JPH033031B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in a handrail device for telescoping and movable stair-shaped bleachers installed in a room with a wide floor such as a gymnasium.

Conventional technology and its problems Conventionally, in telescoping and movable staircase-like bleachers installed to enable multi-purpose use of large indoor spaces such as gymnasiums, in order to ensure the safety of spectators, each tier has been A structure in which handrail devices are provided at both ends of a movable bed is known, for example, from Japanese Patent Laid-Open No. 60-238576.

However, in the conventionally known device described above, the lower ends of the front and rear columns are attached to the respective side ends of the movable platform of each stage, so that the rear column is tilted forward, and the rear column is moved more than the front column. It is erected in a state that is offset outward from the edge of the floor platform, and by supporting the front and rear at the upper ends of the front and rear columns of each tier, handrail rods are provided respectively, and furthermore, a handrail is provided between the front and rear columns of each tier. Since a side wall panel is attached to the wall, there are disadvantages as described below.

In other words, the relationship between the front and rear supports installed on each movable platform is as follows:
When viewed from the front, it is in a vertical state, with the front struts shifted inward and the rear struts shifted outward, and side wall panels will be stretched between the front and rear struts, so the side walls of the adjacent front and rear stages will be In order to configure the panels so that they do not interfere with each other, as shown in the above-mentioned known example, the lower edges of each panel should be at a higher position than the upper edge of the two previous side wall panels, and the adjacent It is necessary to install the side wall panels in the front and rear tiers so that they are offset alternately to the inside and outside of the support, and as a result, a space is created between the lower edge of the side wall panels in each tier and the floor of the movable platform. Not only does this seriously spoil the appearance, it also gives a sense of unease to users going up and down the bleachers, and since the area below the handrail is a place where people walk, objects may fall from the handrail and the area below it. There is a risk of injury to people walking on the road.

OBJECTIVES, EMBODIMENTS AND OPERATIONS OF THE INVENTION Therefore, the present invention aims to improve the deficiencies of the above-mentioned conventional products, and one embodiment thereof will be described below with reference to the drawings.
b, 1c, 1d, and 1e are horizontally long flat movable floor stands arranged in a stepwise manner in the front-rear direction, and like the conventional ones, these have the same length in the left-right direction and width in the front-rear direction. It is supported on cart legs 2a, 2b, 2c, 2d, and 2e of successively different heights, and extends in a step-like manner as shown in Fig. 1.
As shown in FIG. 2, it can be shortened into a vertical shelf shape. These trolley legs 2a to 2e are
It is L-shaped and consists of a leg stand 4 that is long in the front and back direction and has a plurality of small wheels 3 each, and a support leg 5 that stands upward from one end of this leg stand 4. The movable floor platforms 1a to 1b are arranged in a staggered manner to support the movable platform platforms 1a to 1b, and the movable platform platforms 1a to 1b of each stage are integrated with the respective trolley legs 2a to 2e to support the movable platform platforms 1a to 1b of the previous stage. It is designed to move forward one by one from one object to the next, or to retract to the bottom of each subsequent object. In this way, a chair 7 is attached to each of the movable platforms 1a to 1e, which can be expanded and contracted in a stepwise manner, via an attachment base 6 so as to be able to rise and fall, and when each of the movable platforms 1a to 1e is extended, The spectators can be seated by being held upright by the means, and when each movable platform 1a to 1e moves backward, it falls forward and becomes a flat state, and is integrated with the movable platform under the rear movable platform. It has become possible to invade.

The sides of the telescopic and movable stepped bleachers constructed in this way become walking paths, and therefore each movable platform 1
A handrail frame 8 is provided on the side surfaces a to 1e. This handrail frame 8 is constructed in the same way for each stage, so
What is provided on the frontmost movable platform 1a will be described in detail.

