JPH01303285A - Elevator hall door device in manual on-off system - Google Patents

Abstract

PURPOSE:To make safety on-off operation possible and a structure simple enough by making a user capable of performing his manual on-off operation at the desired control speed when a cage is reached to the floor, in an elevator hall door device for a home elevator or the like. CONSTITUTION:When an elevator cage is reached to a floor, an actuating cam 45 attached to this cage makes a roller 32 rotate clockwise. With this rotation, a rotary hook 31 is rotated clockwise, and engagement between this hook 31 and a door lock hook 6c is released. In this state, if a user operates a handle part 6g and a hall door 6 is moved in the opening direction, a door pull 21 is rotated clockwise, so that a hook 22 is also rotated clockwise. Its engagement with an opening 50 is released by this rotation, so that the hall door 6 is going to an open state by on-off operation through the handle part 6g of the user. In this case, if the hall door 6 is slightly turned to the open state, pressure of an armature of a switch 38 of the hook 6c is released, so that an operation circuit of the elevator is interrupted.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a manual opening/closing type elevator landing door device, and particularly relates to a manual opening/closing type elevator landing door device that has a simple structure, is safe, and easy to operate. .

[Prior Art] Recently, small-sized elevators have been installed in private residences, and low-cost elevators that occupy less space have been developed for this purpose. Landing door devices for this type of small elevator are roughly divided into two types, which are proposed in Japanese Utility Model Application Publication No. 56-3180 and Japanese Utility Model Application Publication No. 50-137762, respectively.

The first method, as disclosed in Japanese Utility Model Application Publication No. 56-3180, uses the operation of the door opening/closing mechanism and grasping device on the car side to unlock and lock the landing door. be.

The second method, as disclosed in Japanese Utility Model Publication No. 50-137762, is an electromagnetic retirement system that is installed on the car side and moves forward toward the landing door when the car stops on the floor. The operating stroke of the cam is used to unlock and lock the landing door.

As mentioned above, these two types of landing door devices are both electric opening/closing systems in which the car is equipped with a door opening/closing mechanism. On the other hand, manual opening/closing landing door devices, which have a locking mechanism on the handle of the landing door or a door opening/closing mechanism linked to the car door, are used in some older elevators. I'm here.

[Problem to be solved by the invention] In the conventional electric opening/closing landing door device mentioned above.

An electric motor, an opening/closing mechanism including a chain and a link mechanism, a locking device for the landing door, an unlocking means for unlocking and relocking the locking device upon landing, a grasping mechanism, and a retiring cam mechanism are required, which increases manufacturing costs. As a result, the structure becomes more complex.

In addition, in many cases, these mechanisms, devices, and means are attached to the upper part of the first car, so the car needs to be made solid, which increases the weight of the car and causes the upper part of the car to be attached at the top floor stop position. Considerable top space must be provided. Even if some of these mechanisms, devices, and means are attached to the landing door, the landing door becomes larger, which is not preferable as a home elevator in any case.

Furthermore, compared to regular elevators installed in buildings, home elevators are used much more frequently by the elderly, children, and people with disabilities, so the normal door opening time of electric opening/closing systems is not convenient for users. Too short. If an opening extension button is provided to extend the door open holding time, the structure will become complicated, and it will also be necessary to provide a safety device to prevent jamming, which will increase manufacturing costs.

As the structure becomes more complex, the occurrence rate of failure increases and the cost for maintenance and inspection also increases.

On the other hand, the conventionally used manual opening/closing landing door device,
The structure is complex, the whole is large, and the operation is complicated, making it unsuitable for use in home elevators.

The present invention was made in view of the current state of elevator landing door devices as described above, and its purpose is to enable users to operate the door at a desired operating speed easily and safely.
The purpose of the present invention is to provide an elevator landing door device of a manual opening/closing type which is entirely miniaturized.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention allows the user to manually operate the handle of the landing door when the boarding boat lands on the floor.
In the manual opening/closing type elevator landing door device in which the landing door is opened and closed, the elevator landing door device is provided near the prefectural handle,
a first locking device that locks the landing door in the opening/closing direction and is unlocked in conjunction with the manual operation;
A second locking device is provided at a position apart from the first locking device, locks the landing door in the opening/closing direction, and this lock is released when the passenger lands on the landing. There is.

