JP2003074274A - Expansion gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion gate corresponding to the inclined face smoothly opened/closed without applying load to expansion bellows even if the ground surface of a doorway is inclined. SOLUTION: Upper and lower expansion bellows 23, 24 are vertically arranged between both side posts 21, 22, and the connection points of short-sized bellows rods 33 positioned at both ends of the respective expansion bellows 23, 24 are pivotally fixed to the posts 21, 22 to connect both posts 21, 22 in a freely approaching and separating manner. The lower pivotal connection point of the cross-like bellows rod 30 in the upper expansion bellows 23, and the upper pivotal connection point of the cross-like bellows rod 30 in the lower expansion bellows 24 are pivotally connected to each other by a stopper fitting 25, and one or both of the pivotal connection points of the upper and lower cross-like bellows rods are movable in the lengthwise direction of the stopper fitting 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic gate installed at an entrance / exit, and more particularly to a telescopic gate capable of accommodating an inclined ground plane.

[0002]

2. Description of the Related Art For example, an entrance / exit of a construction site or a garage or the like is provided with an expandable / contractible gate for opening / closing in order to prevent intrusion by persons other than those involved.

A conventional telescopic gate, as shown in FIG.
A large number of bellows rods 1 and short bellows rods 2 are arranged at both ends in a cross shape, and the intersections of the bellows rods 1 with each other and the short bellows rods 2 and the ends and the short bellows rods 2 are arranged.
The ends of the two are pivotally connected to each other to form the telescopic bellows 3,
Place this telescopic bellows 3 between the columns 4 and 5 on both sides,
Slide fittings in which the end intersections of the short bellows rods 2 are pivotally fixed to a fixing metal fitting 6 provided in the middle of the columns 4 and 5, and the upper and lower ends of the bellows rod 1 located at the ends are fixed to the pillars 4 and 5, respectively. 7 is pivotally connected to the column 7 via a long hole so that the columns 8 and 5 on both sides can be moved toward and away from each other by the bellows 3 and the casters 8 can be attached to the lower ends of the columns 4 and 5.
9 is attached, and a locking metal fitting 10 is provided on the movable support column 5.

Such a telescopic gate is arranged at the entrance / exit of a construction site garage, etc., one pillar 4 is fixed to the entrance pillar, etc., and the other pillar 5 is moved.
As shown in FIG. 9A, the expansion / contraction bellows 3 are extended to close the entrance / exit, and as shown in FIG. 9B, the expansion / contraction bellows 3 are folded to open the entrance / exit.

By the way, the ground at the construction site or the entrance / exit of a garage or the like is often an inclined surface, and such an inclined surface may be leveled horizontally after the completion of the construction. Since it remains as it is during the construction period, it is necessary for the expansion / contraction gate installed at such an entrance / exit to have an inclined surface.

[0006]

However, in the conventional expandable gate, the expandable bellows 3 has a large number of bellows rods 1 and short bellows rods 2 arranged at both ends in a cross shape.
Since the intersections and the ends of the bellows rod 1 and the short bellows rod 2 and the ends of the short bellows rod 2 are pivotally connected to each other, the bellows rod 1 does not bend in the vertical direction but expands and contracts only in the horizontal direction. If the telescopic gate is installed on an inclined surface, the movable-side pillar 5 will float up from the ground when the entrance is closed, and the telescopic bellows 3
Not only will it not open and close smoothly, but it will be damaged in a short time.

As described above, the conventional telescopic gate has a problem that it cannot cope with the case where the ground at the entrance / exit is inclined.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sloping gate corresponding to an inclined surface that can be opened and closed smoothly without applying a load to the extensible bellows even if the ground at the entrance and exit is inclined.

