JP3220337B2 - Wind tube storage device and method of removing stored wind tube - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind pipe used as ventilation means in underground structures, tunnel structures, and the like.
In particular, the present invention relates to a wind tube storage device for easily installing a wind tube and a method for removing a wind tube stored in the device.

[0002]

2. Description of the Related Art In general, a wind tube of this type is formed by molding a resin sheet (tarpaulin) having airtightness and flexibility into a cylindrical shape and forming it into a predetermined length. It is installed while extending by combining. In addition, fasteners are usually used for the end connection of this type of wind tube.

[0003] However, with the progress of construction at the construction site,
When connecting the air tubes one after another, air leakage at the connection becomes a problem. For this reason, for example, if the connection of the air tubes is to be airtight, the end structure of the air tubes needs to be complicated, which not only increases the manufacturing cost of the air tubes, but also increases the cost of this type of connection work at the construction site. Is complicated. In addition, in the case of permitting some air leakage and making the connection state relatively simple, if the number of connections increases with the progress of construction, the total amount of air leakage increases, and the ventilation function is significantly reduced. There is.

[0004] From such a viewpoint, conventionally, for example, between the inner cylinder and the outer cylinder which are arranged coaxially, a wind tube is housed so as to be foldable and drawable, and the wind tube is sequentially housed as the construction progresses. An apparatus configured to be drawn out from a cylindrical body and disposed has been proposed (Japanese Patent Publication No. 2-5240).

According to the proposed apparatus, it is possible to prepare air tubes of relatively long dimensions and sequentially arrange them in a state in which they are housed in a compact manner. And the advantage that the amount of air leakage can be reduced as well as the operability can be obtained.

[0006]

However, the above-mentioned apparatus in which the above-described wind tube is folded and pulled out is still disadvantageous as described below.

That is, in the above-described conventional apparatus, a funnel is detachably connected to the inner cylinder at one end opening side of the air tube housing cylinder, and has a diameter substantially the same as the diameter of the air tube when pulled out from the housing cylinder. A ring having a diameter of 3 mm and detachably fitted to the funnel is provided, and a tip end of a wind tube pulled out from the opening side of the storage cylinder through the funnel is fixed to a ring of the preceding wind tube. The rear end of the air tube is attached to the ring fitted to the funnel to separate the ring from the funnel.

However, in the above-mentioned conventional apparatus, a ring having a diameter substantially the same as the diameter of the air tube when pulled out from the storage cylinder is required to facilitate the drawing of the air tube.
The contact with the air tube must be loose, and therefore, the required tension cannot be maintained when the air tube is pulled out from the storage cylinder, and there is a problem that the air tube is unnecessarily drawn out. In this case, if the ring is designed to increase the contact resistance with the wind tube by increasing the diameter of the ring, for example, the ring may be disengaged and pulled out into the middle portion of the wind tube when the wind tube is pulled out. become unable. When the ring is used to connect the air tubes, a connecting member having a sufficient pressure contact and holding force from the outer peripheral portion of the ends of the air tubes in order to firmly fix each end of the air tubes to the ring is used. It has to be used and there are many problems in terms of workability and cost.

Accordingly, an object of the present invention is to store and hold a wind tube in a conventional manner in a manner that the wind tube can be folded and pulled out, and when installing the wind tube, when the wind tube is sequentially pulled out, a required tension is applied to the wind tube. A wind tube storage device that can be smoothly pulled out while being held, and can be easily connected directly to each other without using a ring or the like when connecting the wind tubes. Another object of the present invention is to provide a method for removing a stored air tube.

[0010]

In order to achieve the above object, a wind tube housing device according to the present invention is a wind tube housing device in which a flexible wind tube is folded and stored at a required interval in a longitudinal direction thereof outside a tube. and the pipe holding member, provided on the cylinder opening side end portion of the wind pipe holder comprises gradually widening Shinano wind tubes folded and configured flange portion so as to draw et wind pipe, the The flange is a cylinder
And an expanding portion at the opening side of the air tube holding body;
Inner diameter of flexible air tube arranged adjacent to the large-diameter end face of the inclined portion
It consists of a packing with a larger outer diameter.

Further , as a wind tube storage device according to the present invention,
Moves the flexible air tube between the inner cylinder and the outer cylinder in the longitudinal direction.
Wind tube holder that is folded and stored at required intervals in the direction
It is provided on the inner cylinder at one end on the opening side of the wind tube
The wind tube is pulled out while gradually expanding the wind tube
And a flange portion attached to the inner cylinder.
An expanding portion on the opening side of the wind tube holder, and a large diameter of the expanding portion.
The outer diameter of the flexible air tube located adjacent to the side end face
It can also be composed of a large packing.

