JP2001003662A - Self-expansible film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a film itself from being bent and sagged even when it is set in an inclined or horizontal state by attaching an elastic aggregate to a film such as cloth to impart the film extending and attitude retaining function thereto. SOLUTION: Since the film connection part 4 of a film 3 having elastic aggregates 1, 1' attached thereto is connected to a roll pipe 2, the elastic aggregates 1, 1' are also integrally unwound when the film 3 is unwound. At this time, since elastic distortion is removed from the elastic aggregates 1, 1', and the elastic aggregates 1, 1' are linearly extended, the film 3 is extended as it is drawn, and its attitude can be retained. Since the elastic aggregates 1, 1' are elastically deformed and fitted and wound on the roll pipe 2 in winding the film 3, the film 3 can be housed in a body such as cylindrical case. Accordingly, since the film 3 can retain the horizontal attitude only by setting an unwinding guide with the direction being determined even in a lighting horizontal skylight or inclined skylight, this film can be easily used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to form a single flat body like a hard plate, regardless of whether a cloth or a plastic film sheet or the like is vertical, horizontal or inclined. Relating to a film-like material
It is a self-extensible film formed so as to be able to be used for a screen such as a roll blind used as a shade or a blind for a window or a window, or as a shade for a car, or a display panel for a poster or a photograph. . This relates to a self-extensible film-like material that enables the film-like material to be stretched in an intended direction without refraction of the film-like material itself even when installed in an inclined or horizontal state. is there.

[0002]

2. Description of the Related Art A conventional screen such as a blindfold or a roll blind is provided with an auxiliary material such as a weight bar at an end of a film-like material. It is configured to hang down along a window or a window and perform a function of blindfolding or shading. In general, a sunshade of an automobile is formed of a small mat-like material having a fixed shape and a substantially rectangular shape. In general, a display panel for a poster, a photograph, or the like is a type of a thin box having a frame material lined with flat cardboard or plywood.

[0003]

However, in a conventional roll blind or the like, since a screen such as a cloth is made to function in a natural hanging state, it is stretched along a horizontal or inclined skylight or window. to, for example, the mutual windows and window side and screen side, either anchored to each other by such as a guide wire or fixture, or the like sucker is provided at an end portion of the screen, direct adsorption to the window or window surface I had no choice but to fix it. Further, since the conventional sunshade of a car is a fixed type, the light blocking range is limited, and it is not always suitable depending on the angle of incident light and the body shape of the driver. In addition, conventional display panels are made of cardboard, plywood, foamed plastic, etc., and therefore lack flexibility and have a limited size, and are bulky, impeding workability during storage and transportation. I was

[0004] Therefore, an object of the present invention is to provide a film or a plastic film sheet with an appropriate degree of flexibility and linearity in order to expand the film-like material and maintain the posture of the expanded state, and to enable storage by winding. By attaching an elastic aggregate having a restoring force, the film-like material itself, even in an inclined or horizontal state, shows its own expansion and the function of maintaining its expanded posture, and a screen such as a roll blind,
An object of the present invention is to provide a self-extensible film which can be used for a sunshade of an automobile, a display panel, or the like.

[0005]

Means for Solving the Problems A self-extensible film according to the present invention has been proposed to solve the above problems, and has the following constitution. That is, the present invention provides a self-extensible film-like material in which an elastic aggregate is attached to a film-like material such as a cloth or a plastic film / sheet so as to have a function of expanding the film-like material and maintaining a posture.

Further, according to the present invention, the elastic aggregate is formed with an elastic curved surface for providing an appropriate flexibility and a linearity restoring force, so that the film-like material can be fed and wound up.
The self-extensible film is provided.

Further, according to the present invention, the elastic aggregate connected to the roll pipe linearly extends from the roll pipe when feeding out the film, and is wound around the roll pipe when winding up the film, The present invention provides the self-extensible membrane which is configured to be retractable.

According to the present invention, the above-mentioned elastic aggregate is formed of at least one kind of elastic material selected from the group consisting of a metal or ceramic having a high elasticity value or a plastic band or linear body. In addition, the present invention provides the self-extensible film.

