JP7290279B2 - Expansion joint cover device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an expansion joint cover device provided in a gap between two skeletons and having a handrail.

As an expansion joint cover device having a handrail, for example, Patent Document 1 discloses an expansion joint that movably connects following the movement between the skeletons, and is a rotation connection part that connects the scaffolding, a plurality of handrails, and the skeleton and the handrails. The scaffolding is arranged in a state where it can freely move horizontally across the frame, and one handrail and the other handrail are fitted so as to be slidable in a substantially horizontal direction. It is disclosed that the rotatable connecting portion and the rotatable connecting portion are rotatable around the vertical axis with the shaft portion as the center.

JP 2015-151736 A

In order for this type of expansion joint cover device to function smoothly, it is necessary to attach the handrail to the frame so that the horizontal frame is horizontal and the vertical frame is vertical. For this reason, it was necessary to install the handrails between the frames while keeping the handrails horizontal and vertical. However, the installation work required to keep the handrails horizontal and vertical required labor, and improvement was sought.

Accordingly, an object of the present invention is to provide an expansion joint cover device capable of improving the accuracy and workability when attaching a handrail horizontally and vertically to a frame.

The present invention has been made to solve the above-described problems, and includes one handrail attached to one side of the skeleton and the other handrail attached to the other side of the skeleton, An expansion joint cover device in which a handrail and the other handrail are connected and arranged in a gap between the one frame and the other frame, wherein the one handrail and the other handrail are two vertical frames and , an upper horizontal frame, and a lower horizontal frame, and the one handrail is rotatably connected to the one frame and slides with respect to the other handrail. Rotating connection means for connecting the one handrail and the one frame are composed of a first connection member fixed to the one handrail and a second connection member fixed to the one frame . and a connecting member, wherein the first connecting member includes a holding portion that supports the vertical frame of the one handrail, and the holding portion is attached to the one handrail by a fastener from the side surface of the one handrail. fixed to the vertical frame.
As fasteners for fixing the holding portion and the vertical frame, conventionally known fasteners such as through bolts, screws with pilot holes, screws without pilot holes, and rivets can be used.

The present invention is as described above, and the rotary connection means for connecting one handrail and one frame includes a first connection member fixed to one handrail and a second connection member fixed to one frame. and the first connecting member has a holding portion that supports the vertical frame of one handrail, and the holding portion is fixed to the vertical frame of the one handrail by a fastener from the side surface of the one handrail. According to such a configuration, the rotating connecting means can be attached to one of the handrails simply by inserting the vertical frame of one of the handrails into the holding portion and fixing it from the side surface with fasteners such as screws.

In other words, instead of the front of the handrail ( the side facing the building on one side ), it is possible to fix it with fasteners such as screws from the side of the handrail, which has a wide working space, so it is easy to work. Since the handrail is fixed to the rotating connecting means in the vertical state, the connecting work can be easily performed.

Further, a receiving groove that engages with the tip portion of the holding portion may be formed on the side surface of the vertical frame of one of the handrails to which the first connecting member is attached. According to such a configuration, the strength against horizontal load can be improved by the receiving groove.

Also, the vertical frame may have a side surface that is thicker than other portions to be fixed to the first connecting member with fasteners. According to such a configuration, the fixing strength is improved by attaching a fastener such as a screw to the side surface of the thick vertical frame, and the strength against horizontal and vertical loads is improved. It can prevent falling off.

In addition, the first connecting member and the second connecting member have a rotating shaft formed on one side and a holding groove for rotatably holding the rotating shaft formed on the other side. A locking projection is formed to protrude and is supported by the shaft support portion, and the holding groove has a concave groove for accommodating the rotation-stopping projection formed on the inner peripheral surface, and faces the shaft support portion at the opening edge. A convex portion is formed, and when the rotating shaft rotates in the holding groove, the anti-rotation projection comes into contact with the concave groove, and the shaft support portion comes into contact with the convex portion, thereby preventing rotation of the rotating shaft. It may be suppressed. According to such a configuration, it is possible to regulate the rotation range of the rotation shaft, and to prevent damage to the projection by dispersing the load on the projection.

Also, the rotation shaft may be configured to be shorter than the length of the holding groove in the longitudinal direction. According to such a configuration, since the rotation shaft can move up and down inside the holding groove, it can follow the displacement of the frame in the height direction.

In addition, the holding groove may be provided with drop-off prevention means for preventing the rotating shaft from dropping out of the lower opening of the holding groove. With such a configuration, it is possible to prevent the rotation shaft from coming off.

Moreover, a fixture for fixing the second connecting member to one of the skeletons may be provided, and a decorative cover material may be attached to the second connecting member so as to cover the fixture. According to such a configuration, since the fixture is not exposed, the design is improved.

Also, an end cover may be attached to the upper surface of the decorative cover material. According to such a configuration, it is possible to improve the design and prevent the decorative cover material from coming off.

Further, a sliding connecting member for connecting one handrail and the other handrail is provided, and the sliding connecting member is fixed to one handrail and slides against a sliding groove formed in the side surface of the other handrail. It may be movably engaged. According to such a configuration, the sliding connecting member can be made to have a minimum necessary length shorter than the length in the longitudinal direction of one of the handrails. also improve. In other words, when the handrail is provided with a protruding portion that can be slidably engaged as in the conventional configuration (see, for example, JP-A-2015-151736), the protruding portion must be formed over the entire length of the handrail. If the sliding connecting member is provided as a separate member from the handrail as in the present invention, the length of the projecting portion can be adjusted, so there is no need to provide a useless projecting portion.

The upper lateral frame of one handrail and the other handrail is a member having the same cross-sectional shape with a sliding groove. An engaging projection is formed on the other side surface of the sliding connecting member to engage with the sliding groove when the sliding connecting member is fixed to the upper horizontal frame. good too. According to such a configuration, the one handrail and the upper lateral frame of the other handrail can be formed from the same member, so that the manufacturing cost can be suppressed. Further, by engaging the engaging projections of the sliding connecting member with the sliding grooves, strength against horizontal and vertical loads is improved, and positioning is facilitated.

Further, the upper horizontal frame may have a side wall portion formed thicker than other portions for fixing the sliding connecting member with a fastener. According to such a configuration, fixing strength is improved by attaching fasteners such as screws to the thick portion of the upper horizontal frame, and strength against horizontal and vertical loads is improved, so that sliding during displacement is possible. It is possible to prevent the connecting member from coming off.

