JP5602436B2 - Simple lifting device for carrier - Google Patents

Description

  The present invention relates to a simple lifting device for a carrier having a simple configuration for raising and lowering a carrier at a work site.

  At work sites that transport large heavy objects such as bridge construction, large transport vehicles that are knitted by connecting a plurality of carriers are used. Such carriers are transported to the site by trailers where they are suspended by a crane truck and connected to other carriers to form a large transport vehicle. Since the carrier is heavy and can be as high as 30 to 40 tons, it is necessary to prepare a large crane vehicle only for use in on-site connection work, which increases costs.

  Patent Document 1 below discloses a lifter device (carrier lifting device) as an alternative to a large crane vehicle. This is because the large crane truck cannot travel on public roads, so it is proposed as a compact structure with excellent transportability to solve problems such as disassembling and transporting and assembling at the work site. Has been. The carrier lifting device includes a jack at four corners of a flat lifting frame, and a suspension device that supports the carrier at both ends of the lifting frame. The carrier is supported by the suspension device by extending and contracting the jack. To move up and down. And the jack which raises / lowers the raising / lowering frame has a structure which can change a lying posture and a standing posture via the rocking | fluctuating arm rotated by a cylinder.

JP 2007-001689 A

  However, such a conventional carrier lifting apparatus has become expensive due to its complicated structure. In other words, it does not require disassembly and assembly like a large crane, so it is easy to transport and there are no work problems, but it has a mechanism to change the posture of the jack and jack, only to get the carrier on and off the trailer It was still expensive to use. In addition, since the vehicle body length varies depending on the number of travel devices such as 4-axis and 6-axis, it is desirable to change the suspension width according to the length of the vehicle body. However, the conventional carrier lifting device cannot cope with such a carrier having different lengths in the longitudinal direction of the vehicle body.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a simple lifting device for a carrier that is inexpensive and can be easily changed in a hanging position according to the size of the carrier.

The simple lifting device for a carrier according to the present invention comprises a longitudinal longitudinal beam into which the carrier enters, a transverse beam orthogonal to the longitudinal beam, and a support column provided in the vertical direction, and they are assembled in a state in which they can be disassembled from each other. The support column can be fixed at a plurality of locations in the longitudinal direction of the vertical beam, a winch fixed to the support column and driven by an external drive source, and the vertical beam according to the fixing position of the support column. It can be fixed at a plurality of locations in the longitudinal direction, and has a sheave unit that guides a wire rope unwound from the winch, and the sheave unit is located directly above the support column of the vertical beam. And the horizontal beam is fixed at a position shifted from the support column of the vertical beam .
In the simple lifting device for a carrier according to the present invention, the vertical beam, the horizontal beam, and the supporting column are H steel, and for joining and fixing the end surfaces, a connecting plate is welded to the end surfaces, and the connecting plate and the H steel itself. It is preferable that the frame is configured by passing a bolt through a fastening hole formed in and fastening it with a nut.

  According to the present invention, since the frame is mainly composed of vertical beams, horizontal beams, and support columns, and has a simple configuration including a winch and a sheave unit, the price of the device itself can be reduced, and the support columns can be reduced. It is possible to easily cope with carriers of different sizes by changing the fixing position of the sheave unit. Moreover, since it can be disassembled, transportation is also easy. If H steel is used for the vertical beam, the horizontal beam, and the support column, the material cost can be reduced and the price of the apparatus can be further reduced.

It is the longitudinal direction side view which showed embodiment of the simple raising / lowering apparatus for carriers. It is the top view which showed embodiment of the simple raising / lowering apparatus for carriers. It is the longitudinal direction front view showing the embodiment of the simple raising and lowering device for carriers. It is the perspective view before the fastening which showed the part about the fastening location of a vertical beam, a horizontal beam, and a support pillar. It is the apparatus side view which showed the use condition about the simple raising / lowering apparatus for carriers. It is the apparatus side view which showed the use condition about the simple raising / lowering apparatus for carriers. It is the apparatus side view which showed the use condition about the simple raising / lowering apparatus for carriers. It is the apparatus front view which showed the use condition about the simple raising / lowering apparatus for carriers. It is the apparatus side view which showed the use condition about the simple raising / lowering apparatus for carriers made to respond | correspond to a small carrier.

  Next, an embodiment of a simple lifting device for a carrier according to the present invention will be described below with reference to the drawings. 1 to 3 are diagrams showing a simple lifting device for a carrier (hereinafter simply referred to as a “simple lifting device”). FIG. 1 is a longitudinal side view, FIG. 2 is a plan view, and FIG. It is a longitudinal direction front view. As will be described later, the simple lifting device 10 is for loading and unloading carriers on a trailer that has entered in the longitudinal direction. Therefore, it has four support pillars 11 provided at a width interval at which the trailer can enter and at a front-rear interval for hanging the carrier back and forth, and two left and right vertical beams 12 extending in the trailer entry direction, Orthogonal transverse beams 13 connecting the longitudinal beams 12 are fixed to each other.

