JP4791790B2 - Lifting defrosting fan device that can be automatically restored or folded - Google Patents

Description

  The present invention has an obstacle to the use of tea garden management devices in view of the widespread use of tea garden management devices such as tea mowers and control machines (land and air control machines) from the viewpoint of mechanization and labor saving in tea gardens. The present invention relates to an elevating type (low position type) defrosting fan device capable of automatic folding (returning and folding to a predetermined angle) without any folds.

  As is well known, tea garden management devices are being adopted in view of mechanization and labor saving. In connection with this, the harmful effect of the defrost fan apparatus mainly using the existing building pillar and overhead wire is pointed out. In other words, a pillar is erected in a farm such as a tea plantation or tea tree, and the overhead line, etc. stretched toward the building pillar becomes an obstacle when the tea garden management device is moved or operated, and plucking, pruning, and pest control One example is that such operations cannot be performed efficiently. In addition, it is partly regarded as a problem that the building pillar and the anti-frost fan device on the building pillar are harmful on the landscape.

  In view of such a situation, the present applicant has proposed, for example, several low temperature type frost-proof fan devices for tea gardens as part of solving these problems. An example of this can be summarized as follows: A pillar (post) can be raised and lowered freely on the support part buried in the tea garden, and the frost-proof fan is raised on the tea tree in the standing state of the pillar to prevent frost. In the contracted state, the frost-proof fan is laid down and the frost-proof fan is accommodated in the tea plant. However, in order to house the frost-proof fan in the tea tree with this up and down freestanding pillar, it is necessary to house the frost-proof fan guard in a state lower than the height of the tea tree. As a means for that, a configuration in which the building pillar of the frost-proof fan is stood up in a pit recessed in the ground, or a configuration in which the frost-proof fan is folded (declined) without a pit is conceivable. The configuration in which the pits are recessed and accommodated has problems such as time-consuming work and the fact that the motor for driving the frost-proof fan is immersed in rainwater accumulated in the pits. Further, the configuration in which the frost-proof fan is folded and accommodated has problems such as the motor being immersed in rainwater collected on the ground when the folding direction is on the motor side for driving the frost-proof fan.

  References (1) and (2) can be cited as solutions for such problems, and an outline thereof will be described.

  First, document (1) is a “frost-proof fan” disclosed in JP-A-10-113076. The outline is that a foldable support portion is provided at the tip of the telescopic pole, and the connecting member fixed to the blower body is supported on the support portion so as to be able to swing and elevate, and the arm portion of the support portion A neck folding mechanism is provided with the connecting member. When the fan is accommodated, the pole is reduced, and the orientation of the blower main body is changed so that the front surface of the fan faces directly downward by folding the support portion, so that the entire frost-proof fan is accommodated in the teacup. Therefore, it can be accommodated in a position that does not interfere with the operation of the tea garden management device, or the neck folding mechanism and the elevation adjustment mechanism are combined to ensure easy operation and / or simplification of the configuration and low cost. There is a feature that it can be realized. However, this document (1) employs a configuration in which a long strip connecting member is provided, and this connecting member supports a frost-proof fan in a depression state. Therefore, it is conceivable to leave problems in securing strength and stability. Document (1) shows that the folding of the anti-frost fan is performed manually and / or using a tool for loosening / tightening the stopper, and in some cases, requires a lot of work and / or time. There is.

  Reference (2) is a “plant blower for plant protection” of JP-A-10-323130. The outline is a plant protection blower equipped with a blower above the upper support, the lower support is embedded in the soil, and the upper support is accommodated in the lower support so as to be slidable in the vertical direction with a screw rod. This blower is attached so that the upper column can be tilted, and the front of the blower can be accommodated substantially horizontally on the ground. Therefore, it does not interfere with the automatic tea-cutting machine at the time of tea-cutting, and the blower is attached to the support arm so that it can be tilted up and down, so that the configuration can be simplified, the cost can be reduced, etc. There are features. However, in this document (2), the folding of the anti-frost fan is performed manually and / or using a tool for loosening / tightening the stopper, and in some cases, labor and / or labor are required. There is.

  Based on the above-mentioned prior art in the market and / or the references (1) and (2), the applicant has submitted several configurations for further improvement in FY2005. The present invention is proposed with the intention of further improving the flow based on this flow and having the advantage as an actual machine.

