JPH06255960A - Door device - Google Patents

Abstract

PURPOSE:To improve the opening/closing operability by constituting an interlocking link with a plurality of pantagraphs arranged in the vertical direction, integrating the link member at the connection part of the adjacent pantagraphs to make a composite mechanism, and pivotably mounting the respective transverse rod members in a successive manner on the connection part at the tip of the continuous pantagraphs. CONSTITUTION:When transverse rod members 22, 23 are lowered to close the door, an interlocking link mechanism 30 is developed. The transverse rod members 22, 23 are lowered as each pantagraph 31 is developed and the connection part at the tip is moved. Since the transverse rod members 22, 23 are energized upward by a weight member 80 for balancing, a door body 21 is lowered without strong operating force. When an opening 2 is opened, the transverse rod members 22, 23 are moved in the direction where the door is opened, and the interlocking link mechanism 30 is also folded. Since the weight member 80 for balancing energizes the transverse rod members 22, 23 upward, the door body 21 can be opened with small operating force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device having an opening formed in the front surface of a lifting basket and opening and closing the opening by means of a vertically opened door body.

[0002]

2. Description of the Related Art Conventionally, in order to open and close an opening on the front surface of a lifting basket, a vertically open door body is provided, and the door body is guided by a guide member provided at a side edge of the opening so as to be vertically movable. ing. In order to improve the opening / closing operability of the door body, it is considered to provide the door body with a balancer via a string member. In this case, a guide member for the balancer is generally provided along the guide member, and the guide member generally guides the balancer in the vertical direction.

[0003]

However, in such a conventional technique, the guide member cannot be provided and the opening / closing operability cannot be improved unless there is sufficient installation space on the side of the guide member. There was a problem.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a door device capable of improving the opening / closing operation operability.

[0005]

The gist of the present invention for achieving the above object is to provide an opening (2) on the front surface of a lifting basket (1), and to open and close a door body (2).
In the door device which opens and closes the opening (2) by 1),
Guide rails (11, 12) for guiding both side portions of the door body (21) in the vertical direction are arranged along both side edge portions of the opening (2) from the front, and the door body ( 21) includes a plurality of horizontal rod members (22) that move up and down between a storage position in which they are stored above the opening (2) in a vertically overlapping manner and a closed position in which the space in the vertical direction is widened to close the opening (2). , 23) and an interlocking link mechanism (30) having a base pivotally attached to the upper edge of the opening (2) and interlocking the lateral rod members (22, 23) between the stored position and the closed position. The interlocking link mechanism (30) has a plurality of pantographs (31) arranged in the vertical direction, and the link members (31a to 31a) are connected to each other at the connecting portions of the adjacent pantographs (31).
31d) are integrally connected to form a composite mechanism, and the horizontal rod members (22, 23) are sequentially pivotally connected to the connecting portions at the ends of the pantographs (31) connected to each other to form the opening (2). ) A shake preventing member (70) provided upright on the upper edge portion
A slidable string member (60) connected to the horizontal rod members (22, 23) located at the upper step of the door body (21), and guided by the shake preventing member (70) so as to be vertically movable, A door device, comprising: a weight member (80) for balancing, which urges the door body (21) upward through the hanging string member (60).

[0006]

Since the door body (21) for opening and closing the opening (2) is composed of the plurality of lateral rod members (22, 23), when the opening (2) is opened, the plurality of lateral rod members (22, 23) are formed. Two
3) vertically overlap each other and are stored above the opening (2). The interlocking link mechanism (30) is also housed by folding each pantograph (31) above the opening (2). At this time, the balance weight member (80) is at the lower position.

To close the door, each lateral rod member (22,
When 23) descends, the interlocking link mechanism (30) expands. The lateral rod members (22, 23) descend as the pantograph (31) expands and the connecting portion at the tip thereof moves. At this time, the horizontal rod members (22, 23) located on the upper stage of the door body (21) have a smaller movement amount, and the horizontal rod members (22, 23) located on the lower stage have a larger movement amount. Further, since the horizontal rod members (22, 23) are urged upward by the weight member (80) for balancing, the door body (21) does not descend rapidly due to its own weight, and It descends without applying strong operating force.

