JP2764698B2 - Sliding door structure for greenhouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door structure provided at an entrance of a greenhouse (plastic house) as shown in FIG. 6, and more particularly to a sliding door suspended only by an upper rail. The present invention relates to a sliding door structure in which double wheels are applied to the traveling of a sliding door, and a sheet stopper for directly stretching a greenhouse membrane (sheet) can be attached to an upper side rail.

[0002]

2. Description of the Related Art Conventionally, a door opening s of a greenhouse A is used.
As a sliding door c (see FIG. 6) to be attached to, for example, the one shown in FIG. 7 is known. This sliding door c is provided with a single wheel d, which is a single wheel, on the upper part, and the single wheel d is mounted on an upper side rail e having a U-shaped cross section, and is slidably moved to open and close. Configuration. As means for fixing the upper side rail e to the aggregate (pipe g), a U-shaped holding bracket k
Is fitted to the upper side rail e, and is firmly fixed to the support pipe g with the U bolt m and the thumbscrew i.

In order to stretch a soft sheet h as a film material of the greenhouse A, first, a sheet stopper j is fixed to the outside of the support pipe g (left side in FIG. 7), and the sheet stopper j is fixed.
Is performed by tightening a soft sheet h with a stop line f.

[0004]

The sliding door c shown in FIG. 7 is unstable because it runs on the upper rail e with a single wheel d. That is, the upper rail e on which the single wheel d is mounted has a U-shape having an opening in the lateral direction (inward direction), and the rail e is released from the opening when it is subjected to strong wind or forced to run. There is a possibility that. In particular, the bolts a and the nuts b fixing the single wheel d may be loosened due to strong wind or the like. Also, the operation of fixing the upper side rail e with the holding bracket k must be well fitted to each other, which is troublesome.

Further, a soft sheet h or the like for a greenhouse is stretched at the edge of the entrance opening s for installing the sliding door c.
Must be attached to the outside of the support pipe g. Then, a gap is generated between the soft sheet h and the sliding door c, and the wind enters from the gap, so that the airtightness of the greenhouse cannot be maintained, and these points are to be solved.

Accordingly, it is an object of the present invention to stabilize the sliding movement of a sliding door provided at an entrance opening of a greenhouse or the like, and to distinguish between a soft sheet and a hard sheet as a film material for a greenhouse. It is an object of the present invention to provide a sliding door structure in which the seat can be simply and easily attached to a door structure while maintaining airtightness.

[0007]

As a means for solving the above-mentioned problems of the prior art, a sliding door structure for a greenhouse according to the present invention according to the first aspect of the present invention comprises an upper side rail attached to an entrance opening of a greenhouse, In a sliding door structure for a greenhouse, comprising a sliding door suspended and slid on the upper rail, the upper rail 3 has a lip-shaped grooved steel shape having a cross-sectional basic shape having an opening 9 facing downward. The upper surface 7a of the left and right lips 7, 7 bent inward at a substantially right angle is used as the running surface of the door stroller. A groove 6 having a gap into which the tap screw 8 can be screwed is formed. Further, a drooping surface portion 11 bent substantially vertically downward on an extension of the side plate 3a is formed.
The double wheels 12 attached to the upper rail 3 by screwing into the groove portions 6 and projecting vertically upward from the upper part of the sliding door 4 are attached to the upper surfaces 7a of the left and right lips 7, 7 in the upper rail 3. It is characterized by being mounted so that it can run.

[0008] According to a second aspect of the invention, the right and left lip 7, 7 each of the inner edge 7b of the upper side rail in a sliding door structure according to claim 1, that was slightly upwardly bent 7b Features. According to a third aspect of the present invention , there is provided an upper rail in the sliding door structure according to the first aspect.
The seal member 13 is attached to the inside of the hanging surface portion 11. According to a fourth aspect of the present invention , the upper rail 3 in the sliding door structure according to the first aspect is provided with a lip 15 on one side of a holding tool 14 having a lip-shaped channel steel shape having a cross-section opening downward. Is inserted from above into the groove 6 of the upper side rail 3 to hold the holder 14
Is fixed to a support pipe 16 such as a greenhouse with bolts such as U bolts 17.

