JP2009024471A - Folding ladder type unit applicable for display assembly, truss structure and side signboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding ladder type unit composed of a small number of components and foldable into a small size, which can be utilized and applied in a variety of purpose such as a truss structure, a side signboard, a display assembly equipment, or the like for easy storage and transportation. <P>SOLUTION: The folding ladder type unit including left and right vertical supports and a plurality of horizontal members for pivotally connecting them is composed in such a way that, as the horizontal members rotates upward, one of the vertical supports relatively moves upward in parallel to the other left vertical support and both vertical supports are folded up and integrated in a closely attached manner, so as to be in a rectangular column state. The folding ladder type unit is utilized for a multipurpose basic structure applicable to many purposes. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a folding ladder unit that constitutes various structures such as a truss structure, a sleeve signboard, and a display assembly such as a fixture.

  Conventionally, when assembling a display assembly, truss structure, etc., a long structure such as a metal pipe or a square was assembled to assemble the target structure on site, but this takes time and effort to assemble one by one. The work of building an assembly structure requires some experience. In order to assemble these various structures, it is often necessary to prepare a ladder separately.

In order to improve the efficiency of such workability, for example, the prefab unit method is generalized for residential construction, but in other fields, the basic material elements are transported to the site alone and assembled. Currently.
Conventionally, various folding ladders have been considered in order to reduce the size during transportation or storage.

  In order to minimize the space for storage and transportation and to facilitate transportation, etc., a step ladder that can be folded with respect to the width and depth has been proposed (Act. 62-62700), but the step portion can be folded. Each of the step halves and the vertical column must be connected via a support plate, and a mechanism with many components is employed, which requires a multi-step manufacturing process.

  Conventional folding ladders with a structure in which a plurality of recumbent bridges are connected between the left and right vertical struts, and one strut moves in parallel upward relative to the other strut as the recumbent pivots. Although it is considered (Patent No. 2531917), this only discloses the use as an evacuation ladder used for evacuating from the upper floor in case of emergency such as a fire, or a ladder used for private work. Other applicability is not taken into consideration.

A proposal of a ladder device that can be used as a ladder, a staircase, and a stepladder is made in Japanese Utility Model Publication No. Hei 6-47597, but this device is intended to be safe without fatigue because the footboard portion is always kept horizontal during the step. However, it is limited only to the category of the ascending / descending function equivalent to the ladder, and the usage method outside the ladder function is not assumed and lacks applicability.
Japanese Utility Model Publication No. 5-62700 Japanese Patent No. 2531917 Japanese Utility Model Publication No. 6-47597

  Compared to the conventional folding ladder, there are fewer components, it is very compact and easy to fold, easy to store and transport, and its role as a ladder for raising and lowering is secondary, but rather as a folding structure By making the best use of it, we propose a ladder-shaped unit that can be used and diversified for various purposes, such as truss structures, sleeve signboards, display assembly fixtures, and so on, to solve the above-mentioned problems.

  According to the present invention, by using a unit structure composed of as few components as possible, the number of manufacturing steps can be reduced, manufacturing costs can be reduced, and folding and unfolding can be performed quickly. Will also improve.

  In addition, when transporting to the site, it is easy to load on a loading platform such as a truck, and by adopting an external shape that makes it easy to maintain loading stability, there is also a risk of collapse of the load during transportation movement. Absent. Furthermore, by providing the main body unit with the outer shell member 7, the characteristics at the time of storage and transportation are improved.

  The storage space of the unit of the present invention in the warehouse or the material storage can also be horizontally stacked depending on the situation, can be stood against the wall, and in addition, the unit storage shelf with multi-stage shelves is assembled by the unit itself, and the folding unit Can be stored separately for various sizes, or can be stored separately from other materials and tools.

  In the field, this unit can be used as a component of the structure according to various needs, and can be used as a ladder in the assembly stage, and of course, it can also be used as a general ladder.

