JP2015142545A - Agricultural greenhouse, and opening/closing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agricultural greenhouse capable of blocking incident light through a gap between curtains, and an opening/closing apparatus used for the greenhouse.SOLUTION: A greenhouse body 2 is constituted in a shape that a pair of sidewalls 21 and 22 facing each other and a roof 23 connecting top ends of the pair of sidewalls 21 and 22 extend in a Y-axis direction (depth direction). A first curtain 5 is provided inside the greenhouse body 2 along the roof 23, is supported by a support part 6 extending in the Y-axis direction, and opens/closes in the Y-axis direction. In a second curtain 8, an upper end part overlaps a lower end part of the first curtain 5, and a lower end part positions below the lower end part of the first curtain 5.

Description

  The present invention relates to an agricultural house used for cultivation of agricultural crops, and an opening / closing device that opens and closes a curtain provided in the agricultural house.

  In general, this type of agricultural house (vinyl house) maintains an indoor temperature, humidity, and the like and realizes an environment suitable for cultivation of agricultural products different from the outside world (for example, see Patent Document 1). The agricultural house described in Patent Document 1 is provided with a curtain (resin film or the like) that can be opened and closed in order to keep the temperature and humidity in the house constant.

JP-A-8-70710

  However, when the curtain is configured to be openable and closable, a gap is generated between the curtain and the structure to prevent the moving curtain from interfering with the structure in the house, and sunlight enters from the gap. There was a fear.

  This invention is made | formed in view of the said reason, The objective is to provide the agricultural house which can shield the incident light from the clearance gap between curtains, and the opening / closing apparatus used for this.

  The agricultural house of the present invention is provided along the roof inside the house main body in which a pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls extend in the depth direction, and inside the house main body. The first curtain supported by the support portion extended in the depth direction and opened and closed along the depth direction, the upper end portion overlaps the lower end portion of the first curtain, and the lower end portion is the first curtain And a second curtain positioned below the lower end of the curtain.

  In this agricultural house, it is preferable to include a third curtain that is provided on the pair of side walls, the upper end overlaps with the lower end of the second curtain, and the lower end moves along the vertical direction.

  In this agricultural house, it is preferable that a lower end portion of the second curtain and an upper end portion of the third curtain are formed continuously and integrally.

  In this agricultural house, a plurality of end support portions provided along both end portions in the width direction of the roof, and movable in the depth direction along the end support portions, the first curtain It is preferable to further include a suspending member configured to suspend the end portion in the width direction.

  In this agricultural house, it is preferable that the end support portion is composed of a linear member, and the suspension member has a pulley that is movable in the depth direction on the end support portion.

  In this agricultural house, it is preferable that the end support portion is constituted by a curtain rail, and the suspension member has a runner that is movable in the depth direction along the curtain rail.

  The agricultural house includes a first opening and closing device that opens and closes the first curtain, and the first opening and closing device includes an endless first string body that moves the first curtain in the depth direction; A first rotating drum that is disposed on one end side in the depth direction and on which the first string body is wound; and a first rotating drum that is disposed on the other end side in the depth direction and on which the first string body is wound. And a frictional force applying means for applying a frictional force between the first rotating drum and the first string body, and the first rotating drum and the folding portion are provided on the roof. The first curtain has one end in the depth direction fixed, the other end in the depth direction is coupled to the first string body, and the first curtain according to the rotation direction of the first rotating drum. The other end of the first curtain is preferably moved in the depth direction.

  In this agricultural house, it is preferable that the frictional force applying means is formed of an elastic member that pulls the folded portion so as to apply tension to the first string body.

  In this agricultural house, a close detection switch for detecting the closed state of the first curtain, an open detection switch for detecting the open state of the first curtain, and the first string body are provided integrally. A first contact member that contacts the first operating portion of the close detection switch at a position where the first curtain is in a closed state and reverses the contact; and the first string member is provided integrally with the first curtain, It is preferable to include a second contact member that contacts the second operation portion of the open detection switch at a position where the first curtain is in the open state and reverses the contact.

  In this agricultural house, it is preferable that the first contact member and the second contact member have elasticity in a direction along a moving direction of the first string body.

  In this agricultural house, the first operation part of the closing detection switch has elasticity in a direction along the moving direction of the first string body, and the second operation part of the opening detection switch is It is preferable to have elasticity in a direction along the moving direction of the first string body.

  In this agricultural house, the first operation portion of the closing detection switch is configured to be able to contact a first push button that reverses a contact point and the first contact member, and A second lever that has elasticity in a direction along the moving direction and operates the first push button, and the second operation portion of the open detection switch reverses the contact point. And a second lever configured to be able to come into contact with the second contact member and having elasticity in a direction along a moving direction of the first string body and operating the second push button. Is preferred.

  In this agricultural house, when the close detection switch detects the closed state of the first curtain, or when the open detection switch detects the open state of the first curtain, the first rotating drum A control circuit for stopping rotation and stopping the opening and closing operation of the first curtain, and the control circuit receives an instruction to reversely rotate the first rotating drum after the rotation of the first rotating drum is stopped; It is preferable to continue the rotation stop of the first rotating drum until it is done.

  In this agricultural house, the first contact member maintains a contact state between the first contact member and the close detection switch until a predetermined force is applied in a direction away from the close detection switch. A second holding member that keeps the contact state between the second contact member and the open detection switch until a predetermined force is applied in a direction away from the open detection switch. It is preferable to provide an anti-bounce member.

  In this agricultural house, it is preferable that the first bounce preventing member and the second bounce preventing member are made of magnets.

  In this agricultural house, the first opening / closing device is disposed above or below the first rotating drum, the first string body is wound around, and the moving direction of the first string body is changed. The close detection switch and the open detection switch are preferably provided between the pulley and the folded portion.

  In this agricultural house, it is preferable that the closing detection switch and the opening detection switch are fixed at a fixed position with respect to the pulley or the folded portion.

  The agricultural house includes a second opening and closing device that opens and closes the first curtain, and the second opening and closing device is coupled to a free end that is one end in the depth direction of the first curtain. By winding up the second string body, the second string body is wound around the second rotating drum that moves the free end in the depth direction, and the second rotating drum and the free end. A first pulley, and a second pulley on which the second string member is wound between the second rotating drum and the first pulley, and the second rotating drum and the first pulley It is preferable that the pulley is disposed along the roof, and the second pulley is disposed below the second rotating drum and the first pulley.

  In this agricultural house, a fence is provided below the second rotating drum and the first pulley so as to surround the second pulley and the second string, and the second pulley is provided. Is preferably fixed to the fence.

  The opening / closing device of the present invention is provided along the roof inside the house body in which a pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls extend in the depth direction, and extends in the depth direction. An opening / closing device that opens and closes a curtain that is supported by a supporting portion and that opens and closes along the depth direction, the first endless string body that moves the curtain in the depth direction, and one end in the depth direction A first rotating drum that is arranged on the side and on which the first string body is hung, a folded portion that is arranged on the other end side in the depth direction and on which the first string body is hung, and Friction force applying means for applying a friction force between the first rotating drum and the first string body, the first rotating drum and the folded portion are arranged along the roof, The curtain is fixed at one end in the depth direction, The other end in the depth direction is coupled to the first string body, the first string body is pulled out from the first rotating drum according to the rotation direction of the first rotating drum, and the other end of the curtain Moves in the depth direction.

  In this opening / closing apparatus, it is preferable that the frictional force applying means is constituted by an elastic member that pulls the folded portion so as to apply tension to the first string body.

  The opening / closing device of the present invention is provided along the roof inside the house body in which a pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls extend in the depth direction, and extends in the depth direction. An opening / closing device that opens and closes a curtain that is supported by a supported portion and that opens and closes along the depth direction, and winds a second string coupled to a free end that is one end of the curtain in the depth direction. A second rotating drum that moves the free end in the depth direction by taking, and a first pulley on which the second string member is wound between the second rotating drum and the free end; A second pulley on which the second string is wound between the second rotating drum and the first pulley, and the second rotating drum and the first pulley are along the roof. And the second pulley is arranged in the second rotation. Characterized in that it is located below the drum and the first pulley.

  As described above, the present invention includes the second curtain in which the upper end overlaps with the lower end of the first curtain and the lower end is positioned below the lower end of the first curtain. The second curtain has an effect of blocking incident light from the gap between the first curtains.

