Baseboard for stair railing frame

Abstract

This invention provides a baseboard for stair railing frames that enables stable installation on stair railing frames, particularly those installed in the stair openings of wedge-type scaffolding, and allows for gap-free stacking during storage and transportation. [Solution] A toeboard for a stair railing frame has a plate-shaped stringer-side toeboard body erected along the stair opening by having a stringer-side support fixing fitting at one end that can be attached and fixed to a support member of the stair railing frame, and a plate-shaped end-side toeboard body erected along the stair opening by having a end-side support fixing fitting at one end that can be attached and fixed to a support member with a fastening part of the stair railing frame, the stringer-side toeboard body and the end-side toeboard body are rotatably connected at the other end, and the end-side toeboard is extendable and retractable, characterized in that a hook portion is provided on one surface of the stringer-side toeboard body that can be locked to an intermediate support member of the stair railing frame.

Description

Technical Field

[0001] The present invention relates to a stringer for a staircase handrail frame installed on a staircase handrail frame provided at a staircase opening of a wedge-tightened scaffold.

Background Art

[0002] Conventionally, a staircase handrail frame is provided for the purpose of preventing falls from a staircase opening at a construction site, and a stringer for the staircase handrail frame is attached to the staircase handrail frame along the opening edge of the staircase opening for the purpose of preventing the fall of objects or the like from the staircase opening to the inside of the staircase.

[0003] The basic configuration of the above-mentioned stringer for a staircase handrail frame is disclosed as a plate-shaped body having a required width and length that is attached to a support provided on the staircase handrail frame and erected along two sides across the opening corner, as in the following prior art documents.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] Now, there are various types of staircase handrail frames, and stable installation corresponding to each aspect of the supports provided on the staircase handrail frame is required for the stringer for the staircase handrail frame.

[0006] For example, in a staircase handrail frame where there are no supports at the corners of the staircase opening, only fixing to the supports at two points on the girder side and the eaves side may not necessarily be evaluated as stable installation in an environment such as a high-rise site.

[0007] On the other hand, when storing and transporting the plate-shaped baseboards for stair railings in unused condition, it is common practice to stack multiple pieces and secure them with steel strapping during packaging or with lashing belts during truck transport. However, from the standpoint of ensuring uniformity in the stacking state and preventing damage to the product, it is desirable to have as little gap as possible between the stacked baseboard pieces. [Overview of the project] [Problems that the invention aims to solve]

[0008] The present invention has been made in view of the above problems, and provides a baseboard for a stair railing frame that can be stably installed on a stair railing frame, especially on a stair railing frame installed in the stair opening of a wedge-type scaffolding, and that can be stacked without gaps when stored and transported. [Means for solving the problem]

[0009] The present invention relates to a baseboard for a stair railing frame, as described in claim 1, comprising a plate-shaped stringer-side baseboard body erected along a stair opening by providing a stringer-side support fixing fitting at one end for attachment and fixing to a support member of a stair railing frame, and a plate-shaped end-side baseboard body erected along a stair opening by providing an end-side support fixing fitting at one end for attachment and fixing to a support member with a fastening part of a stair railing frame, wherein a hook portion is provided on one surface of the stringer-side baseboard body for locking to an intermediate support member of a stair railing frame.

[0010] As described in claim 2, the present invention is characterized in that, in the toeboard for a stair railing frame described in claim 1, the stringer-side toeboard body and the gable-side toeboard body are rotatably connected at the other end.

[0011] As described in claim 3, the present invention is characterized in that, in the baseboard for a stair railing frame described in claim 1, the end baseboard body is expandable and retractable.

[0012] As described in claim 4, the present invention is characterized in that, in the toeboard for a stair railing frame described in claim 1, the stringer-side toeboard body and the gable-side toeboard body are rotatably connected at the other end, and the gable-side toeboard body is extendable and retractable.

[0013] As described in claim 5, the present invention is characterized in that, in a stair railing frame baseboard as described in any one of claims 1 to 4, a rectangular plate-shaped plate for receiving a rotating fitting is provided at the location where the stringer-side baseboard body and the end-side baseboard body are connected.

[0014] As described in claim 6, the present invention relates to a baseboard for a stair railing frame as described in any one of claims 1 to 4, wherein the end post fixing fitting is rotatably attached to the end baseboard body and slidably attached along the other end of the end baseboard body, and a storage slit is formed therein, and a storage stopper fitting is installed on one surface of the stringer side baseboard body into which the storage slit can be inserted when the stringer side baseboard body and the end baseboard body are folded.

