the male screw 20b of the shaft member 20 that protrudes from the shaft member connecting portion 15 (the portion closer to the right side of the shaft member connecting portion 15 in Fig. 1).

As shown in FIG. 1 , in the connection member 10 , the base end of the shaft member coupling portion 15 is coupled to the main body portion 11 of the coupling member 10 . The main body portion 11 has a groove-shaped space (hereinafter referred to as an engagement groove 11) that is recessed from an end surface (an end surface on the left side in FIG. 1 , hereinafter referred to as a front end surface) on the end side of the proximal end of the connection shaft member coupling portion 15 . That is, the main body portion 11 is formed in a slightly C-shaped (or U-shaped) view. The engaging groove 11 of the main body portion 11 is inserted from the end portion of the top plate GP of the aisle beam G from the front end surface side.

The structure is as described above. Therefore, when the nut 21 of the male screw 20b of the screw shaft member 20 is locked, the rail member 20 can be connected to the rail member 20 and the shaft member connecting portion 15 of the joint member 10.

When the nut 21 is locked, in the joint member 10, the bottom surface of the engaging groove 11 of the main body portion 11 is in contact with the end surface of the top plate GP of the aisle beam G. Thus, the main body portion 11 of the joint member 10 is fixed to the top plate GP of the aisle beam G.

That is, by locking the nut 21 of the male screw 20b of the screw shaft member 20, the shaft member 20 and the joint member 10 can be used to fix the rail R to the top plate GP of the aisle G.

Further, in general, a plurality of the rail fixing members 1 of the present embodiment are mounted in the axial direction of the rail R, but the arrangement thereof is not particularly limited. However, as shown in Fig. 2, when the rail fixing members 1 of the present embodiment are mounted in a staggered arrangement at a predetermined interval in the axial direction of the rail R, the rails R can be stably fixed to the aisle beams. G's top board GP.

In the above-described example, the case where the head portion 20a is located on the rail R side and the other end is inserted into the through hole 15h of the shaft member connecting portion 15 will be described. However, in the shaft member 20, of course, the head portion 20a may be located on the side of the shaft member connecting portion 15, and the other end may be inserted into the through hole Rh of the rail R.

(Description of rail fixing member 1)

Next, the rail fixing member 1 of the present embodiment will be described in detail.

(shaft member 20)

First, in the shaft member 20, the shaft portion is formed to have the thickness of the through hole Rh through which the rail R can be inserted and the through hole 15 of the shaft member connecting portion 15. Further, in the shaft member 20, as described above, the head portion 20a which is not sized to pass through the through hole Rh of the rail R or the through hole 15 of the shaft member connecting portion 15 is formed at one end, and the male screw 20b is formed at the other end. For example, as the shaft member 20, a bolt can generally be used.

Further, the shaft member 20 may be connected between the rail R and the shaft member connecting portion 15, and may be used to form a male thread at both ends in addition to the above-described structure.

Further, in the above example, the case where the shaft member 20 is inserted into the through hole Rh of the rail R and the through hole 15 of the shaft member connecting portion 15 has been described. However, the method in which the shaft member 20 connects the rail R and the shaft member coupling portion 15 is not particularly limited. When the both ends of the shaft member 20 are attached to the rail R and the shaft member connecting portion 15, respectively, and the force for disengaging the rail R from the top plate GP (in other words, the force for tilting the rail R) is applied, the shaft member 20 is applied. It is sufficient to apply a force for stretching the shaft member 20 in the axial direction. For example, one end of the shaft member 20 may be fixed to the shaft member coupling portion 15 by welding or the like. Further, in the shaft member 20, the other end thereof may be fixed to the vertical wall RU of the rail R by welding or the like.

(connection member 10)

As shown in FIGS. 1 and 3, the connecting member 10 is formed by a body portion 11 which is formed in a slightly C-shape (or a U-shape) from a side view, and is disposed on the surface of the body portion 11 standing upright. A wall (or plate) shaft member coupling portion 15.

As shown in FIGS. 1 and 3, the main body portion 11 is composed of a pair of sandwiching portions 12 and 13, and a connecting portion 14 that connects the pair of sandwiching portions 12 and 13. Further, in FIGS. 1 and 3, the shaft member connecting portion 15 is erected in the pair of holding portions 12, 13 and is located outside the upper holding portion 12.