  A winch 15 is fixed to each of the four support pillars 11 and a sheave unit 16 is fixed on the vertical beam 12. As shown in FIG. 3, the wire rope 17 unwound from the winch 15 is stretched over the sheave unit 16 from the outside to the inside of the apparatus, and a hook 18 for hooking the carrier is attached to the tip of the wire rope 17. 1 and 2, the wire rope 17 and the hook 18 are omitted.

  The winch 15 is configured such that the winch drum rotates by driving a motor via a speed reducer, and unwinds and rewinds the wire rope 17. The simple elevating device 10 does not have a small power source for the winch 15 in the device itself in order to make a simple configuration, and uses an external drive source, for example, an on-site lighting generator The motor is driven by being connected to.

  The supporting column 11, the vertical beam 12 and the horizontal beam 13 constituting the simple lifting device 10 are all H steel, and these are fixed by fastening bolts and nuts, so that the frame of the device can be disassembled and assembled. is there. Specifically, the support columns 11 are abutted and fastened to both ends of the longitudinal beam 12 from the bottom, and the lateral beams 13 are abutted and fastened to the longitudinal beam 12 from the side. ing. FIG. 4 is a perspective view before fastening, showing a part of such fastening locations.

  The vertical beams 12 are arranged so that the parallel plates 121 of H steel are up and down. A connecting plate 11p is welded to the upper end of the support column 11 abutted against the parallel plate 121, and a fastening hole for fixing the connecting plate 11p and the parallel plate 121 of the vertical beam 12 by fastening a bolt with a nut. 12a and 11a are formed. On the other hand, the horizontal beam 13 is inserted so as to be fitted between the upper and lower parallel plates 121 of the vertical beam 12. A connecting plate 13p is also welded to the end of the horizontal beam 13 so that it is abutted against the joint plate 122 of the vertical beam 12. And the fastening holes 13b and 12b for passing a bolt and fastening with a nut are formed in the connecting plate 13p and the joint plate 122 of the vertical beam 12.

  As can be seen from the figure, the fixing positions of the support column 11 and the horizontal beam 13 with respect to the vertical beam 12 are shifted in the longitudinal direction of the vertical beam 12 so that the positions of the fastening holes 12a and 12b are shifted. This is because the sheave unit 16 is fixed on the support pillar 11 and the wire rope 17 is hung from the outside to the inside of the frame as shown in FIG. 3, so that the wire rope 17 does not interfere with the cross beam 13. It is to do. Therefore, on the upper side of the parallel plate 121 of the vertical beam 12, a fastening hole 12 c for fixing the sheave unit 16 is formed at the same position as the fastening hole 12 a for the support column 11 when viewed in the longitudinal direction of the vertical beam 12. Has been.

As shown in FIGS. 1 to 3, the sheave unit 16 is configured such that two pulleys are axially supported in a rotational direction so that a wire rope 17 can be spanned across the vertical beam 12. The unit body of the sheave unit 16 is formed with a fastening hole corresponding to the fastening hole 12c of the vertical beam 12, and can be attached to and detached from the vertical beam 12 by a bolt and a nut. Further, the winch 15 fixed to the support column 11 is configured to be fixed to the support column 11 or detachably attached to the support column 11.

  In the simple lifting device 10 of this embodiment, during transportation, the support pillar 11, the vertical beam 12, and the horizontal beam 13 from which the bolts and nuts are removed are disassembled to become a bar-shaped member. Further, the winch 15 and the sheave unit 16 can also be removed or transported while being fixed to the vertical beam 12 and the support column 11, and in any case, the four support columns 11, the two vertical beams 12 and the horizontal beam 13 can be transported. , And the winch 15 and the sheave unit 16 can be compactly packed and mounted on a normal truck and transported to the site.

  At the site, assembly is performed by lowering members such as the support pillar 11, the vertical beam 12, and the horizontal beam 13 by using a truck crane or the like. As described above, the support pillar 11, the vertical beam 12, and the horizontal beam 13 are aligned with the corresponding fastening holes 12a, 11a, etc., passed through the bolts, and fixed by tightening with the nuts, as shown in FIGS. Assembled as a frame of the device shown. Further, the winch 15 and the sheave unit 16 are fixed thereto, and the wire rope 17 is hung on the sheave of the sheave unit 16 so that the carrier can be suspended.

