Roller blinds for car shades, including height-adjustable screens

Abstract

To provide a car shade roller blind that prevents generation of wrinkles in the process of lifting and lowering the screen of the roller blind, particularly in the process of the screen being wound up around a take-up roll and that is configured to always wind up the screen at same heights even if there are differences from each other in the heights of the upper ends of the screen wound up in a roll case.SOLUTION: High reliability on a product can be ensured because a screen is quickly and smoothly pulled into a roll case in a process of being wound up around a take-up roll due to a compensation patch removably provided on a side of the screen, the side having a higher upper end.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a roll blind for car shades, and more particularly to a roll blind for car shades including a screen with a height correction function that prevents wrinkles from occurring during the process of raising and lowering the screen of the roll blind, especially during the process of winding the screen onto a winding roll, and ensures that the screen is always wound up at the same height even when the upper ends of the screen drawn into the roll case have different height deviations.

[0002] [Background technology]

[0003] Various methods are used as shade means for blocking sunlight entering through vehicle window glass, and it is common to coat the window glass with a semi-transparent, tinted film-like solar radiation control film.

[0004] On the other hand, the method of coating the solar radiation adjustment film has limitations in terms of blocking strong sunlight in summer, so in reality, a method of attaching and detaching an additional mesh-like shade member to the window glass using an adsorption device is also used in parallel.

[0005] However, the method of attaching and detaching a shade member to a window pane is not only cumbersome, but also requires that the shade member be removed and stored separately when not in use, which is troublesome.

[0006] In particular, when the window glass is opened with the shade member attached to it, there is a problem that the shade member may become detached from the window glass.

[0007] In order to solve these problems, roll blinds have been used in the past, which shade sunlight by moving up and down together with the window glass provided in the door of the vehicle.

[0008] A typical vehicle roll blind has a structure including a support shaft with at least one clip formed on the upper end of the screen so that the screen can be pulled out from a take-up roll rotatably mounted inside a roll case and hung over the upper end of the window glass.

[0009] A conventional spiral spring is connected to one or both ends of the winding roll to wind or unwind the screen.

[0010] As mentioned above, as a conventional prior art related to roll blinds applied to vehicle windowpanes, Korean Patent Publication No. 10-1568300 (hereinafter referred to as 'Prior Art Document 1') discloses a technology for a fixing device for roll blinds for car shades, which allows roll blinds to be simply and easily installed on the inner panel of a vehicle window.

[0011] In addition, Korean Patent Publication No. 10-1568298 (hereinafter referred to as 'Prior Art Document 2') discloses technology for a noise prevention device for roll blinds for car shades, which prevents noise generated by friction between the roll blinds installed on the window glass and the window glass.

[0012] Furthermore, Korean Patent Publication No. 10-2017-0030942 (hereinafter referred to as 'Prior Art Document 3') discloses a technology for a roll blind vibration prevention structure in which the center of the shaft gradually rises due to slack in the fabric (corresponding to the 'screen'), making it possible to set the same amount of pressure on the fabric at all times regardless of the position of the roll blind.

[0013] However, since the upper end of the vehicle window glass is curved from one side to the other, the height of the upper end of the roll blind screen is also formed at different heights. As a result, when the screen is wound up on the winding roll in the roll box, the upper end of the screen is not completely inserted at the same height, which causes a problem that one end of the screen on the higher side is exposed.

[0014] In order to solve this problem, a method has been proposed in which a trapezoidal or cylindrical correction means is attached to the high height side of the screen when it is wound onto the winding roll, thereby correcting the uneven height. However, this method has a problem in that wrinkles occur in the screen due to the difference in thickness between the part of the winding roll where the correction means is attached and the part where the correction means is not attached.

[0015] This poses the problem that when the screen is wound up on the winding roll, the wrinkles prevent the screen from being smoothly wound up and pulled into the roll case.

[0016] On the other hand, in addition to the above-mentioned vehicle roll blinds, there are prior art techniques for correcting wrinkles and height of the screen for roll screen blinds used for shade in buildings, as described below.

[0017] Korean Utility Model Publication No. 20-0416544 (hereinafter referred to as 'Prior Art Document 4') discloses a technology in which a buffer support layer is included in a winding roll to prevent wrinkles during the winding process of the screen.