[0012]

[0013]

[0014]

[0015]

[0016]

According to the wind tube storage device of the present invention, a flexible wind tube is folded and stored at a required interval in the longitudinal direction between the inner tube and the outer tube of the wind tube holder. While gradually expanding the folded air tube through a flange portion provided at one end on the opening side of the tube holding body, the air tube can be sequentially pulled out while maintaining sufficient tension in the extending direction thereof. .

Further, according to the present invention, one end of the folded wind tube is pulled out from the open end of the wind tube holder of the wind tube storage device via the flange portion while gradually expanding the one end, and then the wind is pulled out. One end of the pipe and the rear end of the preceding wind pipe are connected via a fastener, and then the wind pipe connected to the preceding wind pipe is maintained at a required tension and the wind pipes are successively smoothly moved to the rear end. By repeating the same operation as described above, it is possible to easily and quickly achieve the installation of the wind pipe at various construction sites.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an air tube accommodating apparatus according to an embodiment of the present invention.

FIG. 1 shows an embodiment of a wind tube storage device according to the present invention. However, in FIGS. 1A to 1C, the wind tube storage device according to the present embodiment basically includes a flexible wind tube 10 which is folded at required intervals in the longitudinal direction.
When, the wind pipe holder 12 that houses holding the ventilation tube 10, the flange portion 1 provided on the opening side end portion of the wind pipe holder 12
And 4.

However, the air tube holder 12 is provided in the inner cylinder 1.
6 and an outer cylinder 18. The inner cylinder 16 and the outer cylinder 18 are respectively connected to an outer cylinder connecting flange 16a at the other end of the closed end.
And an inner cylinder connecting flange 18a, and the outer cylinder connecting flange 16a and the inner cylinder connecting flange 18a are coaxially coupled to each other to be integrally fixed. The other end of the inner cylinder 16 is slightly extended from the outer cylinder 18, and a fixing flange 16b is provided at the end for connection and fixing with an external device.

As shown in FIGS. 2 (a) to 2 (c), the inner cylinder 16 is provided at one end on the opening side with respect to the outer cylinder connection flange 16a provided at the other end of the inner cylinder 16. A holding ring 20 having a diameter larger than the outer diameter of the holding rod 16 is provided. A plurality of holding rods are provided between the outer cylinder connecting flange 16a and the holding ring 20 while being radially separated from each other and separated by a predetermined distance in the circumferential direction. 22 is fixedly arranged. With such a configuration , the folded air tube 10 can be properly housed and arranged in a space formed between the inner cylinder 16 and the holding rod 22.

Further, as shown in FIGS. 3A to 3C, for example , the outer cylinder 18 is provided with the inner cylinder 1 as shown in FIGS.
6 is formed in a semi-cylindrical shape so as to surround the lower semi-cylindrical portion .
You . This is a result of saving the material in order to protect the lower half of the inner cylinder 16 which is particularly susceptible to damage, and to easily check the amount of the stored folding air tubes. Therefore, the outer tube 18 may be formed so as to surround the entire outer periphery of the inner tube 16 according to the conditions for installing the air tube. From such a viewpoint, as the outer cylinder 18
Has a configuration consisting only of the form of the holding rod 22 described above.
It is also possible. The outer cylinder 18 is preferably provided with reinforcing ribs 18b at predetermined intervals in the longitudinal direction or with reinforcing stays 24 along upper edges on both sides in the longitudinal direction.

On the other hand, the flange portion 14 provided at one end on the opening side of the wind tube holder 12 is provided with the flange portion 14 shown in FIGS.
As shown in detail, a substrate 26 fixed to the inner cylinder 16,
A cushion 28 made of a resilient member forming an enlarged portion formed by an inclined surface 28a inclined downward to the opening side of the wind tube holder 12 attached via the substrate 26;
And a packing 30 formed of an elastic member having a larger outer diameter than the inner diameter of the air tube 10 disposed adjacent to the large diameter side end face, and having a larger outer diameter than the packing 30 for fixing the packing 30 to the cushion 28. And a small holding flange 32.

By constructing the flange portion 14 in this manner, when the folded wind tube is pulled out from the one end of the open side of the wind tube holder 12, when the air tube passes through the cushion 28 and passes over the packing 30, The gasket 30 made of an elastic member having an outer diameter larger than the inner diameter of the wind tube 10 flexes and contacts,
To generate the required frictional resistance between the inner surface of the wind tube 10 and
A constant tension can be maintained in the extending direction of the wind tube 10. At the same time, it is possible to prevent the wind tube 10 from being unnecessarily pulled out from the wind tube holder 12.

Next, a description will be given of a method of using the air tube housing device according to the present invention having the above-described structure.

FIG. 5 shows a first example of use, in which reference numeral 40 indicates a ventilator mounted on a movable gantry 42.
Connected. In this case, as the moving gantry 42 advances, the ventilation tube 40 is placed at the top, and
From 4, the air tubes 10 are sequentially drawn out. Wind pipe 1 pulled out
0 is a messenger wire 46 provided at the construction site.
Then, a support piece 10a previously provided on a part of the air tube 10 is suspended and supported at predetermined intervals via a suspending tool 48 as appropriate.

