JPH02186064A - Scaffolding for installing dam waiter - Google Patents

Abstract

PURPOSE:To obtain an effective installation scaffolding in which the depth length is not restricted, by supporting an inclined member which is connected in turnable ways onto a supporting metal fitting fixed on a getting-on field floor, onto the rear wall of an elevator passage. CONSTITUTION:A supporting metal fitting 20 onto which the getting-on field side edge part of an inclined member 19 is connected is fixed with a getting-on field 3, and the inclined member 19 is bulged out an elevator passage 1. Then, the top edge part of the inclined member 19 is supported onto the rear wall of the elevator passage 1 so that the top edge side of the inclined member 19 is set high. A triangle is formed from the inclined member 19 and the horizontal plane for the getting-on field 3 and the rear wall 4 of the elevator passage positioned between the inclined member 19 and the getting-on field 3, and the strength for scaffolding is secured. Therefore, the need of the vertical member and the horizontal member is obviated, and the effective installation scaffolding can be obtained without restricting the height of the getting-on field and the depth length of the elevator passage.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a scaffold for installing a dumb wake that is provided so as to protrude from the opening of the upper landing of the dumb wake shaft into the hoistway.

[Conventional technology]

Figures 3 and 4 are, for example, published in Japanese Patent Application Laid-open No. 1986-1986.
FIG. 2 is a vertical side view and a cross-sectional plan view of the upper part of a hoistway showing a conventional elevator installation scaffold shown in the above publication. In FIGS. 3 and 4, 1 is the elevator hoistway, 2 is the top of the hoistway 1, 3 is the landing floor of the upper landing of the elevator, and 4 is the top of the hoistway 1.
is the rear wall of the hoistway facing the upper landing, 5 is the opening of the upper landing, and 6 is a triangular scaffold installed extending from the landing floor 3 into the hoistway 1. This triangular scaffold 6 is constructed as follows. It is configured. 7 is a support plate whose length in the left and right direction is approximately equal to the width in the left and right direction of the opening 5;
The support plate 7 is attached to the landing floor 3 by a plurality of anchor bolts 8.
Fixed on top. 9.9a is a fixture fixed to the left and right ends of the support plate 7; 10, 10a are fixtures 9, 9 fixed to the bin 11
These are vertical members connected to each of the parts a so as to be rotatable in the vertical direction. Then, the landing side ends of the left and right vertical members 10.10a, the horizontal members 12, 12a, and the inclined members 13, 13a are connected to the fixtures 9, 9a and the vertical members 10, 10a by the bins 11 and pins 15, 15a, The distal ends of the horizontal members 12, 12a and the inclined members 13.13a are connected by pins 14, 14a. Further, both ends of the step 16 are fixed to the vertical members 10, 10a, both ends of a scaffolding board 17 are supported by the horizontal members 12, 12a, and the scaffolding board 17 is fixed to the horizontal members 12, 12a with bolts 18 or the like. There is. To install the triangular scaffold 6, assemble the triangular scaffold 6 on the landing floor 3 as shown by the two-dot chain line in FIG.
Triangular scaffolding 6 is raised and lowered around pin 11 as shown by arrow A #! 11 so as to extend into the inclined member 1.
Scaffolding is installed in the hoistway 4 by making the tip of 3.13a contact and support the rear wall 4 of the hoistway 1.

[Problem to be solved by the invention]

Since the conventional elevator installation scaffold is constructed as described above, it is used only when the length dimension 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 was a problem in that the depth dimension B of the hoistway 1 was also limited. Further, the above-mentioned installation scaffold is a scaffold for elm, and in a dumbwaiter where the opening of the landing and the hoistway are small, there is also the problem that the number of members constituting the triangular scaffold is more than necessary. This invention was made to solve the above-mentioned problems, and can be installed in a hoistway regardless of the height of the opening of the landing or the depth of the hoistway, and there are fewer members that make up the scaffolding. The purpose is to obtain scaffolding for installing a dumbwaiter.

[Means to solve the problem]

The scaffold for installing a dumb wake according to the present invention has a diagonal member connected to a supporting metal fitting fixed to a landing floor so as to be rotatable in the vertical direction, and extends from an opening of an upper landing of a dumb wake hoistway into the hoistway, and A member is supported on the rear wall of the hoistway facing the upper landing, and a scaffolding floor is supported and fixed to the diagonal member.

