JP4147104B2 - Opening and closing device for sliding door type door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open / close holding device for a sliding door type door, and more particularly, an automatic or manual sliding door type door opening / closing state in which the closed or open state is maintained in a fully closed state or fully opened state. The present invention relates to a holding device.
[0002]
[Prior art]
Conventionally, in the case of a sliding door type automatic door, if the energization to the motor of the door driving device is turned off when the door reaches the fully closed position, the driving force in the door closing direction is lost, so the belt of the driving device (transmission) Mechanism) and the elasticity of the rubber provided at the door end, the door returns to the open side, or the gap between the door end portion and the vertical frame is combined with the poor installation of the vertical frame. As a result, the airtightness is deteriorated, and not only the air conditioning effect is lowered but also the appearance is impaired.
In order to eliminate the inconvenience, a so-called “always pressing” operation is performed in which the electric motor of the driving device is continuously energized by the push circuit to continuously apply the driving force on the closing side to the door even when the door is fully closed.
[0003]
However, the fully-closed holding operation by the above-mentioned “always press” affects the durability of the drive device due to the temperature rise of the electric motor, and the power consumption increases and there is a problem in energy countermeasures. A door device disclosed in Document 1 has been proposed.
That is, in Patent Document 1, a suction stopper 3 made of a permanent magnet is fixed to the fixed side 2A, and a suction portion 4 that hits the suction stopper 3 at the fully open position or the fully closed position of the door portion 1 is provided on the door portion 1, There is disclosed a sliding door type automatic door fully open or fully closed holding device in which the portion 4 and the suction stopper 3 are attracted to each other by the force of a permanent magnet.
[0004]
However, in the above-described conventional apparatus, when the door portion 1 reaches the fully open position or the fully closed position, the suction portion 4 and the suction stopper 3 are sucked, that is, the suction portion 4 hits the suction stopper 3 and is joined. For this reason, there has been a problem that an unpleasant noise is caused by generating an adsorbing sound (metal sound that comes into contact with both members) due to the adsorbing.
Further, when the door portion 1 is stopped at the fully open position or the fully closed position, the suction portion 4 and the suction stopper 3 are attracted so that the suction state is released (separated) and the door portion 1 is closed or opened. It requires a great deal of force when operating. In particular, as shown in FIGS. 1 to 3 of Patent Document 1, in the structure in which the suction portion 4 and the suction stopper 3 abut against each other in the traveling direction of the door portion 1, a large force is required to separate the two members, and the fully open state. This is remarkable when the adsorption force is increased to ensure the state or the fully closed state. Therefore, in the case of an automatic door, there exists a malfunction which must install the drive device with a big drive force.
[0005]
In addition, the door is a manual door that does not have a drive device, for example, a manual door used at the entrance of a hospital room or toilet, and the door hanger door wheel is suspended so that it can run on a door wheel rail that is inclined downward in the closing direction. Even in a simple self-closing manual opening door, it is convenient to temporarily hold the door in the fully open position so that a wheelchair patient can pass safely, but the conventional fully open holding device using a permanent magnet for the door is convenient. I didn't find any technology.
[0006]
[Patent Document 1]
Japanese Unexamined Patent Publication No. 2000-130020 (see the specification and FIGS. 1 to 3)
[0007]
[Problems to be solved by the invention]
In view of the above-described conventional circumstances, the present invention eliminates the problems and inconveniences, and does not generate a suction sound when the automatic door is held in the fully closed position or the fully open position, and the opening operation from the fully closed state or the fully open state or It is an object of the present invention to provide an open / close holding device using a permanent magnet that can smoothly start the closing operation with a light force.
Further, the present invention provides a fully open holding device using a permanent magnet that enables a door to be held in a fully open position in a simple self-closing manual opening door, and that can be closed with a light force without generating an attracting sound. The purpose is to provide.
Another object of the present invention is to protect a permanent magnet and adjust its magnetic force, and to facilitate the installation of a member to which the permanent magnet is attached.
[0008]
[Means for Solving the Problems]
Such a sliding door type door opening and closing holding device of the present invention is provided with a stationary suction portion on the fixed side of a frame body equipped to be able to open and close the door, and the stationary suction portion is in the fully closed position or the fully opened position of the door. The stationary suction part and the movable suction part are suctioned and held in the fully closed position or the fully open position of the door by the suction force of the permanent magnet attached to one or both of them. The permanent magnet is fitted with a nonmagnetic protective cover, and is attracted and held at a position where a predetermined gap is interposed between the protective cover and the opposing suction portion.