DESCRIPTION OF EMBODIMENTS Embodiments of a folding ladder unit 1 according to the present invention and various structures constituted by the unit 1 will be described with reference to the drawings.
As shown in FIG. 1, the folding ladder-shaped unit 1 that is the basis of the present invention comprises a left vertical column 2, a right vertical column 3, and a plurality of horizontal members 4 that connect the left and right vertical columns.
A plurality of horizontal members 4 are provided so as to maintain a constant interval in a horizontal state, and the horizontal members 4 are pivotally attached to pivot joints 5 with left and right vertical columns, and right vertical columns. 3 moves parallel to the left vertical strut 2 while being relatively close to the left vertical strut 2 as the counterclockwise rotation indicated by the arrow of the horizontal member 4 passes through the state of FIG. And the right vertical support column 3 are closely integrated when folded to form a single prism as shown in FIG.

  A spacer 6 having the same cross-sectional size as that of the vertical column is provided below the left vertical column 2. When the unit 6 is folded, the spacer 6 lifts the right vertical column 3 when the horizontal member 4 rotates counterclockwise as indicated by an arrow about the pivot coupling portion 5 with the left vertical column 2, and the right and left vertical columns At the time of close contact, stepped portions are formed in the upper and lower portions of the columns, and they may be caught during storage or putting in and out, so that efficiency may be impaired.

The basic unit 1 is preferably provided with an outer shell member 7 that is easy to carry and store and also protects from external damage. The outer shell member 7 is composed of a long body having three sides divided into two hexagonal columns in the vertical direction. The outer shell member 7 is attached to the outside of the left and right vertical struts, and includes the folding ladder unit 1 when folded. The structure is a hexagonal prism shape.
FIG. 4 is a sectional view taken along line AA of FIG. 1 representing the front view of the folding ladder unit 1 when unfolded, and FIG. 5 is a sectional view taken along line AA of FIG. Show.

Example 1 (truss structure)
An example in which the folding ladder unit 1 is applied to the truss structure unit 8 is shown in FIG. A truss structure in which the folding ladder unit 1 is expanded and one truss reinforcing member 9 is provided on the diagonals of all rectangular frames formed by the left vertical column 2, the right vertical column 3, and the horizontal member 4. A truss structure construction system is provided in which a body unit 8 is created and a plurality of the units 8 can be used in an appropriate combination depending on the application.

Example 2 (sleeve signboard structure frame)
Either the left vertical support column 2 or the right vertical support column 3 of the folding ladder unit 1 is attached to the wall surface 12 of the building or the like with an appropriate mounting hardware 11 according to the situation of the wall surface, thereby creating the sleeve signboard structure frame 10. . The frame 10 is developed and functioned, and when not in use, a sleeve signboard system that can be folded to the wall surface side and reduced in size is provided. FIG. 7 shows from the folded state when the sleeve signboard structure frame 10 is not used to the unfolding when it is used.

Example 3 (Display assembly fixture)
In a state where the pair of folded ladder-type units 1 developed are spaced apart from each other, a plate-like body is supported on each horizontal member 4 on the same horizontal reference in both units 1 to form a shelf board 13. The fixture unit 14 shown in FIG. By using a plurality of the fixture units 14 and arranging them so that the side portions are adjacent to each other, it is possible to configure a display assembly fixture unit group that extends widely in the width direction.

A plurality of fixture units 14 may be used to form a fixture unit group having a shelf with a depth by connecting the vertical struts of each side portion so that the plurality of side portions are planar. it can.
Further, the shelf plate 13 can be folded without removing the shelf plate 13 by keeping the shelf plate 13 in a pivoted state interlocked with the horizontal member 4 in the furniture unit 14.

The invention's effect

  It is a unit 1 consisting of very few components in which the two vertical struts 2 and 3 and the horizontal member 4 are connected in a pivoted state in which pivotability is maintained by the pivot connecting portion 5, and is easy to standardize and manufacturing process. Therefore, mass production is easy and low-cost supply to consumers is possible.

  The presence of the spacer 6 makes it possible to fill the upper and lower portions of the column during folding storage with a step space formed by the parallel movement of the column, and eliminate the uneven portion so that the width of the reduction unit 1 extends between the upper and lower sides. It can be straightened and smoothed without being caught, for example, when folding and storing a plurality of units, or when pulling out a unit from the stored state.

It is small and lightweight, and even a large number of ladder units can be folded and stored quickly, or the required number of units can be immediately extracted from the stored state and put into use.
Furthermore, the construction target is a foldable ladder unit that is extremely diverse, such as a truss structure, a sleeve signboard, and a display assembly fixture.

