JP3138811B2 - Switchgear and switchgear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an opening / closing device for opening and closing windows and roofs of a building, and an opening / closing structure.

[0002]

2. Description of the Related Art Conventionally, as a switchgear, for example,
2. Description of the Related Art There has been known a structure in which an opening / closing member including a window and a roof is supported by a link mechanism in which a plurality of link arms and the like are connected to a fixed member including a window frame and a roof frame.

This conventional opening and closing device drives the opening and closing of an opening and closing member by operations such as rotation and undulation of a link mechanism, and is configured to use an electric motor, an operation handle and the like as a driving source.

[0004]

In the opening and closing device described above, if the angle of rotation of the opening and closing member is set to be large, the operating range of rotation, undulation, etc. of the link mechanism becomes large. There is a problem that it is restricted.

An object of the present invention has been made in view of such problems, and an opening / closing device capable of setting a large angle of rotation of an opening / closing member without increasing an operating range of a link mechanism. Another object of the present invention is to provide an opening / closing structure which is provided with the opening / closing device and is effectively used.

[0006]

Means for Solving the Problems In order to solve the above-mentioned problems, a switchgear according to the present invention employs the following means.

An object of the present invention is to provide an opening / closing device in which an opening / closing member is rotatably opened / closed by a link member on a fixed member. The opening / closing member is disposed so as to be movable in parallel to the opening / closing axis of the fixed member and the opening / closing member. A rotatable drive shaft having a thread groove formed thereon, and a pair of one end rotatably supported by a fixed member and an intermediate portion screwed into a thread groove of the drive shaft to be tilted and moved synchronously and symmetrically. And a long link arm connected between the other end of the armature, the fixed member, and the opening / closing member.

In this means, when the drive shaft is rotationally driven, the operating element rotates around the support point of the fixed member as a pendulum to move the link arm close to and away from the operating area along the fixed member and the opening / closing member. Thus, the opening and closing member is rotated and opened and closed. Therefore, the operation range of the link mechanism is small along the fixing member and the opening / closing member.

According to the above object, in the opening and closing device according to the first aspect, the operating member is mounted on the outer surface of the nut so as to project in a direction orthogonal to the screw hole of the nut. A rotating shaft, a bearing that supports the rotating shaft, a casing that supports the bearing, and a slotted tilting groove that is opened in the casing and extends in a direction perpendicular to the rotating shaft and through which the drive shaft is inserted. This is achieved by:

In this means, the operator is connected to the drive shaft via a rotatably supported nut and rotates the pendulum.

Further, in order to solve the above-mentioned problem, the opening / closing structure according to the present invention employs the following means.

The object of the present invention is to provide a fixing member in which the opening / closing device according to claim 1 or 2 is installed, wherein the opening / closing member is formed into a triangle which is divided into four triangles, and the three opening / closing members are sides of one central fixing member. Are formed so that a triangular pyramid can be formed by projecting outward with respect to each of the centers.

In this means, the opening / closing member rotates in a stable posture about the base of the triangle, projects outward, and is attached to the triangular pyramid, and is 3/3 of the total area of the fixed member and the opening / closing member.
4 is released.

[0014] The above object is achieved by the opening / closing structure according to the third aspect, wherein the triangle of the fixing member and the opening / closing member is set as one unit, and multiple units are stretched to form a cone.

According to this means, a stable structure having a conical shape as a whole is obtained.

The above object is achieved by the opening / closing structure according to the third or fourth aspect, wherein the link arms of the opening / closing device according to the first or second aspect are connected to each other with three fixing members.

According to this means, the stress applied to the link arm is canceled out as a reaction force by the connection of the three branches.

[0018]

Hereinafter, embodiments of a switchgear and a switchgear according to the present invention will be described with reference to the drawings.

FIGS. 1 to 6 show an embodiment of a switchgear according to the present invention.

In this embodiment, the rotation center shafts 1,
A link mechanism including a drive shaft 2, a drive motor 3, an operator 4, a space shaft 5, and link arms 6, 7 is employed.

The rotation center shaft 1 is supported by a fixed member A, and its axis is the opening / closing axis of the fixed member A and the opening / closing member B. The opening / closing member B is rotatably connected to the rotation center shaft 1 by a hinge (not shown) or the like.

The drive shaft 2 is disposed so as to be freely rotatable in a free state in parallel with the rotation center shaft 1, and is arranged so as to be able to change the distance from the rotation center shaft 1 (to be able to move in parallel). As shown in detail in FIG. 3, the drive shaft 2 has thread grooves 2a and 2b formed in opposite directions on both sides.

