JP2003120126A - Extension type slide device and multi-stage slide door using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide device capable of automatically pulling one rail with the pulling operation of the other rail and capable of smoothly pulling and housing the rails even in a case of the structure formed by combining multi-stage rails freely to slide. SOLUTION: This extension type slide device is formed of a first rail fitted to a fixed part, a second rail fitted to the first rail through multiple rolling bodies freely to slide, and a third rail fitted to the second rail through multiple rolling bodies freely to slide. The second rail is provided with a pair of deflectors at both ends thereof in the sliding direction, and an endless transmitting member is wrapped around the deflectors, and a part of one span of the transmitting member between the pair of deflectors is fixed to the first rail, and a part of the other span is fixed to the third rail.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide device in which a plurality of rails are slidably combined with each other, and in particular, a plurality of rails can be pulled out from a fixed rail in multiple stages. The present invention relates to a feed-out type slide device and a multistage slide door using the same.

[0002]

2. Description of the Related Art Heretofore, there has been known a slide device in which a pair of channel-shaped rails are combined with each other through balls so that the other rail can be freely pulled out from the one rail (Japanese Patent Laid-Open No. 2004-242242). 51-48046). In addition, a slide device of a type in which three or more rails are combined and the amount of slide is increased by pulling out each rail stepwise is also known.

Further, this type of slide device is used for a slide door in an opening of a building, a slide part of a drawer in storage furniture, and the like, and as described above, a slide device in which three or more rails are combined is used. By using it, there is an advantage that the slide amount of the slide door and the drawer can be set large while shortening the total length of each rail.

[0004]

By the way, a so-called top-hanging type slide door which supports the door from above by such a slide device is suitable for a barrier-free structure, that is, a structure in which there is no step on the floor. Therefore, in recent years, the demand for new construction and expansion / renovation of hospitals and welfare facilities is increasing. In order to make it barrier-free, it is necessary to consider the passage of a wheelchair, etc., and it is necessary to take a large opening width, but keep the storage space of the door small when opening the door while securing a sufficient opening width. From this point of view, it is ideal to cover the entire opening with not one large door but two or three divided doors. Also, if the openings are covered with a plurality of doors, the other doors can be pulled out or stored in a retractable manner in conjunction with the opening / closing operation of one door so that the opening / closing operations of these doors can be smoothly performed. Ideally.

However, in the conventional sliding device, since the rails provided in multiple stages slide individually without interlocking, if the door is to be closed, the first door is completely pulled out and then the second door is pulled out. The eye door was pulled out, and it was not possible to open and close the entire door smoothly.
In addition, when automating the opening / closing, the stroke amount of the automatic opening / closing mechanism such as a linear motor has to be set to be the same as the stroke amount of the first door, which causes a problem that the automatic opening / closing mechanism itself becomes large. It was

The present invention has been made in view of the above problems, and an object of the present invention is to provide a single rail even when a multi-stage rail is slidably combined. Another object of the present invention is to provide a slide device capable of automatically pulling out another rail in association with the pulling-out operation of the rail and smoothly pulling out and storing the rail.

Another object of the present invention is to provide a multi-stage slide door capable of smoothly opening and closing the door and capable of downsizing the automatic opening / closing mechanism.

[0008]

In order to achieve the above-mentioned object, a slide device of the present invention is slidable with a first rail attached to a fixed portion and the first rail through a large number of rolling elements. It is composed of a second rail to be fitted and a third rail slidably fitted to the second rail through a large number of rolling elements, and a pair of changeable members are provided at both ends of the second rail in the sliding direction. While providing the direction bodies, an endless transmission member is laid around these direction bodies to fix a part of one span of the transmission member between the pair of direction bodies to the first rail, while the other side is fixed. It is characterized in that a part of the span is fixed to the third rail.

Further, the multistage slide door of the present invention includes a first rail attached to a fixed portion, and a second rail slidably fitted to the first rail via a large number of rolling elements.
It is composed of a third rail slidably fitted to the second rail through a large number of rolling elements, a movable door fixed to the third rail, and an intermediate door fixed to the second rail. While a pair of deflecting bodies is provided at both ends of the second rail in the sliding direction, an endless transmission member is laid around the deflecting bodies so that one of the transmitting members between the pair of deflecting bodies is provided. A part of the span is fixed to the first rail, while a part of the other span is fixed to the third rail, and the intermediate door moves in conjunction with the movement of the movable door. Is.

