JPH07127332A - Storing device of push-pull chain for expansion gate door - Google Patents

Abstract

PURPOSE:To make it possible to store a push-pull chain which is hauled in, in an opening and shutting drive mechanism of an expansion gate door having such a system that a sprocket is rotated to push forward or haule in a push-pull chain and that a free end frame of the expansion gate door mounted to the front end of the pushpull chain is pushed or pulled. CONSTITUTION:A linear guide group 9b is combined with semi-circular guide groups 9a and 9c to form a shallow circinate guide 9, and a push-pull chain 7 pulled in by clockwise rotation of a sprocket 8 is slid in such as arrows (a)-(g) and is stored. When length size L of the linear guide group 9b is varied, storage capacity can be varied by using the same semi-circular guide groups.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion / contraction gate that is driven to open / close by a push-pull chain, and a device for accommodating the extension part of the push-pull chain when the expansion gate is stored and a passage is opened. In particular, the present invention relates to a push-pull chain storage device improved so as to be easily adapted to different lengths of push-pull chains in expandable gates of various specifications.

[0002]

2. Description of the Related Art Telescopic gates are outdoor equipment widely used in houses and garages. FIG. 5 shows a conventional example of an expansion / contraction gate, in which a pair of fixed columns provided on both sides of the passage are equipped with an expansion / contraction gate, respectively. It is a front view of the state,
A part of the rail is broken and drawn. Fence 1 on both left and right
A pair of vertical fixed columns 2A, 2B that are closely attached to A, 1B
Is installed. A pair of free end frames 3A and 3B are arranged in a vertical posture so as to correspond to the respective fixed pillars, and between the fixed pillars and the free end frame,
A large number of intermediate frames 4a, 4b are arranged at substantially equal intervals and vertically, and these members are connected by a pantograph type link 5.
They are connected by A and 5B so as to be able to expand and contract each other while keeping parallel to each other. Wheels 6A and 6A are attached to the lower ends of the free end frames 3A and 3B, respectively.
B is provided. Although not shown, there is an example in which wheels are provided on the intermediate frames 4a and 4b. The classical expansion and contraction gate can be expanded and contracted by hand power to open and close the passage (below,
It may be abbreviated as opening and closing the gate). Most of the existing telescopic gates are manually openable. However, recently, various electrically-operated opening / closing devices have been proposed.

The pantograph type link 5A. , 5B
Although a technique of providing a drive mechanism at the root part (fixed column side) is known, a larger drive force is required due to the relationship between friction and “lever”. As shown in FIG. 5, the motor M is installed in the fixed column 2B.
Is provided to rotate and drive the sheave S, and a sheave S'is provided in the fixed column 2B. An endless annular wire W is wound around both sheaves S and S'to rotate the sheave S, and the pair of free end frames are provided. A technique is also known in which each of 3A and 3B is attached to the wire W to electrically open and close the expandable gate. However, since a rail R having a chevron cross section is laid across the passage between the left and right fences 1A and 1B to dispose the wheels 6A and 6B, and the wire W is passed through the rail R, it obstructs passage. Moreover, since it is necessary to provide a slit having a width dimension corresponding to the diameter dimension of the wire W along the ridgeline of the mountain-shaped rail R to allow the wire to pass therethrough, it is difficult to sufficiently secure the strength of the rail R, and thus, the strength of the automobile R There is a risk of stepping on it and deforming it while passing. Further, since the wire W receives tension, it is stretched with use. For example, when a pair of free end frames 3A and 3B are provided as shown in FIG. 5, when the gate is closed, both free end frames 3A and 3B are closed. There is a risk of creating a gap between them. As an improvement for preventing troubles related to the extension of the wire, a technique of providing a screw rod for screw feeding instead of the wire W shown in FIG. 5 is also known. However, it is not preferred that a screw rod (not shown) be installed across the passage. If a groove (not shown) that crosses the passage is provided to store the screw rod so as not to damage the flatness of the road surface, it will be difficult to waterproof the members arranged in the groove and to drain the water that has flowed into the groove. There is a technical problem.