[0009]

The upper rail 3 is in the form of a lip-shaped grooved steel having an opening 9 downward, and the upper surfaces 7a, 7a of the left and right lips 7, 7 bent inward at substantially right angles are used as the running surface of the door stroller. Therefore, the double wheels 12 placed on the lips 7, 7 can travel in a well-balanced manner (FIG. 1). At this time, the inner edge 7b of the lip 7 is slightly bent upward, so that the double wheel 12 does not rattle during the sliding movement, the derailment is prevented, and the running stability is obtained.

The edge of the lip 7 on one side of the upper rail 3 is
The self-tapping screw 10 is folded down to the lower side of the lip, and the turning piece 10 forms a groove 6 having a gap into which the self-tapping screw 8 can be screwed. Stopper for sheet 5
(Fig. 1) or the hard sheet stopper 5 '(Fig. 5) can be easily fixed. In addition, since the tip of the folded piece 10 is formed on the hanging surface 11 which is bent substantially vertically downward on the extension of the side plate 3a, the flat lower surface of the stopper 5 is connected to the flat side plate 3a and the hanging surface. It can be pressed and fixed to the surface portion 11 exactly. Therefore, the soft sheet 1
9 or the hard sheet 20 is stretched directly on the outer side surface of the upper side rail 3, and furthermore, a sealing material 13 which is in contact with the outer side surface of the door 4 is attached inside the hanging surface portion 11, so that the door 4
There is no gap between them, and the airtightness can be maintained without air leaking from the greenhouse.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 1 shows a main part of a sliding door structure used in a greenhouse in which a frame is assembled with a support pipe as shown in FIG. The sliding door structure includes an upper rail 3 attached to an upper side of an entrance opening of a greenhouse, a sheet stopper 5 directly attached to the upper rail 3, and a sliding door suspended from the upper rail 3 and slidably moved. 4.

FIG. 2 shows a specific configuration of the upper rail 3. The upper side rail 3 is formed into a lip-shaped grooved steel shape having a downward opening 9 by a roll forming process of a steel sheet with the basic shape of the cross-sectional shape facing downward (FIG. 2A). The cross-sectional size is 54 mm in width and 39 mm in height. In FIG. 2B, the length of the left lip 7 is 23.5 m.
m, the length of the right lip 7 is 15.5 mm, and the length of the opening 9 between both lips 7, 7 is 15 mm. Upper surfaces 7a, 7a of the left and right lips 7, 7, which are bent inward at a substantially right angle, are door rollers (double wheels 12 of door 4 described later).
It is a running surface. The inner edges 7b, 7b of the left and right lips 7, 7 are slightly upwardly bent in order to stabilize the running of the door roller (to prevent left and right wobbling and meandering), thereby limiting the running surface width of the wheels. Have been. The edge of the outer lip 7 is folded back to the lower side of the lip 7 and its folded piece 10
Is formed in a groove 6 having a gap (1.6 mm) into which a self-tapping screw 8 can be screwed between the lip 7 and the lip 7. Further, the tip of the folded piece 10 is bent substantially vertically downward on an extension of the side plate 3a of the upper side rail 3 so as to be a blind and airtight hanging surface 11 (having a height of 13.4 m).
m). The inside of the hanging surface portion 11 is filled with a sealing material 13 such as synthetic rubber to further improve airtightness (see FIG. 1). Therefore, the soft sheet stopper 5 having a narrow opening is firmly attached directly to the outer surface of the upper rail 3 by the self-tapping screw 8 screwed into the groove 6. A soft sheet 19, which is a film material of a greenhouse, is fixed to the sheet stopper 5 by an elastic corrugated stopper line 21 (FIG. 1).

FIG. 3 shows the structure of the sliding door 4. A double wheel 12 is attached to the upper part of the door 4 so as to protrude vertically upward. Sliding door 4
In the upper side, two square holes 18 are formed. A screw shaft 12a, which is chamfered downward from the axle portion of the double wheel 12 in the shape of a square shaft, protrudes, the screw shaft 12a is inserted into the square hole 18, and a nut 23 is screwed and tightened from below to mount the double wheel 12. Done. Therefore, when the door 4 is attached to the upper rail 3, first, the double wheel 12 is placed on the upper surfaces 7 a, 7 a of the left and right lips 7, 7 in the upper rail 3, guided to a desired position, and Can be easily carried out by carrying the door main body and tightening the screw shaft 12a inserted through the square hole 18 with the nut 23.