It is a perspective view which shows schematic structure of the agricultural house of Embodiment 1. FIG. It is a schematic block diagram of the agricultural house of Embodiment 1. (A) is a front view, (b) is a plan view. It is a figure which shows the support state of the 1st curtain in the agricultural house of Embodiment 1. FIG. (A) is a front view, (b) is a side view. It is a side view which shows the attachment state of the support part in the agricultural house of Embodiment 1. FIG. It is a partially expanded view which shows the attachment state of the support part in the agricultural house of Embodiment 1. FIG. It is a side view which shows the attachment state of the support part in the agricultural house of Embodiment 1. FIG. It is a side view which shows the attachment state of the support part in the agricultural house of Embodiment 1. FIG. It is a side view which shows the attachment state of the reinforcement member in the agricultural house of Embodiment 1. It is an enlarged view which shows the attachment state of the reinforcement member in the agricultural house of Embodiment 1. FIG. It is an enlarged view which shows the attachment state of the reinforcement member in the agricultural house of Embodiment 1. FIG. It is a figure which shows the attachment state of the 2nd curtain in the agricultural house of Embodiment 1. FIG. It is a figure which shows the attachment state of the 2nd curtain in the agricultural house of Embodiment 1, and a side curtain. It is a figure which shows the attachment state of the integral curtain in the agricultural house of Embodiment 1. FIG. It is a schematic block diagram which shows the installation position of the end support part in the agricultural house of Embodiment 1. It is a schematic block diagram of the end support part and suspension member in the agricultural house of Embodiment 1. It is a schematic block diagram of the modification of the end support part in the agricultural house of Embodiment 1, and a suspension member. It is a schematic block diagram of the modification of the end support part in the agricultural house of Embodiment 1, and a suspension member. It is a schematic block diagram of the opening / closing apparatus in the agricultural house of Embodiment 1. It is an external appearance perspective view of the opening / closing detection part in the agricultural house of Embodiment 1. FIG. It is an external appearance perspective view of the opening / closing detection part which removed the case in the agricultural house of Embodiment 1. FIG. It is a top view of the opening-and-closing detection part which removed the case in the agricultural house of Embodiment 1. It is a schematic block diagram of the modification of the opening / closing detection part in the agricultural house of Embodiment 1. FIG. (A) is a top view, (b) is a front view. It is a perspective view which shows the structure of the modification of the opening / closing detection part in the agricultural house of Embodiment 1. FIG. It is a schematic block diagram of the modification of the opening / closing detection part in the agricultural house of Embodiment 1. FIG. (A) is a top view, (b) is a front view. It is a schematic block diagram of the modification of the opening / closing detection part in the agricultural house of Embodiment 1. FIG. It is a schematic block diagram of the opening / closing apparatus in the agricultural house of Embodiment 2.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The agricultural house 1 according to the present embodiment maintains an indoor temperature, humidity, and the like and realizes an environment suitable for cultivation of agricultural products different from the outside world. Below, although the agricultural house 1 mainly used for cultivation of soft vegetables (spinach, Japanese mustard spinach, etc.) will be described as an example, the purpose of the agricultural house 1 is not limited.

  The schematic block diagram of the agricultural house 1 of this embodiment is shown in FIG. The agricultural house 1 of this embodiment includes a house body 2, a first curtain 5, and a second curtain 8. In addition, it demonstrates using the X-axis direction (width direction of the agricultural house 1), the Y-axis direction (depth direction of the agricultural house 1), and the Z-axis direction (height direction of the agricultural house 1) shown in FIG. To do.

  The house body 2 is configured in a shape in which a pair of side walls 21 and 22 facing each other and a roof 23 connecting the upper ends of the pair of side walls 21 and 22 are extended in the Y-axis direction (depth direction). The first curtain 5 is provided on the inner side of the house body 2 along the roof 23 and supported by a support portion 6 (see FIGS. 2A and 2B) extending in the Y-axis direction. Open and close along. The second curtain 8 has an upper end overlapping the lower end of the first curtain 5, and a lower end positioned below the lower end of the first curtain 5.

  Below, the agricultural house 1 of this embodiment is demonstrated in detail using FIG. 1, FIG. 2 (a) (b).

  The house main body 2 is configured in a shape in which a pair of side walls 21 and 22 facing each other and a roof 23 connecting the upper ends of the pair of side walls 21 and 22 are extended in the Y-axis direction (depth direction). In the present embodiment, the house body 2 has end walls 24 at both ends in the Y-axis direction, and the end walls (not shown) are provided in the end walls 24.

  Specifically, the house body 2 includes a frame (frame) 3 made of metal such as aluminum, and a covering material 20 having translucency and held by the frame 3. The covering material 20 is provided so as to cover substantially the entire house body 2. The covering material 20 may be made of, for example, a transparent vinyl sheet or glass so as to achieve heat insulation and moisture retention in the house body 2 without substantially blocking sunlight, and in consideration of air permeability. You may be comprised partially by the net | network (insect repellent net etc.).

  The frame 3 has an arch shape and a plurality of arch portions 31 arranged in the Y-axis direction (depth direction), and a plurality of connecting members 32 each extending in the Y-axis direction and connecting the plurality of arch portions 31. Have. Each of the plurality of arch portions 31 includes a pair of wall pieces 311 and 312 along the Z-axis direction (height direction), and a roof piece 313 that connects the upper ends of the pair of wall pieces 311 and 312. Yes.

  That is, the plurality of wall pieces 311 arranged in the Y-axis direction and the covering material 20 provided between these wall pieces 311 constitute the side wall 21, and the plurality of wall pieces 312 arranged in the Y-axis direction and these wall pieces. The covering material 20 provided between the 312 constitutes the side wall 22. In addition, a plurality of roof pieces 313 arranged in the Y-axis direction and the covering material 20 provided between these roof pieces 313 constitute the roof 23. Here, each arch part 31 is formed in a shape that protrudes upward such that the roof piece 313 becomes higher toward the center in the X-axis direction (width direction), for example, a semicircular shape or a triangular shape. Therefore, the roof 23 is formed in a semi-cylindrical shape or a triangular prism shape, for example.

  The plurality of connecting members 32 include at least shoulder portions 321 that connect the upper ends (connection points with the roof piece 313) of the plurality of wall pieces 311 arranged in the Y-axis direction, and the plurality of wall pieces arranged in the Y-axis direction. The shoulder part 322 which connects the upper ends (connection point with the roof piece 313) of 312 is included. That is, the side walls 21 and 22 of the house body 2 and the roof 23 are separated by the shoulder portions 321 and 322. Further, the plurality of connecting members 32 include a ridge portion 323 that connects the tops of the plurality of roof pieces 313 arranged in the Y-axis direction in addition to the shoulder portions 321 and 322.

  Further, the frame 3 of the house body 2 is arranged at both ends in the Y-axis direction along planes orthogonal to the Y-axis direction (XZ plane in FIG. 1), and at least beams 33 that support the roof 23. In addition. The beam 33 is provided inside each arch portion 31 located at both ends in the Y-axis direction. That is, the arch portions 31 and the beams 33 at both ends in the Y-axis direction and the covering material 20 provided inside each arch portion 31 constitute the end wall 24.

  Fans 241 are provided on each end wall 24 positioned at both ends of the house body 2 in the Y-axis direction. The fan 241 is provided in the central portion of the end wall 24 in the X-axis direction and in the vicinity of the upper end portion, and is supported by the beam 33. Therefore, in the agricultural house 1, by operating (rotating) the fan 241, an air flow is forcibly generated in the house body 2, and ventilation (replacement of air) of the internal space of the house body 2 can be performed. .

  Moreover, the agricultural house 1 of this embodiment is further provided with the watering apparatus 11 for performing watering as shown in FIG. The water sprinkler 11 includes a water injection unit 111 provided in the house body 2 and a tank 112 that supplies water to the water injection unit 111. The water injection unit 111 is composed of pipes or tubes provided on the side walls 21 and 22 along the Y-axis direction, and is appropriately disposed on the side surface so as to inject water supplied from the tank 112 into the house body 2. Holes or nozzles (not shown) are formed at regular intervals. Here, the water sprinkling device 11 is provided with water injection portions 111 at positions corresponding to the upper end portion and the lower end portion of each of the side walls 21, 22. Mist-like water is sprayed (sprayed) from the nozzles of the water injection unit 111 provided at the upper ends of the side walls 21 and 22, and water is supplied from the holes of the water injection unit 111 provided at the lower ends of the side walls 21 and 22. Erupts (sprinkles).

  By the way, in the agricultural house 1 of this embodiment, the 1st curtain 5 is provided along the roof 23 inside the house main body 2 comprised as mentioned above. The first curtain 5 is supported by a support portion 6 (see FIGS. 2A and 2B) that extends in the Y-axis direction (depth direction), and opens and closes along the support portion 6 in the Y-axis direction. Is configured to do. Here, as an example, the first curtain 5 is a dimming curtain having a light blocking rate of about 65 to 75%, and in the fully closed state, the first curtain 5 is the sunlight (sunlight) that is irradiated into the house body 2 through the roof 23. Has a function to block a part. In soft vegetables and the like, if the light irradiated into the house body 2 is too strong, the efficiency of photosynthesis deteriorates. However, the agricultural house 1 has such a first curtain 5 for dimming. The environment suitable for cultivation of agricultural products can be realized by adjusting the amount of solar radiation in the main body 2.

  Below, the concrete structure of the 1st curtain 5 and the support part 6 is demonstrated with reference to FIG. 2 (a) (b) and FIG. 3 (a) (b).

  The support portion 6 is composed of a plurality of linear members stretched between both ends of the house body 2 in the Y-axis direction, that is, between the pair of end walls 24. The linear member here is, for example, a wire or a rope. In the present embodiment, the support portion 6 is fixed to the beam 33 (see FIG. 1). That is, as described above, the beams 33 that support at least the roof 23 are provided on the end walls 24 located at both ends in the Y-axis direction of the house body 2. 33 is also used as a member for fixing both end portions of the support portion 6. The first curtain 5 is supported by the support unit 6 so as to be suspended from the support unit 6.