[0015] As described in claim 7, the present invention relates to a stair railing frame baseboard as described in any one of claims 1 to 4, characterized in that a rectangular plate for receiving a rotating fitting is provided at the location where the stringer-side baseboard body and the end-side baseboard body are connected, the end-side support fixing fitting is rotatably attached to the end-side baseboard body and slidably attached along the other end of the end-side baseboard body, a storage slit is formed, and a storage stopper fitting is installed on one surface of the stringer-side baseboard body into which the storage slit can be inserted when the stringer-side baseboard body and the end-side baseboard body are folded.

[0016] [Effects of the Invention]

[0017] Since the present invention adopts the configuration as described in claims 1 to 7, in the width timber for a staircase handrail frame, it is possible to stably install it with respect to the staircase handrail frame, and it is possible to stack it without gaps during storage and transportation.

Brief Description of the Drawings

[0018] [Figure 1] It is a perspective view showing a state where a staircase handrail frame with width timbers installed is installed in a staircase opening. [Figure 2] It is a perspective view showing a state where a staircase handrail frame with width timbers installed is installed in a staircase opening. [Figure 3] It is a perspective view showing an embodiment of the installation state of the width timber for a staircase handrail frame of the present invention. [Figure 4] It is a perspective view showing an embodiment of the installation state of the width timber for a staircase handrail frame of the present invention. [Figure 5] It is a rear view showing an embodiment of the width timber for a staircase handrail frame of the present invention in a deployed state. [Figure 6] It is a plan view showing an embodiment of the width timber for a staircase handrail frame of the present invention in a deployed state. [Figure 7] It is a side view showing an embodiment of the width timber for a staircase handrail frame of the present invention in a deployed state. [Figure 8] It is a plan view showing an embodiment of the width timber for a staircase handrail frame of the present invention in a folded state. [Figure 9] It is a plan view showing an embodiment of the width timber for a staircase handrail frame of the present invention in a folded and stacked state. [Figure 10] It is a perspective view showing an embodiment of the hook portion of the width timber for a staircase handrail frame of the present invention. [Figure 11] It is a perspective view showing an embodiment of the hook portion of the width timber for a staircase handrail frame of the present invention. [Figure 12] It is a view showing an embodiment of the fixing fitting for the gable-side strut of the width timber for a staircase handrail frame of the present invention. [Figure 13] It is a view showing an embodiment of the fixing fitting for the gable-side strut of the width timber for a staircase handrail frame of the present invention. [Figure 14]This figure shows one embodiment of the fixing bracket for the end post of a baseboard for a stair railing frame according to the present invention. [Figure 15] This is a front view showing one embodiment of the base plate for a stair railing frame according to the present invention. [Modes for carrying out the invention]

[0019] The following describes in detail the baseboard for stair railing frames according to the present invention.

[0020] As shown in Figures 1 to 4, the baseboard for a stair railing frame according to the present invention is erected on the stair railing frame X along the opening edge of the stair opening, and the stringer-side baseboard body 1 and the end-side baseboard body 2, which are plate-shaped, are connected via pivot means so that they can be in a state in which the baseboard bodies are expanded perpendicularly to each other (for example, the state when installed) and a folded state in which they are joined together (for example, the state when stored and transported) (see Figures 5 to 9).

[0021] Furthermore, the end-side baseboard body 2 is configured to be expandable and contractible via known means as appropriate to allow length adjustment. For example, as shown in the embodiment in Figure 7, the end-side baseboard body 2 consists of a base plate portion 2A connected to the girder-side baseboard body and a movable plate portion 2B slidably supported on the base plate portion 2A. The movable plate portion 2B has an elongated hole 2H extending in the horizontal direction, and the base plate portion 2A is provided with a fastening means (not shown) consisting of a bolt inserted into the elongated hole 2H, a nut screwed onto the bolt, and a fixing plate supporting the bolt and nut. This allows the movable plate portion 2B to be moved horizontally relative to the base plate portion 2A and then fastened and fixed.

[0022] The form of the plate-like material used for the baseboard itself can be selected as appropriate, but considering the total weight, durability, and ease of folding, it is assumed that the material will be made by bending a sheet of steel four or six times using a metal bender, as shown in the embodiment.

[0023] The technical feature of this invention is that a hook portion 3 is provided on one side of the girder-side baseboard body 1, which can be locked onto a support column P located near the middle of the handrail frame.

[0024] In other words, as described above, in the present invention, the toe board is attached to the support column of the handrail frame via support column fixing fittings 1K2K provided at the end of the girder side toe board body 1 and the end of the gable side toe board body 2. However, in order to ensure complete safety even in harsh conditions such as strong winds at high-rise construction sites, a member for locking to the intermediate support column provided along the girder side opening edge is provided on the girder side toe board body.