  Next, FIG. 5 thru | or FIG.7 and FIG.8 is the figure which showed the use condition of this simple raising / lowering apparatus 10. FIG. The carrier 70 is transported by the trailer 80 on the way to the site. As shown in FIG. 5, with the carrier 70 mounted, the trailer 80 passes between the support columns 11 of the simple lifting device 10 along the direction of the longitudinal beam 12. enter in. The hook 18 is hooked by the unwinding of the winch 15 on the carrier 70 on the trailer 80 stopped at a predetermined position. Thereafter, the carrier 70 is pulled up by rewinding the wire rope 17 by the winch 15 as shown in FIGS. In the meantime, the trailer 80 is advanced, and the wire rope 17 is unwound by the winch 15 and the carrier 70 is lowered to the ground as shown in FIG. On the other hand, when the carrier 70 is transferred, it is mounted on the trailer 80 by the reverse operation.

  The illustrated carrier 70 is a six-axis carrier including six traveling devices 71 in the longitudinal direction of the vehicle body, but there are various carrier sizes. Therefore, in the case of a small carrier, the interval between the hanging positions by the winch 15 and the sheave unit 16 arranged along the vertical beam 12 is too wide. Therefore, the simple lifting device 10 of the present embodiment is configured such that the hanging position can be changed according to the carrier. Here, FIG. 9 is a side view of the apparatus showing the use status of the simple lifting device for carriers corresponding to the small carrier.

  That is, as shown in FIG. 4, fastening holes 12h, 12i, and 12j for fastening the support column 11, the horizontal beam 13, and the sheave unit 16 to the vertical beam 12 with bolts and nuts are fixed to the fastening holes. 12a, 12b and 12c are formed at different locations. As a result, as shown in FIG. 9, the distance between the support pillars 11 along the vertical beam 12 is reduced so as to be compatible with a small carrier 75, and the horizontal beam 13 and the sheave unit 16 are fixed accordingly. The device 10 can be assembled. As described above, the carrier 75 is loaded and unloaded using the simple lifting device 10.

  Therefore, according to the simple lifting device 10 of the present embodiment, the device itself has a simple configuration including the winch 15 and the sheave unit 16 on the frame including the support pillar 11, the vertical beam 12, and the horizontal beam 13. We were able to make the price of Moreover, the support columns 11, the vertical beams 12, and the horizontal beams 13 are inexpensive in that they use H steel, which is an off-the-shelf product. Further, since the simple lifting device 10 has a structure that can be easily disassembled and assembled, it can be stored in a narrow space by disassembling, and the cost can also be reduced in that no special consideration is required for transportation. Can do. And it can be easily assembled on site and is easy to handle. Furthermore, since the assembly according to the size of the carrier is possible, it is possible to cope with a carrier having a different size by one unit, and the cost can also be suppressed in that respect.

As mentioned above, although embodiment was described about the simple raising / lowering apparatus for carriers based on this invention, this invention is not limited to this, A various change is possible in the range which does not deviate from the meaning.
In the embodiment described above, a plurality of fixing positions of the cross beam 13 are provided and the fixing position is changed according to the support pillar 11. However, the fixing position of the cross beam 13 is one. In such a case, it is conceivable that an oblique member is connected to the pair of cross beams 13 and 13 to form a truss structure.
In the above embodiment, the winches 15 are fixed to the four support pillars 11 respectively. However, if a two-drum winch is used, the winches 15 are provided only on one of the support pillars 11 facing each other along the cross beam 13. Two wire ropes 17 may be hung along each support column 11.

  Furthermore, in the above embodiment, the generator for illumination is given as an example of the external drive source. However, when the winch of the simple lifting device 10 is configured by a hydraulic winch instead of an electric winch, the hydraulic winch includes The hydraulic unit at the site is connected.

DESCRIPTION OF SYMBOLS 10 Simple lifting device 11 for carrier 11 Support pillar 12 Vertical beam 13 Horizontal beam 15 Winch 16 Sheave unit 17 Wire rope 70 Carrier

Claims (2)

A longitudinal beam in the longitudinal direction into which the carrier enters, a transverse beam orthogonal to the longitudinal beam, and a support column provided in the vertical direction are assembled in a state where they can be disassembled with each other, and the support column is a longitudinal beam of the longitudinal beam A frame that can be fixed at multiple locations in the direction;
A winch driven by an external drive source fixed to the support column;
It can be fixed at a plurality of locations in the longitudinal direction of the longitudinal beam according to the fixing position of the support column, and has a sheave unit that guides a wire rope unwound from the winch ,
The sheave unit is fixed at a position directly above the support column of the longitudinal beam;
The transverse beam is fixed to the longitudinal beam at a position shifted from the support column;
A simple lifting device for carriers. The simple lifting and lowering device for a carrier according to claim 1,
The vertical beam, the horizontal beam, and the support column are H steel, and for attaching and fixing the end faces, a connecting plate is welded to the end faces, and bolts are passed through fastening holes formed in the connecting plate and the H steel itself. A simple lifting and lowering device for a carrier, wherein the frame is constituted by being fixed by fastening.

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