JP2000337063A - Expansion gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lengthen an expansion gate by reducing the rate of hanging of an extended a door, in the expansion gate being called the hanger type in which the door having a pantograph expansion mechanism is suspended on a gate post or the like, without the provision of wheels and caster devices for traveling on a passage part. SOLUTION: A door 3 having a pantograph expansion mechanism 2 has one side suspended on a fixed part 6 such as a gate post, and is freely expanded and contracted between an expanded width to which the pantograph expansion mechanism 2 is expanded and a folded width L to which the pantograph expansion mechanism 2 is folded. Caster devices 8 are provided only at the bottom of the door 3 located within the range of the folded width L when the door 3 is expanded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic gate having a pantograph telescopic mechanism, and in particular, does not provide a wheel device at a lower portion of a door body whose passage portion can be freely opened and closed.
It is related to a telescopic gate commonly called a hanger type.

[0002]

2. Description of the Related Art Hanger-type telescopic gates do not require full-scale construction, such as correcting irregularities in passages or laying rails to guide the gates. Widely used because it can be designed. Particularly in recent years, the pavement of the road surface including the passage has become a wide variety of pavement methods such as wood brick pavement, interlocking block pavement, and the like, or color pavement, and a caster device provided on the door body. However, there is a problem that a wheel mark of the wheel rubber of the caster device remains on the pavement surface. However, in these hanger-type telescopic gates, the caster device does not travel along the passage, and such a problem does not occur. Things.

However, in a hanger type telescopic gate having a pantograph telescopic mechanism, a link member constituting the pantograph telescopic mechanism is pin-coupled, and the link member rotates about the pin coupling part, so that a clearance is provided at the pin coupling part. Doors suspended on fixed parts such as gate posts are difficult to apply because the door stop ends hang down under their own weight and in doors with a wide opening, the door stop ends of the door contact the road surface. Met.

[0004] As a means for eliminating the hanging of the end of the door that is suspended on the gate post or the like in this type of telescopic gate, the present applicant has inclined the link members in opposite directions at the front and rear positions to intersect the link members. In a telescopic gate where the position is pin-joined and one pin shaft is integrally fixed to the vertical lattice provided before and after the link member and the other pin shaft is slidably fitted, It has been proposed that the distance between the pin axes of the link member in the upper part be smaller than the distance between the pin axes of the link member in the lower part of the door body (Japanese Patent Laid-Open No. 9-177).
455).

[0005]

In the case where the distance between the pin axes of the link member at the upper part of the door body is smaller than the distance between the pin axes of the link member at the lower part of the door body, when the pantograph telescopic mechanism is extended. Due to the balance between the warpage of the door body and the sagging of the elongated door body due to its own weight, the door body is maintained in a horizontal state, and a remarkable effect is recognized.

However, when the length of the door is further lengthened in the telescopic gate having such a configuration, drooping due to its own weight increases rapidly. To avoid this, the distance between the pin axes of the link member in the upper part and the distance in the lower part are reduced. When the distance between the pin axes of the link members is increased, when the door body is contracted, the adjacent link members cannot be folded in a state of being close to each other in parallel, and the aesthetic appearance in the folded state is significantly reduced, and the folding width is reduced. There was a problem that the site became too large to make effective use of the site.

[0007]

The inventors of the present invention have made intensive studies in view of such circumstances, and as a result, have suspended one side of a door body having a pantograph expansion / contraction mechanism on a fixed portion such as a gate post. The door body can be extended and contracted between the extension width where the extension mechanism is in the extended state and the folding width where the pantograph extension mechanism is in the folded state, and only at the lower part of the door body located within the folding width in the extended state of the door body. It was recognized that the intended purpose could be achieved by providing the caster device, and the present invention was completed.

Further, in the telescopic gate of the present invention, the caster device is provided only on the door stop end side of the lower portion of the door located within the range of the folding width in the extended state of the door, and By arranging at the end, the length of the door located closer to the door stop than the caster device can be minimized, so that the door can be prevented from hanging down.