According to such a technical means, since a part of the endless transmission member is fixed to the third rail, when the third rail is slid with respect to the second rail,
The transmission member rotates around a pair of deflection bodies provided at both ends of the second rail. This transmission member is the first
Since it is also fixed to the rail, the transmission member presses the deflecting body of the second rail as it rotates, and the second rail moves at a speed half the sliding speed of the third rail. It will slide in the same direction as the sliding direction of the three rails.
Further, when the second rail is slid with respect to the first rail, the deflecting bodies provided at both ends of the second rail press the transmission member which is laid around the deflecting body. Accordingly, the transmission member rotates, and the third rail slides in the same direction as the sliding direction of the second rail at a speed double the sliding speed of the second rail.

That is, even if either the third rail or the second rail is pulled out from the first rail, the remaining rails are pulled out at double speed or half speed in conjunction with this pulling-out operation, which is assembled in multiple stages. The rail can be smoothly pulled out from the fixed first rail. Also,
On the contrary, it is possible to smoothly store.

Therefore, when the movable door is fixed to the third rail and the intermediate door is fixed to the second rail to form a multi-stage slide door, when the movable door is moved, the intermediate door is halved in conjunction with this. Since it moves at a speed, it becomes possible to construct a sliding door with smooth motion.
If the automatic door opening / closing mechanism is provided for the intermediate door, the movable door can be automatically opened / closed with a stroke twice that of the intermediate door, and the automatic opening / closing mechanism itself can be downsized. Become.

In such a slide device of the present invention, the shapes of the first, second and third rails may be appropriately determined, but from the viewpoint of obtaining a thin and compact structure, the above first It is preferable that the third rail and the third rail are formed in a channel shape, and the rails are arranged so that the concave grooves provided in these rails face each other.
According to this structure, since the second rail and the transmission member can be housed in the space formed by the concave grooves of the first rail and the third rail in cooperation with each other, the thickness of the slide device itself can be reduced. be able to.

Further, from the viewpoint of preventing a large number of rolling elements that apply a load between the first rail and the second rail from interfering with each other, each rolling element is a holding plate made of synthetic resin. It is preferable that they are arranged at a predetermined interval. This point is the same for many rolling elements that apply a load between the second rail and the third rail.

Further, when a heavy object such as a door is attached to the second rail and the third rail of the slide device for use, the loads acting on the second rail and the third rail are sufficiently applied. While the auxiliary traveling wheels are rotatably provided on the third rail, a fixed support frame having a traveling path along which the auxiliary traveling wheels travel is provided over substantially the entire sliding range of the third rail. Is preferred.

The rolling element in the present invention may be either a ball or a roller. Although the rollers are suitable for heavy loads, it is difficult to avoid the occurrence of skew during rolling. Therefore, when the balls are used by providing the above-mentioned auxiliary running wheels, etc. The rail and the second rail can be slid.

Further, the combination of the deflecting member and the transmitting member in the present invention may be any combination as long as the transmitting member can freely circulate around the second rail, such as a pulley and a wire, a gear and a timing belt. You can choose.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION A feed-out type slide device of the present invention and a multistage slide door using the same will now be described in detail with reference to the accompanying drawings. 1 and 2 show one embodiment of the slide device of the present invention. This slide device includes a first rail 10 mounted to a fixed portion such as a structure of a building, and a second rail 20 slidably provided on the first rail 10 via a large number of rolling elements 1. And also a third rail 30 slidably provided with the second rail 20 via a large number of rolling elements 1, along the longitudinal direction of the first rail 10 (direction perpendicular to the plane of FIG. 2). Thus, the second rail 20 and the third rail 30 can be moved.

The first rail 10 and the third rail 30 are formed by precision forming a steel plate by roll forming, and bend a pair of ball rolling portions 12, 32 along the longitudinal direction of the mounting bases 11, 31. As a result, it is formed in a channel shape. In addition, the ball rolling section 12,
On the inner surface of 32, ball rolling surfaces 13 and 33 having a curvature similar to the spherical surface of the ball 1 are formed. These first
The rail 10 and the third rail 30 are arranged so that the respective grooves are opposed to each other, and the second rail 20 is housed in the space formed by these grooves, and the thickness of the slide device as a whole is thin. It is suppressed.

