JPH053277U - Transport equipment for construction lifts - Google Patents

Abstract

(57) [Summary] [Purpose] A carrier platform device that allows a treadle to be raised and lowered in conjunction with opening and closing of a carrier door in a construction elevator. [Structure] The door 20 arranged on one side of the carrier 11 of the carrier 10 is designed to be lowered below the carrier floor 12, and the base end is pivotally supported inside the door 20 at the edge of the carrier floor 12 side. Being a tread 30
And door guide rails provided on both sides of the loading platform 11.
When the door 20 is moved down along 15, the footboard 30 pivotally attached to the edge of the bed floor is pivotally supported by the arc-shaped guide surface 22a provided on the top member 22 of the door 20 and the vertical member 21. By the roller 25 attached to the front end of the guide lever 23, the footboard 30 leaning against the inside of the door is laid down to the front side when the door is opened, and is erected when the door is closed. [Effect] The tread plate is automatically suspended between the carrier and the work floor in conjunction with the door opening and closing being operated by power.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is a tread that can be automatically tilted in conjunction with the movement of the opening / closing door attached to the carrier platform. The present invention relates to a carrier platform device for a construction elevator equipped with a plank.

[0002]

[Prior art]

  Conventionally used for construction lifts and elevators used at construction sites. The carrier is placed between the carrier bed side and the work floor on the working floor after it is landed on the required floor. It is safe to temporarily cover the gap that has occurred and to load and unload personnel and equipment. The footboard is passed from the carrier side of the elevator to the work floor so that Such a structure is disclosed in, for example, Japanese Utility Model Publication No. 56-29350 and Japanese Utility Model Publication No. 54. It is known from Japanese Patent Publication No. 19026.

[0003]

[Problems to be solved by the device]

  In the prior art described in the above-mentioned Japanese Utility Model Publication No. 56-29350, the cargo bed is When the attached footboard raises the handrail of the carrier bed, it interlocks with this and the cargo bed side To the work floor side, and when the handrail is lowered onto the loading platform, it will follow the outside of the handrail. It is configured to stand up. With such a configuration, the transporter reaches the working floor. Handrails hinder the lifting work of personnel and materials, etc. Since it will be raised to a height that does not come, stand a high support on the side of the loading platform. Since it has a structure to be installed, there is a disadvantage that the weight of the carrier is excessive.

[0004]   Further, in the configuration as disclosed in Japanese Utility Model Publication No. 54-19026, Guy corresponding to a so-called cam for raising and lowering the footboard for each stop floor on the side of the hoistway supporting tower In addition to providing a guide, an automatic return type lever operated by the guide on the carrier of the carrier. It is necessary to attach a bar device, which makes the entire structure complicated and expensive. As a temporary device, maintenance work such as adjustment is required, so it is not effective. I can't.

[0005]   In view of this, the present invention does not complicate the structure of the carrier platform, and the weight is excessive. Automatic operation that can effectively get on and off at the stop floor with a simple configuration. It is an object of the present invention to be able to provide a carrier platform device provided with a tread plate that can be tilted.

[0006]

[Means for Solving the Problems]

  In order to achieve such an object, the present invention provides a carrier platform device for a construction elevator. The door provided on the loading / unloading side of the loading platform can be lowered below the floor of the loading platform. Is attached to the top of the door, and an arc-shaped guide surface is provided. The main part is pivotally supported on the vertical member of the door so that the installed rollers do not descend from the top surface of the door. Multiple guide levers are installed, and the base end is pivoted on the edge of the cargo bed side inside such a door. When the tread plate is worn, the tread plate comes into contact with the inner surface of the door and from the standing state, the guide surface of the top and the guide rail are It is equipped with a bar so that it can be raised and lowered according to the sliding of the door. It is something. The door in the present invention includes the rubbing of the luggage carrier.

[0007]

[Action]

  According to the present invention configured as described above, when the carrier is moved up and down, the base side edge portion is used as a base. The footboard, which is pivotally attached at the end, leans against the inner surface of the door with the tip part in contact. It has become. When the carrier is moved up and down to the stop floor and the door is lowered, the tip of the tread After the edge touches the top of the door and gradually climbs over the top, the guide lever attached to the door The tread plate comes into contact with the roller at the tip, and thereafter the tread plate gradually moves downward by its own weight as the door descends. When the door is turned down and stops descending, a footboard is hung between the work floor and the bed floor. To be done. When the door is pulled up, the footboard is lifted by the opposite operation to the To be When the footboard is tilted, a tension spring is attached to the lower end of the guide lever. If it is fluffy, the tension spring acts as a buffer, and the footboard stands up smoothly during the initial movement. The effect is that it can be operated and can be tilted up and down without impact.

