JP3232527B2 - Folding gate and unit for folding gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable gate that is temporarily installed at a doorway of a construction site or the like during a construction period, and to a foldable gate unit for forming such a foldable gate.

[0002]

2. Description of the Related Art As shown in FIG. 18, in a conventional foldable gate, a plurality of frame-shaped pillars 51 having a substantially C-shaped cross section are arranged such that their openings 52 face the same side. A slide plate 58 is provided in each frame-shaped support 51.
Are arranged. The slide plate 58 is a frame-shaped support 5
The inner wall 1 is movable up and down by being guided by the inner wall. The first and second arms 53, 51
A breath 56 constituted by 54 is arranged. The first and second arms 53 and 54 intersect and are rotatable about a rotation support shaft 55 at the intersection. The breath 56 is connected to an adjacent breath 56 in a chain. More specifically, in the chain state, the first arm 53
Is overlapped with the upper end of the second arm 54 of the adjacent breath 56 and is rotatably supported by the upper rotation support shaft 59. The upper rotation support shaft 59 is fixed to the slide plate 58, and the upper ends of the first and second arms 53 and 54 move with the movement of the slide plate 58. The lower end of the second arm 54 is adjacent to a breath 56
Are overlapped with the lower end of the first arm 53 and rotatably supported by a lower pivot 60. The lower rotation support shaft 60 is fixed to a lower portion in the frame-shaped support column 51 (however, the first and second arms 53, 52 supported by the frame-shaped support columns 51 disposed at both ends of the folding gate). 54
Are not overlapped because there is no further adjacent breath 56).

When the foldable gate having such a structure is stretched to close the entrance, each frame-shaped support 51 is extended.
As the distance between them increases, the first and second
The arms 53 and 54 rotate around a rotation support shaft 55. At this time, each of the first and second
Since the arms 53 and 54 are fixed at the lower side, only the upper sides of the first and second arms 53 and 54 are lowered together with the slide plate 58. Conversely, when the foldable gate is folded to open the entrance, the upper sides of the first and second arms 53 and 54 move up together with the slide plate 58. In such a foldable gate, the first and second arms 53 and 54 adjacent to each other are overlapped at the upper end and the lower end and connected one after another in a chain, so that the whole constitutes one magic hand-shaped frame. It can be said that there is. Therefore, once a folding gate of a predetermined length is constructed, it is cut off in the middle and a new frame-shaped support 51 and a breath 56 are added between them, or on the contrary, a part of the breath 56 is removed. Was extremely cumbersome and in practice the task was difficult.

[0004]

Problems to be Solved by the Invention By the way, the width of the entrance of a construction site or the like varies. Therefore, it is necessary to prepare folding gates having different lengths depending on the width of the entrance. However, as described above, since it is difficult to adjust the length with the conventional folding gate, the manufacturer prepares a plurality of folding gates with different lengths in order to respond to the needs of the user, It was necessary to make a foldable gate on demand. Further, even if the foldable gate used at one construction site is to be used as an entrance at another site along with the movement of the construction site, it cannot be used unless the width of the entrance at the new site is the same. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a folding gate which can be easily assembled and whose length can be easily adjusted, and a unit for such a folding gate. is there.

[0005]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 has a frame-like cross-sectional shape that is open on one side, and the open portion that is open extends in the vertical direction. A pair of frame-shaped supports, a guide member arranged in each of the two frame-shaped supports and moving along a vertically extending wall surface in the both frame-shaped supports, and a pair of arms formed by intersecting both arms A brace rotatably supported by a rotation support shaft at the intersection, wherein the two frame-shaped supports are arranged at predetermined intervals, and long holes extending in the up-down direction are formed on opposing outer walls of the two frame-shaped supports. And one end side of each of the arms is rotatably fixed to the frame-shaped column, and the other end side is rotatably fixed to each of the guide members to form a folding gate unit. , The same frame adjacent to multiple units The gist is that the long holes of the columns are arranged so as to overlap, and the guide members in the adjacent frame-shaped columns are connected to each other through the same long holes.
According to the above configuration, a plurality of foldable gate units are arranged in series such that the long holes of the adjacent frame-shaped columns overlap, and the guide members facing each other are connected through both long holes, so that the breath is connected. A gate is built. For example, when lengthening the gate, the connection between the guide members between the units is released, and a new unit is interposed so that the long holes of the adjacent frame-shaped columns overlap. Then, the opposing guide members are connected again through the two elongated holes. Conversely, when shortening, disconnect the guide members between the units,
A predetermined number of units are removed, and the long holes of the frame-shaped columns on both sides of the removed unit are arranged so as to overlap, and the opposing guide members are connected to each other through the long holes. According to a second aspect of the present invention, in order to achieve the above object, in addition to the configuration of the first aspect, an open portion and an outer wall of the frame-shaped support are formed at positions facing each other. The gist of what has been done. With this configuration, in addition to the operation of the first aspect of the present invention, the open ends of the two frame-shaped columns are opposed to each other, and the arm disposed between the two frame-shaped columns is accommodated within the width of the frame-shaped column. It becomes possible.