[0025] A hook portion 3 is provided on one side of the beam-side baseboard body 1, that is, the side that is located on the handrail frame side when the baseboard is installed.

[0026] The shape and installation method of the hook portion 3 are not particularly limited as long as they can be stably locked to the cylindrical support column. For example, in the embodiments shown in Figures 10 and 11, the hook portion 3 has an L-shaped bent end 3L at one end of the thin rod body and a right-angle bent end 3R at the other end. Considering the positional relationship between the installation location of the baseboard and the support column to be locked, the hook portion 3G has a hook fixing portion 3F that allows the thin rod body to slide horizontally, and a hook receiving portion 3G that has an elongated hole through which the right-angle bent end 3R can be inserted when it is standing upright in the direction of the support column P. The hook receiving portion 3G is provided in parallel on one surface of the girder-side baseboard body 1, protruding in the direction of the support column P (when the baseboard body is installed).

[0027] When the hook portion is not in use, the right-angle bent end 3R is inserted into the elongated hole of the hook receiving portion 3G and locked in place. When the hook portion is in use, the hook portion is slid in the direction of the support column, causing the L-shaped bent end 3L to come into contact with the support column P and hook onto the outside (opening side) of the support column to lock in place.

[0028] When the hook portion is in use, that is, when the L-shaped bent end 3L of the thin rod body is locked to the support column P, the right-angle bent end 3R is detached from the elongated hole of the hook receiving portion 3G. However, the right-angle bent end 3R, which is tilted by its own weight when locked to the support column, maintains contact with the hook receiving portion 3G formed on the rectangular frame protruding in the direction of the support column. Furthermore, by designing it in consideration of its positional relationship with the support column P, the hook portion acts as a bracing rod between the support column and the hook receiving portion when locked, thereby maintaining the locked state of the hook portion well, preventing the erected baseboard body from falling towards the floor-mounted frame, and enabling stable installation of the baseboard body relative to the handrail frame.

[0029] Furthermore, if the support posts of the stair railing frame are made of aluminum, for example, using the common method of fixing them by biting into bolts, as is common with iron posts, can easily cause damage. However, by using the hook portion to secure the support post, as in the present invention, it is possible to reduce wear and tear on the aluminum support post.

[0030] As described above, the toeboard for a stair railing frame according to the present invention has a stringer-side toeboard body 1 and a gable-side toeboard body 2 that are rotatably connected. However, if the two toeboard bodies are simply connected to each other via a rotating fitting or the like, a gap will be formed at the contact surface with the floor-mounted frame, which poses a risk of falls and scattering.

[0031] However, in the baseboard for a stair railing frame according to the present invention, for example, as shown in Figure 15, a rectangular plate-shaped plate 4 having a width shorter than the total width of the baseboard body (vertical direction when the baseboard body is installed) is integrally attached to the connecting end of the stringer-side baseboard body 1, and the plate 4 is used as a pivot member for the rotating fitting C receiver.

[0032] By installing the plate 4 described above at the connection point between the stringer-side baseboard body and the end-side baseboard body, it becomes possible to minimize the gap between the mounting surface with the floor-mounted frame Y and the frame Y without interference with the frame Y's gripping hardware, thereby preventing unforeseen problems at the stair opening.

[0033] In the baseboard for a stair railing frame according to the present invention, each end of the baseboard body is provided with a support fixing bracket 1K2K that can be attached to a support column arranged in the stair railing frame. The form of the fixing bracket is not particularly limited and can be selected as appropriate, but as shown in the illustrated embodiment, it is preferable to use a U-shaped bracket.

[0034] In stair railing frames with upright support columns in the middle, the baseboards for the railing frames are installed on the outside of the railing frame (opposite the opening). Therefore, the support column fixing brackets on each baseboard cannot be connected in a straight line with the baseboard itself. For example, when the baseboard is installed, the brackets are installed side by side, protruding from the baseboard in the direction of the railing frame.

[0035] As described above, when the baseboard is installed, the support post fixing bracket protrudes in the direction of the support post of the handrail frame. However, since the end-side support post fixing bracket 2K is rotatably and slidably mounted on the end-side baseboard body 2, when storing or transporting it in an unused state, it can be released from its installed state and folded together with the body.

[0036] Each of the rotation and sliding means, for example as in the embodiments shown in Figures 12 to 14, involves drilling an elongated hole 2T in the bent edge formed at one end of the gable baseboard body 2, and providing a fastening means consisting of a bolt inserted into the elongated hole 2T and a nut screwed onto the bolt, thereby rotating and sliding the gable support fixing bracket 2K relative to the gable baseboard body 2 by fastening and loosening the fastening means.

