JPS59227683A - Vertically opened door device of elevator for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a vertical opening door device for an automobile elevator used for raising and lowering a general automobile or a special automobile such as a forklift.

[Background of the invention]

Figure 1 is a front view showing the landing entrance of an automobile elevator equipped with a two-panel top-opening door device, in which 1 is the landing floor, 2
are the left and right pillars, 3 is the door rail attached to these, 4
is the lower door, and 5 is the upper door. In addition, 6 is the upper and lower door 4,
5 is a door shoe attached to the top and bottom of both sides, 7 is an idle pulley attached to the upper door 5,
8 is an idle pulley attached to the left and right columns 2, 9 is a driving sprocket attached to the right column 2, and 1° is a chain connecting the upper and lower doors 4, 5 and the balance weight 11. The upper and lower doors 4, 5 are guided by the door rail 3 and the door shoe 6 on the left and right sides, and suspended by a chain 10 while being balanced by a balance weight 11. (not shown) so that it can be electrically opened and closed vertically.

By the way, in such a two-panel top-opening door device,
As shown in FIG. 2, when the automobile 12 accidentally collides with the lower door 4 from the landing side at a speed higher than a certain level, the lower door 4 is deformed in an arch toward the hoistway side due to the impact force, and this deformation causes the lower door The door shoe 6 of No. 4 comes off from the door rail 3 and is only suspended by the chain 10. If the automobile 12 advances further, the lower door 4 will be pushed toward the hoistway, and if the automobile 12 proceeds further, there is a risk that the automobile 12 will fall into the hoistway and cause an accident resulting in injury or death.

[Purpose of the invention]

The present invention has been made in view of this point, and its purpose is to
To provide a safe vertical opening door device for an automobile elevator, which prevents the automobile from falling into the hoistway even if the automobile accidentally collides with the lower door from the landing side.

[Summary of the invention]

In order to achieve this object, the present invention provides a means for preventing guide members such as a door shoe and a door roller of the lower door from coming off the door rail even if the lower door is deformed by a collision of an automobile from the landing side. It is characterized by

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

' Fig. 3 is a front view showing the entrance/exit of a car elevator equipped with a two-panel top-opening door device according to an embodiment of the present invention, and Fig. 4 is an enlarged sectional view taken along the line A-A in Fig. 3. It is. In these figures, the same reference numerals as in FIG. 1 indicate the same or equivalent parts.

This embodiment differs from the conventional example shown in FIG.
6, in addition to the sliding recess 6a that engages with the door rail 3,
A hook portion 6b protruding toward the landing side is integrally formed as a first retaining member, and is attached to the left and right pillars 2 as a second retaining member when the lower door 4 is in the closed position, that is, on the lower side. A hooking metal fitting 13 having claw portions 13ai that engage with the hooking claw portions 6b of the door shoe 6 in opposition to each other with appropriate gaps is fixed by bolts 14.

Therefore, as shown in FIG. 5, even if a car collides with the lower door 4 from the landing side and a load P acts on the lower door 4, thereby deforming the lower door 4 in an arched manner toward the hoistway, the hooking pawl of the door shoe 6 6b engages with the engaging claw portion 13a of the hook 13, and the door sheath 6 does not come off from the door rail 3.

Therefore, it is possible to completely prevent the automobile from falling into the hoistway.

FIG. 6 shows another embodiment of the present invention, and the difference from the embodiment of FIG. 4 is that a door shoe 6 is used as the first retaining member.
A wide portion 6C is integrally formed at the tip of the door rail 3, and a protruding portion 3a is integrally formed on the door rail 3 as a second retaining member, and engages with the inner surface of the wide tip portion 6C on the landing side with an appropriate gap. This means that it is formed in therefore,
Even if a car collides with the lower door 4 from the landing side, the wide end portion 6C of the door shoe 6 is attached to the protruding portion 3a of the door rail 3.
and will not come off from the door rail 3.

Further, in the embodiment shown in FIG. 7, contrary to the embodiment shown in FIG. 6 is integrally formed with a projecting portion 6d that engages with the outer surface of the wide tip portion 3b on the car side with an appropriate gap. Therefore, even if a car collides with the lower door 4 from the hall side, the protruding portion 6d of the door sheath 6 engages with the wide end portion 3b of the door rail 3, and does not come off the door rail 3.

In each of the embodiments shown in FIGS. 6 and 7, there is no need to separately provide a hook, which is advantageous in terms of space.

FIGS. 8 and 9 show still other embodiments of the present invention.

In the embodiment shown in FIG. 8, an engagement recess 42 is formed in the lower part of the lower door 4 as a first retention member, and a position corresponding to the engagement recess 4a in the landing floor 1 is provided as a second retention member. An engaging protrusion 15 is provided on the holder.

In the embodiment shown in FIG. 9, an engagement protrusion 16 is provided at the bottom of the lower door 4 as a first retaining member, and corresponds to the engagement protrusion 16 on the landing floor 1 as a second engagement member. The four retaining portions 1a are formed at the positions.