  Three or more support portions 6 are provided side by side in the X-axis direction (width direction) which is the opposing direction of the pair of side walls 21 and 22. In the present embodiment, one support portion 6 is provided at each position near the shoulder portions 321 and 322 (see FIG. 1) and near the ridge portion 323 (see FIG. 1). The three support portions 6 in total are provided at substantially equal intervals in the X-axis direction (width direction). Here, the plurality of (three in the present embodiment) support portions 6 have the side walls 21 (or side walls 22) such that the height of the first curtain 5 increases as the distance from the side walls 21 (or the side walls 22) increases. ) The height to support the curtain is different according to the distance from. In other words, as shown in FIG. 2B, the plurality of support portions 6 are arranged at a higher position as the support portion 6 is closer to the center in the X-axis direction, whereby the first curtain 5 is arranged in the X-axis direction. It is supported along the shape of the roof 23 so that the central part of the roof is the highest.

  Moreover, the structure arrange | positioned at the ground vicinity may be sufficient as the edge part of the support part 6 as a modification of this embodiment. As shown in FIGS. 4 and 5, a column 331 is provided on the end wall 24, and the end of the support portion 6 is fixed to one end of the turnbuckle 333 via a ring portion of an eyebolt 332 provided above the column 331. Is done. The other end of the turnbuckle 333 is fixed to an eyebolt 334 provided near the ground of the column 331. Therefore, the user can adjust the tension (tension) of the support portion 6 at a position close to the ground by rotating the body portion of the turnbuckle 333, thereby improving workability. In addition, since work at high places is reduced, safety can be improved and construction costs can be reduced. An eye nut may be used instead of the eye bolts 332 and 334.

  Moreover, as shown in FIG. 6, the structure which provided the coil spring 335 between the turnbuckle 333 and the edge part of the support part 6 may be sufficient. By providing the coil spring 335, the tension (tension) of the support portion 6 can be grasped based on the length of the coil spring 335 without using a tension measuring device. For example, during construction or maintenance, the tension of the support portion 6 can be easily adjusted to a predetermined value by rotating the body portion of the turnbuckle 333 so that the coil spring 335 has a predetermined length. it can.

  As another modification, as shown in FIG. 7, a structure in which a weight 336 is suspended from the end of the support portion 6 may be used. By setting the weight 336 to a predetermined weight, the tension of the support portion 6 can be easily set to a predetermined value without using a tension measuring device. Further, by using the weight 336, even when the support portion 6 is extended, the tension of the support portion 6 can be maintained at a predetermined value.

  Further, as described above, the house main body 2 has a plurality of support portions 6 stretched between the pair of wife walls 24 and receives wind, so that a large load is applied to the wife wall 24. Therefore, in the present embodiment, a reinforcing member 34 is provided in order to prevent distortion of the house body 2 (wife wall 24) (see FIGS. 8 and 9).

  As shown in FIG. 9, the column 331 is specifically formed in a prismatic shape, and the upper end portion 3311 provided with the eyebolt 332 is crushed and formed in a flat plate shape. The reinforcing member 34 is configured by a metal pipe extending in the depth direction, and is fixed to the plurality of arch portions 31 by the fixing member 341 in a state where one end portion is in contact with the upper end portion 3311 of the column 331. Yes. Thereby, the load which the wife wall 24 receives is distributed also to the some arch part 31 via the reinforcement member 34, and distortion of the house main body 2 (wife wall 24) can be prevented. Moreover, the bolt 342 is attached so that the upper end part 3311 of the pillar 331 formed in flat form may be penetrated. The reinforcing member 34 can be prevented from being displaced by being fixed in a state where the reinforcing member 34 is inserted into the bolt 342 protruding from the upper end portion 3311 of the column 331.

  As a modification of the present embodiment, as shown in FIG. 10, a connection fitting 343 having a U-shaped cross section that connects the arch portion 31 constituting the end wall 24 and the upper end portion 3311 of the column 331 is fixed by a bolt 342. The reinforcing member 34 is fixed in a state where it is inserted into the bolt 342. Thereby, the bolt 342 can be used for fixing the connection fitting 343 and preventing the displacement of the reinforcing member 34.

  Further, as shown in FIGS. 3A and 3B, a plurality of pulleys 71 are attached to each support portion 6 so as to be aligned in the longitudinal direction (Y-axis direction). These are configured to be movable on the support portion 6 along the support portion 6. Therefore, the interval between the pulleys 71 adjacent in the Y-axis direction on the same support portion 6 changes. A clamp 72 for holding the first curtain 5 is connected to each pulley 71 in a suspended manner.

  The first curtain 5 is made of, for example, a synthetic resin, and has sufficient flexibility to be freely opened and closed. The first curtain 5 is held in such a manner that each part is sandwiched by clamps 72 connected to each pulley 71, and is suspended from each support part 6 at a plurality of locations in the X-axis direction. 6 is supported. Thereby, each part hold | maintained at the clamp 72 among the 1st curtains 5 moves to the Y-axis direction along the support part 6 with the movement of the pulley 71. FIG. However, the clamp 72 that holds one end portion of the first curtain 5 in the Y-axis direction does not move from one end portion of the support portion 6 in the longitudinal direction (Y-axis direction). ) Is fixed.

  According to the above configuration, when the pulley 71 moves on the support portion 6 along the support portion 6, the clamp 72 connected to the pulley 71 moves in the Y-axis direction together with the first curtain 5. The first curtain 5 opens and closes. In other words, the first curtain 5 moves the free end in the Y-axis direction with the movement of the pulley 71 while fixing the fixed end at a fixed position with one end in the Y-axis direction as a fixed end and the other end as a free end. By opening and closing, it opens and closes along the support part 6 in the Y-axis direction. Therefore, the first curtain 5 is fully opened when the free end is closest to the fixed end, and is fully closed when the free end is farthest from the fixed end. The first curtain 5 in the fully closed state covers substantially the entire area of the roof 23 in the house body 2.

  Further, in this configuration, when the same number of pulleys 71 are attached to the plurality of support portions 6 that support the first curtain 5 and the first curtain 5 is in the fully closed state, the plurality of pulleys 71 are provided. The clamps 72 supported by the support portion 6 are located on the same straight line along the X-axis direction. In other words, the first curtain 5 is supported by the support unit 6 in such a manner that the same position in the Y-axis direction is held by a plurality of clamps 72 suspended from different support units 6. Therefore, when the first curtain 5 is changed from the fully closed state to the fully open state, the first curtain 5 is folded so that the portion held by the clamp 72 hangs down in the Y-axis direction. That is, the first curtain 5 in the fully open state is folded so as to be mountain-folded at the portion held by the clamp 72.

  Here, in order to prevent the first curtain 5 that opens and closes along the Y-axis direction from interfering with the frame 3 and the like in the house body 2, both ends of the first curtain 5 in the X-axis direction and the frame 3. A gap is formed between each of the shoulder portions 321 and 322. Therefore, sunlight may enter the house main body 2 through the gap between the first curtain 5 and the shoulder portions 321 and 322 in the vicinity of the shoulder portions 321 and 322. Therefore, the agricultural house 1 of this embodiment includes a second curtain 8 that closes the gap.

  The second curtain 8 is made of a synthetic resin having a light shielding property (a light-reducing property). (See FIG. 1). Specifically, as shown in FIG. 11, the second curtain 8 uses a plurality of fixing members 81, the lower end portion is fixed to the shoulder portions 321 and 322 at appropriate intervals, and the upper end portion is a roof piece. It is fixed to 313. The fixing member 81 is configured by a cylindrical body having a C-shaped cross section, and the second curtain 8 is fixed by fitting the shoulder portions 321 and 322 and the roof piece 313 with the second curtain 8 sandwiched therebetween. . In order to reduce the area shielded by the second curtain 8 when the first curtain 5 is open, in the present embodiment, the second curtain 8 has an upper end at the lower end of the first curtain 5. It is formed in a dimension that overlaps the part. In addition, the arrow of FIG. 11 has shown irradiation of sunlight.

  That is, the second curtain 8 has an upper end overlapping the lower end of the first curtain 5 and a lower end positioned below the lower end of the first curtain 5. Therefore, the second curtain 8 closes the gap between the first curtain 5 and the roof 23, and sunlight can be prevented from entering the house body 2 through the gap.

  Furthermore, the agricultural house 1 of the present embodiment includes a first side curtain 13 (third curtain) provided inside each side wall 21, 22 and a second side provided outside each side wall 21, 22. The side curtain 14 may be provided (see FIG. 1). Here, as an example, the first side curtain 13 is made of the same material as the first curtain 5 and has a light shielding (dimming) property, and the second side curtain 14 is transparent. Each of the first side curtain 13 and the second side curtain 14 has an upper end fixed in the vicinity of the shoulders 321 and 322, and is configured to be openable and closable in the Z-axis direction (vertical direction).

  Specifically, the first and second side curtains 13 and 14 are opened and closed in the Z-axis direction by changing the height position of the free end from the ground with the upper end as a fixed end and the lower end as a free end. To do. Here, since the first side curtain 13 and the second side curtain 14 have the same configuration for opening and closing, in the following, the first side curtain 13 is taken as an example, and the detailed configuration is described with reference to FIG. To explain. In addition, the arrow of FIG. 12 has shown irradiation of sunlight.