It is a plane sectional view of an expansion joint cover device. FIG. 2 is a cross-sectional view taken along the line AA shown in FIG. 1; FIG. 2 is an enlarged view of a B portion shown in FIG. 1; (a) A diagram showing how to attach the end cover, (b) a diagram showing how to attach the vertical frame to the first connecting member. It is a figure which shows how to attach a rotation connection means, (a) The figure which shows the attachment of a 1st connection member and a 2nd connection member, (b) The figure which shows the attachment of a decorative cover material. It is a figure which shows how to attach a vertical frame to a rotation connection means, (a) The figure which shows the attachment to a 1st connection member, (b) The figure which shows the attachment of a screw. (a) A cross-sectional view of a vertical frame and a first connecting member, (b) a partially enlarged cross-sectional view near a receiving groove. (a) is a diagram when the rotation shaft is rotated to the maximum angle, and (b) is a diagram when the rotation shaft is rotated to the maximum angle in the opposite direction. It is a perspective view of a 2nd connection member. 3A and 3B are an enlarged view of part C and an enlarged view of part D shown in FIG. 2; FIG. (a) The figure which looked at the upper horizontal frame and the sliding connection member from the front, (b) The figure which combined the upper horizontal frame and the sliding connection member. (a) A diagram showing an expansion joint cover device that follows displacement of a skeleton, (b) A diagram that shows an expansion joint cover device that follows displacement of a skeleton in another direction. It is a figure which concerns on a modification, Comprising: It is planar sectional drawing of an expansion joint cover apparatus. FIG. 14 is a view according to a modification, and is a cross-sectional view taken along line EE shown in FIG. 13; FIG. 14 is an enlarged view of the F portion shown in FIG. 13, according to a modification; 14. It is a figure which concerns on a modification, Comprising: (a) G section enlarged view shown in FIG. 14, (b) H section enlarged view. It is a figure according to a modification, (a) a diagram showing an expansion joint cover device that follows the displacement of the skeleton, (b) a diagram showing an expansion joint cover device that follows the displacement of the skeleton in another direction. It is a figure which concerns on the modification of a vertical frame and a 1st connection member, Comprising: (a) sectional drawing with a fitting part in the front surface of a vertical frame, (b) sectional drawing with a fitting part in the rear surface of a vertical frame. .

(First embodiment)
A first embodiment of the present invention will be described with reference to the drawings.
The expansion joint cover device 10 according to the present embodiment, as shown in FIGS. , and the other handrail 12 attached to the other frame 52 side, the one handrail 11 and the other handrail 12 are connected and arranged in the gap 50 between the one frame 51 and the other frame 52. be. One of the handrails 11 is rotatably connected to the rotational connection target and slidably connected to the slidable connection target. In this embodiment, one of the skeletons 51 is a pivotally connected object that is rotatably connected to one handrail 11 , and the other handrail 12 is slidably connected to the one handrail 11 . It is subject to a sliding connection that

The expansion joint cover device 10 according to the present embodiment includes a rotary connection means 20 for connecting the handrail 11 and the handrail 12 on the other hand to the frame, and slidably connects the handrail 11 and the handrail 12 on the other hand. and a sliding coupling member 30 for.

One handrail 11 and the other handrail 12 are arranged parallel to each other as shown in FIG. As shown in FIG. 1, the handrail 11 on one side and the handrail 12 on the other side are arranged such that their side surfaces partially overlap each other. A sliding connection member 30 is provided in the overlapped portion of the side surfaces, so that the handrail 11 and the handrail 12 are connected to each other so as to be slidable in the horizontal direction.

As shown in FIGS. 1 and 2, the handrail 11 on one side and the handrail 12 on the other side are formed by a four-sided framework consisting of two square prism-shaped vertical frames 16, an upper horizontal frame 13, and a lower horizontal frame 15. It is Also, a plurality of intermediate vertical frames 17 are arranged within this framework. The intermediate vertical frames 17 are vertically spanned between the upper horizontal frame 13 and the lower horizontal frame 15, and a plurality of intermediate vertical frames 17 are arranged at predetermined intervals in the longitudinal direction of the upper horizontal frame 13 and the lower horizontal frame 15. are placed. In addition, the intermediate vertical frame 17 may be increased or decreased depending on the length of the four-sided frame in the longitudinal direction, and only one intermediate vertical frame 17 may be arranged, or none of the intermediate vertical frames 17 may be provided. .

As shown in FIGS. 10(a) and 11, the upper horizontal frame 13 constitutes the top rail of the handrail, and is fixed across the upper ends of the two vertical frames 16. As shown in FIG. The upper horizontal frame 13 is an elongated aluminum extruded shape formed in the air. and a bottom plate portion 13b provided horizontally between one side wall portion 13c and the other side wall portion 13g.

The top plate portion 13a is formed to have a semicircular cross section. However, the shape of the top plate portion 13a is not limited to this. Although not shown, for example, the top plate portion 13a may be formed flat or may have a shape with slanted corners.

13 d of sliding grooves which open toward the side of a handrail are formed in one side wall part 13c over the longitudinal direction full length. This sliding groove 13d is for slidably engaging with a sliding connecting member 30, which will be described later, or for fixing the sliding connecting member 30. As shown in FIG. That is, in the upper horizontal frame 13 according to this embodiment, members having the same cross-sectional shape are used for the one handrail 11 and the other handrail 12, and the sliding connection member 30 is fixed to one handrail 11 and the other handrail 11 By slidably engaging the sliding connection member 30 with the other handrail 12, the one handrail 11 and the other handrail 12 can be slidably connected.

Moreover, this one side wall portion 13c forms a thick portion 13e in which a portion above the slide groove 13d is thicker than other portions (for example, the other side wall portion 13g). A fastener 32 such as a screw for fixing a slide connecting member 30, which will be described later, is screwed into the thick portion 13e. By forming the thick portion 13e with a large thickness, it is possible to secure a sufficient screwing depth when the fastener 32 is screwed. As a result, the mounting strength of the fastener 32 against horizontal and vertical loads is improved, so that the slide connecting member 30 can be prevented from coming off during displacement.
In addition, an engaging groove 13f for engaging the sliding connecting member 30 is formed over the entire length in the longitudinal direction on the lower surface of the one side wall portion 13c.

As shown in FIG. 10(b), the lower horizontal frame 15 constitutes the lower end of the handrail, and is fixed across the lower ends of the two vertical frames 16. As shown in FIG. The lower horizontal frame 15 is an elongated aluminum extruded shape with a substantially U-shaped cross section that opens downward, and includes a top plate portion 15a and one side wall portion 15c and the other side wall portion 15c hanging down from the left and right ends of the top plate portion 15a. and a side wall portion 15g. The lower horizontal frame 15 is held in a floating state so as not to contact the ground.

