JPH07107327B2 - Scaffolding for dam waiter installation - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to a dam waiter installation scaffold provided to project from the opening of an upper landing of a dam waiter hoistway into the hoistway.

[Prior art]

FIG. 3 and FIG. 4 are a longitudinal side view and a transverse plan view of the upper part of the hoistway showing a conventional scaffolding for installing an elevator disclosed in JP-A-60-19862, for example. Figures 3 and 4
In the figure, 1 is an elevator hoistway, 2 is an uppermost part of the hoistway 1, 3 is a floor of an elevator upper landing, 4 is a rear wall of the hoistway facing the upper landing, 5 is an opening of the upper landing, Reference numeral 6 denotes a triangular scaffold installed so as to extend from the landing floor 3 to the hoistway 1, and the triangular scaffold 6 is configured as follows. Reference numeral 7 denotes a support plate having a left-right length formed to have a size substantially equal to the width of the opening 5 in the left-right direction. The support plate 7 is fixed on the landing floor 3 by a plurality of anchor bolts 8. 9,9a are fixing metal fittings fixed to the left and right ends of the support plate 7, and 10,10a are fixing metal fittings 9 and 9a by pins 11.
The vertical members are vertically rotatably connected to each other. Then, the left and right vertical members 10, 10a and the horizontal members 12, 12a
And the landing side end of the inclined members 13 and 13a is the pin 11 and the pin.
15, 15a are connected to the fixtures 9, 9a and the vertical members 10, 10a, and the tip ends of the horizontal members 12, 12a and the inclined members 13, 13a are connected by pins 14, 14a. Further vertical member 1
Both ends of step 16 are fixed to 0, 10a, and horizontal members 12,
Both ends of the scaffolding plate 17 are supported by the 12a, and the scaffolding plate 17 has bolts 1
It is fixed to the horizontal members 12 and 12a by 8, etc. To install the triangular scaffold 6, the triangular scaffold 6 is assembled on the landing floor 3 as shown by the chain double-dashed line in FIG.
The triangular scaffold 6 is rotated about the pin 11 as an axis so as to project into the hoistway 1 as shown by an arrow A, and the inclined members 13, 13a are rotated.
A scaffolding is installed in the hoistway 1 by abutting and supporting the tip end portion of the hose against the rear wall 4 of the hoistway 1.

[Problems to be Solved by the Invention]

Since the conventional scaffold for elevator installation is configured as described above, it is used only when the length dimension L of the inclined members 13, 13a of the triangular scaffold 6 is shorter than the height dimension H of the opening 5 of the upper landing. However, there is a problem in that the depth dimension B of the hoistway 1 is also limited. In addition, the above-mentioned installation scaffold is an elevator scaffold, and there is a problem that the number of members forming the triangular scaffold is unnecessarily large in a dam waiter having a small landing opening and hoistway. The present invention has been made to solve the above problems, and can be installed in the hoistway regardless of the height of the opening of the hall and the depth of the hoistway, and there are few members that make up the scaffolding. The purpose is to obtain a scaffold for dam waiter installation.

[Means for Solving the Problems]

The dam waiter installation scaffold according to the present invention comprises an oblique member rotatably connected in a vertical direction to a support fitting fixed to a landing floor, and an oblique member overhanging the hoistway from an opening of an upper landing of the dam waiter hoistway. The member is supported on the rear wall of the hoistway facing the upper landing, and the scaffolding floor is supported and fixed to the diagonal member.

[Action]

