JP2012228220A - Door structure for entrance of plastic greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use, as an opening, a wider range out of the whole area of a preparation face, e.g., an end face, for preparing the opening for an entrance of a plastic greenhouse.SOLUTION: The door structure for the entrance of the plastic greenhouse includes: the square opening 2 constituting the entrance of the plastic greenhouse 1; an upper rail part 3 disposed inside along the upper side of the square opening 2, and a lower rail part 4 disposed inside along the lower side of the square opening 2; a pair of folding doors 5, 5 composed of revolving doors 5a and moving doors 5b disposed between the upper and lower rail parts; upper connecting means 6 for connecting the upper sides 5a1 of the respective revolving doors 5a, 5a to the upper rail part 3, and lower connecting means 7 for connecting the lower sides 5a2 of the revolving doors 5a, 5a to the lower rail part 4; suspension means 8 for suspending the upper sides 5b1 of the respective moving doors 5b, 5b movably and rotatably from the upper rail part 3; and sliding members 9 for engaging the lower sides 5b2 of the moving doors 5b, 5b rotatably and slidably with the lower rail part 4.

Description

  The present invention relates to a door structure for an entrance / exit of a greenhouse used for cultivation of agricultural products and the like, and in particular, an entrance / exit door structure for a greenhouse capable of forming an opening wider than the size of the wife's face. It is about.

  The door structure for an entrance / exit of this type of greenhouse is usually made as a sliding door structure or a double door structure.

  Patent document 1 is an example of the door structure of the said sliding door structure, and is related with the lower rail traveling type sliding door apparatus for greenhouses. This is a sliding door device that opens and closes the entrance / exit provided on the face of the greenhouse, and a lower rail is installed along the lower edge of the entrance / exit, and a lower part of the installed sliding door is above the lower rail. A door wheel that is mounted and rolled is attached, a guide rail that restrains and guides the upper part of the sliding door is installed along the upper edge of the doorway, and a slider that hits the guide rail with low friction is attached to the upper part of the sliding door, The lower rail is characterized in that a necessary length portion is configured to be detachable around the opening width of the entrance / exit.

  According to this sliding door device of Patent Document 1, since it is a lower rail traveling type, the load burden of the sliding door due to the frame structure is reduced, and it is possible to eliminate the squeaking noise and other noise problems that occur during the opening and closing operation, Since it is configured so that a portion within the range of the entrance width can be attached and detached, there are advantages such as being convenient when a tractor or the like passes through this opening, but in such a sliding door device, a greenhouse The opening is limited to a certain range of the wife surface, and a sufficient opening area cannot be secured.

  That is, in order to open the opening, the sliding door needs to be slid to the side of the opening, and a retreat space at least as wide as the width of the sliding door is required on the side of the opening. It is. Therefore, when two sliding doors are arranged on the same rail, a retracting space of one sliding door width is required on each side of the opening, and the sliding door 4 is provided on the wife's face of the greenhouse. Even if there is a width corresponding to the number of sheets, only an opening having a width corresponding to two sheets, that is, an opening having a width that is half the width of the wife surface can be formed.

  Patent Document 2 is a door structure such as a greenhouse, and relates to a door structure that can be applied to either a sliding door or a double door. This is a door structure used for a simple structure such as a greenhouse, where the vertical frame material and the horizontal frame material provided with a sheet fixing groove are arranged vertically with each sheet fixing groove facing a common surface. Combined horizontally, the joints are tightened to form a rectangular door outer frame, and a vertical beam and a horizontal beam, which are also provided with a sheet fixing groove in the surface of the outer frame, are connected to the outer periphery of each sheet fixing groove. Arranged in the same direction as the frame and crossed into a cross shape and assembled, tightening the joints to each other and also tightening the joints with the outer peripheral frame, and using the above-mentioned sheet fixing grooves, the frame of the outer peripheral frame The cover sheet that shields the surface is configured to be fastened.

  The door structure of Patent Document 2 is supposed to be applicable to both sliding doors and double doors in the opening of a greenhouse or the like, and when used as such, the door structure is placed inside the outer peripheral frame. Since it has a cross-shaped vertical beam and horizontal beam and is configured in a square shape, even if it is a pin structure that is tightened with bolts, it is structurally a restraint link structure that strongly resists deformation due to external force. There is almost no concern. And that point seems to be certain, but when this door structure is used as a sliding door as well as the door structure of Patent Document 1, there is exactly the same problem as in Patent Document 1. In addition, a retreat space having the same width as the width of the door structure is required on the side of the opening where the door structure is arranged. Therefore, there is a problem that the opening cannot be configured sufficiently wide.

  When used as a double door, there is no need for a retracting space for the door structure on the side, but increasing its width beyond the width of a normal door can cause problems with the strength of the hinge and the frame structure. There is a problem in opening and closing, and it cannot be easily done. Therefore, it must be said that the opening cannot be made sufficiently wide.