[Effect]

The scaffold for installing a dumbwaiter in this invention fixes a support fitting to which the landing side end of the diagonal member is connected to the landing floor,
Extend the diagonal member into the hoistway and tilt the diagonal member so that the tip side is higher? By supporting the tip of the member on the rear wall of the hoistway, a triangle is formed between the diagonal member, a plane horizontal to the landing floor, and the rear wall of the hoistway located between them, which can be used as a scaffold. Vertical members that can ensure strength and are used in conventional elevator installation scaffolding.
There is no need for a horizontal member, and there are no restrictions on the height of the landing or the depth of the hoistway.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view of the upper part of the hoistway according to an embodiment of the present invention. In FIG. 1, the same reference numerals as in FIGS. 3 and 4 indicate the same or equivalent parts, 19 is a diagonal member, 20 is a support metal fitting, and the horizontal part of the support metal 20 is anchored to the landing floor 3). 8 and a nut, and the base end portion of the diagonal member 19, that is, the landing side end portion, is connected to the vertical portion by a pin 11 so as to be rotatable in the vertical direction. Reference numeral 21 denotes a metal fitting, and one end of the metal fitting 21 is connected by a pin 22 to the end portion of the diagonal member 19 opposite to the landing area, that is, the tip portion thereof, so as to be rotatable in the vertical direction. Reference numeral 23 is a line provided on the outer surface of the end of the diagonal member 19 on the landing side, indicating the limit angle of use of the diagonal member 19. Reference numeral 24 designates a side frame composed of a diagonal member 19, a support fitting 20, a receiving metal fitting 21, a pin 11, and a pin 22. Next, a procedure for assembling a scaffold for installing a dumbwaiter according to this embodiment will be explained. Drive the anchor bolt 8 into the landing floor 3 so that the diagonal member 19 is arranged at an angle within the usage limit shown by the line 23 with the tip side highly inclined, take the side frame 24 to the hoistway 1, and attach the support fitting 20 to the anchor point AI. Fixed at -8. A support is provided on a portion of the rear wall 4 of the hoistway above the landing floor 3 to vertically support one end of the metal fitting 21 and the other end perpendicular to the other end. Perform the above work on the left and right side frames 24, and
Scaffolding board 1 is placed on diagonal members 19 arranged parallel to each other.
7 is placed from the landing side, and the scaffold board 17 is fixed to the diagonal member 19 with bolts 18 or the like to form a scaffold. In the embodiment described above, when the depth dimension of the hoistway 1 is small, the support fitting 20 for attaching the diagonal member 19 to the landing floor 3 can be located farther away from the opening 5 serving as the entrance/exit of the landing. Further, another embodiment shown in FIG. 2 includes diagonal members 19a, 19bQ divided into front and rear parts, and these diagonal members 19a,
1.9b, and apply the joint fitting 25 across the opposite ends of the joint 1.9b, and tighten the bolts 26, which are pushed through the front and rear long holes 27 provided in the joint 25, to the diagonal members 19a and 19b. Attach 19b to the fittings 2
The supporting metal fittings 20 are fixed to the anchor bolts 8 which are connected through the anchor bolts 8, which are connected via the diagonal members 19a and 19b, and which are extendable and retractable over their entire length. The total length can be adjusted according to the depth dimension of the hoistway 1 by using the metal armor 25. Note that the configuration of the embodiment shown in FIG. 2 other than the above is as follows.
It is similar to that shown in FIG. Effects of the Invention As described above, according to the present invention, the support fitting to which the landing 01σ end of the diagonal member is connected is fixed to the landing floor, the diagonal member is extended onto the hoistway, and the tip side of the diagonal member is fixed to the landing floor. By tilting the diagonal member higher and supporting the tip of the diagonal member on the rear wall of the hoistway, a triangle is formed between the diagonal member, a plane horizontal to the landing floor, and the rear wall of the hoistway located between them. This ensures the strength of the scaffolding. This eliminates the need for vertical members, horizontal members, and other equipment used in conventional elevator installation scaffolding, reducing the number of components needed to construct the scaffold, and limiting the height of the landing opening and the depth of the hoistway. This has the effect of providing an especially effective installation scaffold for dumbwaiters with small hoistway dimensions.

[Brief explanation of the drawing]

1 and 2 are vertical sectional side views of the upper part of the hoistway showing a scaffold for installing a dumbwaiter according to an embodiment of the present invention;
The figure is a diagram equivalent to Figure 1 showing a conventional elevator installation scaffold.
FIG. 4 is a cross-sectional plan view of the hoistway. 1 Hoistway, 3 Landing floor, 4 Rear wall of hoistway, 5 Opening of upper landing, 17 Scaffolding floor, 19, 19a, 19
b Diagonal member, 20 support metal, 21 support are metal fittings. In addition, the same reference numerals in the figures (same or equivalent parts are indicated. Figure 1)

Claims (1)

[Claims] a diagonal member extending from the opening of the upper landing of the dumbwaiter hoistway into the hoistway and supported by the rear wall of the hoistway facing the upper landing; and a landing side end of the diagonal member fixed to the landing floor of the upper landing. 1. A scaffold for installing a dam waiter, comprising: a support fitting connected to the vertically rotatable portion; and a scaffold floor supported and fixed to the diagonal member.