[0008]

【Example】

  An embodiment of a carrier platform device for a construction lift according to the present invention will be described below with reference to the drawings. I will explain one.

[0009]   FIG. 1 is a front view of a specific example of a carrier platform device of the present invention, and FIG. 3 is an enlarged side sectional view of a main part, and FIG. 4 is attached to the bed floor of the carrier. It is a figure showing the relationship with the door of the tread that is done.

[0010]   In these figures, the carrier 10 of the present invention is a tower that is installed upright along a structure. -Suspending vertically along the guide rails 2 provided on one side of the 1 Attached to at least the side edge of the platform 11 opposite to the lifting frame 13 side. The installed door 20 can be opened and closed.

[0011]   Both ends of the door 20 are engaged with door guide rails 15 and 15 which are symmetrically attached to both sides of the platform 11. Combined and kept at a predetermined height from the cargo floor 12 to below the cargo floor 12 when the door is opened. It is provided so that it can move up and down so that it can descend. And this door 20 is Provided at the top and bottom of each guide rail 15 along the id rails 15, 15. It is operated by the drive unit 18 mounted inside the cargo bed 11 around the sheaves 16 and 16 '. It is constructed so that it can be raised and lowered by ropes 17, 17. The drive 18 has left and right A rope drum that allows the ropes 17, 17 that extend to the It has an 18 '.

[0012]   Further, the door 20 has at least both ends or both ends depending on the width of the door opened in the width direction. As shown in FIG. 3, a guide lever is provided on the vertical member 21 provided at a proper position of the central portion and the intermediate portion. 23 are attached, each having an intermediate portion supported by a pin 24. In addition, this guide The lever 23 is arranged diagonally upward, the roller 25 is attached to the tip end, and the lever 25 is attached to the lower end. A tension spring 27 is stretched between the vertical member 21 and the vertical members 21 via pins 26 and 26 ', so that 25 is urged to rise. In addition, the vertical part of the position where this guide lever 23 is attached As shown in the figure, the guide lever 23 does not move downward from the predetermined position on the material 21. The stopper 28 is fixed to the.

[0013]   Further, the top member 22 of the door 20 has an arcuate cross section on the loading platform side as shown in FIG. The guide surface 22a is formed at the time of raising and lowering the footboard 30, which will be described later. The top member 22 and its vicinity are partially cut away from the guide lever 23 attachment portion, The guide lever 23 is operable.

[0014]   The door 20 mounting side edge portion of the carrier floor 12 of the carrier 10 is a guide rail as described above. The footboard 30 has its base end at the base 12 so that the gap T is appropriately formed by 15 and 15. Pivot pins 32 are pivotally attached to the side edges. This footboard 30 is, for example, the same as the carrier 10. Materials such as work floor A (see Fig. 4) installed on each work floor of the building It has the required length so that loading and unloading can be done safely, and that the door 20 is closed. In this state, as shown by the chain line a in FIG. 4, the tip is in contact with the inner vertical member 21 'of the door structure. , It is provided so that it leans back.

[0015]   It should be noted that, on both sides of the lower part of the elevating frame 12, for example, a gripping device 40 having a known structure is provided on the left and right sides. Paired with the guide rail 2 of the tower 1, it is attached so that the carrier 10 Hold the flange part of the guide rail 2 when loading and unloading with it stopped. The carrier 10 can be fixed to the tower 1. In addition, the doors 20A and 20B provided on the left and right in the figure of the carrier 10 may be replaced by the front A footboard 30 can be attached in the same configuration as the front door 20 described above.

[0016]   Next, the operation of the present invention will be described. The carrier 10 is moved up and down to the intended work floor. In order to perform loading and unloading work of materials and the like on the working floor, first, the gripping device 40 at the landing position is used. To fix the carrier 10 to the tower 1. After that, for raising and lowering the door 20 Start the drive 18 and unwind the rope that lifts the door 20 from the rope drum 18 '. Then, the door 20 is lowered along the guide rail.