[0009]

In order to solve the above problems, the present invention pivotally couples a pair of bellows rods in a cross shape, and a plurality of crossed bellows rods are mutually connected at both ends. Pivotally connected and connected in sequence, the two ends of a pair of bellows rods located at both ends are pivotally connected with two short bellows rods to form an expansion bellows, and these expansion bellows are arranged above and below between the columns. Then, the connection points of the short bellows rods located at both ends of each telescopic bellows are pivotally fixed to the support pillars so that both support posts can be moved toward and away from each other. The pivot connection points of the bellows rod at the upper part of the bellows are pivotally connected to each other by stopper metal fittings, and either or both of the pivot connection connection points of the upper and lower bellows rods are connected to the stopper metal fittings.
This is a structure that allows the stopper metal fitting to move in the length direction.

If the above-mentioned columns on both sides are connected by the upper expansion bellows and the lower expansion bellows, and the vertical pivot connection points of the vertical expansion bellows are connected by the stopper metal fittings, the stopper metal fittings can be used for the expansion and contraction of the vertical expansion bellows during the opening and closing operation. This allows the movable-side support to move up and down while holding the movable-side support vertically with respect to the fixed-side support, which allows the movable-side support to float even when the ground at the doorway is inclined. It will not climb and will follow the inclined surface, so
It will be compatible with inclined surfaces.

In addition, a stopper stopper can be provided in the middle of the support column so that the stopper metal fittings come into contact with each other when the expandable bellows is folded so that the posture of the stopper metal fittings can be vertically changed.

[0012] When the stopper metal fittings are laid down horizontally when the telescopic gate is folded to open the entrance and exit, the stopper stopper changes its posture in the vertical direction,
This prevents the horizontal stopper fittings from interfering with each other and making it difficult to fold the telescopic bellows.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of a telescopic gate according to the present invention, in which an telescopic gate A includes a pair of columns 21 and 22 and the columns 21 and 22.
An upper telescopic bellows 23 and a lower telescopic bellows 24, which are arranged between them to connect the support columns 21 and 22, and end portions of the upper and lower telescopic bellows 23, 24, which correspond to the upper and lower sides, are joined, and the upper telescopic bellows 23 and the lower telescopic bellows 24 are connected. It is composed of a large number of stopper fittings 25 that give a relation to the expansion and contraction of.

Both of the columns 21 and 22 are formed by using square pipes and casters 26 and 27 are attached to the lower ends thereof, and one column 21, which is the fixed side, has a hinge 28 for attaching to a column or the like of an entrance / exit. The other support 22 provided on the movable side has a caster 27 with a brake, and a spiral metal fitting 29 is attached to the middle portion.

The upper expandable bellows 23 and the lower expandable bellows 24 have the same structure, and are pivotally connected in a cross shape with a bolt 31 penetrating the central portion of a pair of bellows rods 30 using square pipes made of aluminum or the like. Then, the upper and lower end portions of a large number of cross-shaped bellows rods 30 are pivotally coupled to each other by bolts 32 and sequentially connected, and the end portions of a pair of bellows rods 30 located at both ends are connected by two short bellows rods 33. By pivotally connecting, it is formed so that it can be expanded and contracted to change between the stretched state shown in FIG. 1 and the folded state shown in FIG. 2 (A).

The upper expandable bellows 23 and the lower expandable bellows 24 are, as shown in FIG.
By connecting the connecting point of the short bellows rod 33 to the fixing metal fitting 34 fixed to the bolt 22 with the bolt 35,
Both columns 21 and 22 are connected so that they can move toward and away from each other.

The stopper metal fitting 25 for connecting the upper and lower expandable bellows 23, 24 is formed by using a vertically long metal plate, and an elongated hole 36 is formed in the upper half portion along the length direction. As shown in C), the lower end is pivotally connected to the upper end connecting point of the bellows rod 30 of the lower expandable bellows 4 with the bolt 32, and the lower end connecting point of the bellows rod 30 of the upper expandable bellows 23 and the long hole 36. And a bolt 32 that is pivotally coupled so as to be vertically movable.

As shown in FIG. 1, the vertical expansion and contraction bellows 2 is provided.
At both ends of 3, 24, the pivot connection points of the bellows rod 30 and the short bellows rod 33 are connected to each other by stopper fittings 25.