That is, when the door stops at the fully closed position or the fully opened position, the stationary suction portion and the movable suction portion are sucked in a non-contact state with a predetermined gap by the suction force of the permanent magnet. Is held in a fully closed state or a fully open state.
[0009]
As the permanent magnet, a general ferrite-based magnet may be used, but a magnet mainly composed of neodymium, boron, or iron having a strong magnetic force is preferably used.
The permanent magnets, either the stationary suction part and the movable suction unit, or respectively both Ru attachment arranged so as to face each other opposite pole.
Also, Ru allowed fitted on the protective cover for the permanent magnets.
Thereby, it is possible to adjust the attractive force of the permanent magnet by selecting the thickness of the protective cover, and to prevent the permanent magnet from being damaged even when the stationary suction part and the movable suction part come into contact with each other. Moreover, when the stationary suction part and the movable suction part are attracted, both members are easily separated.
[0010]
As a specific mode when the opening and closing holding device is applied to an automatic door, the door is provided with a driving device and a door roller rail within the door, and a door hanger door wheel is suspended on the door wheel rail so as to be able to travel. an automatic door that is, the stationary suction portion is provided in a fixed supporting bracket attached to the door roller rail, the movable suction unit shall be the structure provided in the door hanger.
More specifically, the permanent magnet is provided only in the stationary suction portion, and the movable suction portion is formed integrally or integrally with the door hanger. Thereby, replacement | exchange of a permanent magnet can be made easy.
[0011]
In addition, as a specific mode when applied to a simple manual door that does not include a drive device, the door is a self-closing type in which a door hanger door wheel is suspended so as to be able to travel on a door wheel rail inclined downward in the closing direction. a manual open door, and said stationary suction part and the movable suction unit you like to suck held in the fully open position of the door.
In this manual opening door, the stationary suction portion and the movable suction portion are held by the suction force of the permanent magnet in a non-contact state only at the fully open position of the door.
Even in this case, it is preferable that the permanent magnet is provided only in the stationary suction portion, and the movable suction portion is formed integrally or integrally with the door hanger.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an arrangement configuration when applied to an automatic door.
In FIG. 1, reference numeral 1 denotes a frame constructed at the entrance / exit part, and a gate-like entrance / exit frame is formed by disposing a mesh 2 on the upper part, and a door part 3 is formed at the opening of the frame 1. It can be opened and closed. In addition, the door part 3 in a figure illustrates the case of the double sliding door system comprised by door 3a, 3b.
[0013]
The base plate 4 having a lower end edge formed with a door rail 4a is fixedly attached to the above-described seamless plate 2, and a driving device 5 is disposed on the base plate 4, and the door rail 4a is connected to an upper wall of the door 3a. The door hangers 6a, 6b attached to the door hanger and the door hangers 8a, 9b of the door hangers 7a, 7b attached to the upper arm of the door 3b are suspended so as to be able to run.
The drive device 5 includes an engine (motor and speed reducer) 10 as a power source, a control unit 11, a drive pulley 12, a driven pulley 13, a transmission belt 14, and the like, and the transmission belt 14 grips the belts of the doors 3a and 3b. 15a and 15b are connected.
[0014]
The automatic door has a well-known structure that opens and closes the door 3 by moving the doors 3a and 3b in the reverse direction when the engine 10 controlled by the controller 11 is driven. The fully closed position is indicated by a solid line (reference symbol CP is a fully closed door contact position), and the fully open position of the doors 3a and 3b is indicated by a two-dot chain line (reference symbol OP is a fully open door stop position).
[0015]
The door rail 4a of the base plate 4 which is the fixed side of the frame 1 is provided with a holding metal fitting 20a for attaching the stationary suction part 21a and a holding metal fitting 20b for attaching the stationary suction part 21b in the vicinity of the fully closed door contact position CP. In addition, the holding metal fitting 30a for attaching the stationary suction part 31a and the holding metal fitting 30b for attaching the stationary suction part 31b are individually arranged in the vicinity of the left and right fully opened door contact positions OP.
On the other hand, the movable door portion 3 is provided with a movable suction portion on the door hanger facing the stationary suction portions 21a, 21b, 31a, 31b in the shortest time.