When opening the opening (2), the lateral rod members (22, 23) move in the door opening direction, and the interlocking link mechanism (30) is also folded. Lateral rod members (22, 23)
Rises as each pantograph (31) is folded and the connecting portion at its tip moves. At this time, the weight member for balance (80) is the lateral rod member (22, 2).
Since 3) is biased upward, the door body (21) can be opened with a relatively small operating force.

The hanging string member (60) is connected to the lateral rod members (22, 23) located at the upper step portion of the door body (21), and when the door body (21) is opened and closed, the upper step portion. Since the horizontal rod members (22, 23) located in the lower stage have smaller vertical movements as they are located in the upper stage, the hanging string member (60) does not move largely in the vertical direction, and thus the weight member (80) for balancing. Even when the space above the lifting basket (1) is narrow in the vertical direction, the weight member (80) for balancing can be installed, and the opening / closing operability can be improved. it can.

When the balance weight member (80) moves up and down, the balance weight member (80) is guided by the shake preventing member (70) and does not shake.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment of the present invention. As shown in FIGS. 1 and 2, an opening 2 is formed in the front surface of the elevator car 1. A door device 20 is provided to open and close the opening 2. A shelf (not shown) is provided in the elevating basket 1, and the shelf is supported by inwardly projecting support pins (not shown) planted in both side walls 4 of the elevating basket 1.

Along the side edges of the opening 2, guide rails 11,
12 are fixed. A door 21 that opens up and down in the opening 2
Is provided. The door body 21 has a plurality of lateral rod members 22, 23, ...
The horizontal rod members 22, 23 ... Are sized to overlap each other above the opening 2 in the vertical direction. The lateral rod member 23 at the lowermost end is formed wider than the other lateral rod members 22.

An interlocking link mechanism 30 for interlocking the lateral rod members 22, 23 ... With a closed position and a stored position is provided. The horizontal rod member 2 is provided on the guide rails 11 and 12.
Both end portions 22a and 23a of 2, 23 ... Are fitted so as to be movable in the vertical direction.

As shown in FIG. 1, the interlocking link mechanism 30 has a basic configuration in which pantographs 31 are connected in the opening / closing direction of the door body 21.

Each pantograph 31 has four link members 3
1a, 31b, 31c and 31d, the link members 31b and 31c are connected by the connecting pin 33, and the connecting pin 33 is connected to the lateral rod member 22. The link members 31a and 31d are connected by the connecting pin 34, and the roller 40 pivotally attached to the connecting pin 34 is fitted in the lateral rod member 22 so as to be rollable in the guide groove.

The link member 31c forming the upper pantograph extends obliquely downward and is integrally formed with the link member 31a forming the lower pantograph. Similarly, the link member 3 constituting the upper pantograph
1d extends obliquely downward and is integrally formed with a link member 31b that constitutes a lower pantograph.

An upper frame 13 is erected on the upper ends of the guide rails 11 and 12, a link member 31c is connected to the upper frame 13 by a connecting pin 33, and a connecting pin 3 is connected to the link member 31d.
The roller member 40 pivotally attached via 4 is fitted in the guide groove of the upper frame 13. Similarly, the link member 31b is connected to the lower frame 14 by the connecting pin 33, and
The roller member 40 pivotally attached to a through the connecting pin 34,
It is fitted in the guide groove of the lateral rod member 23.

The upper frame 13 has a pair of support brackets 1 on both sides.
5 are provided, and each support bracket 15 has a pulley member 5
0 is pivotally attached so that it can roll. The upper end of the support bracket 15 is reinforced by a support rod 16 which stands from the upper edge of the opening 2. A hanging string member 60 is wound around the pulley member 50, and one end portion 61 of the hanging string member 60 is connected to the horizontal rod member 22 in the second stage from the top of the door body 21.

