JPH0754544Y2 - Door device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device provided with a guide body for guiding a door body that hermetically closes an airtight chamber by sliding movement.

[0002]

2. Description of the Related Art Conventionally, as a door device of this type, for example, an inlet of a greenhouse which is set to a predetermined temperature is slidably supported by a hanging member and guided by a guide roller at the lower edge of the inlet. It is known that the door body is closed airtightly.

In this door device, a rail is provided on the wall of the greenhouse to be located near the upper edge of the entrance opening from the floor, and a suspension member having wheels on the rail can be run on the rail. Is attached to. Then, the hanging member is provided with a flexible airtight body such as rubber along the periphery thereof, and a door body filled with a heat insulating material is movably supported along the plane direction of the entrance of the greenhouse. ing. Further, a plurality of cylindrical guide rollers having an insertion hole in the center axis are rotatably attached to the floor surface near the lower edge of the entrance of the greenhouse by a mounting member such as a bolt inserted into the insertion hole.
Further, an engaging recess formed in a groove shape along the width direction at the lower end of the door body is engaged with the guide roller to support the door body.
Then, while sliding the door body along the rail while guiding the lower end of the door body to the guide roller, in the vicinity of the vicinity where the door body closes the opening, the guide roller is pushed to the position where the door body is pressed toward the inlet side. It is arranged so that the door is pressed against the entrance to open and close the entrance to the greenhouse.

[0004]

However, in the door device having the above-described structure, when the guide roller is attached to the floor surface, a hole for fixing the attachment member for rotatably attaching the guide roller to the floor surface is formed at a predetermined position. , Since the mounting member is mounted in this hole through the insertion hole of the guide roller,
There is a problem that the precision of the position for forming the hole is required and the work for forming the hole is complicated. Furthermore, the position of the guide roller is displaced due to the displacement of the hole position, and the door body whose lower end is guided by this guide roller is not slidably moved in a predetermined orbit. Therefore, the airtight body attached to the door body is There is also a problem that it may not be possible to hermetically close the greenhouse by not adhering to the periphery of the inlet of the greenhouse.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a door device which can easily position and attach a guide roller and can reliably close an airtight chamber.

[0006]

In the door device of the present invention, the airtight chamber is slidably supported along the plane direction of the opening opening to the airtight chamber and is supported slidably to open and close the opening to close the airtight chamber. A door body which is airtight and has an engaging recess at the lower end in the sliding direction, and a sliding movement of the door body which is mounted by a mounting member near the lower edge of the opening and is engaged with the engaging recess of the door body. A guide body for guiding the guide roller, the guide body having a cylindrical guide roller having a fitting hole in the center axis, and an insertion hole eccentric from the center axis for inserting the mounting member. And a cylindrical shaft member that is inserted and fitted in the fitting hole to rotatably support the guide roller.

[0007]

The door device according to the present invention suspends and supports the door so that the opening of the airtight chamber can be opened and closed slidably along the plane direction of the opening. Further, a guide body that engages with an engaging recess provided at the lower end of the door body and guides the sliding movement of the door body is attached by a mounting member near the lower edge of the opening. Then, a cylindrical shaft member that fits in a fitting hole provided in the central axis of the cylindrical guide roller and rotatably supports the guide roller is inserted into an insertion hole eccentric from the central axis of the shaft member. The guide member is mounted by positioning the center axis of the guide roller at a predetermined position with the inserted mounting member, so that the shaft member can be mounted even if the mounting position of the mounting member deviates from the predetermined mounting position. Since the fitted guide roller comes to a predetermined position when it is rotated around, the mounting work of the mounting member is easy and the positioning is also easy. Further, since the guide body can be easily attached to the predetermined position, the door body guided by the guide body can perform the predetermined sliding movement to surely close the airtight chamber airtightly.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the door device of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 is a door body, and this door body 1
Is an opening formed from a floor surface 5 in a wall 4 which defines a greenhouse 2 as an airtight chamber, which is set to a predetermined temperature by a temperature control device (not shown), and which serves as an opening for taking in and out an object to be kept (not shown). It is attached so as to hermetically close the inlet 6.

A decorative frame 8 is attached to the periphery of the entrance 6 of the wall 4 of the greenhouse 2 with screws 9. Further, as shown in FIGS. 1 and 4, the decorative frame 8 is
A flexible airtight body 11 made of rubber or the like is attached along the periphery of the entrance 6 of the greenhouse 2 so as to be in close contact with the door 1 and make the greenhouse 2 airtight. Further, the decorative frame 8 attached to the upper edge of the entrance 6 has a rail body 12 whose longitudinal direction is attached along the sliding direction of the door body 1 and whose one end side projects from the decorative frame 8 and whose protruding one end side. It is attached with a slight upward inclination.

