JP4025266B2 - slide door - Google Patents

Description

  The present invention relates to a sliding door (sliding door). In particular, the present invention relates to an airtight slide door that can seal a clearance between a lower edge of the door and a floor surface in a state where the door is closed. Here, air tight does not mean strict airtightness, but means that air circulation is limited to a certain extent (semi-air tight).

  Semi-air tight sliding doors are installed at the entrances and exits of laboratories and hospital rooms in food-related businesses, medical institutions, IT-related businesses, etc., where airtightness in the room is required. In such a slide door, a panel-like door body is suspended from an upper door cart, and the upper door wheel moves on a rail and slides between an open position and a closed position. During the sliding operation, the lower edge of the door body moves along the hull fixed to the building floor, but there is a gap between the lower edge of the door body and the hull during operation. When the door is closed, the space between the lower edge of the door body and the hull is sealed with a sealing mechanism.

As this sealing mechanism, the one provided with a seal body movable up and down at the lower edge of the door body is generally used. Some seal bodies move up and down by the action of a pair of magnets (see, for example, Patent Document 1). When the door is opened, the seal body is held at the upper standby position by the action of the magnet. When the door is closed, the adsorption (or repulsion) between the magnets is released by the stopper fixed to the lower rail. It descends and seals between the lower edge of the door body and the huller.
Or there exists what provided the slide frame which can move to the moving direction of a door in the lower edge of a door main body with a seal frame (seal body) (for example, refer patent document 2). When the door is closed, the slide frame comes into contact with a guide pin standing on the floor and stops, and then the door body and the slide frame relatively move, and the seal frame is lowered by the cam mechanism.

  When the seal body is lowered, the packing provided on the lower edge of the seal body is pressed against the upper surface of the hulling to seal the clearance between the lower edge of the door body and the hulling.

JP-A-8-303139 JP-A-10-220123

  In many cases, such a sliding door is such that the seal body descends only when the door is completely closed. Ideally, as soon as the door starts to open, the seal body rises and the pressing of the packing is released. In this case, it is possible to reduce the weight felt by the user as much as possible due to the frictional resistance between the packing and the hull when the door opening / closing operation is started.

  For this purpose, the position of a member (a stopper or a guide pin in the above example) for lowering the seal body in a position where the door is completely closed must be determined. Such stoppers and the like are provided on structures around buildings and doors (door frames and hulls fixed to buildings and floors). May have a tolerance of 3 mm. If there is such a tolerance, there may occur a case where the position of the stopper or guide pin provided in the structure shifts and the seal body descends in a state where the door is not completely closed. In this case, the user feels the weight due to the frictional resistance between the packing and the hull when the door opening / closing operation is started.

To date, there has been no sliding door that focuses on the fact that the seal body descends only when the door is completely closed, taking into account processing and mounting tolerances such as door frames and hulling.
Therefore, the present invention has a simpler structure, and the seal body can be lowered only when the door is completely closed, even if there is a processing / installation tolerance of the door frame and hulling, and the sealing performance is improved. An object of the present invention is to provide a sliding door capable of increasing the height.

The present invention has been made in view of the above problems, and can be moved on the rail 9 by hanging a panel-like door body (door panel 20 ) and the door panel 20 attached to the upper portion of the door panel 20. and a top door rollers 41, extends opposite the lower edge of the door panel 20, the shoe sliding 10 fixed to the building floor F, the door panel 20 provided at the lower edge, and the panel 20 the lower edge when the door is closed wherein the sealing mechanism 50 for sealing between the shoe sliding 10, a sliding door airtight formula (including Semieataito type) having a, the sealing mechanism 50 extends along the door panel 20 lower edge A seal member (packing 65 ), a mechanism 63 that guides the seal member 65 up and down and urges it downward, and is connected to the seal member 65 that rolls on the huller 10. A roller 71 that is, has, on the shoe sliding 10, recess 13, the roller 71 when the door closing drops and is formed, at the time of closing of the door panel 20 together with the roller 71 falls into the recess 13 The seal member 65 is urged downward, and the seal member 65 is pressed against the upper surface of the huller 10 to seal between the lower edge of the door panel 20 and the huller, and in the sliding direction of the door The mounting position of the roller 71 can be adjusted, and when the sliding door is installed, the position of the concave portion 13 of the huller 10 and the position of the roller 71 are matched when the door is completely closed. Adjust it,
When opening the door, the roller 71 moves on the huller 10 through the inclined surface of the recess 13, and as soon as the roller 71 is removed from the recess 13, the seal member 65 is moved to the huller 10. It floats from the upper surface .