  As shown in FIG. 12, the side curtain 13 is fixed to the shoulders 321 and 322 using a fixing member 81 with the upper end overlapped with the lower end of the second curtain 8, and has a rod-shaped core at the lower end. A material 131 is provided. Here, the opening / closing device 15 for opening and closing the side curtain 13 includes a fixed pulley 151 fixed to the upper end of each side wall 21, 22, and a string body 152 that can be wound around the fixed pulley 151. Yes. The string body 152 here is, for example, a rope or a wire. The string 152 has a free end of the side curtain 13 coupled to a part thereof. Further, in the present embodiment, the side curtain 13 has a plurality of hooks (not shown) such as hooks on the extension line in the Z-axis direction of the connecting portion with the string body 152. The string body 152 is inserted.

  Thereby, the opening / closing apparatus 15 can move the string body 152 by rotating the fixed pulley 151 and move the free end of the side curtain 13 together with the core member 131 in the Z-axis direction. When the side curtain 13 is opened, the opening / closing device 15 moves the string body 152 so that the core material 131 is raised, and when closing the side curtain 13, the opening / closing device 15 moves the string body 152 so that the core material 131 is lowered.

  Here, the opening / closing device 15 has two sets of combinations of the fixed pulley 151 and the string body 152, and couples each pair of string bodies 152 to both ends of the core 131 provided at the free end of the side curtain 13. doing. Therefore, the opening / closing device 15 simultaneously moves both ends in the Y-axis direction of the core 131 provided at the free end of the side curtain 13 by rotating the fixed pulley 151 and simultaneously moving both the strings 152. be able to. Thereby, since the free end of the side curtain 13 moves in the Z-axis direction at the same time across both ends in the Y-axis direction, the side curtain 13 opens and closes all over the entire region in the Y-axis direction. Therefore, according to the agricultural house 1 having such a configuration, the position of the free end of the side curtain 13 can be aligned across both ends in the Y-axis direction, and variation in the opening degree of the side curtain 13 in the Y-axis direction. Can be suppressed.

  Further, when the side curtain 13 is opened and closed all at once in the entire Y-axis direction in this way, the opening and closing device 15 has the fixed pulleys 151 connected to each other with a shaft (not shown) so that the two sets of fixed pulleys 151 rotate simultaneously. ) Are desirable. As a result, when one fixed pulley 151 rotates, the opening / closing device 15 transmits this rotational force to the other constant pulley 151 via the shaft, and both string bodies 152 move simultaneously. Variations in the opening of the curtain 13 can be suppressed.

  Further, the opening / closing device 15 may include a driving source (not shown) such as a motor, and may be configured to open and close the side curtain 13 by rotating the fixed pulley 151 by the driving force generated by the driving source. The structure which opens and closes the side curtain 13 by rotating the fixed pulley 151 may be sufficient. In any configuration, when the fixed pulleys 151 are connected to each other by the shaft as described above, the opening / closing device 15 can open and close the side curtain 13 by rotating only one of the fixed pulleys 151.

  In the above description, the second curtain 8 and the first side curtain 13 (third curtain) are configured separately. However, as a modification of the present embodiment, the lower end of the second curtain 8 is used. And the upper end portion of the first side curtain 13 may be formed continuously and integrally. In the following description, the second curtain 8 and the first side curtain 13 that are integrally formed will be referred to as an integral curtain 80.

  The integrated curtain 80 of this modification is provided along the side walls 21 and 22 and a part of the roof 23. And as shown in FIG. 13, it fixes to the roof piece 313 with the fixing member 82 so that an upper end part may overlap with the lower end part of the 1st curtain 5, and an intermediate part is fixed to each shoulder part 321 and 322 with the fixing member 81. Has been. The fixing member 82 is an elongated attachment member 821 having a groove formed along the Y-axis direction, and a spring-like elastic member that is fitted in the groove of the attachment member 821 and biases the side surface of the groove of the attachment member 821. And a member 822. The mounting member 821 is provided along the Y-axis direction so as to connect the roof pieces 313, and the integrated curtain 80 is sandwiched between the side surface of the groove of the mounting member 821 and the elastic member 822. It is fixed to the roof piece 313. The integrated curtain 80 has the same function as that of the second curtain 8 above the shoulder portions 321 and 322, and the same function as that of the first side curtain 13 below the shoulder portions 321 and 322. In addition, the arrow of FIG. 13 has shown irradiation of sunlight.

  In the present modification, the second curtain 8 and the first side curtain 13 are integrated. Accordingly, since the second curtain 8 and the first side curtain 13 in FIG. 12 do not overlap, the material cost can be reduced. Moreover, since the fixing member 81 attached to the shoulder portions 321 and 322 sandwiches only one member (the integral curtain 80), the fixing member 81 is prevented from coming off. Moreover, the process which cuts material and forms the 2nd curtain 8 and the 1st side curtain 13 becomes unnecessary, and a construction cost is also reduced. Further, the integral curtain 80 is fixed to the shoulder portions 321 and 322 by the fixing member 81, thereby preventing the integral curtain 80 and the first curtain 5 from interfering with each other. The movement of the curtain 5 is prevented from being hindered.

  Here, since the support part 6 mentioned above needs to support the load of the whole 1st curtain 5, it was difficult to support the edge part of the 1st curtain 5. FIG. For this reason, the end of the first curtain 5 hangs down, and sunlight may enter from the gap between the second curtain 8 and the first side curtain 13. Therefore, in order to reduce the incident light from the gap, in addition to the support portion 6 described above, an end support portion 61 that supports the end portion in the X-axis direction (width direction) of the first curtain 5 is provided. There may be.

  The end support portions 61 are provided along both ends of the roof 23 in the X-axis direction (width direction) between the pair of end walls 24. The end support portion 61 is composed of a linear member such as a wire or an ester wire, and a plurality of suspension members 62 for suspending the end portion in the X-axis direction of the first curtain are provided (see FIG. 15). ). The suspension member 62 is formed in a ring shape, and is passed through the end support portion 61 and the eyelet 53 provided at the end portion of the first curtain 5, so that the end portion of the first curtain 5 is provided. Is suspended from the end support 61. The suspending member 62 is movable in the depth direction along the end support portion 61 and moves as the first curtain 5 is opened and closed.

  The end support portion 61 and the suspension member 62 having the above-described configuration suspend the end portion of the first curtain 5 in the X-axis direction at a position close to the first side curtain 13. Thereby, since the clearance gap between the 1st curtain 5 and the 1st side curtain 13 is reduced, the incident light from the clearance gap between the 1st curtain 5 and the 1st side curtain 13 can be reduced, The width of the second curtain 8 described above can also be reduced.

  Further, since the end support portion 61 supports only the end portion of the first curtain 5, a low-cost linear member that uses a low load on the end support portion 61 and the end wall 24 is used for the end support portion 61. be able to. In addition, as for the tension | tensile_strength of the end support part 61, it is desirable to set to 25 kgf or less.

  Further, as a modification of the suspension member 62, as shown in FIG. 16, a hook 622 provided with a pulley 621 that is movable in the Y-axis direction (depth direction) on the end support portion 61 and hooked on the eyelet 53 is used. The end of the first curtain 5 may be held. Since the suspension member 62 includes the pulley 621, friction between the suspension member 62 and the end support portion 61 is reduced, and the movement of the suspension member 62 can be made smooth.

  As a modification of the end support 61 and the suspension member 62, as shown in FIG. 17, the end support 61 may be composed of a pipe 611 and a curtain rail 612, and the suspension member 62 may be composed of a runner 623. Good. The pipe 611 is provided between the pair of end walls 24 and is fixed to the plurality of arch portions 31 so as not to bend. The curtain rail 612 is fixed along the pipe 611. The runner 623 is movable along the Y-axis direction (depth direction) along the curtain rail 612 and includes a hook 624 for holding the end portion of the first curtain 5. As described above, the end support portion 61 is configured by the pipe 611 and the curtain rail 612, and the suspension member 62 is configured by the runner 623, thereby preventing the end support portion 61 from drooping due to the load of the first curtain 5. be able to.

  Moreover, the agricultural house 1 according to the present embodiment has an opening / closing device 9 (for opening and closing the first curtain 5 by moving the pulley 71 so that the user can open and close the first curtain 5 relatively easily). A first opening / closing device).

  Below, the structure of the switchgear 9 is demonstrated using FIG. The opening / closing device 9 includes a rope 91 (first string), a rotating drum 92 (first rotating drum), a pulley 93, and a pulley 94 (folding portion).

  The pulley 93 is a fixed pulley and is disposed near the roof 23 on one end side in the Y-axis direction of the house body 2. The pulley 94 is formed of a fixed pulley and is disposed near the roof 23 on the other end side of the house body 2 in the Y-axis direction. The rotating drum 92 is disposed in the vicinity of the pulley 93 on one end side in the Y-axis direction of the house body 2. The pulley 93 and the pulley 94 are disposed at substantially the same height, and the rotary drum 92 is disposed at a position slightly lower than the pulley 93 and slightly on the other end side. The rope 91 is formed in an endless loop shape (endless), and is hung around a rotating drum 92 and a pulley 94 disposed at both ends in the Y-axis direction along the roof 23, and the first curtain 5 is Move (open / close) in the Y-axis direction. A wire or the like may be used instead of the rope 91.

  The first curtain 5 is fixed to the beam 33 so that one end (fixed end) in the Y-axis direction on the pulley 94 side does not move from one end in the Y-axis direction of the support 6. The other end portion (free end) in the Y-axis direction on the 93 side is coupled to a part of the rope 91.

