JPH06156922A - Scaffold for installation of elevator - Google Patents

Abstract

PURPOSE:To provide a scaffold for installation of an elevator which mitigates shearing load applied on shaft materials and can deal with variation of the depth measure of an elevator passage by providing seat plates on the extreme end parts of inclined members on the wall side of an elevator passage against the connecting parts of the inclined members and the horizontal members. CONSTITUTION:The extreme end parts on the wall side of an elevator passage of inclined members 4 provided with connecting parts of shaft-like members 10a are pressed against an elevator passage wall 1a through shaft-like members 10c and then seat plates 6. Because the seat plates 6 on the extreme end parts of the inclined members 4 is pressed against the elevator passage wall la so as to take partial charge of a load, shearing force applied on a shaft material 10b is mitigated, compared with the case when the seat plates are fitted on the extreme end parts on the elevator passage side of horizontal members 3 and not pressed against the wall 1a. Further the inclined members 4 are adjustable in length, and hence even if the shaft materials 10b are broken, the inclined members 4 are between an elevator passage landing side wall 1c and standing pillar members 5 and L-like slip-out preventing members 7 so as to prevent slipping out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator installation scaffold provided in a hoistway landing.

[0002]

2. Description of the Related Art FIG. 3 is a partially cutaway side view showing a conventional scaffold for elevator installation, which is disclosed in Japanese Utility Model Laid-Open No. Sho 63-180679, and which has a horizontal member having a fixed length in the depth dimension of a hoistway. . FIG. 4 is a partially broken side view showing a conventional scaffold for elevator installation, which is disclosed in Japanese Utility Model Laid-Open No. 1-152971 and has a horizontal member whose length can be adjusted when the depth dimension of a hoistway changes. It is a figure. In FIG. 4, 1 is a hoistway and 2 is a landing floor. The plurality of upright pillar members 5 are installed in parallel on the landing floor 2 facing the hoistway 1, and the lower end is attached to the landing floor 2 by the metal fitting 7 fixed by the anchor 11, and the upper end is attached to the wall surface 1b by the bolt 13. It touches and prevents falling. In addition, the intermediate portion of each of the standing pillar members 5 arranged in parallel is fixed by a member 8 connecting the standing pillar members 5. The horizontal member 3 of the scaffold extended to the hoistway 1 has one end portion for each standing pillar member 5
It is in contact with the facing hoistway wall 1a through the seat plate 6 fixed by the tight fastener 12 and attached to the other end. One end of the inclined member 4 is connected to the horizontal member 3 by the shaft member 10a, and the other end is connected to the standing column member 5 by the shaft member 10b. In the figure, 9 is a scaffolding board that is tightly erected on the horizontal member 3, 14 is a landing material, and 15 is a landing threshold.

In the conventional scaffold for installation shown in FIGS. 3 and 4, a horizontal member 3 projecting to the hoistway wall side 1a rather than the shaft member 10a projects long so that a scaffold plate 9 can be installed. For this reason, most of the load P of the operator, the tool, and the equipment that rides on that portion is applied to the shaft members 10a and 10b, and the load P is less transmitted to the hoistway wall 1a by the seat plate 6.

[0004]

Therefore, in such a conventional scaffold, when a load of an operator or the like is applied to the scaffold 9 on the side of the hoistway wall 1a beyond the shaft member 10a, the structure of the scaffold causes A shear load larger than the above-mentioned load P obtained by dividing the moment load by the distance between the binding material 12 or the shaft material 10b and the shaft material 10a is applied to the shaft material 10a. As a result, there is a problem that scaffolding work becomes extremely dangerous. Similarly, the tilting member 4
A large shear load is applied to the shaft member 10b connecting the column member 5 and the vertical pillar member 5, and when the shaft member 10b is broken, there is a problem that there is no guarantee of safety and the condition is extremely dangerous. .

The present invention has been made in order to solve the above-mentioned problems. The shear load applied to the shaft members 10a and 10b is relaxed to enhance the safety and the shaft member 10b.
Even if it is damaged, it can prevent an accident, and
It is an object of the present invention to provide an elevator installation scaffold that can adapt to changes in the depth of a hoistway.

[0006]

An elevator installation scaffold according to the present invention comprises a standing pillar member standing on a landing floor, and a horizontal member attached to the standing pillar member and projecting toward a hoistway wall facing the landing opening. A tilting member whose both ends are connected to the hoistway wall side end of the horizontal member and the floor side end of the upright column member by an axial member, and a seat plate interposed between the horizontal member and the hoistway wall. In the elevator scaffolding provided, a seat plate is provided at the tip of the inclined member on the hoistway wall side of the connecting portion between the inclined member and the horizontal member.

In the elevator installation scaffold of the present invention, the retaining member for the inclined member may be provided on at least one of the landing floor, the landing floor of the inclined member, and the landing floor of the standing pillar member.

Further, a member in which at least one of the tilt member and the horizontal member is adjustable in length can be used.

[0009]

In the elevator scaffolding according to the present invention, since the seat plate is provided at the tip of the inclined member on the hoistway wall side, the shaft connecting the inclined member to the hoistway wall side end of the horizontal member. Since the seat member at the end of the inclined member on the side of the hoistway wall transmits the load to the hoistway wall as well, the shearing load less than the load by the operator or the like is suppressed at the maximum. The shear load applied to the shaft-shaped member connecting the floor-side end portion and the inclined member is further reduced.