The dam waiter installation scaffolding according to the present invention has a support metal fitting, to which a landing side end of an oblique member is connected, fixed to a landing floor,
By projecting the slant member to the hoistway, inclining the slant member so that the tip side becomes higher and supporting the tip end of the slant member on the rear wall of the hoistway, the slant member and a plane horizontal to the landing floor, A triangle is formed with the hoistway rear wall located between the two, ensuring strength as a scaffold, and eliminating the vertical and horizontal members used in conventional scaffolds for elevator installation. There is no restriction on the depth direction of the hoistway.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional view of an upper portion of a hoistway according to an embodiment of the present invention. In FIG. 1, the same reference numerals as those in FIGS. 3 and 4 indicate the same or corresponding parts, 19 is an oblique member, 20 is a support metal fitting, and the horizontal part of the support metal fitting 20 is the anchor bolt 8 on the landing floor 3.
And a nut, and the base end of the diagonal member 19, that is, the landing end is connected to the vertical portion by the pin 11 so as to be vertically rotatable. Reference numeral 21 denotes a receiving metal fitting, and one end portion of the receiving metal fitting 21 is connected by a pin 22 to an end portion of the diagonal member 19 on the side opposite to the landing place, that is, a front end portion so as to be vertically rotatable. Reference numeral 23 is a line indicating the use limit angle of the diagonal member 19 provided on the outer surface of the landing side end of the diagonal member 19. Reference numeral 24 is a side frame constituted by the diagonal member 19, the support fitting 20, the receiving fitting 21, the pin 11 and the pin 22. Next, a procedure for assembling the scaffold for dam dam installation according to this embodiment will be described. The anchor bolt 8 is struck on the landing floor 3 so that the tip end side is arranged at a high inclination at an angle within the usage limit indicated by the line 23, the side frame 24 is taken out to the hoistway 1, and the support metal fitting 20 is attached to the anchor bolt. Fix at 8. The upper end of the rear wall 4 of the hoistway above the landing floor 3 is made to vertically support the other end of the receiving fitting 21 which is orthogonal to the one end. The above work is performed on the left and right side frames 24, the scaffolding floor 17 is placed from the landing side on the diagonal members 19 arranged in parallel with each other on the side frames 24, and the scaffolding plate 17 is fixed to the diagonal member 19 by bolts 18 or the like. , Configure the scaffold. Further, in the above-described embodiment, when the depth dimension of the hoistway 1 is small, a support fitting for attaching the diagonal member 19 to the landing floor 3 is provided.
This can be dealt with by locating 20 further than the opening 5 that serves as the entrance and exit of the hall. In addition, another embodiment shown in FIG. 2 is provided with diagonal members 19a and 19b divided into front and rear, and a joint metal fitting 25 is applied so as to straddle between the opposite ends of these diagonal members 19a and 19b, and a joint metal fitting 25. Bolts 26 inserted through the front and rear slots 27
To the diagonal members 19a, 19b, and the diagonal members 19a, 19b are connected via the joint metal fittings 25 so that their entire length can be expanded and contracted, and the anchors are provided at a position separated from the landing opening 5 by an appropriate depth dimension. The support fitting 20 is fixed to the bolt 8, and the diagonal members 19a and 19b and the joint fitting 25 allow the total length to be adjusted according to the depth dimension of the hoistway 1.
The structure of the embodiment shown in FIG. 2 other than that described above is the same as that shown in FIG.

【The invention's effect】

As described above, according to the present invention, the support metal fitting to which the landing end of the diagonal member is connected is fixed to the landing floor, the diagonal member is projected to the hoistway, and the diagonal member is inclined so that the tip side becomes higher. By supporting the tip of the diagonal member on the rear wall of the hoistway, a triangle is formed by the diagonal member, the horizontal surface of the landing floor, and the hoistway rear wall located between them, and the triangle is formed. The strength can be secured. Therefore, equipment such as vertical members and horizontal members used in conventional scaffolds for elevator installation is not required, the number of members that make up the scaffold is small, and the height dimensions of landing openings and hoistway depth dimensions are limited. It is possible to obtain a scaffold for installation that is particularly effective for dam waiters having a small hoistway size without being subjected to the impact.

[Brief description of drawings]

1 and 2 are longitudinal side views of the upper part of a hoistway showing a scaffold for dam dam installation according to an embodiment of the present invention, FIG.
The figure is equivalent to Figure 1, showing a conventional scaffold for elevator installation,
FIG. 4 is a cross-sectional plan view of the hoistway. 1 ... hoistway, 3 ... hall floor, 4 ... hoistway rear wall, 5
...... Upper landing opening, 17 ...... Scaffolding floor, 19,19a, 19b ...... Slanting member, 20 ...... Support metal fitting, 21 ...... Retaining metal fitting. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. An oblique member that extends from the opening of the upper landing of the dam waiter hoistway to the hoistway and is supported by the rear wall of the hoistway facing the upper landing, and the diagonal member fixed to the landing floor of the upper landing. A scaffold for dam waiter installation, comprising: a support metal member having a landing side end of the member rotatably connected in a vertical direction; and a scaffolding floor supported and fixed to the diagonal member.