The pair of clamping portions 12, 13 are formed such that the inner faces 12a, 13a facing each other are parallel to each other. The part of the plate. The pair of holding portions 12 and 13 are formed to form the engaging grooves 11 between the inner faces 12a and 13a facing each other. Specifically, a pair of nips 12, 13 are formed, and the distance between the inner faces 12a, 13a (i.e., the height of the engaging groove 11) is thicker than the thickness of the top plate GP of the aisle beam G.

Further, as shown in FIGS. 1 to 3, in the pair of nip portions 12 and 13, the front end (the left end in FIGS. 1 to 3) is formed with an opening, but the base end portion thereof (FIGS. 1 to 3) The right end portion is connected by the connecting portion 14.

That is, in the main body portion 11, between the pair of holding portions 12 and 13, the engaging groove 11 whose bottom surface 14a of the connecting portion 14 is the bottom is continuously formed from the front ends of the pair of holding portions 12 and 13. In other words, when the main body portion 11 is formed and viewed from the side (when viewed from the left-right direction in FIG. 3(B)), the pair of sandwiching portions 12 and 13 and the connecting portion 14 are slightly C-shaped (or U-shaped). .

In the main body portion 11, the corner C1 (hereinafter referred to simply as the angle C1) connecting the sandwiching portion 12 and the connecting portion 14 is cut away to form a slope 11c. The inclined surface 11c is formed so that the distance D between the inner surface 12a of the nip portion 12 and the inner surface 14a of the joint portion 14 is shorter than the thickness of the pair of nip portions 12, 13 or the joint portion 14. That is, when the body portion 11 is formed and the bending force is applied to the respective portions thereof in the thickness direction thereof, the bending strength of the portion of the angle C1 is the weakest (that is, the portion is the fastest bent).

Therefore, after the force applied to the front ends of the pair of nips 12 and 13 is released from the main body portion 11, the main body portion 11 is first bent at a portion of the angle C1 and deformed. Further, although the bending strength of the portion where the angle C1 is formed is smaller than the bending strength of the shaft member 20, the reason will be described in detail later. The portion of the angle C1 corresponds to the portion of "the bending strength when the force is applied in the direction in which the engagement groove is expanded in the request 2" is smaller than the bending strength of the shaft member.

As shown in FIGS. 1 and 3, a shaft-shaped (or plate-shaped) shaft member coupling portion 15 is provided on the outer surface of the front end portion of the main body portion 11 (the upper surface in FIGS. 1 and 3). . In other words, the shaft member connecting portion 15 is provided on the upper surface of the end portion on the side opposite to the angle C1 of the nip portion 12.

The shaft member connecting portion 15 is formed with a through hole 15h as described above. The through hole 15h is formed such that the axial direction thereof is along the direction from the opening of the engaging groove 11 toward the inner surface 14a of the coupling portion 14 (the direction of the arrow a in FIGS. 1 and 3, hereinafter referred to as the axial direction of the engaging groove 11). .

Further, the shaft member connecting portion 15 is formed, and the crucible is also the same as the pair of grip portions 12, 13 or the joint portion 14, and has a thickness thicker than the distance D.

Since the shape is as described above, the rail fixing member 1 of the present embodiment can be effective as described below.

First, as shown in FIG. 1, in a state where the rail member 20 and the connecting member 10 fix the rail R and the top plate GP of the aisle G, a force for moving the rail R in the left direction along the top plate GP is applied (that is, FIG. 1 The force that causes the rail R to move horizontally to the left). At this time, the shaft member 20 is applied with a force to stretch the shaft member 20 in the axial direction thereof. Further, since the coupling member 10 is pulled in the left direction by the shaft member 20, a force that abuts against the inner surface 14a of the coupling portion 14 is applied to the coupling member 10. That is, even if a force for horizontally moving the rail R is applied, the force for bending the shaft member 20 is not applied, so the rail fixing member 1 of the present embodiment can carry a horizontal load applied to the rail R.

As shown in FIG. 1, in a state in which the rail member 20 and the connecting member 10 fix the rail R and the top plate GP of the aisle G, the force for disengaging the rail R from the top plate GP is applied (that is, the upward stretching in FIG. 1) At the time of the force of the rail R, a force for bending the shaft member 20 and the joint member 10 is applied.

Specifically, the force of stretching the shaft member 20 in the axial direction is applied to the shaft member 20 via the rail R, and the force is bent upward with the position of the shaft member connecting portion 15 as a fulcrum. On the other hand, the shaft member 20 applies a force to the joint member 10 to support the shaft member connecting portion 15 upward. In other words, the main body portion 11 is biased to release the front ends of the pair of nip portions 12, 13 from each other (even if the engagement groove 11h is expanded).

