JP5943377B2 - Shutter mechanism with insect intrusion prevention function - Google Patents

Description

The present invention provides a shutter mechanism provided at an opening which is an entrance of a closed section surrounded by a partition wall,
In particular, the present invention relates to a shutter mechanism with an insect intrusion prevention function that is installed at the entrance of a closed space such as a building in a factory or the like in a manufacturing site for foods and pharmaceuticals, which is required to prevent contamination of insect foreign matters and the like.

The following techniques are known as techniques for preventing insects and other insects from entering a building or the like from the entrance. No. 1 is provided with a shutter part and an air curtain device that has a suction port and an air outlet and forms a horizontal air curtain flow opposite to each other, in order to wipe off insects attached to the shutter part when the shutter is closed Then, the jet flow from the outlet is blown onto the shutter surface, and then the outlet is swung horizontally to form a parallel air curtain flow that faces each other in the horizontal direction to open the shutter and close the shutter at the end of work Sometimes, the outlet is moved to the initial position (Patent Document 1).
The second is provided with a partition such as a shielding sheet at the entrance and exit, and an air blowing device above the partition, and before the partition is opened, the insect intrusion prevention air is blown onto the partition, so that the outer surface of the partition and the periphery of the partition are stopped. After removing the insects, an air curtain is formed outside the partition, and then the partition is opened (Patent Document 2).
No. 3 is that a passage space is formed at the entrance to the indoor space, an air outlet is provided in one of the upper and lower portions of the left and right side walls of the passage space, and an air suction port is provided in the other upper and lower portions. The invasion of insects and the like is prevented by shielding the space with an air curtain flowing across the space (Patent Document 3).
In addition, although it does not use a shielding sheet or an air curtain, as another technique for eliminating insects, a light emitter having an insect attracting ability and a blower for forming an air flow from the indoor side toward the outdoor side And flying insects around the light emitter are excluded to the outside by the operation of the blower (Patent Documents 4, 5, and 6).

JP 2003-161489 A JP 2003-214678 A JP 2006-57928 A JP-A-10-227503 JP-A-11-281109 JP-A-11-289948

However, in Part 1 and Part 2 of the prior art, intrusion of insects or the like when opening the shielding sheet can be prevented when a person or an object enters or exits, but it is difficult to prevent entry of insects or the like when the shielding sheet is closed. It is. In general, opening and closing equipment using a shielding member is not limited to a sheet shutter, and there is always a gap between the lower end of the shielding member, in particular between the left and right sides of the lower end of the shielding member, and the side of the opening. It is because it is easy to become an intrusion route. In addition, in such an opening / closing facility, the rail portion for opening / closing the shielding member and the shutter box for storing the shielding member after winding are also passing through the gap between the left and right sides of the lower end of the shielding member and the opening side surface. Cheap.
Further, in the third prior art, even if it is possible to prevent insects and the like from entering the indoor space from the entrance / exit while the air curtain is in operation, the invasion cannot be prevented when the air curtain is not operating. In order to prevent this, a shielding sheet is provided at the entrance and exit in advance, and when this is used when the air curtain is not in operation, the same problems as those 1 and 2 arise.
The above prior art that eliminates insects without using a shielding sheet or air curtain is intended to eliminate flying insects that enter the room, and the blower is of the order of a ventilation fan. It is impossible to prevent flying insects and walking insects from entering the building through the entrance.

The first object of the present invention is to provide a shutter mechanism with an insect intrusion prevention function that prevents the entry of insects and the like into the interior of buildings and the like, thereby preventing the entry of foreign substances such as insects in food and pharmaceutical manufacturing sites. It is to be.

The second object of the present invention is to prevent insects from entering with a simple structure by providing a blower outlet with an air supply line to increase the effect of preventing insects and the like from being introduced, and to supply pressurized air to the outlet. It is to provide a shutter mechanism with a function.

The third object of the present invention is to effectively utilize the air discharged from a device equipped with an attracting light source for capturing insects that sucks and captures insects from a suction port that opens indoors, and the air discharged from this device. It is to provide a shutter mechanism with an insect intrusion prevention function that can prevent the trapping of insects and the rolling up of dust and fungi on the inner floor surface of buildings and the like.