  Patent document 3 is a semi-automatic open door device of a simple greenhouse. This is a semi-automatic open door device that opens the sliding door at the entrance and exit of a simple greenhouse. The upper end of the drive pipe is rotatably connected to the greenhouse components above the sliding door and suspended, and the lower end of the drive pipe guides it. A roller is attached, the guide roller is movably combined along a guide rail member attached to the vertical member of the sliding door, one end of the drive spring is connected to a position closer to the lower side of the drive pipe, The other end is fixed to the greenhouse constituent material at an angle that allows the driving spring to move the sliding door to the fully open position, and a stopper mechanism for stopping the sliding door at the fully closed position, and the stopper mechanism is opened. This is a semi-automatic open door device for a simple greenhouse constructed by installing an opening control means.

  According to the semi-automatic open door device of a simple greenhouse in Patent Document 3, the sliding door is opened to a fully opened state by a simple operation of the opening control means, for example, a simple operation such as a stepping pedal mechanism or a push lever mechanism or a lever operation. It is certain that there is an advantage that can be done, but there is no difference from the sliding door of Patent Document 1 in terms of the sliding door. Again, the opening cannot be made sufficiently wide in the installation area.

Japanese Patent Laid-Open No. 11-243790 Utility Model Registration No. 3107721 JP 2010-19041 A

  The present invention solves the problems of the prior art as described above, and is a structural area of the entrance / exit of the greenhouse, for example, a greenhouse that can be used as an entrance / exit with a large proportion of the opening on the wife surface. It is an object of the present invention to provide an entrance / exit door structure.

1 of the present invention is a rectangular opening constituting the entrance of a greenhouse,
An upper rail portion disposed on the indoor side along the upper side of the rectangular opening and a lower rail portion disposed on the indoor side along the lower side, each end of the square opening extending beyond both sides of the rectangular opening. Extended upper and lower rails; and
A folding door comprising a revolving door disposed between the upper rail portion and the lower rail portion, and a movable door foldably coupled thereto by a hinge;
Upper coupling means arranged at a position in the middle of the width of the upper side of the revolving door to couple the revolving door of the folding door to the upper rail portion and the lower rail portion so as to be rotatable in the middle of the lateral width direction; Lower coupling means disposed at a position corresponding to the upper coupling means on the lower side of the revolving door, the upper coupling means coupled to a position adjacent to one side of the rectangular opening of the upper rail portion; Lower coupling means coupled at a position corresponding to the upper coupling means of the lower rail portion;
The upper side of the movable door of the folding door is suspended from the upper rail part so as to be rotatable and movable. The upper coupling means and the movable door and the middle part of the movable door are symmetrical about the virtual vertical line of the intermediate part. In the closed state and in a closed state, the suspension means disposed at a position close to the other side of the rectangular opening, and the lower side of the moving door of the folding door are rotatable and slidable to the lower rail portion. A slide member that is freely engaged and arranged in a positional relationship corresponding to the vertical direction of the suspension means;
It is a door structure for a greenhouse constructed of

2 of the present invention is a door structure for an entrance of a greenhouse according to 1 of the present invention,
The upper rail part is composed of a lip groove member (C-shaped member) with the opening facing downward, and the lower rail part is composed of a lip groove member (C-shaped member) with the opening facing upward,
The upper coupling means includes a coupling shaft that is rotatably coupled to the upper side of the revolving door, and a groove member that is arranged in a downward opening state so that both side ends thereof are in contact with the inner surface of the lip portion of the upper rail portion. The upper end of the coupling shaft is screwed in the middle of the upper portion of the coupling shaft, and the upper end of the coupling shaft is pressed against the upper inner surface of the upper rail portion so that the both ends are connected to the upper rail portion. And a groove shape material in pressure contact with the inner surface of the lip part,
Further, the lower coupling means includes a coupling shaft that is rotatably coupled to the lower side of the revolving door, and a groove member that is arranged in an upwardly opened state so that both side ends thereof are in contact with the inner surface of the lip portion of the lower rail portion The lower end of the coupling shaft is screwed into the middle portion of the lower portion of the coupling shaft and the lower end of the coupling shaft is pressed against the lower inner surface of the lower rail portion so that the both ends are connected to the lower rail. And a groove-shaped member that is brought into pressure contact with the inner surface of the lip portion.

3 of the present invention is a door structure for an entrance / exit of a greenhouse of 2 of the present invention,
The suspension means is a shaft member rotatably coupled to the upper side of the movable door, an axle attached in a direction orthogonal to the shaft member, and a wheel member rotatably disposed at both ends of the axle, A wheel member that is arranged to freely roll on the inner surface of the lip portion of the upper rail portion, and
The slide member is a shaft member that is rotatably coupled to the lower side of the movable door, and a sliding member that is coupled to a lower portion of the shaft member, and is slidable between lip portions on both sides of the lower rail portion. And a sliding member arranged.

