JP4699956B2 - Vehicle ceiling blind system - Google Patents

Description

  The present invention relates to a skylight blind provided in a ceiling portion of a vehicle such as a passenger car.

  A structure in which a skylight is provided on the ceiling of a passenger car is known. In general, the ceiling provided with the skylight is called a panoramic roof. The skylight is provided with an openable / closable blind (shade) so that light from the skylight does not enter the vehicle when sunlight is strong or dazzling. As the open / close blind, a slide type is generally used in which a plate-like one is slid along the ceiling surface. However, since the sliding blind needs to secure its own storage space, there is a problem that the aperture ratio of the skylight (the ratio of the skylight area to the ceiling area) is limited.

As a device for increasing the aperture ratio of the skylight, a structure has been proposed in which the blind is made flexible like a cloth and is wound and stored (see, for example, Patent Document 1). Such a blind made of a flexible material has a problem of slackness, and therefore needs to be stretched by some method. In Patent Document 1, the edge in the width direction of the blind has a reinforcing structure, and when the drawer is pulled out, the reinforcing portion is bent in the vertical direction and engaged with the guide portions provided on both sides of the ceiling, thereby extending the tension in the width direction. The configuration to be secured is described.

JP 2000-190733 A (abstract)

  The configuration described in Patent Document 1 can ensure the tension in the width direction, but the edge portion in the width direction of the blind is a reinforcing structure, so that the thickness of the portion is increased. Therefore, a winding diameter becomes large when it winds up. Further, when a multi-layered blind as will be described later is used, or when the blind covers a skylight with a large aperture ratio, the winding diameter of the blind becomes large. A vehicle, particularly a passenger car, has a low ceiling height and a thin ceiling structure. Therefore, if the winding diameter of the blind is large, the shape of the vehicle body near the storage portion of the blind becomes distorted and the design is deteriorated. Alternatively, the interior space becomes narrower. That is, as shown in FIG. 5A, if the winding diameter of the blind 501 in the wound state is small, the influence on the design of the surface shape 502 of the ceiling portion in the vicinity of the blind storage portion is small. However, when the winding diameter is increased, it is necessary to match the shape of the blind 501 with the surface shape 502 wound up, as shown in FIG. Therefore, it is desired that the blind winding diameter is as small as possible. In this respect, the technique described in Patent Document 1 is disadvantageous.

  Further, in the technique described in Patent Document 1, since the edge portion in the width direction of the blind is bent at the time of unfolding, the blind may be repeatedly bent when opening and closing is repeated, and the blind may be damaged. In particular, when pursuing light-shielding properties and heat-shielding properties for shielding strong sunlight, durability against repeated folding must be sacrificed, so it is not desirable to bend the blind at an acute angle. Also, in order to ensure light shielding properties and heat shielding properties, it is useful to make the blind a multilayer structure. However, the multilayer structure is weak against bending, and delamination is likely to occur due to repeated folding (that is, easily damaged). ).

  Further, in the technique described in Patent Document 1, when a multi-layered blind is used, since the blind having a certain thickness is folded, the transition from non-folding (blind drawing state) to folding (blind winding state) is performed. A certain path length is required to perform the above. The part of the path length cannot be made to function as a skylight because the blind remains without being wound when the blind is wound. This is an obstacle to the desire to secure the opening area of the skylight as large as possible.

  Further, in the technique described in Patent Document 1, the bent portions of the edges on both sides in the width direction of the blind are engaged with the guide portion, and tension is applied to the width direction of the blind. Therefore, it is necessary to secure a certain dimension of the bending width to be engaged with the guide. For this reason, it is necessary to project the guide part on the back of the ceiling by the amount of the bent width. However, as is well known, there is little extra space on the ceiling of a passenger car, and it is desirable that such overhang be as small as possible.

