JP2569652Y2 - Door equipment related to construction lifting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the transfer of a transported object or a transported object on the side of a building during a loading / unloading operation of the transported equipment between a lift and a transporter of a lift for lifting and lowering the equipment at a construction site. The present invention relates to a door device related to a construction elevating device provided corresponding to a mouth.

[0002]

2. Description of the Related Art Conventionally, elevators which are used for transporting equipment at construction sites are equipped with a loading / unloading section provided on a building side for safely transporting equipment and personnel. A door device is provided on each of the transporter and the building. In addition, these door devices usually employ a horizontal opening type or a vertical opening type door.

A door device attached to a carrier of such an elevator for construction or a door device of a hoistway arranged on the side of a structure is a horizontal opening type, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. 3-4927.
Folding type as known from Japanese Patent No. 9
It is a general horizontal sliding door type. On the other hand, as a vertical opening type, there is known a method of opening the entire door body by pulling up the whole from a fixed position as disclosed in Japanese Utility Model Publication No. 56-29350, or Japanese Utility Model Application Laid-Open No. 4-119776. There is a method in which a door body is divided into two upper and lower parts and is simultaneously opened and closed in a vertical direction.

[0004]

However, in the above-mentioned door device, the horizontal opening fold type requires a space in consideration of a thickness dimension substantially equivalent to the width of the plurality of door pieces to be folded. Usually, it is installed at a position facing the hoistway on the side of the building where there is sufficient installation space.
In addition, in the case of the horizontal sliding door type, a space equivalent to a so-called door pocket into which the door is pulled must be attached, and thus there is a disadvantage that the door cannot be effectively used in the width direction at the installation location. The vertical opening type is effective for these horizontal opening type door devices because the door installation width can be used effectively.For example, when the door is opened only upward, the door is moved upward by the height of the door. The need to provide a tall door guide post. Therefore, installation on the building side is often inconvenient in relation to the upper floor. In addition, a door device that is opened and closed by being divided into upper and lower parts is effective because the installation space can be reduced as compared with the above-mentioned type, but it is expensive because it requires a driving means that is divided into upper and lower parts and is interlocked. Is limited to the door device. Either way, there are many problems.

The present invention solves such a problem,
It can be opened and closed if there is a minimum door lifting space in the height direction, and it can be installed on the transporter or the building side by selecting the moving direction according to the installation location, and combining multiple door plates with easy door operation It is an object of the present invention to provide a door device related to a vertical opening / closing construction lifting device.

[0006]

In order to achieve the above object, the present invention comprises a pair of guide rails erected at a required interval, and a nested combination of the guide rails on both sides. A plurality of door plates each having a guide roller guided by the guide plate, and one end of the plurality of door plates is connected to the most advanced door plate in the closing direction in the closing direction, and the guide rail or an upper portion of a column having the guide rail. A door hanging rope operated by a winder around an attached guide sheave, wherein each of the plurality of door plates has a connecting portion from a door plate moved to an uppermost position to a door plate positioned at a lowermost position. At the end position in the vertical direction, an engaging portion for interlocking each door plate at the time of opening and closing the door is provided so that the mounting position is sequentially shifted so as not to interfere at the time of opening and closing. Door plate tip member It is characterized in that the stopper for receiving the end portion.

In the present invention, it is preferable that each of the guide rollers for raising and lowering each of the door plates is provided so as to be relatively fitted with and guided by the guide rail. The door hanging rope connecting portion of the door plate includes a locking claw piece pivotally supported by a bracket and having a locking claw on the front side and connected to the door hanging rope, and a locking claw. A spring that is connected to the rear side of the one piece and urges the locking claw in a direction of engaging the locking claw with an opposing guide rail or a support, and when the door suspension rope breaks, It is preferable to provide a fall prevention mechanism configured so that the locking claw of the locking claw piece engages with the opposing guide rail or column by the stopping action force to prevent the door plate from falling.