The drive motor 3 is of a small electric type and has a built-in speed reduction mechanism and is connected to the center of the drive shaft 2. The drive motor 3 includes a drive shaft 2
Can be driven to rotate in both forward and reverse directions.

The operator 4 is provided with a screw groove 2 of the drive shaft 2.
a and 2b, each of which has a pair of short pendulum arms. As shown in detail in FIG. 4, the actuator 4 includes a nut 4a such as a built-in ball type screwed into the screw grooves 2a and 2b of the drive shaft 2, and a screw hole of the nut 4a on both outer surfaces of the nut 4a. A rotating shaft 4b protruding in a direction perpendicular to the axis of the bearing, a bearing 4c such as a ball bearing for radially supporting the rotating shaft 4b, an arm-shaped casing 4d for fitting and supporting the bearing 4c, and a casing 4d.
And a slot-shaped tilting groove 4e extending in a direction orthogonal to the rotation shaft 4b and through which the drive shaft 2 is inserted. One end of a casing 4d of the operator 4 is supported at a fixed position of the rotation center shaft 1 via a space shaft 5 at a fixed interval so as to be rotatable in two directions. Accordingly, the operator 4 moves in the axial direction of the drive shaft 2 with the rotation of the drive shaft 2 and tilts (rotates) in the axial direction and the circumferential direction of the drive shaft 2. Note that the pair of operators 4 operate symmetrically in synchronization.

The link arm 6 of one system is composed of two long linear members.
d and the opening and closing member B are rotatably connected to each other. The other one of the link arms 7 is composed of two long linear members, and is rotatably connected to the other end of the casing 4 d of the operator 4 and the fixed member A.

According to this embodiment, when the drive shaft 2 is rotated forward by the forward rotation of the drive motor 3, both the operators 4 move so as to be close to each other along the drive shaft 2. This movement is achieved by the nut 4a of the operator 4 converting the rotational movement of the drive shaft 2 into a parallel linear movement.

At this time, since one end of the casing 4d of the operator 4 is restrained at a fixed position, the operator 4 is tilted so that the other end of the casing 4d is close to the axis of the drive shaft 2. Will be. This inclination is performed as rotation of the nut 4a of the operator 4 and the bearing 4c and the casing 4d with respect to the rotation shaft 4b. In this tilting, the tilting groove 4 opened in the casing 4d of the operator 4 is used.
By e, unnecessary collision and contact between the casing 4d and the drive shaft 2 are avoided.

The operator 4 tilts away from the fixing member A at the other end of the casing 4d of the casing 4d because the link arm 7 of another system is connected to the fixing member A. It will involve rotation. In addition, since each part of the operator 4 is compactly assembled to the casing 4d, the operation range of the operator 4 is reduced, and the operation is reliably performed.

The rotation of the operator 4 rotates the connection point of one link arm 6 to the opening / closing member B about the rotation center shaft 1. At this time, the drive shaft 2 is once separated from the rotation center shaft 1 and approaches again.

As a result, the opening / closing member B is rotated and opened.

Further, by the reverse rotation drive of the drive motor 3,
The opening / closing member B is rotated and closed by the reverse operation described above.

In the opening and closing of the opening and closing member B described above, FIGS.
As is clear from FIG. 6, the two link arms 6, 7 slightly move up and down from the fixing member A and the opening / closing member B to perform the movement substantially along the fixing member A and the opening / closing member B. Therefore, even if the rotation angle of the opening / closing member B is set to be large,
The operating range of rotation, undulation, etc. of the link mechanism does not become large, and the equipment target and the equipment location are not restricted.

In this embodiment, the characteristics of the link mechanism, which is entirely composed of linear members and is lightweight and does not hinder daylighting and ventilation, are not hindered at all.

7 to 10 show an embodiment of the opening / closing structure according to the present invention.

FIG. 7 shows one unit of opening and closing suitable for constituting as a part of an opening and closing roof of a building or the like.

One unit of the opening and closing is formed in a substantially equilateral triangle, and is divided by an inscribed triangle with the center of the side as the vertex. That is, one fixing member A and 3
And two opening / closing members B are defined.

The three opening / closing members B are configured to be rotatable around a side of the fixed member A to the outside of a building or the like. The three protruding opening / closing members B can form a triangular pyramid by abutting two sides of each other. The above-described opening / closing device according to the present invention is provided with three units between one fixed member A and three opening / closing members B.