  That is, the endless rope 91 is wound around the rotary drum 92 and the pulley 94 so that the moving direction of the rope 91 is changed using the pulley 93 as a fulcrum. In this embodiment, the rope 91 is a single endless string that is wound around the rotary drum 92 and the pulley 94, but apparently there are two ropes between the rotary drum 92 and the pulley 94. The rope is hung. Hereinafter, for convenience of explanation, one rope 91 to which the free end of the first curtain 5 is coupled is referred to as a first rope 911, and the other rope 91 is referred to as a second rope 912.

  Therefore, when the rotating drum 92 rotates in the direction of the arrow A (solid line) in FIG. 18, the first rope 911 is drawn into the rotating drum 92 and the second rope 912 is pulled out from the rotating drum 92. On the other hand, when the rotating drum 92 rotates in the direction of arrow B (dotted line) in FIG. 18, the first rope 911 is pulled out from the rotating drum 92, and the second rope 912 is pulled into the rotating drum 92. That is, the rope 91 (the first rope 911 and the second rope 912) is operated in a slidable manner by the rotating drum 92. The pulley 93 is a double pulley having two pulleys that rotate independently of each other. The first rope 911 is hung around one pulley, and the second rope 912 is hung around the other pulley. Turned.

  The free end of the first curtain 5 is coupled to the first rope 911. By rotating the rotary drum 92, the free end of the first curtain 5 is moved in the Y-axis direction so that the first curtain 5 5 can be opened and closed. When closing the first curtain 5, the rotating drum 92 is rotated in the direction of arrow A (solid line) in FIG. As a result, the first rope 911 is drawn into the rotating drum 92, the free end of the first curtain 5 is pulled toward the pulley 93, and the free end of the first curtain 5 moves away from the fixed end. The first curtain 5 is closed. On the other hand, when the first curtain 5 is opened, the rotary drum 92 is rotated in the direction of arrow B (dotted line) in FIG. As a result, the first rope 911 is drawn from the rotating drum 92 (the second rope 912 is drawn into the rotating drum 92). Then, the free end of the first curtain 5 is moved toward the pulley 94 side, and the free end of the first curtain 5 moves toward the fixed end, so that the first curtain 5 is opened. In the present embodiment, the fixed end of the first curtain 5 is provided on the pulley 94 side and the free end is provided on the rotating drum 92 (pulley 93) side, but the fixed end of the first curtain 5 is provided on the rotating drum 92. A configuration in which the pulley 94 is provided with a free end on the (pulley 93) side may be employed.

  Further, the opening / closing device 9 of the present embodiment includes an elastic member 95 as a frictional force applying means for applying a frictional force between the rotating drum 92 and the rope 91 in order to prevent the rotating drum 92 from spinning around. The elastic member 95 is composed of a coil spring and is fixed between the beam 33 and the pulley 94. The elastic member 95 applies a frictional force between the rotary drum 92 and the rope 91 by pulling the pulley 94 to the beam 33 side by the restoring force of the coil spring and applying tension to the rope 91. The elastic member 95 increases the frictional force between the rotary drum 92 and the rope 91, and the rotary drum 92 can be pulled in and out without winding the rope 91 a plurality of times. Since it is not necessary to wind the rope 91 around the rotating drum 92 a plurality of times, it is not necessary to consider the fleet angle, and the entire length of the rotating drum 92 and the rope 91 can be shortened. Moreover, since the opening / closing device 9 is provided in the vicinity of the roof 23, the effective use area of the farm field in the house body 2 is expanded.

  In the present embodiment, the elastic member 95 is used as a frictional force applying unit that applies a frictional force between the rotary drum 92 and the rope 91, but other members than the elastic member 95 may be used. For example, a rotating drum 92 or a rope 91 having a large friction coefficient may be used as the frictional force applying means.

  The first curtain 5 has core members 51 and 52 (see FIG. 2B) that connect at least both ends in the X-axis direction at each end portion in the Y-axis direction. Is opened and closed by moving in the Y-axis direction along the support portion 6. Therefore, the opening / closing device 9 has two combinations of the rope 91, the rotary drum 92, the pulleys 93 and 94, and the elastic member 95, and both ends of the core member 51 provided at the free end of the first curtain 5. Each pair of ropes 91 is coupled to the section. That is, the opening / closing device 9 rotates both rotary drums 92 and moves both ropes 91 at the same time, so that both ends of the core material 51 provided at the free end of the first curtain 5 are in the X-axis direction. It can be moved at the same time.

  Further, as shown in FIG. 19, the opening / closing device 9 of the present embodiment includes a shaft 96, a motor 97, and an opening / closing detection unit 98. In order to simultaneously open and close the first curtain 5 over the entire region in the X-axis direction, the rotating drums 92 are connected to each other by a shaft 96 so that the two sets of rotating drums 92 rotate simultaneously. Since both the rotating drums 92 are similarly rotated by the shaft 96 and both the ropes 91 are moved at the same time, variation in the opening degree of the first curtain 5 in the X-axis direction can be suppressed. Further, the motor 97 rotates the shaft 96 with the generated driving force, whereby the two rotating drums 92 rotate and the first curtain 5 opens and closes.

  The open / close detection unit 98 is provided between one rotary drum 92 and the motor 97, and detects the fully open / closed state of the first curtain 5 based on the rotation amount of the motor 97 (rotary drum 92). To do. The open / close detection unit 98 is fixed to a plate-shaped fixing plate 9811 attached to the beam 33 and is housed in a rectangular box-shaped case 9812. 20 and 21 show a state where the case 9812 is removed. The configuration of the open / close detection unit 98 will be described with reference to FIGS.

  The open / close detection unit 98 includes a bottom plate 982, a pair of side plates 983, a shaft 984, a guide 985, a moving block 986, a pair of switch fixing portions 987, and a pair of micro switches 988.

  The bottom plate 982 is formed in a rectangular plate shape, and is fixed to the fixed plate 9811 using a screw or the like (not shown). The pair of side plates 983 are attached to the side surfaces of the fixed plate 9811 so as to face each other in the X-axis direction. Of the pair of side plates 983, the side plate 983 attached to the motor 97 side is called a side plate 9831, and the side plate 983 attached to the rotating drum 92 side is called a side plate 9832.

  The shaft 984 is formed in a round bar shape, and is provided on the pair of side plates 983 so as to pass through the pair of side plates 983 and be rotatable. The rotating shaft of the motor 97 is connected to one end of the shaft 984 protruding from the side plate 9831, and the end of the shaft 96 is connected to the other end of the shaft 984 protruding from the side plate 9832. That is, the shaft 984 connects the rotating shaft of the motor 97 and the shaft 96 provided with the rotating drum 92 in the X-axis direction, and the shaft 984 and the shaft 96 are similarly linked to the rotating shaft of the motor 97. Rotate. Further, a thread groove is formed in the body portion of the shaft 984 between the pair of side plates 983. The guide 985 is formed in a round bar shape and is provided between the pair of side plates 983.

  The moving block 986 includes a main body portion 9861, a first insertion hole 9862, a second insertion hole 9863, and a plate spring 9864. The main body portion 9861 is formed in a rectangular shape. The first insertion hole 9862 is formed in the main body portion 9861 and the shaft 984 is inserted therethrough. Further, a thread groove is formed on the inner surface of the first insertion hole 9862, and the thread groove and the thread groove formed on the body portion of the shaft 984 are screwed together. The guide 985 is inserted through the second insertion hole 9863. Note that the diameter of the second insertion hole 9863 is slightly larger than the diameter of the guide 985, and the main body portion 9861 is configured to be movable along the guide 985. One end of the leaf spring 9864 is fixed to the main body portion 9861 so as to protrude from the main body portion 9861. The moving block 986 moves along the guide 985 according to the rotation direction of the shaft 984, and the movement amount is determined by the rotation amount of the shaft 984.

  The pair of switch fixing portions 987 are provided on one end side and the other end side on the bottom plate 982, and the microswitch 988 is fixed to the upper portion. Of the pair of switch fixing portions 987, the switch fixing portion 987 provided on the motor 97 side is referred to as a switch fixing portion 9871, and the switch fixing portion 987 provided on the rotating drum 92 side is referred to as a switch fixing portion 9872.

  A micro switch 988 is fixed to the upper part of each switch fixing portion 987, and a leaf spring 9864 of a moving block 986 that moves along the guide 985 comes into contact therewith. Each microswitch 988 is connected to a control circuit (not shown) for controlling the motor 97. When the leaf spring 9864 comes into contact with each microswitch 988, a detection signal is output to the control circuit. Note that the micro switch 988 fixed to the switch fixing portion 9871 is referred to as a micro switch 9881, and the micro switch 988 fixed to the switch fixing portion 9872 is referred to as a micro switch 9882.

  When the shaft 984 is rotated by the motor 97 in the direction of arrow A (solid line) in FIG. 20, the moving block 986 moves in a direction approaching the side plate 9831 by a moving amount corresponding to the rotating amount of the shaft 984. Further, the rotating drum 92 also rotates in the direction of arrow A (solid line) in FIG. 18, and the free end of the first curtain 5 moves in a direction away from the fixed end by an amount corresponding to the amount of rotation of the rotating drum 92. The first curtain 5 is closed. On the other hand, when the shaft 984 is rotated in the direction of arrow B (dotted line) in FIG. 20 by the motor 97, the moving block 986 moves in a direction approaching the side plate 9832 by the amount of movement corresponding to the amount of rotation of the shaft 984. Further, the rotating drum 92 also rotates in the direction of arrow B (dotted line) in FIG. 18 and moves in a direction in which the free end of the first curtain 5 approaches the fixed end by an amount corresponding to the amount of rotation of the rotating drum 92. The first curtain 5 is opened. Since the rotation amount of the shaft 984 and the rotary drum 92 is the same, the movement amount of the free end of the first curtain 5 and the movement amount of the movement block 986 are in a proportional relationship.

