JPH07172736A - Construction elevator equipped with loading/unloading device - Google Patents

Abstract

PURPOSE:To provide a construction elevator equipped with a loading/unloading device having a reasonable structure capable of lengthening a distance from a platform to a loading/unloading position by making a self weight reduced without damaging the floor face of the platform of a carrier in an elevator used for both men and cargos. CONSTITUTION:A machine part receiving recessed part 11 is provided on a carrier platform 10 lower than the floor surface thereof by a specified size, a lifting mechanism 15 is set on the bottom part of the machine part receiving recessed part 11, and also a receiving/delivering mechanism 30 expandable from above the carrier platform 10 to the front while being supported by the lifting mechanism 15 and a loading/unloading device 20 composed of guiding means therefor and a driving mechanism 40 are incorporated, therein, the load receiving surface of the load reception supporting part of this loading/unloading device 20 can be kept at the same height as the floor surface of the carrier platform 10 at normal time and lifted up to a height at which this can be expanded from the carrier platform 10 to the front by the lifting mechanism 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to a construction elevator used at a construction site such as a high-rise building, and unloads an object to be conveyed between a carrier of the elevator and a work floor on the side of the building. The present invention relates to a construction elevator equipped with a loading / unloading device that enables efficient and safe operation.

[0002]

2. Description of the Related Art Conventionally, construction elevators used to transport materials to high places at construction sites such as high-rise buildings are used to transport materials loaded on the carrier bed to the target work floor. After being exposed, it is required to facilitate the handling of the load in order to streamline the operation of unloading or loading the load on the work floor of the structure.

As a rationalizing means for loading and unloading materials and the like between the carrier platform and the work floor on the construction side in such a construction elevator, a transfer machine capable of delivering luggage is mounted on the carrier platform. Then, various proposals have already been made for those which are capable of delivering packages by the transfer machine. An example of such a device is Shoukaisho 63-7.
6774, Japanese Patent Application Laid-Open No. 2-75590, Japanese Patent Application Laid-Open No. 3-2887873, Japanese Patent Publication No. 3-57020, Japanese Patent Application Laid-Open No. 5-270770.

[0004]

However, all of the above prior arts have the following problems. First, for example, in the one disclosed in Japanese Utility Model Laid-Open No. 63-76774, a self-propelled carriage having a function of raising and lowering a table is mounted on a loading platform, which seems convenient at first sight. The self-propelled dolly has a large self-weight, and the effective loading load of the carrier must be reduced. Further, in the one disclosed in Japanese Patent Laid-Open No. 3-2887873, a pair of push-out devices capable of expanding and contracting beyond a tread plate are mounted on a loading platform of a carrier at a required interval, and each movable support of both push-out devices is mounted. A work cart for loading luggage, which is mounted on a cargo bed by a connecting beam, is pushed out to the work floor side by the both pushing devices through the beam. Therefore, there is a problem in that the weight of the work carriage is increased by its own weight and a structure for moving the beam forward and backward is installed on the floor surface of the loading platform, so that a passenger's boarding space becomes small.

Further, in the one disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 2-75590, guide roller mechanisms for lateral movement are laid in a plurality of rows in the width direction of the loading platform on the loading platform of the carrier, and each of them is used for lateral movement. The front part of the guide roller mechanism is also attached to a retractable transfer plate that is attached to the front of the loading platform so that when the transport plate is laid down when it is landed, it will be hung from the loading platform on the loading platform to the work floor. Alternatively, the lateral movement guide roller mechanism can be extended and contracted from the loading platform of the carrier to the work floor at the landing position. Therefore, if the guide rollers are arranged over the entire surface, there is a drawback that it becomes difficult for an operator to get on the luggage platform and handle the luggage when loading or unloading the luggage.

Further, the one disclosed in Japanese Patent Publication No. 3-57020 has a construction in which an extruding device having a fork that is extruded by a link function is incorporated on a carrying device, which is a large scale. Although it is a device, the certainty of loading and unloading is recognized, but there is a problem that the self-weight increases and the actual load is greatly reduced. Further, in the one disclosed in JP-A-5-270770, the problems as described above are improved,
A guide rail that is expanded and contracted by a hydraulic cylinder is used to support the loading table and be moved back and forth by another hydraulic cylinder, so it is possible to make it shorter, but a long stroke hydraulic cylinder is required and the landing level is correctly matched. If you do not do it, it will be impossible. Therefore, it is difficult to maintain the landing accuracy for use in a temporary elevator. Moreover, since it is attached to the loading platform in a projecting state, it is inconvenient because the floor surface is blocked when it is not used.