FIGS. 8 and 9 show one unit of opening and closing of FIG.
The figure shows a structure in which the whole is formed into a hexagonal pyramid by being spread radially.

In this overall structure, each side of the hexagonal pyramid is constituted by one unit for opening and closing, and the opening / closing member B is pivotally protruded to the outside of the building or the like for each side of the hexagonal pyramid to form a triangular pyramid. It is supposed to be. Therefore, a geometric appearance and decorativeness can be obtained, and the whole structure is stable and has a certain strength.

Further, in this embodiment, as shown in FIG. 10, the link arm 7 of another system is arranged so as to be connected in a triangular shape by a fixing member A located at the center.

According to this embodiment, since the opening / closing member B has the center of rotation at the bottom of the triangle and the top end of the tapered triangle as the tip of the rotation, the opening / closing member B rotates in a stable posture. Be moved. In addition, since the opening / closing member B that protrudes to the outside of the building or the like forms a triangular pyramid, the structure has a certain strength stably. Therefore, even if the opening / closing member B is quite large, a small and simple link mechanism for guiding and supporting the rotation projection of the opening / closing member B, such as the opening / closing device according to the present invention, is sufficient. .

When the opening / closing member B pivots and protrudes to the outside of the building or the like, three-quarters of the opening / closing unit becomes an open space S except for the fixing member A, so that a wide open area is secured. . Further, in the entire hexagonal pyramid shown in FIGS. 8 and 9, the open spaces S are evenly arranged without being unevenly distributed, and the lighting property and the ventilation are improved. Since the triangular pyramid formed by the opening and closing member B easily cuts off the wind, unnecessary stress is prevented from being applied to the central fixing member A and the like.

In the connection structure of the link arm 7 shown in FIG. 10, the opening and closing moment of the opening / closing member B, the stress such as the load, and the like, are connected to each other by the triangular shape of the fixing member A, and cancel each other as reaction forces. . Therefore, it is not necessary to provide the link arm 7 with a high level of stress resistance. Further, the link arm 7 connected in a three-crotch shape also functions as a reinforcing angle lined with the fixing member A.

As described above, in addition to the illustrated embodiment, the opening and closing device according to the present invention may include a manual operation handle in place of the drive motor 3 when the fixing member A and the opening and closing member B are small. it can.

Further, the entire structure of the opening / closing structure according to the present invention may be other than a hexagonal pyramid.

Further, with respect to the opening / closing device and the opening / closing structure according to the present invention, the inside and outside of the building can be opened / closed in addition to the opening / closing window and the opening / closing roof, as well as furniture and doors of mechanical equipment.

[0046]

According to the configuration of the present invention as described above,
The following effects can be obtained. (A) In the opening / closing device according to the present invention, since the link arm is operated along the fixed member and the opening / closing member, the angle of rotation of the opening / closing member can be set large without increasing the operating range of the link mechanism. . Also, due to this effect,
There is an effect that the equipment target and the equipment location are not restricted. (B) In addition, there is an effect that the characteristics of the link mechanism, which is composed entirely of linear members and is lightweight and does not hinder daylighting and ventilation, are not hindered at all. (C) Further, in the second aspect, since each part of the operation element is assembled compactly to the casing, the operation area of the operation element is reduced and the operation is reliably performed. (D) Further, in the opening / closing structure according to the present invention, the opening / closing member is pivoted around the base of the triangle to protrude outward and is assembled into a triangular pyramid, so that the protruding posture is stable and has a certain strength. Therefore, the opening / closing support structure is reduced in size and simplified, which is advantageous for the equipment of the opening / closing device according to the present invention. (E) Further, since three opening / closing structures except one fixing member are opened to open three-quarters of the opening / closing unit, there is an effect that a wide open area is secured. (F) Further, since the triangular pyramid formed by the opening / closing member easily cuts off the wind, there is an effect that unnecessary stress is prevented from being applied to the fixing member and the like. (G) Further, in the fourth aspect, since the whole is formed in a conical shape, there is an effect that a structure having a certain strength is stably obtained. (H) According to the fourth aspect, since the whole is formed in a conical shape by stretching the opening / closing unit of a triangle, the open spaces are evenly arranged without being unevenly distributed, and the lighting and ventilation are improved. effective. (I) As a fifth aspect, the moment of opening / closing of the opening / closing member,
Since the stress such as the load is offset as a reaction force by the three link arms connected in a forked manner by the fixing member, there is an effect that the link arm does not need to have a high level of stress resistance. (J) According to a fifth aspect of the present invention, since the link arm connected to the three forks has a structure lining the fixing member, there is an effect that the fixing member is reinforced by the link arm.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view showing an embodiment of a switchgear according to the present invention.

