JP3056057U - Folding handrail - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A folding handrail which can be folded inward on the sidewalk, provided at the end of a sidewalk having a step, for cleaning an interior plate or the like in a tunnel directly from a cleaning vehicle on a roadway. To provide. An upright beam is provided by an upright column.
The upright fixing means 1A which holds the support of the handrail 1 connected by the upright on a base 1c fixed to the end of the sidewalk 2 having a step in the tunnel 4 and falls down on the inside of the sidewalk.
In this state, the handrail is cleaned from the cleaning vehicle on the roadway 3 and the interior plate 4a in the tunnel is cleaned directly from the handrail.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a handrail for safety assurance provided at the end of a stepped sidewalk in a tunnel such as a highway, for cleaning interior boards and the like in the tunnel directly from a cleaning vehicle on the roadway. The present invention relates to a folding handrail that can be folded inside.

[0002]

[Prior art]

 The prior art handrail is a method in which a pillar of the handrail is removably inserted into an insertion hole provided at the end of the sidewalk, which is detachable by a worker at an end of a sidewalk having a step in a tunnel such as a highway. Was common.

[0003] The conventional folding handrail is disclosed in Japanese Unexamined Patent Application Publication No. 9-59946, in which a fixed handrail post is dissociated from a fixed base fixed to an end of a sidewalk having a step, and the handrail is fixed to the side wall of the sidewalk. There has been a collapsible handrail with pivotable connecting means and upright locking means that fall down along.

[0004]

[Problems to be solved by the invention]

 The conventional method of detachably inserting the handrail post into the insertion hole requires a time and effort to insert the handrail into the insertion hole again after the cleaning operation, and it takes time to reinstall.

[0005] In the conventional handrails described in Japanese Patent Application Laid-Open No. 9-59946, the handrails fall down to the side of the road along the sidewalk steps, so that handrails require only manual labor to fall and re-install. Therefore, it is necessary to perform the work of overturning and re-installing the handrail by restricting the road on the roadway, and the angle of overturn of the support post becomes close to 180 degrees, so that the rotatable connecting means and the upright locking means have a complicated structure. However, there is a problem that the cost is too high and there is a risk of failure.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the retractable handrail of the present invention stands upright by a support, connects the upper part with a beam, and provides a plate-shaped base fixed at the end of the sidewalk. In addition, there is provided an upright fixing means for holding the support upright and tilting about 90 degrees on the inner side of the sidewalk, and has a simple structure so that the handrail can be easily overturned and reinstalled.

[0007]

[Embodiment of the invention]

 The retractable handrail of the present invention is used as a handrail for securing safety at the end of a sidewalk with a step in a tunnel such as an expressway, and the interior board etc. inside the tunnel is directly from the cleaning vehicle on the roadway. The handrail, which can be tilted inward on the sidewalk to perform cleaning work, stands upright at the end of the sidewalk with a tube-shaped column, and is constructed by connecting the upper part with a beam, and walks upright along the sidewalk end. A base in the form of a plate fixed to the end of the sidewalk with an anchor member or the like is provided on the sidewalk at the base of the column, and the column is held upright on the base, It is characterized by having a tiltable upright fixing means that can be tilted on the inside of the sidewalk.

[0008] In the folding handrail of the present invention, the folding upright fixing means fixes a plate having a U-shaped opening capable of fitting the support column on the base toward the inside of the sidewalk, and fixes the support column. A plate-shaped holding member is provided at the lower end, and the column is pivotally attached to the lower part of the plate using a shaft-fixing member such as a bolt and a nut so that the column can be freely tilted inside the sidewalk. In order to maintain the upright of the column, a notch is provided to allow the longitudinal plate of the L-shaped stop member to be fitted, and hinges are provided on both sides of one of the notches, and the L-shaped intersection of the stop member is provided. The hinge and the hinge are pinched and axially fixed using a shaft-fixing member such as a bolt and a nut, and a shaft hole of the stopper when the column is upright is extended and opened along the L-shaped bottom to form a longitudinal opening. The end of the opening is an opening with a wider width inside the L-shape. It is characterized by.