  Therefore, in the present embodiment, the position of the moving block 986 is set to a position where the leaf spring 9864 contacts the micro switch 9881 when the first curtain 5 is in the fully closed state. Further, the position of the moving block 986 is set to a position where the leaf spring 9864 contacts the micro switch 9882 when the first curtain 5 is fully opened. In FIG. 21, the position of the moving block 986 when the first curtain 5 is in the fully closed state is indicated by a solid line, and the position of the moving block 986 when the first curtain 5 is in the fully open state is indicated by a broken line. . Further, the arrow in FIG. 21 indicates the moving direction of the moving block 986.

  With the above configuration, when the free end of the first curtain 5 moves and the first curtain 5 is fully closed, the leaf spring 9864 of the moving block 986 contacts the micro switch 9881. Then, a detection signal indicating the fully closed state of the first curtain 5 is output from the micro switch 9881 to the control circuit. On the other hand, when the free end of the first curtain 5 moves and the first curtain 5 is fully opened, the leaf spring 9864 of the moving block 986 contacts the micro switch 9882. Then, a detection signal indicating the fully opened state of the first curtain 5 is output from the micro switch 9882 to the control circuit 99. The control circuit 99 stops the motor 97 when a detection signal is output from the micro switch 9881 or the micro switch 9882. Thereby, the overrun of the 1st curtain 5 can be prevented.

  As described above, the open / close detection unit 98 of the present embodiment detects the position of the free end of the first curtain 5 based on the rotation amount of the motor 97 (the rotating drum 92), and fully opens and fully opens the first curtain 5. A closed state can be detected. Therefore, it is not necessary to provide a detection switch at each of the position of the free end when the first curtain 5 is fully opened and the position of the free end when the first curtain 5 is fully closed. The fully open state and the fully closed state of the first curtain 5 can be detected. In addition, since the open / close detection unit 98 is provided in the vicinity of the motor 97, the electrical system can be integrated into one place and the electrical wiring can be shortened, so that the workability and reliability are improved, the construction cost, Material costs can also be reduced.

  Further, the position of the switch fixing portion 9872 with respect to the bottom plate 982 is configured to be adjustable, and the leaf spring 9864 is adjusted so as to come into contact with the micro switch 988 when the first curtain 5 is in a fully open / fully closed state. Can do.

  In the above configuration, the control circuit 99 is configured to stop the motor 97 when detection signals are output from the micro switches 9881 and 9882. However, the control circuit 99 may be omitted. For example, the motor 97 has a first input terminal, a second input terminal, and a common terminal, connects a first power line derived from the drive power supply to the first input terminal, and connects the second power terminal to the first power terminal. 2 is connected to the input terminal, and the common power line is connected to the common terminal. When rotating the motor 97 in the direction of arrow A (solid line) in FIG. 20, power is supplied to the motor 97 using the first power line and the common power line, and the motor 97 is directed in the direction of arrow B (dotted line) in FIG. When rotating, electric power is supplied to the motor 97 using the second power line and the common power line. The micro switch 9881 is configured as a b-contact type switch and is inserted into the first power line. When the leaf spring 9864 comes into contact, the first power line is opened to cut off the power supplied to the motor 97. Stop. Further, the micro switch 9882 is configured as a b-contact type switch and is inserted into the second power line. When the leaf spring 9864 comes into contact, the second power line is opened to cut off the power supplied to the motor 97, and the motor 97 Stop.

  In this way, when the leaf spring 9864 contacts the micro switches 9881 and 9882, the micro switches 9881 and 9882 are configured to directly cut off the power supplied to the motor 97, thereby eliminating the need for the control circuit 99 and the configuration. Simplified.

  The configuration of the opening / closing detection unit 98 is not limited to the above, and schematic views of the opening / closing detection unit 4 which is a modification of the opening / closing detection unit 98 are shown in FIGS. The open / close detection unit 4 of this modification detects the open / close state of the first curtain 5 based on the amount of movement of the rope 91. The open / close detection unit 4 is provided between the pulley 93 and the pulley 94 in the vicinity of the pulley 93 and includes a close detection switch 41 and an open detection switch 42. In addition, the first contact member 43 is attached integrally with the first rope 911 of the rope 91 to which the free end of the first curtain 5 is coupled, and the first rope 912 is integrated with the other second rope 912. Two contact members 44 are attached. The 1st contact member 43 and the 2nd contact member 44 are structures attached so that it may protrude from the surrounding surface of the rope 91, and are formed in the cylindrical shape in this embodiment.

  A specific configuration of the open / close detection unit 4 will be described with reference to FIGS. 23 and 24A and 24B.

  The open / close detection unit 4 includes a close detection switch 41, an open detection switch 42, a first contact member 43, and a second contact member 44. The close detection switch 41 is a push button type switch, and detects the closed state of the first curtain 5 by inverting the contact. The open detection switch 42 is a push button type switch, and detects the open state of the first curtain 5 by inverting the contact. The close detection switch 41 and the open detection switch 42 are attached to the distal end portion of a base 40 made of a bent metal plate, and the base 40 is fixed to a beam 33 constituting the end wall 24.

  The close detection switch 41 includes a main body 411 that stores contacts and is fixed to the base 40, and a first operation unit 412 provided on the main body 411. The first operation unit 412 includes a first push button 413 that protrudes from the main body 411 and reverses the contact point, and a first lever 414 that operates the first push button 413. The first lever 414 has a lower end fixed to the main body 411 as a fulcrum, and a force is applied in a direction in which the upper end approaches the main body 411 so that the first push button 413 is pressed, and the lever main body 415 is moved upward. The elastic member 416 is provided so as to extend in the direction. The elastic member 416 is configured by a coil spring, has elasticity in a direction (depth direction) along the moving direction of the rope 91, and is configured to be able to contact the first contact member 43.

  The first contact member 43 is composed of an elastic member (for example, rubber) having elasticity in a direction (depth direction) along the moving direction of the rope 91, and at a position where the first curtain 5 is in a closed state. The contact is reversed by contacting the first operation portion 412 of the closing detection switch 41. Specifically, when the first contact member 43 comes into contact with the elastic member 416 and the elastic member 416 is largely bent, the lever body 415 pushes the first push button 413 and the contact is reversed. Thereby, the close detection switch 41 detects the closed state of the first curtain 5. When the close detection switch 41 detects the closed state of the first curtain 5, the close detection switch 41 outputs a detection signal to a control circuit 99 (see FIG. 19) that controls the operation of the motor 97. When the detection signal is output from the close detection switch 41, the control circuit 99 stops the rotation of the motor 97 and stops the closing operation of the first curtain 5. Thereby, the overrun of the 1st curtain 5 can be prevented.

  Next, the open detection switch 42 has the same configuration as the close detection switch 41, and includes a main body 421 that accommodates contacts and is fixed to the base 40, and a second operation unit 422 provided in the main body 421. The second operation unit 422 includes a second push button 423 that protrudes from the main body 421 and reverses the contact point, and a second lever 424 that operates the second push button 423. The second lever 424 has a lower end fixed to the main body 421 as a fulcrum, and a force is applied in a direction in which the upper end approaches the main body 421 so that the second push button 423 is pressed and the lever main body 425 is moved upward. An elastic member 426 is provided to extend in the direction. The elastic member 426 is configured by a coil spring, has elasticity in a direction (depth direction) along the moving direction of the rope 91, and is configured to be able to contact the second contact member 44.

  The second contact member 44 is configured by an elastic member (for example, rubber) having elasticity in a direction (depth direction) along the moving direction of the rope 91, and at a position where the first curtain 5 is in an open state. The contact is reversed by contacting the second operation portion 422 of the open detection switch 42. Specifically, when the second contact member 44 contacts the elastic member 426 and the elastic member 426 is greatly bent, the lever main body 425 pushes the second push button 423 and the contact is reversed. Thereby, the open detection switch 42 detects the open state of the first curtain 5. When the open detection switch 42 detects the open state of the first curtain 5, the open detection switch 42 outputs a detection signal to the control circuit 99 (see FIG. 19) that controls the operation of the motor 97. When a detection signal is output from the open detection switch 42, the control circuit 99 stops the rotation of the motor 97 and stops the opening operation of the first curtain 5. Thereby, the overrun of the 1st curtain 5 can be prevented.

  Also in this modification, it is not necessary to provide a detection switch at each of the positions of the free ends when the first curtain is fully opened and fully closed, and using the single open / close detection unit 4, the first curtain is closed. An open state can be detected. In addition, since the open / close detection unit 4 is provided in the vicinity of the motor 97, the electrical system can be integrated into one place and the electrical wiring can be shortened, so that the workability and reliability are improved, the construction cost, Material costs can also be reduced.