On the other hand, FIG. 3 shows the second rail 20. The second rail 20 is formed into a substantially H-shaped cross section by joining a pair of inner rails 21 and 21 formed in a channel shape so as to be back-to-back.
1 is formed by roll-forming a steel plate similarly to the first rail 10 and the like. Each inner rail 21 is a first rail 10 or a third rail 30 which is an outer rail.
Is formed so that it can be used in combination with, and a ball rolling surface 24 having a curvature similar to the spherical surface of the ball 1 is formed on the outer surface of the ball rolling portion 23 bent from the joining base portion 22. There is. Therefore, the ball 1 is between the ball rolling portion 12 of the first rail 10 and the ball rolling portion 23 of the second rail 20, the ball rolling portion 32 of the third rail 30 and the ball rolling portion of the second rail 20. 23, and when moving the second rail 20 and the third rail 30, roll the ball rolling surfaces 13, 24, 33 formed on each ball rolling portion while applying a load. .

A pair of pulleys 26 are rotatably disposed at both ends of the second rail 20 via brackets 25, and wires 27 are endlessly laid between the pulleys 26. There is. The wire 27 is stretched in the concave groove of the inner rail 21, and can freely rotate around the pair of inner rails 21 by the rotation of the pulley 26. The wire 27 is provided to interlock the movement of the third rail 30 and the movement of the second rail 20, and the wire span of the wire span stretched in the groove of each inner rail 21 between the pair of pulleys 26. Among them, a part of one span is fixed to the mounting base 31 of the opposing third rail 30, while a part of the other span is fixed to the mounting base 11 of the opposing first rail 10. That is, in this embodiment, the pulley 30 corresponds to the deflection means of the present invention, and the wire 27 corresponds to the endless transmission member. The pulley 26 is not necessarily required to freely rotate as long as it does not hinder the rotation of the wire 27 around the second rail 20, and may be a sliding pad or the like formed of a member having a low friction coefficient. It doesn't matter.

FIG. 3 shows the first rail 10 and the second rail 2.
It is a perspective view showing the state where 0 and the 3rd rail 30 were disassembled. In the conventional slide device, a press-formed sheet metal ball retainer is provided in order to arrange the balls at a predetermined interval, and the ball retainer is provided between the first rail and the second rail. It was arranged between the second rail and the third rail. However, in the slide device of the present embodiment, the wire which is the transmission member is stretched in the groove between these rails, and the conventional ball cage made of sheet metal is an obstacle to the wire, so it is used. I can't.
Therefore, in this embodiment, a holding plate made of synthetic resin is provided for each ball rolling surface of each rail, and the balls are arranged on the holding plate. That is, a large number of balls 1 arranged between the first rail 10 and the second rail 20 are arranged at predetermined intervals on the holding plate 6 made of synthetic resin for each rolling surface 13, 24, and a plurality of balls 1 are arranged. The individual balls 1 are configured to roll as a group between the ball rolling surfaces 13 and 24. The holding plate 6 moves on the first rail 10 together with the ball 1 when the second rail 20 is pulled out from the first rail 10, but the holding plate 6 pops out of the first rail 10 together with the ball 1. If this happens, the balls 3 may fall off, so that the second rail 20 may be used only within a range in which the holding plate 6 does not protrude from the inside of the first rail 10.
It is possible to pull out from. Further, the moving distance of the ball 1 along with the moving of the second rail 20 is about ½ of the moving distance of the second rail 20. Therefore, when the second rail 20 is completely housed in the first rail 10, the holding plate 6 is located substantially in the center of the second rail 20 and the first rail 10, and the second rail 20 is also located.
In the state where is pulled from the first rail 10, the holding plate 6 is located at the end portions of the second rail 20 and the first rail 10.

The balls 1 located between the second rails 20 and the third rails 30 are also attached to the holding plate 6 similarly to the balls 1 arranged between the first rails 10 and the second rails 20. It is arranged at a predetermined interval.

FIG. 5 shows the first rail 10 to the third rail 30.
It shows the movement of the second rail 20 when the is pulled out. The lowermost stage is the state in which the third rail 30 is pulled out from the first rail 10 most, the middle stage is the state in which the third rail 30 is slightly accommodated in the first rail 10, and the uppermost stage is the third rail 30 in the first rail 10. Is shown in a completely stored state. Travel A shown in the figure for the third rail 30
When this is moved, the wire 27 fixed to the third rail 30 accordingly rotates around the second rail 20 by a distance corresponding to the travel A. This wire 27
Is fixed to the first rail 10 on the opposite side of the second rail 20, the pulley 26 around which the wire 27 is wound plays the same yesterday as the moving pulley, and the second rail 20 to which the pulley 26 is mounted is As the wire 27 rotates, it travels in the same direction as the third rail 30 at a speed half that of the third rail 30 by the travel A / 2. Therefore, if the third rail 30 moves by the travel B, which is the maximum stroke,
The rail 20 also moves in the same direction by travel B / 2, which is the maximum stroke. That is, the second rail 20 always moves in the moving direction of the third rail 30 at a speed half that of the third rail 30.

