JP2860758B2 - Outer door device of construction elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer door device which is provided mainly for getting on and off personnel and equipment from outside with respect to a carrier of a construction elevator used at a construction site.

[0002]

2. Description of the Related Art In the case of construction elevators (lifts and elevators) which are conventionally installed at construction sites and used to transport personnel and materials to high places, personnel are required to carry the elevators. An enclosure is provided at the place where the passenger gets on and off, and a door is attached to the entrance of the enclosure. The door of the entrance is required to be able to be installed in a small space because of the installation location and to maintain safety.
For this reason, an external door device generally provided at the entrance is provided with a side-opening folding door. A laterally-opening folding door is known, for example, from Japanese Utility Model Laid-Open Publication No. 3-9376.

As known from the above-mentioned publication, in the case of a folding door, generally, as shown in FIG. 8, a guide rail 31 provided on a cross beam portion 30 has an opening slit 32 on a lower surface as shown in FIG. Each folding door plate is attached and suspended between a plurality of supporting rods 35 whose upper ends are connected to and suspended from guide members 33 ′ provided with guide rollers 33 ′ that are movable in the guide rails 31. Are guided and supported movably along the guide rail 31.

[0004]

In a conventional folding door in an outer door device of a construction elevator, since the structure for suspending and supporting a plurality of door plates is as described above, the opening and closing of the door is performed. When the door is closed at a time or at a high place, a mechanism is required to prevent the entire door from swinging due to the wind. For this purpose, an auxiliary guide rail must be provided or the rigidity of the entire door must be increased. In addition, since this outer door device is a temporary object, it is required that the outer door device has a structure that can be easily disassembled and removed when used. And at the time of disassembly, the building is completed,
It is required that it be easily dismantled and can be transported by hand. Therefore, these requirements must be satisfied, and there are many problems in the conventional one.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a door supporting means which has a simple structure, is easy to handle and is stable, and has a construction which can be easily disassembled and assembled. It is an object to provide an outer door device of a lift.

In order to achieve the above object, the outer door device of the construction elevator according to the present invention is provided with a beam provided with a guide portion for opening and closing the door at the top of a pair of columns installed at required intervals on the left and right. An outer door device comprising a door supporting frame formed in a connected gate shape and a folding door suspended from the beam of the door supporting frame to open and close the two columns, wherein the beam is A plurality of door plates formed in a frame structure on the same vertical surface with at least two horizontal members arranged in parallel at appropriate intervals in the upper and lower directions, and a pair of the folding doors; A plurality of hanging support rods to be attached are disposed on a pair of members arranged so as to sandwich the beam formed in the frame structure from the front and rear, and are detachably supported on the upper portions of these members and are mounted on the upper horizontal member of the beam configuration. An upper support roller that abuts and supports A pair of front and rear guide rollers that are supported on the longitudinal axis at the lower part of the member and abut against the lower horizontal member of the beam configuration from the side are disposed on the upper part, and a freely movable guide support part is disposed at the upper part. It consists of a hanging rod,
The side portion of the door plate is hingedly connected to the rod of the hanging support rod, and the folding door has an opening / closing connection link that intersects on the side opposite to the folding side at each intermediate position of the door plate. It is characterized by being provided in connection with the lowering support rod.

[0007] In the present invention, in the beam, two pipes are arranged in parallel on a same plane passing through the center thereof at a required interval in the vertical direction, and the two pipes have a size within the outer diameter of these pipes. coupled integrally intermediate at mutually ties, its with these pipe material is to serve as a guide rail of the guide support of the suspended supporting rod, the top of each strut ties at both ends It is preferable that the bracket is detachably bolted to a bracket provided on the bracket.

Further, in the present invention, the door plate of the folding door is framed to a required dimension around a frame member having a hollow rectangular cross section, and both longitudinal ends of a plate member surrounded by the frame member are bent. Into the flat T-shaped groove formed on the side surface of the frame member, and are assembled integrally. In the door plate interconnecting portion as a pair, the door plate is formed on the step provided on the frame member. Symmetrically arranged connecting grooves with a circular cross section, and two round bars are connected to the connecting grooves almost in parallel over the entire length by a web. Preferably, it is configured to be engaged and folded in a certain direction.