One side wall portion 15c is formed with a sliding groove 15d that opens toward the side surface of the handrail over the entire length in the longitudinal direction. The slide groove 15d is for slidably engaging with a slide connection member 30, which will be described later, or for fixing the slide connection member 30. As shown in FIG. That is, in the lower horizontal frame 15 according to this embodiment, members having the same cross-sectional shape are used for the one handrail 11 and the other handrail 12, and the sliding connection member 30 is fixed to one handrail 11 and the other handrail 11 By slidably engaging the sliding connection member 30 with the other handrail 12, the one handrail 11 and the other handrail 12 can be slidably connected.

Also, the one side wall portion 15c forms a thick portion 15e in which the portion above the slide groove 15d is thicker than the other portions (for example, the other side wall portion 15g). A fastener 32 such as a screw for fixing a slide connecting member 30, which will be described later, is screwed into the thick portion 15e. By forming the thick portion 15e with a large thickness, it is possible to secure a sufficient screwing depth when the fastener 32 is screwed. As a result, the attachment strength of the fastener 32 against horizontal and vertical loads is improved, so that the slide connecting member 30 can be prevented from coming off during displacement. Since the same sliding connection member 30 is used for the upper horizontal frame 13 and the lower horizontal frame 15, the number of parts can be reduced. , 15d allows smooth displacement by sliding the same up and down.

As shown in FIG. 1 , the vertical frame 16 of the two vertical frames 16 which is closer to the building frame is connected to the building body by a rotary connection means 20 . Specifically, the vertical frame 16 of one handrail 11 is rotatably held with respect to the one frame 51, so that the one handrail 11 is rotatably connected to the one frame 51. . Further, the other handrail 12 is rotatably connected to the other frame 52 by holding the vertical frame 16 of the other handrail 12 rotatably with respect to the other frame 52 .

The vertical frame 16 to which the rotary connection means 20 is attached in this way is a rectangular prism-shaped extruded aluminum profile as shown in FIG. A first connecting member 21 (a part of the rotating connecting means 20) is attached.

Both side surfaces 16b of the vertical frame 16 are composed of an engaging surface 16d continuing rearward from the right and left ends of the front surface 16a, an abutment surface 16e rising vertically from the engaging surface 16d, and and an exposed surface 16f provided rearwardly and parallel to the engaging surface 16d. The front end of the exposed surface 16f forms a protruding portion 16g that protrudes forward from the abutting surface 16e, and the projecting portion 16g, the abutting surface 16e, and the engaging surface 16d form a substantially U-shaped receiving groove. 16h is formed. Further, on the inner surface of the engaging surface 16d, a thick portion 16i formed to be thicker than other portions (for example, the exposed surface 16f provided in parallel) is formed so as to be fixed by the fastener 24. there is A fastener 24 such as a screw for fixing a holding portion 21e of the first connecting member 21, which will be described later, is screwed to the thick portion 16i. By forming the thick portion 16i thickly, a sufficient screwing depth can be ensured when the fastener 24 is screwed. As a result, the mounting strength of the fastener 24 against horizontal and vertical loads is improved, so that the first connecting member 21 can be prevented from coming off.

The rotary connection means 20 is for connecting the one handrail 11 and the other handrail 12 so as to be horizontally rotatable with respect to the frame. The rotary connection means 20 is provided corresponding to each of the handrail 11 and the handrail 12 on the other side. That is, there are provided a rotary connection means 20 for connecting the handrail 11 on one side and the frame 51 on the one side, and a rotary connection means 20 for connecting the handrail 12 on the other side and the frame 52 on the other side. In the following, the rotating connection means 20 that connects the handrail 11 and the frame 51 will be described as an example. It has the same configuration as described below.
3 and 4, the rotary connecting means 20 includes a first connecting member 21, a second connecting member 22, a decorative cover material 26, and an end cover 27. As shown in FIGS.

The first connecting member 21 is a member fixed to one of the handrails 11 and is an elongated extruded aluminum profile slightly shorter than the vertical frame 16 . As shown in FIGS. 3 and 7, the first connecting member 21 includes a hollow prismatic portion 21a, a shaft supporting portion 21b extending from a corner of the prismatic portion 21a toward one of the skeletons 51, and a shaft. A rotating shaft 21c formed at the tip of the support portion 21b, and a holding portion 21e projecting in the opposite direction of one skeleton 51 from the square column portion 21a are provided.

The rotating shaft 21c is a round bar-shaped portion that extends vertically and is supported by the shaft support portion 21b. The rotating shaft 21c is a rotating shaft 21c that rotatably connects the first connecting member 21 and the second connecting member 22, and is rotatably held by a holding groove 22e described later. A detent projection 21d is formed on the circular outer periphery of the rotation shaft 21c. The anti-rotation projection 21d is provided to restrict the rotation of the rotation shaft 21c beyond a predetermined range when it rotates in the holding groove 22e. In this embodiment, two anti-rotation protrusions 21d are symmetrically formed to protrude in opposite directions. Further, the rotating shaft 21c is formed over the entire length of the first connecting member 21, but is configured to be shorter than the length of the holding groove 22e in the longitudinal direction.

The holding portion 21e is a portion for holding the vertical frame 16 of the handrail, and is formed by two projecting plates 21f projecting from the rear surface of the prism portion 21a. The two protruding plates 21f protrude parallel to each other from the rear surface of the prismatic portion 21a. A holding portion 21e having a U-shaped cross section is formed to cover the front surface 16a. The holding portion 21 e is formed over the entire length of the first connecting member 21 .

When inserting the vertical frame 16 into the holding portion 21e, it is inserted from the front surface 16a of the vertical frame 16 as shown in FIG. Since the distance between the two protruding plates 21f is formed to be substantially equal to the width of the engaging surfaces 16d on both sides of the vertical frame 16, the inner surfaces of the two protruding plates 21f are aligned with the engaging surfaces on both sides of the vertical frame 16. The vertical frame 16 can be inserted into the holding portion 21e by aligning the vertical frame 16d.

Then, when the vertical frame 16 is inserted all the way into the holding portion 21e, as shown in FIG. to engage. A step 21h is formed near the tip of the projecting plate 21f at a position facing the tip of the projecting portion 16g of the vertical frame 16 when inserted into the receiving groove 16h.

