JP3105716U - Table lift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lift table which has a structure suitable for carrying in materials at a construction site and is easy to install.
[Solution]
The lift table 1 includes a fixing portion for connecting beam members (including a frame portion) 14 on the side surfaces of the lower frame 10 and the table 11. When at least two table lifts 1 are arranged side by side, first and second connecting beam members 14 and 20 are respectively installed and fixed between lower frames 10 and 10 and tables 11 and 11 of the table lifts 1 and 1. By doing so, the lift tables of a size that can be installed manually are connected to each other, and a large lift table is formed. Therefore, it is possible to achieve both the same work efficiency as the integrated large lift table and the ease of installation.
[Selection] Figure 2

Description

  The present invention installs in a place such as a construction site where it is difficult to carry in materials with a transport vehicle due to steps, and moves a heavy object such as the transport vehicle up and down by raising and lowering the table as a loading platform. The present invention relates to a table lift used to enable a material to be carried in a transport vehicle.

At a construction site, for example, when a material is carried into a building through a window of a building under construction, the work of carrying a heavy object is not easy because there is a step between a floor surface and a window. .
On the other hand, a table lift is sometimes used to lift a heavy object to a predetermined height in a factory or the like. The table lift is usually a connecting means such as a plurality of links (scissors) between the lower frame and the table, for example, a plate-like body intersects in an X shape, one end of which is fixed to the table and the other end of which is fixed to the lower frame. And a telescopic mechanism such as a hydraulic cylinder is provided between the lower frame and the table, or between both links, or between one link and the table, and the table is operated by operating these telescopic mechanisms and connecting means. Is raised and lowered. Further, there is also known an apparatus in which a plurality of tables are installed side by side in order to raise and lower a large object, and the tables are raised and lowered in synchronization.
JP 2001-90707 A

  In a construction site, many materials used for exterior and interior of a building are preliminarily manufactured in a factory, and the materials are transported to the site. In order to carry such materials, the demand for a table lift having a large loading area is increasing.

  However, in order to install a table lift having a large loading area, it is not only impossible to install the table lift using only human power, but also a large table lift such as a construction site cannot be permanently installed.

In addition, since the required size differs depending on the installation space and application depending on the construction site, it goes without saying that it is uneconomical to prepare table lifts of various sizes.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a table lift having a structure suitable for carrying in materials at a construction site.

The present invention has the following configuration in order to solve the above problem.
That is, a lower frame, a table arranged above the lower frame, a connecting means arranged between the lower frame and the table to move the table up and down, and a telescopic mechanism for operating the connecting means, A temporary table lift used to carry in building materials,
The lower frame and the side surface of the table are further provided with fixing portions for connecting beam members, and when a plurality of these table lifts are juxtaposed, the connecting beams are erected and fixed between the lower frames of the table lifts and between the tables, respectively. , And can be connected.

  The table lifts have the same or different sizes. Further, as the connecting means, for example, a pantograph-shaped scissor crossing in an X shape can be used.

It is preferable that the table lift can be disassembled into at least a plurality of units of the lower frame including the connection unit, the table, and the connection beam member.
The table and the connection beam member can be mounted in combination of a plurality of types, the loading area can be changed according to the size of the load, and between the table lifts that are arranged side by side according to the variable amount of the loading area of the table. Can be adjusted.

  Accordingly, for example, the lower frame and the connection beam member are each provided with a bolt hole as the fixing portion, and at least one of the lower frame and the connection beam member is provided with a plurality of sets or elongated holes of the bolt hole. The bolt holes to be used can be selected in accordance with the variable amount of the loading area, and the distance between the table lifts arranged side by side can be adjusted.

  The expansion mechanism is a hydraulic actuator, and a hydraulic circuit provided on a table lift connected to the hydraulic actuator includes a flow control valve for each table lift, and the hydraulic actuator is connected to an external hydraulic circuit. It is preferable that even if a plurality of table lifts are connected, they are controlled by one hydraulic control unit.

  In this way, even if an oil leak occurs, a sudden drop of the table is suppressed for each table lift. Further, the synchronization of the ascending and descending operations of the plurality of connected table lifts can be easily realized.

  According to the present invention, when a plurality of table lifts are arranged side by side, it is possible to connect the table lifts by erection and fixing the connecting beams between the lower frame and the tables of the table lifts, so that the table lifts can be installed manually. By connecting a plurality of lift tables having sizes within a suitable range, a lift table equivalent to a large lift table can be obtained. Therefore, it is possible to ensure both work efficiency and ease of installation.

  In addition, a fall-type plate-like member that serves as a fall prevention guard when moving up and down and becomes a crossing board when getting on and off and a handrail for preventing fall will be provided around the table, so that safety when lifting and lowering the lift table will be improved. Can be secured.

  When the table lift of the present invention is configured so that it can be disassembled into a plurality of units of at least the lower frame including the connection means, the table, and the connection beam member, the space at the construction site or the like is limited. It can be installed manually at the place.

