JPH10317841A - Sound insulating vertical sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To insulate sound between two spaces partitioned by a door by simple operation. SOLUTION: At least one shaft is erected on each side of a door and the shaft and the door are connected by a linking mechanism 13. A pressing frame 14 is fixed to the node portion 13c of the linking mechanism 13. And then, when the door is lowered, the lower frame touches a floor, the shaft is lifted upward, deforming the linking mechanism 13 into a shape like a pantograph. The pressing frame 14 is pushed outward, touches a guide rail and thereby blocks a clearance there and insulates sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting door used for partitioning a stage of a theater or the like, and more particularly to a sound insulation lifting door for preventing sound from leaking between partitioned spaces.

[0002]

2. Description of the Related Art For example, theater stages include substages, good and bad, and these can be separated by lifting doors. When each of the divided spaces is used for an individual purpose, the lifting door needs to have a sound insulation structure in order to prevent sound leakage.
In order to cope with such a demand, a lifting door having a sound insulation function has been put to practical use in recent years. As a conventional sound-insulating lifting door, a sound-insulating member having elasticity is arranged between the door and the opening, and after the door is lowered to close this opening, the space between the door and the opening is It is known that the sound insulation member is pressed against the gap to close the space, thereby preventing sound from leaking. However, in such a sound-insulating lifting door, after the door is once lowered to close the opening,
An operation of pressing the sound insulating member against the gap is required, and there is a disadvantage that the opening and closing operation is troublesome.

[0003]

As described above, in the conventional sound-insulating lifting door, a sound-insulating member is used, which is pressed against the gap to prevent the sound from leaking. There was a growing demand for sound insulation with some simple operation. The present invention has been made to solve such a conventional problem, and an object of the present invention is to lower a door body to make contact with a floor surface, thereby closing a gap portion and causing sound leakage. It is an object of the present invention to provide a sound-insulating lifting door capable of preventing the occurrence of noise.

[0004]

In order to achieve the above object, the invention according to claim 1 of the present application has a door body which can be moved up and down along guide rails erected at both ends of an opening. In sound-insulating lifting doors that can be sound-insulated and closed by opening the body by lowering the body to the floor, one or more doors are provided on both sides of the door, and when the bottom of the door comes into contact with the floor, A shaft that slides upward,
It has at least one node and two rods connected thereto, one end of the rod is connected to the door side, the other end of the rod is connected to the shaft side, and the shaft is When slid in the direction, a link mechanism that operates so that the node portion protrudes outward in a pantograph shape, and has a long shape, and is erected outside the shaft on both sides of the door body. A press-contact frame that is locked to a node of the link mechanism, and is pushed out when the link mechanism operates to project the node outward, and is in pressure contact with the side surface of the guide rail. It is. Further, the press contact frame according to claim 2 is characterized in that at least an outer surface is formed of a flexible member. Further, in the invention according to claim 3, the lower end portion of the door body has an elongated shape along the width direction of the door body, contacts the lower end portion of the shaft, and moves downward by an elastic member. A biased lower frame is arranged.

According to a fourth aspect of the present invention, a flap is disposed along a longitudinal direction of a side surface of the press-contact frame and closes a gap between the press-contact frame and the door body by being in contact with the inner surface of the door. It is characterized by the following. According to a fifth aspect of the present invention, a sound insulator that closes a gap by press-fitting when the door body descends and comes into contact with a floor surface is disposed at an appropriate location of a swallowing opening arranged on a ceiling portion of the door body. It is characterized by having done.