With this configuration, even when a horizontal load acts on the vertical frame 16 and the first connecting member 21, the tip 21g of the protruding plate 21f interferes with the receiving groove 16h, and the protruding plate 21f is The interference between the step 21h and the tip of the projecting portion 16g improves the strength against a horizontal load.

The vertical frame 16 inserted into the holding portion 21e in this way is fixed by fasteners 24 such as screws from both sides as shown in FIG. 4(b). The fasteners 24 attached from both sides of the holding portion 21e pass through the holding portion 21e and are screwed to the vertical frame 16 of one of the handrails 11, whereby the holding portion 21e and the vertical frame 16 are fixed. It should be noted that the mounting positions of the fasteners 24 may be provided in at least two upper and lower positions, and may be three or more positions.
The configuration in which the first connecting member 21 holds the vertical frame 16 is not limited to that of the above-described embodiment, and various configurations are conceivable.

For example, as shown in FIGS. 18(a) and 18(b), the vertical frame 16 may be held by fitting or the like. Specifically, as shown in FIG. 18A, the fixing piece 21i is protruded from the holding portion 21e of the first connecting member 21, and the fixing piece 21i is attached to the front surface 16a of the vertical frame 16 inserted into the holding portion 21e. A locking piece 16j to be fitted may be provided, and the fixed piece 21i and the locking piece 16j may be fitted together and fixed with fasteners (not shown) from both sides. Moreover, as shown in FIG. 18(b), by completely covering the side surface 16b of the vertical frame 16 with the projecting plate 21f of the first connecting member 21 and hooking the tip of the projecting plate 21f to the corner of the rear surface 16c, the projecting Plate 21f may be engaged with rear face 16c and secured by fasteners (not shown) from both sides. Further, although not shown, a concave portion may be formed in the holding portion 21e, and an integral or separate locking piece may be provided on the front surface 16a of the vertical frame 16, and the locking piece may be fitted into the concave portion. good.

The second connecting member 22 is a member fixed to one of the skeletons 51 and is an elongated extruded aluminum profile slightly longer than the first connecting member 21 . As shown in FIGS. 3 and 9, the second connecting member 22 includes a fixing portion 22a, and side plate portions 22b and groove forming portions 22d projecting forward from left and right ends of the fixing portion 22a.
The fixed part 22 a is a part fixed to one skeleton 51 . This fixed portion 22a is fixed to one skeleton 51 by a fixture 25 such as an anchor bolt.

The side plate portion 22b is a portion projecting substantially vertically forward from the fixing portion 22a. A claw portion 22c is formed at the tip of the side plate portion 22b for fitting a decorative cover member 26, which will be described later.

The groove forming portion 22d is a portion for forming the holding groove 22e, and protrudes forward from the fixed portion 22a substantially parallel to the side plate portion 22b. The holding groove 22e is a groove for rotatably holding the rotating shaft 21c. The holding groove 22e according to this embodiment is formed in a substantially C shape as shown in FIG. The holding groove 22e is formed over the entire length of the second connecting member 22 in the longitudinal direction. Since the second connecting member 22 is longer than the first connecting member 21, the holding groove 22e is also longer than the rotating shaft 21c formed over the entire length of the first connecting member 21. As shown in FIG.

In the vicinity of the lower end of the holding groove 22e, as shown in FIG. 9, a fall prevention means 23 is provided to prevent the rotation shaft 21c from falling out of the lower opening of the holding groove 22e. The rotating shaft 21c is held inside the holding groove 22e above the drop-off preventing means 23, so that it cannot move below the drop-off preventing means 23. As shown in FIG.

The fall prevention means 23 according to this embodiment includes a nut 23a arranged inside the holding groove 22e and a nut mounting screw 23b for mounting the nut 23a. The nut mounting screw 23b is mounted so as to protrude into the holding groove 22e through the fixing portion 22a, and the nut 23a is mounted on the shaft portion of the nut mounting screw 23b. A concave groove 22f for holding the nut 23a is provided on the inner peripheral surface of the holding groove 22e. The concave groove 22f is for guiding the nut 23a so as to slide vertically along the longitudinal direction of the holding groove 22e. formed in shape. When fixing the nut 23a inside the holding groove 22e, the nut 23a is moved along the recessed groove 22f to a predetermined position, and the nut mounting screw 23b is attached so as to pass through the nut 23a. By fixing the nut 23a in this way, the drop-off prevention means 23 that closes the holding groove 22e with the nut 23a is configured. Since the outer peripheral surface of the nut 23a is supported by the recessed groove 22f, the rotation of the nut 23a can be prevented when the nut mounting screw 23b is rotated to mount the nut 23a. be.

Moreover, the drop-off preventing means 23 is not limited to the above-described mode. For example, the retaining groove 22e and a screw (not shown) may form the fall prevention means 23. FIG. Specifically, a screw is screwed from the lower opening of the holding groove 22e formed in a screw hole shape, and the tip of the screw faces the lower end of the rotating shaft 21c, thereby preventing the rotating shaft 21c from falling off. good. If the retaining groove 22e is used to form the drop-off preventing means 23 in this way, it is not necessary to provide holes for screws, and the processing cost can be reduced.

In addition, as shown in FIG. 8, the holding groove 22e has a concave groove 22f formed on the inner peripheral surface and a convex portion 22g formed on the opening edge. The concave groove 22f accommodates the anti-rotation protrusion 21d of the rotating shaft 21c, and is formed at two locations so as to face each other. Further, the convex portion 22g is formed so as to face the shaft support portion 21b that supports the rotation shaft 21c. The concave groove 22f and the convex portion 22g constitute rotation restricting means for restricting the rotation of the rotating shaft 21c.

This rotation restricting means acts as shown in FIG. That is, when the rotation shaft 21c rotates to the maximum angle inside the holding groove 22e, the anti-rotation projection 21d contacts the wall of the groove 22f, and the shaft support portion 21b contacts the projection 22g. Rotation of the rotation shaft 21c is suppressed. In this embodiment, since the anti-rotation projection 21d and the groove 22f are provided on both sides, rotation is restricted at three points, the groove 22f on both sides and the protrusion 22g on the opening edge. there is As a result, the load on the projection 22g can be distributed to three points, and damage to the projection 22g can be prevented.

A locking portion 22h is formed on the side surface of the grooved portion 22d facing the side plate portion 22b. The engaging portion 22h is for fitting a decorative cover member 26, which will be described later.

