JPH0446073Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an accordion-type gate that opens and closes by folding.

(Prior Art) There are various types of gates that open and close by folding, but the gate disclosed in Utility Model Publication No. 1598-1988 is known as one of the most representative gates. The gate is provided with pivoting pieces each having a C-shaped cross section at both ends of the upper and lower slats, forming interlocking teeth on the outer peripheral surface of the pivoting pieces, and pivoting the upper and lower slats at the center. to form an X-shaped frame body, and the frame bodies are arranged in parallel, and the pivot piece is rotatably connected to a pivot joint protrusion formed on the inside of the vertical crosspiece, and adjacent frame bodies are It is a folding gate made by interlocking teeth of the pivoting pieces of the body.

Therefore, the mutual frame bodies are regulated by the meshing teeth at both ends, and the orientation of the handle, mounting portion, and vertical beam will not tilt when the gate is opened or closed, allowing smooth opening and closing operations. It is. but,
The frame body of the gate is regulated by interlocking teeth with the pivot joint protrusion of the vertical frame as a bearing, and the upper and lower slats rotate symmetrically with respect to the opening/closing direction, but in the stretched state. As the width of the gate increases and the thickness decreases in the width direction, the distance between the casters attached below the frame body decreases, making the gate extremely unstable. In addition, the meshing teeth are worn out by repeated opening and closing of the gate, causing play in the frame body, resulting in problems in opening and closing operations. Furthermore, since the gate is constructed of an array of vertical bars and vertical lattices, it requires many frame bodies to be connected, making it inconvenient to assemble. It is troublesome to engage the meshing teeth with the pivot pieces of the frame body.

(Problems to be solved by this invention) In this way, one typical accordion-style gate
The gate according to Utility Model Publication No. 58-1598 lacks stability when stretched, causes looseness between each frame element, and requires a large number of man-hours to assemble. This invention was devised with the aim of solving these problems.It is a highly durable gate that simplifies assembly and manufacture, ensures stability when stretched, and can withstand opening and closing operations over a long period of time. This is what we provide.

(Means for solving the problem) The accordion-type gate of the present invention is mainly composed of horizontal bars, and the horizontal bars arranged in parallel at regular intervals are fixed to the vertical bars to form an inner frame body. On the other hand, the outer frame body is constructed so as to sandwich the upper and lower horizontal bars of the inner frame body, and are rotatably supported to each other via a bolt shaft or the like at the center portion. The gate of the present invention is constructed by connecting these inner and outer frame bodies as a set, and the connection is achieved by engagement of the vertical lattice and the vertical bars.
That is, two pivoting protrusions are formed on the vertical lattice toward the back side and are engaged with pivoting pieces formed on the vertical bars, and the pivoting protrusions and the pivoting pieces are connected to each other when the gate is opened and closed. They rotate and slide relative to each other as bearings, and their shapes can be regulated to adjust the degree of stretching and compression.

Hereinafter, one embodiment of the gate according to the present invention will be described in detail based on the drawings.

(Example) FIG. 1 shows one form of the accordion-type gate of the present invention. The gate has a pole 1, a handle stile 2, a mounting stile 3, casters 4, an inner frame body 5,
and an outer frame element body 6 as main elements, and the inner and outer frame bodies 5, 6 can be expanded and contracted by rotating around a pivot 7. By the way, as shown in FIG. 2, the inner frame body 5 is made up of a plurality of horizontal bars 8, 8, etc. arranged in parallel with each other at regular intervals, and vertical bars 9, 9 fixed to both sides. The horizontal bar 8,
A through hole 10 is provided in the vertical direction in the middle of the upper and lower two sheets. Further, the cross section of the vertical beam 9 has a notch on the outside to form a pivot piece 11, and the inner surface 12 has an arc of constant curvature so that the pivot piece 11 functions as a rotation bearing of a pivot protrusion described later. have. on the other hand,
The outer frame body 6 has a through hole 1 in the middle as shown in FIG.
Two upper and lower horizontal bars 13, 13 provided with 0 are combined by vertical bars 14, 14 parallel to each other, and the distance between the horizontal bars 13, 13 is equal to the upper and lower horizontal bars 8, 8 of the inner frame body 5. The vertical cross section of the vertical bar 14 also forms the pivot piece 11.

