JPH03106798A - Lifter - Google Patents

Abstract

PURPOSE:To lift a heavy article at the spot by preliminarily fitting on the heavy article a lifter constituted with a hard elastic plate curved as a sleigh in camber angle. CONSTITUTION:A square frame 1 is preliminarily fit on the bottom surface of a mobile heavy article or a stationary heavy article, a hard elastic plate 2 which is preliminarily slightly curved downward is fit to the bottom surface of the square frame 1 horizontally held with its outside edge on one edge 3 of the square frame 1 with a shaft 4 and with its other side edge on a slide bar 5 hooked inside the square frame 1 with a shaft 6. The top point of a feed screw bar 7 provided through the square frame 1 from the outside of the square frame 1 is screwed and inserted in a female screw member 8 provided on the slide bar 5 and by rotating the feed screw bar 7 through a handle 9 provided on the base edge of this feed screw bar 7, the carvature degree of the hard elastic plate 2 is varied so that the square frame 1 is elevated to a required height to lift the whole of the heavy article.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a device for lifting heavy objects, and in particular, by attaching it to the heavy object in advance, it can perform operations from lifting to pushing continuously. It was made so that it could be done. (Prior Art and Problems to be Solved by the Invention) Conventionally, jacks have been common as lifting devices used at construction sites, etc. Even manual jacks can lift quite heavy objects, but Originally, this device was used by inserting it under the heavy object to be lifted, and for this purpose, it was necessary to create a space under the required heavy object in advance to accommodate the jack, and the heavy object This is inconvenient if you need to lift it from time to time, or if you need to move it further after lifting it. (Means for Solving the Problems) In contrast, the present invention is mainly attached to a required heavy object in advance so that it can be lifted on the spot, and the lifting mechanism is It is constructed by a hard elastic plate curved into a warp shape. (Embodiment of the Invention) An embodiment of the lifting device of the present invention will be described with reference to the drawings. As shown in FIG. One end of the hard elastic plate 2 is attached to one side 3 of the rectangular frame 1 by a shaft 4, and the other end is attached to a sliding rod 5 engaged in the rectangular frame 1 by a shaft 6. A feed screw rod 7 is provided by penetrating the rectangular frame from the outside of the frame L, and the tip of this feed screw rod is screwed into a female screw member 8 provided on the sliding rod 5, which is provided at the base end of the feed screw rod 7. By rotating the feed screw rod 7 via a fixed or removable handle 9, the degree of curvature of the hard elastic plate 2 is changed, and the rectangular frame 1 is raised and lowered to a required height. Note that 10 indicates a collar member fixed to the feed screw rod 7. Further, in this case, a reinforced Teflon resin plate is used as the hard elastic plate 2. (Effects of the Invention) The device of the present invention has the +11 rectangular frame 1 attached in advance to the bottom surface of a self-propelled heavy object or a stationary heavy object, and when necessary,
The feed screw rod 7 is rotated to lift the entire heavy object or to move the entire object to another location. (2)
Normally, the heavy objects are stored in a separate location, and when necessary, the rectangular frame 1 is lowered and the heavy objects are placed on top of it, and after being raised,
The curved hard elastic plate 2 is used as a swinging platform to transport the entire platform to a desired location, and then lower the heavy object and set it in place. Figure 2 shows an example of the above Ill, and shows the case where it is installed in a car. In other words, a set of two rectangular frames 1 is used as a car a.
The axle is sandwiched between the left and right rear wheels and fixed to the underside of the vehicle body.
Place the handle 9 of the feed screw rod 7 at a position on the rear of the car body where it can be easily operated. In this way, the hard elastic plate 2 is normally held in the raised state, and when it becomes necessary to lift the entire car, for example, when the rear wheel has fallen into a side ditch, the hard elastic plate 2 is raised as shown by the dotted line. This is a device that raises the entire car by curving it extremely, and it takes about 1
It was designed to allow people to escape. Figure 3 also shows the case where this is attached to heavy furniture installed indoors. That is, the square frame l is attached to the bottom surface of the furniture b,
Hard elastic [2] originally had a shape close to a flat plate, and was further flattened by the weight of the furniture. If you want to move this furniture to another room, you can raise it using the handle 9, move it by pushing it, and then lower it at the desired location. In this case, for light items such as furniture, the hard elastic board 2 can be used as it is as a sled. Next, Figure 4 shows an example of (2) above. That is, after inserting the heavy object C below which is supported with a space provided on the lower surface, the heavy object is lifted up via the feed screw rod 7 and placed in the rectangular frame 1.
Place it on the top. Next, the entire body is moved little by little by manually moving the curved hard elastic plate 2 back and forth like a seesaw. The principle of this forward movement through rocking is the same as that of a self-propelled ramming machine, which is a rather large road ramming device equipped with an eccentric rotating weight on the top of the seesaw-shaped main body.
In this way, it is possible to lift, lower, and move considerably heavy objects. As described above, since the device of the present invention raises and lowers heavy objects by the degree of curvature of the hard elastic plate 2, it has many advantages such as being flat when not in use, making it extremely convenient without being bulky. ．．

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is an overall slope view in a raised state, Figs. 2 and 3 are pre-installed on a car or furniture, respectively, and Fig. 4 is an illustration of an example of the structure being used as an independent lifting platform. FIG. l...Rectangular frame, ? ...Hard elastic plate, 4.
6...Shaft, 5...Sliding rod, 7...Feed screw rod.

Claims (1)

[Claims] A hard elastic plate whose middle part is slightly curved downward is placed on the lower surface of the rectangular frame held horizontally, and its both edges are respectively engaged with one side of the rectangular frame and the sliding plate facing the rectangular frame. A lifting device which is provided with a feed screw rod which is attached vertically to each rod and which connects the end face of a rectangular frame and a sliding rod so that the distance between them can be changed.