JP-A-10-113076 JP-A-10-323130

  In view of the above, according to the present invention, the telescopic building column is composed of a plurality of building columns, and the rising and lowering wires are respectively locked to the plurality of building columns. Employs a configuration in which wires are stretched so as to confront each other by using a plurality of pulleys, for example, a situation in which smooth expansion and contraction due to bending, expansion and other obstacles occurring in a plurality of building pillars, or any It is intended to eliminate the adverse effects in an emergency such as a situation where the building column suddenly contracts (falls), equipment failure, human damage, etc. caused by these. In addition, it is intended that the frost-proof fan can be folded and raised (returned) reliably and automatically, so that the folding can be automatically performed at a predetermined angle. In almost all fields, stand up safely at any time, such as in difficult conditions or at any time, such as under bad conditions such as the climate, and this folding / standing up is performed automatically and preferably with one touch. I intend to. Furthermore, by sharing parts with the defrosting fan of other mechanisms, the manufacturing can be simplified, the efficiency and / or the cost can be reduced, and the manufacturing and / or assembly work can be facilitated and speeded up. It is intended to plan.

The invention of claim 1 is intended to provide an elevating and defrosting fan device that can be automatically restored or automatically folded to achieve the above-mentioned intention.

In the first aspect, the telescopic building pillar is composed of at least first to third building pillars, and the rising and lowering wires are respectively locked to the first building pillar, The lowering wire is stretched so as to confront each other using a plurality of pulleys, and when the raising wire is wound, the lowering wire is rewound to raise the first and second building columns. In addition, at the time of rewinding the ascending wire, it is configured to wind up the descending wire and descend the first and second building pillars,
An angle adjustment base is provided on the first building column, and an angle adjustment body is movably provided on the angle adjustment base via a pivot, and a base is fixed to the angle adjustment body, and the angle adjustment base and the base A spring is provided in the space to be formed, a swing base and a fan support are provided on the mount, and a defrosting fan is provided on the fan support.
When the first and second building columns are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. In addition, when the first and second building pillars are lowered, the lifting / lowering defrosting fan that can automatically fold or automatically fold can be folded automatically by pressing the spring with the weight of the defrosting fan. Device.

The invention of claim 2 is intended to provide an elevating and defrosting fan device that is optimal for achieving the above-described intention and that can be put into practical use , or can be automatically folded .

According to the second aspect, the telescopic building pillar is composed of at least first to third building pillars, and the ascending / descending wires are respectively locked to the first building pillar, The wire is connected to the winder via at least a first pulley provided at the upper end of the second building pillar and a second pulley provided at the lower end of the second building pillar, and the lowering wire is provided at least A structure connected to the winder via a fourth pulley provided at the lower end of the third building pillar,
The ascending / descending wires are locked in opposite directions on the winder, and when the ascending wire is wound, the descending wire is rewound to raise the first and second building columns. In addition, at the time of rewinding the ascending wire, it is configured to wind up the descending wire and descend the first and second building pillars ,
An angle adjustment base is provided on the first building column, and an angle adjustment body is movably provided on the angle adjustment base via a pivot, and a base is fixed to the angle adjustment body, and the angle adjustment base and the base A spring is provided in the space to be formed, a swing base and a fan support are provided on the mount, and a defrosting fan is provided on the fan support.
When the first and second building columns are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. In addition, when the first and second building pillars are lowered, the lifting / lowering defrosting fan that can automatically fold or automatically fold can be folded automatically by pressing the spring with the weight of the defrosting fan. Device.

  The invention of claim 3 is intended to achieve the object of claim 1 and to provide a pulley mechanism that is optimal for achieving this object and that can be practically used.

Claim 3 is an elevating and defrosting fan apparatus capable of automatic return or automatic folding according to claim 2,
The first pulley is viewed from the front in the center of the upper end of the second building pillar, the second pulley is viewed from the front and outside the lower end of the second building pillar, and the fourth pulley is further installed. automatic return where the structure provided each biased to the lower end of the third Kenbashira and front view, or automatic folding can frost fan equipment of elevating.

  The invention of claim 4 is intended to achieve the object of claim 2 and to provide a winding drum that is optimal for achieving this object and can be used practically.