[Function] In the present invention, the landing door can be locked in the opening/closing direction by the first locking device provided near the handle of the landing door and the second locking device provided at a position away from the handle of the first landing door. Locked.

Then, when the car lands on the floor and the user manually operates the handle of the landing door, the first locking device is unlocked,
The lock of the second locking device is released when the car lands on the floor, for example, by pushing in an operating cam attached to the car, so that the landing door is opened. In this case, when the landing door moves a predetermined distance due to manual operation by the user, the second
The elevator operating circuit is cut off by the rotary device.

Therefore, the elevator stops with the operating circuit cut off from the elevator, and the first landing door can be opened and closed completely safely by the user at a desired operating speed, allowing the elevator to operate.

[Example] Hereinafter, an example of the present invention will be described in detail using FIGS. 1 to 9.

Here, FIGS. 1 to 9 are diagrams explaining the present invention in detail, FIG. 1 is a rear view showing the configuration of the landing door device, and FIGS. 2 and 3 are views showing the overall configuration of the elevator. 4 and 5 are sectional views showing the structure of the landing door device, FIG. 6 and 7 are explanatory views showing the structure of the first locking device, and FIG. 8 is a vertical sectional view and a horizontal sectional view, respectively. and FIG. 9 are explanatory diagrams showing the configuration of the second locking device.

As shown in FIGS. 2 and 3, a hoistway 1 is formed within the building, a steel frame 2 is fixed within this hoistway 1, and a support beam 2a is fixedly straddled horizontally between these steel frames 2. ing.

A hoist 3 is fixed to this support beam 2a, and a rope end 4a is provided.

On the other hand, inside the hoistway 1, a ride 5 is disposed so as to be movable while being guided by a guide rail 7.A pulley 5a is attached to the bottom of the ride 5, and similarly, a pulley 5a is attached to a guide rail 9 inside the hoistway 1. A counterweight 8 is disposed so as to be guided and movable, and a pulley 8a is fixed to the counterweight 8. The main rope 4 is wound around the sheave 3a of the hoisting machine 3 mentioned above,
One end of the main rope 4 is fixed to the rope end 4a via a pulley 5a of a weight 5, and the other end of the main rope 4 is fixed to the rope end 4a via a pulley 8a of a counterweight 8. .

In addition, the car door 5 is provided with a two-door, single-sliding type car door 5b, and opposite to this car door 5b, a single-door, single-sliding type landing door 6 is provided on each floor. A shock absorber 11 as a safety device is provided on the pit surface 1a at the bottom of the road 1.

In this way, the hoist 5 is guided by the guide rail 7 and raised or lowered in the hoistway 1 by the hoisting machine 3, which is rotated by a control device (not shown). A single-pull traction type elevator is constructed.

As shown in FIGS. 1 and 4, a rail 6d is horizontally fixed to the upper part of the entrance of the hoistway formed in the building, and a hanger 6b is engaged with the rail 6d in a manner that allows the user to move freely. A panel-shaped landing door 6 made of wood, metal, or synthetic resin is fixed to si. A shoe 68 is fixed to the lower end of this landing door 6, and this shoe 6e is adapted to slide within a sill 6f fixed to the floor of the building.

A handle portion 6g is provided near one side of the landing door 6, as shown in FIGS. 6 and 7, and a pull device 20 is attached adjacent to the handle portion 6g.

This pull device 20 includes a hook 22 that is rotatable about a shaft 23 on a plate 25, a pull 21 that is integrally extended in a direction perpendicular to the hook 22, and an extension portion 24 that is integrally formed with the hook 22. further provided with a plate 25
A compression spring 27 is disposed between the end plates 40 and 41 provided above, with one end fixed to the end plate 4o, and the other end of the compression spring 27.

A biasing force is applied to the extension portion 24 in a counterclockwise direction, and the extension portion 24 is pressed against the end portion 41 by this biasing force.

