JPH07137965A - Door holder for dumb waiter entrance door - Google Patents

Abstract

PURPOSE:To provide a door holder which can hold a condition in which an entrance of a dumb waiter is held, from the outside thereof. CONSTITUTION:A receiving plate 37 on which an upper door of an entrance door is set, is provided at the top of a support column 33 which is fitted on a base column so as to be vertically movable. Meanwhile, a hooking pawl from which a lower door of the entrance door is suspended is provided to the base column. After a door holder 30 is planted on the floor surface 43 of a dumb waiter outside of the entrance door, the upper and lower doors 17, 18 are opened. Further, the lower door 18 is hooked to the hooking pawl. In this fixed condition, the support column 33 is moved upward so that the upper door 17 set on the receiving plate 37 is moved upward. After the degree of opening increases so as to allow a worker to pass therethrough, it is locked by a lock bar 35b so that the entrance door is held to be opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door holder for a door of a dam waiter, and more particularly to a door holder for keeping a door of a door of a dam waiter open.

[0002]

2. Description of the Related Art A dam weighter is an industrial elevator for carrying small cargo and is also called a lift. The dam waiter does not carry people because it is small, but its structure is similar to that of a normal elevator, and the basket moves up and down the hoistway to open cargo doors and doors for loading and unloading.
Here, when these doors are automatic doors like ordinary elevators, the automatic door of the entrance and exit is opened and closed in conjunction with the automatic door of the basket, but the door of a normal dam waiter is a manual type, It is usually suspended in the hoistway.
In addition, an automatic door of a dam waiter is different from a normal elevator in that it is generally a single-door open upper door or a double-door open / close upper door.

FIG. 7 is a front view of a dam waiter having a door opening / closing door with two doors open / closed. Particularly, FIG. 7A shows a state in which the door opening / closing door is opened.
(B) shows a closed state.

As shown in FIG. 7, the dam waiter carries a cargo on a carriage 11 to carry it. The transport basket 11 moves up and down the hoistway 13. Then, when the transport basket 11 is located at the access 15 of the dam waiter, the access door is opened. Since the dam waiter according to this conventional example has two doors opened and closed vertically, the access doors are the upper door 17 and the lower door 18.
Consists of a transport basket 11 for loading and unloading a dam waiter 15
When located at, the doors 17 (upper door) and 18
(Shimodo) is opened. Moreover, since this doorway is a manual door, as shown in FIG.
7 is provided with a handle 19. In such an entrance / exit door, the upper door 17 and the lower door 18 are interlocked with each other. Therefore, when the handle 19 is raised and the upper door 17 is pushed up, the lower door 18 is lowered accordingly.

By the way, in the dam waiter, it is necessary to replace and inspect the parts, as in a normal elevator. When performing inspection or the like, the access doors 17 and 18 are opened, and then the opened state is maintained.

Heretofore, such holding is conventionally carried out as shown in FIG. 8 by using a locking key claw 20 and a sandwiching body 21.
Etc. The key claw 20 is connected to an angle required for inspection work, and its height is adjusted as necessary. The sandwiching body 21 is necessary because it is necessary to move the upper door 17 up and down while fixing the lower door 18. That is, when the lower door 18 is located at the lowermost portion, the upper door 17 cannot move further upward, so it is necessary to fix the lower door 18 so as not to move to the lowermost portion. If the lower door 18 is not located at the bottom, the upper door 17
The rope hanging from the slack makes the upper door 17
Can be moved above the corresponding position when the lower door 18 is located at the bottom.

[0007]

As described above, the prior art is as follows.
At the time of inspection and repair of the dam waiter, the entrance and exit doors were fixed from the hoistway side, but the dam waiter is a small elevator, and the workability is poor because the hoistway is narrow,
There was a problem that it was difficult to install hooks and the like.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a door holder that can easily hold the open state of the automatic door of the dam waiter from the outside.

[0009]

In order to solve the above problems, in the door retainer for the door of the dam waiter according to the present invention, the two doors provided on the hoistway side of the dam waiter are opened and closed vertically. A door retainer for holding an open / closed state of an entrance / exit door, a base pillar standing upright on the floor surface of the dam waiter on the entrance / exit opening side, a pillar that fits to this base pillar, and moves vertically, and this pillar. A support plate that is provided and overhangs on the side of the hoistway to support and mounts the upper door of the automatic door for loading and unloading, and a suspension that is provided on the base pillar and that protrudes to the side of the hoistway and hangs and supports the lower door of the automatic door for loading and unloading It is characterized by including a lower claw and a lock for restricting the movement of the column.

Further, in the door holder described above, the base pillar is provided with a lock for locking the base pillar to a wall on the inlet / outlet side of the dam waiter so as to prevent the base pillar from moving toward the hoistway. .

