JP2005299311A - Opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To install an opening/closing device without widening a space on a skeleton side or without narrowing the width of a space which is to be partitioned by an opening/closing body. <P>SOLUTION: An assist means D for assisting an opening and/or closing movement of a sliding opening/closing body is installed in the part other than the width directional both sides of the opening/closing body 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an opening / closing device such as a shutter device including an overhead door, a door, a sliding door including a shutter, a sash window, and a sliding wall device, and more particularly to an opening / closing device suitable as a shutter device.

2. Description of the Related Art Conventionally, in an opening / closing device provided with assist means for assisting an opening operation and / or closing operation of a sliding opening / closing body, for example, as disclosed in Patent Document 1, the tension force of a tension spring is applied to close the opening / closing body. There are things that give motion as an assist force.
Special table 2003-527513

By the way, the tension spring used in the opening / closing device having the above-described configuration is usually built in the guide rails on both end sides in the width direction of the opening / closing body with its expansion / contraction direction being along the opening / closing direction of the opening / closing body.
The guide rail may incorporate various members for transmitting the assist force of the tension spring to the operation of the opening / closing body, and a weight member for controlling the opening / closing operation of the opening / closing body. .
For this reason, it is necessary to secure a space in the guide rail in which various members including the tension spring described above are built.
In order to secure the built-in space, the width of the guide rail must be widened. Therefore, in order to secure the space width for the purpose of partitioning the opening / closing body, it is necessary to widen the space width on the housing side by the built-in space. There is.
However, in order to widen the space on the side of the enclosure, when replacing the opening and closing body in an existing building, there is a case where construction for expanding the space on the side of the enclosure is performed, but in this case, the construction takes time and costs increase. In addition, there is a risk of affecting the strength of the housing.
In some cases, the space width partitioned by the opening / closing body may be reduced. In this case, there is a possibility that what could pass before the opening / closing body is replaced becomes narrower after the replacement and cannot pass.

  Therefore, an object of the present invention is to provide an opening / closing device that can be installed without increasing the space width on the housing side or reducing the space width partitioned by the opening / closing body.

  According to a first aspect of the present invention, there is provided an opening / closing apparatus provided with assist means for assisting an opening operation and / or closing operation of a sliding opening / closing body, wherein the assist means is disposed at both side portions in the width direction of the opening / closing body. It is installed in one of the parts to exclude.

The opening / closing device referred to in the present invention includes all devices configured to open / close the opening / closing body that partitions the space so as to be openable / closable by power or human power, and assist the opening operation and / or closing operation in the opening / closing operation. .
In the opening / closing device, an aspect in which the opening / closing body performs only an opening operation, an aspect in which the opening / closing body performs only a closing operation, and further, the opening / closing body performs both an opening operation and a closing operation. And so on.
As the form of the opening / closing body, a form in which a plurality of slats and pipes are continuously provided in the opening / closing direction, a form in which a panel or a sheet-like object or a net-like object is provided in the opening / closing direction, or a slat , Pipes, panels, sheet-like materials, net-like materials, and the like.
The assist means includes all means capable of assisting the opening and / or closing operation of the sliding opening / closing body, and examples thereof include those using the elastic force of the elastic body as an assist force. Examples include tension springs and mainspring springs, rubber strings and belts.

The installation part of the assist means is arbitrary as long as it is a part excluding both side parts in the width direction of the opening / closing body. From the viewpoint of effectively using the space on the side of the casing, for example, as in the second invention, It is preferable to install it above the body.
Moreover, the installation direction of the assist means may be either installed so that the assist force acts in a direction along the opening / closing direction of the opening / closing body, or installed so as to act in a direction crossing the opening / closing direction. However, as in the third aspect of the invention, when the assist force is installed so as to act in a direction intersecting with the opening / closing direction of the opening / closing body, conversion means for converting the direction of the assist force into the opening / closing direction of the opening / closing body is provided. preferable.
The conversion means includes all those that can convert the assist force intersecting the opening / closing direction of the opening / closing body as an assisting force to the opening / closing operation of the opening / closing body, for example, a bevel gear, a universal joint, Examples thereof include a rack and pinion.
For example, when the converting means is a bevel gear, the assisting force in the direction intersecting the opening / closing direction of the opening / closing body rotates one gear of the bevel gear so that the other gear meshing with the rotating gear rotates, The rotation of the gears acts as an assist force for the opening and / or closing operation of the opening / closing body.
In order to more effectively use the space on the housing side, it is preferable to install the assist means so that an assist force is applied in a direction along the opening / closing body width direction as in the fourth aspect of the invention.