The telescopic gate A according to the first embodiment of the present invention has the above-described structure and is arranged at the entrance / exit of a construction site garage or the like, and one support 21 is fixed to the entrance pillar or the like, and the other By moving the column 22, as shown in FIG. 1, the upper and lower expandable bellows 23, 24 are stretched to close the doorway, and as shown in FIG. 1 (A), the upper and lower expandable bellows 23, 24 are closed. The door is designed to be opened when folded.

FIG. 1 shows an example of use of the telescopic gate A when the ground at the doorway is horizontal. When the telescopic bellows 23, 24 are extended and the doorway is closed, the stopper fitting 25 becomes vertical and the upper and lower telescopic bellows 23. , 24 are in the same stretched state, and the movable-side column 22 is vertical.

FIG. 3 shows an example of use in which the telescopic gate A is installed at a doorway where the ground is inclined. One pillar 21 is vertically fixed to a pillar of the doorway and the other pillar 22 is moved. Although the entrance is opened and closed, when closing the entrance from the state where the expansion gate A is folded and the entrance is open, move the movable column 22 to the lower side along the inclined surface as shown in the figure. When the telescopic gate A is stretched, the upper and lower telescopic bellows 23 and 24 are both stretched.

At this time, the upper and lower expandable bellows 23 and 24 extend along the inclined surface while descending, and a phase difference occurs vertically. However, the upper and lower expandable bellows 23 and 24 are expanded and contracted by coupling with the stopper fittings 25. When a relationship is created and the vertical expansion and contraction bellows 23, 24 extend while descending along the inclined surface, the stopper fitting 25 rotates so that the upper end is delayed with the pivotal connection point with the lower expansion and contraction bellows 24 as a fulcrum. By moving and tilting, the vertical bellows 2
The extension states of 3, 24 are equal, and the movable-side support column 22 is allowed to move downward along the inclined surface. Therefore, the movable-side support column 22 moves on the inclined surface in the vertical state. Thus, a smooth extension operation can be obtained without applying a load to the upper and lower expansion bellows 23, 24.

Also, when the telescopic gate A is folded, the vertical telescopic bellows 23, 24 are equally contracted while moving up along the inclined surface in the same manner as described above, and the column 22 can be folded in the vertical state.

Next, FIG. 4 shows a second embodiment of the telescopic gate. The same parts as those in the first embodiment described above will be denoted by the same reference numerals and will not be described. The same applies to the subsequent embodiments.

The telescopic gate A according to the second embodiment is
This is an example in which the upper and lower expandable bellows 23, 24 are set to have a long length when they are extended in order to use the doorway with a wide opening.
In the upper and lower expandable bellows 23 and 24, the central connecting points located above and below each cross-shaped bellows rod 30 are pivotally connected to each other by a large number of intermediate columns 39, and the casters 40 are attached to the lower ends of the intermediate columns 39 located in the middle. Is attached to prevent the expansion and contraction of the upper and lower bellows 23 and 24 from being bent during expansion.

Further, in the second embodiment, the casters 2 attached to the movable support 22 and the intermediate support 39 are used.
The wheels 7 and 40 are compound wheels, and the casters 27 and 40 can be selected in two modes, that is, at right angles and parallel to the direction of expansion and contraction of the expansion / contraction gate A.

5 and 6 show the casters 27 and 40.
The wheel mounting rod 42 having the casters 27 or 40 attached to the lower ends of both ends of the fixed plate 11 fixed to the lower end of the column 22 or the intermediate column 39 is disposed on the fixed plate 41. A central position of the rod 42 is rotatably attached with a bolt 43, and two connecting holes 44 and 45 are attached to the fixing plate 41 about the bolt 43 by 90 °.
And the spring 4 is provided at the bottom of the wheel mounting rod 42.
6 is provided with a locking pin 47 which has elasticity and is always coupled to either of the coupling holes 44 and 45.