[0037] The folding process of the baseboard itself will be explained below according to the work procedure.

[0038] The beam-side baseboard body 1 and the gable-side baseboard body 2 are folded together with the beam-side baseboard body 1 at the bottom.

[0039] Rotate the gable end support fixing bracket 2K 90 degrees from its initial position so that the open side of the U-shaped bracket faces the girder end support fixing bracket.

[0040] Slide the gable end support fixing bracket 2K towards the center until the side of the U-shaped bracket abuts against the side wall of the main body of the beam side baseboard.

[0041] Slide the end-side baseboard body until the storage slit KS provided in the end-side support fixing bracket 2K is inserted into the storage stopper 1S provided in the girder-side baseboard body 1.

[0042] The storage slit 1S provided in the end-side support fixing bracket 2K is designed so that when folded, the open surface faces the support fixing bracket direction of the main body of the girder-side baseboard. While the form is not limited, it is conceivable that, for example, as shown in the illustrated embodiment, a linear notch extending horizontally in the main body is provided on one side of the U-shaped bracket.

[0043] Furthermore, the retaining fastener 1S provided on the girder-side baseboard body 1 is located near the center of the surface that overlaps with the end-side baseboard body when the girder-side baseboard body is folded. While its form is not limited, for example, as shown in the illustrated embodiment, a strip-shaped thin plate material is installed across both side walls of the girder-side baseboard body, allowing it to be inserted perpendicular to the retaining slit.

[0044] Furthermore, to prevent shifting during packaging, it is preferable to join the overlapping surfaces via a convex member such as a rivet and a concave member. Note that the convex member is not limited to a rivet; for example, resin parts or sheet metal that has been processed by burring, doweling, cutting and bending may also be used.

[0045] For example, when scaffolding is erected on the east and west sides of a building, the positions of the stair opening and the floor-mounted frame will be reversed. However, in the baseboard for stair railing frames according to the present invention, the upper and lower structures of the baseboard are made almost symmetrical so that it can be installed in either the left or right direction. [Explanation of Symbols]

[0046] 1st beam side baseboard 2. Baseboard body on the side of the wife 2K Wife-side support post fixing bracket 3. Hook section 3L L-shaped bent end 3R right angle bent end 3F Hook fixing part 3G hook receiver 4 plates

Claims

1. A baseboard for a stair railing frame, comprising a plate-shaped stringer-side baseboard body erected along the stair opening by having a stringer-side support fixing fitting at one end that can be attached and fixed to a support member of the stair railing frame, and a plate-shaped end-side baseboard body erected along the stair opening by having a end-side support fixing fitting at one end that can be attached and fixed to a support member with a fastening part of the stair railing frame, wherein a hook portion is provided on one surface of the stringer-side baseboard body that can be locked to an intermediate support member of the stair railing frame.

2. The toeboard for a stair railing frame according to claim 1, characterized in that the girder-side toeboard body and the end-side toeboard body are rotatably connected at their other ends.

3. The baseboard for a stair railing frame according to claim 1, characterized in that the baseboard body on the gable end is expandable and retractable.

4. The toeboard for a stair railing frame according to claim 1, characterized in that the girder-side toeboard body and the end-side toeboard body are rotatably connected at their other ends, and the end-side toeboard body is extendable and retractable.

5. A stair railing frame baseboard according to any one of claims 1 to 4, characterized in that a rectangular plate-shaped plate for receiving a rotating fitting is provided at the location where the beam-side baseboard body and the end-side baseboard body are connected.

6. The end post fixing bracket is rotatably attached to the end baseboard body and slidably attached along the other end of the end baseboard body, and has a storage slit formed therein, and a storage stopper is installed on one surface of the stringer side baseboard body into which the storage slit can be inserted when the stringer side baseboard body and the end baseboard body are folded, characterized in that a baseboard for a stair railing frame according to any one of claims 1 to 4.

7. A rectangular plate-shaped plate for receiving a rotating fitting is provided at the location where the girder-side baseboard body and the end-side baseboard body are connected, the end-side support fixing fitting is rotatably attached to the end-side baseboard body and slidably attached along the other end of the end-side baseboard body, and a storage slit is formed therein, and a storage stopper fitting is installed on one surface of the girder-side baseboard body into which the storage slit can be inserted when the girder-side baseboard body and the end-side baseboard body are folded, characterized in that a baseboard for a stair railing frame according to any one of claims 1 to 4

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