  According to the present invention, the position of the roller can be adjusted in the sliding direction of the door even when the relative position of the seal roller and the hulling recess is shifted due to a mounting error or processing error of the door or hulling. It is possible to ensure that the roller enters the recess. Although the position of the hulling and the recess is difficult to change once the hulling has been installed, a mechanism can be provided so that the position of the roller can be adjusted relatively easily. By doing in this way, even when the position of the hulling, the concave portion, or the roller is shifted due to an attachment or processing error, it can be reliably sealed when the door is closed. Also, since the seal mechanism hits the hull only when it is almost completely closed, as soon as the door starts to open, the seal mechanism leaves the hull and is free of resistance, so a semi-air tight slide door that is easy to open and close is used. Can be provided.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, it demonstrates, referring drawings.
FIG. 1 is a front view showing a state of a sealing mechanism when the sliding door according to the embodiment of the present invention is closed. This figure is the figure which looked at the state which fractured | ruptured the panel of the sealing mechanism part.
First, the mounting state and structure of the entire sliding door will be briefly described.
2A and 2B are diagrams illustrating a state in which the sliding door is attached, in which FIG. 2A is a front view and FIG. 2B is a cross-sectional view.
The panel-shaped door body (door panel) 20 slides between the left and right door frames 1L and 1R provided on one surface of the wall W (the front surface and the other surface the back surface). The opening (entrance / exit) D opened in W is opened and closed. The left and right ends of the opening D are respectively defined by left and right opening frames 2L and 2R, and the upper and lower ends are respectively defined by upper and lower opening frames. The left opening frame 2L and the left door frame 1L are integrally formed. These frames are made of a steel plate, a stainless steel plate, or an aluminum plate.
A rail cover 3 is spanned between the upper ends of the left and right door frames 1L, 1R. A rail extending in the sliding direction of the door panel 20 is disposed in the cover (details will be described later). A huller 10 is laid on the building floor F between the lower ends of the left and right door frames 1L, 1R.

  As will be described in detail later, a door wheel is attached to the upper edge of the door panel 20, and a sealing mechanism (seal mechanism) that can move up and down is disposed on the lower edge. The door panel 20 slides between the left and right door frames 1 </ b> L and 1 </ b> R when the door wheel at the upper end of the door panel 20 runs on the rail. At this time, the sealing mechanism at the lower edge of the door panel 20 moves on the huller 10. Handles 21 are respectively provided on the front side and the back side of the door panel 20.

Next, the seal structure at the left and right edges of the door panel 20 will be described.
FIG. 3 is a plan sectional view showing a state of the door panel when the door is closed.
The door panel 20 has a rectangular frame 23 and is filled with a core 25 such as honeycomb material or urethane foam. The surface of the frame 23 is covered with a surface material 27. A hard resin 29 is fitted on the side surface of the door panel 20 on the door end side (left side in the drawing) over the height direction of the panel. Outside the hard resin 29, a door rubber (soft resin) 31 is disposed over the height direction of the panel. The door stop rubber 31 is a hollow member having a substantially semicircular cross section as shown in the figure. When the door is closed, the door rubber 31 hits the left door frame 1L. At this time, the door contact rubber 31 is deformed so as to be crushed, absorbs an impact when the door is closed, and seals between the left door frame 1L and the left side surface of the door panel 20.
Moreover, the aluminum flat bar 33 is being fixed over the height direction of the panel on the surface of the door panel 20 on the back side (right side in the drawing).