4 of the present invention is a rectangular opening constituting the entrance of the greenhouse,
An upper rail portion disposed on the indoor side along the upper side of the rectangular opening and a lower rail portion disposed on the indoor side along the lower side, each end of the square opening extending beyond both sides of the rectangular opening. Extended upper and lower rails; and
A pair of folding doors comprising a revolving door disposed between the upper rail portion and the lower rail portion and a movable door foldably coupled to the same by a hinge, and a pair of folding doors configured symmetrically with each other; ,
The revolving doors of the pair of folding doors are arranged at intermediate positions in the width direction of the upper sides of the revolving doors so that the revolving doors can be coupled to the upper rail portion and the lower rail portion so as to be freely rotatable in the lateral width direction. Upper coupling means and lower coupling means arranged at positions corresponding to the upper coupling means on the lower side of the revolving door, each in an opening portion adjacent to the corresponding side of the rectangular opening of the upper rail portion Upper coupling means coupled to a position and lower coupling means coupled to a position corresponding to the upper and lower coupling means of the lower rail portion;
The upper sides of the movable doors of the pair of folding doors are suspended in a freely movable and rotatable manner on the upper rail portion, and the upper coupling means of the corresponding rotary doors and the intermediate portions of the movable doors and the corresponding rotary doors. Hanging means arranged in a symmetrical relationship with the virtual vertical line as the axis of symmetry, and the lower sides of the movable doors of the pair of folding doors are engaged with the lower rail portion so as to be movable and rotatable, respectively. A slide member arranged in a positional relationship corresponding to each of the corresponding hanging means;
It is a door structure for a greenhouse constructed of

  According to the door structure for an entrance and exit of a greenhouse according to the present invention, for example, when this is applied to a wife's face or the like of a greenhouse, the most part of the door and the opening are left with extremely narrow walls. You can configure a very wide doorway. Further, a part of the rotary door of the folding door and a part of the movable door overlap with both side walls of the square opening constituting the doorway, so that the closed state is ensured when the doorway is closed.

  According to the door structure for an entrance / exit of a greenhouse according to the present invention, since the door member employs a folding door composed of a revolving door and a movable door coupled to the revolving door, when the entrance is opened, the revolving door side is Rotate and turn the revolving door in a direction perpendicular to the wife surface at a position close to the corresponding side of the doorway, and simultaneously move the revolving door to the revolving door side while reversing and parallel to the revolving door State. Thus, the fully opened state is obtained.

  Thus, when the doorway is opened, since the door member is a folding door, there is no need for a retreat space for retracting the door like a sliding door to the side of the square opening constituting the doorway. Therefore, in the sliding door, a portion that becomes such a retreat space can be included in the opening for the entrance and exit, and the entrance and exit can be made sufficiently large. In the case of a double door, the width of the single door cannot be made extremely large from the viewpoint of operability or its support by the frame structure. According to the door structure, since the folding door is adopted, it is possible to configure the door to be about twice as wide as that, so that a wide doorway can be formed.

  Further, according to the door structure for an entrance / exit of a greenhouse according to the present invention, when the entrance / exit is fully closed, a part of the revolving door and a part of the movable door are formed in the square at both sides of the rectangular opening. Since it overlaps with the wall surface of both sides of an opening part, the sealing property in this entrance / exit becomes favorable.

  According to the door structure for the entrance / exit of the greenhouse 2 according to the present invention, the upper rail portion and the lower rail portion, and the upper coupling means and the lower coupling means can be configured easily and reliably.

  According to the door structure for the entrance / exit of the greenhouse 3 according to the present invention, the suspension member and the slide member can be configured easily and reliably.

  According to the door structure for an entrance / exit of a greenhouse according to the fourth aspect of the present invention, for the same reason as the door structure for an entrance / exit of the greenhouse according to the first aspect of the present invention, a wider opening is formed on the surface of the plastic house to which this is applied. Can do. In addition, since both of the revolving doors of the pair of folding doors overlap with both side walls of the square opening constituting the doorway, the sealing performance becomes more reliable when the doorway is closed.

Front explanatory drawing of the door structure of the entrance / exit of the greenhouse of Example 1. FIG. (a) is plane explanatory drawing of the closed state of the door structure of the entrance / exit of the greenhouse of Example 1, (b) is plane explanatory drawing in the middle of opening, (c) is plane explanatory drawing of a full open state. (a) is a partially cutaway cross-sectional explanatory view showing a revolving door and its upper and lower coupling means in the door structure of the greenhouse of Example 1, and (b) is a door of the entrance of the greenhouse of Example 1. FIG. 4 is a partially cutaway cross-sectional explanatory view showing a movable door, its hanging means and a slide member in the structure. Front explanatory drawing of the door structure of the entrance / exit of the greenhouse of Example 2. FIG. Plane explanatory drawing of the fully-closed state of the door structure of the entrance / exit of the greenhouse of Example 2, and a fully-open state.