Therefore, when the locking pin 47 is locked in the one coupling hole 44 as shown in FIGS. 5 and 6, the wheel mounting rod 42 is attached.
Is arranged at right angles to the extension / contraction direction of the extension gate A, the casters 27 and 40 are movable in the extension / contraction direction of the extension gate, and when the locking pin 47 is locked in the other coupling hole 45, the wheel mounting rod 42 is There is an advantage in that the telescopic gate A is in a posture parallel to the telescopic direction and the bulkiness can be reduced when the telescopic gate A is folded and stacked for transportation.

Next, FIG. 7 shows a telescopic gate A according to a third embodiment.

The telescopic gate A of the third embodiment is also
Both columns 21 and 22 are used for entrances with wide openings
An intermediate strut 49 with casters 48 is arranged between them, and an upper stretchable bellows 23 and a lower stretchable bellows 24 are provided between the one strut 21 and the intermediate strut 49 and between the other strut 22 and the intermediate strut 49, respectively, to vertically expand and contract. Bellows 23, 24
Are connected by a stopper metal fitting 25.

In this third embodiment, the columns 21, 2 are
2 and the intermediate support column 49, in the middle of the vertical expansion and contraction bellows 23,
A stopper stop 50 is provided for projecting to both sides of the attachment 24 and for bringing the upper end portion of the stopper metal fitting 25 into contact with the stopper metal fitting 25 when the expandable gate A is folded so that the posture of the stopper metal fitting 25 is vertically vertical.

In the telescopic gate A, since the stopper metal fitting 25 connecting the upper telescopic bellows 23 and the lower telescopic bellows 24 can be tilted, when the telescopic gate A is folded, the stopper metal fitting 25 is laid down horizontally. When the telescopic gate A is folded in this state, the stopper fittings 25 interfere with each other,
In some cases, the telescopic gate A cannot be completely folded.

Therefore, as shown in FIG.
Stoppers 50 are provided in the middle of the first and second and intermediate columns 49.
If the expansion gate A is folded,
Even if the stopper metal fitting 25 is laid down horizontally, first, the upper end portion of the stopper metal fitting 25 located at the outermost end comes into contact with the stopper stopper 50, the stopper metal fitting 25 changes to a vertical posture, and the subsequent stopper metal fittings. When the upper end of 25 abuts on the vertical stopper metal fitting 25, it changes to a vertical posture, and thus each stopper metal fitting 25 takes a vertical posture, whereby the telescopic gate A can be completely folded. Like

The stopper stopper 50 of the third embodiment can be applied to the above-described first and second embodiments.

FIG. 8 shows a fourth embodiment of the telescopic gate A, in which elongated holes 36 are provided above and below a stopper metal fitting 25 for connecting the vertical telescopic bellows 23 and 24, and the bellows rod 30 of the lower telescopic bellows 24. The upper end connecting point and the lower elongated hole 36 are pivotally connected with the bolt 32, and the lower end connecting point of the bellows rod 30 of the upper telescopic bellows 23 and the upper elongated hole 37 are pivotally connected with the bolt 32 so as to be vertically movable. The lower telescopic bellows 24 is also provided with a function capable of moving up and down.

The stopper fitting 25 of the fourth embodiment can also be applied to the above-described first to third embodiments.

In any of the telescopic gates A of the above-mentioned second to fourth embodiments, the telescopic gate 22 is moved along the inclined surface by moving the movable-side column 22 as in the first embodiment. When A is extended, the upper and lower expansion bellows 23,
24 will be extended together. At this time, the stopper metal fittings 25 connecting the vertical expansion and contraction bellows 23, 24 are rotated and tilted to make the expansion and contraction lengths of the vertical expansion and contraction bellows 23, 24 equal. Of the movable column 22 is allowed to move downward along the inclined surface of the column 22 of the
Will move on the inclined surface in the vertical state, and the expansion / contraction gate A corresponding to the inclined surface can obtain a smooth expansion / contraction operation without applying a load to the upper and lower expansion bellows 23, 24.