  Further, the first operation unit 412 of the close detection switch 41 and the second operation unit 422 of the open detection switch 42 have elasticity, and at the moment when they contact the first and second contact members 43 and 44. Rather, the contact points are reversed when the elastic members 416 and 426 are bent. Accordingly, the first and second contact members 43 and 44 are separated from the first and second operation portions 412 and 422 due to repulsion (bounce back) when the opening and closing operation of the first curtain 5 is stopped, and the contact is Chattering that re-inverts (the detection state is released) can be prevented. Furthermore, since the first and second contact members 43 and 44 also have elasticity in the depth direction, chattering can be further prevented. The first and second contact members 43 and 44 are formed in a relatively long shape with respect to the depth direction so that the first and second operation portions 412 and 422 can be greatly bent. Thereby, the 1st, 2nd contact members 43 and 44 can prevent chattering, and can reverse a contact more reliably.

  Furthermore, in order to prevent rebound due to repulsion when the first and second contact members 43 and 44 come into contact with the elastic members 416 and 426, first and second rebound prevention members 45 and 46 may be provided. (See FIG. 24 (a)). The first rebound preventing member 45 is made of a magnet, and is provided at a portion of the first contact member 43 that contacts the elastic member 416. The elastic member 416 is configured by a metal coil spring. Therefore, the first rebound prevention member 45 is connected to the first contact member 43 and the close detection switch until a predetermined force is applied in a direction away from the close detection switch 41 (elastic member 416). The contact state with 41 can be maintained. The second rebound preventing member 46 is made of a magnet and is provided at a portion of the second contact member 44 that comes into contact with the elastic member 426. The elastic member 426 is configured by a metal coil spring. Therefore, the second rebound prevention member 46 and the second contact member 44 and the open detection switch until the second contact member 44 is applied with a predetermined force or more in a direction away from the open detection switch 42 (elastic member 426). The contact state with 42 can be maintained. In this way, by using the first and second rebound preventing members 45 and 46, rebound caused by repulsion when the first and second contact members 43 and 44 come into contact with the elastic members 416 and 426 is prevented. And chattering can be prevented. In the case where the elastic members 416 and 426 are made of a nonmagnetic material, the elastic members 416 and 426 can be prevented from being rebounded by providing magnets or metal members. In addition, as a modified example of the first and second rebound preventing members 45 and 46, it may be constituted by hook-and-loop fasteners provided on the first and second contact members 43 and 44 and the elastic members 416 and 426.

  Further, the control circuit 99 (see FIG. 19) outputs detection signals from the close detection switch 41 and the open detection switch 42, and after the rotation of the motor 97 (rotary drum 92) is stopped, an instruction to reversely rotate the rotary drum 92 is given. The rotary drum 92 is configured to stop rotating until input. Thereby, even when chattering occurs in which the detection state of the close detection switch 41 and the open detection switch 42 is released when the opening / closing operation of the first curtain 5 is stopped, the first curtain 5 The opening / closing operation stop can be maintained.

  Similarly to the open / close detection unit 98 described above, the control circuit 99 is omitted, and the power supplied to the motor 97 when the close detection switch 41 detects the closed state or when the open detection switch 42 detects the open state. You may comprise so that it may interrupt | block directly. This eliminates the need for the control circuit 99 and simplifies the configuration.

  Moreover, since the 1st, 2nd contact members 43 and 44 are formed in the cylindrical shape, interference with another structural member can be prevented.

  The motor 97 is configured to stop when an overload state occurs. When a failure or disconnection of the open / close detection unit 4 occurs, the motor 97 is overloaded and stopped by the first and second contact members 43 and 44 passing through the elastic members 416 and 426 and being stopped by the pulley 93. . Thereby, damage to components, such as pulley 93, can be prevented. Moreover, since the 1st, 2nd contact members 43 and 44 have elasticity, they can reduce the impact at the time of contacting with the pulley 93, and can prevent a failure | damage.

  Further, as shown in FIG. 23, a pulley 93 is also fixed to the base 40 together with the close detection switch 41 and the open detection switch 42. As a result, the close detection switch 41 and the open detection switch 42 are fixed at fixed positions with respect to the pulley 93, so the distance between the rope 91 and the elastic members 416, 426 is constant, and the detection accuracy of the open / closed state is improved. be able to.

  In this embodiment, the opening / closing detection unit 4 is provided in the vicinity of the pulley 93, but a configuration in which the opening / closing detection unit 4 is provided in the vicinity of the pulley 94 (folding portion) may be used.

  The open / close detection unit 4 of the above modification is provided between the pulley 93 and the pulley 94 in the vicinity of the pulley 93, but is provided between the pulley 93 and the rotating drum 92 as shown in FIG. It may be a configured.

(Embodiment 2)
The agricultural house 1 according to this embodiment is different from the opening / closing apparatus 9 provided in the agricultural house 1 according to the first embodiment in the configuration of the opening / closing device 90 for opening and closing the first curtain 5. The opening / closing apparatus 90 of this embodiment is demonstrated using FIG. In addition, about the structure similar to Embodiment 1, a common code | symbol is attached | subjected and description is abbreviate | omitted suitably.

  The opening / closing device 90 (second opening / closing device) of this embodiment includes a rope 910 (second string), a rotating drum 920 (second rotating drum) that winds the rope 910, a first pulley 930, A second pulley 940 and a return pulley 950 are provided. As for the rope 910, the free end of the 1st curtain 5 is couple | bonded with the rope 91 (refer FIG. 18) of Embodiment 1 partially. Note that a wire or the like may be used instead of the rope 910. A rope 910 is looped around the first pulley 930 between the rotary drum 920 and the free end of the first curtain 5, and a rope 910 is routed between the rotary drum 920 and the first pulley 930 on the second pulley 940. Is multiplied.

  The first pulley 930 and the turntable pulley 950 are fixed pulleys fixed to both ends of the house body 2 in the Y-axis direction, and are arranged along the roof 23 of the house body 2, that is, near the roof 23. The rotating drum 920 is disposed along the roof 23 of the house body 2. Here, the rotary drum 920 is disposed in the vicinity of the first pulley 930 at a position between the first pulley 930 and the folding pulley 950 in the Y-axis direction. Further, the first pulley 930 and the turntable pulley 950 are arranged at substantially the same height, and the rotating drum 920 is arranged at a position slightly lower than the first pulley 930 and the turnup pulley 950.

  The second pulley 940 is disposed below the rotary drum 920 and the first pulley 930. Here, the second pulley 940 is a fixed pulley fixed at a fixed position in the vicinity of the ground (the ground surface), and is disposed directly below the rotary drum 920.

  In this embodiment, the rope 910 is a single string body whose both ends are held by the rotary drum 920. However, since the loop 950 is folded back with the folding pulley 950 as a folding point, the rope 910 is apparently two from the rotating drum 920. The rope is pulled out. Hereinafter, for convenience of explanation, one rope 910 spanned between the rotary drum 920 and the free end of the first curtain 5 is referred to as a first rope 9110, and the other rope 910 is referred to as a second rope 9120. That is, two ropes 910, a first rope 9110 and a second rope 9120, are drawn from the rotating drum 920. The first rope 9110 and the second rope 9120 are connected at their tips (one end on the opposite side to the rotating drum 920).

  Here, the tip of the second rope 9120 is folded back by a turntable pulley 950 and connected to the first rope 9110. Therefore, the free end of the first curtain 5 moves in a direction away from the return pulley 950 when the first rope 9110 is wound, and moves in a direction closer to the return pulley 950 when the second rope 9120 is wound up. To do.

  The first rope 9110 and the second rope 9120 are both hung around the first pulley 930 between the rotary drum 920 and the free end of the first curtain 5, and further, A second pulley 940 is wound around the pulley 930. In other words, both the first rope 9110 and the second rope 9120 are temporarily folded back by the second pulley 940 after the portion pulled out from the rotary drum 920, and then the first curtain 5 through the first pulley 930. Connected to the free end of The first pulley 930 and the second pulley 940 are each a double pulley having two pulleys that rotate independently.

  The rotating drum 920 is equally divided into two sections in the rotation axis direction, and one section is used for winding the first rope 9110 and the other section is used for winding the second rope 9120. However, the winding direction of the first rope 9110 and the second rope 9120 is opposite to each other. When the rotary drum 920 rotates in the direction of arrow A (solid line) in FIG. 26, the first rope 9110 is wound up, and when the rotary drum 920 rotates in the direction of arrow B (dotted line), the second rope 9120 is wound up. The tips of the first rope 9110 and the second rope 9120 are connected to each other. Accordingly, when the first rope 9110 is wound up, the second rope 9120 is pulled out from the rotating drum 920, and when the second rope 9120 is wound up, the first rope 9110 is pulled out from the rotating drum 920. .

  Accordingly, the opening / closing device 90 can move the free end of the first curtain 5 in the Y-axis direction by rotating the rotary drum 920 and moving the rope 910. When closing the first curtain 5, the opening / closing device 90 rotates the rotary drum 920 in the direction of arrow A (solid line) in FIG. 26, and the first rope 9110 moves the free end of the first curtain 5 to the first. Pull to the pulley 930 side. Thereby, the free end of the first curtain 5 moves in a direction away from the fixed end, and the first curtain 5 is closed. On the other hand, when opening and closing the first curtain 5, the opening / closing device 90 rotates the rotating drum 920 in the direction of arrow B (dotted line) in FIG. 26, and the second rope 9120 moves the free end of the first curtain 5. Return to the pulley 950 side. Thereby, the free end of the 1st curtain 5 moves to the direction which approaches a fixed end, and a 1st curtain is opened.