  Further, if the table and the connection beam member can be mounted with a plurality of types of combinations and the loading area can be changed according to the size of the load, the required size differs depending on the installation space and application depending on the construction site. However, it is possible to appropriately cope with the situation of the site, and it is not necessary to prepare table lifts of various sizes.

  As described above, the table lift of the present invention is of an exploded type so as to be applicable to various construction sites. By making it possible to disassemble into several units (parts) in this way, manual movement, assembly and disassembly can be performed appropriately, and the table size can be changed by combining a plurality of types of parts. is there. Less than. The details will be described.

The drawings show one embodiment of the table lift of the present invention. FIG. 1 is a side view of the table lift 1. The table lift 1 includes a lower frame 10, a table 11 disposed above the lower frame 10, a connection means 12 disposed between the lower frame 10 and the table 11, and a connection means 12 for raising and lowering the table; And an expansion / contraction means for operating the power supply 12.

  The lower frame 10 is formed in a rectangular frame shape, and a frame portion as a first connection beam member 14 described later is provided on both left and right sides thereof. The lower ends of the connecting means 12 are attached to these frames.

  The table 11 has, for example, a rectangular plate shape, and a relatively low plate-shaped guard portion 15 is provided on both left and right sides of the table 11. On one side of the table 11, a handrail 16 is provided as shown in FIGS.

  At the front end and the rear end of the table 11, plate-like members 17 are provided along those ends. Each of the plate-like members 17 serves as a guard for preventing falling when ascending and descending, and serves as a crossover plate when getting on and off, and is provided in a retractable manner via a hinge 18 (see FIG. 4).

FIG. 2 is a front view showing a state in which two table lifts 1 and 1 are connected.
As shown in FIG. 2, the lower frames 10, 10 of the table lifts 1, 1 are connected by frame portions as first connection beam members 14 provided on both sides.

  As shown in FIG. 5, the frame portion (first connection beam member 14) is provided with a bolt hole 19 for bolt connection for connecting the lower frame 10. More specifically, as shown in FIG. 6, a plurality of sets of the bolt holes 19 are provided, and formed in a long hole shape. This is because, among the bolt holes 19 used according to the variable amount of the loading area of the table 10 described later, an appropriate one is selected, and the distance between the table lifts 1 and 1 arranged in parallel can be adjusted. is there.

  As shown in FIGS. 3 and 4, in the present embodiment, long tables 11A and 11C located at both ends corresponding to the lower frames 10 and 10 and a short table 11B interposed therebetween are formed by a second table. They are connected by connecting beam members 20, 20.

  Thus, in the table lift of the present invention, a desired loading area can be obtained by selecting the length (area) of the table 11 and the length of the second connecting beam member 20 according to the required loading area. it can.

Next, the connection means 12 and the expansion and contraction means will be described.
The connecting means 12 has, for example, link members 30 and 31 intersecting in an X-shape. The inner ends 32 and 33 of these link members 30 and 31 in the drawing are rotatably attached to the lower frame 10 or the table 11. The left and right outer ends 34 and 35 are fixed to the table 11 or the lower frame 10 so as to be slidable. A hydraulic cylinder 13 as a hydraulic actuator is used as the expansion and contraction means, and both ends thereof are rotatably attached to the lower frame 10 and the table 11.

  When the table 11 is to be raised, the telescopic means (the hydraulic cylinder 13) is extended. As a result, the link members 30, 31 extend in the up-down direction, and the table 11 rises. On the other hand, when lowering the table 11, the hydraulic cylinder 13 is contracted. Thereby, the link members 30 and 31 are folded and the table 11 is lowered. A table elevating mechanism using such a scissor is well known.

However, in the present invention, as shown in FIG. 7, a hydraulic cylinder 13 which is connected to the table lift 1 and is a hydraulic actuator and a hydraulic circuit 40 for operating the hydraulic cylinder 13 are provided. The hydraulic circuit 40 is provided with a flow control valve 41 for each table lift 1. Therefore, at a construction site where materials and construction workers come and go in a narrow space, even if an oil hose or the like that supplies oil to the hydraulic cylinder 13 is damaged and an oil leak occurs, the table 11 may drop suddenly. No danger at the construction site is avoided.

  The hydraulic circuits 40 are provided in a number corresponding to the table 1 (here, two), and are connected to each other via a hydraulic coupler 42. Further, the two connected hydraulic circuits 40 are further connected to an external hydraulic control device 44 via a hydraulic coupler 43.

  Therefore, each hydraulic cylinder 13 can be controlled by an external hydraulic control device 44, and is controlled collectively by one hydraulic control unit even when a plurality of table lifts 1, 1 are connected to each other. Therefore, the entirety of the plurality of connected table lifts can be handled as one device, and workability is also good.