Thus, in the shaft member 20 and the joint member 10, the portion where the bending strength is the smallest starts to be deformed. That is, in the body portion 11 of the joint member 10, the portion of the corner C1 is bent and deformed as quickly as possible.

Further, when the main body portion 11 is deformed to some extent, the direction of the force of the rail R stretching the shaft member 20 becomes smaller than the angle between the axial direction of the shaft member 20. Thus, even if the force for detaching the rail R from the top plate GP of the aisle beam G is applied, the force applied to the shaft member 20 can be reduced, and the shaft member 20 can be bent and acted upon. force.

Further, in the shaft member 20, since the strength of the stretching in the axial direction is stronger than the strength of the bending, it is possible to prevent the rail member 20 from being damaged by the damage of the shaft member 20 and the fixing of the rail R and the connecting member 10. That is, the fixed deviation of the rail R from the top plate GP of the aisle G can be prevented. In other words, the rail fixing member 1 of the present embodiment can maintain the performance of fixing the rail R to the top plate GP of the aisle G against the force of the rail R being separated from the top plate GP of the aisle beam G.

As described above, in the rail fixing member 1 of the present embodiment, even if the force (the force in the horizontal direction and/or the vertical direction) that causes the rail R to move away from the aisle beam G is applied to the rail R, the confrontation can be maintained. The force is used to fix the rail R to the top plate GP of the aisle beam G.

(the size of the through hole 15h)

The through hole 15h formed in the shaft member connecting portion 15 may have an inner diameter substantially equal to that of the shaft member 20, but preferably slightly larger than the diameter of the shaft member 20. At this time, when the force of the rail R is separated from the top plate GP of the aisle beam G, the central axis of the shaft member 20 is inclined with respect to the axial direction of the through hole 15h. As described above, even if the force for detaching the rail R from the top plate GP of the aisle beam G is applied, the force applied to the shaft member 20 to bend the shaft member 20 can be reduced, and the shaft member 20 is more difficult to be damaged.

In order to obtain this effect, the through hole 15h may be a long hole. Specifically, the through hole 15h may be formed, and the length in which the 俾 intersects the inner surface of the nip 12 (the vertical direction in FIGS. 1 and 3) is longer than the axial diameter of the shaft member 20, and is wide (FIG. 1 and The length in the left-right direction in Fig. 3 is substantially the same as the shaft diameter of the shaft member 20.

(Configuration of through hole 15h)

It is preferable to form the through hole 15h, and the distance from the center axis to the inner surface 13a of the nip portion 13 is equal to or slightly shorter than the distance from the top plate GP of the aisle beam G to the central axis of the through hole Rh of the rail R. According to this configuration, when the rail member 20 and the shaft member connecting portion 15 of the connecting member 10 are coupled by the shaft member 20, the axial direction of the shaft member 20 can be parallel or slightly upward with respect to the upper surface of the top plate GP. Thus, when the force for detaching the rail R from the top plate GP of the aisle beam G is applied, it is easy to reduce the force applied to the shaft member 20, so that the shaft structure is The force of the piece 20 bending and acting.

(Shape of the shaft member connecting portion 15)

When the force of the rail R is released from the top plate GP of the aisle beam G, the force applied to the shaft member 20 is reduced, and the shaft member 20 is bent and actuated. The shaft member coupling portion 15 is as follows. The structure is also effective.

As shown in FIG. 4, the shaft member coupling portion 15 may be arranged obliquely so that the front end thereof is located on the base end side of the pair of holding portions 12, 13 with respect to the base end thereof, that is, on the side of the angle C1. In other words, the shaft member coupling portion 15 may be formed to be inclined toward the corner C1 side. Thus, when the rail R is stretched upward, the angle between the axial direction of the shaft member 20 and the normal direction of the surface of the shaft member connecting portion 15 can be reduced, so that it is easy to reduce the force applied to the shaft member 20, so that The force by which the shaft member 20 is bent to act.