Specifically, the movable suction part 25a is provided on the door hanger 6b of the door 3a, the movable suction part 25b is provided on the door hanger 7a of the door 3b, and the movable suction part 35a is provided on the door hanger 6a of the door 3a. The movable suction part 35b is provided in the door hanger 7b of 3b.
[0016]
The stationary suction part 21a of the holding metal fitting 20a and the movable suction part 25a of the door hanger 6b and the stationary suction part 21b of the holding metal fitting 20b and the movable suction part 25b of the door hanger 7a are paired with each other, and all of the doors 3a and 3b are assembled. A fully-closed holding device that is opposed to the closed position with a predetermined gap is configured.
Further, the stationary suction part 31a of the holding metal fitting 30a and the movable suction part 35a of the door hanger 6a, and the stationary suction part 31b of the holding metal fitting 30b and the movable suction part 35b of the door hanger 7b are combined to form the doors 3a and 3b. The fully open holding device is configured to face each other with a predetermined gap at the fully open position.
[0017]
Each set 21a and 25a, 21b and 25b, 31a and 35a, and 31b and 35b of the stationary suction part and the movable suction part have the same configuration except that they are symmetrically arranged. A set of the suction portion 21b and the movable suction portion 25b will be described with reference to FIGS. 2 to 4 and description of other sets will be omitted.
[0018]
In FIG. 2 to FIG. 4, the holding metal fitting 20 b is formed by bending side plates 201, 202 integrally on the left and right sides of a vertical support plate 200, and providing a bent portion 203 to enlarge one side plate 202 from the other. A metal fitting in which a bottom plate 204 is formed at the bottom, and a stationary suction portion 21b is provided on the side plate 202.
The side plates 201 and 202 are portions where the lower edge thereof is mounted on the upper surface of the door rail 4a, and a fitting portion 205 is formed on the lower edge so as to be hooked on the door rail 4a (see FIG. 4). The bottom plate 204 is a portion disposed below the door rail 4a, and is horizontally positioned between the side plates 201 and 202 and spaced from the lower ends thereof.
[0019]
The stationary suction portion 21 b is configured by screwing the permanent magnet 21 on the outer surface of the side plate 202 of the holding metal fitting 20 b and fitting a protective cover 22 on the outer periphery of the permanent magnet 21.
As the permanent magnet 21, a magnet composed mainly of neodymium, boron, and iron having a strong magnetic force is used as a disk, so that the stationary attracting portion 21 b can be made compact.
The protective cover 22 is made of a nonmagnetic material such as aluminum or plastic, and the thickness of the protective cover 22 is changed to adjust the attractive force of the permanent magnet 21. The protective cover 22 is fixed to the permanent magnet 21 via an adhesive.
[0020]
The holding bracket 20b is formed by tightening the bottom plate 204 to the bottom surface of the door roller rail 4a with a bolt 206 in a state where the side plates 201, 202 are placed on the door wheel rail 4a at a predetermined position near the fully closed door contact position CP of the door. , Fixed to the door rail 4a. Thereby, the stationary suction part 21b is disposed on the door rail 4a with the protective cover 22 facing the movable suction part 25b.
[0021]
The case where the movable suction part 25b is provided integrally with the door hanger is illustrated.
The door hanger 7a is a metal magnetic material such as iron, and has a side edge extending in an L shape in plan view so as to integrally form a movable suction portion 25b protruding on the door rail 4a.
In addition, when using the existing door hanger, the structure which attaches the movable suction part 25b separately, specifically, the movable suction part 25b is formed in L shape, and it is bolted to one side part of the door hanger. It is also possible to attach by doing.
[0022]
The movable suction part 25b is movable with the protective cover 22 in a non-contact position with the protective cover 22 of the stationary suction part 21b in a state where the door 3b reaches the fully closed position (fully closed door contact position CP) and stops. It is set so that a predetermined gap S is interposed between the suction part 25b.
When the door 3b reaches the fully closed position (fully closed door contact position CP), the door 3b stops at the fully closed position by contact with the door stop (not shown) or the door 3a. Even when the door stop position OP) is reached, it comes into contact with a door stop (not shown) and stops at the fully open position.
[0023]
The gap S is appropriately selected according to the magnetic force of the permanent magnet 21, but secures a suction force required to suck and hold the movable suction portion 25b by the stationary suction portion 21b, and at the same time, the door 3b starts to open. Sometimes, the driving force of the engine 10 sets the movable suction part 25b to a value that can be separated from the stationary suction part 21b. Specifically, the thickness is set to 1 to 5 mm, preferably about 2 to 4 mm in consideration of the weight of the door 3a, the attractive force of the permanent magnet 21, and the like.