As shown in FIG. 3, the decorative cover member 26 is a cover that is attached to the second connecting member 22 from the outside, and is an elongated plate-like member formed to have approximately the same length as the second connecting member 22. . As shown in FIG. 9, the decorative cover member 26 has a first attachment end portion 26a engaged with the claw portion 22c and a second attachment end portion 26b engaged with the locking portion 22h. I have. By fitting the first attachment end portion 26a and the second attachment end portion 26b to the second connection member 22, the decorative cover material 26 can be attached to the second connection member 22 with one touch. By attaching this decorative cover material 26 to the second connecting member 22, the surface of the second connecting member 22 can be covered, and the fixture 25 for fixing the second connecting member 22 to the frame is not exposed to the outside. can be covered with

The end cover 27 is a plate-like member attached to the upper surfaces of the second connecting member 22 and the decorative cover material 26, as shown in FIG. 4(a). The end cover 27 is fixed to the upper surface of the second connecting member 22 and the decorative cover material 26 by fasteners 28 such as screws. The fastener 28 passes through the end cover 27 and is screwed into a screw hole formed in the second connecting member 22 and the decorative cover member 26 . Thus, even if the fitting between the second connecting member 22 and the decorative cover material 26 is disengaged, the end cover 27 can prevent the decorative cover material 26 from coming off.
The rotary connecting means 20 described above is assembled, for example, in the following procedure.

That is, first, as shown in FIGS. 5A and 5B, the fixing portion 22a of the second connecting member 22 is fixed to the surface of one skeleton 51 with the fixture 25. As shown in FIG. Then, the rotating shaft 21c of the first connecting member 21 and the holding groove 22e of the second connecting member 22 are rotatably connected. For example, the first connecting member 21 is lifted, and the rotating shaft 21c is inserted from the end of the holding groove 22e and slid. As a result, the pivotal connection means 20 that has been positioned horizontally and vertically with respect to the skeleton is configured.

After that, as shown in FIG. 5(b), a decorative cover material 26 is attached so as to cover the fixture 25. Then, as shown in FIG. Since the decorative cover material 26 is fitted and fixed to the second connecting member 22, it can be attached by simply pressing it against the second connecting member 22 without the need for fasteners such as screws. After attaching the decorative cover material 26 to the second connecting member 22 , the end cover 27 is attached to the upper surfaces of the second connecting member 22 and the decorative cover material 26 .

Next, as shown in FIG. 6A, the vertical frame 16 of one handrail 11 is inserted horizontally into the holding portion 21e. As a result, the rotary connection means 20 and the handrail are connected.
Finally, as shown in FIG. 6B, the work is completed by attaching fasteners 24 such as screws from both sides of the holding portion 21e.

According to such a configuration, by attaching the rotary connection means 20 to the rotary connection target (framework) before attaching the handrail, it is possible to easily assemble the handrail without lifting the handrail. Moreover, one skeleton 51 and one handrail 11 can be connected without requiring work in a narrow space. It is also easy to install the pivotal connection means 20 vertically or adjust the height of the pivotal connection means 20 to make the handrail 11 and the handrail 12 horizontal.

In this embodiment, the end cover 27 is attached only to the upper surfaces of the second connecting member 22 and the decorative cover material 26. As shown in FIG. With this configuration, the lower surface of the rotary connecting means 20 is opened, so that water or the like does not accumulate inside. However, if such an effect is not expected, the end cover 27 may be attached to the bottom surface.

The sliding connection member 30 is for slidably connecting the handrail 11 and the handrail 12, and is made of extruded aluminum. The sliding connecting member 30 is fixed to one handrail 11 and slidably engaged with a sliding groove 13d formed in the side surface of the other handrail 12. As shown in FIG.

This sliding connecting member 30 has a vertical plate portion 30a fixed to the side surface of one handrail 11, as shown in FIG. 11(a). A projection support portion 30e is formed on one side surface of the vertical plate portion 30a (the surface facing the other handrail 12). is provided. The sliding projection 30f is slidably engaged with the sliding groove 13d of the upper horizontal frame 13 and the sliding groove 15d of the lower horizontal frame 15 described above. Also, on the other side surface of the vertical plate portion 30a (the surface on the one handrail 11 side), a first engaging projection 30b protruding in a rib shape and a bent plate portion 30c protruding in a substantially L shape are formed. there is The first engagement projection 30b is a projection that engages with the opening edges of the slide grooves 13d and 15d when the sliding connection member 30 is fixed to the upper horizontal frame 13 or the lower horizontal frame 15. As shown in FIG. The first engaging projections 30b according to this embodiment are formed in two vertically, and are parallel to each other. The bent plate portion 30c projects horizontally from the lower end of the vertical plate portion 30a, and a second engagement projection 30d that engages with the lower surface of the upper horizontal frame 13 is formed at the tip of the bent plate portion 30c. there is
In this embodiment, two first engaging projections 30b are formed vertically, but the present invention is not limited to this, and two upper and lower projections may be integrated into one projection.

In addition to the first engagement projection 30b or instead of the first engagement projection 30b, recesses (not shown) are provided in the thick portions 13e and 15e of the upper horizontal frame 13 or the lower horizontal frame 15. , and a protrusion may be provided on the vertical plate portion 30a of the sliding connecting member 30, and the recess and the protrusion may be engaged with each other. At this time, the projection provided on the vertical plate portion 30a is formed at a position above the first engaging projection 30b and facing the recess. Even with such a projection, the same effect as that of the first engagement projection 30b can be obtained.

When this sliding connecting member 30 is fixed to the upper lateral frame 13 of one of the handrails 11, as shown in FIG. engage the rim. Also, the second engaging projection 30d is engaged with the engaging groove 13f on the lower surface of the upper lateral frame 13. As shown in FIG. In this state, as shown in FIG. 10A, fasteners 32 such as screws are attached and fixed so as to pass through the vertical plate portion 30a and the thick portion 13e.

Similarly, when the sliding connecting member 30 is fixed to the lower horizontal frame 15 of the handrail 11, the first engaging projection 30b is engaged with the opening edge of the sliding groove 15d of the lower horizontal frame 15. Let Also, the second engaging projection 30d is engaged with the engaging groove 15f on the lower surface of the lower lateral frame 15. As shown in FIG. In this state, as shown in FIG. 10B, fasteners 32 such as screws are attached and fixed so as to pass through the vertical plate portion 30a and the thick portion 15e.