[0009] In the method of the present invention, the method of manually inverting the support of the handrail into the sidewalk on the side of the sidewalk by holding the L-shaped stop member fitted in the notch on the upper side of the plate keeps the horizontal. While lifting vertically upward, the lower part of the stopper is released from the cut in the upper part of the plate, and the stopper is turned completely around the axis of the hinged fixing member of the hinge, and then the stopper is removed. The method of dropping the upright post on the sidewalk while manually uprighting the post again involves fitting the post upright inside the plate, then rotating the released stop member and lowering the lower portion of the stop member. Is fitted into the cut-out upper part of the plate, and the upper part of the stopper is pressed down while being kept horizontal, and is completely fitted to fix the support upright.

[0010] In the tiltable upright fixing means of the folding handrail of the present invention, a shaft hole at the time when the supporting member stands upright is extended and opened along the L-shaped bottom to form a longitudinal opening, and the end of the opening is formed. Since the width of the opening is further enlarged inside the L-shape, when the support of the handrail is dropped on the sidewalk, the lower part of the stop member fitted into the notch on the upper side of the plate is lifted vertically upward while maintaining the horizontal position. When the lower part of the stopper is released from the cut in the upper part of the plate, the axis of the hinged fixing member of the hinge reaches the enlarged opening of the stopper, so that the movement of the stopper becomes immediate, and the detachment becomes possible. It has an action that can be confirmed manually, and when the support is to be erected again, the released stop member is rotated, and when the lower portion of the stop member is fitted to the upper part of the plate cut, the stop member is used. Can move freely. This has the effect that the fitting can be easily and accurately achieved by movement.

In the collapsible handrail of the present invention, to connect the column and the beam, a cylindrical member is fixed on the column, the beam is passed through the cylindrical member, and the beam is fixed by a fixing member such as a bolt. The handrails that can be easily assembled can also be used for connection by a socket method that incorporates a spring or the like.

[0012]

【Example】

 In the drawings of the embodiment of the present invention, FIG. 1 is a partially cutaway sectional view showing a state in which a folding handrail is folded down on a sidewalk, FIG. Fig. 4 is a front view of a partially-mounted portion in an upright state on the sidewalk, Fig. 4 is a state of standing upright on a sidewalk, (A) is an enlarged rear view of a partially-mounted portion, (B) is an enlarged side view of a partially-mounted portion, FIGS. 5A and 5B are enlarged rear views of a partly omitted state, and FIGS.

An embodiment of the present invention will be described below. As shown in FIG. 2, a collapsible handrail is provided at the end of a sidewalk (2) having a step in a tunnel (4) of a highway. As shown in FIG. 1, the handrail is used as a handrail for cleaning the interior plate (4a) in the tunnel from a cleaning vehicle on the roadway (3). Is intended to perform the work from above the cleaning vehicle by falling on the sidewalk, and the handrail is constructed upright at the end of the sidewalk by a tubular pillar (1a) and the upper part is connected by a beam (1b). As shown in FIG. 3, there is a step from the road, and the pedestrian stands upright along the side of the sidewalk having an emergency staircase (2a) or the like to secure the safety of pedestrians. On the sidewalk, as shown in FIG. 4, a plate-shaped base (1) fixed to an end of the sidewalk by an anchor member (1i). c), the column is held upright on the base, and the collapsible upright fixing means (1A) which can be folded on the sidewalk has an opening having a U-shaped cross section in which the column can be fitted. A plate (1d) to be fixed is fixed on the base toward the side of the sidewalk, and a plate-shaped holding member (1g) is provided at the base end of the column. A holding member (1h) such as a bolt and a nut is axially attached to the holding member, and an L-shaped stopper (1f) is provided on the upper side surface of the plate to maintain the support upright. The hinge (1e) is provided on both sides of one of the cuts, and the intersection of the L-shaped stop member and the hinge are connected to a shaft fixing member (such as a bolt or a nut). 1h), and the shaft hole of the stopper when the support is upright is L-shaped. The extended open longitudinal opening is provided along the section, further characterized in that the opening of an enlarged width opening end in an L-shape inside.