As described above, in each of the above-mentioned systems, when the system is adopted for an elevator for shared use of passengers, when neither of the devices uses the loading / unloading device for loading, when an attempt is made to load personnel on the carrier platform, The loading and unloading device blocks the floor surface, resulting in a small number of people, which is inconvenient.
In addition, it is structurally complicated.

According to the present invention, such a problem is solved, and in an elevator for sharing a person's load, the weight of its own weight can be reduced without damaging the floor surface of the bed of the carrier, and the weight of the bed can be increased. It is an object of the present invention to provide a construction elevator including a loading / unloading device with a rational configuration that can increase the distance from the cargo to the delivery position of the luggage.

[0009]

SUMMARY OF THE INVENTION The present invention, which is configured to achieve the above object, is provided with a machine part receiving recess of a required width which is cut down by a predetermined dimension from the floor surface of a carrier bed of a construction elevator. A lift mechanism is installed at the bottom of the machine portion receiving recess, and a load transfer mechanism supported by the lift mechanism and capable of expanding and contracting from the top of the carrier bed to the outside of the carrier and its guiding means. A loading / unloading device composed of a drive mechanism is incorporated, and this loading / unloading device can keep the load receiving surface of the load receiving / supporting part at a height which is normally aligned with the floor surface of the load carrier, and when loading / unloading the load carrier Is configured to be pushed up by the lift mechanism to a height at which it can be expanded and contracted with respect to the outside of the carrier.

The loading / unloading device according to the present invention comprises: a) a base frame held by the lift mechanism in the machine portion receiving recess; and b) a base frame provided along the horizontal guide means provided on the base frame. The platform frame is provided with a load receiving / supporting portion that can be moved forward and backward by a double speed mechanism driven by a drive mechanism, and the load receiving / supporting portion is provided with a load transferring mechanism including lift means that is lifted to a required height. Is preferred.

Further, the load transfer mechanism is a) supported in horizontal guide means arranged in parallel at a predetermined interval on a base frame held by the lift mechanism in the machine portion receiving recess and its base is supported. A slide frame that can be moved back and forth by a double speed mechanism driven by a drive mechanism mounted on a base frame; and b) a pair of transported object support bases that can be moved in and out from both sides of the base frame by the slide frame in the forward and backward directions. c) A luggage cradle is provided so as to be movable up and down on a traveling platform that constitutes the object support platform, and the traveling platform and the luggage cradle are crossed over the slide frame at the respective base end portions thereof. A pair of supporting frames to be connected and a lifting means capable of raising and lowering the connecting frame to a required height by a linear actuator, wherein the pair of transferred object support bases have the supporting frames on the slide frames. And it is movably coupled, it is preferable is configured to be retractable lifting the carried object on the carried object support table to the appropriate height by the lifting means.

Further, the transported object support bases are connected to each other by a support frame which stands up over the slide frame at the base ends of the traveling bases located on both sides of the base frame. The luggage cradle is supported by a cross link mechanism on the traveling platform so as to be movable up and down, and the base ends of the luggage cradle are guided by the support frame to be connected to each other by an upright coupling frame. It is preferable that the support frame and the connection frame are connected by a linear actuator, and the slide frame and the support frame are movably connected by a follower of a double speed mechanism attached to the slide frame. .

According to the present invention, at least one side portion of the base frame of the loading / unloading device is capable of moving in and out on a work floor side where a load is to be transferred at a position where it does not contact the transported object support base. Level setting means of the loading and unloading device is provided, and the positioning arm is received on the work floor upper surface to set the operating level of the loading and unloading mechanism before the load transferring mechanism of the unloading device is operated. It is preferably configured as follows. Further, a loading / unloading device equipped with a positioning arm that can be moved in and out on the side of the work floor where a load is to be transferred in a shape that does not hinder the operation of the load transfer mechanism, at a position between the guide means in the base frame of the load / unload device. The level setting means is provided, and before the load transfer mechanism of the loading / unloading device is activated, the positioning arm is received on the work floor upper surface and the operation level of the load transfer mechanism can be set. Good.