It is conceivable to use the push-pull chain as the transmission member for opening and closing in order to improve the above-mentioned conventional technique and to dispose the constituent members across the passage. FIG. 6 shows an example of an expansion / contraction gate opening / closing mechanism using a push-pull chain, and FIG. 6A is a schematic front view showing a state in which it is applied to a single-opening type expansion / contraction gate. (B) is an explanatory view of a push-pull chain used in the expansion gate opening / closing mechanism. As shown in (A), an electrically driven sprocket 8 is installed on a fixed column 2A which is the base end side of the pantograph type link 5, and a push-pull chain 7 is wound around and engaged with the sprocket 8. And one of the above push-pull chains
One end is attached to the free end frame 3. The push-pull chain 7 has a structure in which a large number of link plates 7a are connected by link pins 7b as shown in FIG. 7B, but two adjacent link plates 7a and 7a slide opposite to each other. The surface to be formed has a special S shape. For this reason, in the figure (B), it can be bent in a concave shape (U shape), but it cannot be bent in a convex shape. Taking advantage of these properties, the sprocket 8 shown in FIG.
When the push-pull chain 7 is fed to the right in the figure by rotating the counterclockwise, the right end of the push-pull chain pushes the free end frame 3 to the right in the figure, and the pantograph link 5 is extended. The expansion gate is closed. In the example of this FIG. 6, as shown in FIG. 5, it is configured as a single-opening type corresponding to the left half of the double-opening type expansion / contraction gate that is symmetrical with respect to the central line m-m. When is extended, the free end frame 3 comes into contact with the fixed column 2c and stops. The push-pull chain type drive mechanism in the present invention can be applied to both a double-opening type expansion gate and a single-sided expansion gate, but in order to make the drawings and the description clear and simple, it is mainly applied to the single-sided expansion gate below. An example will be described. In FIG. 6 (A),
Rotate the sprocket 8 clockwise to move the push-pull chain 7 to the left in the figure.
Is drawn to the left, the pantograph type link 5 is folded and contracted, and the telescopic gate is opened. Due to the above gate opening operation, the push-pull chain 7 is rotated by the sprocket 8
Is put in. To store the push-pull chain that has been pulled in by hand in a relatively small space, wind the push-pull chain in a direction in which the push-pull chain can bend as shown by an imaginary line 7 ', or use a spiral guide (for example, a spiral). It is possible to slide it into the tube and store it.

[0005]

As shown in FIG. 6 (A), when the push-pull chain 7 is used to open and close the telescopic gate, the push-pull chain drawn at the time of opening the gate is drawn in phantom lines. It is necessary to store it like 7 '. Therefore, with respect to the above-mentioned storage, a storage device that can be smoothly stored and delivered in a space as narrow as possible is required, but in practical use, the following demands are further made. However, the structure of opening and closing the expandable gate by a push-pull chain is an unknown invention created by the present inventors and applied for separately, and has not yet been supplied to the market. Therefore, the above-mentioned request is not a request from a general consumer or an equipment contractor, but the present inventors discovered and confirmed the necessity of further improvement during repeated practical tests. That is, the width of the passage in which the expandable gate is installed varies depending on whether it is wide or narrow. Further, as shown in FIG. 5, it may be installed in a double-open type or in a single-open type as shown in FIG. In response to such a situation, a specialized factory for expansion and contraction gates will design, manufacture, and supply various types of products, and the length dimension of the push-pull chain will differ and the expansion and contraction stroke of the pantograph type link 5 will also differ depending on each model. . As a result, the capacity of the retracted push-pull chain storage device, as shown by the phantom line 7'in FIG. 6A, also changes. It is possible, but economically disadvantageous, to design, manufacture and supply a specialized push-pull chain storage device for each type of telescopic gate. In other words, when considering a push-pull chain storage device, there is a tendency for small-volume production of other models, and it is not possible to expect mass production effects related to manufacturing costs, and the management cost of each step from production planning to inventory management becomes expensive. . The present invention has been made in view of the above circumstances, and is capable of adjusting the storage capacity by exchanging only a part of a plurality of constituent members (without having to replace the other constituent members). An object is to provide a pull chain storage device. Here, the storage capacity of the push-pull chain means the length dimension of the push-pull chain that can be freely slid in and pulled out.

[0006]