First, the basic configuration of the present invention will be described. The basic configuration is
An opening that is an entrance of a closed compartment surrounded by a partition;
Shutter means installed so that it can be deployed in the opening;
Air having a blowout port installed on at least one side of the peripheral portion of the opening or the edge of the shutter means in a deployed state, and configured to blow air outward from the blowout port to the closed section A shutter mechanism with an insect intrusion prevention function comprising a jetting means.

In this configuration , since the blowout port 15b for blowing air to the outside of the closed section is provided near the periphery of the shutter means 10 that shields the opening 1 of the closed section 3 so as to be freely opened and closed, the vicinity of the periphery of the shutter means 10 The air pressure of the air to the outside of the closed section 3 acts on this, and by this wind pressure, flying and walking insects trying to enter the inside of the building etc. through the gap between the shutter means 10 and the opening 1 are Inaccessible to the opening.

The first means has the basic configuration described above, and an attracting light source for attracting insects on the inner side of the closed section on the side of the opening , and a suction port installed in the vicinity of the attracting light source And a device having a capture filter for capturing insects sucked together with air from the suction port ,
The air to be discharged from the device, provided so as to supply to said air ejection means,
The attractant light source is characterized in that it is arranged so as not to leak light to the outside from the gap between the opening and the shutter.

  As shown in FIG. 19, this means supplies air discharged from the device 30 that sucks insects together with air and captures them with the capture filter 30 a to the air ejection means 14 that ejects air outward from the closed section 3. Therefore, the processing of the air discharged from the apparatus 30 does not become a problem.

The second means has the basic configuration, and the opening portion directly below the shielding sheet of the expanded state, along the lower side of the opening portion, the air supply lines are formed with the air outlet It is characterized by.

In this means, as shown in FIG. 2, the air outlet 15b is also formed in a portion other than both sides of the lower side of the opening 1, so that the effect of preventing the entry of insects and the like is greater.

The third means has the first means or the second means , and the shutter means is housed in the winding drum installed on the upper side of the opening and the winding drum, A shielding sheet provided so as to be able to be developed from the winding drum to the lower side of the opening, and the outlet is at least on the lower side of the opening or on both sides in the longitudinal direction of the lower edge of the shielding sheet. It is arranged.

  In this means, as shown in FIGS. 2, 9, 16, 18, and 23, the outlet 15b is disposed at least on both sides in the longitudinal direction of the lower side 1b of the opening 1 or the lower edge of the shielding sheet 12. Therefore, the wind pressure acts particularly on the portion where the gap g on both sides in the longitudinal direction between the shielding sheet 12 and the opening 1 is likely to be generated, so that insects can be effectively prevented from entering.

According to the invention relating to the first means or the second means, it has a blowout port installed on at least one side of the peripheral portion of the opening or the edge of the shutter means in the unfolded state. Insects approaching the shutter means from the outside, the gap generated between the shutter means and the opening due to the wind pressure of the air ejected from the outlet, It is impossible to enter the opening / closing rail part and the passage part of the shutter means winding drum, and therefore, contamination of products such as insect foreign matters at the manufacturing site of food and medicine is prevented.
According to the invention relating to the first means, the air discharged from the device that sucks insects together with the air and captures them with the capture filter is provided so as to be supplied to the air ejection means that ejects the air to the outside of the closed section. The air discharged from the device can be used effectively, and the air discharged from the device can be prevented from catching insects and prevent dust and fungi on the inner floor surface of buildings and the like from being rolled up.
According to the invention relating to the second means, the air supply line having the air outlet is formed along the lower side of the opening portion in the opening portion directly below the unfolded shielding sheet. It will also be formed in parts other than both sides of the lower part of the part, and therefore, the effect of preventing the entry of insects etc. is greater, and the air supply line is fixed to the opening, not the shielding sheet that moves up and down Therefore, it is easy to supply air to the air supply line, and thus the configuration can be simplified.
According to the third aspect of the invention, since the outlets are disposed on at least both sides in the longitudinal direction of the lower side of the opening or at least both sides in the longitudinal direction of the lower edge of the shielding sheet, in particular, there are internal and external passages for insects and the like. Air is ejected from both sides of the lower side of the opening that tends to occur or from both sides of the lower edge of the shielding sheet, and the effect of preventing insects and the like from entering the interior of the building or the like is great.