Therefore, the present invention, in a retractable blind structure arranged in the skylight portion provided in the roof portion of the vehicle,
(1) Apply tension in the width direction of the blind when pulled out.
(2) The diameter when wound is reduced.
(3) Ensuring high durability that will not break even after repeated opening and closing.
(4) Reduce the area of the blind that remains unwound when wound.
(5) The projecting dimension of the guide portion protruding from the vehicle body surface and the back of the ceiling is reduced.
The purpose is to provide a structure that satisfies these requirements.

A vehicle ceiling blind system according to the present invention includes a winding shaft, a sheet-like blind having a multi-layer structure that can be wound around the winding shaft, an edge in the width direction of the blind, and a plate-shaped guided portion. a joint technique section that have a flexibility to connect, in a state in which the guide portion includes a engageable with the guide unit was wound blind winding shaft, connecting portions become substantially flat, guided portion It is located that surface on the blind side and substantially the same plane, the connecting portion and the thickness of the guide portion rather thin than blind thickness, and the thickness sum of the blind thicknesses of the guided portion of the connecting portion It is characterized by being thinner .

According to the present invention, since the guided portion is engaged with the guide portion, tension is given in the width direction of the blind, and slack when the blind is deployed can be suppressed. Moreover, since the thickness of the connecting portion and the guided portion can be reduced, the winding diameter when the blind is wound around the winding shaft can be reduced. Further, since the connecting portion can pursue the strength and durability, it is possible to ensure high durability that is not damaged even when the opening and closing are repeated. Moreover, since the connection part is comprised with the flexible cloth, the length of the twisted part of the connection part in the part which transfers to the state wound up from the state where the blind was pulled out can be shortened. For this reason, it is possible to reduce the area of the blind that remains without being wound when wound, and to increase the aperture ratio of the skylight. In addition, since the connecting portion can have a flexible structure, the surface of the guided portion can be parallel (or nearly parallel) to the ceiling surface when the blind is unfolded. For this reason, the dimension of the guide part protruding from the ceiling surface can be suppressed.

  In the present invention, in a state where the blind is pulled out from the winding shaft, the connecting portion is bent substantially vertically, and the guided portion is structured to engage the guide portion in a state where the surface is substantially parallel to the surface of the blind. desirable. According to this aspect, it is possible to realize reliable engagement with the guide portion and suppression of the projecting dimension of the guide portion from the ceiling surface.

In the present invention, employing a multi-layer structure to the blind. In the above-described conventional technique, since the blind body needs to be bent at the guide portion, the blind needs to be flexible enough to withstand it. For this reason, the use of a multilayer structure in which light shielding properties and heat shielding properties are pursued is limited. In contrast, in the present invention, the bent by the guide portion, because the blind is a connecting portion of another member, the blind adopts advantageous multilayer structure in order to pursue the light shielding property and heat insulation.

  In the present invention, the guide part is provided with a guide groove having a slit formed in the upper part and having a wide internal space. When the blind is pulled out from the take-up shaft, the guided part is accommodated in the internal space. It is desirable to have a structure in which combination is performed. According to this structure, since the elongated plate-shaped guided portion can be accommodated in the wide guide groove, the guide portion can be effectively stretched to the blind while minimizing the dimension in the thickness direction of the guide portion. Can do.

In the present invention, thinner than blind thickness the thickness of the connecting portion and the guided portion. According to the present invention , since the thickness of the overlapping portion between the blind and the connecting portion and the thickness of the overlapping portion between the connecting portion and the guided portion can be reduced, the thickness of the blind when the blind is wound and stored. Can be prevented from bulging outward. For this reason, the increase in the winding diameter in the state which wound up the blind can be suppressed. According to the present invention , since the thickness of the overlapping portion between the blind and the connecting portion and the thickness of the overlapping portion between the connecting portion and the guided portion can be reduced, the thickness of the blind when the blind is wound and stored. Can be prevented from bulging outward. For this reason, the increase in the winding diameter in the state which wound up the blind can be suppressed.