[0008]

According to the present invention (claim 1) configured as described above, when the door is closed, the doors are sequentially moved in the vertical direction by the engaging portions provided at the ends of the combined door plates, and the door is opened. Close the section. When the door is opened, the hoist is operated to drive the door suspension rope in the door opening direction, and as the door panel connected to the door suspension rope moves, each door panel moves sequentially, After the door plate is received by the stopper, the relative relationship between the upper and lower engaging portions of each door plate is displaced by the amount of the movement of the other door plates, so that one of the upper and lower frame members in the door opening direction is sequentially moved. The doors are received almost at the height of the door plate, folded low and open. Therefore, when this door device is attached to the transporter, if the door holding portion corresponding to the height dimension in the folded state is provided below the floor, it can be conveniently configured without taking up an installation space. Also, the guide rollers attached to the door plate are shifted vertically in the order of the nesting combination for each door plate so that they are guided in contact with the guide rails arranged on the left and right. Therefore, even if the door is folded as a combination of many door plates, it can be smoothly guided without interfering with each other and can be folded low. Further, by incorporating a fall prevention mechanism in the door hanging rope connecting portion of the door plate, even in the event that the door hanging rope breaks during the opening and closing operation of the door with a simple configuration, immediately, The locking claw of the locking claw is instantaneously engaged with the guide surface or the pillar by the locking action force constantly actuated to the locking claw by the spring and the weight of the door to drop securely. And prevent accidents before they occur, ensuring safety.

The guide rollers attached to each of the plurality of door plates constituting the door are configured to be guided in a state of being fitted relatively to the left and right guide rails, thereby preventing the door from tilting and guiding. The parts are simplified. In addition, by installing a fall prevention mechanism at the connection between the hanging rope for raising and lowering the door and the door plate, the door plate can be used even if the hanging rope might break. The locking claw is locked by the engagement of the guide rail or the support and the danger of falling can be prevented, so that it is safe.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a door device related to the construction lifting device of the present invention will be described with reference to the drawings of one specific example. Fig. 1 is a front view of the door device of the present invention installed on a carrier of a construction elevator, Fig. 2 is an enlarged plan sectional view of a main part, and Fig. 3 is a part taken along line III-III in Fig. 2. A part is represented by a cross section in an omitted enlarged side view. 4 is an overall schematic diagram showing only the door device of the present invention, and FIG. 5 is a diagram showing a fall prevention mechanism.

As shown in these figures, a door device 10 is provided with columns 11, 11 erected on both sides of a front portion of a carrier 1 of an elevator.
11, a pair of guide rails 12 provided opposite each other along each side surface, and a plurality of door plates 21 guided by these guide rails 12 and vertically moved up and down (specific examples are 4
And a hanging mechanism 30 that movably suspends the door plates 21A, 21B, 21C, 21D along the guide rails 12, 12. Have been. In the transporter 1 shown in FIG. 1, the door device 10 is provided on two front and rear surfaces.

The guide rails 12, 12 have at least the door 20 in addition to the height of the door 20, which is formed by opening a plurality of door plates 21A, 21B, 21C, 21D vertically along the columns 11, 11. Board 21A,
21B, 21C, 21D The height is slightly higher than the height of one sheet, and a part of the front edge of the transporter 1 is suspended downward from the floor. As the guide rails 12 and 12, members having an L-shaped cross section are used, and one end edge protruding to the side is a guide portion. A stopper 1 is provided at the lower end of the guide rails 12 or 12 or at the lower side of the transporter 1 for receiving the lower end of the door plate 21D.
6, 16 are provided.

The door 20 is assembled such that a plurality of door plates 21A, 21B, 21C, 21D are sequentially superimposed in the front-rear direction from the uppermost one to the lowermost one so as to be movable. . In this specific example, four door plates 21A, 21B,
Each of the door plates 21A, 21B, 21C, and 21D has almost the same height, and the width in the width direction is the lowest (outer) from the uppermost (inner) door plate 21A. The width is gradually increased up to the plate 21D (see FIG. 2).

