JP2530834Y2 - Equipment for loading and unloading elevators for construction - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier bed device for a construction elevator, which is provided with a step plate which can be automatically raised and lowered in conjunction with movement of an opening / closing door attached to the carrier bed.

[0002]

2. Description of the Related Art Conventionally, a lift in a construction site, such as a lift, an elevator, or the like, which is used at a construction site, is placed on a required floor, and is then moved between a carrier bed side and a work floor on the work floor. The stepping plate is passed from the transporter side of the elevator to the work floor so as to temporarily cover the generated gap and safely carry on and off personnel and load and unload equipment and the like.
Such a structure is described in, for example, Japanese Utility Model Publication No. 56-293.
No. 50 and Japanese Utility Model Publication No. 54-19026.

[0003]

[Problem to be solved by the present invention]
In the prior art described in Japanese Patent No. 9350, when a tread plate attached to a carrier raises a handrail of a carrier, the handrail falls from the carrier side to the work floor side in conjunction with this, and the handrail descends on the carrier. Then, it is configured to stand up along the outside of the handrail. In such a configuration, when the transporter reaches the work floor and performs lifting work of personnel and materials,
The handrail will be raised to a height that does not hinder the lifting and lowering work of personnel and materials, so the structure will be such that tall columns will be erected on the side of the loading platform, and the weight of the carrier will be excessive There are drawbacks.

In the configuration disclosed in Japanese Utility Model Publication No. 54-19026, a guide corresponding to a so-called cam for raising and lowering a tread plate is provided at each stop floor on the support tower side of the hoistway, and a transporter is provided. It is necessary to attach an automatic return type lever device operated by the guide to the loading platform, which not only makes the entire structure complicated and expensive,
As a temporary device requires maintenance work such as adjustment, it is not effective.

In view of the above, according to the present invention, it is possible to automatically get on and off at a stop floor safely with a simple structure without complicating the structure of the carrier bed and preventing the weight from becoming excessive. An object of the present invention is to provide a carrier bed device having a tread plate.

[0006]

According to the present invention, a door provided on a loading / unloading operation side of a loading and unloading operation of a loading and unloading device for a construction elevator is provided below the loading floor. The door is provided with an arcuate guide surface at the top of the door, and at the upper key point, the roller provided with the tip does not descend below the door top surface, and the main part is formed as a vertical member of the door. A plurality of pivoted guide levers are provided, and the base end is pivotally attached to the cargo bed side edge inside such a door, and the tread plate is in contact with the inner side surface of the door and from the standing state to the guide surface of the top portion. It is characterized in that the guide lever is provided so that the guide lever can be turned upside down in accordance with the sliding of the door. In addition,
The door in the present invention includes the rubbing of the carrier.

[0007]

According to the present invention constructed as described above, when the transporter is moved up and down, the tread plate having the base end pivotally attached to the loading side edge portion is brought into contact with the inner side surface of the door at the tip end portion. It is leaning. When the transporter is raised and lowered to reach the stop floor and the door is lowered, the tip of the tread plate contacts the top of the door and after gradually climbing over the top, the tread plate contacts the roller at the tip of the guide lever attached to the door, Thereafter, the tread plate is gradually turned downward by its own weight as the door descends, and when the door stops descending, the tread plate is hung between the working floor and the bed floor. When the door is lifted, the tread is lifted and raised in the reverse operation. If the tension plate is provided with a tension spring at the lower end of the guide lever at the time of raising and lowering, the cushioning action works by the action force of the tension spring, and it is operated without difficulty at the time of the first movement of the rising of the step plate. The effect that operation can be performed is obtained.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a construction carrier apparatus according to the present invention.

FIG. 1 is a front view of a specific example of the carrier bed apparatus of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is an enlarged side sectional view of a main part. FIG. 4 is a diagram showing a relationship with a door of a tread plate attached to the bed of the carrier.