  EMBODIMENT OF THE INVENTION The form for implementing the door structure of the entrance / exit of the greenhouse of this invention is demonstrated in detail based on an Example.

<Example 1>
As shown in FIGS. 1 to 3, the door structure for the entrance and exit of the greenhouse according to the first embodiment basically includes a rectangular opening 2 constituting the entrance and exit of the greenhouse 1 and an upper side of the rectangular opening 2. The upper rail part 3 arranged along the inner side along the lower rail part 4 along the lower side and the revolving door 5a and the movable door arranged between the upper rail part 3 and the lower rail part 4 A pair of folding doors 5 and 5 consisting of 5b, an upper coupling means 6 for coupling the upper side 5a1 of each of the revolving doors 5a and 5a to the upper rail part 3, and a lower side 5a2 of the revolving doors 5a and 5a as the lower rail part A lower coupling means 7 coupled to 4, a suspension means 8 for suspending the upper side 5 b 1 of each movable door 5 b, 5 b to be movable and rotatable on the upper rail portion 3, and a lower side 5 b 2 of the movable door 5 b, 5 b Lower race Rotatably Part 4 and which is constituted by a slide member 9 which slidably engage.

  The greenhouse 1 to which the first embodiment is applied is for agriculture or horticulture, and is not limited to a specific structure.

  As long as the rectangular opening 2 which comprises the said entrance / exit is an upright plane, it can be comprised even if it is any site | part of the side surface of the greenhouse 1, or a wife surface. In many cases, the construction on the wife surface is convenient in terms of construction in terms of practically meaning that the entire surface of the part is an upright plane. In this Example 1, as shown in FIG. 1, it applies to the entrance / exit of the end face of the greenhouse 1. In the first embodiment, both sides of the rectangular opening 2 are constituted by the pillars 1a and 1a, and the upper and lower sides thereof are constituted by the same long metal member. It is located on the front side of the part 3 and the lower rail part 4 and overlaps with each other, so it is omitted from the viewpoint of easy understanding.

  In the first embodiment, the upper rail portion 3 and the lower rail portion 4 are both lip groove members, that is, as shown in FIGS. 3 (a) and 3 (b). A long metal member having a cross-sectional shape is adopted, and the upper rail portion 3 is configured with the opening between the lips facing downward, and the lower rail portion 4 is formed between the lips. It is configured with the opening facing upward. Further, both ends of the upper rail portion 3 and the lower rail portion 4 are extended beyond the sides of the rectangular opening 2, and in this embodiment 1, as shown in FIG. 1 to the side. Furthermore, as described above, the upper rail portion 3 and the lower rail portion 4 are both arranged on the inner side (inside the room) immediately adjacent to the rectangular opening 2 constituting the entrance / exit.

  In addition, regarding the member which comprises this upper rail part 3 and this lower rail part 4, it is not limited to the said lip groove shape material, A long member of various structures can be employ | adopted freely. Any material may be used as long as it has sufficient strength to exhibit its respective functions. Usually, an aluminum alloy or the like is advantageous because it can secure the required strength and is lightweight.

  As shown in FIG. 1, the pair of folding doors 5, 5 are symmetric with respect to the temporary vertical line that is the center in the width direction of the rectangular opening 2 between the upper rail portion 3 and the lower rail portion 4. The axes are configured to be symmetrical to each other. Further, as shown in the figure, with the pair of folding doors 5, 5, the rectangular opening 2 is closed in a fully closed state, and the outer portions of the respective rotary doors 5 a, 5 a are connected to the rectangular opening 2. The dimensions of the pair of folding doors 5 and 5 are set and arranged so as to be superimposed on the back of the side wall surface.

  As shown in FIGS. 1 and 2 (a) to 2 (c), each of the folding doors 5 includes a rectangular movable door 5b as well as a rectangular revolving door 5a. It is composed of a metal frame body along the side and a metal crosspiece arranged in the middle in the vertical direction, and a vinyl sheet is applied to this. The shape and dimensions of the rotary door 5a and the movable door 5b are exactly the same. As shown in FIGS. 1 and 2 (a) to 2 (c), each folding door 5, 5 is arranged on the left side of the entrance / exit of the greenhouse 1, with a revolving door 5a on the left side and a moving door 5b on the right side. 2 are arranged on the right side of the entrance / exit, and the movable door 5b is arranged on the left side, the rotating door 5a is arranged on the right side, and both folding doors 5 and 5 are arranged as shown in FIG. As shown in FIGS. 2 (b) and 2 (c), the sides of the revolving door 5a and the movable door 5b arranged in a straight line and in contact with each other are hinged toward the outside of the greenhouse 1 as shown in FIGS. Connect so that it can be bent.

  In the fully closed state of the folding doors 5 and 5, the upper coupling means 6 corresponds to a portion of the upper side 5 a 1 of the rotary door 5 a corresponding to the inside adjacent to the side of the rectangular opening 2 and the upper rail portion 3. Configured between the parts. The lower coupling means 7 is configured between the lower side 5a2 of the rotary door 5a and the lower rail portion 4 so as to correspond to the upper coupling means 6 in the vertical direction.