Then, the hook 22 is inserted into an opening 50 formed in the wall of the building at the entrance/exit of the hoistway 1 opposite to the side rail of the landing door 6, and as shown in FIG.
In order to receive a counterclockwise force, the handle 21 and the hook 22 are biased counterclockwise around the shaft 23, and the hook 22 engages with the opening 50 with an appropriate amount of engagement Q1, and the landing door is closed. 6 is locked in the opening/closing direction as shown by the solid line. In addition, by adjusting the position of the end plate 41 by adjusting the screws, the positions of the handle 21 and the hook 22 can be set to optimal positions.

In this state, the first landing door 6 faces the opposite building wall via the stopper 51, and there is a distance A between the landing door 6 and the building wall, and a distance G between the end of the hook 22 and the building wall.

is set to a necessary minimum value, and the fifth landing door 6 is locked to the building wall at the entrance/exit of the opposing hoistway 1 while maintaining highly accurate mutual positions.

Further, as shown in FIGS. 1, 5, and 8, a door lock hook 6c is integrally attached to a side edge hanger 6b to which the pull device 20 of the landing door 6 is attached. A door lock device 30 is formed to protrude in the direction of the house wall, and a door lock device 30 is provided on the opposing building wall portion. In this door lock device 30, a rotary hook 31 rotatable about a shaft 34 is formed on a plate 35 and extended toward the door lock hook 6C so as to be able to engage with the door lock hook 6c.

A lever 33 is extended from the rotary hook 31 to be rotatable about a shaft 34 in a right angle direction, and a roller 32 is rotatably attached to the tip of the lever 33.

Further, the door lock device 30 is provided with a spring 37 having one end fixed to the plate 35, the other end of the spring 37 is locked to the rotating hook 31, and the rotating hook 31 is biased counterclockwise by the spring 37. , this rotating hook 3
1, the side of the lever 33, which is also biased counterclockwise, is pressed against a stop 36 fixed to the plate 35. A switch 38 is attached to the plate 35 of the door lock device U30, and this switch 38 is turned on by the aforementioned door lock hook 6c. The solid line in FIG. 8 shows the state in which the landing door 6 is locked, and in this locked state, the door lock hook 6c and the rotary hook 31 are separated by an appropriate distance R.
are engaged with each other while holding the cz.

In the embodiment with such a configuration, the pull device 20 and the opening 50 constitute a first lock device, and the door lock device 30 and the door lock hook 6c constitute a 22nd lock device.

Next, the operation of the embodiment will be explained.

When the elevator car lands on the floor, an operating cam 45 attached to the car and shown in FIGS. 1 and 5 rotates the roller 32 clockwise as shown by the dotted line in FIG.

As the roller 32 rotates, the lever 33 rotates, and the rotary hook 31 integrally formed with the lever 33 rotates clockwise, causing the rotary hook 31 and the door lock hook 6C to rotate.
The second locking device is unlocked.

In this state, when the user operates the handle 6g to move the landing door 6 in the opening direction, the handle 21 rotates clockwise as shown by the dotted line in FIG. 6 by operating the handle 6g. As the handle 21 rotates, the hook 22 integrally formed with the handle 21 rotates clockwise. By rotating the hook 22 clockwise, the engagement between the hook 22 and the opening 50 is released, so that the user's handle 6g
As a result of the door opening operation, the landing door 6 becomes open. In this case, when the landing door 6 becomes slightly open,
Since the contact piece of the switch 38 of the door lock hook 6c is released, the elevator operating circuit is cut off.

Therefore, the elevator stops operating, and the user slowly opens the landing door 6 at a desired operating speed and gets into the car, and then manually closes the landing door 6 slowly and safely, and the door locks. Hook 6c is switch 38
The elevator comes into operation when it comes into contact with the contact piece. In this state, the car moves towards the destination floor by operating the destination button on the operation panel inside the car or the call button on another floor.

For example, if an earthquake occurs and the landing door 6 moves in the opening direction even though the user does not operate the handle 6g, or if the landing door 6 moves in the opening direction due to a person leaning on it, the 7th As shown in the figure, the end of the hook 22 has an opening 50.
In the state where the first landing door 6 is locked with the part 8, a gap A2 is maintained between the first landing door 6 and the opposing building wall, and the first locking device maintains the locked state.

At this time, as shown in FIG. 9, the door lock hook 6c is suppressing the contact piece of the switch 38, so the elevator operation circuit is not interrupted and the elevator is in an operable state.