Further, even if the shaft-like member connecting the floor side end of the upright pillar member and the tilt member is damaged, the retaining member attached to the floor side part of the elevator installation scaffolding supports the tilt member.

Further, if at least one of the slanting member and the horizontal member whose length is adjustable is used, the depth dimension of the hoistway can be changed and the floor side end of the slanting member serves as a retaining member. Since they can almost come into contact with each other, when the shaft-shaped member is damaged, the retaining member attached to the floor of the landing reliably supports the inclined member to improve the safety of scaffolding work.

[0012]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 is an explanatory view showing a usage state of an elevator installation scaffold according to an embodiment of the present invention, and FIG.
2 is a sectional view taken along line 2-2 of FIG. Note that FIG.
2 that are the same as those of the conventional one shown in FIG. The tilt member 4 has a structure whose length is adjustable. The tip end of the inclined member 4 provided with the connecting portion by the shaft-shaped member 10a on the hoistway wall side is pressed against the hoistway wall 1a via the shaft-shaped member 10c and the seat plate 6 in this order. The upright pillar member 5 is fixed to the landing floor 2 by an anchor 11 and supported by an L-shaped retaining member 7. The L-shaped retaining member 7 is in contact with the inclined member 4. In the figure, an arrow P indicates the position and direction of a portion to which a load is applied, such as an operator, a tool, and equipment, and 1c indicates an opening side wall of a hoistway landing.

Next, the operation of the elevator installation scaffold configured as described above will be described. Hoistway wall 1a of scaffolding plate 9
If workers, tools, equipment, etc. are located on the tip side of
Since the load P is located between the shaft members 10a and 10c, the shaft member 1
Only a load less than the load P is applied to 0a. Further, since the seat plate 6 at the tip of the inclined member 4 is pressed against the hoistway side 1a to share the load, the shearing force applied to the shaft member 10b causes the seat plate 6 to be attached to the hoistway side tip of the horizontal member 3. , Is relaxed as compared with the case where the hoistway side 1a is not pressed. Further, since the inclination member 4 has an adjustable length, the inclination member 4 can easily come into contact with the substantially L-shaped retaining member 7, so that even if the shaft member 10b is damaged, the inclination member 4 becomes the hoistway landing side wall 1c. Standing pillar member 5,
It is between the L-shaped retaining members 7 and can be prevented from falling off.

The L-shaped retaining member 7 is attached to the landing floor 2.
Although the example attached to the above has been described, the L-shaped retaining member 7
The same effect can be obtained by attaching the to the vertical pillar member 5. Further, the floor side end of the inclined member 4 is brought into contact with the standing pillar member 5 so that the leading end side is bifurcated so as to sandwich the standing pillar member 5, and the bifurcated portion and the standing pillar member 5 are connected to the standing pillar member 5 by a shaft member 10b. The inclined member 4 may have a function of a retaining member.

Example 2. In the above embodiment, only the slant member 4 is adjustable in length, but the horizontal member 3 is also adjustable in length so that it is possible to cope with changes in the depth dimension of the hoistway, and each hoistway dimension can be adjusted. The standardization of the member may be achieved by eliminating the need for the member.

[0016]

As described above, according to the present invention,
Since the seat plate is provided at the tip of the inclined member on the hoistway wall side, the shear load applied to both shaft-like members connecting the inclined member to the horizontal member and the vertical column member is relaxed to enhance the safety of scaffolding work, Even if the shaft-like member that connects the inclined member to the upright pillar member is damaged, the occurrence of an accident can be prevented by providing the retaining member that prevents the inclined member from coming off. Furthermore, the length of at least one of the inclined member and the horizontal member can be adjusted to provide a scaffold for elevator installation that can cope with dimensional changes in the hoistway.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a usage state of an elevator installation scaffold according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a partially cutaway side view showing a usage state of a conventional elevator installation scaffold.

FIG. 4 is a partially cutaway side view showing another usage state of the conventional elevator installation scaffold.

[Explanation of symbols]

 3 Horizontal member 4 Inclined member 5 Standing pillar member 6 Seat plate 7 Locking member 9 Scaffold plate 10 Shaft member 13 Bolt

Claims (3)

[Claims] 1. A standing pillar member standing on a landing floor, a horizontal member attached to the standing pillar member and projecting toward a hoistway wall facing the landing opening, and a hoistway wall having both ends at the horizontal member. An elevator scaffolding comprising an inclined member connected to a side end portion and a floor side end portion of the upright pillar member by an axial member, and a seat plate interposed between the horizontal member and the hoistway wall. The scaffolding for elevator installation according to claim 1, wherein the seat plate is provided at a tip end portion of the inclined member on the hoistway wall side with respect to a connecting portion between the inclined member and the horizontal member. 2. A landing floor and a vicinity of the landing floor of the inclined member,
At least one of the landing floor vicinity of the standing pillar member,
The scaffolding for elevator installation according to claim 1, further comprising a retaining member for the inclined member. 3. The scaffolding for elevator installation according to claim 1, wherein the length of at least one of the inclined member and the horizontal member is adjustable.