Further, in the loading / unloading device according to the present invention, the lift mechanism incorporated in the loading platform and the base frame are detachably connected, and the lifting mechanism pushes up to the floor surface of the loading platform to release the connection. By making it possible to remove the equipment by pushing it out of the carrier, the loading / unloading device is configured so that it can be detached, and if the loading / unloading device is not used, it will not be mounted, and the carrying capacity of the carrier will be increased for rational transportation. Can be made possible. In order to configure in this way, it is desirable to attach wheels to the bottom of the base frame so that the operator can easily push the wheels out of the carrier.

[0015]

In the construction elevator of the present invention having the above-described structure, the loading / unloading device is installed in the receiving recess of the machine portion provided in the loading platform of the carrier, and the loading receiving surface is normally the floor of the loading platform. It is kept at the same height, and during loading and unloading between the loading platform and the work floor, the loading and unloading is performed by the lift mechanism provided in the machine receiving recess from the loading platform on the loading platform to the height at which it can expand and contract to the outside of the loading platform. Since the device is configured to be pushed up, the mechanism that operates on the floor surface can be configured to be generally bulky. Since the loading / unloading mechanism of the loading / unloading device is lifted above the floor of the loading platform and pushed out from the carrier to the work floor side, even if cargo is loaded on the loading platform, the cargo of the loading / unloading device is loaded. The carrier can be moved up and down while the load is stabilized by lowering the receiving and supporting part. Further, when the loading / unloading device is not used, the load receiving surface of the load transferring mechanism is brought into a state substantially matching the floor surface of the loading platform, so that it can be used rationally without causing any trouble in loading personnel or bulk cargo.

Further, the loading / unloading device lifts the base frame supporting the whole to a height at which the load receiving / supporting portion of the load transfer mechanism can be pushed forward with respect to the load carrier of the carrier, and then the drive mechanism is lifted. Since it extends and contracts the luggage receiving and supporting section along the horizontal guide rail provided on the base frame, and lift means for lifting the luggage receiving and supporting section to the required height is attached, so that it can be handled like a pallet. It is possible to perform a luggage transfer operation using the tool in a stable state. Further, when the cargo is loaded and moved forward and backward, the upright connecting frame attached to the transported object support is also effective in supporting the back of the loaded cargo. In particular, the load transfer mechanism is configured to be short so that it can be pushed or pulled forward from the inside of the base frame with reference to the base frame, and only the load receiving / supporting part can be moved up and down by the lift means. Therefore, the pallet as described above can be operated and operated without difficulty.

Further, according to the present invention, the base frame of the load transfer mechanism of the loading / unloading device is located at the side of the base frame where it does not come into contact with the object support base which is the load receiving / supporting portion, or the slide frame of the base frame. By providing a positioning arm that can move forward and backward before the load transfer mechanism moves forward and backward at a position between the guide means, and the positioning arm is projected to be received by the work floor upper surface, it can be expanded and contracted projected from the base frame. Therefore, the slide frame of the load transfer mechanism and the object support base can be smoothly operated without being twisted, and the intended purpose can be achieved.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a construction elevator equipped with the loading / unloading device of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of an embodiment of a construction elevator equipped with a loading / unloading device according to the present invention. In this figure, a tower 1, which is an elevating support tower, is provided with a rack 3 on the front surface, and is provided with guide rails 2 and 2 on both side surfaces, so that the structure under construction is supported by a support at a required interval. There is. On the front side surface of the tower 1, there is provided a carrier 5 that is driven up and down by the rotation of a gear that meshes with the rack 3. Reference numeral 4 is a driving machine.

The carrier 5 is provided on the front side surface of the tower 1, and an elevating frame 6 that can be moved up and down by being guided by guide rollers (not shown) on guide rails 2 and 2 attached to the tower 1, and is supported by the elevating frame 6. And a cage 7 which is mounted on the platform 10 in parallel with the surface of the tower 1 on the platform 10 and is mounted on the platform 10.
A load / unload device 20 is installed on the top of the tower 10 so as to be able to move forward and backward in a direction orthogonal to the front side surface of the tower 1.