(A) is a schematic perspective view of an indoor side of a shutter mechanism with an insect intrusion prevention function according to the present invention, (b) is a schematic perspective view of an outdoor side of the shutter mechanism with an insect intrusion prevention function, FIG. 3C is a front view showing the arrangement state of the shielding sheet in the opening. It is a schematic diagram which shows the longitudinal cross section seen from the left-right direction of 1st Embodiment which has arrange | positioned the blowing outlet in the opening part lower side. FIG. 3 is an enlarged view of a main part of FIG. 2. FIG. 7 is a front view of FIG. 6. FIG. 3 is a view corresponding to FIG. 2 showing a closed state of the shielding sheet. It is a principal part enlarged view of FIG. It is the schematic sectional drawing which looked at the means to supply air to a protruding part (mall part) from the front. FIG. 5 is a view corresponding to FIG. 4 showing an example in which a number of outlets are provided. It is sectional drawing which shows the principal part of 2nd Embodiment. FIG. 10 is a front view of FIG. 9. FIG. 11 is a view corresponding to FIG. 10 illustrating an example in which a number of outlets are provided. It is a schematic diagram which shows a means to supply air to a hollow part. The same figure (a) is principal part sectional drawing of the other example of the means to supply air to a hollow part, The same figure (b) is the right view seen from the AA direction of the same figure (a). . FIG. 14 is an overall view of FIG. 13. It is principal part sectional drawing which shows the further another example of the means to supply air to a hollow part. It is sectional drawing which shows the principal part of 3rd Embodiment. FIG. 17 is a front view of FIG. 16. It is sectional drawing which shows the principal part of 4th Embodiment. It is a schematic sectional drawing which shows the principal part of 5th Embodiment. It is the conceptual diagram seen from the outdoors of 6th Embodiment. It is the conceptual diagram which looked at FIG. 20 from the indoor. It is the conceptual diagram which looked at FIG. 20 from diagonally outdoors. It shows the main part and is a schematic view seen from the indoor. It is a side view of the shielding sheet of FIG. It is a front view which shows the arrangement | positioning state of the shielding sheet in an opening part. It is sectional drawing which shows the engagement state of a shielding sheet and a guide rail.

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

  FIG. 1 schematically shows a shutter mechanism with an insect intrusion prevention function according to the present invention, which is composed of an opening 1, a shutter means 10, and an air ejection means 14. In the following, left and right refer to the direction viewed from the front in the outdoors (FIG. 1 (b)).

  The opening 1 forms an entrance / exit of a closed section 3 surrounded by a partition wall 2 (only the front side is shown in the drawing). A winding drum 11 described later is installed on the upper side 1a side, and the lower side 1b is Guide rails 1e are installed on the left and right sides 1c and 1d of the floor. The guide rail 1e is formed in a U-shaped cross section, and its upper end is connected to the lower surface of a shutter case 11a, which will be described later, and its lower end reaches the lower side 1b of the opening 1 as shown in FIG.

  As shown in FIG. 2, the shutter means 10 is housed in the winding drum 11 installed on the upper side 1a of the opening 1 and the winding drum 11 by winding, and the opening 1 by unwinding. It is comprised from the shielding sheet | seat 12 which can be expand | deployed to the inner lower side 1b side.

The winding drum 11 includes a shutter case 11a, which is horizontally mounted between the left and right sides 1c and 1d of the opening 1 and has a rectangular cross section and an insertion port P for the shielding sheet 12 formed on the lower surface, and a shutter case 11a. It is comprised from the winding shaft 11b to the left-right direction (longitudinal direction) laid horizontally so that rotation is possible, and the support rod 11c which slidably supports the shielding sheet 12 unwound from the winding shaft 11b. ing. The upper end of the above-described guide rail 1 e is connected to both the inside and outside of the insertion opening P of the shielding sheet 12.