In particular, in the shaft member connecting portion 15, the surface 15a on the proximal end side of the pair of sandwiching portions 12 and 13 is formed to protrude toward the front end side of the pair of sandwiching portions 12 and 13 (in other words, the base end portion side is recessed). Surfaces are better. After the force of the rail R is released from the top plate GP of the aisle beam G, the angle between the axial direction of the shaft member 20 and the upper surface of the top plate GP is increased and moved, but at this time, the surface 15a is as described above. The curved surface and the shaft member 20 are easily moved to change their posture.

Further, the shaft member connecting portion 15 is not limited to the above-described wall shape, and may have a structure in which the shaft member 20 can be coupled. For example, the thickness of the grip portion 12 may be increased, and one portion of the grip portion 12 may be the shaft member joint portion 15. At this time, if a female screw is formed on the end surface of the nip portion 12, the female screw 20b can be screwed by the male screw 20b of the shaft member 20, and the shaft member 20 and the shaft member coupling portion 15 (that is, the nip portion 12) can be coupled.

(about contact protrusions)

Further, as shown in FIG. 1, a contact protrusion 13p may be provided on the inner surface 13a of the nip portion 13.

When the connecting member 10 is fixed to the top plate GP of the aisle G, the lower surface of the top plate GP is in surface contact with the inner surface 13a of the nip portion 13, and the end surface of the top plate GP and the inner surface 14a of the connecting portion 14 are surfaced. The state of contact. However, in this state, the operation of fixing the joint member 10 to the top plate GP of the aisle beam G is rather troublesome, and it is necessary to improve the processing of the inner surface 13a or the inner surface 14a of the joint member 10. degree.

On the other hand, when the contact protrusion 13p is provided on the inner surface 13a of the nip portion 13, and the connecting member 10 is fixed to the top plate GP of the aisle G, the end surface of the top plate GP and the joint portion 14 can be simply formed. The inner surface 14a is in contact with the contact protrusion 13p in contact with the lower surface of the top plate GP. In other words, the connecting member 10 can be easily placed in contact with the top plate GP at two places, so that the connecting member 10 can be coupled to the top plate GP of the aisle G in a stable state.

(Another connecting member 10)

The connecting member 10 is not limited to the above shape (see FIGS. 3 and 4). The connecting member 10 has an engaging groove 11h into which the end portion of the top plate GP of the aisle G can be inserted, and has a structure in which the shaft member 20 can be coupled. For example, the joint member 10 may have a shape as shown in FIG.

The connecting member 10 shown in Figs. 7(A) and (C) has a structure in which one end surface 11a of the block-shaped main body portion is formed with an engaging groove 11h recessed from the one end surface 11a. Further, in the main body portion, a through hole 15h parallel to the axial direction of the engaging groove 11h (see FIGS. 1 and 5) is formed in a portion above the engagement groove 11h. In other words, in the connecting member 10 shown in Figs. 7(A) and (C), the portion of the main body portion where the engaging groove 11h is formed (the portion enclosing the engaging groove 11h) is also used as the Figs. 3 and 4 The shaft member coupling portion 15 in the joint member 10. Further, when the connecting member 10 has the shape shown in Figs. 7(A) and (C), the portion of the main body portion where the engaging groove 11h is formed (Fig. 7(A) and Fig. 7(C) are higher than the engaging groove 11h. The part is equivalent to the so-called shaft member connecting portion in the patent application.

Further, in the connecting member 10 shown in Figs. 7(A) and (C), it is preferable that the connecting member 10 is connected to the shaft member in the shaft member connecting portion, that is, between the through hole 15h and the engaging groove 11h. The part with small intensity. Specifically, it is preferable that the bending strength of the connecting member 10 when the force is applied in a direction in which the engaging groove 11h is expanded is smaller than the bending strength of the shaft member 20, and it is preferably provided in the main body portion of the connecting member 10. For example, in the same manner as the connecting member 10 shown in Fig. 7(C), the angle formed by the surface 11b opposite to the one end surface 11a and the upper surface 11t of the main body portion is cut off to form the inclined surface 11c. Thus, the portion where the distance between the inclined surface 11c and the engagement groove 11h is the shortest is the portion where the bending strength is small.

