JPH0633881U - Transporters for construction lifts - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a structure that simplifies the structure, improves safety, and enhances durability when forming an extended bed floor on a bed of a carrier of a construction lift. [Structure] In a transporter for a construction lift, which includes extension carrier frames 20 on both left and right sides of a main frame 11 of the carrier, the extension carrier frame 20 is a side surface of a plurality of support members 13, 13a arranged in the lateral direction of the main frame 11. A plurality of lateral members 21a and 21b that are movable along each of the lateral members are fixed to the outer frame member 22 at the outer ends and are framed in a comb-teeth shape and arranged symmetrically in a pair. The inner ends of the horizontal members 21a of the main frame 11 are bolted to the positioning fixing seats 16 provided on the corresponding support members 13 of the main frame 11, and the lower surfaces of the inner ends of the horizontal members 21b at other intermediate positions. A holding seat piece 25 slidably engaged with and held on the lower surface of the corresponding support member 13a of the main frame 11 and also serving as a stopper is attached to the support member arranged in the lateral direction of the main frame 11.
13, 13a and the upper ends of the lateral members 21a, 21b of the respective expanded luggage frames 20 are aligned at substantially the same height,
The floor plate 45 is spread between the pad plates 23 provided on the outer frame member 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a carrier for a construction lift, and more particularly to a carrier for a construction lift having a structure capable of easily expanding a cargo bed floor of the carrier.

[0002]

[Prior art]

 Construction lifts for small transportation of equipment used at construction sites are constructed by compactly packing the carrier bed so that they can be effectively used in places where the installation space is small. Therefore, it is required that the cargo floor area can be expanded and used for transporting bulky equipment without replacing the carrier according to the situation of the construction site. In order to increase the overall floor space of the cargo, there is an extended cargo floor that extends from the basic cargo floor of the carrier to the left and right of the cargo platform placed in front of the lifting frame. Such a structure is known from, for example, Japanese Utility Model Publication No. 62-2223.

In the above-mentioned prior art, the loading platform is mainly provided with a support member composed of a plurality of square pipes crossing over two main beam members projectingly arranged at a lower front portion of an elevating frame. The frame is composed of frames, and the floor plate is stretched over this main frame to form the cargo floor. An expanded cargo bed that can be expanded to the left and right of such a cargo bed is formed into a frame by connecting a lateral member that slidably fits to the support member to the outer frame material at the outer end, and expand and contract by moving this frame in and out. It is provided so that it can be done. The expanded cargo bed is pulled out from the main cargo bed to the left and right, and the expanded cargo bed is formed by laying floor plates on the lateral members.

[0004]

[Problems to be solved by the device]

 In such a conventional technology, a structure in which a plurality of lateral members of an expanded cargo bed frame constituting the expanded cargo floor are fitted into and out of a support member composed of a plurality of square pipes which constitute the main frame of the cargo bed Therefore, the following problems occur. First, since construction lifts are often installed and used outdoors, rainwater penetrates into the fitting structure, causing corrosion, and expanding even if the fitting structure is painted. When the loading frame is taken in and out, the coated surface is easily rubbed and peeled off, and it is difficult to repair the coating inside the square pipe, which is the supporting member. Corrosion from the peeled part of the coating may lower the strength of the member. In addition, since the support member of the main frame and the expanded luggage frame require a large amount of space at the fitting portion with the horizontal member, when the extended cargo frame is pulled out, the tip of the expanded cargo frame is lowered. When a floorboard is laid on this extended cargo bed frame, a step is formed between the floor and the main cargo bed floor. Therefore, there is a risk of workers tripping when loading and unloading equipment on the platform.