That is, in this case, as is clear from FIGS. 6 and 7, since the hook 22 moves by a distance G1, the distance between the landing door 6 and the building wall facing it is A, =A1+G.

However, as is clear from Figures 8 and 9,
Door lock hook 6c is at distance G, switch 3 even if moved
It is designed to be on the contact piece of No. 8, and is set to G□<G2:G1+G3 in FIGS. 8 and 9.

In this way, the operating cam 40 on the passenger side 5 releases the lock of the second lock group upon landing of the first passenger car 5 without requiring an extension and retraction control mechanism, and the operation circuit of the elevator is activated. A mechanism in which the shutoff is performed by the user's manual operation of the first lock yjl can be configured with a simple structure. Also.

According to the embodiment, the user can safely operate the landing door 6 at a desired operating speed while visually checking the degree of opening and closing, and the user can accidentally operate the landing door 6 due to an earthquake or by leaning against the landing door 6. will not be opened, ensuring the safety of users.

The embodiment has a double locking device of a first locking device and a second locking device, so that the landing door 6 is reliably locked with high positioning accuracy, and the elevator operation circuit is cut off for the user. In this state, the landing door 6 can be opened and closed safely by manual operation. In addition, door opening/closing I like conventional
a A gripping device and a retiring cam that are linked to the side are no longer required, the structure is simple, the weight of the car is reduced, and the hoist 1 and hoist 3 are also downsized, making the whole system significantly smaller and manufacturing costs lower. , a landing door device suitable for use as a home elevator is provided.

[Effects of the Invention] As explained in detail above, according to the present invention, the locking operation is performed safely with high precision, and the user manually operates the car at the desired operating speed when landing on the car, thereby safely locking the car. It is possible to provide a manual opening/closing type elevator landing door device which performs opening/closing operations, has a simple and compact structure, and reduces manufacturing costs.

[Brief explanation of the drawing]

1 to 9 are diagrams showing the configuration of an embodiment of the present invention,
FIG. 1 is a rear view showing the installation of the landing door device, and FIG. 2 is a longitudinal sectional view showing the overall structure of the elevator. FIG. 3 is a cross-sectional view showing the overall structure of the elevator, FIG. 4 is a cross-sectional view showing the structure of the landing door device, FIG. 5 is a cross-sectional view showing the structure of the second lock device, and FIGS. The figure is an explanatory diagram showing the configuration of the first locking device, and FIGS. 8 and 9 are explanatory diagrams showing the configuration of the second locking device. 1...Hoistway, 3...Hoisting machine, 4...
...Main rope, 5...Car, 6...
...Landing door, 6b...Hanger, 6c...
...Door lock hook, 6d...Rail, 6
e... Shoe, 6f... Sill, 6g.
...2...Handle part, 20...Handle device, 21.
...Holder, 22...Hook, 23...
...Axis, 24...Extension part, 25...
Plate, 27... Compression spring, 30...
・Door lock device, 31... Rotating hook, 32
...Roller, 33...L/B, 34.
...Shaft, 35...Plate, 36...
...Stopper, 37...Spring, 38...
...Switch, 45...Operating cam. Figure 1 45-X, 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 ←〒-42

Claims (1)

[Scope of Claims] 1. In an elevator landing door device of a manual opening/closing type in which the landing door is opened and closed by a user manually operating the handle of the landing door when the car lands on the floor, the handle a first locking device provided near the landing door that locks the landing door in the opening/closing direction and is unlocked in conjunction with the manual operation; and a first locking device provided at a position distant from the first locking device. and a second locking device which locks the landing door in the opening/closing direction and whose lock is released when the car lands on the floor. 2. The manual opening/closing type elevator hall according to claim 1, wherein the second locking device is configured to interrupt the operation circuit of the elevator by opening the landing door after unlocking. Door device. 3. A manual opening/closing type elevator landing door device according to claim 1, wherein the second locking device is configured to be unlocked by an operating cam attached to the car. 4. In claim 2, even if the landing door moves in the opening direction of the landing door by the maximum permissible movement allowed by the first locking device while the lock is maintained, the second locking device does not control the operation circuit of the elevator. An elevator landing door device of a manual opening/closing type, characterized in that it is configured so as not to be interrupted.