In order to achieve the above object, a third aspect of the present invention provides a pair of frame-shaped columns having a frame-shaped cross-section with one side open and having the open portion extending vertically. And a guide member which is disposed in each of the frame-shaped supports and moves along a vertically extending wall surface in the frame-shaped supports, and a pair of arms, the two arms intersect and rotate at the intersection. A breath supported rotatably by a support shaft, the frame-shaped posts are arranged at a predetermined interval, and long holes extending in the up-down direction are penetratingly provided on opposing outer walls of the frame-shaped posts, One end of each of the arms is rotatably fixed to the frame-shaped support, and the other end is rotatably fixed to the guide member. The guide member has the frame-shaped support closest to each other. From the state to the furthest state. Arm and its gist to lift while facing the long hole and rotates around the rotation support shafts. According to such a configuration, in addition to the operation of the first aspect, if the scaffold plate supported by the scaffold bracket is removed, the arm can be turned in the horizontal direction so as not to protrude toward the passage. To achieve the above objectives,
According to a fourth aspect of the present invention, in the third aspect of the present invention, the open portion and the outer wall of each of the frame-shaped columns are formed at positions facing each other. With this configuration, in addition to the function of the third aspect of the present invention, the open ends of the two frame-shaped columns are opposed to each other, so that the arm disposed between the two frame-shaped columns is accommodated within the width of the frame-shaped column. It becomes possible.

[0007]

According to the first and third aspects of the present invention, a plurality of foldable gate units are arranged in series, and the opposing guide members are connected to each other through the long holes of the adjacent frame-shaped pillars, thereby forming the same unit. Can be connected to form a gate, so that the length of the gate can be easily adjusted by attaching and detaching the unit. According to the second and fourth aspects of the present invention, in addition to the effects of the first or third aspect, since the open portions of the two frame-shaped columns are opposed to each other, the arms do not protrude from the width of the frame-shaped columns. It can be placed between them, and a gate with a simple structure can be constructed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A folding gate according to an embodiment of the present invention will be described below. As shown in FIG. 1, the unit 11 constituting the foldable gate includes a pair of frame-shaped pillars 12 and a breath 13 disposed therebetween. As shown in FIGS. 2 and 3, the frame-shaped support 12 includes an outer wall 15 extending vertically and a pair of guide walls 16 extending from both edges of the outer wall 15 in a direction orthogonal to the outer wall 15. To form a frame-like body surrounded from three sides.
The vertically extending edges of both guide walls 16 are bent inward each other to form a bent portion 18. The frame-shaped support 12 has a substantially C-shaped cross section by the outer wall 15, the two guide walls 16 and the bent portion 18. An opening 17 is formed between the two guide walls 16. As shown in FIG. 1, both frame-shaped supports 12 are arranged such that the openings 17 face each other. As shown in FIG. 2, a breath mounting hole 19 is provided in the lower part of each of the guide walls 16. A long hole 20 extending in the up-down direction is provided in the upper portion of the outer side wall 15. Outer wall 15
A column mounting hole 21 is provided in the upper part of the hole and further above the elongated hole 20. A unit fixing hole 22 is provided at the center of the outer side wall 15. A mounting hole 23 such as a caster is formed in a lower portion of the outer side wall 15. FIG.
As shown in FIG.
At the upper and lower ends of the outer surface, support brackets 24 are formed to protrude laterally. The support fitting 24 supports a panel (not shown).

A slide plate 25 as a guide member is disposed inside the frame-shaped columns 12. As shown in FIG. 4, FIG. 6, FIG. 8, and FIG.
Is an alloy plate body having a channel-like cross section,
Back plate 25a and an arm support plate 2 extending from both edges of the back plate 25a in a direction orthogonal to the back plate 25a.
5b. The back plate 25a is the outer wall 1
5, the arm support plate 25 b faces both guide walls 16. A bolt mounting hole 26 is provided in the upper portion near the center of the rear plate 25a. A notch 27 is formed below the bolt mounting hole 26. The notch 27 is provided so that a first arm 31 described later does not interfere with the slide plate 25. A pair of arm mounting holes 28 are formed in the both arm support plates 25b near the lower portion thereof. The slide plate 25 is guided by the outer wall 15 of the frame-shaped support 12 and the three walls of the two guide walls 16 so as to be vertically movable. Further, it is held by a bent portion 18 formed on the guide wall 16 so as not to fall off from the opening 17.