As a result, only by pulling out either the second rail 20 or the third rail 30 from the first rail 10, the second rail 20 and the third rail 30 combined with the first rail 10 in multiple stages can be obtained. Both can be interlocked to be extended from the first rail 10, and according to the slide device of this embodiment, it is possible to perform a smooth withdrawal and storage operation of the rail in multiple stages.

FIG. 6 shows an example in which an upper suspension type slide door is constructed by using this slide device S.
A front view showing an open state of the slide door and a plan view of the slide device S suspending the door as viewed from above are drawn. An open door pocket 8 of the door is provided right next to the opening 7 in which the slide door is provided, and the first rail 10 of the slide device S is fixed above the door pocket space 8 via the bracket 4. Has been done. The door that covers the opening 7 is a movable door 71 and an intermediate door 7.
It is composed of two doors No. 2 and No. 2, and each door is formed to have a width slightly larger than the half width of the opening 7.
The movable door 71 is suspended from the third rail 30 of the slide device S, and the intermediate door 72 is suspended from the second rail 20.

FIG. 7 shows a slide device S for the opening 7.
Installation state of the door 71 for each rail 20, 30
FIG. 7 is an enlarged side view showing a fixed state of 72. The first rail 10 of the slide device S is fixed to the ceiling 9 via a bracket 4 having a substantially L-shaped cross section. Further, mounting plates 73 for suspending the doors 71 and 72 are fixed to the second rail 20 and the third rail 30, respectively, and the movable door 71 and the intermediate door 72 described above are screwed to the mounting plates 73. It has been stopped. Here, the attachment plate 73 is fixed to the second rail 20 by sandwiching the attachment plate 73 between a pair of inner rails 21 and 21 forming the second rail 20, and welding or riveting these three members together. It is held fixed.

Further, in the above-mentioned slide device S, the balls 1 are not arranged over the entire length of the rolling surface of each rail 10, 20 and 30, but are only locally present at the position where the holding plate 6 has moved. is there. Therefore, depending on the weights of the movable door 71 and the intermediate door 72, the third rail 3
When 0 is pulled out from the first rail 10 and the doors 71 and 72 are closed, the tip ends of the third rail 30 and the second rail 20 may be bent downward. Therefore, in FIG.
In the slide device S shown in FIG. 1, the channel-shaped fixed support frame 5 is provided adjacent to the third rail 30, while the auxiliary traveling wheels 35 are provided at two positions in the longitudinal direction of the third rail 30.
35 are rotatably provided, and these auxiliary traveling wheels 35 are configured to travel in the concave groove of the fixed support frame 5.
The fixed support frame 5 is fixed to the ceiling 9 over substantially the entire movement range of the third rail 30, and a running path 50 for running the auxiliary running wheels 35 is formed upward in the groove. .

FIG. 8 shows the movable door 71 and the intermediate door 7.
2 shows a state in which 2 is pulled out from the door pocket space 8 and the opening 7 is closed. When the movable door is touched and pulled out from the door pocket space, the intermediate door suspended from the second rail is also pulled out from the door pocket space in conjunction with the movable door and moves at half the speed of the movable door. Become. The same applies when the door is stored in the door pocket space. When the movable door is stored in the door pocket space, the intermediate door is stored in the door pocket space at half the speed of the movable door. Thereby, the two doors can be drawn out from the door pocket space or stored in the door pocket space by merely operating one door, and a large number of doors can be smoothly opened and closed.

Auxiliary traveling wheels 35 are provided on the third rail on which the movable door is suspended.
Travels along the traveling path 50 in the fixed support frame 5 while applying a vertically downward load acting on the third rail 30, so that even when the movable door 71 and the intermediate door 72 are pulled out from the door pocket space 8, Third by load
The rail 30 and the second rail 20 do not bend downward, and the opening / closing operation of the door can be performed lightly. In order to lighten the opening and closing of each door, it is preferable that the auxiliary traveling wheel 35 is made of a hard material such as metal or hard plastic, but it is said that the noise generated when traveling the fixed support frame 5 is reduced. From the viewpoint, it is possible to cover the auxiliary traveling wheel 35 with soft rubber or the like.