And when the said assist means uses the elastic force of an elastic body as an assist force like 5th invention, the said assist means has the flexibility connected with the said elastic body and this elastic body. A winding member having a winding member around which the winding member is wound, and the winding member pulls the winding member by performing a winding operation with the power of a power unit involved in the opening / closing operation of the opening / closing body. An elastic force of the elastic body is generated by a tensile force.
The winding member includes all flexible members that can be wound around the winding member, and examples thereof include a string-like body, a belt-like body, a chain, and a wire.
Moreover, the said winding member contains all what can wind up a winding member, for example, a pulley, a drum, etc. are mentioned.
When the fifth invention is applied to the configuration of the third invention, for example, when the conversion means is a bevel gear, the winding member is pivotally supported so as to rotate coaxially with one gear, and this winding member. It is comprised by winding a winding member around.
And in 6th invention, when the said opening-closing body is a thing of the form wound up in a winding device, the said conversion means is provided over the winding shaft in an assist means and a winding device, It is characterized by the above-mentioned. To do.
In this case, for example, when the conversion means is the bevel gear, the other gear of the bevel gear is pivotally supported on the winding shaft, and the opening and closing body is wound and / or unwound by rotation of the other gear. Configured to assist.

Further, the seventh invention is characterized in that a pulling member that applies an assisting force and / or a resistance force to the opening / closing operation of the opening / closing body is provided on at least one end side in the opening / closing body width direction.
The tension member includes any member that applies an assist force and / or a resistance force to the opening / closing operation of the opening / closing body, and examples thereof include a weight member and a tension spring.

The present invention has the following effects by the above configuration.
According to the first aspect of the invention, since the assist means is installed in a portion excluding both side portions in the width direction of the opening / closing body, without increasing the space width on the housing side or reducing the space width partitioned by the opening / closing body. A switchgear can be installed.
Furthermore, according to the second invention, since the assist means is installed above the opening / closing body, the space of the housing can be used more effectively.

Further, according to the third invention, the assist means is installed so that the assist force acts in a direction intersecting the opening / closing direction of the opening / closing body, and the conversion means for converting the direction of the assist force into the opening / closing direction of the opening / closing body is provided. Therefore, the structure which uses the space of a housing effectively can be provided concretely.
Furthermore, according to the fourth aspect of the present invention, the assist means is installed so that the assist force is applied in the direction along the opening / closing body width direction, which is effective in effectively using the space on the housing side.
In particular, by applying the configuration of the fourth invention to the configuration of the second invention, the assist means can be accommodated in the space on the housing side without protruding in the thickness direction of the opening and closing body. It is more effective in terms of effective use of space.

In addition, according to the fifth invention, it is possible to specifically provide a configuration in which the assist means generates the assist force with an easy configuration that uses the elastic force of the elastic body.
Further, according to the sixth aspect of the invention, it is possible to specifically provide a configuration in which the opening / closing body is provided with assist means in a form in which the opening / closing body is wound by the winding device.

  Furthermore, according to the seventh aspect, since the pulling member is provided, an assisting force and / or a resistance force can be applied to the opening / closing operation of the opening / closing body. Alternatively, the human power can be reduced by the assist force, and the impact when reaching the fully opened and fully closed state can be reduced by the resistance force.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
1 and FIG. 2 show a first embodiment of the present invention (hereinafter referred to as “first example”), and FIG. 3 shows a second embodiment of the present invention (hereinafter referred to as “second example”). FIG. 4 shows a third embodiment of the present invention (hereinafter referred to as “third example”).
In addition, the opening and closing device shown in each embodiment is disposed in an opening or inside a building or structure such as a house, building, warehouse, factory, underground shopping street, tunnel, vehicle loading platform, and opens and closes the opening, A configuration applied to a shutter device that includes an opening / closing body that partitions or opens a space inside the housing and that guides the opening / closing body in the opening / closing direction by a guide rail to partition or open the space is illustrated.
In the configuration of the second embodiment, the description of the same parts as those of the first embodiment will be omitted by attaching the same reference numerals to the drawings.

As shown in FIGS. 1 and 2, the opening / closing device A of the first embodiment is guided in the vertical direction by the winding device 2 in which the opening / closing body 1 is operated by the power of the motor unit B and guided by the guide rails 11 and 12. It is rolled up or fed out.

In the winding device 2 of the present embodiment, a winding shaft 21 for winding and unwinding the opening / closing body 1 is supported rotatably on both sides in the opening / closing body width direction.
A power transmission mechanism C including sprockets C1 and C2 and a chain C3 is disposed between the motor part B and the winding shaft 21, and the power of the motor B is transferred to the winding shaft 21 by the power transmission mechanism C. By transmitting, the opening / closing body 1 opens and closes.