As shown in FIG. 5, the breath 13 has a first arm 31 and a second arm 32. The arms 31 and 32 are formed of a frame-shaped elongated body made of an alloy and having a rectangular cross section. The arms 31 and 32 are crossed at the center, and at the intersection, as shown in FIG.
a and a nut 33b so as to be rotatable. As shown in the figure, a hook fixing bracket 35 is suspended from the support bolt 33a, and a hook 37 for placing a bar is mounted on a mounting pipe 36 of the bracket 35. As shown in FIG. 12, the upper ends of both arms 31, 32 are rotatably fixed to the slide plate 25. The fixed state will be described in more detail with reference to FIGS. A slide plate mounting hole 38 is provided through the upper ends of the arms 31 and 32. The upper ends of the arms 31 and 32 are inserted into the opening 17 between the arm support plates 25b of the slide plate 25. As shown in FIGS. 4, 6, and 9, the arm mounting hole 28 and the slide plate mounting hole 38 are pushed through a pin 40, and the pin 40 is prevented from coming off by a not-shown split pin. As a result, the upper ends of both arms 31 and 32 are rotatably fixed to slide plate 25.

As shown in FIG. 12, both arms 31, 32
Is rotatably fixed to a lower portion of the frame-shaped support 12. The fixed state will be described in more detail with reference to FIG. A guide wall mounting hole 41 is provided through the lower end of each of the arms 31 and 32. The lower ends of the arms 31 and 32 are inserted from the openings 17 between the guide walls 16 of the frame-shaped support 12. As shown in FIG. 7, bolts 43 a are pushed through the breath attachment holes 19 of both guide walls 16, and nuts 43 are provided.
The bolt 43a is supported on both guide walls 16 by b. The bolt 43a is inserted into the guide wall mounting hole 41 of both arms 31, 32. As a result, the lower ends of the arms 31 and 32 are rotatably fixed to the guide walls 16. FIG. 7 is a view showing a state in which the first arm 31 is fixed to both guide walls 16, and a view showing a state in which the second arm 32 is fixed to both guide walls 16 is symmetrical to FIG. Illustration is omitted because it appears.

Next, a procedure for connecting a plurality of units 11 configured as described above to construct a foldable gate will be described. As shown in FIG. 9, the outer walls 15 of the frame-shaped columns 12 of the adjacent units 11 are arranged so as to be back to back. Then, the slide plates 25 arranged in the respective frame-shaped columns 12 are fixed to each other by the bolts 45a and the nuts 45b through the elongated holes 20. As a result, the breaths 13 of each unit 11 are connected in a chain. As shown in FIG. 13, the outer wall 15 is formed through a unit fixing hole 22 formed in the center of the outer wall 15.
They are fixed with bolts 45a and nuts 45b. As a result, the adjacent units 11 are connected in series, and the breaths 13 of each unit 11 are connected to each other via the slide plate 25. FIG.
As shown in FIGS. 3 to 15, the unit fixing hole 2 of the frame-shaped support 12 on the front side of the unit 11 disposed on the outermost side.
A handle 46 used when the gate is opened and closed is attached to 2. A caster 47 is mounted in a caster mounting hole 23 formed near the lower portion of the outer wall 15. The caster 47 includes a main body 48 and wheels 49,
As the folding gate opens and closes, the wheels 49 travel on the road surface. A clamp device 50 is provided on the frame-shaped support 12 on the rear side of the unit 11 disposed on the innermost side.
1 and the unit fixing hole 22. The folding gate is fixed to the column P by the clamp device 50.