Each of the door plates 21A, 21B, 21C and 21D has a rectangular main body formed with a frame, for example, a punching metal or the like is attached to the front surface, and the door plates 21A (uppermost door plate) located inside on both sides. The side frame members 22 having an L-shaped cross section are sequentially spaced so as not to contact the outer door plates 21B, 21C, 21D.
a, 22b, 22c, 22d are arranged, and these side frame members 22a, 22b, 22
c, 22d, the door plates 21A, 21B,
The roller support pieces 23 are provided symmetrically left and right with the position shifted for each of 21C and 21D. Guide rollers 27 each having a guide groove 27 'are rotatably mounted on each of the roller support pieces 23, and each of the guide rollers 27 attached to all the door plates 21A, 21B, 21C, 21D has its own guide groove 27. 'The parts are positioned so that they coincide on the same guide line. The side frame members 22a, 22b, 22c and 22d are not shown in FIG.
As shown by the notches 22b ', 22c', of the required dimensions from the upper side in the superposition direction so as not to interfere when superimposed
22d 'is provided.

An upper frame member of each of the door plates 21A, 21B, 21C, 21D.
As shown in FIG. 3, 23a, 23b, 23c, 23d and lower frame members 24a, 24b, 24c, 24d are, for example, upper frame members 23a, 23b, 23c,
23d is an angle material in which only the first door plate 21A (the innermost one) is directed inward (the carrier floor side),
The door panels 21B, 21C, and 21D of the third and fourth panels are mounted with their flanges facing outward. The upper frame members 23b, 23c, 23d of the second, third, and fourth door plates 21B, 21C, 21D are partially protruded inward, and the engagement pieces 25 are shifted in the width direction. They are installed without interfering with each other.
In addition, the lower frame members 24a, 24b, 24 of each door plate 21A, 21B, 21C, 21D.
c and 24d are angle materials, all of which are installed facing inward. Except for the lowest door plate 21D (fourth door plate), each of the door plates 21A, 21B, 21C has the upper frame members 23a, 23b, 23C.
Abutment pieces 26 are fixed to the surface corresponding to the engagement pieces 25 attached to c, respectively. Therefore, each said door plate
The engagement pieces 25 and the abutment pieces 26 of 21A, 21B, and 21C are interlocked only when the corresponding engagement piece 25 and the abutment piece 26 come into contact with each other only when the door 20 is closed.

Next, as shown in FIG. 4, the suspending mechanism 30 guides the hoist 32, the suspending ropes 31 operated by the hoist 32, and the suspending ropes 31, 31. Guide sheaves 33, 33 and 34, 34 are provided. The suspension ropes 31, 31 are wound around the drum of the hoisting machine 32 so as to be able to be fed out equally on both sides, and the ends thereof are respectively connected to the guide rails 12, 12 by the guide sheaves 33, 34 and 33, 34. First door plate 21 around the top
A is connected to the upper end face of A. Drop-prevention mechanisms 40 are symmetrically provided at the suspension positions on the upper surfaces of both ends of the upper frame member 23a of the first door plate 21A which is suspended so as to be able to move up and down. As shown in FIG. 5, the fall prevention mechanism 40 includes a bifurcated bracket 41 on both upper surfaces of the upper frame member 23a.
A locking claw piece 42 is provided on the upper inside of the bracket 41 by pivotally supporting the main body with a pin 43, and a locking claw 42 is provided at a base end 42 'of the locking claw piece 42. One end of the hanging rope 31 is connected, and a coil spring 47 is stretched between a pin 48 planted laterally near a connection portion with the hanging rope 31 and a mounting pin 46 planted below the bracket 41. In this configuration, the locking claw 45 formed at the front half of the locking claw piece 42 at the front half of the pivot portion is urged to rotate upward.