Reference sign D is assist means for assisting the winding operation of the motor part B.
The assist means D of the present embodiment assists the opening / closing body 1 in the opening direction from the left end of the winding shaft 21 and assists the opening / closing body 1 in the closing direction from the right end of the winding shaft 21. The two assist means have substantially the same configuration.

The assist means D includes a tension spring 3 disposed above and in parallel with the winding shaft 21, a wire 4 connected to the tip of the tension spring 3, and a tensile force of the tension spring 3. It is comprised from the conversion means 5 transmitted as the winding rotational force of the winding shaft 21.
The conversion means 5 is a right-angle gear mechanism comprising a bevel gear 51 coaxial with the winding shaft 21 and a bevel gear 52 that meshes with the bevel gear 51 in an axial direction that intersects the axis at right angles.
A winding pulley 53 that rotates coaxially is pivotally supported on the bevel gear 52, and the wire 4 is connected to the winding pulley 53 so as to be capable of winding and unwinding.

In addition, although the said assist means of a present Example is provided with two pieces, in this invention, it is not limited to these two pieces, and it is an opening-closing body from either edge part of a winding shaft with one assist means. 1 may be assisted in the opening direction or the closing direction.
Further, as a form of the assist means, the conversion means is provided at both ends of the winding shaft, one tension spring is disposed between the conversion means, and each end of the tension spring is provided with the above-described one. The form which connects a wire and connects these wires to each conversion means is also mentioned.

One of the assist means D configured as described above is configured such that when the opening / closing body 1 is in a fully closed state, the tension spring 3 is extended so that the wire 4 is wound around the winding pulley 53.
Further, the tension force of the tension spring 3 acts in the winding rotation direction of the winding shaft 21 via the wire 4 and the conversion means 5.
That is, when the winding shaft 21 is wound and rotated by the power of the motor B (opening and closing operation of the opening / closing body 1), the pulling force of the tension spring 3 feeds and rotates the winding pulley 53 via the wire 4.
The unwinding rotation of the winding pulley 53 acts as a winding rotational force of the winding shaft 21 via the conversion means 5.
Therefore, when the opening / closing body 1 is opened, the pulling force of the assist means D can be applied to the power of the motor B as the assist force.
Further, during the closing operation of the opening / closing body 1, when the motor B rotates the winding shaft 21 (the closing operation of the opening / closing body 1), the rotation is transmitted as the winding rotation of the winding pulley 53 via the conversion means 5. Is done.
When the wire 4 wound by the winding rotation of the winding pulley 53 pulls the tension spring 3, a tensile force is generated in the tension spring 3.
As described above, this pulling force acts in the winding rotation direction of the winding shaft 21 via the wire 4 and the conversion means 5, so that it acts as a resistance force on the rotation of the winding shaft 21 and opens and closes. The impact when the body 1 is fully opened will be alleviated.
Further, during the closing operation of the opening / closing body 1, the assist force by the other assisting means D acts in the closing direction of the opening / closing body 1, and the resistance force acts in the opening direction of the opening / closing body 1.

Reference numeral 6 is tension detecting means for detecting the tension of the wire 4 and detects that an abnormality has occurred in the tension of the wire 4 when the wire 4 or the tension spring 3 is cut.
The tension detection means 6 includes a switch box 61, a detection body 62 fitted to the switch box 61 so as to be movable in and out, a spring 63 that constantly urges the detection body 62 in a direction protruding from the switch box 61, The switch unit 61 includes a switch unit (not shown) that is turned on when the detection body 92 moves in the protruding direction and is turned off when the detection body 92 moves in the immersion direction.
The detection body 62 is in contact with the roller 64 provided at the tip so that the roller 64 is opposed to the wire 4 by an urging force.
Further, the roller 64 reduces contact friction during winding and unwinding of the wire 4.
The tension detecting means is not an essential requirement of the invention of the present application, but by providing it, it is possible to detect a tension abnormality earlier, thereby preventing the possibility of hindering the opening / closing operation. it can.

The biasing force of the spring 63 is weaker than the normal tension acting on the wire 4, and when the tension acting on the wire 4 is normal, the tension prevents the detector 62 from moving in the protruding direction. The OFF state of the switch unit is maintained.
And when the wire 4 is cut and its tension decreases. The detecting body 62 is moved in the protruding direction by the urging force of the spring 63, and the switch portion is turned on with the movement of the detecting body 62 to detect that the wire 4 or the tension spring 3 has an abnormal tension. In addition, information on abnormal tension is generated electrically.