  An elastic member 5L is disposed on the front surface of the left opening frame 2L over the height direction of the opening. And the sealing member 6L is arrange | positioned in the surface of the near side of 5 L of elastic members over the height direction of opening. Further, the elastic member 5R is also disposed on the front surface of the right opening frame 2R over the height direction of the opening. And the sealing member 6R is arrange | positioned also in the surface of this side of this elastic member 5R over the height direction of opening. Each seal member 6 is provided with projecting pieces 7L and 7R protruding in the front direction.

  When the door is closed, the door stop rubber 31 on the door tip side of the door panel 20 hits the left door frame 1L and seals between the left side surface of the panel and the left door frame. Further, the projecting piece 7L of the seal member 6L provided on the left opening frame 2L hits the back surface of the door stop rubber 31, and seals between the panel and the left opening frame. On the other hand, the protrusion 7R of the seal member 6R provided on the right opening frame 2R hits the aluminum flat bar 33 of the door panel 20, and seals between the right end portion of the panel and the right opening frame.

  With this structure, when the door is closed, the left and right edges of the door panel 20 are sealed by the left and right sealing members 6 at the door rubber 31 and the aluminum flat bar 33.

Next, the structure of the upper and lower edges of the door panel 20 will be described in detail.
First, the structure of the upper edge of the door panel will be described.
FIG. 4 is a longitudinal sectional view showing the structure of the upper edge of the door panel.
Two door pulley mounting brackets 35 are fixed in the vicinity of the left and right end portions of the upper end surface of the door panel 20. Each door pulley mounting bracket 35 has an L-shaped cross section, one piece is fixed to the upper end surface of the door panel with a height adjustment spacer 37 with a screw 39, and the other piece is parallel to the surface of the door panel 20. It extends upward. An upper door 41 is rotatably attached to the upper piece by bolts 43 and nuts 45.

A rail frame 8 is fixed to a wall surface W above the upper ends of the left and right door frames. The rail frame 8 is provided with a rail 9 extending horizontally in the sliding direction of the door. An upper door 41 of the door panel 20 runs on the rail 9. The door panel 20 is supported in a state of being hung from the rail 9 by the upper door car 41, and slides when the door car 41 runs on the rail 9.
The upper edges of the rail frame 8 and the door panel 20 are covered with a rail cover 3.

  An elastic member 5T is disposed across the width of the opening D on the front surface of the upper opening frame 4T. A sealing member 6T is disposed on the front surface of the elastic member 5T. The seal member 6T is provided with a protruding piece 7T protruding toward the front side. When the door is closed, the protruding piece 7T of the seal member 6T hits the upper end of the rear surface of the door panel 20, and seals between the panel and the upper opening frame.

Next, a sealing mechanism for the lower edge of the door panel will be described.
First, the structure of the huller 10 will be described.
5A and 5B are diagrams showing the structure of the hulling, FIG. 5A is a plan view, and FIG. 5B is a front view.
The huller 10 is a hollow member bent into a U-shape, and is made of, for example, a stainless steel plate. The huller 10 extends between the left and right door frames on the floor surface with the U-shaped opening facing downward, and is fixed to the building floor F by brackets 11 at four to six locations. Concave portions 13-1 and 13-2 are formed at two locations on the upper surface of the huller 10. The position of the recess 13 is a position where a roller (detailed later) of the sealing mechanism of the panel 20 reaches when the door panel 20 is completely closed. The bottom surface of the recess 13 has a rectangular shape that is slightly longer in the length direction of the hulling, and the side surfaces around the bottom surface gradually incline upward from the bottom surface toward the upper surface of the hulling. For example, the depth D of the recess 13 is 3.5 mm, the slide direction length L1 of the bottom surface is 18 mm, and the length L2 of both side surfaces on the slide direction side is 10 mm.

  A guide roller 15 for guiding the sliding of the door panel 20 is disposed between the concave portions 13 on the upper surface of the huller 10. The guide roller 15 rotates around the shaft 17 erected in the height direction of the door from the upper surface of the hulling.