When the sliding connecting member 30 is fixed to one of the handrails 11 in this way, the sliding projection 30f protrudes to the side of the one of the handrails 11. As shown in FIG. By engaging the sliding projection 30f with the sliding groove 13d of the upper horizontal frame 13 or the sliding groove 15d of the lower horizontal frame 15 of the other handrail 12, the handrail 11 and the other handrail 12 can be slid. can be movably connected.

The length of the sliding connecting member 30 in the longitudinal direction of the handrail can be arbitrarily set. In this embodiment, as shown in FIG. 1, the length of the sliding connecting member 30 is set according to the length of the slidably overlapping length of the handrail 11 and the other handrail 12 . For this reason, the sliding connecting member 30 is formed shorter than the length of the handrail 11 and the handrail 12 on the other hand, so that weight and cost can be reduced. Moreover, since the handrail does not need to be provided with a protrusion for sliding, the design is improved.

Moreover, the sliding projection 30f and the sliding grooves 13d and 15d according to the present embodiment are formed in an elliptical shape. By forming the sliding portion in an elliptical shape in this manner, the sliding projection 30f and the sliding grooves 13d and 15d are configured to contact each other at points when viewed in cross section, thereby reducing friction. . By reducing the friction, the sliding portion can slide smoothly.

In addition, the first engaging projection 30b and the second engaging projection 30d facilitate positioning, and by engaging the sliding grooves 13d and 15d and the engaging grooves 13f and 15f, it is possible to withstand horizontal and vertical loads. Since the strength can be improved, it can be firmly fixed.

According to such a configuration, for example, as shown in FIG. 12, even when the two skeletons are displaced in directions D1 and D2, one handrail 11 and the other handrail 12 rotate or slide. This makes it possible to follow the displacement.

As described above, according to this embodiment, the rotary connecting means 20 connecting the one handrail 11 and the one skeleton 51 includes the first connecting member 21 fixed to the one handrail 11 and the one handrail 11. a second connecting member 22 fixed to the frame 51; It is fixed to the vertical frame 16 of one of the handrails 11 by fasteners 24 from the side. According to such a configuration, the rotating connecting means 20 can be attached to the one handrail 11 simply by inserting the vertical frame 16 of the one handrail 11 into the holding portion 21e and fixing it from the side surface with fasteners 24 such as screws. can be done.

That is, since it can be fixed by fasteners 24, such as screws, not from the front surface 16a of one handrail 11 (the surface facing the rotary connection means 20), but from the side surface 16b of the one handrail 11, which has a wider work space, it can be fixed to the other handrail 11. There is no need to work in a narrow space between one of the skeletons 51, and since the handrails are fixed to the rotary connecting means 20 in a state of being horizontal and vertical with respect to the skeleton in advance, the connection work can be easily performed. be able to.

A receiving groove 16h is formed in the side surface 16b of the vertical frame 16 of one of the handrails 11 to which the first connecting member 21 is attached to engage with the tip portion 21g of the holding portion 21e. With such a configuration, the receiving groove 16h can improve the strength against a horizontal load.

In addition, the vertical frame 16 has a side surface (thick portion 16i) formed to be thicker than other portions in order to be fixed to the first connecting member 21 by the fastener 24. As shown in FIG. According to such a configuration, the fixing strength is improved by attaching fasteners 24 such as screws to the side surface (thick portion 16i) of the thick vertical frame 16, and the strength against horizontal and vertical loads is improved. Therefore, it is possible to prevent the first connecting member 21 from coming off.

The first connecting member 21 and the second connecting member 22 are formed with a rotating shaft 21c on one side and a holding groove 22e for rotatably holding the rotating shaft 21c on the other side. 21c has a detent projection 21d projecting from its outer periphery and is supported by the shaft support portion 21b. The retaining groove 22e has a groove 22f formed on its inner peripheral surface for accommodating the detent projection 21d. In addition, a projection 22g facing the shaft support portion 21b is formed on the opening edge, and when the rotation shaft 21c rotates in the holding groove 22e, the anti-rotation projection 21d comes into contact with the groove 22f to support the shaft. The contact of the portion 21b with the convex portion 22g suppresses the rotation of the rotating shaft 21c. According to such a configuration, it is possible to regulate the rotation range of the rotation shaft 21c, and to prevent damage to the protrusions 22g by dispersing the load on the protrusions 22g. In this embodiment, the rotation shaft 21c is formed in the first connecting member 21, and the holding groove 22e is formed in the second connecting member 22. may be formed, and a pivot shaft may be formed in the second connecting member 22 .

Also, the rotation shaft 21c is shorter than the length of the holding groove 22e in the longitudinal direction. According to such a configuration, since the rotation shaft 21c can move up and down inside the holding groove 22e, it is possible to follow the displacement of the frame in the height direction.

Further, the holding groove 22e is provided with a fall prevention means 23 for preventing the rotating shaft 21c from falling out of the lower opening of the holding groove 22e. With such a configuration, it is possible to prevent the rotation shaft 21c from falling off.

Further, a fixture 25 for fixing the second connecting member 22 to one skeleton 51 is provided, and a decorative cover material 26 is attached to the second connecting member 22 so as to cover the fixture 25 . According to such a configuration, since the fixture 25 is not exposed, the design is improved.

An end cover 27 is attached to the upper surface of the decorative cover material 26 . According to such a configuration, it is possible to improve the design and prevent the decorative cover material 26 from coming off.

Moreover, a sliding connecting member 30 for connecting one handrail 11 and the other handrail 12 is provided. The sliding connecting member 30 is fixed to one handrail 11 and formed on the side surface of the other handrail 12. It may be slidably engaged with the slide groove 13d. According to such a configuration, the sliding connecting member 30 can be made to have a minimum necessary length shorter than the length in the longitudinal direction of one of the handrails 11, so that the weight and manufacturing cost can be suppressed. Designability is also improved. In other words, when the handrail is provided with a protrusion that can be slidably engaged as in the conventional structure, the protrusion must be formed over the entire length of the handrail. is provided as a separate member from the handrail, the length of the protruding portion can be adjusted, so there is no need to provide a useless protruding portion.

The upper lateral frame 13 of one handrail 11 and the other handrail 12 is a member having the same cross-sectional shape with a sliding groove 13d formed thereon. The other side surface of the sliding connecting member 30 engages with the sliding groove 13d when the sliding connecting member 30 is fixed to the upper horizontal frame 13. A mating engagement projection 30b is formed. According to such a configuration, since the upper lateral frames 13 of the one handrail 11 and the other handrail 12 can be made of the same member, the manufacturing cost can be suppressed. In addition, the engagement projection 30b improves the strength against horizontal and vertical loads, and facilitates positioning during installation.