Claim 4 is an elevating and defrosting fan apparatus capable of automatic return or automatic folding according to claim 2,
It is an elevating and defrosting fan device capable of automatic return or automatic folding, wherein the ascending wire and the descending wire are distinguished and fitted to the winding drum of the winder.

The invention according to claim 1 is configured such that the telescopic building pillar is composed of at least first to third building pillars, and the rising and lowering wires are respectively locked to the first building pillar, The lowering wire is stretched so as to confront each other using a plurality of pulleys, and when the raising wire is wound, the lowering wire is rewound to raise the first and second building columns, and At the time of rewinding the ascending wire, it is configured to wind the descending wire and descend the first and second building pillars,
The first building column is provided with an angle adjustment base, and the angle adjustment body is movably provided on the angle adjustment base via a pivot. The mount is fixed to the angle adjustment body, and the space formed by the angle adjustment base and the stand Provided with a spring, a swing base and a fan support on the gantry, and a frost-proof fan on the fan support.
When the first and second building pillars are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. When the second building pillar descends, the frost-proof fan device can be automatically restored or automatically folded with a structure in which the spring is pressed and automatically folded by the weight of the frost-proof fan.

  Therefore, according to the first aspect of the present invention, the telescopic building column is composed of a plurality of building columns, and the ascending / descending wires are respectively locked to the plurality of building columns. For example, in a situation where a smooth expansion or contraction due to bending, expansion or other obstacles occurring in a plurality of building pillars cannot be achieved. There are features such as a situation in which the column suddenly contracts (falls), a failure of the device caused by these, a human damage, etc., and the effects in an emergency can be solved. Further, since the frost-proof fan can be folded and raised (returned) automatically, there is an actual benefit that the folding and the like can be automatically and reliably performed. And this folding / standing can be performed safely in almost all fields, such as in bad conditions such as the climate, at any time, such as difficult situations of work or always, Preferably, there is a feature that can be done with one touch. Furthermore, by sharing parts with the defrosting fan of other mechanisms, manufacturing can be simplified, efficiency and / or cost can be reduced, and manufacturing and / or assembly work can be facilitated and speeded up. There is a feature that can be achieved.

In the invention of claim 2, the telescopic building column is constituted by at least the first to third building columns, the rising and lowering wires are respectively locked to the first building column, A wire is connected to the winder via a first pulley provided at least at the upper end of the second building pillar and a second pulley provided at the lower end of the second building pillar, and at least a wire for lowering is provided. A structure connected to the winder through a fourth pulley provided at the lower end of the three pillars,
The up and down wires are locked in opposite directions on the winder, and when the up wire is taken up, the down wire is rewound to raise the first and second building pillars and up When the wire for rewinding is wound, the wire for lowering is wound and the first and second building pillars are lowered ,
The first building column is provided with an angle adjustment base, and the angle adjustment body is movably provided on the angle adjustment base via a pivot. The mount is fixed to the angle adjustment body, and the space formed by the angle adjustment base and the stand Provided with a spring, a swing base and a fan support on the gantry, and a frost-proof fan on the fan support.
When the first and second building pillars are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. When the second building pillar descends, the frost-proof fan device can be automatically restored or automatically folded with a structure in which the spring is pressed and automatically folded by the weight of the frost-proof fan.

  Therefore, according to the second aspect, the telescopic building columns are constituted by the first to third building columns, and the rising and lowering wires are respectively locked to the first to third building columns. Adopting a structure that stretches the wire for lowering and the wire for lowering so as to confront each other using the first, second, and fourth pulleys, for example, bending generated in the first to third building pillars, An emergency situation such as a situation where a smooth expansion or contraction due to an obstacle such as expansion cannot be achieved, or a situation where one of the building columns suddenly contracts (falls), or a device failure or human damage is caused by these. There is a feature such as being able to eliminate the harmful effects of. Others conform to the effect of the first aspect.

The invention of claim 3 is an elevating and defrosting fan device capable of automatic return or automatic folding according to claim 2,
The first pulley is viewed from the front in the center of the upper end of the second building pillar, the second pulley is viewed from the front and outside the lower end of the second building pillar, and the fourth pulley is further viewed from the front. It is an elevating and defrosting fan device that can be automatically restored or automatically folded so as to be provided at the lower end of the third building pillar.