Next, the operation of the folding gate according to the present embodiment will be described. As shown in FIG. 14, when the gate is folded and the entrance is opened, the first and second arms 31, 32 of the breath 13 of each unit 11 are vertically overlapped. The two frame-shaped posts 12 constituting the unit 11 are brought into a very close state (the mounting pipe 36 of the hook fixing bracket 35 is interposed between the two frame-shaped posts 12, so that the two frame-shaped posts 12 are completely adhered to each other. At this time, the slide plate 25 in each frame-shaped column 12 is arranged at the uppermost position of the long hole 20. Next, when the handle 47 is stretched with the handle 47 in order to close the doorway, the interval between the frame-shaped columns 12 of each unit 11 is widened, and the first and second arms 31, 32 are each extended.
Rotates around the support bolt 33a. As shown in FIG. 12, the frame-shaped support 12 at the position P1 is expanded and
When it moves to the position, both arms 31 and 3 follow this motion.
2 has a frame-like support 12 together with a slide plate 25.
Descend inside. Since both arms 31 and 32 of each unit 11 are connected by a slide plate 25 to form a kind of link device, as the gate is extended, the expanding speed of both frame-shaped columns 12 of each unit 11 is synchronized. I do. Further, the rotational speeds of both arms 31, 32 of each unit 11 are also synchronized. In the state shown in FIG. 14, the slide plate 58 in each frame-shaped support 12 located at the uppermost position of the elongated hole 20 moves in the lower direction of the elongated hole 20 by expanding the frame-shaped support 12. 13 and 15, the bolt 45a connecting the adjacent slide plates 25 abuts on the lower edge of the long hole 20, and the gate does not expand any more, and the entrance is closed. Then, a panel (not shown) is attached to the support metal fitting 24, and a gap (not shown) is set on each hook 37 to complete the gate.

With this configuration, the foldable gate and the unit 11 of the present embodiment have the following effects. (1) Since the folding gate is constructed by arranging a plurality of units 11 in series, the length of the folding gate can be easily adjusted by adding or removing the unit 11. (2) The units 11 are planned, and any of the units 11 can be equipped with the handle 46, the casters 47, and the clamp device 50. Therefore, there is no need to prepare units of various patterns. As a result, cost reduction in the manufacturing stage can be realized. (3) Since the slide plate 25 essential for the rotation of the first and second arms 31 and 32 is independent for each unit 11, the slide plate 25 can be unitized, and the slide plate of the adjacent frame-shaped support 12 can be formed. 25 are connected so that the breaths 13 are connected in a chain. As described above, since each slide plate 25 has independence and connectivity, it is possible to construct an excellent gate which has not existed conventionally. (4) Since the openings 17 of the pair of frame-shaped columns 12 are arranged to face each other, the linear first and second arms 31,
32 can be used. That is, when the opening 17 is not opposed, both ends of the straight first and second arms 31 and 32 cannot be inserted into the opening 17. Since the first and second linear arms 31 and 32 can be used, a gate having excellent strength and cost can be provided without complicating the shape of the members. (5) Breath 1 by connecting slide plate 25
3 are connected in a chain, and the back-to-back frame-shaped supports 12 are connected at the same time as the slide plate 25 is connected, which greatly facilitates the gate assembling work. Further, the outer walls 15 are bolted to each other through unit fixing holes 22 formed in the outer walls 15 of the frame-shaped support 12.
a and the nut 45b, the adjacent units 11 are securely connected to each other. (6) The frame-shaped support 12 has a bent portion 18 formed therein.
Therefore, the slide plate 25 does not fall out of the opening 17 in the frame-shaped support 12.

The present invention is not limited to the above-described embodiment, but can be embodied with the following modifications. (1) In the above embodiment, as shown in FIG. 9, two slide plates 25 are arranged by arranging the outer walls 15 of the frame-shaped columns 12 of the adjacent units 11 to be back to back.
Bolts 45a and nuts 45b
Was to be fixed by. As shown in FIG. 16, a pin 63 is protruded at the position of the bolt mounting hole 26 of one slide plate 25, and is pushed through the bolt mounting hole 26 of the opposing slide plate 25 as shown in FIG. It may be. This is because even in this case, the pins 63 and the bolt mounting holes 26 are engaged, and the breaths 13 of the units 11 are connected in a chain.
Further, since there is no work of tightening the bolt 45a and the nut 45b, the work of assembling the gate can be further simplified. Also,
As shown in FIG. 11, the frame-shaped columns 12 of the adjacent units 11 are tightened and connected by the bolts 45a and the nuts 45b via the unit fixing holes 22, so that even in such a configuration, the units 11 are connected to each other. Is possible. (2) In the above embodiment, the slide plate 25 is the first
And the upper ends of the second arms 31 and 32. However, this is instead reversed to the first and second arms 31,3.
2 may be attached to the lower end side. In this case, the position of the long hole 20 formed in the outer wall 15 of the frame-shaped support 12 also needs to be changed downward. (3) In the above embodiment, the openings 17 of the pair of frame-shaped columns 12 of the unit 11 are arranged to face each other. However, the opening 17 may be directed to the side (the front and back sides of the gate). However, in that case, the first
In order to insert both ends of the second arms 31 and 32, the shapes of the arms 31 and 32 need to be changed (for example, both ends are bent). Further, the position of the long hole 20 also needs to be changed. (4) The shape of the slide plate 25 is not limited to the above embodiment. For example, guide wheels, grooves and the like may be provided depending on the inner peripheral surface of the frame-shaped support 12. (5) In the above embodiment, the frame-like columns 12 are connected to each other by the bolts 45 a and the nuts 45 via the unit fixing holes 22.
It was firmly connected by tightening with b. However, this connecting means may not be necessary. (6) The shape and length of the long hole 20 can be freely set. For example, in order to reduce the weight, it may be formed over the entire vertical length of the frame-shaped support 12. Also, slide plate 2
The width of the long hole 20 can be freely set irrespective of the size of the slide plate 25 as long as the 5 does not fall off from the frame-shaped support 12.