The shielding sheet 12 constituting the shutter means 10 is wound around the winding shaft 11b so as to be unwound. The shielding sheet 12 is made of a flexible material, and the lower end thereof is folded back as shown in FIG. 2 to be formed in the hollow portion 12a. The bottom portion of the hollow portion 12a extends in the left-right direction (longitudinal direction). A long rod-shaped weight member 12b is fixed. The left and right ends of the rod-shaped weight member 12b protrude from the left and right ends of the hollow portion 12a and are slidably fitted to guide rails 1e installed on the left and right sides 1c and 1d of the opening 1. The weight member 12b enhances the adhesion of the lower end of the shielding sheet 12 to the floor surface. Therefore, a material capable of landing so as to follow the lower end of the shielding sheet 12 following the shape of the floor surface, for example, a chain member A plastic material such as gel or clay is more preferable. Thus, when a rod-shaped member is not used as the weight member 12b, there is no rod-shaped member that protrudes from the hollow portion 12a and engages with the guide rail 1e. The combined piece is projected and slidably fitted to the guide rail 1e. The material of the shielding sheet 12 is not limited to a flexible material, and a metal and relatively heavy material can be used.

  The above-mentioned air ejection means 14 which is one of the elements of the shutter mechanism with an insect intrusion prevention function according to the present invention is constituted by an air supply line 15 provided on the floor. That is, the air supply line 15 is provided with a flooring 16 on the lower side 1b of the opening 1, and the inner and outer central portions of the flooring 16 are bent upward to form a raised portion 15a (mould). The blowout port 15b as shown in FIG. 4 is formed at both left and right end portions of the inclined wall on the outdoor side of the raised portion 15a (mould portion).

  When the shielding sheet 12 is expanded downward when closed, the lower portion of the hollow portion 12a is landed so as to cover the raised portion 15a (mole portion) including the outlet 15b as shown in FIGS. It is difficult to become a route. On the other hand, there are gaps between the left and right sides of the shielding sheet 12 and the left and right sides 1c and 1d of the opening 1. In particular, the gap g between the left and right sides of the lower end of the shielding sheet 12 and the opening 1 is invaded by insects. Although it tends to be a route, air is blown outward from the blowout ports 15b provided at the left and right ends of the raised portion 15a (mould portion), so that the insect M cannot receive the wind pressure and approach the shielding sheet 12.

Since pressurized air is supplied into the raised portion 15a (mould portion), as shown in FIG. 7, the left and right ends thereof need to be airtightly closed. Are in airtight contact with the left and right sides 1c and 1d of the opening 1, and the left and right ends of the raised portion 15a (mould) are closed with a sealing material 15f. The supply of air into the raised portion 15a (mould portion) is performed by connecting an air supply pipe 15e to a pressurized supply source (not shown) installed in the partition wall 2 surrounding the opening 1, and connecting the raised portion 15a to the raised portion. It is carried out by penetrating one sealing material 15f of 15a (mould part) and inserting it into the raised part 15a (mould part). In addition, as a material of the flooring 16 that forms the raised portion 15a (mould portion), a metal having a load resistance, a hard synthetic resin, or the like is used.

  In the above description, the outlets 15b are provided at the left and right end portions of the raised portion 15a (mould portion). However, the present invention is not limited to this, and the left and right direction (longitudinal direction) of the raised portion 15a (mould portion) is not limited to this. (Direction) may be provided over the entire length. Note that the shape of the raised portion 15a (mould portion) is not limited to a curved shape, and may be a triangular shape as long as it protrudes upward. Also in this case, the lower portion of the hollow portion 12a of the shielding sheet 12 is deformed so as to follow the shape (triangular shape) of the lower portion of the hollow portion 12a of the shielding sheet 12 so as to follow the shape (triangular shape). Since the (mould part) is covered, there is almost no gap between the hollow part 12a and the raised part 15a (mould part). In this way, when the air blowing means 14 is constituted by an air supply line, the pressure supply source is only connected to one end or both ends of the raised portion 15a (mould portion) despite the provision of the outlet over the entire length in the longitudinal direction. Therefore, the configuration can be simplified.