This handrail frame 8 consists of front and rear supports 11, 12, and a handrail rod 13, and the front support 11, whose lower part is slightly inclined inward, is attached to the front end of the side surface of the movable platform 1a so as to be inclined forward. , the lower end of the inclined part 11' is fixed, and the lower end of the rear column 12 is fixed at the rear so that it is inclined outward from the vertical position, and between the upper ends of the front and rear columns 11, 12, It is constructed by crossing the handrail rod 13. The handrail rod 13 has a substantially L-shaped bent shape, and includes a straight section 13a extending forward from the upper end of the rear column 12 parallel to the side edge of the movable platform 1a, and a straight section 13a extending forward from the front end of the straight section 13a to the front column 11. It consists of a right-angled bent line portion 13b reaching the upper end of.

The peripheral side surface of the handrail frame 8 configured in this way, that is, the rectangular surface formed by the rear support 12 and the straight part 13a of the handrail rod 13, and the bent line part 13b of the front support 11 and the handrail rod 13. A side wall panel 14 having an L-shaped cross section and consisting of two triangular surfaces formed by is attached between the front and rear supports 11 and 12. That is, the surface 14a corresponding to the rear strut 12 of the side wall panel 14 and the straight portion 13a of the handrail rod 13 is formed in a quadrilateral shape, and the surface 14b corresponding to the front strut 11 and the bent line portion 13b of the handrail rod 13 is formed into a quadrilateral shape. This side wall panel 14 is formed in a triangular shape, and the front and rear supports 11, 12
It may be attached directly to the mount, or it may be attached via the angle-shaped mounting member 15.
The side wall panel 14 may be mounted by providing slits in the front surface of the side wall panel 14 and fitting the front edge, upper edge and rear edge of the side wall panel 14 into the slits, respectively.

An angled bottom plate 16 is then attached between the lower edge of the side wall panel 14 and the movable platform so as to close the gap therebetween.

In this way, the handrail frame 8 to which the side wall panel 14 is attached is similarly provided to each of the other movable floor platforms 1a to 1e.

In addition, although the above example illustrates the case where the bottom plate 16 is attached between the lower edge of the side wall panel 14 and the movable floor base so as to close the gap between them, FIGS. extend downward,
A case is shown in which the lower edge of the extension part 17 is fixed to the end surface on the side of the movable platform with a set screw 18 or the like, and in this case, the mounting member 15 is used with its direction reversed.

Therefore, when each movable platform 1a to 1e is moved backward and shortened, the front columns 11 overlap each other in the front and rear directions, and the rear columns 12 overlap in the lateral direction, so that the front columns 11 and the handrail rods 13 overlap. bending line part 1
3b and the side wall panel 14 arranged on the surface formed by the rear support 12 and the straight part 13a of the handrail rod 13, the side wall panel 14 arranged on the surface formed by the rear strut 12 and the straight part 13a of the handrail rod 13 can be arranged on the front side without interfering with each other in each adjacent movable platform. As shown in FIG. 2, the handrail frame 8 is gradually recessed into the lower side of the next item and shortened into a vertical shelf shape, and the handrail frame 8 is housed under each subsequent item.

In addition, when moving the lowermost movable platform 1a forward, the upper movable platforms 1b to 1e connected to it are moved forward.
are successively interlocked and moved forward, resulting in the state shown in FIG.

In this configuration, as in the conventional case, if the upper end of the forward-slanted front column does not protrude forward from the front end surface of the movable platform, that is, the lower end of the front column is fixed as shown by the imaginary line in FIG. When attaching the front support to the rear of the front end of the movable floor board, the space between the front support support and the front end of the movable floor board is left open, and any objects that fall in this space are prevented from falling. It will be received at the rear of the lower movable platform. Therefore, if, for example, a Western umbrella falls from the space between the upper and lower movable platforms and is caught at the rear of the lower movable platform, and then straddles the upper and lower movable platforms and intervenes, this situation occurs. When the movable platform is moved in and out of the movable platform, there is a risk that falling objects may interfere with the movement of the movable platform; however, in this application, the lower end of the front support 11 is Since it is attached to the front end of the side, it is possible to close the gap between the side of the movable bed and the side wall panel over the front and rear width of the movable bed, allowing safe movement of the movable bed. can.