The platform 10 has a frame structure and is provided with a machine part receiving recess 11 at a required size in the longitudinal center thereof, and a loading / unloading device 20 is incorporated in the machine part receiving recess 11. The machine portion receiving recess 11 is open to the upper surface of the loading platform 10 and is configured to receive and support the loading / unloading device 20 described later by reinforcing the periphery. Also,
A step board 14 that can be pulled up and down is attached to the front edge of the platform 10. A door 8 that can be opened or closed laterally or vertically is provided in front of the cage 7 on the platform 10.
The door 8 can be opened and closed electrically or manually.

Next, the loading / unloading device 20 will be described with reference to FIGS.
As shown in FIG. 4, a fork-shaped support frame 21 supported by a base frame 21 adapted to be received in the machine part receiving recess 11 of the loading platform 10 and a slide frame 31 incorporated in the base frame 21. Transferred object support table 33,
A drive mechanism 4 mounted on the base frame 21 for expanding and contracting the slide frame 31 and the transported object support table 33.
0, and a lift mechanism 15 for moving the load delivery mechanism 30 up and down by a required amount.

The base frame 21 has two guide roller support members 22 horizontally in the upper part in the center of the machine part receiving recess 11 of the loading platform 10 in the axial direction orthogonal to the elevating frame 6 in parallel with a required interval. , 22 are provided, and the upper side between the guide roller supporting members 22, 22 is opened to form a box-type structure. The base frame 21 is supported on its lower surface by a lift mechanism 15 such as a table lifter installed on the bottom surface of the machine part receiving recess 11 of the luggage carrier 10 and is vertically movable. The lift mechanism 15 includes a cargo delivery mechanism 30 whose lift is normally mounted on the base frame 21.
It is designed so that it can be elevated from above so that it does not interfere with being projected onto the work floor B of the structure at the landing position (Fig. 7).
reference). The lift mechanism 15 and the base frame 21
And are detachably connected by a connecting pin or the like (not shown).

The two guide roller supporting members 22, 22 provided on the base frame 21 are provided with a plurality of guide rollers 23 at required intervals on opposite side surfaces of the two guide rollers. Inside the positions of the support members 22 and 22, the side portions are supported by the guide rollers 23 and the loading platform is horizontally mounted.
10 A slide frame 31 that can move forward and backward is provided. The slide frame 31 includes a plurality of guide rollers 23 arranged on the guide roller supporting members 22 and 22 on both outer sides.
It is provided with a guide rail 32 that engages with, and is sized so as to be entirely accommodated in the upper part of the base frame 21 in the most retracted position.

The object support base 33 is the base frame 21.
A support frame that is sized so as to fit on the base frame 21 and is symmetrically arranged outside each of the guide roller support members 22 and 22 of the base frame 21 and stands up so as to straddle the slide frame 31 at the base end. They are connected to each other at 36 and are formed in a fork shape. Then, the transported object support bases 33A (luggage receiving and supporting portions) symmetrically arranged on both outer sides of the base frame 21 travel with the total height being about 90 mm (but not limited to this size). Running platform with wheels on the front and back
34 and a baggage supporting base 35 mounted on the traveling base 34 via a cross-link mechanism 35a. The baggage supporting bases 35 of the transported object supporting base portions 33A are connected by a separate connecting frame 37 which stands upright so as to overlap with the supporting frame 36 at the base end thereof, and the cross link mechanism 35a.
It is possible to move up and down to the required height while maintaining the horizontal state.

Lifting means 38 for raising and lowering each of the transported object support bases 33A connects a base end portion of the traveling frame 34 and a connection frame 37 connected to the base end portions of the luggage supporting bases 35, 35. The hydraulic cylinder 38 is located at the center position in the width direction with the support frame 36 to be connected.
Both are connected at a, and the connecting frame 37 is the supporting frame.
The hydraulic cylinder 38a is guided by a standing portion of 36 and can be moved up and down to a required height. In addition,
The connecting frame 37 also serves as a receiving portion capable of supporting the rear portion of the loads mounted on both the transported object supporting base portions 33A, 33A. In addition, the cross link mechanism 35
One of the two is a, with one on the proximal side, the carriage 34 and the luggage support 35.
Pins are fixed to a part of each and the other is made to be free. And that hydraulic cylinder 38
The hydraulic pump unit 39, which is the drive source of a, is mounted in an appropriate place inside the base frame 21, and its hydraulic cylinder 38a
Connected with.