  Next, the operation will be described. During operation of the production facility, as shown in FIGS. 1, 5 and 6, the shielding sheet 12 is expanded downward to keep the opening 1 closed, and pressurized air is applied to the raised portion 15a (mould portion). And air is constantly ejected from the outlet 15b. Then, even if there are gaps between the left and right sides of the lower end of the shielding sheet 12 and the opening 1 and between the lower end of the shielding sheet 12 and the raised portion 15a (mould portion), insects approaching the opening 1 from the outside The opening 1 cannot be approached due to the wind pressure of the air ejected from 15b. In addition, although the shielding sheet 12 is opened at the time of carrying in and out, invasion of insects can be prevented by providing a known air curtain device in the opening 1 at that time.

  9 to 15 show a second embodiment. In the first embodiment shown in FIG. 2 to FIG. 8, the blowout port 15 b that blows out air is provided in the raised portion 15 a (mole portion) of the flooring 16 on the lower side 1 b in the opening 1, but in this embodiment, the blowout port 15 b. Is different from the first embodiment in that it is provided on the shielding sheet 12 itself. That is, the lower end portion of the shielding sheet 12 is the hollow portion 12a and the weight member 12b is provided in the hollow portion 12a as in the first embodiment, but the lower end of the hollow portion 12a directly lands on a flat floor surface. Therefore, from the viewpoint of improving adhesion to the floor surface, the hollow portion 12a is vertically elongated with an elliptical cross section so that a linear load is applied to the lower end portion. In the first embodiment, since the shielding sheet 12 is landed on the raised portion 15a (mould portion), it is optional to make the shape of the hollow portion 12a before landing into an elliptical shape, but in this embodiment, it is as elliptical as possible from the above viewpoint. The shape is desired.

Further, in the present embodiment, the outlet 15b is a portion of the hollow portion 12a on the outdoor side, and is located as close as possible to the contact portion between the lower end of the hollow portion 12a and the floor surface (the lower side 1b of the opening 1), and the weight member 12b is provided at a position where air ejection is not hindered. Further, the outlet 15b may be provided only at the left and right ends of the hollow portion 12a as shown in FIG. 10, or may be provided over the entire length in the longitudinal direction (left and right direction) of the hollow portion 12a as shown in FIG.

  Pressurized air is supplied into the hollow portion 12a of the shielding sheet 12, and this is performed as follows. That is, as shown in FIG. 12, the air supply pipe 15e is connected to the pressurized supply source 15d installed in the lower end portions of the left and right sides 1c and 1d of the opening 1, and its tip penetrates the guide rail 1e. It arrange | positions so that it may oppose the both right-and-left both end surfaces of the hollow part 12a, and the pressurized air from the air supply pipe 15e is injected in the hollow part 12a. In the above description, the air supply pipes 15e are provided as a pair on the left and right, but one of them may be omitted. In this case, the opening surface of the hollow portion 12a on the side where the air supply pipe 15e is omitted is closed.

  The pressurized air supply means shown in FIG. 12 needs to prevent this because all of the pressurized air from the air supply pipe 15e leaks out of the hollow portion 12a without being supplied into the hollow portion 12a. In that case, as shown in FIG. 13, the opening surface of the hollow portion 12a is closed with a sealing material 15f, and the air supply pipe 15e is inserted into the sealing material 15f to be inserted into the hollow portion 12a. In this case, since the front end portion of the air supply pipe 15e is fixed to the hollow portion 12a of the shielding sheet 12, as shown in FIG. 14, the air supply pipe 15e is formed of an elastic material such as a bellows to an appropriate length. Thus, it is necessary to follow the vertical movement of the shielding sheet 12, and it is necessary to form a space in the partition wall 2 for the vertical movement of the air supply pipe 15e.