FIG. 6 shows a second example of use. In this case, the ventilation device 40 is fixedly installed at the starting point, and the air tube drawn out of the air tube housing device 44 is provided on the exhaust side of the ventilation device 40. 10 is connected to one end, and a wind tube storage device 44 is placed at the head of a movable gantry 42. In this case, the air tubes 10 are sequentially drawn out from the air tube storage device 44 as the movable gantry 42 advances, and the drawn air tubes 10 are suspended and supported by the messenger wires 46 in the same manner as described above.

FIG. 7 shows an embodiment of a connecting means of a wind tube applied to the wind tube storage device according to the present invention. That is, in this embodiment, as shown in FIG. 7A, fasteners 50, 50 are attached to the ends of the opposing air tubes 10, 10, which are to be joined, and these are attached to FIG. 7B. By bonding as shown, the connection of the air tubes can be achieved quickly and easily.

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. For example, only the inner cylinder is used, and the outer cylinder and the holding frame are omitted.
Many design changes can be made without departing from the spirit of the present invention.

[0030]

As described above, in the wind tube storage device according to the present invention, in the wind tube holder, the flexible wind tube is provided at a required distance in the longitudinal direction between the inner tube and the outer tube. The wind tube holder is folded and stored, and while maintaining the tension in the extending direction while gradually expanding the folded wind tube through a flange portion provided at one end on the opening side of the wind tube holder. The wind pipe can be pulled out smoothly one after another. Therefore, the wind tube storage device of the present invention has a simple structure, is easy to handle, and can improve the workability and reduce the equipment cost.

According to the present invention, one end of the folded air tube is pulled out from the open end of the air tube holder of the air tube housing through the flange portion while gradually expanding the air tube. One end of the pipe and the rear end of the preceding wind pipe are connected via a fastener, and then the wind pipe connected to the preceding wind pipe is maintained at a required tension and the wind pipes are successively smoothly moved to the rear end. By repeating the same operation as described above, it is possible to easily and quickly attain the installation of the wind pipes at various construction sites, which has many excellent advantages.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a wind tube storage device according to the present invention,
(A) is a side view, (b) is a left end view of (a), and (c) is a right end view of (a).

FIG. 2 shows an inner cylinder in FIG. 1, (a) is a side view,
(B) is a left end view of (a), and (c) is a right end view of (a).

FIG. 3 shows the outer cylinder in FIG. 1, (a) is a side view,
(B) is a left end view of (a), and (c) is a right end view of (a).

FIG. 4 is an exploded view of a flange portion in FIG. 1,
(A) is an end view of the holding flange, (b) is an end view of the packing, (c) is an end view of the cushion, (d) is a side view of the board, and (e) is a joint between the holding flange, the packing and the cushion. It is explanatory drawing which shows a positional relationship.

FIG. 5 is a schematic configuration diagram showing an embodiment of an installation state of the wind tube storage device shown in FIG.

FIG. 6 is a schematic configuration diagram showing another embodiment of the installation state of the air duct housing device shown in FIG. 1;

7A and 7B are explanatory perspective views showing a state before coupling, and FIG. 7B is an explanatory perspective view showing a coupling state before coupling.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Flexible air tube 10a Supporting piece 12 Air tube holder 14 Flange part 16 Inner cylinder 16a Outer cylinder connection flange 16b Fixed flange 18 Outer cylinder 18a Inner cylinder connection flange 18b Reinforcement rib 20 Holding ring 22 Holding rod 24 Reinforcement stay 26 Substrate 28 Cushion 28a Inclined surface 30 Packing 32 Holding flange 40 Ventilation device 42 Moving frame 44 Wind tube storage device 46 Messenger wire 48 Suspension device 50 Fastener

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 2-5240 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 13/02

Claims (2)

(57) [Claims] 1. A wind tube holder for storing a flexible wind tube outside the tube at a predetermined interval in a longitudinal direction thereof and provided on a tube at one end of an opening side of the wind tube holder. includes progressively widening Shinano wind tubes folded and a flange portion which is adapted to draw et wind tube, the flange portion is attached to the hour, ventilation tube
An expanding part on the opening side of the holding body, and a large-diameter end face of the expanding part
A pipe whose outer diameter is larger than the inner diameter of a flexible air tube
A wind tube storage device consisting of 2. An air tube holder for storing a flexible air tube between the inner tube and the outer tube by folding the air tube at a required interval in a longitudinal direction thereof, provided on the inner cylinder, with gradually widening Shinano wind tubes folded and a flange portion which is adapted to draw et wind tube, the flange portion inner cylinder
And an expanding portion at the opening side of the air tube holding body;
Inner diameter of flexible air tube arranged adjacent to the large-diameter end face of the inclined portion
Wind tube storage device composed of packing with a larger outer diameter .