Claim 3 is characterized in that , if the object of claim 1 can be achieved, a pulley mechanism that is optimal for achieving this object and that can be practically used can be provided.

Invention of Claim 4 is the raising / lowering defrosting fan apparatus which can be automatically returned or automatically folded of Claim 2,
This is an elevating and defrosting fan device that can be automatically restored or automatically folded with a configuration in which a wire for ascending and a wire for descending are separately mounted on a winding drum of a winder.

Therefore, the fourth aspect is characterized in that the object of the second aspect can be achieved, and that a winding drum that is optimal for achieving the object and can be practically used can be provided.

An example of the present invention will be described.
Referring to the drawings, FIG. 1 is an overall front view of an elevating frost-proof fan device that can be automatically restored or folded , FIG. 2 is a rear view of FIG. 1, and FIG. Expanded cross-sectional view showing the relationship between the wire and the first to third pulleys / building pillars, FIG. 4-1 shows the minimum pull-out and / or return length (hereinafter referred to as a required length) of the descent wire. (For convenience of explanation, the same shall apply hereinafter.) In addition, the required length of the lifting wire is in the maximum state, and the first and second building pillars are accommodated in the third building pillar, and the frost prevention FIG. 4B is a schematic diagram showing a state in which the fan is folded under its own weight. FIG. 4B shows that the required length of the lowering wire is about 1/2 and the required length of the raising wire is about 1/2. In this state, the second building column is extended and the first building column is in the middle position accommodated in the second building column. Fig. 4-3 is a schematic diagram showing the folded state that suppresses the reaction force of the ring. Fig. 4-3 shows that the required length of the descending wire is the maximum and the required length of the ascending wire is the minimum The process showed that the first building pillar and the second building pillar were extended and the frost-proof fan returned from the folded state by the reaction force of the spring and the operation of the frost-proof fan. Schematic view, FIG. 5 is a front view of the main part at the time of standing up (returning) of another type of automatic defrosting fan system that can be automatically restored or folded , and FIG. 6 is a partially omitted rear view of the main part of FIG. FIGS. 7A and 7B illustrate the embodiment of FIG. 5. For example, the required length of the lowering wire is the minimum and the required length of the lifting wire is the maximum. FIG. 7-2 is a schematic diagram showing a state where the second building pillar is accommodated in the third building pillar and the frost-proof fan is folded by its own weight, and FIG. For example, the required length of the descending wire is approximately ½, and the necessary length of the ascending wire is approximately ½, and the second building column extends, FIG. 7-3 is a schematic diagram showing a folded state in which the first building pillar is an intermediate position accommodated in the second building pillar and the reaction force of the spring is suppressed by the weight of the defrost fan. FIG. 5 is an embodiment of FIG. 5, for example, in a state where the required length of the lowering wire is the maximum and the required length of the ascending wire is the minimum. It is the schematic diagram which showed the process from which the building pillar extended | stretched and the frost-proof fan returned to the state returned from the state folded by the reaction force of the spring and operation | movement of the frost-proof fan.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 4-3, 1 is a telescopic building pillar, and in this example is a nested structure divided into three (an example). Explaining an example, the first building column 100, the second building column 101, and the third building column 102 having small, medium, and large diameters are included (the number is an example). Between the first building pillar 100, the second building pillar 101, and the third building pillar 102, gaps A and B are appropriately formed. As shown in FIG. 3, the first building pillar 100 to the third building pillar 102 are made of square bar, constitute square gaps A and B, and a first pulley described later in the gap B, It is set as the structure which installed the 2nd pulley and installed the 4th pulley mentioned later in the clearance gap C formed with the 3rd building pillar 102, the 1st building pillar 100, and the 2nd building pillar 101. FIG. In this configuration, it is easy to install and effective use of the gaps B and C, or to facilitate the installation and / or movement of the ascending / descending wires described later, and to prevent these rubbing and / or noise. It can be useful. However, this configuration is a desirable example, and can be a building column (not shown, and other examples are the same) made of a round shape (pipe), H-shaped steel or the like, and is not limited.