Next, the sealing mechanism 50 will be described.
6A and 6B are diagrams illustrating the structure of a single sealing mechanism. FIG. 6A is a plan view and FIG. 6B is a front view.
7A and 7B are diagrams showing the structure of the roller of the sealing mechanism in FIG. 6. FIG. 7A is a front view and FIG. 7B is a side view.
8A and 8B are views for explaining a state where the sealing mechanism of FIG. 6 is attached to the door panel. FIG. 8A is a cross-sectional view taken along the line II, and FIG. 8B is a cross-sectional view taken along the line II-II.
As shown in FIGS. 8A and 8B, in the door of this example, the door panel 20 is suspended from the rail 9 by the upper door wheel 41, and the lower edge of the panel floats from the huller 10. It is in the state. And the sealing mechanism 50 provided in the lower edge of the door panel 20 is lowered only when the door is closed, and hits the huller 10.

  As shown in FIG. 8, a channel 49 is formed on the lower end surface of the door panel 20 over the width of the panel. The sealing mechanism 50 is disposed over the width direction of the door panel 20 along the wall on the back side (right side in the drawing) in the channel 49. The sealing mechanism 50 includes a fixing member 51 fixed in the channel, and a moving member 53 provided to be movable up and down with respect to the fixing member 51. The length of the fixed member 51 is shorter than the length of the moving member 53, and as shown in FIG. 6, both end portions 53a of the moving member 53 protrude from both ends of the fixed member.

  As shown in FIG. 8A, the fixing member 51 is disposed in contact with the inner wall of the channel 49 of the door panel 20 and is fixed to the upper end surface of the channel 49 with a screw 55. A channel 57 is formed on the lower surface of the fixing member 51 over the length direction of the member. The moving member 53 is disposed in the channel 57 and is attached to the fixing member 51 by bolts 61 in the vicinity of the left and right ends of the fixing member 51. The bolt 61 is inserted from the core 25 of the door panel 20 into the channel 57 of the fixing member 51, and the lower end thereof is screwed to the upper end surface of the moving member 53. Thereby, the moving member 53 is guided in the channel 57 of the fixed member 51 by the bolt 61 and moves in the vertical direction. In the channel 57, a spring 63 is passed through the outer periphery of the bolt 61 between the upper end surface of the channel 57 and the upper surface of the moving member 53. The spring 63 biases the moving member 53 downward with respect to the fixed member 51.

  A packing (seal member) 65 is attached to the lower end surface of the moving member 53 over the length direction of the member (the width direction of the door panel). As shown in FIG. 8, the packing 65 has a hollow shape with a substantially circular cross section, and projecting pieces 67 are provided on the back side and the near side along the length direction of the moving member. When the packing 65 is pressed in the vertical direction, it is crushed in the horizontal direction in the figure.

  As clearly shown in FIG. 6, a roller assembly 70 that runs on the hull is attached to the vicinity of both left and right ends of the moving member 53 (portions protruding from both ends of the fixed member). As shown in FIG. 7, the roller 71 is attached so as to be rotatable around a shaft 75 extending from the bracket 73. For example, the diameter of the roller 71 is 23 mm. The upper half of the roller 71 is covered with a casing 77 fixed to the bracket 73. Two long holes 79 extending in the lateral direction (the sliding direction of the door) are formed in the upper portion of the bracket 73. The roller assembly 70 is attached by screws 81 (see FIG. 6) to the left and right ends 53a of the moving member 53 through these long holes 79. At this time, the position of the roller assembly 70 in the sliding direction with respect to the moving member 53 can be adjusted by the length of the long hole 79 (details will be described later).

  With such a structure, the moving member 53 can move up and down in the channel 57 of the fixed member 51 (in the channel of the door panel). The roller assembly 70 can be adjusted by the length of the long hole 79 in the width direction of the door panel 20.

  In addition, as shown in FIG. 8, the near side of the fixing member in the channel 49 of the door panel 20 is a space. In this space, a guide roller 15 erected from the huller 10 enters. The diameter of the guide roller 15 is substantially equal to the width of this space. When the door slides, the door panel 20 is guided straight in the sliding direction by the guide roller 15 without being swayed in the front-rear direction (door thickness direction).