[0018] Furthermore, Japanese Patent Publication No. 5784983 (hereinafter referred to as 'Prior Art Document 5') discloses a technology in which a winding shaft (corresponding to a 'winding roll') around which a screen is wound includes a cylindrical adjustment member with one open side that can slide in the axial direction of the winding shaft.

[0019] Furthermore, Japanese Patent Publication No. 5798263 (hereinafter referred to as 'Prior Art Document 6') discloses a technology in which a guide section consisting of a convex guide and a concave guide is provided on both ends of a screen where the screen is wound up and unwound onto a winding shaft (corresponding to a 'winding roll').

[0020] However, the above-mentioned prior art documents 4 to 6 are used in buildings having a relatively large volume, and have a complicated technical configuration, which is not suitable for application to roll blinds in vehicles having a small volume.

[0021] [Prior art documents] [Patent documents]

[0022] [Patent Document 1] Republic of Korea Patent Publication No. 10-1568300 [Patent Document 2] Republic of Korea Patent Publication No. 10-1568298 [Patent Document 3] Republic of Korea Patent Publication No. 10-2017-0030942 [Patent Document 4] Republic of Korea Registered Utility Model Publication No. 20-0416544 [Patent Document 5] Japanese Patent No. 5784983 [Patent Document 6] Japanese Patent No. 5798263 Summary of the Invention Problem to be solved

[0023] The object of the present invention is to solve the above-mentioned problems and to provide a roll blind for car shades, which includes a screen with a height correction function that prevents the occurrence of wrinkles in the process of raising and lowering the screen of the roll blind, especially in the process of winding the screen onto the winding roll, and ensures that the screen is always wound up at the same height even when the upper ends of the screen drawn into the roll case have different height deviations.

[0024] Another object of the present invention is to provide a roll blind for a car shade, including a screen with a height adjustment function that allows the screen to be freely attached and detached to a desired position.

[0025] It is still another object of the present invention to provide a roller blind for a car shade, which includes a screen with a height compensation function that can be selectively used according to the deviation of the thickness of the screen wound on the winding roll.

[0026] Means to solve the problem

[0027] A specific technical problem to be solved by the present invention for solving the specific technical problem described above is a roll blind including a screen with a height correction function so that when the screen is lifted together with a window glass of a vehicle door and then wound up onto a take-up roll in a roll case, the screen can be wound up at the same height even if both upper ends have different height deviations, and the height correction of the screen is performed by a correction patch that is detachably provided on the side of the screen with the higher upper end during the process of being wound up onto the take-up roll.

[0028] The correction patch includes a correction pad made of a flexible material that is attached to the screen to correct the height, and an adhesive part that is detachably provided on the rear surface of the correction pad from the screen.

[0029] The compensation pad may be formed to have a uniform thickness or may be formed to have a thickness that increases from one end to the other end.

[0030] The adhesive portion is either an adhesive applied to the rear surface of the correction pad or a double-sided tape removably attached thereto.

[0031] The correction patch has one of a triangular shape, a rectangular shape, a diamond shape, and a trapezoid shape.

[0032] Effect of the Invention

[0033] The present invention prevents the occurrence of wrinkles in the process of raising and lowering the screen of a roll blind, particularly in the process of winding the screen onto the winding roll, and ensures that the upper end of the screen pulled into the roll case is always wound up at the same height even when there are different height deviations between the upper ends of the screen. This allows the screen to be pulled into the roll case quickly and smoothly, and ensures high product reliability.

[0034] Furthermore, the present invention has the advantage that the height can be correctly corrected by allowing the screen to be freely attached and detached at any desired position, and that the invention can be applied to existing roll blinds, thereby providing excellent compatibility.

[0035] Furthermore, the present invention can be selectively used in response to deviations in the thickness of the screen wound onto the winding roll, thereby allowing for more precise and accurate correction of the height of the screen.