Further, as in the connection member 10 shown in FIGS. 7(B) and (D), the main body portion may be slightly in a plan view. Formed. That is, the connecting member 10 shown in Figs. 7(B) and (D) is the same as the connecting member 10 of Figs. 7(A) and (C), and a card recessed from the one end surface 11a is formed on one end surface 11a of the main body portion. Closure 11h. Further, a through hole 15h parallel to the axial direction of the engaging groove 11h (see FIGS. 1 and 5) is formed in a portion of the main body portion that is higher than the engaging groove 11h. In the connecting member 10 of this structure, the portion in which the engaging groove 11h is formed in the main body portion (the portion that covers the engaging groove 11h) can also be used as the shaft member connecting portion 15 in the connecting member 10 of FIGS. 3 and 4. Further, when the connecting member 10 has the shape shown in Figs. 7(B) and (D), the portion of the main body portion where the engaging groove 11h is formed (Fig. 7(B) and Fig. 7(D) are higher than the engaging groove 11h. The part is also equivalent to the so-called shaft member joint portion in the patent application.

Further, in the connecting member 10 shown in Figs. 7(B) and (D), the portion to be coupled to the shaft member in the shaft member connecting portion, that is, between the through hole 15h and the engaging groove 11h is preferably curved. The part with small intensity. Specifically, it is preferable that the connecting member 10 is provided in the main body portion of the connecting member 10 in a portion where the bending strength when the biasing force is increased in the direction in which the engaging groove 11h is expanded is smaller than the bending strength of the shaft member 20. For example, in the same manner as the connecting member 10 shown in Fig. 7(D), the angle formed by the surface 11b opposite to the one end surface 11a and the upper surface 11t of the main body portion is cut, and the inclined surface 11c is formed. Thus, the portion where the distance between the inclined surface 11c and the engagement groove 11h is the shortest is the portion where the bending strength is small.

(Regarding the manufacturing method of the connecting member 10)

The method of manufacturing the above-described connecting member 10 is not particularly limited. For example, it may be formed by cutting a single piece or the like, or may be produced by joining a plurality of sheets, or may be formed by bending a sheet material or the like, and is not particularly limited.

Further, the connecting member 10 has a structure as shown in FIGS. 3 and 4, and is curved smoothly at the angle C1, and the sandwiching portion 12 and the connecting portion 14 are preferably integrally formed by a method of cutting a single piece.

Similarly, when the connecting member 10 has the shape shown in FIGS. 7(A) and (C), it is preferably formed by bending a portion having a small bending strength, and is preferably integrally formed by cutting a single piece.

(sliding plate 25)

Further, as described above, when the force for moving the rail R along the top plate GP is applied, if the friction between the rail R and the top plate GP is large, the rail R cannot smoothly move along the top plate GP. For example, after coating or the like is applied to the upper surface of the top plate GP, the frictional resistance when the rail R moves along the top plate GP is increased.

As described above, when the force for moving the rail R along the top plate GP is applied, the rail R may be tilted and moved. At this time, a force for bending the shaft member 20 or the joint member 10 occurs. Thus, the durability of the rail fixing member 1 of the present embodiment (that is, the durability of the fixed rail R and the top plate GP) may be assumed to be lower.

Here, when the force for moving the rail R along the top plate GP is applied, the rail fixing member 1 of the present embodiment preferably has the following configuration in order to have a predetermined durability.

In Fig. 5(A), reference numeral 25 denotes a slide plate. The sliding plate 25 is a plate-shaped member, and is disposed between the rail R and the top plate GP when the rail R is disposed on the top plate GP. This sliding plate 25 has a plate shape, and its surface (at least the surface in contact with the rail R) has a small frictional resistance. Specifically, the surface of the sliding plate 25 is formed, and the frictional resistance thereof is smaller than the frictional resistance of the top plate GP. For example, as the sliding plate 25, if a plate formed of a stainless steel plate or a resin plate or the like is used, the frictional resistance can be made smaller than the frictional resistance of the top plate GP. In particular, if the surface is treated with a fluororesin or the like, the frictional resistance can be made smaller, which is quite preferable.

When the slide plate 25 is provided and the force along the top plate GP is applied to the rail R, the rail R moves along the top plate GP on the slide plate 25. Therefore, in the rail fixing member 1 of the present embodiment, the force in the axial direction of the shaft member 20 is substantially applied. That is, it is possible to prevent the force of raising the rail R from the top plate GP (in other words, the force for tilting the rail R) to the rail fixing member 1 of the present embodiment. As described above, when the force along the top plate GP is applied to the rail R, the force for bending the shaft member 20 or the connecting member 10 can be suppressed, so that the rail fixing member 1 of the present embodiment can have a predetermined durability.