[0009]

According to the present invention constructed as described above, the horizontal member composed of the upper and lower two pipe members in which the beams in the door supporting frame formed in the shape of a gate are arranged on the same vertical surface is used as it is for the folding door. It can be used as a guide rail, and the guide support of the suspension support rod of the folding door that is guided and suspended by this beam,
An upper support roller, which is supported by a pair of members arranged so as to sandwich the beam of the flat structure from the front and rear, abuts on the upper side of the upper member of the beam to be suspended and supported, and a pair of front and rear members provided below the pair of members. The guide roller is abutted from both sides on the side of the lower horizontal member of the beam, and the roller is moved and guided by applying the roller to the upper and lower points at three points, so the height of the beam is appropriate By setting to, a simple structure can be achieved and it can be stably supported while being endured by the wind.
In addition, the opening and closing operation of each door plate can be performed easily and lightly with the guide support portion correctly guided.

Further, the beams of the door supporting frame formed in a gate shape are integrally connected at required intervals using two pipe members as horizontal members, and these horizontal members are used as guide rails as they are at both ends. The structure in which the column is assembled by fastening with the bracket of the column and the bolt facilitates the disassembly and assembly operation, and the handling as a temporary object becomes convenient. In addition, the folding joint on the door plate of the folding door is fitted over the entire length with a joint piece to make it easier to manufacture, more rigid, more lightweight, and easier to transport to high places. become.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an outer door device for a construction elevator according to the present invention will be described with reference to the drawings.

FIG. 1 is an overall view of an outer door device of a construction elevator according to the present invention. In this figure, the outer door device 1
A door support frame 2 having a required opening width and having a required opening width and standing upright on a hoistway of a construction elevator (not shown), and a left and right support column 3 of the door support frame 2 are provided. And a folding door 10 which can be freely opened and closed in the horizontal direction.

As shown in FIGS. 1 to 4, the door support frame 2 is provided with a pair of columns 3 and 3 standing upright at an interval corresponding to a required opening width. part of its
The beams 5 are mounted so as to be supported respectively. This beam 5
The two of the tube by upper and lower parallel arranged at required intervals, connecting the two zigzag welded to the diagonal member 5c (ties) are formed integrally, connected by a tether 6,6 at both ends forked bracket portion is provided at the top of the strut 3,3 4,4
It is configured to be integrally assembled by fitting it inside and fastening it with bolts 7 from the side. Incidentally, the beam 5 is to be divided into two by providing a joint portion 6A for fastening the connecting plate piece 6 ', 6' and a bolt 6 "with fitting the horizontal members 5a, tubing is 5b in the central position (If the opening width is narrow, the dividing structure can be omitted.)

As shown in FIGS. 1 and 4 to 7, the folding door 10 has a plurality of suspensions guided by upper and lower horizontal members 5a and 5b of the beam 5 of the door support frame 2 as guide rails. Plural sets (eight in this specific example) of support rods 11 (nine in this specific example) and two pairs of strip-shaped door plates 14 supported by the hanging support rods 11 and attached in an openable and closable manner. And is constituted by.

The suspended supporting rods 11, as shown in Figure 5, the upper end portion of the rod 11a formed on the lip grooved shape, the beam
It becomes the guide support part 12 for hanging and moving on 5.
Part support roller 12d and two guide rollers 12f, 12f
Hanging pieces 13 are attached. This hanging piece 13
The support members 12a, 12a formed into two elongated grooves are provided to extend upward from the seat plate 12b so as to sandwich the beam 5 from the front and rear , and project downward from the seat plate 12b. A single rod connecting portion 12c is provided.
The upper end of the suspension support rod 11 is engaged with the bolt
(Not shown). And this hanging piece
The guide support portion 12 provided on the support member 13 is provided on support members 12a, 12a.
At the end, the upper horizontal member 5a of the beam 5 is contacted from above.
The upper supporting roller 12d is attached with the supporting pin 12e.
And a vertical axis below the support member 12a
Is omitted, but it is attached rotatably on the support pin)
Guide rollers 12f, 12f are attached to lower horizontal member 5b of beam 5.
By being brought into contact with each of the outer sides, it is suspended from the beam 5 and can be moved laterally.

As shown in FIG. 6 and FIG. 7, the door plate 14 has vertical members 15, 15 'having a rectangular cross section made of an extruded aluminum material and horizontal members 15a, 15b (upper frame,
The lower frame) is joined with rivets at the joints, framed in a frame shape, and punched metal plates are inserted into flat T-shaped grooves 17 provided on the opposite side surfaces of the left and right vertical members 15 ', 15'
The bent longitudinal side portions 16 'of the plate member 16 as described above are fitted and integrally formed. Such a door plate 14 is connected as a set of two pieces so that the vertical members 15, 15 to be joined can be folded over substantially the entire length by a joint piece 18.