The basic principle of the present invention created to achieve the above object will be briefly described with reference to FIG. 1 corresponding to the first embodiment. A linear guide group 9 composed of parallel guide members as shown.
b and a pair of semi-circular guide groups 9a and 9b,
(B) Push-pull chain 7 combined as shown
Is accepted (arrow a). The push-pull chain 7 is housed in a flat spiral shape as shown by arrows b, c to h. It can also be pulled out in the direction opposite to the arrow a. Then, when the length dimension L of the linear guide group 9b is changed, the storage capacity of the push-pull chain is changed. As a concrete configuration based on the above-mentioned principle, in the push-pull chain storage device of the present invention, the fixed column and the free end frame are vertically arranged to face each other, and a large number of them are provided between the fixed column and the free end frame. Is an expansion and contraction gate in which the intermediate frames of are vertically arranged and the above-mentioned respective components are connected by a pantograph-type link, and a push-pull chain is wound around and meshed with a sprocket provided on the fixed column side. In the push-pull chain storage device in which one end of the push-pull chain is attached to the free end frame, and the other end side of the push-pull chain is attached to an extendable gate that is held by the storage device so as to be stored and extended freely. A plurality of linear guide members capable of slidably inserting the push-pull chain are arranged in parallel with each other. A linear guide group is formed, and end openings of at least two linear guide members of the plurality of linear guide members are connected to each other by a semi-circular guide member to form one set. The linear guide group of,
A flat spiral or flat spiral push-pull chain guide is constituted by a pair of semi-circular guide members mounted on both ends of the guide member, and the straight guide members are different in length from each other. By replacing the member with a member, the same semi-circular guide member can be used to adjust the expanded length dimension of the flat spiral or flat spiral. The flat spiral described above is a shape in which a spiral winding, which is a planar figure, is divided into two and stretched in a certain direction to form a straight line portion, as illustrated in FIG. 1B above. And What is a flat spiral?
As will be exemplified later with reference to FIG. 4, a spiral which is a three-dimensional figure is divided into two and stretched in a certain direction to form a straight line portion or a shape. The expanded length means the length when a flat spiral or flat spiral is stretched into a straight line, and is a dimension corresponding to the storage capacity of the push-pull chain.

[0007]

According to the above-mentioned means, the push-pull chain is guided by the combination of the linear guide group consisting of a plurality of linear guide members and the pair of semi-arcuate guide members attached to both ends of the linear guide group, and is inserted and pulled out. A free flat spiral guide or a flat spiral guide is formed. Moreover, the expanded length of the flat spiral guide or the flat spiral guide is changed by changing the length dimension of the linear guide member. When one linear guide group is composed of N linear guide members, the storage capacity of the push-pull chain can be changed by 1 × Ncm by changing the length dimension of the linear guide member by 1 cm. it can. To put this action into practical use, if a plurality of types of linear guide groups with different length dimensions and a single type of semi-circular guide group are supplied to the market, a linear guide of an appropriate length will be provided. By selecting a group and combining it with a single type of semi-circular guide group, a storage capacity suitable for a desired type of expandable gate can be obtained. Therefore, a push-pull chain storage device is constructed which minimizes the cost of installation equipment and the space required for installation so as not to have an excessive storage capacity depending on various types of telescopic gates and has a necessary and sufficient storage capacity. In addition, if it becomes necessary to increase the storage capacity of the push-pull chain for some reason, replace only the linear guide group and reuse the used semi-circular guide group to increase the storage capacity of the push-pull chain. Therefore, the cost of equipment for modification can be minimized.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to FIGS. 1A and 1B show an embodiment of a push-pull chain storage device for a telescopic gate according to the present invention. FIG. 1A is an exploded sectional view and FIG. 1B is a sectional view in an assembled state. However, it is drawn in a schematic manner so as to facilitate understanding of the structure and function, and is not a figure in which the shape of the apparatus of the embodiment is projected as it is. The storage device of this example is divided into three blocks i, j, and k as shown by the phantom lines in FIG. A plurality of blocks in the central block j (five in this example)
The linear guide members 9b 'are installed in parallel to form a linear guide group 9b. FIG. 2 shows a linear guide member that constitutes the embodiment shown in FIG.
Is a front view of a single item with the center part cut away, (B)
FIG. 4 is a cross-sectional view taken along the line BB. Reference numeral 7 drawn in phantom in (B) shows a push-pull chain housed in a linear guide member 9b '. A block i on the left side of the drawing is provided with a semi-circular guide group 9a composed of two semi-circular guide members. Further, a block k at the right end in the figure is provided with a semi-circular guide group 9c composed of two semi-circular guide members. When the block i and the block k are brought into contact with the block j and fixed to each other, a flat spiral guide 9 is formed as shown in FIG.