The rail body 12 is composed of a rail member 13 and a suspending member 14, and the rail member 13 is formed in an elongated rectangular tube shape having a U-shaped cross section with one side surface opened, and the lower end edge of the opening is further formed. A concave rail portion 16 is formed by being bent upward. On the other hand, the suspension member 14 includes a wheel 18 rotatably engaged with the rail portion 16, a shaft member 19 that rotatably supports the wheel 18 and one end side of which is bent downward, and a shaft member 19 of the shaft member 19. The lower end is formed of a support member 20 attached near both ends in the longitudinal direction.

The rail member 13 is attached such that one end side in the longitudinal direction projects from the decorative frame 8 and is inclined slightly upward. Further, the suspension member 14 is engaged with the rail portion 16 of the rail member 13 so that the wheels 18 can travel, and the support member 20 is positioned below the rail member 13 and is inclined with respect to the inclined rail member 13. The support member 20 is attached so that the direction is horizontal, and the support member 20 is attached so as to slide horizontally along the longitudinal direction of the rail member 13.

On the other hand, as shown in FIGS. 1 and 2, the door body 1 is made of, for example, a synthetic resin and is formed into a rectangular frame shape. It is formed as a thick plate having a thickness of 60 mm, which is a flat rectangle filled with a heat insulating material 23.

Further, as shown in FIG. 2, a connecting member 25, one end of which is rotatable in the thickness direction of the door body 1, is attached in the vicinity of both ends of the surface on the one end side in the longitudinal direction of the door body 1, One end of the connecting member 25 is attached near both ends of the support member 20 of the rail body 12 in the longitudinal direction, and the door body 1 is supported by the rail body 12 as a support member.
Sliding along the width of the door with 20
It is suspended and supported so as to open and close the entrance 6. A handle portion 26 is attached to the door body 1 at a substantially central position on one plane, on the side where the door body 1 closes the entrance 6 of the greenhouse 2.

Further, a surface on the other end side in the longitudinal direction of the door body 1,
That is, on the lower surface of the door body 1, as shown in FIG. 1 and FIG. 2, side ends 29 are formed by bending both ends in the longitudinal direction of a rectangular flat plate-like top plate 28 made of a steel plate or the like substantially vertically. The guide member 30 having a U-shaped cross section is attached such that the outer surface of the side plate portion 29 is continuous with the plane of the door body 1. Then, the guide member 30 is provided with engagement recesses 31 formed in a recessed groove shape on the inner peripheral surfaces of the top plate portion 28 and the side plate portion 29, and is attached so as to open downward.

Further, as shown in FIGS. 1 and 4, the guide member 30 is arranged such that the side of the side plate portion 29 on the side of the greenhouse 2 that closes the inlet 6 of the greenhouse 2 faces in the direction of closing. The tapered portion 33 is formed so that the thickness becomes thin. Furthermore, the door body 1 of the side plate portion 29 on the side of the greenhouse 2 is the entrance 6 of the greenhouse 2.
A wedge member 34 is attached on the side of the opening direction so that the thickness decreases in the closing direction.

On the other hand, reference numerals 36a, 36b and 36c are guide bodies, and these guide bodies 36a, 36b and 36c have a cylindrical shape having a fitting hole 37 in the central axis, for example, a diameter of 40 mm, as shown in FIGS. The guide roller 38, a cylindrical shaft member 40 having an insertion hole 39 eccentric from the central axis, and a cap portion 41 closing one end side of the fitting hole 37 of the guide roller 38.

In the guide roller 38, the fitting hole 37 formed in the central axis is composed of a small diameter portion 43 and a large diameter portion 44 larger in diameter than the small diameter portion 43. The small diameter portion 43 and the large diameter portion 44 Are made of synthetic resin, hard rubber, or the like so as to be coaxially through holes. The shaft member 40 is made of synthetic resin and has an outer diameter substantially the same as the diameter of the small diameter portion 43 of the fitting hole 37 of the guide roller 38,
The height is formed to be substantially the same as the height of the small diameter portion 43. In the guide bodies 36a, 36b, 36c, the shaft member 40 is inserted and fitted into the small-diameter portion 43 of the fitting hole 37 of the guide roller 38 to rotatably support the guide roller 38 and to insert the shaft member 40 therethrough. A bolt 46, which is a mounting member having a washer 45 attached to the hole 39, is inserted, and the bolt 6 is placed at a predetermined position on the floor surface 5 of the entrance 6 of the greenhouse 2.
It is installed in several places.