  As shown in FIG. 3A, the upper coupling means 6 includes a coupling shaft 6a that is rotatably coupled to the corresponding portion of the upper side 5a1 of the revolving door 5a, a lip portion 3a of the upper rail portion 3, 3a is formed by a groove member 6b arranged in a downwardly opened state so that both side ends thereof are in contact with the inner surface. The connecting shaft 6a is threaded into the middle female threaded portion of the groove 6b in the middle of the upper portion thereof, and the upper end thereof is pressed against the upper inner surface 3b of the upper rail portion 3 in a stretched state. The both ends of the groove member 6b are brought into pressure contact with the inner surfaces of the lip portions 3a and 3a of the upper rail portion 3, and together, the coupling shaft 6a is fixed to the upper rail portion 3.

  As described above, the lower portion of the coupling shaft 6a is rotatably coupled to the corresponding portion of the upper side 5a1 of the rotary door 5a. This rotatable coupling is shown in FIG. 3 (a). Further, the lower part of the coupling shaft 6a is rotatably passed through a through hole opened in the metal square tube member which is the upper side 5a1 of the revolving door 5a, and a slight margin is provided at a position above and below the through hole of the coupling shaft 6a. The nut members are screwed together and each nut member is provided with a rotation stop.

  As shown in FIG. 3A, the lower coupling means 7 includes a coupling shaft 7a that is rotatably coupled to the corresponding portion of the lower side 5a2 of the rotary door 5a, a lip portion 4a of the lower rail portion 4, 4a is formed by a groove member 7b arranged in an upwardly opened state so that both side ends thereof are in contact with the inner surface. The coupling shaft 7a is threaded into the middle female threaded portion of the groove member 7b in the middle of the lower portion thereof, and the lower end thereof is pressed against the lower inner surface 4b of the lower rail portion 4 in a stretched state. The both end portions of the groove member 7b are brought into pressure contact with the inner surfaces of the lip portions 4a and 4a of the lower rail portion 4, and the coupling shaft 7a is fixed to the lower rail portion 4 together.

  As described above, the upper portion of the coupling shaft 7a is rotatably coupled to the corresponding portion of the lower side 5a2 of the rotary door 5a. This rotatable coupling is shown in FIG. 3 (a). Further, the upper part of the coupling shaft 7a is rotatably passed through a through hole opened in the metal square tube member which is the lower side 5a2 of the rotary door 5a, and a slight margin is provided at a position above and below the through hole of the coupling shaft 7a. The nut members are screwed together and each nut member is provided with a rotation stop.

  As described above, the suspending means 8 is arranged between the upper rail portion 3 and the upper side 5b1 of the movable door 5b. The suspending means 8 is a revolving door 5a constituting the folding door 5. And the movable door 5b are arranged in a portion symmetrical to the upper coupling means 6 of the revolving door 5a with the temporary vertical line in the middle in the horizontal direction as the axis of symmetry. As described above, the slide member 9 is disposed between the lower rail portion 4 and the lower side 5b2 of the movable door 5b. The slide member 9 includes the suspension means 8 among them. And the upper and lower portions corresponding to each other.

  Further, as shown in FIG. 3 (b), the suspending means 8 includes a shaft member 8a rotatably coupled to a corresponding portion of the upper side 5b1 of the movable door 5b, and a direction orthogonal to the upper portion of the shaft member 8a. And an axle 8b attached to the wheel 8b, and wheel members 8c and 8c that are rotatably arranged at both ends of the axle 8b and disposed on the inner surfaces of the lip portions 3a and 3a of the upper rail portion 3, respectively.

  As described above, the lower portion of the shaft member 8a is rotatably coupled to the corresponding portion of the upper side 5b1 of the movable door 5b. This rotatable coupling is shown in FIG. 3 (b). Further, the lower part of the shaft member 8a is rotatably passed through a through hole opened in the metal square tube member which is the upper side 5b1 of the movable door 5b, and the enlarged head is positioned directly below the through hole of the shaft member 8a. The nut member is screwed with a slight margin at a position immediately above the through hole, and the nut member is provided with a rotation stop.

  Further, as shown in FIG. 3B, the slide member 9 is coupled to a shaft member 9a that is rotatably coupled to the corresponding portion of the lower side 5b2 of the movable door 5b, and is coupled to a lower portion of the shaft member 9a. The sliding member 9b is located between the lip portions 4a and 4a on both sides of the lower rail portion 4.

  As shown in FIG. 3 (b), the shaft member 9a can be freely coupled so that the upper portion of the shaft member 9a can be freely rotated through a through hole opened in a metal square tube member which is the lower side 5b2 of the movable door 5b. The enlarged head is positioned immediately above the through hole of the shaft member 9a, the nut member is screwed with a slight margin at a position immediately below the through hole, and the nut member is rotated. It is configured with a stop.