  The first building column 100 is provided with an angle adjustment base 2 (angle adjustment is synonymous with depression adjustment), and the angle adjustment body 4 can be moved to the angle adjustment base 2 via the pivot 3. Provide. This movement is performed using the pivot 3 as a fulcrum and using an adjustment stopper 5 provided in the angle adjustment base 2 and an arc-shaped long hole 7 provided in the angle adjustment body 4. Will be described later. A base 8 is fixed to the angle adjusting body 4, and a spring 11 is provided in a space 10 formed by the angle adjusting body 4 and the base 8. The mount 8 incorporates necessary devices such as a swing mechanism for the field and a motor. The gantry 8 is provided with a swing base 13 and a fan support 14, and the fan support 14 is supported with respect to the gantry 8 at an angle of about 30 degrees. This angle can be adjusted by the depression angle adjusting means 15. In the figure, reference numeral 20 denotes a defrosting fan. The defrosting fan 20 includes a motor 21 and a fan 22 rotated by the motor 21 as main components. Although not shown, the fan 22 may be provided with a guard. In this example, the frost-proof fan device M mainly includes the angle adjustment base 2, the angle adjustment body 4, the gantry 8, the swing base 13, the fan support body 14, the depression angle adjustment means 15, and the frost-proof fan 20. It is a component.

  The starting end of the raising wire 25 and the starting end of the descending wire 26 are respectively locked to the lower end 100a of the first building pillar 100 described above. And this wire 25 for raising goes through the 1st pulley 28 provided in the upper end 101b of the 2nd building pillar 101, and the 2nd pulley 29 provided in the lower end 101a of the 2nd building pillar 101, for example, Then, the third building pillar 102 and / or the third pulley 31 provided in the winder 30 is used as a guide to reach the drum 3000 of the winder 30. On the other hand, the lowering wire 26 has a fourth pulley 33 provided at the lower end 102a of the third building pillar 102, and a fifth pulley 34 provided in the third building pillar 102 and / or the winder 30, for example. To the drum 3000 of the winder 30 as a guide. That is, the ascending wire 25 and the descending wire 26 are in a facing relationship, and when one is pulled out, the other is rewound. The building pillar 102) is held in tension by the ascending wire 25 and the descending wire 26, and the building pillar 1 is forcibly extended and / or contracted. Therefore, even when any of the building pillars 1 is bent, expanded, or otherwise cannot move up and down (extend and / or contract), at least the ascending wire 25 and the descending wire 26 are not damaged. As long as that movement is guaranteed. The drum 3000 has a winding method in which the ascending wire 25 and the descending wire 26 are individually wound and opposed to each other.

  Next, the first building pillar 100 and the second building pillar 101 shown in FIGS. 4-1 to 4-3 are moved up and down, and the raising wire 25 and the lowering wire 26 are drawn and / or unwound. Etc. will be explained.

  “FIG. 4A” is a state where the second building column 101 and the first building column 100 are housed in the third building column 102 in a nested manner, and the so-called building column 1 is contracted. It has become. In this state, the ascending wire 25 and the descending wire 26 are as follows, and will be described separately.

  The rising wire 25 locked to the lower end 100 a of the first building pillar 100 is connected to the lower end of the second building pillar 101 from the first pulley 28 provided on the upper end 101 b of the second building pillar 101. It reaches the third pulley 31 provided at the upper end 102b of the third building pillar 102 via the second pulley 29 provided at 101a. The ascending wire 25 is locked to the lower end 100a of the first building pillar 100, and then reaches the first pulley 28 provided at the upper end 101b of the second building pillar 101, and further to the second pulley. The length reaching the third pulley 31 via the second pulley 29 provided at the lower end 101a of the building pillar 101 and having the maximum length (described as the maximum, middle, or minimum of the wire 25) It has become.

  The lowering wire 26 locked to the lower end 100a of the first building pillar 100 passes through the fourth pulley 33 provided at the lower end 102a of the third building pillar 102, and passes through the third building pillar. It reaches the fifth pulley 34 provided at the upper end 102b of 102. The lowering wire 26 is locked to the lower end 100a of the first building pillar 100, and then passes through the fourth pulley 33 provided at the lower end 102a of the third building pillar 102, and the fifth The length reaching the pulley 34 is the minimum length.