[0009]

According to the present invention, since the caster device is provided only at the lower part of the door located within the range of the folding width in the extended state of the door, the position where the door is supported in the cantilevered state is located at the gate post. And the like, it shifts to the position where the caster device is provided, and it is possible to prevent the large door from hanging around the fixed portion.

Furthermore, no caster device is provided below the door that opens and closes the passage, and there is no need to adjust the unevenness of the passage, and despite the provision of the caster device,
It can be applied to all forms of paved surfaces as in the past. The position where the caster device is provided is the lower part of the extended door body located within the range of the folding width of the door body, the door body is always located within the range of the normal folding width, and the folded state. Because the door body is housed in a part surrounded by a fence or in a door pocket provided near the aisle, even if a caster device is installed in this part, wheel marks can be easily seen from the outside There is no one.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be specifically described with reference to examples. 1 to 3 show a first embodiment of the present invention. In the drawings, reference numeral 1 denotes a telescopic gate, and the telescopic gate 1 is provided with a door 3 having a pantograph telescopic mechanism 2. The pantograph telescopic mechanism 2 comprises a link member 21 made of an aluminum mold having a length of 30 mm, a width of 16 mm, and a thickness of 1.6 mm, which is tilted in opposite directions.
The two diamond-shaped patterns vertically arranged and surrounded by the link member 21 are arranged so as to be repeated in the left-right direction. The distance between the pin axes in the main link member 21 is 170 m from the upper end to the lower end.
m, 171 mm, 345 mm and 174 mm, the pin shaft 22 is loosely fitted and fixed at the intersection of the front and rear link members, and the length and width are 22 m outside the front and rear link members 21.
A vertical lattice 23 having a U-shaped cross section made of an aluminum material having a thickness of 1.6 mm and a thickness of 1.6 mm is provided.

The pin shaft 22 at the second intersection position from the top where the link member 21 and the vertical lattice 23 intersect is projected outward and forward and connected to the vertical lattice 23, and the pin shaft 22 at the intersection position of the upper end and the lower end. 22 is projected outward and forward and its tip is slidably fitted to a U-shaped portion of the vertical lattice 23 via a guide roller (not shown).

A hanging frame 4 is provided at the hanging end of the door body 3 and a door stopping frame 5 is provided at the door stop end. The pin shaft 22 of the link member 21 is attached in the same manner as the vertical lattice 23. Have been. In the figure, reference numeral 6 denotes a hanging column, which is a fixed portion, to which the hanging frame 4 is fixed. Reference numeral 7 denotes a door stop support, which can be locked with a lock device provided on the door stop frame 5.

The extended width of the extended state where the door body 3 shown in FIG. 1 is maximized is 4.84 m, the distance between adjacent vertical lattices 23 is 335 mm, while the folded state of the door body 3 shown in FIG. Is 810 mm. A caster device 8 is provided at the lower portion of the door located within the range of the folding width L in the extended state of the door 3, and in this embodiment, provided at the lower end of the second vertical lattice 23 from the hanging end. Have been.

Since the caster device 8 is provided below the extended door body 3 located within the range of the folding width L, the moving range of the caster device 8 is limited to the range of the folding width L. The range of the folding width L where the caster device 8 rolls is preferably adjusted to a smooth surface by adjusting the unevenness of the road surface with mortar or the like, but it is not necessary to match with the pavement of the road surface such as a passage portion.

FIG. 3 is a partially cutaway sectional view of a portion where the caster device 8 of the first embodiment is provided. The caster device 8 is provided at the lower end of a vertical lattice 23, Both ends of the shaft 81 passing through the lower end of the vertical lattice are supported by bearings 83 fixed on both sides of the vertical lattice 23 via L-shaped fittings 82, and wheels 84 are provided on both sides of the shaft 81. Things.