FIG. 4 shows a state in which the sliding door structure (upper rail 3) having the above structure is attached to a support pipe 16 using a holder 14. The holder 14 has a width substantially equal to the outer dimension of the upper rail 3 and a height equal to the upper rail 3.
Is formed somewhat higher than the height of the lip, and the cross-sectional shape is a lip-shaped channel steel having an opening facing downward. The lip 15 on one side of the holder 14 is inserted into the groove 6 of the upper rail 3, and the lip 15 on the other side holds the upper rail 3 from above with the lip 7 inside the upper rail 3. Therefore, the upper side rail 3 is firmly held. A U-bolt 17 is inserted into the bolt hole 14a on the upper part of the holder 14.
(However, the type of bolt is not limited.) Is inserted from the left side to the right side in FIG. 4, and is firmly fixed to the inner surface of the support pipe 16 of the greenhouse by tightening with the thumb screw 22.

[0015]

Second Embodiment FIG. 5 shows a case where a hard sheet 20 is stretched using the sliding door structure of the first embodiment. The configuration of the upper side rail 3 and the sliding door 4 is the first
This is exactly the same as the embodiment. As a sheet stopper, a stopper 5 'for a hard sheet is used instead of the stopper 5 for a soft sheet. Therefore, the hard sheet 2 is placed on the side plate 3a of the upper rail 3 and the hanging surface 11 which form a flat surface.
0, the stopper 5 'for the rigid sheet is pressed from above by the upper and lower legs 50, 50, and the self-tapping screw 8 is also screwed into the groove 6 from the head of the stopper 5'. 20 is also easily stretched.

[0016]

According to the sliding door structure for a greenhouse according to the present invention, the double wheels 12 placed on the lips 7, 7 of the upper rail 3 travel in a well-balanced manner, so that the sliding door travels. Sliding door 4
The value of use is increased. In addition, the sheet stopper 5 or 5 'can be fixed directly to the upper side rail 3, and the desired seat 19 or 20 can be stretched. Since there is almost no gap between the stretched sheet 19 and the like and the sliding door 4, the airtightness of the greenhouse is maintained. Furthermore, the double wheel 12 is not visible from the outside due to the blind surface 11 for the blindfold, and the aesthetic appearance is improved.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a sliding door structure.

FIGS. 2A and 2B are an overall view and an enlarged sectional view showing an upper side rail.

FIG. 3 is a partially exploded perspective view showing a sliding door.

FIG. 4 is a cross-sectional view showing how to attach a sliding door structure to a support pipe.

FIG. 5 is a cross-sectional view showing a procedure for stretching a hard sheet.

FIG. 6 is an overall view showing a conventional sliding door.

FIG. 7 is a side view of a conventional example.

[Explanation of symbols]

 Reference Signs List 3 Upper rail 4 Sliding door 5 Seat stopper 6 Groove 7 Lip 7a Upper surface 7b Inner edge 8 Self-tapping screw 9 Opening 10 Side plate 11 Hanging lower surface 12 Double wheel 13 Sealing material 14 Holder 15 Lip 16 Support pipe 17 U bolt

Claims (4)

(57) [Claims] 1. A sliding door structure comprising an upper rail attached to an entrance opening of a greenhouse and a sliding door suspended from the upper rail and slidably moved, wherein the upper rail has a basic cross-sectional shape. The upper surface of the left and right lips bent inward at a substantially right angle is the running surface of the door stroller, and the upper edge of the left and right lips bent inward at a substantially right angle is folded back to the lower side of the lip. A groove is formed between the lip and the self-tapping screw so that a self-tapping screw can be screwed into the lip. Double wheels mounted on the upper rail by screwing into the groove and protruding vertically upward from the upper part of the sliding door have left and right lids in the upper rail. A sliding door structure for a greenhouse, wherein the sliding door structure is mounted so as to be able to run on an upper surface of a door. 2. The sliding door structure for a greenhouse according to claim 1, wherein the left and right lips of the upper rail have respective inner edges slightly bent upward. Droop surface of wherein upper rail, characterized in that a seal member is attached on the inside, to claim 1
The sliding door structure for the greenhouse described . (4) Upper rail has downward cross section opening
Lip on one side of a lip-shaped channel steel holder
From the top with the plug inserted into the groove of the upper rail.
And the fixture is bolted to the greenhouse support pipe
Characterized by beingClaim 1greenhouse
Sliding door structure.