As shown in FIG. 7, the folding joint portion 14A of the door plate 14 forms a step portion 15a over the entire length at a position inside when one side portion to be joined is folded, as shown in FIG. A joint groove 18 having a connecting groove 15b having a circular cross section and having a cross section formed by integrally connecting two round rods by a web, and connecting the round bar portion to the connecting groove 15b. The two vertical members 15, 15 are connected together. Therefore, the pitch of the two circular cross sections of the joint piece 18 is the same as that of the vertical member of the door plate 14.
The circular grooves are connected to the connecting grooves 15b so that the circular cross-sections fit in the connecting grooves 15b in a state where the parts 15 and 15 are adjacent to each other. Then, the web portion of the joint piece 18 is accommodated in the step 15a. The folding joint 14A can be opened and closed within a range of approximately 90 degrees. Each of these parts is made of an aluminum material and is made lightweight.

The door plate 14 has been made in this way is connected by a hinge 19, 19 at upper and lower positions with respect to said hanger support rod 11, the folding of the required width and multiple articulated as shown in Figure 1 The door 10 is configured. Each hanging support rod 11 is located on the side opposite to the folding side of the door
More mutually coupled, it is adapted to interlock when opening and closing the connecting link 20 that intersect at. The connecting link 20 has an upper fulcrum pin 21 fixed to each hanging support rod 11, and a lower connecting pin 22 has a roller movable within the hanging supporting rod 11.
23 (or a sliding piece) is attached and has the function of supporting it movably. Further, the outermost hanging further outward in the support rod 11 auxiliary lever 11A is mounted respectively (the lower supporting rod 11 suspended between the auxiliary rods 11A may be integrally formed), an intermediate position in which the auxiliary rod 11A A lock 25 (see FIG. 3) is attached to the support 3, and a locking means 26 is provided between the support 3 and the support 3.
In addition, a lock device (not shown) is provided in conjunction with the landing of the carrier of the elevator to prevent the door from being opened except at the time of getting on and off. It is preferable that the lock device be provided with an unlocking operation performed by an electromagnet.

The outer door device 1 of the present invention configured as described above.
Is fixedly installed at the entrance to each elevator on the work floor facing the hoistway of the construction elevator.
As described above, the door support frame 2 is connected to both ends of the beam 5 in the forked brackets 4 and 4 at the tops of the two columns 3 and 3.
It is easily assembled by bolting fitted respectively connected portion in wood 6,6. Then, the folding door 10 hangs the guide support portion 12 of the required number of the hanging support rods 11 on the beam 5, and the upper support roller 12d and the guide roller
12f, the upper and lower transverse members 5a of the beam 5 to 12f, are lateral movement freely by causing contact to 5b. In addition, those hanging support rods
In order to hang the 11 guide supports 12 on the beam 5, remove the upper support rollers 12 d above the respective guide supports 12, and
The upper support members 12a, 12a of 13 are placed on the beam 5 from below, and the upper support members 12a, 12a are placed on top of the upper support members 12a, 12a.
By mounting the parts supporting roller 12d by the support pins 12e, the upper support roller 12d can be suspended to simplify the lowering supporting rod 11 suspended by those <br/> against the upper transverse member 5a of the beam 5. After the required number of suspension support rods 11 are suspended in this way, the door plates 14 are connected to the door plate support portions (hinges) of the suspension support rods 11 respectively, and the door plates 14 are opposite to the mounting side of the door plates 14. Linked to each suspension support rod 11 at the middle part on the side
20 is attached as described above, and each door plate of the folding door 10
By associating the opening and closing operations of 14, the entire assembly is completed.

To open and close the folding door 10, one of the auxiliary rods 11A of the folding door 10 assembled as described above according to the situation of the work site is closed by closing the locking means for the corresponding column 3 and suspending the other. Open the locking means on the lower support rod 11 side and pull
25 and move it in the door opening direction.
The upper guide roller 12d is supported by the upper horizontal member 5a of the beam 5 to be suspended and guided, and the guide rollers 12f, 12f are guided by the lower horizontal member 5b of the beam 5.
The door is opened without swinging back and forth. At this time, the suspension support rods 11 are connected by the connection link 20 at the intermediate position of the folding door 10, and the movement of the suspension support rod 11 is transmitted.
As the doors are reached, each door plate 14 that is sequentially pushed is folded, and the doorway is opened. Also, if the operation is performed in the opposite direction, the door is closed.
In the closed state, each suspension support rod 11 is supported by the beam 5 in a stable state as described above,
Since they are connected to each other at the intermediate portion of the attachment portion of the door plate 14 by the connection link 20, the overall rigidity is enhanced, and a stable state can be maintained even when a gust or the like is received.