The door device 10 according to the present embodiment thus configured is
Is mounted on the carrier 1 such that the door plates 21A, 21B, 21C, 21D are all located outside the front end of the floor of the carrier 1, and the door 20 is opened downward.

In the door device 10, the innermost first door plate 21A which is superimposed in the closed state is the uppermost position, and the second, third, and fourth door plates 21B which are successively located outside in this order. ,
21C and 21D are suspended as follows. The second door plate 21 is attached to the abutment piece 26 provided at the lower portion of the first door plate 21A.
An engagement piece 25 provided on the upper part of the second door plate 21B is suspended by abutting engagement. Then, a contact piece 26 provided on the lower part of the second door plate 21B is attached to the upper part of the third door plate 21C. An engaging piece 25 provided is abuttedly engaged and suspended, and a contact piece 26 provided at a lower portion of the third door plate 21C is provided with an engaging piece provided at an upper portion of the fourth door plate 21D. The mating piece 25 is suspended by abutting engagement, and the front surface of the transporter 1 is closed. The first door plate 21A is held in a closed state because the suspension ropes 31, 31 are wound by the operation of the hoisting machine 32. Also, the guide rollers 27 attached to the door plates 21A, 21B, 21C, 21D are guided by engaging the guide grooves 27 'with the guide rails 12, 12, so that they can be kept stable even when being hit by wind. Can be.

In order to open the door, the hoisting machine 32 mounted on the upper part of the transporter 1 is driven to pull out the suspension ropes 31 and 31 at the same time. First, the uppermost door plate 21A (first door plate) is lowered. Therefore, the doors 20 are simultaneously lowered. And the fourth door plate 21D
The lower end thereof is brought into contact with a stopper 16 provided at the lower end of the guide rails 12 and 12 to stop descending. Then, the third door plate 21C removes the hanging load of the fourth door plate 21D acting on the engagement of the abutment piece 26 and the engagement piece 25 of the fourth door plate 21D, and the third door plate 21C remains intact. The third door plate 21 can be lowered.
The lower end of C is received by the lower frame member 24d of the fourth door plate 21D, and the lowering is stopped. Thereafter, similarly, the second and first door plates 21B and 21A are sequentially stopped at their lower ends first.
It is lowered until it comes into contact with the upper surface of the lower frame member 24c (24b) of 21C (21B), and is fully opened by lowering the first door plate 21A to the position where it stops. When the door 20 is fully opened, a limit switch (not shown) is provided at an appropriate position on the transporter 1 so that the drive of the winder 32 is automatically stopped.

The closing operation is the reverse of the above-described opening operation. When the first door plate 21A is lifted by the operation of the lifting mechanism 32 of the suspension mechanism 30 in the closing direction, the door plate 21A is lifted. An engaging piece 25 provided on an upper portion of the next second door plate 21B is engaged with a contact piece 26 provided on a lower portion of the second door plate 21B.
21B will be raised. Each of the following door plates 21B, 21C, 21
D is sequentially raised by engaging the engagement pieces 25 provided on the upper portions of the third and fourth door plates 21C and 21D which follow the abutment pieces 26 provided on the lower portion of the preceding door plate. The door can be closed.

If the suspension ropes 31, 31 are broken during the opening / closing operation of the door 20 or in the closed state, the suspension ropes 31, 31 and the first door plate may be broken. At the connecting portion with 21A, fall prevention mechanisms 40, 40 are provided, so that the locking claw pieces 42 of the fall prevention mechanism 40 whose base ends have been lifted by the hanging ropes 31 in the normal state.
However, the coil spring 47 urges the locking action force by the disappearance of the lifting force by the suspension rope 31, and rotates upward with the pin 43 as a fulcrum to lock the guide rails 12, 12 or the pillar 11. The pawls 45 engage and abut the door 20
The self-weight acts on the locking claw 45 so that the locking claw 45 is more strongly engaged with the contact surface, so that the falling can be quickly prevented. As described above, in the door device 10 of the present embodiment, the fall prevention mechanism 40 is provided by using the connection portion between the suspension ropes 31 and 31 of the suspension mechanism 30 that suspends the door 20 and the first door plate 21A. As a result, security is reasonably secured.