The present invention solves the above-mentioned problems and simplifies the structure to improve the safety and enhances the durability when forming the expanded cargo floor. An object is to provide a carrier for a lift.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention relates to a transporter for a construction lift, which comprises extension carrier frames on both left and right sides of a main frame of a carrier horizontally projectingly arranged at a lower front part of an elevating frame. The frame is composed of a plurality of lateral members movable along the side surfaces of a plurality of supporting members arranged in the lateral direction of the main frame and fixed to the outer frame member at the outer ends thereof to form a comb-shaped frame. The inner ends of the transverse members, which are symmetrically arranged and are located at both ends in the front-rear direction of the transverse member, can be bolted to the positioning fixing seats provided on the corresponding supporting members of the main frame. On the lower surface of the inner end portion of the lateral member at the intermediate position, there is attached a holding seat piece that is slidably engaged with the lower surface of the corresponding supporting member of the main frame and also functions as a stopper, and is arranged in the lateral direction of the main frame. On each of the supporting members and the lateral members of each of the expanded luggage frames It is characterized in that the ends are aligned at substantially the same height, and the floor plates are spread between the pad plates provided on the outer frame members of the two expanded luggage frames.

[0007]

[Action]

 According to the present invention having such a configuration, all of the lateral members constituting the extended cargo frame of the carrier of the carrier are moved along the side surface of the supporting member of the main frame, and the supporting member of the main frame is also moved. The horizontal members of the cargo frame are open structures that are held on the main frame by the holding seats attached to the horizontal members and the fixing operation of bolts from the support member side of the main frame. Can be performed in a stable state. Therefore, durability can be enhanced without structurally collecting rainwater or the like and causing corrosion. In addition, since the upper ends of the support members of the main frame and the lateral members of the extended luggage frame can be aligned, even if the extended luggage frame is overhanging, there is no step on the floor board laid on it, which is safe. It

[0008]

【Example】

 Next, a carrier in the construction lift of the present invention will be described with reference to the drawings of one embodiment. FIG. 1 is a side view of a concrete example of a construction lift equipped with a carrier of the present invention, and FIG. 2 is a front view showing a state in which a carrier of the carrier of FIG. FIG. 3 is a plan view showing the framework structure of the luggage carrier part, showing a state in which the extended luggage carrier frame on one side is pulled out. Fig. 4 is an enlarged detail view showing the corners of the main frame. (A) shows the plane and (b) shows the cross section as seen from line BB in (a) with the direction changed by 90 °. FIG. 5A and 5B are enlarged detail views of a portion A in FIG. 3, in which FIG. 5A is a plan view and FIG. 5B is a view seen from the right side of FIG.

In these drawings, the carrier 1 is mounted by a well-known driving means so as to be able to move up and down along guide rails 2 ′, 2 ′ of a support body 2 along a side surface of a structure such as a scaffolding frame. An elevating frame 5 is attached to the drail 2 ′ via guide rollers 3 and 4 so as to be able to elevate and lower, and a loading platform 10 attached to a lower front portion of the elevating frame 5. In this embodiment, the carrier 1 is moved up and down by a meshing gear drive of a rack 6 attached to the front surface of the support 2 and a pinion (not shown) driven by a driver 7 attached to the elevating frame 5.

The loading platform 10 mounted on the lower front portion of the elevating frame 5 has two main beam members 12 horizontally projecting from the lower portion of the elevating frame 5 and an upper surface of the main beam member 12. Further, a main frame 11 is formed by combining a plurality of supporting members 13 and 13a arranged in parallel with the front surface of the elevating frame 5. On the front edge of the main frame 11, there is provided a handrail frame 19 in which a frame body in the upper half part is made detachable and a side plate in the lower half part is formed so as to be able to rise and fall. Then, a wooden floor board 45 is spread over the upper surface of the main frame 11 to form a cargo floor. Expansion cargo beds 10a and 10b are attached to the left and right sides of the cargo bed 10 thus constructed so as to be able to project. Reference numeral 14 is a reinforcing member having an inverted T-shaped cross section.

Since the extension cargo beds 10a and 10b are formed symmetrically, one of them will be described for convenience. The extension carrier frame 20 constituting the extension carrier 10a has a length equal to or less than half the width direction of the main frame 11 (the same direction as the width of the elevating frame 5) and the same number of lateral members 21a as the support members 13 and 13a. 21b and an outer frame member 22 that integrally connects the outer ends of these lateral members 21a and 21b. The lateral members 21a and 21b are slidably arranged along the side surfaces of the support members 13 and 13a of the main frame 11, respectively. The support members 13 and 13a of the main frame 11 are made of angle members (not particularly limited to this shape), and the lateral members 21 arranged along the side surfaces of the support members 13 and 13a. As a and 21b, for example, as shown in FIGS. 4 and 5, angle-shaped members with lips 21a 'and 21b' are adopted, and the heights thereof are almost the same as those of the supporting members 13 and 13a. .