According to the present invention constructed as described above, when the door body descends and the lower frame comes into contact with the floor surface, the lower frame is brought into contact with the floor surface at a constant pressure by the urging force of the elastic member (spring joint 11). The contact makes it possible to close the gap in this portion. Also, when the lower frame contacts the floor, the shaft will slide upward,
As a result, the link mechanism is deformed into a pantograph shape, and the node of the link mechanism is pushed outward, so that the press-connecting frame connected to this node is pressed outward and comes into contact with the guide rail. Can be closed. Further, since a gap formed between the upper part of the door body and the forage is closed by the sound insulating body (the packing 18), it is possible to prevent sound from leaking from the gap.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a configuration of an embodiment of a sound-insulating lifting door to which the present invention is applied. This sound-insulating lifting door is used, for example, for partitioning a theater stage. As shown in the figure, the sound-insulating lifting door has a door 1 that is entirely rectangular.
The opening surrounded by the lintel 3 serving as a swallowing opening of the door 1 can be closed by the guide rails 2 and 2 erected on both sides. A beam 17 is fixed to the upper end of the door 1 along the width direction of the door 1, and a plurality of pulleys 4 are fixed to the upper surface of the beam 17. Then, by winding the wire 5 locked on the pulley 4 using a winch (not shown) or the like, the door 1 can be moved up and down, thereby opening and closing the opening. It has become. The sound insulation lifting door of the present embodiment is:
When the door 1 is lowered and brought into contact with the floor surface, the gap between the door 1 and the opening is closed in conjunction therewith, and a sound insulation effect can be obtained.

FIG. 2 is a cross-sectional view (A-A cross section of FIG. 1) showing a state of connection between the door 1 and the guide rail 2, and FIG. 3 is a vertical cross-sectional view of the lower side of the door 1 (FIG. 1). 4 is a longitudinal sectional view (CC sectional view of FIG. 1) of the same upper side. As shown in FIG.
On the side surface on the door body 1 side, a slit-shaped notch 6 is formed along the longitudinal direction, and a plurality of rollers 7 are arranged inside in the longitudinal direction (in FIG. Therefore only one is visible).

On the other hand, as shown in FIGS. 3 and 4, the inside of the door 1 is filled with glass wool 8 used as a sound insulating material, and the outside of the door 1 is as shown in FIG. , A long guide plate 9 is fixed in the vertical direction. Then, the guide plate 9 is inserted into the notch 6 of the guide rail 2 and engages with the roller 7.
When the roller 7 slides, the door 1 can be moved up and down along the guide rail 2 without blurring back and forth.

As shown in FIG. 3, two long lower frames 10 are arranged in parallel at the lower end of the door body 1 along the width direction of the door body. 10
The lower end surface of the door 1 is fixed by being urged downward by a spring joint 11. That is, the rod 11a of the spring joint 11 is urged downward by the elastic force of a spring (not shown) housed inside the cylinder 11b, and the lower frame 10 is fixed to the rod 11a. The frame 10 is urged downward by the spring joint 11. A packing 16 made of an elastic material such as rubber is attached to the lower surface of the lower frame 10 along the width direction, and the packing 16 contacts the floor surface,
The sound insulation effect can be obtained. Furthermore,
A flap 22 is arranged between the lower frame 10 and the lower end of the door 1, so that a gap in this portion is closed. Further, as shown in FIG. 2, two shafts 12 (12a, 12a, 12a and 12a) communicating from the upper end to the lower end of the door 1 are provided on both sides of the guide plate 9 therebetween.
b) is disposed so as to be slidable in the vertical direction, and the lower end of the shaft 12 is fixed to the lower frame 10 as shown in FIG.

FIG. 5 shows the shaft 12 (12a, 12b).
And a side view of a link mechanism 13 connected thereto,
As shown in the figure, the link mechanism 13 includes two rods 1.
3a, 13b and a node 13c connecting these, and one end of the rod 13b (point P1 in the figure) is connected to the shaft 12. Also, the other rod 13
The end of point a (point P2 in the figure) is connected to the door 1 side.
Although only one link mechanism 13 is illustrated in FIG. 5, a plurality of link mechanisms 13 are actually arranged at substantially equal intervals (for example, at 1 m intervals) in the longitudinal direction of the shaft 12. The joint 13c of each link mechanism 13 connected to the two shafts 12 (12a, 12b) is connected to two press-contact frames 14 erected at the side end of the door 1. Therefore, when the shaft 12 slides upward,
The point P1 of the link mechanism 13 is lifted upward. At this time, since the point P2 is fixed to the door 1, the link mechanism 13 operates in a pantograph shape. That is, the joint 13c of the link mechanism 13 moves to the outside of the door 1, and the press-contact frame 14 connected thereto is also pressed to the outside. As shown in FIG. 2, the press-contact frame 14 is formed in a substantially rectangular cross section, and a packing 15 made of a resilient material such as rubber is attached to the outside thereof. Further, a rubber flap 20 is attached so as to close a gap between the press-contact frame 14 and the door body 1, so that sound leakage from this gap can be prevented.