[0009]

DETAILED DESCRIPTION OF THE INVENTION The basic construction of the self-extensible membrane of the present invention is, for example, to replace a conventional roll blind screen or to replace a conventional automobile awning.
Alternatively, a belt-like or linear elastic aggregate having flexibility and a linearity restoring force is attached to a film-like material as a substrate in place of a conventional display panel. In other words, the film-like material connected to and wound on the roll pipe is made of a band-like or linear-like elastic aggregate that acts in the elastic region, and is made into a sheet-like or linear-like or dotted-line-like adhesive. Is provided with a vertically long pocket or the like so that the elastic aggregate can be enclosed therein. Therefore, when the film-like material is fed, the elastic aggregate is also fed out integrally. At this time, since the elastic aggregate is stretched linearly after the elastic strain is removed, it is possible to expand the film-like material by pulling it, and to maintain its posture. Further, when winding up the film-like material, the elastic aggregate is elastically deformed and adapted to the roll pipe and wound around, so that the film-like material can be stored in a main body such as a cylindrical case.

The elastic aggregate can fulfill the function required by the present invention even if it is a wire-shaped linear body. Preferably, a band-like body having a semi-cylindrical warp surface works more effectively. Things. That is, since this elastic aggregate has a warped surface as an elastic curved surface, it can function in any direction and angle such as horizontal direction, inclined direction, upward direction, downward direction, and lateral direction. It is. Here, the flexibility and the linearity restoring force of the elastic aggregate can be explained as follows. That is,

When the elastic aggregate is rolled up around a roll pipe, the inside of the curved surface of the elastic aggregate is continuously brought into close contact with the roll pipe, and the curved surface is elastically deformed and opened to be flat. Refers to the property of winding around a roll pipe. When the elastic aggregate is fed out of the roll pipe, the elastic aggregate continuously separates from the roll pipe, restores the warped surface shape, returns to a semi-cylindrical shape, and assumes a linear stretching posture. Refers to the holding power. Thus, the elastic aggregates share the conflicting properties of flexibility and linearity restoring force. Therefore, the flexibility is inversely proportional to the groove depth and the elastic coefficient of the curved surface formed in the elastic aggregate, and is proportional to the radius of curvature. The linearity restoring force is proportional to the groove depth and the elastic coefficient of the warped surface, and is inversely proportional to the radius of curvature.

Therefore, if formed from the same material, the winding resistance is small if the curved surface angle is as gentle as possible and the groove is finished to be an elastic curved surface with a shallow groove. On the other hand, in order to maintain the posture after the expansion, it is preferable to finish the elastic curved surface with a sharply curved surface angle and a deep groove. Practically, it suffices to select and form a suitable antagonistic point having the above characteristics.

In order to reduce the bending moment due to the load of the elastic aggregate, it is preferable to use a lightweight cloth or a plastic film sheet for the film-like material. If it is lightweight, even if it is installed in a horizontal state, an inclined state, or a horizontal state, the elastic aggregate is less burdened by the load, so it is not easily deformed or sagged, so that the stretched posture of the membrane can be maintained without difficulty. .

With respect to an external force in the vertical direction with respect to the warped surface as an elastic curved surface, if the torsional stress is not applied and the elasticity is within the elastic limit, the shape retaining force of the warped surface acts to the maximum and the bending is not easily refracted. Here, since the elastic aggregate adheres to the stretched film-like material and is in a state of being pulled right and left, it is difficult for torsion stress to be applied. Therefore, it does not bend, and even if it is expanded in a horizontal state, an inclined state, or a horizontal direction, it is possible to maintain the expanded posture.

[0015]

The present invention will be described below with reference to examples, but is not limited to these examples without departing from the gist of the invention. In other words, the purpose of the present invention is to explain the self-expansion of the film-like material and the action mechanism of the elastic aggregate for maintaining the posture thereof, and therefore, a detailed description of the main body structure such as a blind is omitted.

FIG. 1A is a perspective view showing an embodiment of the basic structure of the present invention. The membrane connecting part 4 of the membrane 3 provided with the elastic aggregates 1 and 1 ′ is connected to the roll pipe 2, and the other end of the membrane 3 is extended as a tip bar 5.
2 shows a state in which the film-like body 3 is drawn out in the direction.
In addition, auxiliary bones 4a are attached to the membrane 3 in parallel with the membrane connecting portion 4. Here, the film-like body 3 is installed in an inclined state, but the elastic aggregates 1 and 1 ′ extend linearly, indicating that the film-like body 3 is spread in a planar state.

FIG. 1B is a side sectional view showing the embodiment of FIG. 1A. Here, the membrane 3 is held in a linearly inclined state by the elastic aggregate 1. FIG. 1 (C)
FIG. 2 is a perspective view showing an embodiment in which the film-shaped body 3 of FIG. 1 (A) is wound up. Here, two elastic aggregates 1,
Since 1 ′ is wound up as the spiral shape S, it is shown that the rolled pipe 2 can be flat and the thickness of the rolled-up pipe can be minimized without forming bumps on the roll pipe 2.