[0036] [Brief description of the drawings]

[0037] [Figure 1] 1 is a front view showing a vehicle roller blind to which the present invention is applied; [Diagram 2] FIG. 2 is a side view of FIG. [Diagram 3] FIG. 2 is a front view for explaining a state in which the present invention is used. [Figure 4] 1A-1D are front views illustrating various embodiments of the correction patch of the present invention. Specific details for carrying out the invention

[0038] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited or restricted by the embodiments.

[0039] As shown in the drawings, a typical vehicle roll blind 100 is installed on a door window glass to provide a shade, and has a structure including a support shaft with at least one clip formed on the upper end of the screen so that the screen 110 wound on a take-up roll 120 rotatably installed in a roll case 130 can be pulled out and hung on the upper end of the window glass. Both ends of the roll case are attached to an inner panel by a typical bracket, housing, etc.

[0040] The roll case is usually provided inside the inner panel of the door, and in some cases, is attached to the upper end of the inner panel.

[0041] In addition, a normal spiral spring is connected to one or both ends of the winding roll to wind and unwind the screen, or a gear meshing method is applied.

[0042] However, as described in the Background Art section above, due to the characteristics of the window glass, the upper ends of the screen of a roll blind provided on the window glass of a vehicle are biased at different heights.

[0043] As a result, when the screen is wound onto the take-up roll in the roll case, the upper end of the screen is not retracted at the same height, and the screen on the higher side is not retracted, which is an inconvenience.

[0044] The present invention aims to provide a roll blind for car shades, which includes a screen with a height correction function, which prevents the occurrence of wrinkles in the process of raising and lowering the screen of the roll blind, particularly in the process of winding the screen onto a winding roll, and ensures that the screen is always wound up at the same height even when the upper ends of the screen drawn into the roll case have different height deviations.

[0045] In the car shade roller blind 100 according to the present invention, the height of the screen 110 is corrected by a correction patch 10 which is detachably provided on the side of the screen 110 having the higher upper end while the screen 110 is being wound onto the winding roll 120.

[0046] The correction patch 10 rises together with the window glass, and then descends while being wound onto the winding roll 120. Since the correction patch 10 is attached to the high side of the screen 110, the correction patch corrects only the height of the screen 110.

[0047] As a result, the upper end of the screen is wound onto the winding roll without any deviation in height.

[0048] Here, the shape of the correction patch will be described later. In the case where the correction patch is formed in a right-angled triangular shape having an area that gradually decreases from one side to the other side by an amount corresponding to the height deviation on both sides of the upper end of the screen, the screen with the correction patch is wound up to a uniform thickness when it is wound up on a take-up roll.

[0049] As a result, when the screen 110 is wound onto the winding roll 120, even with the correction patch 10 attached, wrinkles are not generated, and the upper end of the screen 110 does not protrude outside the roll case 130, but is retracted at the same height.

[0050] This is one of the key factors in ensuring high product reliability for roller blinds.

[0051] Furthermore, since the occurrence of wrinkles is not induced when the film is wound onto the winding roll, the film can be quickly and smoothly wound onto the roll case.

[0052] In particular, the correction patch of the present invention is detachable from the screen, and can be applied to any part of the screen, as well as easily applied to any existing roll blinds, providing excellent compatibility and convenience for even non-experts to use easily.

[0053] Therefore, the present invention does not have a complex technical configuration, but rather uses a correction patch that can be easily attached and detached from the screen to perform height correction in accordance with the height deviation that occurs in the process of winding the screen onto the winding roll, thereby ensuring that the upper end of the screen wound onto the winding roll is always wrapped at the same height.

[0054] The correction patch 10 includes a correction pad 10A made of a flexible material that is attached to the screen 110 with a predetermined thickness to correct the height, and an adhesive portion 10B that is detachably provided on the back surface of the correction pad 10A from the screen 110.

[0055] The flexible correction pad 10A may be made of a normal fiber material that allows the pad to be smoothly wound or pulled out from the winding roll 120, or may be made of a synthetic resin.

[0056] The correction pad 10A is for correcting the thickness of the screen 110 wound around the winding roll 12 to correct the height of the screen, and is either formed to the same thickness or to have a thickness that gradually increases from one end to the other end. The correction pad is formed to have a thickness that gradually increases from one end to the other end in order to perform precise correction on the height side of the screen.