In the present embodiment, the method of manually turning the support (1a) of the handrail (1) on the sidewalk (2) in the means for holding the handrail (1A) upright is described in the upper part of the plate (1d). As shown in FIG. 5 (A), the lower part of the stop member (1f) fitted in the side cut is lifted vertically upward while keeping the lower part horizontal, and the lower part of the stop member is detached from the upper cut of the plate. Using the axis of the hinged fixing member (1h) of the hinge (1e) as a rotation axis, as shown in FIG. 5 (A), the stop member is rotated and completely released. 5 (B), the pillar is manually erected, and the pillar is manually erected by fitting the stanchion inside the plate and then rotating the released stop member. , The lower part of the stopper is fitted to the upper part of the notch, and the upper part of the stopper is It is characterized in that it is pressed down while maintaining its horizontal position, is completely fitted, and the column is fixed upright.

[0015]

[Effect of the invention]

 The present invention is implemented in the form described above, and has the following effects.

[0016] The folding handrail of the present invention is such that a pillar having a pillar-shaped base provided at the end of the sidewalk and having the pillar held upright can be tilted inward on the sidewalk by means of the folding and upright fixing means. This has the effect that the handrails can be rolled over and reinstalled safely and safely without any road regulation, and the interior panels in the tunnel can be cleaned from the cleaning vehicles on the road. .

In the folding handrail according to the present invention, the means for fixing the uprights of the pillars keeps the pillars upright on the base and can only be folded down about 90 degrees on the sidewalk, so that the structure is simplified. By simply releasing and fixing the one stop member that holds the support upright, the work efficiency is good and the handrail can be easily overturned and re-installed, as well as with few failures and at low cost. Has the effect of being able to provide

In the retractable handrail of the present invention, the stopper for releasing and fixing the upright holding of the column is formed as an elongated hole along the L-shaped bottom. It is lifted and released vertically upward while maintaining the same, and is not released unless it is combined with a rotating motion. Therefore, it is not released by constant vibration or unexpected external force, and has the effect of ensuring safety.

[Brief description of the drawings]

FIG. 1 is a partially cut-away cross-sectional view showing an embodiment of the present invention in a state where a folding handrail is folded down on a sidewalk.

FIG. 2 is a partially cutaway cross-sectional view showing an embodiment of the present invention, with a retractable handrail standing upright on a sidewalk.

FIG. 3 is a partially cutaway front view showing the embodiment of the present invention, with the folding handrail standing upright on a sidewalk.

4A and 4B show an embodiment of the present invention, in which a folding handrail is upright on a sidewalk, FIG.
Is a partially omitted enlarged side view.

FIGS. 5A and 5B are rear views of a partially omitted enlarged view and FIGS. 5B and 5B are enlarged side views of a partially undeployed state in which a folding handrail is folded down on a sidewalk, showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail 1A Foldable and upright fixing means 1a Support 1b Beam 1c Base 1d plate 1e Hinge 1f Stopping member 1g Holding member 1h Axle fixing member 1i Anchor member 2 Sidewalk 2a Stairway 3 Roadway 4 Tunnel 4a Interior plate

Claims (2)

[Utility model registration claims] 1. A base having a handrail (1) which is upright by a support (1a) and whose upper part is connected by a beam (1b), is fixed to an end of a sidewalk (2) having a step in a tunnel (4). (1c) A cleaning vehicle on a roadway (3) in a state in which the upright holding means (1A) is held upright on the sidewalk and tilted inward on the sidewalk, and the handrail is tilted inward on the sidewalk. A collapsible handrail for cleaning interior panels (4a) in a tunnel directly from above. 2. The tiltable and upright fixing means (1A) mounts a plate (1d) having a U-shaped cross section into which a support (1a) is fitted on a base (1c) facing the inside of a sidewalk. A fixing member (1g) is provided at the lower end of the support, and the support is pivotally attached to the lower part of the plate by using a fixing member (1h). Notches are provided on both sides of the upper part so that the longitudinal plate portion of the stop member (1f) of the L-shaped plate member for maintaining the upright of the support can be fitted.
e), the L-shaped intersection of the stop member and the hinge are pinched and axially fixed using a shaft-fixing member (1h), and a shaft hole of the stop member when the support is upright is formed along the L-shaped bottom. 2. The collapsible handrail according to claim 1, wherein the extension is extended to form a longitudinal opening, and the end of the opening is an opening having a width further enlarged inside the L-shape.