The technical idea of the present invention that can be grasped from the above embodiment will be described below. (1) A folding gate provided with a second connecting means for connecting adjacent frame-shaped supports at positions not obstructing movement of the guide member. (2) The unit for a foldable gate or the foldable gate, wherein the guide member is provided in the frame-shaped support so as not to fall off.

[Brief description of the drawings]

FIG. 1 is a perspective view of a folding gate unit according to an embodiment of the present invention.

FIG. 2 is a partially broken perspective view of a frame-shaped support of the unit according to the embodiment.

FIG. 3 is a side view of the same frame-shaped support.

FIG. 4 is an exploded perspective view illustrating mounting of an arm on a slide plate.

FIG. 5 is a front view of a breath.

FIG. 6 is a partial plan view of the same frame-shaped support, slide plate, and arm.

FIG. 7 is a partial sectional view of the same frame-shaped support and arm.

FIG. 8 is a side view of the slide plate to which the arm tip is attached.

FIG. 9 is an explanatory diagram illustrating a state in which adjacent frame-shaped columns are connected at a position of a long hole.

FIG. 10 is an enlarged side view of an intersection of arms.

FIG. 11 is an explanatory diagram illustrating a state in which adjacent frame-shaped columns are connected at a unit fixing hole position.

FIG. 12 is an explanatory diagram illustrating an open / closed state of the folding gate according to the present embodiment.

FIG. 13 is a perspective view of the same folding gate.

FIG. 14 is a front view of the same foldable gate in a folded state.

FIG. 15 is a front view of the same folding gate in an extended state.

FIG. 16 is a perspective view of a slide plate according to another embodiment.

FIG. 17 is an explanatory view illustrating a state in which adjacent frame-shaped columns are connected at elongated hole positions in another embodiment.

FIG. 18 is a perspective view of a conventional folding gate.

[Explanation of symbols]

11: foldable gate unit, 12: frame-shaped support, 1
DESCRIPTION OF SYMBOLS 3 ... Breath, 17 ... Opening part, 20 ... Slot, 25 ... Slide plate as a guide member, 31 ... 1st arm, 3
2 ... second arm, 33a ... support bolt as rotation support shaft.

Claims (4)

(57) [Claims] 1. A pair of frame-shaped pillars having a frame-shaped cross-section with one side open and having an open portion extending in the vertical direction;
A guide member that is arranged in each of the frame-shaped supports and moves along a vertically extending wall surface in the frame-shaped supports, and a pair of arms; A brace rotatably supported by the frame-shaped support, and the frame-shaped supports are arranged at a predetermined interval, and a long hole extending in the up-down direction is penetrated through the opposing outer walls of the frame-shaped supports. One end of both arms is rotatably fixed to the frame-shaped support, and the other end is rotatably fixed to the guide member, respectively, to constitute a folding gate unit. A foldable gate, wherein the elongated holes of adjacent frame-shaped columns are arranged so as to overlap with each other, and the guide members in the adjacent frame-shaped columns are connected to each other through the elongated holes. 2. The foldable gate according to claim 1, wherein an open portion and an outer wall of each frame-shaped column are formed at positions facing each other. 3. A pair of frame-shaped pillars having a frame-shaped cross-sectional shape with one side open and having the open portion extending vertically.
A guide member that is arranged in each of the frame-shaped supports and moves along a vertically extending wall surface in the frame-shaped supports, and a pair of arms; A brace rotatably supported by the frame-shaped support, and the frame-shaped supports are arranged at a predetermined interval, and a long hole extending in the up-down direction is penetrated through the opposing outer walls of the frame-shaped supports. One end of each arm is rotatably fixed to the frame-shaped support, and the other end is rotatably fixed to the guide member, and the guide member is in a state where the frame-shaped support is closest to each other. A folding gate unit that moves up and down while facing the elongated hole when the arms rotate about the rotation support shaft in a state where the arm is most separated from the unit. 4. The unit for a foldable gate according to claim 3, wherein the open portion and the outer wall of each frame-shaped support are formed at positions facing each other.