Here, by changing the attachment angle θ of the elastic aggregates 1 and 1 ', the spiral shape S wound around can be changed. This indicates that if the elastic aggregates 1 and 1 'are attached at an optimum angle, the rolled-up shape of the roll pipe 2 can be formed on a smooth surface.

FIG. 2 is a plan view showing the embodiment of FIG. This shows a state in which the fed-out rectangular film-like body 3 is extended by two elastic aggregates 1, 1 'attached obliquely at an angle θ, and at the same time, the two elastic aggregates 1,
1 'shows a state of being divided into three parts. That is, it is composed of two triangular portions a and a 'and one trapezoidal portion b. It shows that a poster or a photograph can be attached to the stretched film surface (including the back surface), or a poster design or a photograph can be printed on the film itself, which can be used as a display panel.

The triangular portion a is composed of the elastic aggregate 1 and the
e and a triangular portion a 'surrounded by three sides composed of the elastic aggregate 1' and the membrane-like body side 3e 'and the membrane coupling portion 4. Part. The trapezoidal portion b is a portion surrounded by four sides of the elastic aggregates 1 and 1 ′, the membrane connecting portion 4 and the feeding tip bar 5. Since the three divided portions are connected to each other and integrated, it is understood that one flat film without slack is formed. In addition, the slack that occurs on the film-like body side portions 3e, 3e '
Auxiliary bones 4a are provided at appropriate positions on the membrane 3 for reinforcement. The number, size and shape of the auxiliary bones 4a are not limited as long as the auxiliary bones 4a are lightweight and elastic, as long as the function of the membrane 3 is not impaired.

FIG. 3A is a cross-sectional view as viewed from a section taken along a broken line WW in FIG. 2, and FIG. 3B is a sectional view of FIG.
It is an expanded sectional view of the part circled by the circle. The elastic aggregate 1 ′ shown in FIG. 3B is adhered to the membrane 3 as a linear or dotted line G at the outer bottom of the warped surface R of the aggregate. On the other hand, FIG. 3 (C) shows that the elastic aggregate 1 ′ is attached to the film-like body 3 as a planar adhesive on the inner surface of the warped surface. That is, FIG. 3B shows an attachment method in which a linear or dotted line G is used for bonding, which is also shown in FIG. This method of attachment by adhesion is preferable because the width of the adhesion surface is small and thus it is hard to be affected by repeated deformation due to elastic deformation of the warped surface R. 3 (B) and 3 (C), the warp surface R, the warp surface angle T, and the warp surface groove depth U of the elastic aggregate 1 ′ attached to the membrane 3 are formed. Is shown. FIG. 3D shows a modification of FIG. 3C.

FIG. 4A is a front view showing an embodiment in which the self-extensible film of the present invention is placed vertically and horizontally in a double glass sash window, and FIG. , FIG.
It is sectional drawing seen from the cut surface of the broken line XX of (A). In roller blind or the like of this embodiment, for example, in combination with an electric motor, for example, indicates that be enclosed in double glazing windows can be used.

FIG. 5 is a partial plan view showing an embodiment when the elastic aggregate 1 is fed out from the main body A2 of the self-expandable film-like body of the present invention. Here, the elastic aggregate 1 is adhered and attached as a dotted line G to the membrane 3 at the outer bottom of the warped surface R, and the feeding direction V of the elastic aggregate 1
2 is determined by the feeding guide portion K and the guide portion J provided at the second position.

FIG. 6 shows that the membrane 3 of the present invention is used as a main body A2 of a roll blind or the like for a front window 7 of an automobile.
It shows an example attached to the upper part of the. FIG. 8 is a side sectional view showing an embodiment in which a sun visor is also mounted along the inner surface of a front window 7 of a vehicle from a main body A2 such as a roll blind or the like, and FIG. ing. Here, the film 3
Is shown in a state in which the feeding guide portion J is pointed downward and forward of the front window 7, and the film 3 is fed in parallel along the inclination of the front window 7.

FIG. 7 is a perspective view showing an embodiment of a conventional roll blind.

As the film material of the self-extensible film body such as a roll blind of the present invention, general-purpose plastic film sheets, engineering plastic film sheets and the like can be suitably used in addition to cloth products.
In addition, a film or sheet material which has been subjected to an appropriate concealing treatment by metallizing processing, coloring, foaming, or the like, from among those having excellent properties such as light weight and light resistance, heat resistance, heat shrinkage, tensile strength, etc. The material may be selected from a single material or a composite material.