  In this state, the spring 11 is pressed by the weight of the defrost fan device M, the entire defrost fan device M is folded, and the adjustment stopper 5 is at the end of the long hole 7. The angle adjustment body 4 is in a posture in which it falls in the direction of the field. In order to ensure this state, the weight of the defrosting fan device M and the reaction force of the spring 11 are adjusted. Of course, this adjustment can be used for multiple purposes and automatic folding is also possible.

  “FIG. 4-2” shows that the first building pillar 100 and the second building pillar 101 in the third building pillar 102 are simultaneously expanded (the above-described ascending wire 25 and descending wire of the present invention described above). 26 and / or in relation to the first pulley 28 to the fifth pulley 34 (the same applies hereinafter). In other words, from the state of FIG. 4A, substantially the entire first building pillar 100 and the second building pillar 101 are in a state of coming out. In this state, the ascending wire 25 and the descending wire 26 are as follows, and will be described separately.

  The rising wire 25 locked to the lower end 100a of the first building pillar 100 is a second building pillar that has been lifted together from the first pulley 28 provided at the upper end 101b of the second building pillar 101. The third pulley 31 provided at the upper end 102b of the third building pillar 102 is reached via the second pulley 29 provided at the lower end 101a of the 101. The ascending wire 25 passes from the lower end of the raised first building pillar 100 to the lower end of the second building pillar 101 via the first pulley 28 provided at the upper end of the second building pillar 101. The length from the provided second pulley 29 to the third pulley 31, which is substantially the same as the elevated lengths of the first building pillar 100 and the second building pillar 101 from the state of FIG. 4-1. The length is shortened, and the ascending wire 25 has an intermediate length.

  The lowering wire 26 locked to the lower end 100a of the first building pillar 100 passes through the fourth pulley 33 provided at the lower end 102a of the third building pillar 102, and passes through the third building pillar. It reaches the fifth pulley 34 provided at the upper end 102b of 102. The lowering wire 26 has a length from the lower end 100a of the raised first building pillar 100 to the fifth pulley 34 from the fourth pulley 33 provided at the lower end 102a of the third building pillar 102. Then, from the state shown in FIG. 4A, the length of the first building pillar 100 and the second building pillar 101 is increased by substantially the same length, and the lowering wire 26 has an intermediate length. ing.

  : In the process of ascending the first and second building pillars 100 and 101, the spring 11 is pressed by the weight of the defrost fan device M, and the entire defrost fan device M is folded. This is substantially the same state as in FIG. And it is safe because this state is secured even in a normal wind. Moreover, since this safety is ensured, it is considered useful for smooth raising and lowering of the first building pillar 100 and the second building pillar 101.

  In "FIG. 4-3", the first building pillar 100 and the second building pillar 101 in the third building pillar 102 are extended. That is, from the state of FIG. 4B, the first building pillar 100 is extended and is substantially entirely out of the second building pillar 101. In this state, the ascending wire 25 and the descending wire 26 are as follows, and will be described separately.

  : The rising wire 25 locked to the lower end of the first building column 100 is connected to the lower end 101a of the second building column 101 from the first pulley 28 provided on the upper end 101b of the second building column 101. The third pulley 31 provided at the upper end 102b of the third building pillar 102 is reached via the second pulley 29 provided at the top. The ascending wire 25 passes through the first pulley 28 provided on the upper end 101a of the second building pillar 101 from the lower end 101a of the raised second building pillar 101, and the second building pillar already raised. 101. The length from the second pulley 29 provided at the lower end of 101 to the third pulley 31 is shorter from the state shown in FIG. Thus, the ascending wire 25 has a minimum length.

  The lowering wire 26 locked to the lower end 100a of the first building pillar 100 passes through the fourth pulley 30 provided at the lower end 102a of the third building pillar 102 and passes through the third building pillar. It reaches the fifth pulley 34 provided at the upper end 102b of 102. The lowering wire 26 has a length from the lower end 100a of the raised first building pillar 100 to the fifth pulley 34 from the fourth pulley 33 provided at the lower end 102a of the third building pillar 102. Thus, from the state shown in FIG. 4B, the wire 26 for lowering extends to the maximum length by extending substantially the same length as the raised length of the first building pillar 100.