FIG. 2 is a perspective view showing the equipment state of FIG.

FIG. 3 is an enlarged front view of a main part of FIGS. 1 and 2;

FIG. 4 is an enlarged sectional view of another main part of FIGS. 1 and 2;

FIG. 5 shows the opening / closing operation of FIGS. 1 and 2, and FIG.
Is a front view, and (B) is a side view of the main part of (A).

6 (A) is a front view, and FIG. 6 (B) is a side view of a main part of FIG.

7A and 7B are perspective views of one unit of opening and closing showing an embodiment of the opening and closing structure according to the present invention, wherein FIG. 7A shows an operation state from a closed state to an opened state, and FIG. 7B shows an opened state. .

8A and 8B show the entire structure including FIG.
Is a side view, and (B) is a plan view.

9A and 9B show the whole including FIG. 7B, and FIG.
Is a side view, and (B) is a plan view.

FIG. 10 is a plan view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotation center shaft 2 Drive shaft 3 Drive motor 4 Operator 4a Nut 4b Rotation shaft 4c Bearing 4d Casing 4e Tilting groove 6 Link arm 7 Link arm A Fixing member B Opening / closing member

──────────────────────────────────────────────────続 き Continued on the front page (73) Patent holder 000000974 Kawasaki Heavy Industries, Ltd. 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo (72) Inventor Shigetaka Isaka 8-1-1 Kitaichijo Nishi, Chuo-ku, Sapporo-shi Inside Sapporo Television Broadcasting Co., Ltd. (72) Inventor Shigeharu Isaka 5-10, Kamioga, Setagaya-ku, Tokyo Inside Isaka Design Studio Co., Ltd. (72) Inventor Kunio Watanabe 5-9-1, Hiroo, Shibuya-ku, Tokyo Within the Structural Design Group, Inc. (72) Inventor Terushi Nakamura 2-6-5 Minamisuna, Koto-ku, Tokyo Kawasaki Heavy Industries, Ltd.Tokyo Design Office (72) Inventor Takanari Sawai 2-6-5-2 Minamisuna, Koto-ku, Tokyo No. Kawasaki Heavy Industries, Ltd. Tokyo Design Office (58) Fields surveyed (Int. Cl. ⁷ , DB name) E05F 15/12 E05F 11/08 E05F 11/34 E05D 15/04

Claims (5)

(57) [Claims] An opening / closing device having a fixing member rotatably opening and closing the opening / closing member by a link mechanism;
A rotatable drive shaft which is disposed so as to be able to move in parallel to the opening / closing axis of the opening / closing member and has screw grooves formed in opposite directions on both sides, and a drive shaft having one end rotatably supported by the fixed member and a midway portion A pair of short operating members which are screwed into the threaded grooves and tilt and move synchronously and symmetrically, and a long operating member which is connected between the other end of the operating member, the fixing member, and the opening / closing member. An opening / closing device comprising a link mechanism having a link arm. 2. The opening / closing device according to claim 1, wherein the operating element includes a nut screwed into a screw groove of the drive shaft, and a rotary shaft mounted on an outer surface of the nut in a direction orthogonal to the screw hole of the nut. And a bearing that supports the rotating shaft, a casing that supports the bearing, and a slotted tilting groove that is opened in the casing and extends in a direction perpendicular to the rotating shaft and through which the drive shaft is inserted. A switchgear characterized by the above. 3. The fixing member in which the switching device according to claim 1 or 2 is installed, wherein the opening / closing member is formed in a triangular shape obtained by dividing a triangle into four, and the three opening / closing members respectively define the sides of one central fixing member. An opening / closing structure, characterized in that a triangular pyramid can be formed by projecting outward from the center. 4. The opening / closing structure according to claim 3, wherein a triangular shape of the fixing member and the opening / closing member is defined as one unit, and a plurality of units are stretched and formed in a conical shape. 5. The opening / closing structure according to claim 3, wherein the link arms of the opening / closing device according to claim 1 or 3 are connected to each other by a fixing member in a forked shape.