A guide rod 70, which is a shake preventing member, is erected on the upper edge of the opening 2, and the center portion of the weight member 80 for balancing is fitted to the guide rod 70 so as to be vertically movable. is doing. The other end of each hanging string member 60 is connected to both sides of the balance weight member 80.

As shown in FIGS. 3 to 5, the weight member 80 for balance has a weight member 85 for balance adjustment.
Is posted. Weight member 85 for balance adjustment
A member 86 for preventing misalignment having a U-shaped cross section is externally fitted to this. The weight member 85 for balance adjustment is various weight members having different weights, which are exchanged or overlapped with each other to adjust the balance with the door body 21.
The method for preventing the shift of the weight member 85 for balance adjustment is not limited to this. For example, pins are planted on both sides of the weight member 80 for balance, and the weight member 85 for balance adjustment is fitted to the pin. May be.

In addition to the balance weight member 80 and the like,
For example, a tension spring member for balance may be provided side by side, and the tension spring member for balance may be connected to the uppermost horizontal rod member 22 to urge the door body 21 upward.

Next, the operation will be described. Since the door body 21 that opens and closes the opening 2 is composed of the plurality of lateral rod members 22 and 23, when the opening 2 is opened, the plurality of lateral rod members 2 are opened.
2 and 23 are vertically stacked and are stored above the opening 2. The interlocking link mechanism 30 is also housed by folding each pantograph 31 above the opening 2.
At this time, both end portions 23a of the lateral rod member 23 are elastically locked by locking members (not shown). In addition, the weight member 80 for balancing is located below the guide rod 70.

Each lateral rod member 2 is used to close the door body 21.
When 2 and 23 descend, the interlocking link mechanism 30 expands. The uppermost lateral rod member 22 descends as the uppermost pantograph 31 expands and the connecting pin 33 at its tip moves. The second horizontal rod member 22 from the uppermost end
Similarly descends as the second pantograph 31 from the uppermost end develops and the connecting pin 33 at its tip moves.

As each pantograph 31 moves downward, the amount of movement of the tip of the upper pantograph 31 is added, and the lateral rod member 23 at the lowermost end descends with the largest amount of movement. When the tip of the lowermost lateral rod member 23 reaches the end of the opening, all the lateral rod members 22 and 23 are deployed to fully close the opening 2. Further, when the second horizontal rod member 22 descends, the weight member 80 for balancing is pulled by the hanging string member 60 and ascends, and is positioned above the guide rod 70.

The amount of movement of the connecting pin 33 at the tip of the second pantograph 31 from the uppermost end is smaller than the amount of movement of the connecting pin 33 at the tip of the lower pantograph 31, for example, the moving amount of the tip of the pantograph 31 at the lowermost end. Connecting pin 33
Significantly less than the amount of movement. Each lateral rod member 22, 23
When the descent of the horizontal rod members 22 and 23
2a and 23a pass through the locking spring 83 (not shown) while flexing against the elastic force.

When opening the opening 2, the horizontal rod member 23 at the lowermost end moves in the door opening direction with the largest amount of movement, and the moving amount decreases toward the upper end, so that the second horizontal rod member 22 is moved. It descends with a small amount of movement. When fully opened, the lower ends of the horizontal rod members 22 are aligned, and the interlocking link mechanism 30 is also folded and stored. At this time, both end portions 23a of the lateral rod member 23 are elastically locked by the locking spring 83a.

At this time, the weight member 80 for balancing
The second horizontal rod member 2 through the hanging string member 60.
Since 2 is biased upward, the door body 21 can be opened with a relatively small operating force. 6 and 7 show a second embodiment of the present invention.

In the present embodiment, the second horizontal rod member 22 is provided separately from the weight member 80 for balancing.
To the wire member 80a.
The opening / closing operability is improved by urging a by the winding drums 80b and 80c in the winding direction.