As shown in FIG. 6, the drive mechanism 40 of the transported object support base 33 includes a drive chain 42 driven by a reduction motor 41 mounted inside the base frame 21, as shown in FIG. Sprockets arranged at both ends in the longitudinal direction of 21 (direction orthogonal to the lifting frame 6 of the loading platform 10)
It is wound between 43 and 44, and the middle of the drive chain 42 is connected to the lower rear end a of the slide frame 31 to move the slide frame 31 forward and backward by driving, and the inside of the slide frame 31. Also, the driven chain 45 is wound between the sprockets 46, 46 provided at both ends in the longitudinal direction, and the lower side of the driven chain 45 is wound on the front side of the base frame 21 and the driven chain 45 is wound. When the slide frame 31 advances by driving the drive chain 42 by attaching the hanging sides to the support frames 36 of the transported object support base 33, the driven chain 45 moves as the slide frame 31 moves.
Is configured so that it can be operated by a double speed mechanism that is configured to move the object support base 33 on the slide frame 31 that is driven and moved at the same time.

The construction elevator equipped with the loading / unloading device 20 constructed as described above allows the loading / unloading mechanism 20 of the loading / unloading device 20 incorporated in the loading platform 10 to be accommodated in the loading platform 10 when the carrier 5 is raised and lowered. To be lifted up and down. Then, the upper surface of the luggage support base 35 of the object support base 33 in the load transfer mechanism 30 is operated in a state of being aligned with the floor surface of the load carrier 10 of the carrier. In this state, a lift mechanism that supports the load transfer mechanism 30 and the base frame 21 that form the loading / unloading device 20 in the machine part receiving recess 11 of the load carrier 10.
15 is lowered. Therefore, since the top surface of the luggage receiving / supporting base 35 of the loading / unloading device 20 is aligned on the floor on the loading platform 10, there is no inconvenience in normal loading.

To operate the loading / unloading device 20, FIG.
And, as shown in FIG. 8, first, the lift mechanism 15 is operated to raise the base frame 21 to the required height position. Next, the tread 14 attached to the front edge of the loading platform 10 is attached to the work floor B.
When it is tilted to the side, the transported object support base 33 can move forward beyond the upper side of the tread plate 14. After that, the deceleration motor 41 of the drive mechanism 40 is activated to drive the drive chain of the drive mechanism 40.
When 42 is operated in the forward direction (see FIG. 5), the drive chain 42 is connected to the rear end portion of the slide frame 31, so that the slide frame 31 moves to the guide roller support members 22, 22 of the base frame 21. It is guided by each guide roller 23 and moves forward. Then, since a part of the driven chain 45 attached to the slide frame 31 is connected to the front side of the base frame 21 and the support frame 36 of the transported object support 33, respectively, the forward movement of the slide frame 31 is followed. Then, the transported object support table 33 is advanced. In other words, the drive mechanism
If the slide frame 31 is moved forward by the double speed mechanism by 40, at the same time, the transported object support base 33 is also advanced on the slide frame 31, and when the slide frame 31 is most advanced, the transported object support base 33 is also slide frame. It is advanced to the tip of 31. The object support base 33 is a support frame.
It is guided by a guide roller 39 which engages with a guide groove provided outside the member of the slide frame 31 at the 36th part. The guide roller 39 has one wheel each on the left and right, and the traveling table 34 is provided with the wheels 34a. Therefore, even if the object support table 33 moves to the work floor B, the guide roller 39 can travel without any trouble.

The loading / unloading device 20 can be moved forward in the above-described manner. For example, in order to unload a load on the work floor B by the loading / unloading device 20 from the loading platform 10 of the carrier 5.
The cargo is loaded on a cargo handling tool (not shown) such as a pallet in advance, and the cargo is loaded on the carrier 5 by a forklift or the like so that it can be lifted by the above-mentioned transported object support stand 33, or the above-mentioned procedure at the loading section. The loaded goods loaded on the material handling equipment 33 projected on the loading platform 10 are loaded on the loading platform 10 by pulling in the driving mechanism 40 of the loading and unloading mechanism 30 by the reverse operation of the forward movement. It In order to ground the pallet or the like on which cargo is loaded by the lift means 38 of the object support base 33, the hydraulic cylinder 38a is operated to raise the connecting frame 37, and the connecting frame 37
The luggage supporting base 35 connected to is lifted while being kept horizontal by the function of the cross link mechanism 35a, and it is possible to lift the cargo loaded (loaded) on the luggage supporting base 35.