As shown in FIG. 4 (b), the lateral members 21a and 21b of the extended carrier frame 20 arranged at both ends of the lateral members 21a and 21b arranged in a comb shape with respect to the outer frame member 22 are, as shown in FIG. The end portion is attached to the outer frame member 22 (see FIG. 3) with the lip 21a 'side facing down, and the back surface is along the support member 13 outside the main frame 11, and the lower side of the support member 13 The lower surface of the lip 21a 'of the lateral member 21a is supported by the auxiliary supporting member 15 integrally attached to the movably supported member. Further, the lateral member 21a is such that the tip end 18 'of the bolt 18 screwed into the screw hole 17 of the fixed fixing seat 16 attached to the auxiliary support member 15 on the main frame 11 side engages with the upper side of the lip 21a'. The horizontal member 21a can be prevented from floating during the movement, and can be fixed by the bolt 18 in a state where the expansion carrier frame 20 is projected from the end of the main frame 11 of the required size.

Further, as shown in FIG. 5, the plurality of lateral members 21b located in the middle portion are attached to the outer frame member 22 (see FIG. 3) at their ends with the lips 21b ′ facing upward, and are attached to the main frame. A back surface of the support member 13a of 11 is provided, and a rectangular holding seat piece 25 is bolted to the lower surface of the end portion on the free end side, with its longitudinal axis intersecting the axis of the lateral member 21b. Then, one end of the holding seat piece 25 comes into contact with the lower end edge of the support member 13a of the main frame 11 and is prevented from being caught and lifted during movement, like the lateral member 21a. In addition, the holding seat piece 25 is provided so as to be non-rotatably provided with a projecting side portion 25 ′ which engages with the lower end edge of the lateral member 21b, and when the extension carrier frame 20 is pulled out to the maximum extent, It also serves as a stopper that comes into contact with the beam member 12 and prevents it from coming off.

Further, in the above-mentioned expanded luggage frame 20, a backing plate 23 is provided along the upper edge of the outer frame member 22, and the backing plate 23 is in a state in which the extended luggage frame 20 is housed in the main frame 11. Then, it plays a role of surrounding the side portion of the floor board 45 on the main loading platform. Of course, this backing plate 23 receives the side portion of the floor plate 45 laid in the expanded portion when the expanded load carrier frame 20 is pulled out and the load carrier is expanded. Further, on the upper surface of the outer frame member 22, there is provided a handrail frame 28 which has the same structure as the handrail frame 19 standing on the main frame 11 and which can be erected by a known means. As in the conventional case, short columns 30 and 35 having guide grooves 31 and 36 for fitting the enclosing plate are attached to the upper surface corners of the outer frame member 22 of the main frame 11 and the expanded cargo frame 20. Therefore, when the expansion carrier frame 20 is expanded, the enclosure plate 40 is provided between the main frames 11 and the expansion carrier frames 20 between the supports 30 and 35, and the guides of the supports 30 and 35 are provided. It can be fitted along the grooves 31 and 36 and can surround the periphery of the extended cargo bed 10a (10b).

The transporter in the lift of the present invention thus configured is normally used as a main cargo bed (only the cargo floor on the main frame 11) as shown in the right half of FIG. . In this state, the lateral members 21a and 21b of the expanded carrier frames 20 and 20 are fixed to the support members 13 and 13 of the main frame 11 by the bolts 18 attached to the fixing seats 16 attached to the support members 13 and 13 of the main frame 11. Since the frames 20 and 20 are accommodated, the cargo bed can be used with a predetermined size.