Next, the movement of the sealing mechanism during sliding and closing of the door will be described with reference to FIG.
When the door is slid, as shown in FIG. 8A, a gap S1 having a certain width (for example, 7 mm) is opened between the lower end of the door panel 20 and the upper surface of the huller 10. The moving member 53 is biased downward by a spring 63, and each roller 71 (not shown in FIG. 8A) hits the upper surface of the hulling 10 and rolls on the same surface. ing. At this time, a gap S <b> 2 having a certain width (for example, 2 mm) is also opened between the lower surface of the packing 65 attached to the lower end surface of the moving member 53 and the upper surface of the huller 10. During the sliding operation, the door panel 20 is guided straight in the sliding direction by the guide roller 15 without being shaken in the front-rear direction.

With reference to FIG. 1, the sealing mechanism at the time of closing of the sliding door which concerns on embodiment of this invention is demonstrated. This figure is the figure which looked at the state which fractured | ruptured the panel of the sealing mechanism part.
When the two rollers 71 of the door panel 20 reach the respective recesses 13 of the huller 10 at the door closing position, the respective rollers 71 fall into the respective recesses 13. Then, as shown in FIG. 8B, the moving member 53 urged downward by the spring 63 is lowered by the depth of the recess 13 with respect to the fixed member 51, that is, the door panel 20. To do. Since the depth (3.5 mm) of the recessed portion 13 is larger than the width (2 mm) of the clearance S2 between the lower surface of the packing 65 attached to the lower end surface of the moving member 53 and the upper surface of the huller 10, the roller 71 is recessed. When it falls to 13, the packing 65 is pressed against the upper surface of the huller 10. Then, the packing 65 is crushed and deformed on the upper surface of the huller 10, and seals between the lower end of the door panel 20 and the upper surface of the huller 10. At this time, since the packing 65 is pressed not only on the contact surface with the upper surface of the huller 10, but also the both projecting pieces 67 of the packing 65 are pressed against the upper surface of the huller 10 on the near side and the inner side of the contact surface, the sealing performance is further improved. To do.

  However, if the positions of the recesses 13 of the huller 10 and the rollers 71 of the door panel 20 are shifted, the door may not be completely closed. Further, even if the door is closed, one roller 71 of the door panel 20 may not completely fall into the hulled recess 13 but may be placed on an inclined side surface, for example. Then, the moving member 53 is not lowered completely, and the packing 65 does not reach the upper surface of the huller 10 or the pressing force of the packing 65 against the hulling is not sufficient, and the gap between the lower end of the door panel 20 and the upper surface of the huller is not clear. Will open and sufficient sealing will not be achieved.

  For such a problem, it is also possible to absorb the positional deviation of the huller 10 by providing a margin in the sliding direction length of the bottom surface of the recess 13. However, if this is done, the roller 71 of the door panel 20 may move within the recess 13 and the door may not be completely closed. Further, when the door opening / closing operation is started / completed, the length of the packing 65 that is dragged while being pressed against the huller 10 becomes longer, and the weight due to the frictional resistance between the packing 65 and the huller 10 is felt. Stroke becomes long.

  Therefore, in the sliding door of the present invention, when the position of the hulling recess is shifted as described above, the sliding direction position of the roller 71 of the door panel 20 is adjusted. That is, as shown in FIG. 1, the roller assembly 70 is movable in the sliding direction by the length of the long hole 79 with respect to the sealing mechanism 50 as described above. Therefore, for example, when the slide door is installed, the roller assembly so that the position of each recess 13 of the huller 10 matches the position of each roller 71 of the door panel 20 when the door is completely closed. The position of 70 is adjusted in advance in the long hole 79. Although the position of the huller 10 and the position of the recess 13 on the huller cannot be easily changed, according to this method, the position of each roller 71 can be easily adjusted independently. The adjustable length of the roller 71 (effective length of the long hole 79) is, for example, −3 to +3 mm.

  When the door is closed, the roller 71 hardly moves in the sliding direction and the front-rear direction in the recess 13. And when opening a door, since the roller 71 moves on the huller 10 through the inclined side surface of the recessed part 13, it can move a door with small force along an inclined surface. Further, as soon as the roller 71 is removed from the recess 13, the packing 65 floats from the upper surface of the hull 10, so that the user can feel a short stroke for feeling the frictional force between the packing 65 and the hull 10.