In the telescopic gate 1, the caster device 8
(A) and the case where the caster device 8 is provided at the lower end of the vertical lattice 23 (B), the degree of droop at the door stop end with respect to the hanging position of the extended door body is determined. As a result of examination, (A) is 100 m
m and (B) were 20 mm, and when the caster device 8 was provided, dripping at the door stop end of the door body 3 was drastically reduced.

The telescopic gate 1 shown in FIG. 4 represents a second embodiment of the present invention, and constitutes a pantograph telescopic mechanism 2, which is made of an aluminum mold having a length of 30 mm, a width of 16 mm and a thickness of 1.6 mm. The link member 21 inclined in the direction is pivotally connected by a pin shaft 22, and two vertically arranged rhombic patterns surrounded by the link member are arranged so as to be repeated in the left-right direction. The distance between the pin axes of the main link member 21 is 170 mm, 171 mm, 345 mm, and 174 from the upper end to the lower end.
mm, the pin shaft 22 is loosely fitted and fixed at the intersection of the front and rear link members 21, and the hanging frame 4 is attached to the hanging end of the door body 3.
A door stop frame 5 is disposed at the door stop end in the same manner as in the first embodiment, and the hanging frame 4 is fixed to the hanging column 6 which is a fixed portion, and the door frame 5 is engaged with the door supporting column 7. Thus, the telescopic gate 1 was constructed in which the opening width of the extended door body 3 was the same as that of the first embodiment.

The folded width L of the door 3 in the folded state is 8
The support member 24 is provided on the door 3 at a position of about 680 mm from the suspension side when the door 3 is extended, which is 10 mm. The support member 24 has a length and width of 22.
mm, a 1.6 mm thick prismatic aluminum mold member, and a pair of front and rear link members 21,
21. The pin shaft 22 at the upper intersection position where the link member 21 and the support member 24 intersect is inserted into the shaft hole provided in the support member 24, and the pin shaft 22 at the lower intersection position is formed in the middle of the support member 24. A caster device 8 is provided at a lower end portion of the support member 24 so as to pass through a vertically extending elongated hole.

In the telescopic gate 1 of the second embodiment, the case where the caster device 8 is not provided (A) and the case where the caster device 8 is provided at the lower end of the support member 24 (B) are extended. As a result of examining the degree of droop at the door stop end with respect to the hanging position of the door body 3, (A)
Is 100 mm and (B) is 20 mm, and dripping at the door stop end of the door body 3 can be drastically reduced as in the first embodiment.

[0021]

According to the present invention, there is provided a telescopic gate called a hanger type in which a door for opening and closing a passage is suspended on a gate post or the like so that unevenness of the passage is not adjusted. This makes it possible to lengthen this kind of telescopic gate.

[Brief description of the drawings]

FIG. 1 is an elevational view showing a telescopic gate according to a first embodiment of the present invention in an extended state of a door body.

FIG. 2 is an elevational view showing a telescopic gate of the first embodiment of the present invention in a state where the door body is folded.

FIG. 3 is an enlarged vertical sectional view showing a main part of the telescopic gate according to the first embodiment of the present invention.

FIG. 4 is an elevational view of a door extension state showing a telescopic gate according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Telescopic gate 2 Pantograph telescopic mechanism 3 Door body 4 Hanging frame 5 Frame per door 6 Hanging post (fixed part) 7 Post per door 8 Caster device L Folding width

Claims (2)

[Claims] 1. A door provided with a pantograph telescopic mechanism is suspended on one side of a fixed part such as a gate post, and a width between an extension width where the pantograph telescopic mechanism is in an extended state and a folding width where the pantograph telescopic mechanism is in a folded state. An extendable gate, wherein a caster device is provided only at a lower portion of the door located within a range of a folding width when the door is in an extended state. 2. The telescopic gate according to claim 1, wherein the caster device is provided only on the door stop end side of the lower part of the door located within the range of the folding width in the extended state of the door.