On the other hand, when opening and closing the multi-stage slide door configured as described above, it is possible to automatically open and close it by using a mechanism such as a linear motor, an air cylinder, and a rack and pinion. At this time, if the automatic door opening / closing mechanism is provided not for the movable door 71 but for the intermediate door 72, the intermediate door 72 can be moved by a distance that is half the opening width, and the movable door 71 can be moved by a distance that is twice that distance. Can be opened and closed. Therefore, the automatic opening / closing mechanism can be downsized, and an automatic sliding door that occupies a small space in the machine can be provided.

[0032]

As described above, according to the slide device of the present invention, whichever the third rail or the second rail is pulled out from the first rail, the remaining rails are interlocked with the pulling operation. Is also pulled out at double speed or half speed, even if it is configured by slidably combining multi-stage rails, other rails are automatically pulled out in conjunction with the pulling operation of one rail. It is possible to pull out and store the rail smoothly.

When a movable door is fixed to the third rail of such a slide device and an intermediate door is fixed to the second rail to form a multi-stage slide door, when the movable door is moved, it interlocks with this. As a result, the intermediate door also moves at half speed, which makes it possible to configure a sliding door with smooth motion. Door 2
It can be opened and closed automatically with a double stroke, and the automatic opening and closing mechanism itself can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a slide device to which the present invention is applied.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing a second rail according to the embodiment.

FIG. 4 is a perspective view showing a disassembled state of the slide device according to the embodiment.

FIG. 5 is a diagram illustrating the operation of the slide device according to the embodiment.

FIG. 6 is a front view showing an open state of a multi-stage slide door configured using the slide device of the present invention.

FIG. 7 is an enlarged side view showing a state where the door is suspended from the slide device.

FIG. 8 is a front view showing a closed state of the multi-stage slide door shown in FIG.

[Explanation of symbols]

1 ... Ball, 10 ... 1st rail, 20 ... 2nd rail, 3
0 ... 3rd rail, 26 ... Pulley (deflecting body), 27 ... Wire (transmission member), 71 ... Movable door, 72 ... Intermediate door

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3B060 NB04 NC06 ND04 NE01 NE02                       NE06                 3J104 AA20 AA23 AA34 AA65 AA70                       AA74 AA76 AA77 BA41 BA72                       CA13 CA20 DA16 DA20

Claims (6)

[Claims] 1. A first rail attached to a fixed portion,
A second rail slidably fitted to the first rail via a large number of rolling elements, and a third rail slidably fitted to the second rail via a large number of rolling elements. While a pair of deflecting bodies is provided at both ends of the second rail in the sliding direction, an endless transmission member is laid around these deflecting bodies, and one of the transmitting members between the pair of deflecting bodies is provided. A feeding type slide device, wherein a part of the span is fixed to the first rail and a part of the other span is fixed to the third rail. 2. The first and third rails are formed in a channel shape having concave grooves, and are arranged so that the concave grooves provided in each are opposed to each other. 2. The feed-out type slide device according to claim 1, wherein the second rail and the transmission member are housed in a space formed by the concave grooves of the two. 3. The rolling elements for applying a load between the first rail and the second rail and the rolling elements for applying a load between the second rail and the third rail are respectively made of resin-made holding members. 3. The feeding type slide device according to claim 1, wherein the slide devices are arranged on the plate at a predetermined interval. 4. A fixed member provided with an auxiliary traveling wheel rotatably provided with respect to the third rail, a traveling path along which the auxiliary traveling wheel travels, and provided over the entire length of the sliding range of the third rail. The feeding type slide device according to any one of claims 1 to 3, further comprising a support frame. 5. A first rail attached to the fixed portion,
A second rail slidably fitted to the first rail via a large number of rolling elements, a third rail slidably fitted to the second rail via a large number of rolling elements, and a third rail It is composed of a movable door fixed to three rails and an intermediate door fixed to the second rail. A pair of deflecting bodies is provided at both ends of the second rail in the sliding direction, and these deflecting bodies are provided. An endless transmission member is laid around the one end, and a part of one span of the transmission member between the pair of deflecting bodies is fixed to the first rail, while a part of the other span is attached to the third rail. A multi-stage slide door, wherein the intermediate door is fixed and moves in conjunction with the movement of the movable door. 6. A fixed member having an auxiliary traveling wheel rotatably provided on the third rail, a traveling path along which the auxiliary traveling wheel travels, and provided over the entire length of the sliding range of the third rail. The multi-stage slide door according to claim 5, further comprising a support frame.