In the case of the gap S of this level, the stationary suction part 21b may be attracted to the movable suction part 25b during the work of attaching and adjusting the holding bracket 20b to the door roller rail 4a. What is necessary is just to adjust the attachment position of the holding | maintenance metal fitting 20b, pinching | interposing a thin nonmagnetic material between the stationary suction part 21b.
[0024]
In addition, it is preferable that the stationary suction portion 21b is attached so that the interval between the permanent magnet 21 and the side plate 202 can be adjusted instead of the structure in which the permanent magnet 21 is simply screwed to the outer surface of the side plate 202. For example, as shown in the drawing, a bolt 23 is integrally projected through the permanent magnet 21, the bolt 23 is screwed into the side plate 202, and tightened by a lock nut 24 to be positioned and fixed.
Thereby, the bolt 23 is moved forward or backward to adjust the distance between the permanent magnet 21 and the side plate 202, that is, the predetermined gap S is adjusted, with the holding metal fitting 20b attached and fixed to the door rail 4a. Can do.
[0025]
Thus, the fully-closed holding operation of the automatic door will be described. When the doors 3a and 3b are closed by the driving device 5 and reach the fully-closed position (see the solid line state in FIG. 1), the doors 3a, 3b, The 3b movable suction portions 25a and 25b face the stationary suction portions 21a and 21b with a predetermined gap S therebetween. In this state, the movable suction portions 25a and 25b are sucked and held by the suction force of the permanent magnets 21 and 21 of the stationary suction portions 21a and 21b.
Therefore, the automatic door can turn off the energization of the drive device 5 while the door portion 3 is in the fully closed state.
When the doors 3a and 3b are opened again, the energization of the driving device 5 is turned on, and the doors 3a and 3b are moved while the movable suction portions 25a and 25b are separated from the stationary suction portions 21a and 21b by the driving force. Move in the opening direction.
[0026]
Further, the fully open holding operation of the automatic door will be described. When the doors 3a and 3b are opened by the driving device 5 and reach the fully open position (see the two-dot chain line state in FIG. 1), the doors 3a and 3b The movable suction portions 35a and 35b face the stationary suction portions 31a and 31b with a predetermined gap S therebetween.
In this state, as in the case described above, the movable suction portions 35a and 35b are sucked and held by the suction force of the permanent magnets 21 and 21 of the stationary suction portions 31a and 31b. The door can turn off the energization of the drive device 5, and when the doors 3 a and 3 b are closed again, the energization of the drive device 5 is turned on and the movable suction parts 35 a and 35 b are driven by the driving force. The doors 3a and 3b move in the closing direction while being separated from the stationary suction portions 31a and 31b.
[0027]
In addition, in FIG. 1, although the mode in the case of performing a fully-closed holding operation and the case of performing a fully-opened holding operation has been described, it is not always necessary. In a general automatic door, the door portion 3 is not fully opened. Since the closing operation is started from the fully open position without maintaining the state, the fully open holding device can be omitted.
Further, in the type of automatic door that performs the fully open holding operation, the door unit 3 normally turns off the drive device 5 at the fully open position, but in that case as well, the movable suction unit 35a is also described later. , 35b and the stationary suction portions 31a, 31b have an effect by non-contact suction.
[0028]
Next, with reference to FIG. 5, a mode of the fully open holding device in the simple type manual door will be described.
[0029]
In FIG. 5, a door wheel rail 44 that is inclined downward in the closing direction of the door 43 (arrow A) is disposed in the frame 42 of the frame body 41 that constitutes the doorway. The door hangers 46a and 46b attached to the door hangers 48 and 49 are suspended so as to be able to run.
This manual door is opened by manually pushing and opening the door 43 in the opening direction (arrow B), and the door 43 is automatically closed along the inclination of the door roller rail 44 by releasing the hand from the door 43. It is a self-closing manual opening door.
[0030]
And the stationary suction part 51b supported by the holding | maintenance metal fitting 50b is fixed and attached to the inclination upper end side of the said door wheel rail 44, The movable suction part 55b is arrange | positioned at the said door hanger 46b.