Further, when the slide plate 25 is provided, it is considered that the rail R moves along the top plate GP in the direction toward the joint member 10 (the right direction in FIG. 5). However, as shown in FIG. 6, when the rail fixing member 1 of this embodiment is provided in a staggered arrangement, it is possible to suppress the rail R from moving along the top plate GP toward the coupling member 10.

The thickness of the slide plate 25 is not particularly limited. However, if the thickness is too thick, when the rail fixing member 1 of the present embodiment fixes the rail R to the top plate GP, the shaft member 20 may be inclined with respect to the upper surface of the top plate GP, and the angle thereof may increase. In this case, even if the rail R moves along the sliding plate 25, A force for bending the shaft member 20 or the joint member 10 can be generated. In order to prevent this force from being generated, the thickness of the sliding plate 25 is preferably thin, preferably about 0.5 to 3 mm, and more preferably about 1 to 2 mm.

Further, the slide plate 25 may be only one plate (Fig. 5(A) and the slide plate 25A of Fig. 6), and one end thereof may be bent (Fig. 5(B) and the slide plates 25B, 25C of Fig. 6). The shape in which one end of the slide plate 25B is curved, specifically, as shown in FIG. 5(B), the main body portion 25a and the curved portion 25b substantially perpendicular to the main body portion 25a can be prevented as in the case of the slide plate 25B. The slide plate 25B is dropped, and it is easy to position when the slide plate 25B is provided, which is preferable.

Further, as in the case of the slide plates 25A and 25B, one end thereof may be disposed in the engagement groove 11h of the joint member 10. At this time, since the slide plates 25A and 25B can be surely fixed, it is preferable to prevent the slide plates 25A and 25B from falling or being displaced.

Further, although the length of the slide plate 25 is not particularly limited, the length of the slide plate 25 is long, and when it is shaken by an earthquake or the like, the amount of movement of the rail R can be increased (specifically, along the width direction of the top plate GP) The amount of movement). That is, even if the period such as shaking is long, the rail R can be left on the slide plate 25, so that it is easy to prevent the rail R from being tilted or the like.

Further, if the notch 25h is provided at the position of the connecting member 10 as in the sliding plate 25C of FIG. 6, the thickness of the sliding plate 25 can be increased without considering the gap 11h of the connecting member 10, so that the connecting member 10 can be improved. Versatility.

In FIG. 6, although the slide plate 25 is disposed at a position where the connection member 10 is provided, the slide plate 25 may be provided at a position different from the connection member 10 (for example, a connection adjacent in the axial direction of the rail R). Between members 10). However, if the slide plate 25 is disposed at a position where the joint member 10 is provided, the slide plate 25 can be surely fixed, so that it is possible to prevent the slide plate 25 from falling or being displaced.

Further, the method of providing the slide plate 25 as described above and fixing the rail R to the top plate GP is effective when the rail R is fixed to the top plate GP by the rail fixing member 1 of the present embodiment. On the other hand, it may be fixed by a fixing member such as a hook bolt, that is, a shaft portion having a direction parallel to the top plate GP. The member is used to fix the rail R to the top plate GP. For example, when a hook bolt or the like is used, if the slide plate 25 is provided and the rail R is fixed to the top plate GP, it is possible to suppress the force of bending the hook bolt or the like when the force of the top plate GP is applied to the rail R.

[Examples]

It is confirmed that the rail fixing member of the present invention is resistant to the force for moving the rail.

In the test, when the member corresponding to the rail fixing member of the present invention (hereinafter referred to as the fixing member of the embodiment) and the hook bolt were used to fix the rail to the aisle, the force of the rail could not be fixed.

The rails used are 15kg rails with a length of 240mm and/or 22kg rails (JIS E1101 (2011)). Further, 15 kg and 22 kg represent a weight per 1 m in length. The greater the weight, the more difficult it is for the rail to shift, allowing the trolley with weight to move.

In the vertical direction test, the tool for fixing the rail is I-shaped steel (H220×B200).

The fixing member of the embodiment used has a shape as shown in FIG. In the rail fixing member, the dimensions of the respective portions shown in Fig. 4(B) are as follows.

(15kg rail)

H: 98mm

H1: 44mm

H2: 21mm

L1: 55mm

L2: 39mm

DP1: 40mm

DW: 29mm

D1:15mm

T: 15mm

Shaft member (horizontal direction): M12×L160mm hexagon bolt (15kg rail)

Shaft member (vertical direction): M12×L110mm hexagon bolt (15kg rail)

Further, the width of the connecting member is 32 mm.