It is a front view of a folding ladder type unit. It is a figure showing a folding intermediate state. It is the figure which folded this invention unit. It is AA sectional drawing of the state which developed this invention. It is AA sectional drawing of the state which folded this invention unit. It is a figure which shows the expansion | deployment state of a truss structure. It is the figure which applied this invention to the sleeve signboard. It is the figure which applied this invention to the display assembly fixture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding ladder-type unit 2 Left vertical support | pillar 3 Right vertical support | pillar 4 Horizontal support material 5 Axis coupling part 6 Spacer 7 Outer shell member 8 Truss structure unit 9 Truss reinforcement material 10 Sleeve signboard structure frame 11 Mounting hardware 12 Building wall surface 13 Shelf Board 14 fixture unit

Claims (6)

The left vertical strut 2 and the right vertical strut 3, and a plurality of horizontal members 4 connecting the left and right vertical struts, the horizontal members 4 are provided in a plurality so as to maintain a constant interval in a horizontal state, The horizontal member 4 is pivotally attached at the joint 5 with the left and right vertical columns, and the right vertical column 3 is relatively relative to the left vertical column 2 as the horizontal member 4 rotates upward. Folding ladder shape that constitutes various structures characterized by moving in parallel upward and folding and integrating the left vertical column 2 and right vertical column 3 in close contact to form a single prism Unit 1. The spacer 6 for complementing the level | step-difference part which a right-and-left vertical support | pillar closely_contact | adheres at the time of folding of the folding ladder-type unit 1 was each provided in the left vertical support | pillar 2 lower part and the right vertical support | pillar 3 upper part. Folding ladder unit 1 A long body as an outer shell member 7 having three sides obtained by dividing the external hexagonal column shape into two in the vertical direction is attached to the outside of the left and right vertical columns, respectively, and when folded it becomes a single hexagonal column shape. The folding ladder unit 1 according to claim 1. The left vertical strut 2 and the right vertical strut 3, and a plurality of horizontal members 4 connecting the left and right vertical struts, the horizontal members 4 are provided in a plurality so as to maintain a constant interval in a horizontal state, The horizontal member 4 is pivotally attached at the joint with the left and right vertical columns, and the right vertical column 3 is relatively higher than the left vertical column 2 as the horizontal member 4 rotates upward. A folding ladder-type unit 1 that moves parallel to the direction and can be folded and integrated with the left vertical strut 2 and the right vertical strut 3 in close contact with each other to form a single prism is formed, and the horizontal member 4 And a truss structure construction system by combining a plurality of units 1 each provided with one truss reinforcing member 9 on diagonal lines of all rectangular frames formed by left and right vertical columns.     The left vertical strut 2 and the right vertical strut 3, and a plurality of horizontal members 4 connecting the left and right vertical struts, the horizontal members 4 are provided in a plurality so as to maintain a constant interval in a horizontal state, The horizontal member 4 is pivotally attached at the joint with the left and right vertical columns, and the right vertical column 3 is relatively higher than the left vertical column 2 as the horizontal member 4 rotates upward. One of the left and right vertical struts of a folding ladder unit that moves in parallel to the direction and can be folded and integrated with the left vertical strut 2 and the right vertical strut 3 in close contact to form a single prism. A sleeve signage system that can be attached to a building wall surface 12 via a hardware 11, and used as a sleeve signboard structure frame 10 by expanding the unit as necessary, and can be folded to the wall surface 12 side when not in use.     The left vertical strut 2 and the right vertical strut 3, and a plurality of horizontal members 4 connecting the left and right vertical struts, the horizontal members 4 are provided in a plurality so as to maintain a constant interval in a horizontal state, The horizontal member 4 is pivotally attached at the joint with the left and right vertical columns, and the right vertical column 3 is relatively higher than the left vertical column 2 as the horizontal member 4 rotates upward. The left vertical support column 2 and the right vertical support column 3 are folded and integrated in close contact with each other, and one pair of folding ladder-type units 1 facing each other in an unfolded state. A display assembly fixture that can be folded when not in use as a shelf 13 by passing a plate-like body between left and right horizontal members 4 having the same horizontal reference between both units.

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