  The door structure for the entrance / exit of the greenhouse of Example 1 is applied to the entrance / exit of the end face of the greenhouse 1 and is extremely narrow on both sides of the square opening 2 constituting the entrance / exit as shown in FIG. As long as the wall surface is left, a very wide entrance / exit with the majority of the opening can be constructed. Further, when the doorway is closed, a part of the rotary doors 5a and 5a of the folding doors 5 and 5 overlaps with both side walls of the rectangular opening 2 constituting the doorway, so that the doorway is fully closed. In this case, the closed state is highly sealed.

  According to the door structure for the entrance and exit of the greenhouse of the first embodiment, as the door member, the folding doors 5 and 5 each including the revolving door 5a and the movable door 5b coupled to the hinge door h are employed. When opening the doorway, as shown in FIGS. 2 (a) to 2 (c), the sides of the revolving doors 5a and 5a are rotated outward so that the revolving doors 5a and 5a are respectively connected to the doorway. At a position close to the corresponding side of the square opening 2, the movable doors 5b and 5b are simultaneously moved along the upper rail portion 3 and the lower rail portion 4 at the same time. While moving to the revolving doors 5a and 5a, the reversing is performed, and the state is shifted to a state parallel to the revolving doors 5a and 5a.

  The rotation of the rotary doors 5a and 5a is performed around the coupling shaft 6a of the upper coupling means 6 and the coupling shaft 7a of the lower coupling means 7, respectively. Rolling movement operation on the lip portions 3a and 3a of the upper rail portion 3 of the wheel members 8c and 8c of the suspension means 8 and between the lip portions 4a and 4a of the lower rail portion 4 of the sliding member 9b of the slide member 9 respectively. It is performed smoothly by the slide movement operation. Thus, the fully opened state shown in FIG.

  Thus, when the doorway is opened, the door member is composed of the pair of folding doors 5 and 5, so that a retreat space for retracting the door member like a sliding door is provided on the side of the rectangular opening 2 constituting the doorway. do not need. Therefore, in the case where the door member is a sliding door, a portion serving as such a retreat space can be included in the opening for the entrance and exit, and the entrance and exit can be configured to be large. In the case where the door member is a double door, the width of the single door cannot be made extremely large from the viewpoint of operability or the support of the door member by the housing structure. According to the door structure for the entrance / exit of this greenhouse, a pair of folding doors 5 and 5 are adopted, so that it can be configured to be twice as wide as that, and a wide entrance / exit can be configured. It is what.

  Further, as described above, when the pair of folding doors 5 and 5 are attached to the square opening 2 constituting the doorway, as described above, when the doorway is closed, the hermeticity is increased, and even when the door is opened. There is no inconvenience.

<Example 2>
As shown in FIGS. 4 and 5, the door structure of the entrance / exit of the greenhouse of the second embodiment is that the entrance / exit of the first embodiment is composed of a pair of folding doors 5, 5, whereas one folding door. 5. The rest is the same as in the first embodiment.

  4 and 5, the same reference numerals are given to the same components as those in the first embodiment. The same parts as those in the first embodiment will be described briefly, and only different parts will be described in detail.

  As shown in FIGS. 4 and 5, the door structure of the entrance / exit of the greenhouse according to the second embodiment basically includes a rectangular opening 12 constituting the entrance / exit of the greenhouse 11 and an upper side of the square opening 12. An upper rail portion 13 disposed on the indoor side along the lower rail portion 14 along the lower side, and the revolving doors 5a disposed between the upper rail portion 13 and the lower rail portion 14 along the lower side. A folding door 5 comprising a movable door 5b, an upper coupling means 6 for coupling the upper side 5a1 of the revolving door 5a to the upper rail portion 13, and a lower coupling means for coupling the lower side 5a2 of the revolving door 5a to the lower rail portion 14. 7 and the suspension means 8 for suspending the upper side 5b1 of the movable door 5b to be movable and rotatable on the upper rail portion 13 and the lower side 5b2 of the movable door 5b to the lower rail portion 14 And which is constituted by a slide member 9 which engages slidably.

  The greenhouse 11 to which the second embodiment is applied is also for agriculture or horticulture, and is not limited to a specific structure.

  The rectangular opening 12 that constitutes the entrance / exit can be formed on either the side surface or the end surface of the greenhouse 11 as long as it is an upright plane. In many cases, the construction on the wife surface is practically convenient in the sense that the entire surface of the part is an upright plane. In this Example 2, as shown in FIG. 4, it applies to the entrance / exit of the end face of the greenhouse 11.

  In the second embodiment, the upper rail portion 13 and the lower rail portion 14 are smaller in the greenhouse 11 than that in the first embodiment. Although it is shorter than the lower rail part 4, it is exactly the same as those of the first embodiment except that. Further, both ends of the upper rail portion 13 and the lower rail portion 14 are extended beyond the sides of the rectangular opening 12 as in the first embodiment, and as shown in FIG. It extends to the side of the greenhouse 11. Furthermore, as described above, the upper rail portion 13 and the lower rail portion 14 are both arranged on the indoor side closest to the rectangular opening 12 constituting the entrance / exit.