(22kg rails)

H: 116mm

H1: 49mm

H2: 28mm

L1: 70mm

L2: 48mm

DP1: 50mm

DW: 29mm

D1: 19mm

T: 20mm

Shaft member (horizontal direction): M16×L160mm hexagon bolt (22kg rail)

Shaft member (vertical direction): M16×L110mm hexagon bolt (22kg rail)

Further, the width of the connecting member is 32 mm.

The hook bolts are used for a shaft diameter of 13 mm for a 15 kg rail and 16 mm for a 22 kg rail.

In the vertical load test, the rails were fixed to the above-mentioned I-shaped steel by the fixing members or the hook bolts of the examples. In addition, the I-shaped steel and the rail were attached to a tensile tester (manufactured by Shimadzu Corporation: Model No. 600794-03), and a tensile load was applied to the I-shaped steel, and the rails were moved in the vertical direction. Further, the tensile load was increased, and the timing at which the tensile load was changed from the increase to the decrease was confirmed, that is, the load at the timing when the force of the rails was stopped by the fixing member or the hook bolt of the embodiment.

In the test of the vertical load, the fixed member (rail fixing member 1) or the hook bolt HB of the embodiment is fixed to the I-shaped steel IS as shown in Figs. 8(B) and 9(B), respectively. method. Further, the two rail fixing members 1 and the hook bolts HB are fixedly used, and the rail fixing members 1 and the hook bolts HB are disposed one by one on both sides of the rail R.

And comparing the strength of the load with respect to the horizontal direction when the rails of the embodiment are fixed to the aisle by the fixing members or the hook bolts of the embodiment. In the test for the load in the horizontal direction, the test was carried out by the method shown in Fig. 8 (A) (rail fixing member 1) and Fig. 9 (A) (hook bolt HB). That is, in the fixing member or the hook bolt of the embodiment, two rail fixing members 1 and two hook bolts HB are disposed, and the two sheets B are joined between the two sheets. Further, two sheets were attached to the tensile tester, and the two sheets were separated from each other to move and a tensile load was applied. The tensile load was measured in the same manner as in the vertical load test.

In the measurement, a tensile load was applied from the state set in the tensile tester, and the load at the timing of the change from the increase to the decrease was confirmed.

The test results are disclosed below.

In the case of the fixing member of the embodiment, although the bending is caused from the cut corner portion of the joining member, the shaft member is only slightly curved. Further, the connecting member and the rail are connected by the shaft member, and the connecting member maintains the connection with the I-shaped steel even if it is bent. Further, it was confirmed that the rail was greatly deformed compared to the deformation of the joint member or the like.

From the results, it was confirmed that in the fixing member of the embodiment, the connecting member was deformed, but even if the force for detaching the rail from the top plate of the aisle beam was applied, the rail was surely fixed to the aisle.

On the other hand, when the rail is fixed to the I-shaped steel by the hook bolts conventionally used, the rails are not deformed, but the hook bolts are damaged.

Therefore, it has been confirmed that the hook bolt used in the past has a lower ability to fix the rail to the aisle beam than the fixing member of the embodiment against the force of disengaging the rail from the top plate of the aisle beam.

Further, in the test in which the load in the horizontal direction (i.e., the load in the direction of the upper surface of the top plate of the aisle beam) is applied, the joint members of the hook bolt and the rail fixing member are deformed before the sheet or the rail is deformed. Thereby, it was confirmed that the limit of the strength of the hook bolt and the rail fixing member to the horizontal load was measured.

As shown in Table 1, the fixing member of the embodiment has about 6 times the strength with respect to the hook bolt when the load of the timing at which the force of the rail is lost is simply compared.

(Also, the above values have been converted to each metal)

Here, a load on the horizontal direction of the rail is applied to the top of the rail. In this way, the force that simply moves the rail in the horizontal direction is applied, and the force (dumping moment) that causes the rail to fall is generated. Consider this moment and find the strength in the horizontal direction (converted intensity, one per). The results are shown in Table 2.

And considering the actual construction state, the load that can be carried in the unit distance interval (600 mm) is obtained. The results are shown in Table 3. Further, the number in the table is the number of components set in the unit distance section. And the conversion result only shows the result of the 15kg rail.

As shown in Table 3, even in the load that can be carried by the unit distance section, the fixing member of the embodiment is larger than the hook bolt regardless of the horizontal direction and the vertical direction. It can be confirmed that the fixing member of the embodiment is about 9 times in the vertical direction and about 6 times in the horizontal direction, and can be carried compared to the hook bolt. The load is large.