Therefore, the cargo is loaded on the carrier bed 10 of the carrier, the carrier 5 is raised to the required level, and the carrier 5 is moved to the level to be handled by the preset landing means of the carrier 5 to move the carrier 5. When stopped, the door 8 is opened, the tread 14 is tilted to the work floor B side, and then the loading / unloading device 20 is operated. When the loading / unloading device 20 is operated, the lift amount of the luggage support base 35 by the lift means 38 of the transported object support base 33 is low within a range that does not hinder the forward movement of the slide frame 31 and the transported object support base 33. It is preferable to move it in order to maintain stability. The amount of movement of the carrier 5 from the loading platform 10 to the work floor B by the loading / unloading device 20 is adjusted to the maximum forward amount or the convenience of a small transport working machine (for example, a small forklift) on the work floor B. It can be decided arbitrarily. The operation of the loading / unloading device 20 can be performed visually by a driver on the carrying device 5. Further, since the object support base 33 in the loading / unloading device 20 has a lower posture by lowering the lift means 38 to the lowermost position by disposing the lifting drive unit (hydraulic cylinder 38a etc.) in the rear portion as described above. , Can be inserted and lifted under standard pallets. Also, the object support base
The baggage support 35 of 33 is a lift means 38 (hydraulic cylinder 38a,
Since it can be lifted and lowered by the cross link mechanism 35a and the connecting frame 37), the object to be transported is scooped up and brought onto the loading platform 10 or the work floor B.
It is also possible to perform operations such as being prepared above and carried out and placed on a board.

In the loading / unloading device 20 of the above-mentioned specific example, in order to stabilize the load of the lift mechanism 15 that holds the base frame 21, when the load delivery mechanism 30 is maintained in a state of performing the load delivery operation for a long time. In addition, a mechanism for temporarily fixing the base frame 21 and an appropriate place of the loading platform 10 by, for example, a pin lock mechanism (not shown) is used as the base frame.
It is preferable to attach it to 21. Also loading and unloading equipment
If you are not using the product with 20 mounted, you should use the object support stand 33
With the upper surface of the luggage receiving base 35 lowered to the floor surface, and by covering the space formed on the upper surface of the slide frame 31 with a floor plate prepared in advance, the entire cargo bed floor can be used safely and effectively.

The above description has been made on the assumption that the floor surface of the loading platform 10 of the carrier 5 is almost flush with the surface of the work floor B of the building, but is permanently installed at the work site under construction. It is often difficult to match the landing, such as the elevator and the finished floor of the building. Therefore, like the above-mentioned loading / unloading device 20, a load transfer mechanism that can expand and contract.
It is preferable to have a mechanism for setting the landing level so that the 30 can operate smoothly.

FIG. 9 shows a specific example of the carrier 5 including the landing level setting mechanism 50 of the loading / unloading device 20.
In this figure, the landing level setting mechanism 50 of the loading / unloading device 20 is supported by a sheath tube 52 on both outer sides of the above-mentioned base frame 21 so as to be able to move forward and backward from the loading platform 10 (on the working floor B). A positioning arm 51 that is operated by the user is provided. The positioning arm 51 is operated by, for example, a hydraulic cylinder 53, and, for example, the base frame 21 is raised to a required height or more by the lift mechanism 15, and then the positioning arm 51 is projected onto the work floor B, and then the lift is performed. The mechanism 15 lowers the positioning arm 51 until it contacts the work floor B. It is preferable that the grounding of the positioning arm 51 be visually detected or detected by a detecting means such as a limit switch (not shown) attached to the grounding portion of the positioning arm 51 in advance so that the next operation can be performed. . By doing so, the landing level of the loading / unloading device 20 is set each time, so that the carrier 5 (base frame 21) between the slide frame 31 and the transported object support base 33 of the load transfer mechanism 30 moves from the work floor to the work floor. The movement to and from B can be smoothly performed.