In the above embodiment, the handrail frame 8 makes the apparent heights of the front and rear supports 11 and 12 equal and horizontally supports the handrail rod 13, but the rear support 12 is made higher and the handrail rod 13 It may also be hung horizontally with the front tilted downward.

Effects of the Invention As described above, according to the present invention, since no space is created between the side wall panel and the side end surface of the movable bed, the appearance in the extended state is very good. In addition, it is possible to provide a handrail device for a viewing seat that is highly safe, since there is no fear that falling objects falling from the side of the movable platform will hinder the movement of the movable platform.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an example of the bleachers according to the present invention in the extended state, Fig. 2 is a partially cutaway side view of the same in the shortened state, and Figs. 3 and 6 are partially omitted. Figures 4 and 7 are partially enlarged cross-sectional views showing the relationship between the rear support and the movable platform, and Figure 5 shows the attachment of the handrail and frame side wall panel to the movable platform. FIG. 2 is a partially exploded perspective view showing the structure. In the figure, 1a to 1e are movable floor tables, 8 is a handrail frame, 1
1 is the front post, 12 is the rear post, 13 is the handrail lever, 14
1 is a side wall panel, 16 is a bottom plate, and 17 is an extension.

Claims (1)

[Scope of Claims] 1. Attach the support column to the front end of the side surface of the movable platform in a forwardly inclined state, and attach the rear column to the rear side surface of the movable platform in an outwardly inclined state, with their lower ends respectively attached. In addition, between the upper ends of the front and rear struts, a groove extends forward from the upper end of the rear strut parallel to the side edge of the movable platform, and is bent inward from its front end, with its tip end of the front strut. A rectangular surface horizontally supporting a handrail rod connected to the upper end, and further formed between the front and rear struts by the rear strut and a straight portion of the handrail rod extending forward from the upper end thereof; Attaching a side wall panel having an L-shaped cross section consisting of two triangular surfaces formed by the front support and the bent line at the front end of the handrail rod, and attaching the side wall panel and the movable floor base. A handrail device for a telescoping and movable staircase-like bleachers, characterized in that a bottom plate is attached between them so as to close the gap between them and the side end surfaces of the seats. 2. A handrail device for a telescoping and movable stepped grandstand as claimed in claim 1, wherein the lower part of the front support is inclined inward. 3. A handrail device for a telescoping and movable stepped grandstand as set forth in claim 1 or 2, wherein the upper end positions of the front and rear pillars are made equal and a handrail rod is placed horizontally between them. 4. A handrail in the telescoping and movable staircase-like bleachers as set forth in claim 1 or 2, wherein the upper end of the rear pillar is made higher than the upper end of the front pillar, and a handrail rod is placed horizontally between them. Device. 5 Attach the front strut to the front end of the side surface of the movable platform in a forwardly inclined state, and attach the rear strut to the rear side surface of the movable platform in an outwardly inclined state, with their lower ends attached, and Between the upper ends, it extends forward from the upper end of the rear strut parallel to the side edge of the movable platform, is bent inward from its front end, and its tip is connected to the upper end of the front strut. The handrail rod is suspended horizontally, and further between the front and rear supports, a rectangular surface formed by the rear support and a straight part of the handrail rod extending forward from the upper end thereof, and the front support and the handrail rod. A side wall panel having an L-shaped cross section consisting of two triangular surfaces formed by a bent line portion at the front end of A handrail device for an extendable and retractable stair-shaped bleachers, characterized in that the side wall panel is extended downward so as to close the gap between the sides, and the extended portion is fixed to the side end surface of the movable platform. . 6. A handrail device for an extendable and movable stepped grandstand as claimed in claim 5, wherein the lower part of the front support is inclined inward. 7. A handrail device for a telescoping and movable stepped grandstand as set forth in claim 5 or FIG. 6, wherein the upper end positions of the front and rear columns are made equal and a handrail rod is placed horizontally between them. 8. A handrail in the telescoping and movable staircase-like bleachers as set forth in claim 5 or 6, wherein the upper end of the rear pillar is made higher than the upper end of the front pillar, and a handrail rod is placed horizontally between them. Device.