  In the present invention, the connection portion of the connecting portion with respect to the guided portion is arranged at the upper portion of the guided portion so that the cross-sectional shape forms an inverted T-shape together with the guided portion. According to this aspect, when the blind is wound around the winding shaft, the guided portion remains horizontal, and the connecting portion is bent at the connection portion between the connecting portion and the guided portion. Further, when the blind is pulled out and deployed from the state of being wound around the winding shaft, the bent connecting portion rises at the upper portion of the guided portion, and the connecting portion of the connecting portion with respect to the guided portion together with the guided portion. It transforms into an inverted T shape. This structure is effective for reducing the area of the blind that remains unrolled when wound because the guided portion that requires rigidity is not deformed.

  The present invention can also be grasped as a method for manufacturing a ceiling blind system. That is, a winding shaft, a sheet-like blind that can be wound around the winding shaft, a flexible connecting portion that connects the edge of the blind in the width direction and the plate-shaped guided portion, and a guided member And a guide part that can be engaged with each other, and in a state where the blind is wound around the take-up shaft, the connecting part is flat, and the guided part has a structure in which the surface is located on the same plane as the surface of the blind. A method of manufacturing a blind system for a ceiling of a vehicle having a step of sewing a guided portion and a joint portion in a line, a step of folding the joint portion at a stitched portion, and folding the joint portion in two, and a stitched portion And a step of connecting the half-folded connecting portion and the blind at a portion separated from the head.

  According to this manufacturing method, the connecting portion and the guided portion can be reliably connected with a simple method. For this reason, manufacturing cost can be reduced. Moreover, since the thickness dimension of the connection part of a connection part and a to-be-guided part does not become large, the increase in a winding diameter can be suppressed.

According to the present invention, by adopting a structure in which the guided portion that engages with the guide portion and the blind are connected via a flexible connecting portion,
(1) When pulled out, tension can be given in the width direction of the blind.
(2) The diameter at the time of winding can be made small.
(3) It is possible to ensure high durability that does not break even when the opening and closing are repeated.
(4) It is possible to reduce the area of the blind that remains without being wound when wound.
(5) The overhanging dimension of the guide portion protruding from the vehicle body surface and the ceiling can be reduced.
Such effects can be obtained.

1. Configuration FIG. 1 is a cross-sectional view (A), a partially enlarged cross-sectional view (B), and an enlarged view (C) showing a state where a blind is wound up, of a blind system using the present invention. FIG. 1A shows a cross-sectional structure viewed from the front or rear direction of the vehicle.

  The roof structure 101 includes a roof member 102 and a skylight 103. The roof member 102 is configured using, for example, a metal plate. Although not shown, the interior of the roof member 102 is decorated with a decorative finish in consideration of design, safety, and touch. The skylight 103 is fixed to the roof member 102 in a state of being fitted in an opening provided in the roof member 102. The skylight 103 is made of a material that transmits visible light, such as glass or acrylic resin. The skylight 103 may be colored without being transparent. Although FIG. 1 shows a type in which the skylight cannot be opened and closed, a structure that can be opened and closed may be used.

  FIG. 1A shows a state in which the blind 105 is unfolded and stretched on the indoor side 104 of the skylight. The blind 105 has a flexible cloth-like structure in which a cloth material, a resin film material, and a cloth material are laminated in three layers from the indoor side. The laminated structure of the blind 105 will be described later.

When the blind 105 is unfolded, both edges in the width direction engage with the guide portions 106a and 106b. FIG. 1B shows an enlarged state of the guide portion 106b. The guide part 106 b is fixed to the ceiling member 102 by a support part 107. A guide member 109 is disposed near the lower end of the support portion 107. The guide member 109 includes a guide groove 108 that extends along the front-rear direction of the vehicle body (the direction in which the blind 105 is pulled out / take-up), and that has a cross section that extends in the front-rear direction of the vehicle body and extends in the horizontal direction. ing. A slit-shaped opening 110 extending in the front-rear direction of the vehicle body is formed above the guide groove 108.