[0017]   When the door 20 is lowered, the footboard 30 provided on the side edge of the cargo floor 12 is closed by the door 20. Since it leans against the inside of the door, the door 20 is lowered to stand up (see a in Fig. 4). (Shown), the tip of the footboard 30 was pushed forward by its own weight, and the top of the door 20 was guided. The surface 22a receives and guides the lower surface of the tread 30, as shown by b in FIG. . Then, as shown by c in FIG. 4, the projecting from the top end of the door 20 The tip roller 25 of the inner lever 23 comes into contact with the back surface of the tread 30, and the top guide surface 22a of the door 20 Along with the lowering of the door 20, the tip of the footboard 30 receives the footboard 30 along with the load of the carrier 10. As it is moved to the lower side of the base 12 surface, as shown in FIG. The 30 contacts the work floor A and is laid over the gap between the carrier 10 and the work floor A.

[0018]   When the door 20 is lowered to the lowest position in this way, the front surface of the carrier 10 is fully opened. Since the tread plate 30 straddles the space between the work floor A and the bed floor 12, It's bulky because it's safe and easy to move, and there is nothing on the top of the bed. Even goods can be easily received and paid. Of course, the carrier 10 is as described above. In addition, since it is fixed to the tower 1 by the gripping device 40, it is placed on the bed 12 of the carrier 10. Even if you bring in heavy items or unload them from the floor 12 to reduce the load significantly. Do not move vertically while stopped, and work in a safe state. You can

[0019]   When the loading and unloading work is completed, the drive unit 18 must be This allows the rope drum 18 'to be reversed and the ropes 17 and 17 to be wound up. By doing so, the door 20 is guided by the door guide rails 15 and 15 and is raised, and this is raised. By the top guide surface 22a of the door 20, the operation of the footboard 30 in the lying state is reversed. Is rotated upwards to scoop up the tip of the footboard 35, and the door is closed. Then, it stands up along the inside of the door 20. After the door is closed in this way, the gripping device 40 The carrier 10 can be moved up and down by releasing the fixing to the tower 1 by. Note that When opening and closing the doors 20A or 20B on both the left and right sides of the carrier 10, using the above-mentioned door 20 It can be opened and closed in the same manner as. The footboard 30 thus erected is Since it stands up along the inside of the lower part of the door 20, if, for example, personnel are on board, Helps prevent the risk of accidentally sticking your foot in the gap created between the door and luggage carrier. stand. Also, use the guide lever 23 with the roller 25 to raise and lower the footboard 30 at the top end of the door 20. The tension spring is attached to the lower end of this guide lever 23. This helps to reduce the frictional force during movement and cushioning at the start of tilting.

[0020]

[Effect of device]

  According to the present invention, when the carrier moves to the intended work floor and the door is opened and closed, If the door is opened and closed vertically using, the footboard attached to the bed of the carrier will be powered separately. It automatically falls and stands up according to the opening and closing of this door without requiring And it is possible to work safely. Also, are the treads held inside the door? In addition, it can also serve as a protective body for the door by the mounted object.

[Brief description of drawings]

FIG. 1 is a front view of a specific example of a carrier platform device of 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 showing a relationship with a door of a tread attached to a bed floor of a carrier.

[Explanation of symbols] 1 tower 2 Guide rail 10 carrier 11 cargo bed 12 cargo floor 13 Lifting frame 15 Door guide rail 16,16 'sheave 17 Rope for raising and lowering the door 18 Drive 18 'rope drum 20 doors 21 Door vertical member 22 Door top member 22a Guide surface when the footboard is tilted 23 Guide lever 24 Pin that pivotally supports the guide lever 25 roller 26,26 'pin 27 Tension spring 28 stopper 30 treads 32 Pivot pin of tread A work floor

Claims (2)

[Scope of utility model registration request] 1. A carrier platform device for a construction elevator,
The door attached to the loading and unloading operation side of the loading platform is attached so as to be able to descend below the floor surface of the loading platform, has an arc-shaped guide surface at the top of the door, and a roller with a tip is attached to the upper part of the door. A plurality of guide levers are provided so that the trunk is pivotally supported by the vertical member of the door so that it does not descend from the top surface of the door, and the base end is pivotally attached to the edge of the cargo bed side inside such a door and the tread plate. Is provided so as to be in contact with the inner surface of the door and to be erected from the standing state in accordance with the sliding of the door by the guide surface and the guide lever of the top portion. 2. The guide lever is pivotally supported at an intermediate portion thereof by a vertical member of a door, and a tension spring for urging upward rotation of a roller is provided at a rear end of the lever between the guide lever and the vertical member. The carrier platform device for a construction elevator according to claim 1, which is attached.