The landing level setting mechanism 50 of the loading / unloading device 20 is arranged on both sides of the base frame 21, but in addition to this, the landing level setting mechanism 50 can be moved forward and backward at the center of the base frame 21. A floor level positioning arm and its drive means may be provided. In this case, the positioning arm and its driving means must be provided so as not to hinder the forward / backward movement of the transported object support base 33. Therefore, for example, it is preferable that the positioning arm is constructed so that it can be operated in a narrow space by additionally providing a driving means that is lifted from the inside of the base frame 21 and then projected so as to be lowered onto the work floor B. Of course, it is also possible to go straight and set the landing level in the above manner.

With such a format, the driver can visually check
Alternatively, it is possible to set the landing level by an electric detection means and to smoothly operate the loading / unloading device 20.

Further, in each of the above-mentioned embodiments, wheels are attached to the bottom of the base frame 21 of the loading / unloading device 20 at a position where they do not come in contact with the supporting portion of the lift mechanism 15, and the lift mechanism 15 is lifted to the maximum extent. If a height higher than the machine part receiving recess 11 (floor surface) of the loading platform 10 is installed, when the loading / unloading device 20 is not mounted on the transporter 5 and used as a construction elevator, or Loading and unloading equipment 20
When performing maintenance of the above, the lifting mechanism 15 pushes up the loading / unloading device 20 to release the connection between the supporting portion of the lifting mechanism 15 and the base frame 21, and the loading / unloading device 20
20 can be pushed out of the carrier 5 and removed without disassembling. At this time, since the base frame 21 is provided with the wheels as described above, it is easy for the operator to push it out from the top of the loading platform 10 and remove it. Of course, the lift mechanism
It goes without saying that a wheel moving surface is provided on the upper surface of the support portion of 15.

The luggage receiving base 35 in this embodiment corresponds to the luggage receiving portion of the present invention.

[0039]

As described above, according to the present invention, the load transfer mechanism, which has the most bulky drive mechanism incorporated into the inside of the luggage carrier and has the luggage receiving and supporting portion that moves forward and backward from the luggage carrier by the double speed mechanism, is short. It is configured so that it can be stored in the lower part of the loading platform while being stored on the carrier, and during loading and unloading operations, it is lifted to the required height by the lift mechanism in the machine part receiving recess provided in the loading platform and then the luggage receiving and supporting part. The device can be loaded and unloaded in a low posture by moving the device forward and backward, resulting in a highly stable device. Further, regarding the delivery of the load between the carrier and the work floor, the transported load can be correctly moved and delivered. Further, since the load receiving / supporting portion is configured to be able to move up and down by the built-in lift means, it is possible to use the pallet corresponding to a state in which the transfer height is different, such as being received and supported by the plank, and to transfer the object It became possible to carry out loading and unloading reasonably. Of course, since the entire structure can be simplified and made lighter, the weight of the carrier can be reduced and the load on the carrier can be increased.

Further, since the loading / unloading device can be sunk inside the loading platform, the loading surface of the loading platform can have a space. Further, by attaching the landing level setting mechanism, the load transfer mechanism can be operated more smoothly. Furthermore, using a lift mechanism that raises and lowers the loading / unloading device inside the recess of the machine part provided on the loading platform, and pushing the loading / unloading device onto the floor of the loading platform can be easily removed, so maintenance of the loading / unloading device is possible. Alternatively, it becomes easy to remove and operate the carrier.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a specific example of a construction elevator including a loading / unloading device according to the present invention.

FIG. 2 is a plan view illustrating a construction elevator including a loading / unloading device according to the present invention, excluding a cage of a specific example.

FIG. 3 is a side sectional view showing a portion where a loading / unloading device of the carrier is mounted.

FIG. 4 is a plan view showing a part of the loading / unloading device omitted.

5 is a view taken along line VV in FIG.

FIG. 6 is a diagram schematically showing a drive mechanism in the load transfer mechanism of the loading / unloading device.

FIG. 7 is a side view showing an operation mode of the loading / unloading device according to the present invention.

FIG. 8 is a plan view showing an operation mode of the loading / unloading device according to the present invention.

FIG. 9 is a plan view showing a construction elevator including a loading / unloading device according to the present invention, excluding a cage of another specific example.