  Note that the members constituting the upper rail portion 13 and the lower rail portion 14 are not limited to the lip groove shape material as in the first embodiment, but can be freely elongated in various configurations. A member can be employed. Any material may be used as long as it has sufficient strength to exhibit its respective functions. Usually, an aluminum alloy or the like is advantageous because it can secure the required strength and is lightweight.

  As shown in FIG. 4, the folding door 5 is disposed between the upper rail portion 13 and the lower rail portion 14. Further, as shown in the figure, the folding door 5 is unfolded so that the rectangular opening 12 is fully closed, and the side of the rotating door 5a on the non-joining portion side is the rectangular opening. 12 is in a state of being superimposed on the back side of the outer wall surface of one side of the 12 and the non-joining portion side of the movable door 5b is superimposed on the back side of the outer wall surface of the other side of the rectangular opening 12 Arrange so that

The structure of the folding door 5 is exactly the same as that of the first embodiment.
The upper coupling means 6 has the same configuration and installation site as those of the first embodiment. Further, the lower coupling means 7 has the same configuration and installation site as those of the first embodiment.

  The suspending means 8 is arranged between the upper rail portion 13 and the upper side 5b1 of the movable door 5b. The suspending means 8 constitutes the folding door 5 as in the first embodiment. The temporary vertical line in the horizontal direction between the revolving door 5a and the movable door 5b is used as a symmetry axis, and the revolving door 5a is configured to be symmetrical with the upper coupling means 6. At the same time, the suspending means 8 is also configured to be symmetrical with the upper coupling means 6 of the rotary door 5a with the virtual vertical line in the horizontal width direction of the rectangular opening 12 as the axis of symmetry. As described above, the slide member 9 is disposed between the lower rail portion 4 and the lower side 5b2 of the movable door 5b. The slide member 9 includes the suspension means 8 among them. And are configured at positions corresponding to the upper and lower sides.

  The structure of the suspending means 8 is exactly the same as that of the first embodiment. The configuration of the slide member 9 is exactly the same as that of the first embodiment.

  The door structure of the entrance / exit of the greenhouse of Example 2 is similar to that of Example 1, but is applied to the entrance / exit of the face of the slightly smaller greenhouse 11, as shown in FIG. An extremely wide entrance / exit having a large portion as an opening was able to be formed to such an extent that an extremely narrow wall surface was left on both sides of the rectangular opening 12 to be formed. That is, a large entrance / exit was able to be comprised compared with the area of the wife face. Further, a part of the rotary door 5a of the folding door 5 overlaps with a wall surface on one side of the rectangular opening 12 constituting the entrance and exit, and a side portion of the movable door 5b of the folding door 5 overlaps with the other wall surface. When the doorway is fully closed, the sealing performance is higher. In this way, the greenhouse 11 can be almost completely closed.

  According to the door structure for the entrance and exit of the greenhouse of the second embodiment, as the door member, the folding door 5 including the revolving door 5a and the movable door 5b coupled to the hinge 5h is adopted. In the case of opening, as shown by a solid line and a one-dot chain line in FIG. 5, the revolving door 5 a side is rotated outward so that the revolving door 5 a is close to the corresponding side of the rectangular opening 12 of the entrance / exit. At this time, the movable door 5b is simultaneously rotated along the upper rail portion 13 and the lower rail portion 14 while being moved toward the rotary door 5a. It is made to become a state parallel to this revolving door 5a. In this way, the fully opened state indicated by the alternate long and short dash line in FIG.

  As described above, since the door member is formed of the folding door 5 when the doorway is opened, a wide doorway can be configured as described in the first embodiment. In addition, because of the relationship of how the folding door 5 is attached to the square opening 12 constituting the doorway, when the doorway is closed, the sealing performance becomes high, and there is no inconvenience when it is opened.

  It can be used effectively in the field of greenhouse production.

DESCRIPTION OF SYMBOLS 1 Plastic greenhouse 1a Square opening support 2 Square opening 3 Upper rail part 3a Upper rail part lip part 3b Upper rail part upper inner surface 4 Lower rail part 4a Lower rail part lip part 4b Lower rail inner part 5 Folding door 5a Revolving door 5a1 Upper side of the revolving door 5a2 Lower side of the revolving door 5b Moving door 5b1 Upper side of the moving door 5b2 Lower side of the moving door 6 Upper coupling means 6a Coupling shaft 6b Groove material 7 Lower coupling means 7a Coupling shaft 7b Groove shape Material 8 Suspension means 8a Shaft member 8b Axle 8c Wheel member 9 Slide member 9a Shaft member 9b Sliding member 11 Greenhouse 12 Square opening 13 Upper rail portion 14 Lower rail portion h Hinge