At the tip of the membrane, a pipe or rod made of a metal such as aluminum alloy or a variety of plastics having a light weight and high rigidity is attached as a delivery tip bar 5 and directly or with a pull cord. The film may be fed or wound by operating with P or the like. Further, for the winding, for example, if a release device or the like is attached by combining a shaft of a roll pipe incorporating a coil spring for winding with a ratchet gear or the like, the effectiveness and practicability are improved.

[0028]

Since the present invention is configured as described above, it exhibits the following effects.

When used as a film material such as a roll blind, for example, a horizontal skylight or an inclined skylight for lighting,
Since the horizontal posture is maintained only by setting the direction of the feeding guide and setting it, it can be used easily.

When used as a film material such as a roll blind, if an electric motor is connected to a roll pipe, the film material can be easily opened and closed from a remote place by using electric wiring or infrared remote control. It can be installed and used in places out of reach.

If the present invention is applied to a large-scale membrane, it can be used as a waterproof tent, a tent house, and other shielding membrane devices that can be easily expanded.

When used as a film material such as a roll blind, if it is incorporated in a sash or the like of a double-glazed window, it is used as a light-shielding film device that is free from flapping due to external influences such as wind and does not require a curtain box or the like. can do.

When mounted on windows of automobiles or other vehicles, ships, aircrafts, and the like, they can be used as sun visors or blinds that can easily adjust the light shielding range.

In particular, when the sun visor is also used in an automobile, the extension range of the film 3 can be freely adjusted as shown in FIG. 8, so that a wide range can be covered. Therefore, unlike the conventional fixed type, it can be adapted to the driver's line of sight of any body shape, so that it is easy to secure the field of view during driving and safety is improved. Also, while parking and stopping,
As shown in FIG. 8, if the film-like body 3 is fully extended along the front window 7, the driver's seat and the passenger's seat under the scorching sun are shielded from direct light, and the temperature rise in the vehicle compartment is suppressed. It is also effective for energy saving.

[Brief description of the drawings]

FIG. 1 (A) is a perspective view showing an embodiment which is extended in an inclined state. (B) It is side sectional drawing which shows embodiment which extended | trew out in the inclined state. (C) It is a perspective view which shows embodiment of a winding shape.

FIG. 2 is a plan view showing the embodiment in an extended state.

FIG. 3A is a cross-sectional view showing the embodiment as viewed from a cut surface WW of FIG. 2; FIG. 3B is an enlarged cross-sectional view showing a portion surrounded by a circle in FIG. FIG. 3C shows a portion surrounded by a circle in FIG. 3A, which is another form of FIG. 3B. (D) It is sectional drawing which shows the deformation | transformation of FIG.3 (C).

FIG. 4 (A) is a front view showing an embodiment in which it is placed vertically and horizontally in a double-glazed sash window. (B) It is sectional drawing which shows embodiment seen from XX side of FIG. 4 (A).

FIG. 5 is a partial perspective view showing an embodiment when an elastic aggregate is fed out from a roll pipe of a main body as a membrane.

FIG. 6 is a side sectional view showing an embodiment in which the membrane is attached to an inner surface of a front window of an automobile.

FIG. 7 is a perspective view showing an embodiment of a conventional roll blind.

FIG. 8 is a perspective view showing an example of an embodiment installed as a sun visor of an automobile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 ', 1 "Elastic aggregate 2 Roll pipe A2 Main body, such as a roll blind 3 Membrane body 3e, 3e' Membrane body side part 4 Membrane connection part 4a Auxiliary bone 5 Extension tip bar 6 Glass plate 7 Front window a, a 'Triangle-shaped part b Trapezoidal part J Guide part K Feed-out guide part R Warp surface S Spiral shape T Warp surface angle U Groove depth P Pull cord G Linear or dotted line bonded part

Claims (4)

[Claims] 1. A self-extensible film-like body characterized in that an elastic aggregate is attached to a film-like material such as a cloth or a plastic film / sheet so that the film-like material has functions of stretching and maintaining a posture. 2. The self-spreading device according to claim 1, wherein an elastic curved surface is formed on the elastic aggregate so as to provide a suitable bending property and a linearity restoring force, so that the film-like material can be fed and wound up. Membrane. 3. The elastic aggregate connected to the roll pipe extends linearly from the roll pipe when the film material is fed out, and is wound around the roll pipe when winding up the film material so that it can be stored. 3. The self-extensible film according to claim 1 or 2. 4. The elastic aggregate is formed of at least one kind of elastic material selected from the group consisting of metal or ceramic having a high elasticity value or a band or a line of plastic. 4. The self-extensible film according to any one of items 3 to 3.