Therefore, when the lower door 4 is in the closed position, the engaging recess 4a or the engaging protrusion 16 of the lower door 4 is engaged with the engaging protrusion 15 or the engaging recess 1a of the landing floor 1, so that the automobile Even if it collides with the lower door 4, the door door -6 will not come off the door rail 3.

Each of the embodiments shown in FIGS. 8 and 9 has the advantage that the door detachment prevention mechanism consisting of the first and second retaining members can be installed regardless of the structure of the door shoe and door rail.

Figures 10 and 11 show still further embodiments of the invention. In this embodiment, the door rail 3 and the door sliding device 6 are installed avoiding the vicinity of the lower part of the lower door 4 in the closed position, where both left and right sides can be pressed, and the door release prevention mechanism is installed using the vicinity of this lower part. There is. That is, the first
A hook 17 is provided at the lower part of the left and right sides of the lower door 4 as a securing member, and a hook 18 is provided at the lower part of the left and right pillars as a second securing member. Therefore, when the lower door 4 is in the closed position, these hooks 17 and 18 are engaged with each other, so even if a car collides with the lower door 4, the door assembly 6 will not come off the door rail 3. do not have.

In this embodiment, the hook 18 can be mounted on the same central axis as the door rail 3, which is advantageous in terms of space.

In each of the above embodiments, the door shades are provided at two locations above and below on both the left and right sides of the door.
You may also provide one.

Furthermore, the door guide member that engages with the door rail and guides the door is not limited to the door sheath, but may also be a door four-ra or the like.

Furthermore, the present invention is not limited to the two-panel top-opening door device,
The present invention can be similarly applied to a three-panel top-opening door device.

〔Effect of the invention〕

As explained above, according to the present invention, even if a car accidentally collides with the lower door from the landing side and the lower door is thereby deformed, the guide members such as the door sheath and door roller of the lower door will not come off the door rail. Since there is no such thing, it is completely possible to prevent the car from falling into the hoistway, and the safety of this elevator can be greatly improved.

[Brief explanation of the drawing]

Figure 1 is a front view showing the entrance/exit of a car elevator equipped with a conventional two-panel door system that opens from the top.
FIG. 3 is a front view showing a landing entrance of an automobile elevator equipped with a door device according to an embodiment of the present invention; FIG. Figure 5 is an enlarged sectional view taken along the line A-A in Figure 1 before and after the car collides, Figures 6 and 7.
The figure is a cross-sectional plan view showing a door detachment prevention mechanism portion of a door device according to other embodiments of the present invention, and FIGS. 8 and 9 are doors according to still other embodiments of the present invention, respectively. FIGS. 10 and 11 are a front view and a cross-sectional plan view showing a door removal prevention mechanism portion of a door device according to yet another embodiment of the present invention. 1... Landing floor surface, 1a... Engagement recess,
2... Pillar, 3... Door rail, 3a
...Protruding part, 3b...Wide part, 4.
...Lower door, 4a...Engagement recess, 6...
...Door shoe, 6b...Hatch claw part, 6c
...Wide part, 6d...Protrusion part, 13
．． 17.18... Hook fitting, 15.16...
...Hypostatic protrusion. Figure 1 O 7 6-- OIO 9 Figure 2 ゛ Figure 3 8114 Figure 5 8861!1 *7rjA Figure 8
Figure 9-533-81110

Claims (1)

[Claims] 1. A door rail that is attached to left and right pillars, and a door guide member that is attached to both left and right sides of each door and that engages with the door rail, and that opens and closes a plurality of doors vertically. The vertical opening door device for an automobile elevator is characterized by being provided with means for preventing the guide member of the lower door from coming off the door rail when a car collides with the lower door in the closed position from the landing side. Vertical opening door device for automobile elevators. 2. In claim 1, the blocking means:
A first retaining member provided on the lower door side and a second retaining member provided on the landing side.
A vertical opening door device for an automobile elevator, wherein the retaining members are configured to engage with each other at least when the lower door is in the closed position. 3. The vertical opening of an automobile elevator according to claim 2, wherein the door guide member is a door shoe, and the first retaining member is formed integrally with the door shoe. door device. 4. The vertical opening door device for an automobile elevator according to claim 3, wherein the second retaining member is formed integrally with the door rail. 5. Claim 3, characterized in that the second retaining member is attached to the pillar at a position corresponding to the first retaining member of the lower door in the closed position. Vertical opening door device for automobile elevators. 6. In claim 2, the first retaining members are provided at at least two locations above and below on both left and right sides of the lower door, and the second retaining members correspond to these first retaining members. 1. A vertical opening door device for an automobile elevator, characterized in that each door is separately provided. 7. In claim 2, the first retaining member is an engaging recess or an engaging protrusion provided at the bottom of the lower door, and the second retaining member is provided on the landing floor. 1. A vertically opening door device for an automobile elevator, characterized by a locking protrusion or an engaging recess provided therein. 8. In claim 2, the door rail and the door guide member are provided so as to avoid the vicinity of a lower position where both left and right sides of the lower door in the closed position are pressed, and the second retaining member is mounted on a pillar near this lower position. A vertical opening door device for an automobile elevator, characterized in that the first retaining member is attached to a lower position on both left and right sides of a lower door.