In a state where the blind 105 is unfolded, the guided portion 111 is accommodated in the guide groove 108 so as to be slidable in the extending direction of the guide groove 108. The guided portion 111 is a thin plate-like resin plate or metal plate having a thickness of about 0.08 to 1.0 mm and a width of about 5 to 20 mm, for example. The guided portion 111 has a strip shape (ribbon shape) extending along the edge in the width direction of the blind 105, and is connected to the blind 105 by a connecting portion 112. The guided portion 111 needs to be flexible enough to be wound in the longitudinal direction, but needs to be rigid enough not to come out of the guide groove 108 in the width direction.

  Since the guided portion 111 needs to slide in the guide groove 108, it is desirable that the guided portion 111 be made of a material having a small friction coefficient. In relation to this, it is desirable that the inner side of the guide member 109 is also made of a material having good slidability.

  The connecting portion 112 is a thin, folded fabric that has strength, flexibility, and elasticity (stretchability), and has a belt shape extending in the extending direction of the guided portion 111. As a material constituting the connecting portion 112, for example, polyester, nylon, or the like can be used. One edge of the connecting part 112 in the width direction is sewn to the guided part 111 and the other edge is sewn to the blind 105.

Further, the guided portion 111 and the connecting portion 112 are thinner than the blind 105. This is because, as will be described later, the blind 105 has a multilayer structure in order to ensure light-shielding properties and heat-shielding properties. For this purpose, the blind 105 needs to be thick, but the guided portion 111 is a metal plate or the like, so that the necessary rigidity is required. This is because the connecting portion 112 can be made of a thin fabric since it is sufficient to pursue flexibility and strength. By doing so, it is possible to suppress an increase in the thickness of the vicinity of the connecting portion between the blind 105 and the connecting portion 112 and the vicinity of the connecting portion of the connecting portion 112 and the guided portion 111 when wound.

2. Blind Structure FIG. 2 is a cross-sectional view showing a laminated structure of the blind 105. The blind 105 has a structure in which a surface layer 105a, an intermediate layer 105b, and a back layer 105c are laminated from the indoor side. Since the surface layer 105a is exposed to the inside of the vehicle, the surface layer 105a is composed of a woven fabric or a non-woven fabric that places importance on design. The intermediate layer 105b is made of a film-like resin material such as vinyl chloride in order to shield sunlight from heat and to ensure soundproofing. Since the back layer 105c is directly exposed to sunlight, a material that is less susceptible to deterioration and dimensional change due to exposure to sunlight and that excels in light shielding and heat shielding is selected. Specifically, a cloth made of a cloth having a fine structure with a plain weave and a fiber coated with silver coating is selected to increase the reflectance of the surface exposed to sunlight. Lamination is performed by performing sewing in a state where three layers are stacked. Here, an example of a three-layer structure is shown, but the number of layers is not limited to three.

3. FIG. 3 is a process cross-sectional view illustrating a connection structure between a guided portion made of a resin plate and a connection portion, and a connection structure between a connection portion and a blind. First, the fabric 301 constituting the joint portion 112 (see FIG. 1) is folded in half, and the center portion of the guided portion 111 made of a resin plate is aligned with the valley portion (FIG. 3A). Next, the folded trough portion of the fabric 301 and the guided portion 111 made of a resin plate are sewn and joined. Reference numeral 302 denotes a sewn portion (FIG. 3B). Next, the cloth 301 folded in half is completely folded and overlapped to obtain a state in which the connecting portion 112 is fixed to the guided portion 111 made of a resin plate (FIG. 3C).

  Next, the joint portion 112 is bent at a connection portion (sewn portion) to the guided portion 111 made of a resin plate, and the vicinity of the other edge is brought into contact with the blind 105 and overlapped. And both are combined by sewing. The part of the code | symbol 303 is a sewing part. Thus, the guided portion 111 made of a resin plate and the blind 105 are connected via the connecting portion 112 (FIG. 3D).