As described above, FIG. 1 is schematically illustrated and has a figure in which a spiral dead space D is formed in the spiral guide 9. In practice, it is desirable to avoid such meaningless voids as much as possible. In this embodiment, the five linear guide members 9b 'constitute the linear guide group 9b, and each two semi-circular guide members constitute the semi-circular guide groups 9a and 9c. However, the minimum number of components required for the present invention to achieve the intended purpose is as follows. Linear guide member 9b 'for forming the linear guide group 9b
The minimum required number of is 3 and the semi-circular guide group 9a,
9c does not necessarily have to form a group, each one
A semi-circular guide member of the book is sufficient. The above minimum number forms a one-turn half-shaped flat spiral guide.
However, when it is formed in a two-turn half shape as in this embodiment (FIG. 1), by changing the illustrated dimension L, a storage capacity change corresponding to 5 times that is obtained, and the push-pull chain 7 is pushed in. , It is most recommended because the frictional resistance associated with pulling out works smoothly and not excessively. This is an experimental fact obtained from a number of pilot studies.

In this embodiment, the length L shown in the drawing is 40 cm, 60 cm, 80 cm, and 1
We prepared 4 types, one of which is 00 cm. For example, L =
In the case of 100 cm, the storage capacity of L × 5 = 500 cm can be obtained only by the straight line portion, and the storage capacity of about 6 m including the semicircular arc portion is obtained. This is shown in the table: Dimension L Storage capacity 100 cm Approx. 6 m 80 cm Approx. 5 m 60 cm Approx. 3.5 m 40 cm Approx. 2.5 m It is actually produced and supplied by exchanging this linear guide group in blocks. It can cover almost all types of expansion and contraction gates.

Next, the places where the apparatus of the above embodiment is installed will be described with reference to the drawings. FIG. 3 is a schematic front view of a telescopic gate in which the push-pull chain storage device of the embodiment shown in FIG. 1 is installed. (A) is an example in which the storage device is provided in a fixed column, (B) Also shows an example provided in the ground. Reference numeral 11 shown in FIG. 1A is a gate pillar that is firmly planted on the ground, and the fixed pillar 2 that also serves as a case of the flat spiral guide 9 is attached to the gate pillar 11. 10 is
It is a drive unit for rotating the sprocket 8 and contains a motor (not shown). As an embodiment different from the above, the gate post 11 may be made of a steel plate and the flat spiral guide 9 may be installed on the gate post.

FIG. 1B shows the flat spiral guide 9
This is an example of being installed underground. This example is suitable for application to locations where drainage is easy, and as can be easily understood from the figure, the "part horizontally stretched on the ground" of the push-pull chain is Since it has a posture that it can be bent and does not bend as it becomes concave upward,
This part is easy to support and operates very smoothly. Next, an embodiment different from the above will be described with reference to the drawings. 4A and 4B show an embodiment in which a flat spiral guide is configured, FIGS. 4A and 4B are end views showing the arrangement of linear guides, and FIG. 4C is a schematic view of a flat spiral portion. FIG. Linear guide 9b '
4 when viewed from the length direction of FIG.
As shown in (B), multiple lines (6 in this example)
Book) linear guide members are arranged. FIG. 3C shows an appearance of the linear guides arranged as shown in FIG. 7B as viewed from an oblique direction. However, for convenience of description, reference numerals are used so that the respective linear guides can be distinguished from each other. 9e to 9j are attached. However, the linear guide 9h is hidden by the push-pull chain 7. 9k is an imaginary linear guide drawn to help understanding of the three-dimensional arrangement. The push-pull chain 7 inserted through the linear guide 9g from the bottom to the top is guided by a semi-circular arc guide (not shown) and inserted downward from the upper end of the diagonal linear guide 9j. The tip end of the push-pull chain 7 penetrates the linear guide 9j, is guided and inserted into the lower end of the linear guide 9f by a semi-circular guide (not shown), and rises from the upper end of the linear guide 9f. As shown in FIG. 4C, it exits and is guided to the upper end of the linear guide 9i, descends in the linear guide 9i, is folded back and rises in the linear guide 9e, and this is repeated. It is stored in a flat spiral shape. The above-mentioned flat spiral shape is as defined above, but it is as follows with reference to FIG. 4 (C). That is, for example, a normal spiral as seen in a male thread is circular when viewed in the axial direction, whereas the push-pull chain 7 in FIG. 4C is viewed in the arrow Eye direction. The dimension u is smaller than the dimension v shown in the drawing, and the shape is a spiral shape which is distorted in the horizontal direction. Such a shape is convenient when it is housed in a columnar member such as a gate.