  In addition, after the first and second building pillars 100 and 101 are moved up, the fan 22 is operated (driven), so that the defrost fan device M fan 22 is affected by the wind pressure and the reaction force of the spring 11. The defrost fan device M is in a state of maintaining a predetermined angle, and the adjustment stopper 5 is positioned at the start end of the long hole 7. Others are based on the above example. In this example, the angle adjustment base 2 and the angle adjustment body 4 can be secured by automatic clamping.

  Next, another preferred embodiment of the present invention will be described with reference to FIGS. In the other embodiments, the basic structure is the same as that of the above-described embodiment, and the difference will be mainly described. That is, the secondary building column 103 is pivotally attached to the first building column 100 via the hinge 40. Desirably, a base plate 104 is provided on the first building column 100, and a support plate 105 is provided on the base plate 104 via a hinge 40. The sub-building pillar 103 is pivotally attached to the support plate 105. By providing the base plate 104, intrusion of rainwater into the first building pillar 100 and intrusion of dust, birds, and the like are avoided. In addition, by superimposing the base plate 104 and the support plate 105, it effectively acts for stable installation of the defrosting fan device M, prevention of shake during operation, and the like. Note that a spring 41 is mounted on the shaft 4000 of the hinge 40, and a configuration in which a tension spring 41a is provided if necessary. The pair of springs 41 and 41a can exhibit the same function as the above-described example, or contribute to the reduction of elastic fatigue of the springs 41 and 41a. The sub-building pillar 104 is provided with a base tube 42, a gantry 8, a swing base 13, a depression angle adjusting means 15, a fan support 14, and / or a defrosting fan 20. The table 13 and the like conform to the above example. The operations of FIGS. 7-1 to 7-3 are based on the above-described example. In this example, by utilizing the length of the sub-building pillar 104, the overall length of the building pillar 1 may be shortened, and the length of the sub-building pillar 104 is set to the building pillar 1. By adding this, it is conceivable that a configuration capable of installing the anti-frost fan device M at a high position is useful and useful, such as adaptability to the installation location of the farm field. Moreover, the structure which accommodates the spring 41a in the space of the base board 104 and the support body 105 is employ | adopted, and the easy accommodation of this spring 41a and damage are avoided. In this example, the base plate 104 and the support body 105 can be fixed with an automatic clamp.

  In addition to the manual operation described above, folding of the fan device M is automated by using a mechanical structure such as a gas spring, a link, or a cylinder, other driving means, or a physical means such as a correction plate. It is possible to do. Further, the defrosting effect and the like of the defrost fan device M are the same as those of the conventional example.

FIG. 1 is an overall front view of a lift-type frost-proof fan device that can automatically return or fold . 2 is a rear view of FIG. FIG. 3 is an enlarged cross-sectional view showing the relationship between the winder, the wire for raising and lowering, and the first to third pulleys and building pillars. Fig. 4-1 shows that the pull-out and / or return length of the lowering wire (hereinafter referred to as the required length) is the minimum (for convenience of explanation, the same applies hereinafter), and the required length of the lifting wire is the maximum. Schematic diagram showing the state where the first and second building pillars are housed in the third building pillar and the frost-proof fan is folded under its own weight. Fig. 4-2 shows a state where the required length of the lowering wire is approximately ½ and the required length of the ascending wire is approximately ½. Moreover, the schematic diagram which showed the folded state which is the middle position where the 1st building pillar was accommodated in the 2nd building pillar, and is pressing down the reaction force of a spring with the dead weight of a defrost fan Fig. 4-3 shows a state in which the required length of the lowering wire is the maximum and the required length of the rising wire is the minimum, and the first pillar and the second building pillar are extended. , Schematic diagram showing the process of the frost-proof fan returning from the folded state due to the reaction force of the spring and the operation of the frost-proof fan FIG. 5 is a front view of a main part at the time of standing up (returning) of another defrosting fan device that can be automatically restored or automatically folded . FIG. 6 is a rear view of the main part of FIG. FIG. 7A is an example of FIG. 5. For example, the required length of the lowering wire is minimum and the required length of the rising wire is maximum. Schematic diagram showing a state where the building pillar is housed in the third building pillar and the frost-proof fan is folded under its own weight. FIG. 7-2 is an example of FIG. 5. For example, the required length of the lowering wire is approximately ½, and the required length of the raising wire is approximately ½. The second building pillar is extended, and the first building pillar is an intermediate position accommodated in the second building pillar, and the folding that holds the spring reaction force under the weight of the frost-proof fan Schematic showing the state FIG. 7-3 is an embodiment of FIG. 5, for example, in a state where the required length of the lowering wire is the maximum and the required length of the rising wire is the minimum. Schematic diagram showing the process when the pillar and the second building pillar are extended and the frost-proof fan returns from the folded state due to the reaction force of the spring and the operation of the frost-proof fan.