Furthermore, these three guide bodies 36a, 36b
, 36c is attached to a position facing the decorative frame 8 on the side where the door 1 closes the entrance 6 of the greenhouse 2 via the distance of the thickness of the airtight body 11. Has been. Further, the other guide body 36b is provided with an airtight body 11 on the decorative frame 8 on the side where the door body 1 opens the entrance 6 of the greenhouse 2.
And the thickness of the side plate portion 29 of the guide member 30 and the wedge member
The guides 36a and 34b are mounted so as to face each other with a distance slightly shorter than the sum of the thicknesses of the thickest portions 34, for example, about 7 mm from the center of the guide body 36a and on the side opposite to the inlet 6. And
Further, the other guide body 36c is spaced from the guide body 36b in the direction in which the door body 1 opens the entrance 6 of the greenhouse 2 with a distance of about 10 mm from the guide body 36b.
It is attached to the side opposite to the entrance 6 by about 10 mm from the center of b.

And, these guide bodies 36a, 36b, 36c
At least one engages with the engaging recess 31 of the guide member 30 of the door 1 that moves when the entrance 6 of the greenhouse 2 is opened and closed.

Next, the operation of the above embodiment will be described.

First, regarding the mounting operation of the guide bodies 36a, 36b, 36c, three holes are provided at predetermined positions on the floor surface 5 in the vicinity of the entrance 6 of the greenhouse 2 by using unillustrated drilling tools such as drills. Open 48. Next, the shaft member 40 is attached to the guide roller 38.
The washer 45 is fitted into the small diameter portion 43 of the fitting hole 37 of the shaft member 40, and the washer 45 is attached to the insertion hole 39 of the shaft member 40.
It is inserted so that it may be located in the large diameter part 44 of 38. Then, the bolts 46 inserted into the shaft member 40 that rotatably supports the guide roller 38 are screwed into the mounting holes 48, respectively. At this time, the guide roller 38 and the shaft member 40 are temporarily fixed so as to rotate with respect to the bolt 46.

Then, as described above, each guide body 36a
, 36b, 36c are eccentrically rotated so that the centers of the guide rollers 38, 36b, 36c are at predetermined positions, and the guide roller 38 is moved so that the distance from the inlet 6 becomes a predetermined distance. And
In this state, the bolt 46 is tightened to fix the shaft member 40 to the floor surface 5, and the cap portion 41 is engaged so as to close the large diameter portion 44 opening on the upper surface of the guide roller 38, so that the guide members 36a,
Mount 36b and 36c in place.

Next, regarding the operation of opening the door body 1, the handle body 26 attached to the door body 1 is grasped and the door body 1 is arranged along the longitudinal direction of the rail member 13 so that the rail body 12 is a decorative frame. 8
Move in a more protruding direction. At this time, the tapered portion 33 of the guide member 30 sandwiched between the airtight body 11 and the guide body 36a.
At the same time, the door body 1 moves to the side opposite to the entrance 6 of the greenhouse 2 due to its own weight about the connecting member 25. Further, when the door body 1 is moved along the longitudinal direction of the rail member 13, the guide body 36a is disengaged from the engagement recess 31 of the guide member 30, and the guide body 36c is engaged with the engagement recess 31. The guide member 30 is guided by the guide members 36b and 36c by the engagement of the guide member 36c, and the door member 1 is further connected.
Is moved to the side opposite to the inlet 6 of the greenhouse 2, and finally the guide body 36b is also disengaged from the engaging recess 31 to open the inlet 6 of the greenhouse 2.

Regarding the operation of closing the door body 1,
The handle body 26 is gripped and the door body 1 is moved while the guide body 30 is engaged with the guide body 36b. At this time, the guide member 30 is guided by the guide member 36b, and the door body 1 moves to the entrance 6 side of the greenhouse 2 with the connecting member 25 as an axis. Further, the door body 1 is moved along the longitudinal direction of the rail member 13, the guide body 36c is removed from the guide member 30, and the guide body 36a is tapered.
The tapered portion 33 is sandwiched and fixed between the airtight body 11 and the guide body 36a by engaging with and abutting the 33. At this time, the guide body 36b
The guide member 30 contacts the wedge member 34, and the guide member 30
Guided to the inlet 6 side at 36b, the door body 1 moves to the inlet 6 side of the greenhouse 2 with the connecting member 25 as an axis, and is brought into close contact with the airtight body 11 attached along the periphery of the inlet 6. The greenhouse 2 is airtightly closed.

Next, the operation of the above embodiment will be described.