[0010] In these figures, the carrier 10 of the present invention comprises:
It is suspended vertically along a guide rail 2 provided on one side of a tower 1 supported and erected along a building, and can be lifted and lowered by a hanging cable 5. The door 20 attached to the side edge of the side can be opened and closed.

Both ends of the door 20 are engaged with door guide rails 15, 15 provided symmetrically on both sides of the loading platform 11, and the loading floor 12 is engaged.
It is provided so as to be able to move up and down so that it can be lowered from the fixed position maintained at a predetermined height to the cargo bed floor 12 or lower when the door is opened.
The door 20 is mounted inside the carrier 11 around sheaves 16, 16 ′ provided at the top and bottom ends of the guide rails 15 along the door guide rails 15, 15. It is configured to be lifted and lowered by ropes 17, 17 operated by 18. The drive unit 18 is provided with a rope drum 18 'capable of simultaneously winding and unwinding ropes 17, 17 extending left and right.

As shown in FIG. 3, the door 20 is provided with a guide lever 23 at at least both ends, or at both ends and an appropriate part of the intermediate portion, in the width direction according to the opening width. However, each is provided with its intermediate portion supported by pins 24. Further, the guide lever 23 is disposed obliquely upward, a roller 25 is attached to a tip end portion thereof, and a tension spring 27 is stretched between the lower end portion and the vertical member 21 via pins 26 and 26 '. The roller 25 is always urged in the rising direction. A stopper 28 is fixed to the vertical member 21 at the position where the guide lever 23 is provided so that the guide lever 23 is not displaced downward from a predetermined position as shown in the figure.

Further, as shown in FIG. 3, the top member 22 of the door 20 is formed in an arc-shaped cross section on the loading platform side, and serves as a guide surface 22a when the stepping plate 30 described later is raised and lowered. . The top member 22 and its vicinity are partially cut away from the portion provided with the guide lever 23 so that the guide lever 23 can be operated.

The edge of the loading floor 12 of the transporter 10 on the side where the door 20 is attached is formed such that a gap T is appropriately formed by the guide rails 15 and 15 as described above. It is pivotally mounted on the rim by a pivot pin 32. The tread plate 30 has a required length so that the loading and unloading of materials and the like between the transporter 10 and, for example, the work floor A (see FIG. 4) provided at each work floor of the building can be performed safely. In a state where the door 20 is closed, as shown by a chain line a in FIG. 4, the tip is in contact with the inner vertical member 21 'of the door structure and is provided so as to lean back.

On both sides of the lower part of the lifting frame 12, for example, a pair of right and left gripping devices 40 of a known structure are attached so as to be orthogonal to the guide rails 2 of the tower 1.
When loading and unloading work with the 10 stopped, the flange of the guide rail 2 can be gripped and the transporter 10 can be fixed to the tower 1. Also, the doors 20A and 20B provided on the left and right of the transporter 10 in the drawing can be provided with a tread plate 30 in the same configuration as the front door 20 if necessary.

Next, the operation of the present invention will be described. In order to move the transporter 10 up and down to a target work floor and to perform loading and unloading of materials and the like on the work floor, first, the gripping device 40 must be moved to the landing position. When activated, the transporter 10 is fixed to the tower 1. Thereafter, when the drive unit 18 for lifting and lowering the door 20 is activated and the rope that lifts the door 20 is pulled out from the rope drum 18 ', the door 20 is lowered along the guide rail.

When the door 20 is lowered, the tread plate 30 provided on the side edge of the loading floor 12 leans inside the door 20, so that the door 20 is lowered to stand up (FIG. 4). (shown by a), the tip of the tread plate 30 is tilted forward by its own weight, and the top guide surface 22a of the door 20 receives and guides the lower surface of the tread plate 30 as shown by b in FIG.
Next, as shown by c in FIG. 4, the front end roller 25 of the guide lever 23 protruding from the top end of the door 20 comes into contact with the back surface of the tread plate 30, and supports the tread plate 30 together with the top guide surface 22a of the door 20. Then, in response to the lowering of the door 20, the tip of the tread plate 30 is moved below the bed surface 12 of the transporter 10, so that the tread plate 30 is moved to the work floor A as shown in FIG. In contact therewith, it is laid over the gap between the transporter 10 and the work floor A.