DESCRIPTION OF SYMBOLS 1 Construction pillar 100 First construction pillar 100a Lower end 100b Upper end 101 Second construction pillar 101a Lower end 101b Upper end 102 Third construction pillar 102a Lower end 102b Upper end 103 Secondary construction pillar 104 Base plate 105 Support plate 2 Angle adjustment base 3 Pivot 4 Angle adjustment body 5 Adjustment stop 7 Long hole 8 Base 10 Space 11 Spring 13 Swing base 14 Fan support 15 Angle adjustment means 20 Anti-frost fan 21 Motor 22 Fan 25 Lifting wire 26 Lowering wire 28 First pulley 29 Second pulley 30 Winder 3000 Drum 31 Third pulley 33 Fourth pulley 34 Fifth pulley 40 Hinge 4000 Shaft 41 Spring 41a Spring 42 Base tube A Clearance B Clearance C Clearance M Clearance Fan device

Claims (4)

The telescopic building pillar is composed of at least first to third building pillars, and the rising and lowering wires are respectively locked to the first building pillar, and the raising wire and the lowering wire are connected to each other. A plurality of pulleys are used to face each other, and when the raising wire is wound, the lowering wire is rewound to raise the first and second building pillars, and At the time of rewinding the wire, it is configured to wind up the lowering wire and lower the first and second building pillars,
An angle adjustment base is provided on the first building column, and an angle adjustment body is movably provided on the angle adjustment base via a pivot, and a base is fixed to the angle adjustment body, and the angle adjustment base and the base A spring is provided in the space to be formed, a swing base and a fan support are provided on the mount, and a defrosting fan is provided on the fan support.
When the first and second building columns are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. In addition, when the first and second building pillars are lowered, the lifting / lowering defrosting fan that can automatically fold or automatically fold can be folded automatically by pressing the spring with the weight of the defrosting fan. apparatus. The telescopic building column is composed of at least first to third building columns, and the rising and lowering wires are respectively locked to the first building column, and the rising wires are at least second. A first pulley provided at the upper end of the building pillar and a second pulley provided at the lower end of the second building pillar, which are connected to the winder, and the lowering wire is connected to at least the third building pillar. And connected to the winder through a fourth pulley provided at the lower end of the
The ascending / descending wires are locked in opposite directions on the winder, and when the ascending wire is wound, the descending wire is rewound to raise the first and second building columns. In addition, at the time of rewinding the ascending wire, it is configured to wind up the descending wire and descend the first and second building pillars,
Said angle adjustment base is provided on the first Kenbashira, provided the angle adjusting member to movably via a pivot to the angle adjustment base, as well as Katatome the frame to the angle adjustment member, this angle adjustment base and pedestal A spring is provided in the space to be formed, a swing base and a fan support are provided on the mount, and a defrosting fan is provided on the fan support.
When the first and second building columns are raised, the defrost fan automatically returns to a predetermined angle through the operation of the defrost fan, the wind pressure against the defrost fan, and the reaction force of the spring. In addition, when the first and second building pillars are lowered, the lifting / lowering defrosting fan that can automatically fold or automatically fold can be folded automatically by pressing the spring with the weight of the defrosting fan. apparatus. An elevating and defrosting fan device capable of automatic return or automatic folding according to claim 2,
The first pulley is viewed from the front in the center of the upper end of the second building pillar, the second pulley is viewed from the front and outside the lower end of the second building pillar, and the fourth pulley is further installed. An elevating and defrosting fan device that can be automatically restored or automatically folded in a configuration that is biased to the lower end of the third building pillar when viewed from the front. An elevating and defrosting fan device capable of automatic return or automatic folding according to claim 2,
An elevating and defrosting fan device capable of automatically returning or automatically folding the ascending wire and the descending wire on a winding drum of a winder.

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