The electrical information is input to a control means (not shown). Based on the input information, the control means is operated by, for example, an alarm lamp (not shown) or an alarm buzzer (not shown). Control is performed to notify the user, to actuate a brake device (not shown) that applies braking to the rotation of the winding shaft 21, and to stop the operation of the motor part B.
The control is also applied to each embodiment described later.

Next, a second embodiment of the present invention will be described.
In the opening / closing device A ′ of this embodiment, the converting means 5 in the assist means D includes a pulley 54 coaxial with the take-up shaft 21, a pulley 55 having an axial direction perpendicular to the axis of the pulley 54, The belt 56 is wound around the pulleys 54 and 55.
The belt 56 is wound by twisting the belt 56 between the pulleys 54 and 55.
The opening / closing device A ′ having the conversion means 5 also applies an assisting force to the opening / closing operation of the opening / closing body 1 as well as the opening / closing body 1 similarly to the opening / closing device A of the first embodiment. It is possible to mitigate the impact by applying a resistance force.

Next, a third embodiment of the present invention will be described.
The opening / closing device A ″ of this embodiment is provided with an opening / closing motion control device 7 for controlling the opening / closing operation of the opening / closing body in addition to the assist means D.
The opening / closing motion control device 7 includes a linear body 71 having flexibility and low stretchability, a pulley mechanism 8 around which the linear body 71 is wound, and a weight member 9 that applies tension to the linear body 71. Although the detailed description is omitted, basically, the opening / closing motion control device 7 is configured by the weight of the weight member 9 at the beginning of the opening / closing operation of the opening / closing body 1. The tension generated in the shape body 71 acts as an assisting force on the opening / closing operation of the opening / closing body 1.
In addition, the tension generated in the linear body 71 due to the weight of the weight member 9 in the latter half of the opening / closing operation of the opening / closing body 1 at the second half of the opening / closing operation of the opening / closing body 1 from the dead point at the height position corresponding to the pulley mechanism 8 causes the opening / closing operation of the opening / closing body 1. It acts as a resistance force.
As in this embodiment, the opening / closing device A ″ including the assisting means D and the opening / closing movement control device 7 is also provided with the assisting means D above the take-up shaft 21, so that it is expected to secure the effective width of the space. it can.

In addition, this invention is not limited to the Example illustrated above, The implementation by another structure is possible in the range which does not deviate from the content described in each item of a claim.

The front view of 1st Example of the switchgear concerning this invention. The principal part top view of FIG. The principal part top view of 2nd Example of the switchgear concerning this invention. The front view of 3rd Example of the switchgear concerning this invention.

Explanation of symbols

A: Opening / closing device A ′: Opening / closing device A ″: Opening / closing device B: Motor unit C: Power transmission mechanism D: Assist means 1: Opening / closing body 11: Guide rail 12: Guide rail 2: Winding device 21: Winding shaft 3: Pull spring 4: Wire 5: Conversion means 51: Bevel gear 52: Bevel gear 53: Winding pulley 54: Pulley 55: Pulley 56: Belt

Claims (7)

In an opening / closing apparatus provided with assist means for assisting an opening operation and / or closing operation of a sliding opening / closing body,
The opening / closing apparatus characterized in that the assist means is installed in any of the parts excluding both side parts in the width direction of the opening / closing body.   The opening / closing apparatus according to claim 1, wherein the assist means is installed above the opening / closing body.   The assist means is installed so that the assist force acts in a direction intersecting with the opening / closing direction of the opening / closing body, and is provided with conversion means for converting the direction of the assist force into the opening / closing direction of the opening / closing body. The switchgear according to claim 1 or 2.   The opening / closing apparatus according to claim 3, wherein the assist means is installed so as to apply an assist force in a direction along a width direction of the opening / closing body. The assist means uses an elastic force of an elastic body as an assist force,
The assist means includes the elastic body, a flexible winding member connected to the elastic body, and a winding member around which the winding member is wound.
The winding member is configured to take up the winding member by the power of the power means involved in the opening / closing operation of the opening / closing body to pull the winding member, and to generate the elastic force of the elastic body by this pulling force. The switchgear according to any one of claims 1 to 4.   The open / close body is of a form wound up by a winding device, and the conversion means is provided across an assist means and a winding shaft of the winding device. The switchgear according to any one of 5.   The pulling member for applying an assisting force and / or a resistance force to the opening / closing operation of the opening / closing body is provided on at least one end side in the opening / closing body width direction. The switchgear described.

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