[0011]

In the door retainer for the door of the dam waiter of the present invention having the above-described structure, the upper door is supported by the receiving plate. At this time, since the lower door is fixed by the hanging claws and its movement is restricted, the lower door does not move to the lowermost portion. Therefore, the movable table can be moved with the lower door stopped, and the position of the upper door can be easily set. After setting the position of the upper door, if the position is fixed by a lock, the open / closed state of the access door will be maintained.

That is, in the door retainer for the doorway of the dam waiter according to the present invention, the lower door can be fixed so as not to move to the lowermost part when the doorway is opened to some extent, and the upper door can be pushed up in this state. For,
There is no restriction on the movement of the upper door depending on the position of the lower door to the bottom, and it is possible to open the door to the full extent of the door.

In the door holder for the door of the dam waiter of the present invention, the weight of the door holder acts to move the entire door holder toward the hoistway due to the weight of the door, but the base is placed on the wall of the door of the dam waiter. By providing the locking for locking, it is possible to prevent the door holder from moving toward the hoistway.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 is a perspective view showing the construction of a door holder for a door of a dam waiter according to a first embodiment of the present invention. Further, FIG. 2 is a vertical cross-sectional view for explaining the operation of the door holder according to the first embodiment.

As shown in these figures, the door holder 30 according to the first embodiment has a base 31 and a base 31.
And a column 33 that is fitted into the. In the embodiment, the base column 31 is a hollow cylinder, and is set up on the floor by the pedestal 34. On the other hand, the support column 33 is formed of a hollow columnar body so as to match the shape of the hollow portion of the base column 31. The vertical movement of the column 33 is restricted by the lock 35. In the first embodiment, the lock 35 includes the inverted L-shaped hole 3 provided in the base post 31.
5a and a lock bar 35b. Therefore, in the lock 35 according to the first embodiment, the lock bar 3
Locking is performed by lifting and locking 5b in the inverted L-shaped holding hole 35a, thereby restricting the movement of the support column 33. That is, FIG. 4 is an enlarged view of the portion A in FIG.
As shown in (a), in the first embodiment, the lock bar 35b is attached to the column 33, and the lock is fixed by being pushed into the inverted L-shaped hole 35a. If the lock is released,
The lock bar 35b is moved toward the moving groove 35c,
Here, by moving the lock bar 35b in the vertical direction, the column 33 can be easily moved up and down.

The characteristic feature of the door holder 30 according to the first embodiment is that the support plate 37 is provided on the top of the support column 33, and the hanging claw 38 is attached to the base column 31. Here, the receiving plate 37 projects toward the hoistway side of the dam waiter, and the upper door 17 of the access door is placed on this. On the other hand, the hanging claw 38 also
It is designed so that it can project to the hoistway side of the dam waiter and hang the lower door of the access door. Furthermore,
In the door holder 30 according to the first embodiment, a lock 39 is attached to the base post 31. In the embodiment, the hanging claw 38 is tightened with the two metal fittings 38a so that the base 3 is
It can be moved up and down by loosening the screw 41. That is, as shown in FIG. 4B in which the portion B in FIG. 3 is enlarged, in the first embodiment, the hanging claw 38 is rotatable with respect to the metal fitting 38a and the tip of this metal fitting 38a. Claw 38 attached to
b and a screw 41 for sandwiching and fixing the metal fitting 38a to the base post 31. As is clear from this figure, since the claw portion 38b is rotatable, the screw 41 is loosened and the hanging claw 38 is moved to an appropriate position, and then the claw portion 38b is moved to lock the lower door 18. To be done.

In the door holder 30 according to the first embodiment having such a structure, as shown in FIG.
The upper door 17 is placed on the receiving plate 37, and the lower door 18 is hung by the hanging claws 38. That is, in order to maintain the open / close state of the door of the dam waiter, the door holder 30 is first set up on the floor surface 43 on the door side. In this case, in the embodiment, since the pedestal 34 is provided at the lower part of the base post 31, this operation can be performed only by placing the door holder 30 on the floor surface 43. And at this time,
The locking tool 39 is locked to the side wall 44 of the loading / unloading opening 15 so that the weight of the loading / unloading opening door does not cause the entire door holder 30 to collapse toward the hoistway. That is, this locking device 39
The locking of the door holder 30 restricts the movement of the door holder 30 toward the hoistway. Further, the door holder 30 is prevented from inclining due to the functions of the locking member 39 and the pedestal 34, and the work safety is improved.

As described above, in the door holder 30 according to the first embodiment, the lower door 18 is hung by the hanging claw 38, so that the upper door 17 can be independently lifted and the upper door 17 is lifted. Even in the case of being damaged, it is possible to prevent the lower door 18 from moving to the lowermost part in conjunction with this. That is, in the state of being suspended by the suspending claw 38, the wire that suspends the upper door 17 can be freely moved, and the upper door 17 can be moved to the uppermost position by adjusting the lock 35. It is possible to move. In short, in the door holder 30 according to the first embodiment, as shown in the side view of FIG. 5, the lower door 18 is suspended and fixed by the suspending claw 38,
The upper door 1 can be independently operated by moving the lock bar 35b up and down.
It is possible to move 7 up and down.