Next, when it becomes necessary to expand the luggage carrier due to the equipment to be transported and the like, both of the extended luggage carrier frames 20 and 20 are pulled out from the main frame 11 to both sides as described above. By setting to, it is possible to increase the floor area of the loading platform. To extend the luggage carrier, the horizontal members 21a and 21b of the extended luggage carrier frame 20 support the main frame 11 when the bolts 18 attached to the fixed seat 16 are unfixed and the extended luggage carrier frame 20 is pulled outward. The lateral member 21a is moved along the members 13 and 13a, and as described above, the lateral member 21a is lifted by the engagement of the tip of the bolt with the fixed seat 16 attached to the support member 13 of the main frame 11 and the lip 21a '. It is pulled out. At the same time, the intermediate lateral member 21b is pulled out without rising due to the sliding engagement between the holding seat piece 25 attached to the inner end of the intermediate lateral member 21b and the support member 13a. Therefore, the position is set by pulling out the required size and then fixing the lateral member 21a by the bolt 18.

In the extended carrier frame 20 pulled out in this way, the lateral members 21a and 21b are engaged and fixed with the lip 21a 'and the tip portion 18' of the bolt 18, and the holding seat piece 25 and the support member 13a are provided. By contact with the lower surface of the load carrier frame 20, it is supported against the downward load acting on the outer end portion of the extension carrier frame 20, and thus is maintained in a stable state. Further, since the upper edges of the support members 13 and 13a of the main frame 11 and the lateral members 21a and 21b of the extension carrier frame 20 are aligned at substantially the same height, both members are aligned and held in parallel as described above. As a result, since the same upper surface is formed and maintained even after the expansion, it is possible to secure the safety without spreading the floorboards 45 and forming steps.

[0018]

[Effect of device]

 As described above, according to the transporter of the present invention, the extended loading frame with respect to the main frame of the loading platform is structured so that the engagement of the constituent members in the sliding direction of the two is open, so that rainwater, etc. may accumulate inside. In addition, the inspection from the outside becomes easy and the durability can be improved. In addition, there is no rattling when the extended cargo frame is pulled out, and it can be maintained at the same level as the main frame at all times, which improves safety and simplifies the structure and is economically advantageous.

[Brief description of drawings]

FIG. 1 is a side view of a specific example of a construction lift including a carrier of the present invention.

FIG. 2 is a front view showing a state in which a cargo bed is expanded and a normal state in the carrier of FIG.

FIG. 3 is a plan view showing a frame structure of a luggage carrier part, showing a state in which an extended luggage carrier frame on one side is pulled out.

FIG. 4 is an enlarged detailed view showing a corner portion of the main frame, in which (a) shows a plane and (b) shows a cross section taken along line BB in (a) with the direction changed by 90 °. FIG.

5A and 5B are enlarged detailed views of a portion A in FIG. 3, where FIG. 5A is a plan view and FIG. 5B is a view seen from the right side of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 carrier 2 support body 2'guide rail 5 lifting frame 10 loading platform 10a, 10b extended loading platform 11 main frame 12 main beam material 13,13a support member 16 fixed seat 18 bolt 20 extended loading platform frame 21a, 21b lateral member 21a 'lateral member Lip 22 Outer frame material 23 Patch plate 25 Holding seat piece 45 Floor plate

Claims (1)

[Scope of utility model registration request] 1. A transporter for a construction lift, comprising extended cargo bed frames on both left and right sides of a main frame of a cargo bed which is horizontally projected and arranged at a front lower part of an elevating frame, wherein the extended cargo frame is a lateral direction of the main frame. A plurality of lateral members movable along the side surfaces of the plurality of supporting members, respectively, are fixed to the outer frame member at the outer ends of the plurality of lateral members, are framed in a comb shape, and are arranged symmetrically with respect to each other. The inner ends of the transverse members at both ends in the front-rear direction can be bolted to the positioning fixing seats provided on the corresponding supporting members of the main frame, and the inner ends of the transverse members at other intermediate positions. On the lower surface, a holding seat piece that is slidably engaged with the lower surface of the corresponding support member of the main frame and also functions as a stopper is attached, and the support member arranged in the lateral direction of the main frame and each of the expansion luggage frames The upper ends of the horizontal members of the Carriage in the construction for lifting, characterized in that the floor plate count on plates provided on the outer frame member of both extended bed frame is configured to be spread.