Claims (4)

A rectangular opening constituting the entrance of the greenhouse,
An upper rail portion disposed on the indoor side along the upper side of the rectangular opening and a lower rail portion disposed on the indoor side along the lower side, each end of the square opening extending beyond both sides of the rectangular opening. Extended upper and lower rails; and
A folding door comprising a revolving door disposed between the upper rail portion and the lower rail portion, and a movable door foldably coupled thereto by a hinge;
Upper coupling means arranged at a position in the middle of the width of the upper side of the revolving door to couple the revolving door of the folding door to the upper rail portion and the lower rail portion so as to be rotatable in the middle of the lateral width direction; Lower coupling means disposed at a position corresponding to the upper coupling means on the lower side of the revolving door, the upper coupling means coupled to a position adjacent to one side of the rectangular opening of the upper rail portion; Lower coupling means coupled at a position corresponding to the upper coupling means of the lower rail portion;
The upper side of the movable door of the folding door is suspended from the upper rail part so as to be rotatable and movable. The upper coupling means and the movable door and the middle part of the movable door are symmetrical about the virtual vertical line of the intermediate part. In the closed state and in a closed state, the suspension means disposed at a position close to the other side of the rectangular opening, and the lower side of the moving door of the folding door are rotatable and slidable to the lower rail portion. A slide member that is freely engaged and arranged in a positional relationship corresponding to the vertical direction of the suspension means;
A door structure for the entrance and exit of a greenhouse. The upper rail part is composed of a lip groove member (C-shaped member) with the opening facing downward, and the lower rail part is composed of a lip groove member (C-shaped member) with the opening facing upward,
The upper coupling means includes a coupling shaft that is rotatably coupled to the upper side of the revolving door, and a groove member that is arranged in a downward opening state so that both side ends thereof are in contact with the inner surface of the lip portion of the upper rail portion. The upper end of the coupling shaft is screwed in the middle of the upper portion of the coupling shaft, and the upper end of the coupling shaft is pressed against the upper inner surface of the upper rail portion so that the both ends are connected to the upper rail portion. And a groove shape material in pressure contact with the inner surface of the lip part,
Further, the lower coupling means includes a coupling shaft that is rotatably coupled to the lower side of the revolving door, and a groove member that is arranged in an upwardly opened state so that both side ends thereof are in contact with the inner surface of the lip portion of the lower rail portion. The lower end of the coupling shaft is screwed into the middle portion of the lower portion of the coupling shaft and the lower end of the coupling shaft is pressed against the lower inner surface of the lower rail portion so that the both ends are connected to the lower rail. The door structure for an entrance / exit of a greenhouse according to claim 1, wherein the door is configured to be in pressure contact with the inner surface of the lip portion. The suspension means is a shaft member rotatably coupled to the upper side of the movable door, an axle attached in a direction orthogonal to the shaft member, and a wheel member rotatably disposed at both ends of the axle, A wheel member that is arranged to freely roll on the inner surface of the lip portion of the upper rail portion, and
The slide member is a shaft member that is rotatably coupled to the lower side of the movable door, and a sliding member that is coupled to a lower portion of the shaft member, and is slidable between lip portions on both sides of the lower rail portion. The door structure for an entrance / exit of a greenhouse according to claim 2, comprising a sliding member arranged. A rectangular opening constituting the entrance of the greenhouse,
An upper rail portion disposed on the indoor side along the upper side of the rectangular opening and a lower rail portion disposed on the indoor side along the lower side, each end of the square opening extending beyond both sides of the rectangular opening. Extended upper and lower rails; and
A pair of folding doors comprising a revolving door disposed between the upper rail portion and the lower rail portion and a movable door foldably coupled to the same by a hinge, and a pair of folding doors configured symmetrically with each other; ,
The revolving doors of the pair of folding doors are arranged at intermediate positions in the width direction of the upper sides of the revolving doors so that the revolving doors can be coupled to the upper rail portion and the lower rail portion so as to be freely rotatable in the lateral width direction. Upper coupling means and lower coupling means arranged at positions corresponding to the upper coupling means on the lower side of the revolving door, each in an opening portion adjacent to the corresponding side of the rectangular opening of the upper rail portion Upper coupling means coupled to a position and lower coupling means coupled to a position corresponding to the upper and lower coupling means of the lower rail portion;
The upper sides of the movable doors of the pair of folding doors are suspended in a freely movable and rotatable manner on the upper rail portion, and the upper coupling means of the corresponding rotary doors and the intermediate portions of the movable doors and the corresponding rotary doors. Hanging means arranged in a symmetrical relationship with the virtual vertical line as the axis of symmetry, and the lower sides of the movable doors of the pair of folding doors are engaged with the lower rail portion so as to be movable and rotatable, respectively. A slide member arranged in a positional relationship corresponding to each of the corresponding hanging means;
A door structure for the entrance and exit of a greenhouse.

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