  According to the agricultural house 1 having the above-described configuration, the rotary drum 920 and the first pulley 930 are provided by the rotary drum 920 disposed near the roof 23 and the second pulley 940 disposed below the first pulley 930. The rope 910 is folded between the two. Therefore, the agricultural house 1 uses the space below the rotating drum 920 and the first pulley 930 from the rotating drum 920 to the second even if there is no space above the rotating drum 920 and the first pulley 930. A distance to the pulley 940 can be earned. That is, the agricultural house 1 can ensure a relatively large distance from the rotary drum 920 to the second pulley 940 by effectively using the space inside the house body 2 without increasing the height of the house body 2. By increasing the distance to the second pulley 940, the rotating drum 920 has a smaller fleet angle and can wind the rope 910 neatly.

  Furthermore, in this embodiment, as shown in FIG. 26, a fence 960 is provided below the rotary drum 920 and the first pulley 930 so as to surround the second pulley 940 and the rope 910. The pulley 940 is fixed to the fence 960. The fence 960 has a rectangular tube shape in which a cross section perpendicular to the Y-axis direction is a substantially square shape, and the second pulley 940 is fixed to a lower end portion on the inside thereof. Thus, the fence 960 surrounds the rope 910 between the rotary drum 920 and the second pulley 940 and the rope 910 between the first pulley 930 and the second pulley 940.

  The fence 960 is provided below the rotary drum 920 and the first pulley 930 in order to prevent the rope 910 from being caught, and each surface thereof is made of a translucent member such as polycarbonate. It may be configured by a net or the like.

  By providing such a fence 960, the agricultural house 1 can prevent the rope 910 from being caught while the second pulley 940 is provided below the rotary drum 920 and the first pulley 930. . And since the 2nd pulley 940 is being fixed to the fence 960, it is not necessary to install the member for fixing the 2nd pulley 940 newly. Furthermore, the second pulley 940 can also adjust the tension applied to the rope 910 by adjusting the fixing position to the fence 960 in the Z-axis direction.

  The other configuration of the opening / closing device 90 is the same as that of the opening / closing device 9 of the first embodiment. Can do.

DESCRIPTION OF SYMBOLS 1 House for agriculture 2 House main body 5 1st curtain 6 Support part 8 2nd curtain 13 Side curtain (3rd curtain)
23 Roof 33 Beam

Claims (22)

A house body in which a pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls extend in the depth direction;
A first curtain that is provided along the roof inside the house body, is supported by a support portion that extends in the depth direction, and opens and closes along the depth direction;
An agricultural house, comprising: an upper end overlapping with a lower end of the first curtain; and a lower end of the second curtain positioned below the lower end of the first curtain. The agricultural use according to claim 1, further comprising: a third curtain provided on the pair of side walls, the upper end overlapping the lower end of the second curtain, and the lower end moving along the vertical direction. House. The agricultural house according to claim 2, wherein a lower end portion of the second curtain and an upper end portion of the third curtain are formed continuously and integrally. A plurality of end support portions provided along both end portions in the width direction of the roof;
A suspension member that is movable in the depth direction along the end support portion and configured to suspend an end portion in the width direction of the first curtain is further provided. The agricultural house of any one of thru | or 3. The end support portion is composed of a linear member,
The agricultural house according to claim 4, wherein the suspension member has a pulley that is movable in the depth direction on the end support portion. The end support portion is configured by a curtain rail,
The agricultural house according to claim 4, wherein the suspension member has a runner that is movable in the depth direction along the curtain rail. A first opening / closing device for opening and closing the first curtain;
The first opening / closing device includes:
An endless first string for moving the first curtain in the depth direction;
A first rotating drum disposed on one end side in the depth direction and around which the first string body is wound;
A folded portion that is disposed on the other end side in the depth direction, and on which the first string body is wound,
Frictional force applying means for applying a frictional force between the first rotating drum and the first string body,
The first rotating drum and the folded portion are disposed along the roof;
The first curtain has one end in the depth direction fixed, and the other end in the depth direction is coupled to the first string body,
The agricultural house according to any one of claims 1 to 6, wherein the other end of the first curtain moves in the depth direction according to a rotation direction of the first rotating drum. . The agricultural house according to claim 7, wherein the frictional force applying means is configured by an elastic member that pulls the folded portion so as to apply tension to the first string body. A close detection switch for detecting a closed state of the first curtain;
An open detection switch for detecting an open state of the first curtain;
A first contact member that is provided integrally with the first string body and that contacts the first operating portion of the close detection switch at a position where the first curtain is in a closed state;
A second contact member that is provided integrally with the first string body and that contacts the second operation portion of the open detection switch at a position where the first curtain is in an open state to reverse the contact; The agricultural house according to claim 7 or 8, wherein the agricultural house is provided. The agricultural house according to claim 9, wherein the first contact member and the second contact member have elasticity in a direction along a moving direction of the first string body. The first operation portion of the closing detection switch has elasticity in a direction along a moving direction of the first string body,
The agricultural house according to claim 9 or 10, wherein the second operation portion of the open detection switch has elasticity in a direction along a moving direction of the first string body. The first operation portion of the closing detection switch is configured to be able to contact a first push button that reverses a contact and the first contact member, and a direction along a moving direction of the first string body And a first lever for operating the first push button.
The second operation portion of the open detection switch is configured to be able to contact the second push button that reverses the contact and the second contact member, and the direction along the moving direction of the first string body The agricultural house according to any one of claims 9 to 11, further comprising: a second lever that has elasticity and operates the second push button. When the close detection switch detects the closed state of the first curtain, or when the open detection switch detects the open state of the first curtain, the rotation of the first rotating drum is stopped to A control circuit for stopping the opening and closing operation of the first curtain;
The control circuit continues to stop the rotation of the first rotating drum until an instruction to reversely rotate the first rotating drum is input after the rotation of the first rotating drum is stopped. Item 13. The agricultural house according to any one of Items 9 to 12. A first rebound prevention member that maintains a contact state between the first contact member and the close detection switch until a force of a predetermined level or more is applied in a direction in which the first contact member is separated from the close detection switch;
A second rebound preventing member that maintains a contact state between the second contact member and the open detection switch until a force of a predetermined level or more is applied in a direction away from the open detection switch. The agricultural house according to any one of claims 9 to 13, wherein the agricultural house is provided. The agricultural house according to claim 14, wherein the first bounce prevention member and the second bounce prevention member are formed of magnets. The first opening / closing device includes:
A pulley arranged above or below the first rotating drum, on which the first string body is hung, and for changing the moving direction of the first string body;
The agricultural house according to any one of claims 9 to 15, wherein the close detection switch and the open detection switch are provided between the pulley and the folded portion. The agricultural house according to claim 16, wherein the close detection switch and the open detection switch are fixed to a fixed position with respect to the pulley or the turn-back portion. A second opening / closing device for opening and closing the first curtain;
The second opening / closing device includes:
A second rotating drum that moves the free end in the depth direction by winding a second string coupled to a free end that is one end in the depth direction of the first curtain;
A first pulley on which the second string member is hung between the second rotating drum and the free end;
A second pulley on which the second string member is wound between the second rotating drum and the first pulley;
The second rotating drum and the first pulley are disposed along the roof;
The agricultural house according to any one of claims 1 to 6, wherein the second pulley is disposed below the second rotating drum and the first pulley. Below the second rotating drum and the first pulley, a fence is provided so as to surround the second pulley and the second string body,
The agricultural house according to claim 18, wherein the second pulley is fixed to the fence. A pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls are provided along the roof inside the house body extended in the depth direction, and supported by the support portion extended in the depth direction. An opening and closing device for opening and closing a curtain that opens and closes along the depth direction,
An endless first string that moves the curtain in the depth direction;
A first rotating drum disposed on one end side in the depth direction and around which the first string body is wound;
A folded portion that is disposed on the other end side in the depth direction, and on which the first string body is wound,
Frictional force applying means for applying a frictional force between the first rotating drum and the first string body,
The first rotating drum and the folded portion are disposed along the roof;
The curtain has one end in the depth direction fixed, the other end in the depth direction is coupled to the first string body,
The opening / closing apparatus, wherein the first string body is pulled out from the first rotating drum in accordance with the rotating direction of the first rotating drum, and the other end of the curtain moves in the depth direction. The switchgear according to claim 20, wherein the frictional force applying means is configured by an elastic member that pulls the folded portion so as to apply tension to the first string body. A pair of side walls facing each other and a roof connecting the upper ends of the pair of side walls are provided along the roof inside the house body extended in the depth direction, and supported by the support portion extended in the depth direction. An opening and closing device for opening and closing a curtain that opens and closes along the depth direction,
A second rotating drum that moves the free end in the depth direction by winding a second string coupled to a free end that is one end in the depth direction of the curtain;
A first pulley on which the second string member is hung between the second rotating drum and the free end;
A second pulley on which the second string member is wound between the second rotating drum and the first pulley;
The second rotating drum and the first pulley are disposed along the roof;
The said 2nd pulley is arrange | positioned under the said 2nd rotating drum and the said 1st pulley. The opening / closing apparatus characterized by the above-mentioned.

Images