Further, the upper horizontal frame 13 has a side wall portion (thick portion 13e) formed to be thicker than other portions in order to fix the slide connecting member 30 with the fastener 32. As shown in FIG. According to such a configuration, by attaching the fasteners 32 such as screws to the thick portion of the upper horizontal frame 13, the fixing strength is improved, and the strength against horizontal and vertical loads is improved. It is possible to prevent the sliding connecting member 30 from coming off.

Further, in this embodiment, as shown in FIG. and the same straight line L parallel to the sliding direction (longitudinal direction) of the other handrail 12 . Therefore, as shown in FIG. 12, even if the two frames are displaced in directions D1 and D2 and one handrail 11 and the other handrail 12 rotate and slide, the one handrail 11 and the other handrail Since the force that pushes and pulls the 12 rotating shafts 21c acts parallel to the sliding direction, they can be slid smoothly. Moreover, since the gap between the sliding grooves 13d and 15d and the sliding protrusion 30f (the width of the protrusion supporting portion 30e) is small, it is possible to slide them more smoothly.

(Modification)
In the above-described embodiment, one of the skeletons 51 is rotatably connected to one handrail 11 , and the other handrail 12 is a slide slidably connected to one handrail 11 . Although the case of dynamic coupling has been described, the embodiment of the present invention is not limited to this. In this modified example, the other handrail 12 is a rotatable connection target that is rotatably connected to the one handrail 11 , and the one skeleton 51 is a sliding member that is slidably connected to the one handrail 11 . An example of a concatenation target will be described.

Expansion joint cover device 10 according to the present modification, as shown in FIG. The other handrail 12 attached to the frame 52 side, the rotary connection means 20 that rotatably connects the one handrail 11 and the other handrail 12, and the one handrail 11 and the one frame 51 slide. A slide connection member 31 for slidably connecting the other handrail 12 and the other frame 52 with the slide connection member 31 for slidably connecting. The one handrail 11 and the other handrail 12 are connected to each other and arranged in the gap 50 between the one frame 51 and the other frame 52 .

As shown in FIG. 13, one handrail 11 and the other handrail 12 are arranged substantially at right angles in a plan view. The side surface of one handrail 11 and one frame 51 are arranged so as to partially overlap each other, and a sliding connecting member 31 is provided in this overlapped portion. Further, the side surface of the other handrail 12 and the other frame 52 are arranged so as to partially overlap each other, and a sliding connecting member 31 is provided in this overlapped portion.
The structures of the one handrail 11 and the other handrail 12 are the same as those of the first embodiment.

Also, the configuration of the rotary connecting means 20 is the same as that of the above-described first embodiment. However, in this modified example, the second connecting member 22 of the rotating connecting means 20 is not fixed to the frame, but is fixed to the vertical frame 16 of the other handrail 12 as shown in FIG.

The sliding connection member 31 is an extruded aluminum profile for slidably connecting the one handrail 11 and the other handrail 12 to the building frame. 12 are slidably engaged with slide grooves 13d and 15d formed on the side surfaces of the plate 12. As shown in FIG.

As shown in FIGS. 14 and 16, the sliding connecting member 31 has a vertical plate portion 31a fixed to the surfaces of one frame 51 and the other frame 52. As shown in FIGS. A projection support portion 31b protrudes from the vertical plate portion 31a, and a slide projection 31c having a substantially elliptical cross section is provided at the tip of the projection support portion 31b. The sliding projection 31c is slidably engaged with the sliding grooves 13d and 15d.

When the sliding connecting member 31 is fixed to the frame, as shown in FIG. 16, the vertical plate portion 31a is brought into contact with the surface of the frame, and a fixture 25 such as an anchor bolt is used to pass through the vertical plate portion 31a. Push it into the body and fix it.

When the sliding connecting member 31 is fixed to the frame in this manner, the sliding projection 31c protrudes to the side of the frame. By engaging the sliding projection 31c with the sliding groove 13d of the upper horizontal frame 13 or the sliding groove 15d of the lower horizontal frame 15, the handrail 11 on one side and the frame 51 on the other side are slidably connected. Also, the other handrail 12 and the other frame 52 can be slidably connected.

Even in such a configuration, for example, as shown in FIG. 17, when the two skeletons are displaced in directions D3 and D4, one handrail 11 and the other handrail 12 rotate or slide. By doing so, it is possible to follow the displacement.

Whether to use the configuration according to this modified example or the configuration according to the above-described first embodiment can be appropriately selected in consideration of the positional relationship of the frame and the gap 50 . Further, when the handrails are arranged on both sides of the passage, the configuration according to the above-described first embodiment may be arranged on both sides, the configuration according to the above-described modification may be arranged on both sides, or the above-described The configuration according to the first embodiment may be arranged on one side, and the configuration according to the modified example described above may be arranged on one side and used in combination.

Also, although not shown, a floor expansion joint cover device may be provided on the floor surface. In this case, the expansion joint cover device 10 according to the above-described first embodiment or the expansion joint cover device 10 according to the above-described modified example is arranged on both sides or one side of the expansion joint cover device for the floor or the upper part. may

10 expansion joint cover device 11 one handrail 12 the other handrail 13 upper horizontal frame 13a top plate portion 13b bottom plate portion 13c one side wall portion 13d sliding groove 13e thick portion 13f engagement groove 13g other side wall portion 15 lower horizontal frame 15a top plate portion 15c one side wall portion 15d sliding groove 15e thick portion 15f engagement groove 15g other side wall portion 16 vertical frame 16a front surface 16b side surface 16c rear surface 16d engagement surface 16e abutment surface 16f exposed surface 16g protrusion 16h Receiving groove 16i Thick portion 16j Locking piece 17 Middle vertical frame 20 Rotating connecting means 21 First connecting member 21a Prismatic portion 21b Shaft support portion 21c Rotating shaft 21d Detent projection 21e Holding portion 21f Protruding plate 21g Tip portion 21h Step 21i fixing piece 22 second connecting member 22a fixing portion 22b side plate portion 22c claw portion 22d groove forming portion 22e holding groove 22f concave groove 22g convex portion 22h locking portion 23 falling-off prevention means 23a nut 23b nut mounting screw 24 fastener 25 fixture 26 decorative cover material 26a first attachment end 26b second attachment end 27 end cover 28 fastener 30 sliding connection member 30a vertical plate portion 30b first engagement projection 30c bent plate portion 30d second engagement projection 30e projection Supporting portion 30f Sliding projection 31 Sliding connecting member 31a Vertical plate portion 31b Projection supporting portion 31c Sliding projection 32 Fastener 50 Gap 51 One frame 52 The other frame L Straight line