  When a metal plate is used as the guided portion 111, joining by sewing is not appropriate, and the following structure can be employed. FIG. 4 is a cross-sectional view illustrating a connection structure between a guided portion made of a metal plate and a connection portion, and a connection structure between the connection portion and a blind. In this example, the guided portion 111 made of a metal plate is wrapped with the cloth constituting the connecting portion 112 and is sewn at a portion 401. And the connection part 112 is piled up on the blind 105 in the part of the code | symbol 303, and both are connected by sewing.

4). Function In the state shown in FIGS. 1A and 1B, the connecting portion 112 bends 90 ° vertically downward at the portion indicated by reference numeral 112a, and the tip enters the guide member 109 through the opening 110. It is out. Since the flat guided portion 111 is connected to the tip of the connecting portion 112, the guided portion 111 can be caught in the guide groove 108 and engaged, so that the connecting portion 112 can no longer be pulled out from the guide member 109. . By utilizing the engagement of the guided portion 111 with the guide portion 106b, tension can be applied to the blind 105. In this state, the guide portion 106a is also asymmetric and has a similar structure.

  FIG. 1C shows a state where the blind is wound around the winding shaft from the state shown in FIG. In FIG. 1C, reference numeral 113 denotes a winding shaft. The take-up shaft 113 is supported by a vehicle body (not shown) so as to be rotatable by an axis 113a. The take-up shaft 113 is urged in the take-up direction by an urging means (not shown), and the blind 105 is taken up by the urging force. At this time, in the vicinity of the edge of the blind 105 in the width direction, the connecting portion 112 is deformed flat from the bent state. Further, due to this deformation, the connecting portion 112 and the guided portion 111 become parallel. In this state, since the guided portion 111 is located below the connecting portion 112, the thickness of the portion constituted by the blind 105, the connecting portion 112, and the guided portion 111 can be minimized. FIG. 1C shows a state in which the blind 105 is wound around the winding shaft 113, but actually, the blind 105 is wound around the winding shaft 113 in multiple layers. . Note that the blind can be wound or pulled out electrically.

5. Advantage of Embodiment According to the structure shown in FIG. 1, the guided portion 111 is caught and engaged with the guide groove 108 inside the guide portion 106 b. Since this structure is similarly performed at the edge portion on the opposite side of the blind 105, the blind 105 is pulled from the guide portions on both sides, and a tension in the width direction is applied. As a result, it is possible to give tension in the width direction to the blind made of a flexible material which does not have rigidity.

  Moreover, in the wound state, the connecting portion 112 and the guided portion 111 are horizontal, so that the thickness can be suppressed. In particular, since the connecting portion 112 does not need to pursue the function as a blind, it can be configured thinly. For this reason, the thickness in the wound-up state can be suppressed, and the winding diameter can be reduced.

Further, the blind 105 does not bent at an acute angle, it may be a multi-layer structure that prioritizes heat or light-shielding property shielding blind 105 as shown FIG. On the other hand, the connecting portion 112 can employ a material pursuing strength and durability. For this reason, it is possible to obtain high durability that is difficult to be damaged even if opening and closing is repeated while pursuing the function of the blind.

Since the connection part 112 can select the thing excellent in the softness | flexibility, in the part which transfers to the wound state shown in FIG.1 (C) from the expanded state shown in FIG.1 (B). The twist of the connecting portion 112 can be formed smoothly. For this reason, the length of the twisted portion can be shortened, and the area of the blind 105 that remains without being wound when wound is reduced. That is, the connection portion of the connecting portion 112 to the guided portion 111 is arranged at the upper portion of the guided portion 111 so that the cross-sectional shape viewed from the front-rear direction of the vehicle together with the guided portion 111 forms an inverted T shape. Yes. For this reason, when the blind 105 is wound around the winding shaft 113, the guided portion 111 remains horizontal, and the connecting portion 112 is bent at the connecting portion between the connecting portion 112 and the guided portion 111 (FIG. 1). (C) state). Further, when the blind 105 is pulled out and unfolded from the state of being wound around the winding shaft 113, the bent connecting portion 112 rises above the guided portion 111 (FIG. 1C to FIG. 1B). 1), the vicinity of the connection portion of the connecting portion 112 with respect to the guided portion 111 is deformed into an inverted T-shape together with the guided portion 111 (state shown in FIG. 1B). This structure is effective for reducing the area of the blind 105 that remains unwound when wound, because the guided portion 111 that requires a certain degree of rigidity is not deformed. For these reasons, a large opening of the skylight can be secured. In addition, by configuring the connecting portion 112 with a resilient material, the blind 105 can be effectively stretched, and further, a slight dimensional deviation or wear between the guided portion 111 and the guide groove 108 can be prevented. The resulting play can be absorbed.