[0057] In addition, the adhesive portion 20B is either an adhesive applied in a conventional manner to the rear surface of the correction pad 10A or a double-sided tape removably attached to the rear surface of the correction pad 10A. When an adhesive is applied to the correction pad, a conventional release sheet is attached to the surface to which the adhesive is applied, and is peeled off when the correction pad is used.

[0058] Thereby, the correction patch suitable for the screen conditions, that is, the deviation in height or the thickness wound on the winding roll, can be selectively used, and the optimum conditions can be satisfied.

[0059] This prevents wrinkles when the screen is wound onto the winding roll, ensures that the upper end of the screen is always wound at the same height, and also allows the screen to be smoothly pulled into the roll case.

[0060] FIG. 4 is a front view illustrating various embodiments of the correction patch of the present invention.

[0061] As shown in FIG. 4, in the above-described configuration, the correction patch is part of the means for correcting the height of the screen and can be provided in various shapes.

[0062] The correction patch 10 can be provided in various shapes according to the deviation of the height of the top edge of the screen 110, and can be any one of a triangular shape, a rectangular shape, a diamond shape, and a trapezoid shape.

[0063] Of the triangular shapes, as described above, a right triangular shape due to the height deviation from one side of the upper end of the screen to the other side is preferable.

[0064] Furthermore, by making the thickness as well as the shape different as a whole, the height correction can be performed more accurately.

[0065] In addition to the above shapes, it goes without saying that the user can cut or cut the screen into various shapes according to the deviation of the screen height.

[0066] Therefore, by attaching and using a correction patch of an appropriate shape according to the deviation in height of the top edge of the screen, the height of the screen can be corrected more precisely and accurately.

[0067] [Explanation of symbols]

[0068] 10: Correction patch 10A: Correction pad 10B: Adhesive part 100: Roller blinds 110: Screen 120: Winding roll 130: Roll case

Claims

1. A roller blind including a screen with a height correction function so that the screen can be wound up at the same height even when both upper ends have different height deviations when the screen is lifted together with the window glass of a vehicle door and then wound up on a winding roll in a roll case, The height correction of the screen is performed by a correction patch that is detachably provided on the side of the screen having a higher upper end during the process of winding the screen onto the winding roll, A roll blind for car shade including a screen with a height correction function, characterized in that the correction patch becomes gradually narrower from one side to the other according to the deviation of the height of the upper end of the screen.

2. The correction patch is attached to the screen and has a correction pad made of a flexible material for correcting the height. An adhesive portion provided on a rear surface of the correction pad so as to be detachable from the screen; A roll blind for a car shade comprising the screen with height correction function according to claim 1.

3. 3. The car shade roll blind including a screen with height correction function according to claim 2, wherein the correction pad is either formed to a uniform thickness or formed to have a thickness that increases from one end to the other end.

4. 3. The car shade roll blind including a screen with height correction function according to claim 2, wherein the adhesive portion is either an adhesive applied to the back surface of the correction pad or a double-sided tape removably attached thereto.

5. 3. The car shade roll blind including a screen with height correction function according to claim 1, wherein the correction patch is either triangular or trapezoidal.

6. A roller blind including a screen with a height correction function so that the screen can be wound up at the same height even when both upper ends have different height deviations when the screen is lifted together with the window glass of a vehicle door and then wound up on a winding roll in a roll case, The height correction of the screen is performed by a correction patch that is detachably provided on the side of the screen having a higher upper end during the process of winding the screen onto the winding roll, The correction patch includes a correction pad made of a flexible material that is attached to the screen to correct the height, and an adhesive part that is detachably provided on a rear surface of the correction pad from the screen, The adhesive portion is either an adhesive applied to the back surface of the correction pad or a double-sided tape removably attached to the back surface of the correction pad.

7. 7. The car shade roll blind including a screen with height correction function according to claim 6, wherein the correction pad is either formed to a uniform thickness or formed to have a thickness that increases from one end to the other end.

8. 8. The roll blind for car shade including a screen with height correction function according to claim 6 or 7, wherein the correction patch has any one of a triangular shape, a rectangular shape, a rhombus shape, and a trapezoidal shape.

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