A rail body 12 is attached to a decorative frame 8 attached to the upper edge of the entrance 6 of the greenhouse 2, and the door 6 is slidable along the plane direction of the entrance 6 so that the entrance 6 can be opened and closed. The body 1 is suspended and supported. Further, the centers of the three guide bodies 36a, 36b, 36c that engage with the engaging recesses 31 of the guide member 30 attached to the lower end of the door body 1 and guide the sliding movement of the door body 1 are slightly shifted. At a predetermined position on the floor surface 5 of the entrance 6. At this time, the shaft member 4 of the guide body 36a, 36b, 36c is inserted into the mounting hole 48 provided at a predetermined position on the floor surface 5.
The bolt 46 inserted through the insertion hole 39 of 0 is screwed, the shaft member 40 is eccentrically rotated, the guide roller 38 into which the shaft member 39 is inserted and fitted is moved to a predetermined position, and the guide members 36a and 36b are inserted. ， 36
Install c in place.

Therefore, even if the position of the mounting hole 48 deviates from the predetermined position, the center of the guide roller 38 is moved to the predetermined position by rotating the shaft member eccentrically, and the guide member 36a,
Since 36b and 36c can be attached at the predetermined positions, it is not necessary to use the advanced technology to form the mounting holes 48 at the predetermined positions as in the conventional case, and the mounting holes can be easily formed. You can improve the property. Furthermore, the guide body 36a
, 36b, 36c can be easily attached to predetermined positions, and the door body 1 guided by the guide bodies 36a, 36b, 36c moves in a predetermined manner. The door body 1 is surely brought into close contact with the airtight body 11 provided, and the greenhouse 2 can be surely closed airtightly.

In the above embodiment, the guide body 36a
, 36b and 36c are attached at three positions, but a plurality of them can be attached at any other position than the above.

Although the guide member 30 is attached to the lower end of the door body 1 in the description, the door body 1 and the guide member 30 may be integrally formed, and the engaging recess 31 may be formed at the lower end of the door body 1. it can.

The guide members 36a, 36b, 36c have, for example, a shaft member 40 formed into a truncated cone shape in section, and a guide roller 38
The small diameter portion 43 of the fitting hole 37 may be formed in a truncated cone shape in section, and the guide roller 38 may be formed on the large diameter portion 44 side so as not to come off from the shaft member 40.

[0032]

According to the door device of the present invention, the door body is suspended and supported so that the opening of the airtight chamber can be opened and closed slidably along the plane direction of the opening. Further, a guide body that engages with an engaging recess provided at the lower end of the door body and guides the sliding movement of the door body is attached by a mounting member near the lower edge of the opening. Then, a cylindrical shaft member that fits in a fitting hole provided in the central axis of the cylindrical guide roller and rotatably supports the guide roller is inserted into an insertion hole eccentric from the central axis of the shaft member. The guide member is mounted by positioning the center axis of the guide roller at a predetermined position with the inserted mounting member, so that the shaft member can be mounted even if the mounting position of the mounting member deviates from the predetermined mounting position. Since the fitted guide roller comes to a predetermined position when it is rotated around, the mounting work of the mounting member is easy, and the positioning is also easy. Further, since the guide body can be easily attached to the predetermined position, the door body guided by the guide body can perform the predetermined sliding movement to surely close the airtight chamber airtightly.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view illustrating a state where a door body closes a greenhouse according to an embodiment of a door device of the present invention.

FIG. 2 is a front view showing a state in which the above greenhouse is closed.

FIG. 3 is an exploded sectional view of the same guide body.

FIG. 4 is a cross-sectional view of the vicinity of the guide member for explaining a state in which the door body closes the greenhouse.

[Explanation of symbols]

 1 Door body 2 Greenhouse as an airtight chamber 6 Entrance 31 which is an opening 31 Engagement recesses 36a, 36b, 36c Guide body 37 Fitting hole 38 Guide roller 39 Insertion hole 40 Shaft member 46 Bolt as a mounting member

Claims (1)

[Scope of utility model registration request] 1. An airtight chamber is slidably supported along a plane direction of an opening of the opening, and the opening is opened and closed to make the airtight chamber airtight when closed, and a lower end is engaged in the sliding direction. A door body having a concave portion; and a guide body that is attached to a vicinity of a lower end edge of the opening portion by a mounting member and is engaged with an engaging concave portion of the door body to guide sliding movement of the door body, The body has a cylindrical guide roller having a fitting hole in the center axis, and an insertion hole eccentric from the center axis for inserting the mounting member, and the guide roller is inserted and fitted in the fitting hole of the guide roller. And a cylindrical shaft member that rotatably supports the door.