That is, it can be confirmed that in the actual construction conditions, the fixing member of the embodiment can securely fix the rail to the aisle beam as compared with the conventional hook bolt.

As described above, it can be confirmed that the rail fixing member of the present invention is used in any case, when a load in the horizontal direction is applied to the rail and a vertical load is applied to the rail, in any case. Has a strong track bearing capacity.

[Industrial use]

The rail fixing member of the present invention is suitable for fixing a rail to a member of a top plate of a truss beam such as a walkway beam.

RU‧‧‧ vertical wall

Rh‧‧‧through hole

C1‧‧‧ corner

G‧‧‧Aisle beam

GP‧‧‧ top board

R‧‧‧ rails

1‧‧‧ rail fixing members

10‧‧‧Connected components

11h‧‧‧ card groove (gap)

11‧‧‧ Body Department

12‧‧‧Clamping Department

13p‧‧‧Contact protrusion

13‧‧‧Clamping Department

14‧‧‧Connecting Department

15‧‧‧Axis member joint

20a‧‧‧ head

20b‧‧‧ male thread

20‧‧‧Axis components

21‧‧‧ nuts

Claims (9)

A rail fixing member fixes a rail disposed on an upper surface of a top plate of a truss beam to a top plate of the truss beam, characterized by comprising: a connecting member mounted on an edge of a top plate of the truss beam; and a shaft member, The connecting member and the rail are coupled to each other; and the connecting member has a shaft member connecting portion that connects the shaft member, and an engaging groove that is recessed from the one end surface and inserted into an end edge of the top plate of the truss beam is formed on one end surface. The rail fixing member according to claim 1, wherein the connecting member is formed to face the engaging groove between a portion of the shaft member connecting portion that is coupled to the shaft member and the engaging groove. The bending strength when the direction of expansion is smaller than the bending strength of the shaft member. The rail fixing member according to claim 1 or 2, wherein the connecting member comprises: a pair of clamping portions configured to form the engaging groove between inner surfaces facing each other; and a connecting portion connecting the one Between the base end portions of the nip portion; and the shaft member coupling portion is provided on an outer surface of one of the pair of nip portions, the connecting member is formed to face the front end of the pair of nip portions When the force is applied in the direction of the inter-part disengagement, the bending strength of the connecting portion of the pair of holding portions and the connecting portion is smaller than the bending strength of the shaft member. The rail fixing member according to claim 3, wherein the shaft member connecting portion is a wall portion of one of the pair of holding portions provided on an outer surface of the front end portion, and the shaft member connecting portion is formed with the shaft The through hole is inserted into the member, and the shaft member connecting portion is inclined such that the front end thereof is located on the base end side of the pair of holding portions with respect to the base end thereof. The rail fixing member according to claim 3, wherein the shaft member connecting portion is a wall portion provided on one of the pair of holding portions on the outer surface of the front end portion, and the shaft member connecting portion is formed at the shaft member connecting portion a through hole through which the shaft member is inserted, and a surface on a proximal end side of the pair of clamping portions is formed to protrude toward a front end side of the pair of clamping portions Surface. The rail fixing member according to claim 1 or 2, wherein the shaft member connecting portion is formed with a through hole through which the shaft member can be inserted, and the through hole is formed to expand the engaging groove The length of the direction is longer than the shaft diameter of the shaft member. The rail fixing member according to claim 6, wherein a rail-side through hole through which the shaft member is inserted is formed in a vertical portion of the rail, and the through hole of the shaft member connecting portion is formed as follows: The distance from the central axis to the inner surface of the other of the pair of clamping portions is equal to or shorter than the distance from the lower surface of the top plate of the truss to the central axis of the rail side through hole. The rail fixing member according to claim 1 or 2, wherein a sliding plate is disposed between the upper surface of the top plate of the truss beam and the rail, and the friction between the sliding plate and the rail is higher than that of the truss The top surface of the top plate is smaller. A rail fixing method, wherein a rail disposed on an upper surface of a top plate of a truss girder is fixed to a top plate of the truss girder by a fixing member, wherein: a arranging between the top plate of the truss girder and the rail a rail member is fixed to the truss beam by a fixing member as claimed in claim 1 in a state in which the upper surface of the top plate of the truss is smaller than the sliding plate between the rails The top plate.