  As shown in FIG. 1B, since the guided portion 111 engages in the guide groove 108 in a horizontal state, the strength in the guided state can be ensured, and at the same time, the guide portion 106b (106a). ) Can be minimized. For this reason, the overhang | projection dimension in the ceiling part in a vehicle can be made small.

6). Modification of Embodiments In the unfolded state of the blind 105, a structure in which the surface of the guided portion 111 illustrated in FIG. For example, depending on the design of the vehicle, the vicinity of the periphery of the ceiling may be curved. In such a case, according to the curved state of the ceiling, the guide groove 108 can be inclined so as to be as parallel as possible to the ceiling surface, and the guided portion 111 can be engaged therewith. In this case, the surface of the guided portion 111 is not parallel to the surface of the blind 105. In the present invention, since the connecting portion 112 can have a flexible structure, it is possible to easily cope with such a deformed structure.

  INDUSTRIAL APPLICABILITY The present invention can be used for a blind opening / closing structure disposed in a skylight of a vehicle such as a passenger car, a bus, or a truck.

It is sectional drawing (A) of a blind mechanism using invention, a partial expanded sectional view (B), and the enlarged view (C) which shows the state which wound up the blind. It is sectional drawing which shows the laminated structure of a blind. It is process sectional drawing which shows the junction structure of a to-be-guided part and a connection part, and the junction structure of a connection part and a blind. It is sectional drawing which shows the connection structure of the to-be-guided part which consists of metal plates, and a connection part, and the connection structure of a connection part and a blind. It is a conceptual diagram which shows the cross-section of the storage location of the blind in a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Passenger car roof structure, 102 ... Roof member, 103 ... Skylight, 104 ... Indoor side of skylight, 105 ... Blind, 106a ... Guide part, 106b ... Guide part, 107 ... Support part, 108 ... Guide groove, 109 ... Guide 110, opening portion, 111, guided portion, 112, connecting portion, 112a, bent portion, 113, winding shaft.

Claims (4)

A winding shaft;
A sheet-like blind having a multilayer structure that can be wound around the winding shaft;
A joint technique section that have a flexibility of connecting the edge and the plate-shaped guided portion in the width direction of the blind,
A guide portion engageable with the guided portion,
In the state where the blind is wound around the winding shaft, the connecting portion is substantially flat, and the guided portion is positioned on the same plane as the surface of the blind,
The connecting portion and the thickness of the guide portion rather thin than the thickness of the blind, and the ceiling of the vehicle, wherein the thickness of the connecting portion is the sum of the thickness of the guide portion, characterized in that thinner than the thickness of the blind For blind system.   In a state where the blind is pulled out from the winding shaft, the connecting portion is bent substantially vertically, and the guided portion is engaged with the guide portion in a state where the surface thereof is substantially parallel to the surface of the blind. The blind system for a ceiling of a vehicle according to claim 1. The guide portion includes a guide groove having a slit formed in an upper portion and a wide internal space,
In a state where the blind is pulled out from the winding shaft,
The vehicle blind system according to claim 1, wherein the engagement is performed when the guided portion is accommodated in the internal space.   2. The connecting portion of the connecting portion with respect to the guided portion is disposed at an upper portion of the guided portion so that a cross-sectional shape forms an inverted T-shape together with the guided portion. The blind system for a vehicle according to any one of?

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