[0039]

As described above, according to the present invention, the telescopic bellows are arranged above and below the both side supports, and the connecting points of the short bellows rods located at both ends of each telescopic bellows are pivotally fixed to the post to support the two-sided post. Can be moved closer to and away from each other, and the upper and lower expandable bellows have been combined with the stopper fitting so that it can move in the length direction of the stopper fitting, so when opening and closing the expandable gate,
By making the expansion and contraction of the vertical bellows related to the expansion and contraction of the bellows with the stopper metal fitting, it is possible to move up and down while holding the movable side pillar vertically with respect to the fixed side pillar. Even if it is inclined, the movable-side pillar does not float up from the ground and follows the inclined surface, so that it can be smoothly opened and closed without applying a load to the expandable bellows, and the expandable gate corresponds to the inclined surface.

In addition, since a stopper stopper is provided in the middle of the support column so that the stopper metal fitting comes into contact with the stopper metal fitting when the folding bellows is folded, the stopper metal fitting is provided when the telescopic gate is folded. Even when it is lying down in the horizontal direction, the retractable gate can be completely folded by bringing the stopper fitting into contact with the stopper stopper to take a vertical posture.

[Brief description of drawings]

FIG. 1 is a front view showing a stretched state on a horizontal plane showing a first embodiment of a telescopic gate according to the present invention.

FIG. 2 (A) is a front view showing a folded state of the same.
(B) is a cross-sectional plan view showing the pivoting connection portion of the expansion bellows with respect to the support column, and (C) is an enlarged side view showing the pivoting connection portion of the vertical expansion bellows with stopper fittings.

FIG. 3 is a front view showing a stretched state in which the telescopic gate according to the first embodiment is used for an inclined surface.

FIG. 4 is a front view showing a second embodiment of the telescopic gate according to the present invention in a stretched state on a horizontal plane.

FIG. 5 is a front view showing the structure of a caster mounting portion of the above.

FIG. 6 is a plan view showing the structure of a caster mounting portion in the above.

FIG. 7 (A) is a front view showing a state in which a telescopic gate according to a third embodiment of the present invention is stretched on a horizontal plane, and FIG. 7 (B) is a cross-sectional plan view showing a structure for attaching a stopper stopper to a column.

FIG. 8 is a front view showing a fourth embodiment of the telescopic gate according to the present invention in a stretched state on a horizontal plane.

FIG. 9 (A) is a front view showing a conventional telescopic gate in a stretched state on a horizontal plane, and FIG. 9 (B) is a front view showing the same folded state.

[Explanation of symbols]

21 props 22 props 23 Telescopic bellows 24 Telescopic bellows 25 Stopper bracket 26 casters 27 casters 28 Hinge 29 Locking hardware 30 bellows rod 31 Volts 32 volts 33 short bellows rod 34 Fixing bracket 35 volts 36 long hole 39 Middle pillar 40 casters 41 Fixed plate 42 Wheel mounting rod 43 volts 44 coupling hole 45 coupling hole 46 spring 47 Locking pin 48 casters 49 Middle support 50 Stopper stop

Claims (2)

[Claims] 1. A pair of bellows rods are pivotally coupled to each other in a cross shape, and a large number of these bellows rods are pivotally coupled to each other at both ends to sequentially connect the pair of bellows rods. Both ends are pivotally connected with two short bellows rods to form a telescopic bellows, and the telescopic bellows are arranged above and below between the support columns, and the connecting points of the short bellows rods located at both ends of each telescopic bellows are supported by the post. The two columns are connected to each other so that they can move toward and away from each other. A telescopic gate that is connected to the stopper fitting so that one or both of the above-mentioned pivotal connection points of the upper and lower bellows rods can be moved in the length direction of the stopper fitting. 2. The expansion / contraction according to claim 1, wherein a stopper stopper is provided in the middle of the support column so that the stopper fitting comes into contact with the stopper fitting when the expansion bellows is folded so that the stopper fitting is vertically oriented. Gate.