  In FIG. 12, FIG. 13 and FIG. 14, the pressurized air is supplied from the left and right end surfaces of the hollow portion 12a. However, the present invention is not limited to this, and the left and right end surfaces of the hollow portion 12a are closed. It is also possible to provide supply holes 20 at the left and right ends of the portion, and supply pressurized air from here into the hollow portion 12a. In this case, as shown in FIG. 15, the hollow of the shielding sheet 12 is formed by connecting the air supply pipe 15 e to the pressure supply source (not shown) provided on the left and right sides 1 c and 1 d of the opening 1 and landing the tip. It is provided so as to be close to the supply hole 20 of the portion 12a, and the pressurized air supplied into the hollow portion 12a is ejected from both the right and left ends of the blowout port 15b and the hollow portion 12a. Since the leaked pressurized air that does not enter the hollow portion 12a is ejected to the outside through the gap between the lower end of the hollow portion 12a and the floor surface, it becomes wind pressure against the insects.

  Also in the present embodiment, as in the first embodiment, when the shielding sheet 12 is closed, between the left and right sides of the lower end of the shielding sheet 12 and the opening 1 and between the lower end of the shielding sheet 12 and the lower side 1b of the opening 1. Even if there is a gap, the insect M cannot approach the opening 1 due to the wind pressure of the air ejected from the outlet 15b.

  16 and 17 show a third embodiment. In the first embodiment shown in FIG. 2, a blowout port 15b for blowing out air is provided in the raised portion 15a (mole portion) of the flooring 16 on the lower side 1b in the opening 1, and in the second embodiment shown in FIG. 15b is provided in the shielding sheet 12 itself, but in this embodiment, the blowout port 15b is formed by the nozzle of the air supply pipe 15e, and the nozzle of the air supply pipe 15e connected to a pressurized supply source (not shown) is formed in the gap g. Place it facing.

With the above-described configuration, when the shielding sheet 12 is closed, the air from the outlet 15b is outside the shielding sheet 12 via the gaps g between the left and right sides of the lower end of the shielding sheet 12 and the left and right sides 1c and 1d of the opening 1. The insect M cannot enter the room through the gap g due to the wind pressure. The other configuration is the same as that of the second embodiment shown in FIG.

  FIG. 18 shows a fourth embodiment. In the third embodiment shown in FIGS. 16 and 17, the blowout port 15 b is formed by the blowout port of the air supply pipe 15 e, but in this embodiment, the blowout port 15 b is different in that it is provided on the floor surface (the lower side 1 b of the opening 1). . That is, the embedded pipe 25 is embedded in the indoor / outdoor direction in the floors on both the left and right sides of the lower side 1b of the opening 1, and one end on the outer side is bent obliquely upward and outward so that the hollow portion 12a is formed. The air outlet 15b is configured to open to the contacting floor surface portion, and the other end on the inner side is connected to an air supply pipe 15e connected to a pressurized supply source (not shown).

With the above configuration, when the shielding sheet 12 is closed, the air from the outlet 15b is ejected from the gap between the hollow portion 12a and the lower side 1b of the opening 1 to the outside of the shielding sheet 12, so that the insect M opens the opening 1 Can't approach. Other configurations are the same as those of the second embodiment shown in FIG.

  FIG. 19 shows a fifth embodiment. This embodiment shows the example which applied to the 1st Embodiment shown in FIG. 2 about the apparatus 30 which sucks an insect with air from the suction opening opened indoors, and captures it with a capture filter. The device 30 is provided in a space S provided inside one or both of the left and right sides 1c, 1d of the opening 1 and inside the partition wall 2, and includes a capture case 30b in which a capture filter 30a is accommodated, It comprises a fan 31 as a supply source.