In the above specific example, the outer door device of the construction elevator has been described. However, the outer door device of the present invention can be manually transported in a small state by disassembling each part as described above. Since it can be assembled without using a lifting device such as a hoist, it can be easily installed and used as a door device such as an entrance to a construction site or a garage.

[0022]

As described above, according to the present invention, the folding door support structure has a simple structure, has stability, and can be handled lightly. In addition, since the door support frame and the folding door can be disassembled into minimum units and are easily assembled, it is convenient to handle at the time of installation and removal, and is useful as a temporary or long-term device. I can.

[Brief description of the drawings]

FIG. 1 is an overall front view of an outer door device of a construction elevator according to the present invention.

FIG. 2 is a partially omitted plan view taken along the line II-II in FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIGS. 4A and 4B are diagrams showing an attachment portion between a column and a beam and a connection portion of a divided beam in a door support frame, wherein FIG. 4A is a partially omitted front view as viewed from the front, and FIG. a) in a)
FIG.

5A and 5B are enlarged detailed views of a hanging support portion of the folding door, wherein FIG. 5A is a front view and FIG. 5B is a view as viewed from the left side of FIG.

FIG. 6 is a front view of a door plate portion of the folding door.

FIG. 7 is a diagram showing an enlarged cross section taken along line VI-VI in FIG. 5;

FIG. 8 is a view showing a guide structure of a support portion of a folding door in a conventional outer door device.

[Explanation of symbols]

2 Door support frame 3 Support 4 Bracket 5 Beam 5a Upper horizontal member 5b Lower horizontal member 6 Connecting material 10 Folding door 11 Hanging support rod 12 Guide support portions 12c, 12f Guide roller 12d Upper support roller 13 Hanging piece 14 Door plate 14A Door folding joints 15, 15 'Vertical member (shape material) 15a Step 15b Connecting groove 16 Punching metal plate (plate member) 16' Longitudinal both sides of punching metal plate 17 Flat T-shaped groove provided on vertical member 18 Joint piece 20 Connecting link 25 Puller 26 Locking means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-284590 (JP, A) JP-A-3-9376 (JP, U) JP-A-2-98198 (JP, U) JP-A-60- 77698 (JP, U) Real opening 58-33698 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 13/00-13/30 E05D 1/04 E06B 3/72 E06B 11/00

Claims (2)

(57) [Claims] 1. A pair of columns installed at required intervals on the left and right
Is connected to the upper part by a beam with a door
Door support frame formed, and the door support frame
Folding door suspended from a beam to open and close the two columns
A constructed outside door device and said beam is small is arranged in parallel at appropriate intervals in the vertical
The same elevation with a horizontal member consisting of at least two pipes as the main material
A plurality of door plates, which are formed in a frame structure above and are a pair of the folding doors, are attached.
A plurality of suspension support rods are provided in front of the beam formed in the frame structure.
A pair of members arranged to be sandwiched from behind, and these portions
Removably supported at the top of the timber, next to the top of the beam configuration
An upper support roller that abuts on the member and supports the suspension;
The lower part of the member is supported on the vertical axis and the lower part of the beam
A pair of front and rear guide rollers that contact the member from the side
A guide support that can run freely is arranged at the top, and the guide support
It is composed of a rod hanging down from the holding part, and the hanging support
The side of the door plate is hingedly connected to the rod of the rod, and the folding door intersects on the side opposite to the folding side.
Attach the connecting link for closing at the middle of the door
An outer door device for a construction elevator, wherein the outer door device is connected and arranged . 2. The beam is provided with two pipes arranged in parallel on a same plane passing through the center thereof at a required interval in a vertical direction, and has a dimension which fits within the outer diameter dimension of these pipes, and is provided between the two pipes. A bracket which is integrally connected to each other by a connecting member so that the tube members also serve as guide rails of the guide supporting portion of the hanging support rod, and the connecting members at both ends are provided at the top of each of the columns. The outer door device for a construction elevator according to claim 1, wherein the outer door device is configured to be detachably bolted to the construction elevator.