On the other hand, as shown in FIG. 4, a beam 17 made of an H-shaped steel material is fixed to the upper end of the door 1, and the upper surface of the beam 17 is fixed as described above. A pulley 4 for locking the lifting wire 5 is attached. An overhang 21 is provided on the upper end side of the door 1, and a packing 18 formed of an elastic material such as rubber is provided on a lower surface of the overhang 21 along the width direction of the door 1. It is arranged. When the lower end of the door body 1 comes into contact with the floor surface, the packing 18 comes into contact with a contact portion 19 formed inside the lintel 3 so as to close a gap in this portion. .

Next, the operation of the sound-insulating lifting door according to this embodiment configured as described above will be described. As shown in FIG. 1, this lifting door has a pulley 4 attached to the upper end of the door body 1 and a wire 5 is locked on the pulley 4 to take up the wire by a winding means such as a winch. Therefore, by operating the winch, the door 1 can be raised and lowered to release and close the opening. Then, when the door 1 is gradually lowered to close the opened door 1, the lower frame 10 installed at the lower end of the door 1 comes into contact with the floor surface (FIG. 3). reference). When the lower frame 10 is further lowered from this state, the lower frame 10 is lifted upward against the urging force of the spring joint 11. Then, since the packing 16 attached to the lower surface of the lower frame 10 and the floor surface come into contact with each other at a constant pressure, a gap in this portion is closed, and sound leakage from this portion is prevented. Can be prevented.

On the other hand, when the lower frame 10 is lifted upward, the shafts 12, which are arranged two at each end of the door 1, also slide upward, and as a result, as shown in FIG. Thus, the end (point P2) of the rod 13b connected to the shaft 12 slides upward. The end (point P1) of the rod 13a is the door 1
, The link mechanism 13 operates in a pantograph shape, whereby each of the rods 13a,
The node 13c serving as a contact point of 13b is pressed outward. Accordingly, the press contact frame 14 fixed to the node 13c is pushed outward, and as a result, the packing 15 of the press contact frame 14 comes into contact with the side surface of the guide rail 2. As a result, the gap between the press-contact frame 14 and the guide rail 2 is closed by the packing 15, so that sound leakage from this portion can be prevented. As shown in FIG. 2, a gap formed between the press contact frame 14 and the door 1 is
Since the flap 20 attached to the fourth side comes into contact with the inner surface of the door body 1, this gap can be closed. Further, when the lower frame 10 contacts the floor surface, as shown in FIG.
The packing 18 arranged at the upper end of the door 1 is
And at a constant pressure, the gap at this portion can be closed.

As described above, in the sound-insulating lifting door according to the present embodiment, the door body 1 is lowered to bring the lower frame 10 into contact with the floor, so that the lower frame 10 and the floor, the press-contact frame 14 and the guide rail 2 , And the gap between the upper end of the door 1 and the lintel 3 can all be closed, and the gap between the press-contact frame 14 and the door 1 is closed by the flap 20, Since the gap between the lower frame 10 and the door 1 is closed by the flap 22, it is possible to effectively prevent sound from leaking between the spaces partitioned by the lifting door. In the above-described embodiment, two shafts 12 are arranged at both ends of the door 1, respectively. However, the present invention is not limited to this, and one or three shafts may be used. That's fine. It can be changed appropriately in consideration of the sound insulation effect.

[0016]

As described above, according to the first aspect of the present invention,
In the sound-insulated lifting door described in, the door contacts the floor,
When the shaft slides upward, the press-contact frame comes into contact with the side surface of the guide rail due to the operation of the link mechanism and closes the gap therebetween, so that sound leakage from this portion can be prevented. According to the second aspect of the present invention, since the flexible member (the packing 15) is disposed on the surface of the press-contact frame that comes into contact with the guide rail, the gap therebetween can be closed with higher precision.