[Explanation of symbols]

 5 Carrying device 6 Lifting frame 10 Loading platform 11 Machine part receiving recess 15 Lifting mechanism 20 Loading / unloading device 21 Base frame 22 Guide roller supporting member 23 Guide roller 30 Loading and unloading mechanism 31 Slide frame 32 Guide rail 33 Transported object support 34 Running Platform 35 Baggage support 35a Cross-link mechanism 36 Support frame 37 Coupling frame 38 Lifting means 40 Drive mechanism for transported object support 41 Reduction motor 42 Drive chain 45 Driven chain 50 Landing level setting mechanism 51 Positioning arm B Working floor

Claims (7)

[Claims] 1. A carrying platform of a construction elevator is provided with a machine part receiving recess of a required width cut down from the floor surface by a predetermined dimension, and a lift mechanism is installed at the bottom of the machine part receiving recess. , A loading / unloading device, which is supported by the lift mechanism and is configured to extend and contract from above the carrying platform to the outside of the carrying device, and a drive mechanism thereof, is incorporated, and the loading / unloading device normally operates the loading / unloading device. The receiving surface of the receiving and supporting part can be kept at a height that is aligned with the floor surface of the carrier platform, and is configured to be pushed up by the lift mechanism to a height at which it can be expanded and contracted from the carrier platform to the outside of the carrier during delivery. A construction elevator equipped with a characteristic loading / unloading device. 2. The loading / unloading device comprises: a) a base frame held by the lift mechanism in the machine portion receiving recess; and b) a base frame provided along a horizontal guide means provided on the base frame. A luggage receiving / supporting portion capable of advancing and retreating by a double speed mechanism driven by a drive mechanism mounted on the platform frame is provided, and the luggage receiving / supporting portion is provided with a cargo delivery mechanism including a lifting means that is lifted to a required height. A construction elevator including the loading / unloading device according to 1. 3. The load transfer mechanism comprises: a) being supported by horizontal guide means arranged in parallel to the base frame held by the lift mechanism in the machine part receiving recess at required intervals. A slide frame which can be moved forward and backward by a double speed mechanism driven by a drive mechanism mounted on the base frame; and b) a pair of load receiving and supporting portions which can be moved in and out from both sides of the base frame by the slide frame in the forward and backward directions. A transported object support base, and c) a baggage support base that is vertically movable on a pair of traveling bases that form the transferred object support base, and the base end portions of the traveling bases and the base of the baggage support base. A support frame for connecting the end portions to each other across the slide frame and a connecting frame for connecting the base end portions of the luggage receiving bases to each other;
Lift means that can be moved up and down to a required height by a linear actuator, and the object support base is movably connected to the slide frame in the advancing / retracting direction, and the lift means supports the object on the object support base. 3. The structure according to claim 1 or 2, which is constructed so as to be capable of lifting a conveyed object to an appropriate height and moving it back and forth.
A construction elevator equipped with the loading / unloading device described in. 4. The transported object support bases are connected to each other by support frames that stand upright over the slide frames at the base ends of the traveling bases located on both sides of the base frame. The luggage cradle is supported by a cross link mechanism on the traveling platform so as to be movable up and down, and the base ends of the luggage cradle are guided by the support frame to be connected to each other by an upright coupling frame. The support frame and the connection frame are connected by a linear actuator, and the slide frame and the support frame are movably connected by a follower of a double speed mechanism attached to the slide frame. An elevator for construction comprising the loading / unloading device according to any one of 3 to 3. 5. A stacking arm provided with a positioning arm at least on one side of a base frame of the loading / unloading device, the positioning arm being capable of moving in and out of a work floor to which a load is to be transferred at a position not in contact with the transported object support base. A level setting means of the unloading device is provided, and the positioning arm is received on the upper surface of the work floor before the load transferring mechanism of the unloading device is operated, and the operation level of the load transferring mechanism can be set. A construction elevator comprising the loading / unloading device according to any one of claims 1 to 4. 6. A positioning arm is provided at a position between the guide means in a base frame of the loading / unloading device, the positioning arm being capable of moving in and out of a work floor to be transferred in a shape that does not hinder the operation of the load transfer mechanism. A level setting means of the unloading device is provided, and the operation level of the load transferring mechanism can be set when the positioning arm is received on the work floor upper surface before the load transferring mechanism of the unloading device operates. Claim 1
A construction elevator comprising the loading / unloading device according to any one of to 4. 7. The loading / unloading device has a base frame and the lift mechanism detachably connected to each other, and when the lifting mechanism pushes up to a floor surface of a loading platform, the loading / unloading device can push the loading frame out of the carrier and remove it. A construction elevator comprising the loading / unloading device according to claim 1.