In the state where the door 20 is lowered to the lowest position in this way, the front surface of the transporter 10 is fully opened and the tread plate 30 straddles the space between the work floor A and the bed floor 12, so that both It is safe and easy to move between them, and since there is nothing on the upper side of the loading platform, even bulky articles can be easily picked up and received. Of course, as described above, since the transporter 10 is fixed to the tower 1 by the gripping device 40, even if a heavy article is brought into the loading platform 12 of the transporter 10, or if it is lowered from the loading platform 12, the load is greatly reduced. Also, it is possible to perform the operation in a safe state without moving vertically in the stopped state.

After the loading / unloading operation is completed, to move to the next position, the driving device 18 is operated in reverse,
The door 20 is guided by the door guide rails 15, 15 and rises by reversing the rope drum 18 'to wind the ropes 17, 17, and the door 20 is raised and lowered by the top guide surface 22a of the raised door 20. The stepping plate 30 in the state is rotated upward by the reverse operation to the above, the tip of the stepping plate 35 is scooped up, and when the door is closed, it stands up along the inside of the door 20. After the door is closed in this way, if the fixing of the gripping device 40 to the tower 1 is released, the transporter 10 can be moved up and down. The door 20A or the door 20 on both sides of the transporter 10
When opening and closing B, it can be opened and closed in the same manner as in the case of the door 20 described above. Since the step board 30 thus erected is erected along the lower inside of the door 20,
For example, when a person is on board, it is helpful to prevent a risk that a foot is accidentally inserted into a gap generated between the door and the carrier. Rolling of the tread plate 30 up and down at the top end of the door 20
Although operated by the guide lever 23 with 25, the tension spring is attached to the lower end of the guide lever 23, so that the cushioning at the time of starting to fall and the frictional force during the movement can be reduced. Useful.

[0020]

According to the present invention, when the carrier is moved to the target work floor and the door is opened and closed, if the door is opened and closed using power, the carrier can be attached to the carrier floor. The tread plate does not require any additional power, and is automatically lowered and erected in response to opening and closing of the door, so that work can be performed simply and safely. In addition, since the tread is held inside the door, it can also serve as a door protector by the load.

[Brief description of the drawings]

FIG. 1 is a front view of a specific example of a carrier bed device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged side sectional view of a main part.

FIG. 4 is a diagram illustrating a relationship with a door of a tread plate attached to a bed of a carrier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tower 2 Guide rail 10 Carrier 11 Luggage carrier 12 Luggage carrier floor 13 Elevating frame 15 Door guide rail 16, 16 'Sheave 17 Rope for ascending and descending door 18 Drive 18' Rope drum 20 Door 21 Vertical member of door 22 Top member of door 22a Guide surface when the tread plate is raised and lowered 23 Guide lever 24 Pin for pivotally supporting the guide lever 25 Roller 26, 26 'pin 27 Tension spring 28 Stopper 30 Tread plate 32 Tread plate pivot support pin A Work floor

Claims (2)

(57) [Scope of request for utility model registration] Claims: 1. A carrier bed device for a construction elevator,
A door provided on the loading / unloading operation side of the loading platform is provided so as to be able to descend below the loading platform floor surface, has an arc-shaped guide surface at the top of the door, and a roller provided with a tip at an upper important point. A plurality of guide levers whose pivots are pivotally supported by the vertical member of the door so as not to descend from the door top surface are arranged, and the base end is pivotally attached to the cargo bed side edge inside such a door and the tread plate Is provided in such a manner that it can be turned upside down by the guide surface and the guide lever of the top portion from the standing state in contact with the inner side surface of the door in accordance with the sliding of the door. 2. The guide lever is pivotally supported at an intermediate portion by a vertical member of a door, and has a tension spring provided between the vertical member and the rear end of the lever. A carrier bed device for a construction elevator according to claim 1, which is attached.