According to the third aspect of the present invention, the lower frame is disposed at the lower end of the door body, and the elastic member (spring joint 11) attached to the lower frame provides the lower frame.
Since it is in contact with the floor surface at a constant pressure, the gap at this portion can be closed, and sound leakage can be prevented.
According to the fourth aspect of the present invention, the flap is attached between the press-contact frame and the inner surface of the door body, thereby closing the gap between the press-contact frame and the door body. Leakage can be prevented.

Further, according to the fifth aspect of the present invention, since the gap formed between the upper part of the door and the lintel is closed by the sound insulating body, a sound insulating effect can be obtained.

That is, in the sound-insulating lifting door of the present invention, by lowering the door body and bringing the lower end portion of the door body into contact with the floor surface, the gap between the door body and the guide rail, and the door body and the floor surface are separated. while,
The gap created between the door body and the lintel can be closed, and the gap created between the pressure contact frame and the door body can also be closed, so that the space between the two spaces partitioned by the lifting door can be closed. Sound leakage can be effectively prevented. Therefore, unlike the related art, there is no need to perform a troublesome operation of closing the gap once the door body is closed, so that the operability is good and the labor of the operator can be significantly reduced. .

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a configuration of an embodiment of a sound-insulating lifting door according to the present invention.

FIG. 2 is a cross-sectional view (a cross-sectional view along AA in FIG. 1) showing details of a connection portion between the guide rail and the door body of the sound-insulating lifting door according to the embodiment.

FIG. 3 is a vertical cross-sectional view of the lower side of the sound-insulating lifting door according to the embodiment (a cross-sectional view taken along BB in FIG. 1).

FIG. 4 is an upper longitudinal sectional view of the sound-insulating lifting door according to the embodiment (a sectional view taken along line CC in FIG. 1).

FIG. 5 is a side view showing details of a shaft and a link mechanism of the sound-insulating lifting door according to the embodiment.

FIG. 6 is an explanatory view showing a state of connection between a lower frame and a shaft of the sound-insulating lifting door according to the embodiment.

[Explanation of symbols]

 Reference Signs List 1 door body 2 guide rail 3 lintel 4 pulley 5 wire 6 cutout 7 roller 8 glass wool 9 guide plate 10 lower frame 11 spring joint (elastic member) 11a rod 11b cylinder 12 shaft 13 link mechanism 13a, 13b rod 13c node 14 Pressure Welding Frame 15, 16 Packing (Flexible Member) 18 Packing (Sound Insulator) 17 Beam 19 Contact Section 20, 22, Flap 21 Overhang

Continued on the front page (72) Inventor Takeshi Ohata 78 Ohashi Manufacturing Co., Ltd. at 2 Osumi Nakanotani, Kyotanabe, Kyoto

Claims (5)

[Claims] 1. A sound-insulating lifting door that has a door body that can move up and down along guide rails provided on both ends of an opening, and that can lower the door body to the floor so that the opening can be sound-insulated and closed. A shaft that is erected on each side of the door body, and that slides upward when the lower end of the door body comes into contact with the floor surface, and is connected to at least one node and this With two rods, one end of the rod is connected to the door and the other end of the rod is connected to the shaft, and when the shaft slides upward, the knot is connected to the pantograph. A link mechanism that operates so as to protrude outward in the shape of an elongate member, is formed to be longer than the shaft on both sides of the door body, and is engaged with a node of the link mechanism,
And a pressure contact frame which is pushed out when the link mechanism operates to project the node outward, and which comes into pressure contact with the side surface of the guide rail. 2. The press-contact frame according to claim 1, wherein at least an outer surface is formed of a flexible member.
The described sound insulation lifting door. 3. A lower end portion of the door body has an elongated shape along a width direction of the door body, and contacts a lower end portion of the shaft,
2. The sound-insulating lifting door according to claim 1, wherein a lower frame urged downward by an elastic member is disposed. 4. A flap arranged along a longitudinal direction of a side surface of the press-contact frame and closing a gap between the press-contact frame and the door body by being in contact with the inner surface of the door. The sound-insulating lifting door according to 1. 5. A sound insulator that closes a gap by press-fitting when the door descends and comes into contact with a floor surface is disposed at an appropriate location of a swallowing opening arranged on a ceiling portion of the door body. The sound-insulating lifting door according to claim 1.