By the way, as shown in FIG. 4, these inner and outer frame bodies 5 and 6 are rotatably supported by bolts 16 by inserting pipes 15 as bearings into the through holes 10 and 10, and are combined into one set. They are connected to each other in an accordion style via a vertical grid 17. That is, the vertical lattice 17 has the pivoting protrusions 18, 1 on the back side thereof.
8, the outer surface of the pivoting protrusion 18 forms an arc of constant curvature, and is joined to the inner surface 12 of the pivoting piece 11. The vertical lattice 17 is light and has a large hollow part 19 to increase the moment of inertia of area in order to improve bending strength.After being connected to each other via the vertical lattice 17, they are fixed with screws 20. , and a cap 21 is placed over it. or,
The connection between the attachment stile 3 and the pull stile 2, which are connected to the pole 1 via the hinge 23, and the inner and outer frame elements 5, 6 is almost the same as the connection via the vertical lattice 17, but the horizontal The lengths of the beams 8 and 13 are halved and incorporated into the vertical beams 9 and 14, and are rotatably connected to the pivot connecting protrusions 18 formed on the attachment stile 3 and the handle stile 2. Of course, there are also caps 2 on the top of the handle stile 2 and the attachment stile 3.
4 to prevent rainwater from entering.

The accordion type gate according to the present invention is constructed as described above, and can obtain the following effects.

(Effects) (1) Although the gate of the present invention connects the adjacent frame bodies 5 and 6 in an accordion style via the vertical lattice 17, the engagement between the pivoting piece 11 and the pivoting protrusion 18 also In the stretched state, one end of the pivoting piece 11 comes into contact with the base 25 of the pivoting protrusion 18, as shown in FIG. 5, and restricts further mutual rotation, that is, stretching. This prevents the distance between both vertical grids 17, 17 from decreasing. Similarly, when the door is fully closed, the handle stile is regulated in a straight line with the door stile, making it easy to lock the door. By ensuring the distance between the two, the stability of the gate in the stretched state can be improved.

(2) On the other hand, in the contracted state, the pivot piece 11 comes into contact with the opposite side of the root base 25 of the pivot protrusion 18, as shown in FIG. The bodies 5, 6 are all uniformly folded and stretched.

(3) Each frame body connected in a plain bearing state is
The connection part has little wear and can withstand long-term opening and closing.
It is very stable with no wobbling.

(4) Furthermore, the assembled body 5 of the present invention is mainly composed of horizontal bars, and is easy to assemble, and can accommodate various design preferences by changing the combination form and shape of the horizontal bars 8. becomes possible.

[Brief explanation of the drawing]

Figure 1 shows one of the accordion-style gates according to the present invention.
An overall view is shown in the example, and Fig. 2 shows the inner frame element that constitutes the gate, Fig. 3 shows the outer frame element, and Fig. 4 shows the connection between these frame elements and the vertical lattice. Fig. 5 shows the connecting part when the gate is stretched out, and Fig. 6 shows the connecting part when the gate is compressed. 1...pole, 2...handle stile, 3...attachment stile,
4... Caster, 5... Inner frame body, 6... Outer frame body, 7... Pivot, 8, 13... Horizontal beam, 9,
14... Vertical beam, 10... Through hole, 11... Pivoting piece, 12... Inner surface, 15... Pipe, 16...
Bolt, 17... Vertical lattice, 18... Pivotal connection part, 2
1, 24... Cap, 23... Hinge, 25...
Root group.

Claims (1)

[Scope of utility model registration request] An inner frame body made up of a plurality of horizontal bars assembled into a vertical bar, and an outer frame body made up of two upper and lower horizontal bars and also assembled into a vertical bar, are pivoted freely in the center of each other. The vertical beam has a pivot piece having an inner surface having an arc of constant curvature, while a pivot protrusion having an outer surface having an arc of constant curvature is formed on the back side. An accordion-type gate door constructed by rotatably connecting the adjacent inner and outer frame bodies to each other through a vertical lattice by inserting the pivoting protrusions into the pivoting pieces of the vertical beams.