8 to 11 show the pantograph 3 described above.
1 has different shapes. That is, in the pantograph 91 shown in FIG. 8, the link member is appropriately extended,
The pantograph 91 is expanded to the central portion side of the opening 2 in every third step, and a tension spring 95 is installed on the expanded pantograph 91 at the tip ends thereof to prevent falling of a conveyed object put in the elevating basket 1. Has an aim.

In the pantograph 91a shown in FIG. 9, a link member corresponding to the lower step portion is appropriately extended so as to narrow the width of the lower portion of the opening 2, and a tension spring 95a is also installed, for example, a bottle or the like. The purpose is to prevent falling.

The pantograph 91b shown in FIG. 10 is such that the pantograph 91b is greatly expanded to the central portion side of the opening 2 at every third stage, and a tension spring 95b is installed between the tips of the expanded pantograph 91b. is there.

The pantograph 91c shown in FIG. 11 extends from the upper part to the lower part with a constant width toward the central portion of the opening 2, and the tension spring is not installed, but may be installed.

In the pantograph 91d shown in FIG. 12, reinforcing link members 91e are provided at least on the uppermost and lowermost pantographs 91d so that the connecting pin 91f is not intensively loaded.

[0034]

According to the door device of the present invention, the hanging string member is connected to the lateral rod member located in the upper step portion of the door body, and the lateral rod member located in the upper step portion is connected via the hanging string member. Since the weight member for balance is connected to the horizontal weight member for vertical movement when the door is opened and closed, the weight member for balance is not moved upward and downward in the space above the elevator car. It can be provided by utilizing, and the operability of opening and closing can be enhanced.

[Brief description of drawings]

FIG. 1 is a front view of a door device showing a first embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of the door device showing the first embodiment of the present invention.

FIG. 3 is a front view of a weight member for balance and the like showing the first embodiment of the present invention.

FIG. 4 is a view on arrow IV in FIG.

FIG. 5 is a view on arrow V in FIG.

FIG. 6 is a front view of a door device showing a second embodiment of the present invention.

FIG. 7 is a cross-sectional view of essential parts of a door device showing a second embodiment of the present invention.

FIG. 8 is a front view of a door device showing another embodiment of the present invention.

FIG. 9 is a front view of a door device showing another embodiment of the present invention.

FIG. 10 is a front view of a door device showing another embodiment of the present invention.

FIG. 11 is a front view of a door device showing another embodiment of the present invention.

FIG. 12 is a front view of a door device showing another embodiment of the present invention.

[Explanation of Codes] 1 ... Elevating basket 2 ... Opening 4 ... Side wall 11, 12 ... Guide rail 20 ... Door device 21 ... Door body 22, 23 ... Horizontal rod member 30 ... Interlocking link mechanism 31 ... Pantograph 40 ... Roller member 50 ... Pulley member 60 ... Hanging string member 70 ... Guide rod (shake preventing member) 80 ... Weight member for balance 85 ... Weight member for balance adjustment

Claims (1)

[Claims] 1. An opening is provided in the front of the elevator basket,
In a door device that opens and closes the opening by a vertically-opening door body, guide rails in which both side portions of the door body are guided in the vertical direction are respectively arranged along both side edge portions of the opening from the front, The door body includes a plurality of horizontal rod members that vertically move to a storage position where the door body is vertically overlapped and stored above the opening, and a closed position in which the vertical space is widened to close the opening.
A base is pivotally attached to the upper edge of the opening, and an interlocking link mechanism that interlocks each lateral rod member with the storage position and the closing position is provided, and the interlocking link mechanism has a plurality of pantographs in the vertical direction. In a continuous manner, link members are integrally connected at the connecting portions of adjacent pantographs to form a composite mechanism, and the lateral rod members are sequentially pivotally connected to the connecting portions at the ends of the connected pantographs to connect them, A shake preventing member that is erected on an upper edge portion, a hanging string member that is connected to a lateral rod member that is located at an upper step portion of the door body, and is guided by the shake preventing member so as to be vertically movable, and the hanging A door device comprising: a balance weight member for urging the door body upward through a string member.