[0013]

When the present invention is applied, a push-pull chain is guided and inserted by a combination of a linear guide group composed of a plurality of linear guide members and a pair of semi-arcuate guide members attached to both ends of the linear guide group. A flat spiral guide or a flat spiral guide that can be drawn out is formed. Moreover, the expanded length of the flat spiral guide or the flat spiral guide is changed by changing the length dimension of the linear guide member. When one linear guide group is constructed by N linear guide members,
By changing the length of the linear guide member by 1 cm, the storage capacity of the push-pull chain can be changed by 1 × Ncm. To put this action into practice,
When a plurality of types of linear guide groups with different length dimensions and a single type of semi-circular arc guide group are supplied to the market, a linear guide group of an appropriate length is selected and a single type of semi-circular guide group is selected. By combining the arcuate guide groups, a storage capacity suitable for a desired type of expandable gate can be obtained. Therefore, installation equipment cost and installation space should be minimized to prevent excessive storage capacity for various types of expandable gates.
In addition, a push-pull chain storage device having a necessary and sufficient storage capacity is configured. In addition, if it becomes necessary to increase the storage capacity of the push-pull chain for some reason, replace only the linear guide group and reuse the used semi-circular guide group to increase the storage capacity of the push-pull chain. Therefore, there is an excellent practical effect that the cost of equipment for remodeling is reduced to the minimum.

[Brief description of drawings]

FIG. 1 shows an embodiment of a push-pull chain storage device for a telescopic gate according to the present invention, (A) is an exploded sectional view,
(B) is a sectional view of the assembled state. However, it is drawn in a schematic manner so as to facilitate understanding of the structure and function, and is not a figure in which the shape of the apparatus of the embodiment is projected as it is.

FIG. 2 shows a linear guide member that constitutes the embodiment shown in FIG. 1 above, (A) is a front view of a single item with the central part cut away, and (B) is its B- It is a B cross-section arrow line view.

3 is a schematic front view of a telescopic gate in which the push-pull chain storage device of the embodiment shown in FIG. 1 is installed,
(A) shows an example in which the storage device is provided in the fixed column, and (B) shows an example in which it is also provided in the ground.

FIG. 4 shows an embodiment in which a flat spiral guide is configured, (A) and (B) are end views showing the arrangement of linear guides, and (C) is a schematic view of a flat spiral portion. FIG.

FIG. 5 shows a conventional example of an expansion / contraction gate, in which a pair of fixed columns provided on both sides of the passage are equipped with expansion / contraction gates, respectively. It is a front view of a state in which a part of the rail is broken and drawn.

FIG. 6 shows an example of a telescopic gate opening / closing mechanism using a push-pull chain, and FIG. 6A is a schematic front view showing a state where the telescopic gate is applied to a single-open type telescopic gate.
(B) is an explanatory view of a push-pull chain used in the expansion gate opening / closing mechanism.

[Explanation of symbols]

1A, 1B ... fence, 2, 2A, 2B ... fixed column, 3, 3A,
3B ... Free end frame, 4, 4a, 4b ... Intermediate frame, 5, 5A, 5B ... Pantograph type link, 6, 6
A, 6B ... Wheel, 7 ... Push-pull chain, 7a ... Link plate, 7b ... Link pin, 7c ... Through hole for discharging dust, 8 ... Sprocket, 9 ... Flat spiral guide, 9a
... Semi-circular guide group, 9b ... Linear guide group, 9b '...
A linear guide member, 9c ... a semi-circular guide group, 10 ... a drive unit, 10 ... a gate post.

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Masahiro Kimura 1972 Miyata-mura, Kamiina-gun, Nagano Toyo Exterior Company Ltd. (72) Inventor Hiroshi Kumata 80 Itado, Isehara City, Kanagawa Prefecture Ichikoh Industries Isehara Factory

Claims (1)

[Claims] 1. A fixed column and a free-end frame are vertically arranged to face each other, and a large number of intermediate frames are vertically arranged between the fixed column and the free-end frame, and the respective constituent members are pantographed. An expandable gate connected by a formula link, in which a push-pull chain is wound around and meshes with a sprocket provided on the fixed column side, and one end of the push-pull chain is attached to the free-end frame, and A push-pull chain storage device attached to a telescopic gate whose other end is held by a storage device so that the push-pull chain can be extended and retracted freely. The members are arranged in parallel with each other to form a linear guide group, and among the plurality of linear guide members, End opening of not even two linear guide member, be linked to each other by semicircular guide member, and a pair of the linear guides group is attached to both ends 1
A flat spiral or flat spiral push-pull chain guide is constituted by a pair of semi-circular guide members, and by replacing the linear guide member with a linear guide member having a different length, A push-pull chain storage device for a telescopic gate, which has a structure capable of adjusting a development length dimension of the flat spiral or the flat spiral by using the same semi-circular guide member.