It is a front view which shows the state of the sealing mechanism at the time of closing of the slide door which concerns on embodiment of this invention. It is a figure which shows the state in which the slide door was attached, FIG. 2 (A) is a front view, FIG.2 (B) is sectional drawing. It is a plane sectional view showing the state of a door panel at the time of door closing. It is a longitudinal cross-sectional view which shows the structure of a door panel upper edge. It is a figure which shows the structure of a hulling, FIG. 5 (A) is a top view, FIG.5 (B) is a front view. It is a figure explaining the structure of a sealing mechanism single-piece | unit, FIG. 6 (A) is a top view, FIG.6 (B) is a front view. It is a figure which shows the structure of the roller of the sealing mechanism of FIG. 6, FIG. 7 (A) is a front view, FIG.7 (B) is a side view. FIGS. 8A and 8B are views illustrating a state where the sealing mechanism of FIG. 6 is attached to the door panel, FIG. 8A is a cross-sectional view taken along the line II, and FIG. 8B is a cross-sectional view taken along the line II-II.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door frame 2 Opening frame 3 Rail cover 4 Upper opening frame 5 Elastic member 6 Seal member 7 Protruding piece 8 Rail frame 9 Rail 10 Hail slide 11 Bracket 13 Recess 15 Guide roller 17 Shaft 20 Door panel 21 Handle 23 Frame 25 Core 27 Surface material 29 Hard resin 31 Rubber 33 Aluminum flat bar 35 Bracket 37 Height adjustment spacer 39 Screw 41 Upper door wheel 43 Bolt 45 Nut 49 Channel 50 Sealing mechanism 51 Fixing member 53 Moving member 55 Screw 57 Channel 61 Bolt 63 Spring 65 Packing 67 Projection piece 70 Roller assembly 71 Roller 73 Bracket 75 Shaft 77 Casing 79 Long hole 81 Screw

Claims (2)

A panel-like door body (door panel 20 );
An upper door rollers 41 movable on the rails 9 hanging the door panel 20 attached to an upper portion of the door panel 20,
A huller 10 fixed to the building floor F , extending opposite the lower edge of the door panel 20 ;
And the door panel 20 provided on the lower edge, sealing mechanism 50 for sealing between the panel 20 the lower edge when the door closed and the shoe sliding 10,
An air tight type (including semi air tight type) sliding door comprising:
The sealing mechanism 50 is
A seal member (packing 65 ) extending along the lower edge of the door panel 20 ,
A mechanism 63 that guides the seal member 65 up and down and biases it downward,
A roller 71 connected to the seal member 65 that rolls on the huller 10 ,
On the huller 10 , a recess 13 is formed in which the roller 71 falls when the door is closed,
When the door panel 20 is closed, the roller 71 falls into the recess 13 and the seal member 65 is urged downward, and the seal member 65 is pressed against the upper surface of the huller 10 to form a lower edge of the door panel 20. Sealing between the hulling,
The mounting position of the roller 71 can be adjusted in the sliding direction of the door ,
When installing the sliding door, in a state where the door is completely closed, the position of the concave portion 13 of the huller 10 and the position of the roller 71 are adjusted,
When opening the door, the roller 71 moves on the huller 10 through the inclined surface of the recess 13, and as soon as the roller 71 is removed from the recess 13, the seal member 65 is moved to the huller 10. A sliding door that floats from the top . The seal mechanism 50 includes a fixing member 51 fixed to the door panel 20 and a moving member 53 provided so as to be movable up and down with respect to the fixing member 51.
  The sealing member 65 is attached to the lower end surface of the moving member 53 over the width direction of the door panel 20.
  The length of the fixed member 51 is shorter than the length of the moving member 53, and both end portions of the moving member 53 protrude from both ends of the fixed member 51,
  The sliding door according to claim 1, wherein the roller (71) is rotatably attached to a portion of the moving member (53) protruding from both ends of the fixed member (51).

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