  According to the structure of the above-described embodiment, the lift table 1 to which the present invention is applied includes the lower frame 10 and the side of the table 11 on which the first connecting beam member (including the frame portion) 14 and the second connecting beam member 20 are fixed. When the two table lifts 1 are arranged side by side, the first connecting beam member 14 and the lower frame 10, 10 between the table lifts 1, 1 and between the tables 11, 11 are provided. By mounting and fixing the second connection beam member 20, a lift table having a size that can be installed manually is connected. Therefore, it is possible to secure the same work efficiency as that of the large lift table and to easily install the lift table.

  Further, around the table 11, there are provided a foldable plate-like member 17 which serves as a guard for preventing falling when ascending and descending and serves as a crossing board when getting on and off, and a handrail 16 for preventing falling. Safety at the time of lifting / lowering of 1 can be ensured.

  Moreover, the table lift 1 includes the lower frame 10 having at least the link members 30 and 31 serving as the connecting means 12 and the table 11 and a plurality of the first connecting beam members 14 and the second connecting beam members 20. The unit can be disassembled so that it can be manually installed or removed in a space where space is limited, such as a construction site.

  The table 11 and the second connection beam member 20 on the upper part can be mounted in a plurality of combinations, so that the loading area can be changed according to the size of the load. Therefore, even if the required sizes are different, it is possible to cope with the situation at the site, it is not necessary to prepare table lifts 1 of various sizes in advance, and it is possible to obtain sufficient economic effects.

  Accordingly, a bolt hole 19 for connecting the lower frame 10 and the lower first connection beam member 14 is provided in a long hole shape, and the bolt hole 19 used according to the variable amount of the loading area of the table 11 is provided. And the distance between the table lifts 1 and 1 arranged side by side can be adjusted. Therefore, even if the size of the table 11 is changed in accordance with the required loading area, the connection of the lower frame 10 does not require any extra members, so that it is more economical.

  On the other hand, since the expansion and contraction mechanism is a hydraulic actuator, it is possible to sufficiently cope with a required load resistance. Of course, the hydraulic circuit 40 provided in the table lift 1 connected to the hydraulic actuator has a table lift. A flow control valve 41 is provided for each one. Therefore, the synchronization of the ascending and descending operations of the plurality of connected table lifts 1 can be easily controlled.

  In the above embodiment, the connection means 12 and the expansion / contraction means have been described using the X-type link members 30 and 31 and the hydraulic cylinder 13 as an example. It goes without saying that means and telescopic means can be used.

  It is used for transporting materials at construction sites and can be applied to places where there is a step and the loading area is variable, or where permanent installation is difficult.

FIG. 4 is a side view showing a rising state of the table lift according to the present invention. It is a front view which shows the rising state of a table lift. It is a top view which shows the table of a table lift. It is a front view which shows the connection state of a table. (A) shows the case where the plate member functions as a guard portion, and (b) shows the case where the plate member functions as a crossover plate. It is a front view which shows the connection state of a lower frame. FIG. 6 is a partially enlarged view of FIG. 5. It is explanatory drawing which shows a hydraulic circuit.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Lift table 10 Lower frame 11, 11A, 11B, 11C Table 12 Connecting means 13 Hydraulic cylinder 14 Frame (1st connection beam member)
17 Plate member 19 Bolt hole 20 Second connecting beam member 30, 31 Link member 32, 33 End (rotatably connected)
34, 35 end (slide connection)
40 hydraulic circuit 41 flow control valve 44 hydraulic control unit

Claims (5)

A building material, comprising: a lower frame, a table arranged above the lower frame, a connecting means arranged between the lower frame and the table, for moving the table up and down, and a telescopic mechanism for operating the connecting means. A temporary table lift used to carry
The lower frame and the side surface of the table are further provided with fixing portions for connecting beam members, and when a plurality of these table lifts are juxtaposed, the connecting beams are erected and fixed between the lower frames of the table lifts and between the tables, respectively. And a table lift, which can be connected.   2. The table lift according to claim 1, wherein a foldable plate-like member that functions as a fall prevention guard when ascending and descending and serves as a crossing board when getting on and off is provided around the table. 3.   3. The table lift according to claim 1, wherein the table lift can be disassembled into at least a plurality of units of the lower frame including the connection unit, the table, and a connection beam member. 4.   The table and the connection beam member can be mounted in combination of a plurality of types, the loading area can be changed according to the size of the load, and between the table lifts that are arranged side by side according to the variable amount of the loading area of the table. 4. The table lift according to claim 3, wherein the distance of the table lift is adjustable.   The expansion mechanism is a hydraulic actuator, and a hydraulic circuit provided on a table lift connected to the hydraulic actuator includes a flow control valve for each table lift, and the hydraulic actuator is connected to an external hydraulic circuit. The table lift according to any one of claims 1 to 4, wherein the table lifts are connected and controlled by one hydraulic control unit even when a plurality of table lifts are connected.

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