The holding metal fitting 50b, the stationary suction part 51b and the movable suction part 55b have the same configuration as the holding metal fitting 20b, the stationary suction part 21b and the movable suction part 25b shown in FIGS. Therefore, it has the same configuration as the holding metal fitting 30b, the stationary suction part 31b, and the movable suction part 35b in FIG.
[0031]
The door 43 is set to stop at a fully open position (refer to a two-dot chain line) by a door contact (not shown). In the fully open position, the movable suction portion 55b is fixed to the stationary suction portion 51b, more specifically, a protective cover. They face each other with a predetermined gap S therebetween.
Therefore, the door 43 can be temporarily held in the fully opened state by the suction action by the non-contact between the movable suction part 55b and the stationary suction part 51b. The movable suction part 55b is separated from the stationary suction part 51b by gently pulling the door 43 in the closing direction by hand, and the door 43 is self-closed along the inclination of the door roller rail 44.
[0032]
In addition, in the said embodiment, although the case of the double sliding door system was illustrated as an automatic door, it is natural that a sliding door of a single opening system may be sufficient.
[0033]
【The invention's effect】
According to the present invention, when the door is held in the fully closed position or the fully opened position, the stationary suction portion and the movable suction portion are sucked in a non-contact state with a predetermined gap by the suction force of the permanent magnet. , together with effective to noise reduction for automatic door without generation of conventional such adsorption sounds, Ru can occupy not minimize the driving force when starting the subsequent opening operation or closing operation.
In addition, the above-mentioned noise reduction is the same for a simple self-closing hand-opening door, and it is possible to perform a closing operation with a light force after being temporarily held at a fully-open position, which is used in hospitals and the like. Ru it is possible to improve the utilization on the benefits of the closed door.
[0034]
Then, either the stationary suction part of the permanent magnet and the movable suction unit, preferably by attaching a stationary suction unit, mounting workability and replacement of the permanent magnet Ru facilitates der.
In addition, since the permanent magnet is covered with a protective cover that is a non-magnetic material, it is possible to adjust the attractive force of the permanent magnet with the protective cover and prevent damage to the permanent magnet. Even when both members are adsorbed during the adjustment of the movable suction portion, the durability and handling usability of the member can be improved.
[Brief description of the drawings]
FIG. 1 is a front view showing an installation configuration in which the device of the present invention is applied to an automatic door.
FIG. 2 is an enlarged partial front view of a main part of the device of the present invention.
FIG. 3 is a partially cutaway plan view of FIG. 2;
4 is a partial sectional side view of FIG. 2. FIG.
FIG. 5 is a front view showing an installation configuration in which the device of the present invention is applied to a self-closing hand-open door.
[Explanation of symbols]
1: Frame body 3a, 3b: Door 5: Drive device 4a: Door roller rail 6a, 6b, 7a, 7b: Door hanger 8, 9: Door wheel 20a, 20b, 30, 30b: Holding brackets 21a, 21b, 31a, 31b: Stationary suction portions 25a, 25b, 35a, 35b: movable suction portion 21: permanent magnet 22: protective cover S: gap 41: frame body 42: seamless 43: door 44: door roller rail 46a, 46b: door hanger 48, 49: Door pulley 50b: holding bracket 51b: stationary suction part 55b: movable suction part

Claims (3)

A stationary suction part is provided on the fixed side of the frame body that is equipped with a door that can be opened and closed, and the door is provided with a movable suction part that faces the stationary suction part in its fully closed position or fully opened position, The movable attracting part is attracted and held in the fully closed position or the fully opened position of the door by the attracting force of the permanent magnet attached to either one or both , and the permanent magnet has a protective cover that is a non-magnetic material. A sliding door type door opening and closing device that is fitted and sucked and held at a position where a predetermined gap is interposed between the protective cover and the suction portion on the opposite side .   The door is an automatic door in which a driving device and a door rail are disposed in a seamless manner, and a door hanger door wheel is suspended on the door wheel rail so that the door hanger can travel, and the stationary suction portion is attached and fixed to the door rail. The sliding door type door opening and closing holding device according to claim 1, wherein the movable suction portion is provided on a door hanger. The door is a self-closing manual opening door in which a door hanger door wheel is suspended so as to be able to travel on a door wheel rail inclined downward in the closing direction, and the stationary suction portion and the movable suction portion are at a fully opened position of the door. 2. The sliding door type opening and closing holding device according to claim 1, wherein the holding and holding device is sucked and held .

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