Claims (11)

One handrail attached to one frame side and the other handrail attached to the other frame side are provided, and the one handrail and the other handrail are connected to connect the one handrail and the other handrail. An expansion joint cover device arranged in a gap between the skeletons,
The one handrail and the other handrail are formed by framing four sides of two vertical frames, an upper horizontal frame, and a lower horizontal frame,
The one handrail is rotatably connected to the one skeleton and slidably connected to the other handrail ,
Rotating connection means for connecting the one handrail and the one skeleton includes a first connection member fixed to the one handrail and a second connection member fixed to the one skeleton ,
The first connecting member includes a holding portion that supports the vertical frame of the one handrail,
The holding part is fixed to the vertical frame of the one handrail by a fastener from the side surface of the one handrail,
An expansion joint cover device, wherein a side surface of the vertical frame of the one handrail to which the first connecting member is attached is formed with a receiving groove that engages with a tip portion of the holding portion. One handrail attached to one frame side and the other handrail attached to the other frame side are provided, and the one handrail and the other handrail are connected to connect the one handrail and the other handrail. An expansion joint cover device arranged in a gap between the skeletons,
The one handrail and the other handrail are formed by framing four sides of two vertical frames, an upper horizontal frame, and a lower horizontal frame,
The one handrail is rotatably connected to the one skeleton and slidably connected to the other handrail ,
Rotating connection means for connecting the one handrail and the one skeleton includes a first connection member fixed to the one handrail and a second connection member fixed to the one skeleton ,
The first connecting member includes a holding portion that supports the vertical frame of the one handrail,
The holding part is fixed to the vertical frame of the one handrail by a fastener from the side surface of the one handrail,
One of the first connecting member and the second connecting member is formed with a rotation shaft, and the other is formed with a holding groove for rotatably holding the rotation shaft,
The rotating shaft has a detent projection protruding from its outer circumference and is supported by a shaft support,
The holding groove has a concave groove for accommodating the anti-rotation protrusion formed on the inner peripheral surface thereof, and a convex portion facing the shaft support portion is formed on the opening edge,
When the rotating shaft rotates in the holding groove, the anti-rotation projection abuts against the recessed groove and the shaft support portion abuts against the protrusion, thereby suppressing rotation of the rotating shaft. expansion joint cover device. One handrail attached to one frame side and the other handrail attached to the other frame side are provided, and the one handrail and the other handrail are connected to connect the one handrail and the other handrail. An expansion joint cover device arranged in a gap between the skeletons,
The one handrail and the other handrail are formed by framing four sides of two vertical frames, an upper horizontal frame, and a lower horizontal frame,
The one handrail is rotatably connected to the one skeleton and slidably connected to the other handrail ,
Rotating connection means for connecting the one handrail and the one skeleton includes a first connection member fixed to the one handrail and a second connection member fixed to the one skeleton ,
The first connecting member includes a holding portion that supports the vertical frame of the one handrail,
The holding part is fixed to the vertical frame of the one handrail by a fastener from the side surface of the one handrail,
A side surface of the vertical frame of the one handrail to which the first connecting member is attached is formed with a receiving groove that engages with a tip portion of the holding portion,
One of the first connecting member and the second connecting member is formed with a rotation shaft, and the other is formed with a holding groove for rotatably holding the rotation shaft,
The rotating shaft has a detent projection protruding from its outer circumference and is supported by a shaft support,
The holding groove has a concave groove for accommodating the anti-rotation protrusion formed on the inner peripheral surface thereof, and a convex portion facing the shaft support portion is formed on the opening edge,
When the rotating shaft rotates in the holding groove, the anti-rotation protrusion abuts against the recessed groove and the shaft support portion abuts against the protrusion, thereby suppressing rotation of the rotating shaft. expansion joint cover device. 4. The expansion joint cover device according to claim 2 , wherein said rotating shaft is shorter than the longitudinal length of said holding groove. The expansion joint cover according to any one of claims 2 to 4 , wherein the holding groove is provided with drop-off prevention means for preventing the rotation shaft from dropping out of the lower opening of the holding groove. Device. One handrail attached to one frame side and the other handrail attached to the other frame side are provided, and the one handrail and the other handrail are connected to connect the one handrail and the other handrail. An expansion joint cover device arranged in a gap between the skeletons,
The one handrail and the other handrail are formed by framing four sides of two vertical frames, an upper horizontal frame, and a lower horizontal frame,
The one handrail is rotatably connected to the one skeleton and slidably connected to the other handrail ,
Rotating connection means for connecting the one handrail and the one skeleton includes a first connection member fixed to the one handrail and a second connection member fixed to the one skeleton ,
The first connecting member includes a holding portion that supports the vertical frame of the one handrail,
The holding part is fixed to the vertical frame of the one handrail by a fastener from the side surface of the one handrail,
A fixture for fixing the second connecting member to the one skeleton,
A decorative cover material is attached to the second connecting member so as to cover the fixture,
An expansion joint cover device in which an end cover is attached to the upper surface of the decorative cover material . A fixture for fixing the second connecting member to the one skeleton ,
A decorative cover material is attached to the second connecting member so as to cover the fixture,
The expansion joint cover device according to any one of claims 1 to 5 , wherein an end cover is attached to the upper surface of the decorative cover material . The expansion joint cover according to any one of claims 1 to 7 , wherein the vertical frame has a side surface formed to be thicker than other portions in order to be fixed to the first connecting member with fasteners. Device. A sliding connection member that connects the one handrail and the other handrail ,
The sliding connecting member is fixed to the one handrail and slidably engages a sliding groove formed on the side surface of the other handrail. The expansion joint cover device according to . The upper lateral frame of the one handrail and the other handrail are members having the same cross-sectional shape and forming the sliding groove,
A sliding protrusion slidably engaged with the sliding groove is formed on one side surface of the sliding connecting member,
10. The expansion according to claim 9, wherein the other side surface of said sliding connecting member is formed with an engaging projection that engages with said sliding groove when said sliding connecting member is fixed to said upper horizontal frame. Joint cover device. 11. The expansion joint cover device according to claim 10, wherein said upper horizontal frame has a side wall portion formed thicker than other portions for fixing said sliding connecting member with fasteners.

Images