[Second Embodiment] In the second embodiment, the lock 3 is used.
5 is different from the first embodiment. In the second embodiment,
The lock 35 is composed of a through hole 45 and a pull-out rod 46. When this lock is used, the column 33
Through hole 45a and through hole 45b provided in the base post 31
The fixing is performed by aligning with and inserting the insertion / removal rod 46 there. Other configurations and effects
This is similar to the first embodiment.

The door retainer for the access door of the dam waiter according to this embodiment can be applied not only when the access door is manual, but also when it is automatic. That is,
In the case of an automatic entrance / exit door, when the power is turned off, there is almost no difference from that of a manual operation, and it is possible to maintain the open state in the same manner as the manual operation.

[0022]

As described above, in the door retainer for the doorway of the dam waiter according to the present invention, it is possible to maintain the open state of the doorway from the outside.

Further, in the dam waiter according to the present invention, since the upper door can be pushed up independently while hanging and fixing the lower door by the hanging claws, the upper door is moved to the highest position so that a worker and other tools can easily enter it. It is possible to lift.

By synergizing these effects, the door retainer for the access door of the dam waiter according to the present invention is
The opened and closed doors can be maintained safely and easily, and the safety and efficiency of inspection and maintenance work can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a door holder for an access door of a dam waiter according to a first embodiment.

FIG. 2 is a vertical cross-sectional view for explaining the operation of the door holder according to the first embodiment.

FIG. 3 is a diagram showing an example of attachment of a door holder according to the first embodiment.

FIG. 4 is a diagram for explaining a lock and a hanging claw.

FIG. 5 is a side view for explaining the operation, action, and effect of the door holder according to the first embodiment.

FIG. 6 is a perspective view showing a door holder according to a second embodiment.

FIG. 7 is a front view showing a dam waiter having a two-door door opened and closed vertically.

FIG. 8 is a diagram showing a conventional door holder for a doorway of a dam waiter.

[Explanation of symbols]

 13 hoistway 15 entrance / exit door 17 entrance / exit door (upper door) 18 entrance / exit door (lower door) 30 door retainer 31 base pillar 33 pillar 34 pedestal 35 lock 35a inverted L-shaped hole 35b lock bar 37 receiving plate 38 hanging claw 38a scissors fitting 38b Claw 39 Locking tool 41 Screw 43 Floor surface 45, 45a, 45b Through hole 46 Insertion and removal rod

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[Procedure amendment]

[Submission date] January 11, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art A dam weighter is an industrial elevator for carrying small cargo and is also called a lift. The dam waiter does not carry people because it is small, but its structure is similar to that of a normal elevator, and the basket moves up and down the hoistway to open cargo doors and doors for loading and unloading.
Here, when these doors are automatic doors like ordinary elevators, the automatic door of the entrance and exit is opened and closed in conjunction with the automatic door of the basket, but the door of a normal dam waiter is a manual type, It is usually suspended in the hoistway.
Also, doors of Damuweta, unlike the conventional elevator, opening on the one door, or, if a vertical opening of 2 chromite is typical.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

The present invention has been made in view of the above problems, and an object thereof is to provide a door holder that can easily hold the open state of the inlet / outlet door of a dam waiter from the outside. Especially.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

In order to solve the above problems, in the door retainer for the door of the dam waiter according to the present invention, the two doors provided on the hoistway side of the dam waiter are opened and closed vertically. A door retainer for holding an open / closed state of an entrance / exit door, a base pillar standing upright on the floor surface of the dam waiter on the entrance / exit opening side, a pillar that fits to this base pillar, and moves vertically, and this pillar. provided, overhanging the shaft side, a receiving plate for supporting by placing a funnel of loading and unloading opening door, provided on the base pillar protrudes in the hoistway side,
A hanging claw supports down over the Orito the loading and unloading opening door, characterized in that it comprises a and a lock for restricting movement of the strut.

Claims (2)

[Claims] 1. A two-door upper and lower door for a dam waiter, which is a door retainer for holding the door in an open state, the base pillar standing upright on the floor of the dam waiter on the entrance side, and a base pillar fitted to the base pillar. A column that moves in the vertical direction, a support plate that is provided on the column and projects toward the hoistway of the dam waiter, and that supports and supports the upper door of the access door, a lock that restricts the movement of the column, and the base. A door holder, which is provided on a pillar, and which protrudes toward a hoistway of a dam waiter and which hangs and supports a lower door of the access door. 2. The door holder according to claim 1, further comprising: a lock for locking the base pillar to a wall of the dam waiter on the inlet / outlet side so as to prevent the base pillar from moving toward the hoistway. A characteristic door holder.