  The fan 31 is for sucking the inside of the capture case 30b, and these are connected via a pipe line 32. The suction port 30c of the capture case 30b opens to the left side 1c of the opening 1, and the fan 31 7 is connected to one end of a raised portion 15a (mole portion) constituting the air supply line 15 through an air supply pipe 15e as shown in FIG. An attracting light source 33 such as an ultraviolet light source that attracts insects is installed on the indoor side of the partition wall 2 that forms the left side 1 c of the opening 1. The attracting light source 33 is arranged so that light does not leak outside through the gap between the opening 1 and the shielding sheet 12.

  The insect M attracted by the attracting light source 33 is sucked together with air from the suction port 30c and is captured by the capture filter 30a. Thereby, insects in the closed section 3 surrounded by the partition wall 2 are captured. On the other hand, the pressurized air exhausted from the fan 31 is supplied into the raised portion 15a (mole portion) of the air supply line 15 through the air supply pipe 15e and is ejected from the air outlet 15b. In FIG. 1, an arrow A indicates the flow of air sucked and exhausted by the fan 31.

  In the above, the apparatus 30 is applied to the first embodiment shown in FIG. 2, but when applied to the second embodiment shown in FIG. 9, it is applied to the hollow portion 12a and applied to the third embodiment shown in FIG. The air discharged from the device 30 is supplied to the indoor side lower edge of the hollow portion 12a and to the embedded tube 25 when applied to the fourth embodiment shown in FIG.

  In the embodiment described above, the outlet 15b is provided in the lower side 1b of the opening 1 or the hollow part 12a of the shutter means in the expanded state. In addition to this, the upper side 1a of the opening 1 or both the left and right sides 1c, 1d or shutter By providing at the upper edge or both the left and right edges of the means, it is possible to prevent insects from entering one or both of the take-up drum 11 and the guide rail 1e.

  20 to 26 show a sixth embodiment. In any of the above embodiments, the device 30 shown in FIG. 19, that is, the air intake pipe connected to the fan 31 is sucked with the air by the suction force of the fan 31 from the suction port that opens indoors and is captured by the capture filter 30 a. The device 30 for exhausting air from 15e is provided in a space S provided in the lower part of the partition wall 2 forming the left and right sides 1c and 1d of the opening 1. In this embodiment, the device 30 is connected to the partition wall 2. Is different from the first embodiment in that it is housed in a housing 40 independent from the air outlet, and the exhaust port of the air supply pipe 15e is configured as a blowout port 15b. The blowout port 15b is disposed at a position that can be seen from the outside through the opening 1. To do. That is, by arranging the housing 40 so as to protrude in the direction of reducing the opening area of the opening 1 on the left and right indoor sides of the opening 1, the outlet 15 b can be located at a position where it can be seen from the opening 1. In this way, the outlet 15b can be arranged to face a gap g to be described later.

  As shown in FIG. 23, a guide rail 1e in which the left and right sides of the shielding sheet 12 are slidably fitted between the casing 40 portion hidden from the opening 1 and the partition wall 2 is provided upright from the floor surface. And a holding member 41 for holding the guide rail 1e. As shown in FIG. 23, the holding member 41 is formed of a columnar plate 41a and a pair of front and rear (inner and outer) protruding plates 41b protruding in the left-right direction from the left and right side surfaces of the columnar plate 41a. Provided in the protruding plate 41b.

The lower end portion of the shielding sheet 12 is narrowed by cutting off the left and right corners so that the outdoor side surface of the hollow portion 12a is easily contacted with the floor surface when bent on the floor surface. While forming in 12w, the left-right both sides of the shielding sheet 12 part above the narrow part 12w are slidably engaged with the guide rail 1e. That is, as shown in FIG. 26, the guide rail 1e has a quadrangular cross section, and a split groove having upper and lower ends is vertically provided on one side surface thereof, and the left and right sides of the shielding sheet 12 are inserted into the guide rail 1e through the split groove. Insert it up and down. In order to prevent the shielding sheet 12 from being pulled out from the guide rail 1e in the left-right direction, and to make the shielding sheet 12 move up and down smoothly, a widening material 12y such as a hard resin is formed on both the inside and outside of the shielding sheet 12 in the guide rail 1e. Glue. In this way, when the left and right sides of the shielding sheet 12 are slidably engaged with the guide rail 1e, the bar-like material is provided without separately providing the above-described engagement pieces for engaging the shielding sheet 12 with the guide rail 1e. Other chain members or plastic materials such as gel or clay can be used as the weight member 12.