Although the above description has been given of the embodiment attached to the elevator carrier 1, the door device 10 of the present invention can be installed on the work floor for receiving and clearing the building from the elevator facing the hoistway. In this case, one end of the hanging rope 31, 31 is connected to the lowermost door plate 21D, and the guide rail 12,
The hoisting machine 32 is mounted by connecting 12 or the upper portions of the struts 11, 11 or the hoisting machine 32 is arranged at the floor or lower part, and the hoisting machine 32 drives the door 20 upward by the hanging ropes 31, 31. If it is raised and lowered so that it opens, it is effective to reduce the installation space.

Although the door device 10 of the present invention has been described in the above description as an embodiment in which it is opened downward when it is provided in the transporter 1, it can be opened upward.
Also, when provided on the building side, the door can be opened downward if necessary. Further, the engagement piece 25 and the abutment piece 26 in the present embodiment correspond to the engagement portion of the present invention.

[0024]

[Effects of the Invention] As described above, the door device of the present invention is opened and closed in a vertical direction with a simple structure, and can be accommodated in a small space when the door is opened. It is useful as it does not take up space as a door device on the work floor and is easy to handle.

[Brief description of the drawings]

FIG. 1 is a front view of a door device of the present invention installed on a carrier of a construction elevator.

FIG. 2 is an enlarged plan sectional view of a main part.

FIG. 3 is an enlarged side view, partly omitted in a III-III view of FIG. 2, partially shown in section;

FIG. 4 is an overall schematic diagram showing only the door device of the present invention.

FIG. 5 is a view showing a fall prevention mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator carrying device 10 Door device 11 Support 12 Guide rail 16 Stopper 20 Door 21A, 21B, 21C, 21D Door plate 22a, 22b, 22c, 22d Side frame member of door plate 23a, 23b, 23c, 23d Upper frame of door plate Members 24a, 24b, 24c, 24d Lower frame member of door plate 25 Engagement piece 26 Abutment piece 27 Guide roller 30 Hanging mechanism 31 Hanging rope 32 Hanging rope winder 40 Fall prevention mechanism 41 Bracket 42 Locking claw Piece 43 pin 45 locking claw

Claims (2)

(57) [Scope of request for utility model registration] 1. A pair of guide rails provided upright at predetermined intervals, a plurality of door panels having respectively a guide roller which is guided by the guide rails on both sides are combined telescopically, before Symbol plurality operated by hoist machine before being coupled at one end to the most advanced door plate closing direction outs Idoreru or the top of the strut provided with the moth <br/> Idoreru speculating the attached guide sheaves of the door panels Bei the door hanging rope
In the plurality of door plates , each door plate is interlocked when opening and closing the door at an end position in the vertical direction of each connecting portion from the door plate moved to the uppermost portion to the door plate located at the lowermost position. Joint is open
The work is characterized in that the mounting position is sequentially shifted so as not to interfere at the time of closing, and a stopper is provided at the end of the guide rail to receive the end of the tip member of the most advanced door plate when the door is opened. Door device related to the lifting device. 2. A door hanging rope connecting portion of the door plate,
The fulcrum is pivotally supported by the bracket, and the locking claw is
A locking claw piece which is provided and is connected to the door hanging rope,
A guide connected to the rear side of the locking claw and facing the locking claw
Energizes locking force in the direction of engagement with rail or support
When the door suspension rope breaks,
The locking claw of the locking claw piece is operated by the locking action force of the spring.
Of the door plate
Includes a fall prevention mechanism configured to prevent falling
For construction lifting device associated door device according to claim 1 that is.