When the lower end portion of the shielding sheet 12 is narrowed as described above, a gap g is generated between the narrow portion 12w and the columnar plate 41a of the holding member 41, so that insects may enter from here. In order to prevent this, the housing 40 is arranged as described above so that the air from the outlet 15b flows out to the outside through the gap g. In addition, the insect invasion prevention effect can be further enhanced by dropping the sheet piece 42 having a length reaching the floor surface from the lower end of the protruding plate 41b to reduce the left and right widths of the gap g.

In the above, the case 40 is protruded into the opening 1 so that the air from the exhaust port of the air supply pipe 15e is jetted directly toward the gap g. However, the independent case 40 is provided in this way. 16 and FIG. 17, the exhaust port of the air supply pipe 15e is disposed in a state where the device 30 is disposed in the space S provided in the lower part of the partition wall 2 forming the left and right sides 1c and 1d of the opening 1. It is also possible to eject air toward the gap g using the air outlet 15b. Other configurations in this embodiment are the same as those in the first embodiment shown in FIG. 2 and the third embodiment shown in FIGS.

  The present invention is in the field of insect intrusion prevention devices installed at entrances and exits of closed spaces such as buildings in factories and the like at manufacturing sites of foods and pharmaceuticals that are required to prevent insect foreign matter from entering products. Can be used.

1 Opening 1a Upper side 1b Lower side
1c Left side 1d Right side 1e Guide rail 2 Bulkhead 3 Closed section 10 Shutter means 11 Winding drum 11a Shutter case
11b Winding shaft 11c Support rod 12 Shielding sheet
12a Hollow part 12b Weight material 14 Air ejection means
15 Air supply line 15a Raised part 15b Outlet
15d Pressurized supply source 15e Air supply pipe 15f Sealing material
16 Floor material 20 Air supply hole 25 Embedded pipe
30 device 30a capture filter 30b capture case 30c suction port 31 fan 32 conduit
33 Attracting light source 40 Housing 41 Holding member 41a Columnar plate 41b Projecting plate A Air flow g Gap
P insertion port S space

Claims (3)

An opening that is an entrance of a closed compartment surrounded by a partition;
Shutter means installed so that it can be deployed in the opening;
Air having a blowout port installed on at least one side of the peripheral portion of the opening or the edge of the shutter means in a deployed state, and configured to blow air outward from the blowout port to the closed section In a shutter mechanism with an insect intrusion prevention function comprising a jetting means,
An attracting light source that attracts insects to the inner side of the closed section on the side of the opening, a suction port installed in the vicinity of the attracting light source, and a trap for capturing insects sucked together with air from the suction port Having a device with a capture filter;
Provided to supply air discharged from the device to the air jetting means,
A shutter mechanism with an insect intrusion prevention function, wherein the attraction light source is disposed so that light does not leak outside through a gap between the opening and the shutter. An opening that is an entrance of a closed compartment surrounded by a partition;
Shutter means installed so that it can be deployed in the opening;
Air having a blowout port installed on at least one side of the peripheral portion of the opening or the edge of the shutter means in a deployed state, and configured to blow air outward from the blowout port to the closed section In a shutter mechanism with an insect intrusion prevention function comprising a jetting means,
A shutter mechanism with an insect intrusion prevention function, characterized in that an air supply line having the outlet is formed in the opening portion directly below the shield sheet in the unfolded state along the lower side of the opening portion. The shutter means is provided on the upper side of the opening, and is housed in the winding drum, and is provided so as to be able to expand from the winding drum to the lower side of the opening. A shielding sheet,
The shutter mechanism with an insect intrusion prevention function according to claim 1 or 2 , wherein the outlets are arranged at least on both sides in the longitudinal direction of the lower edge of the opening or the lower edge of the shielding sheet.