sunshade

Abstract

To solve the problem in which: a conventional sunshade may be detached when wind blows into a gap between a windshield glass and the sunshade.SOLUTION: A sunshade 1 includes: a shade body 2 for covering a front surface of a windshield glass W of a vehicle V; a sticking member 3 disposed on a back surface of the shade body 2; a slit 4 communicating in a thickness direction of the shade body 2; and a flap 5 disposed on a front surface of the shade body 2, wherein the flap 5 has a fixed portion 5A and a movable portion 5B for opening / closing the slit 4, and wherein the sticking member 3 is disposed on a tip side of the movable portion 5B of the flap 5 in a plan view. The sticking member 3 is adhered to the windshield glass W while wind entering a gap between the windshield glass W and the sunshade is released to the outside by means of the slit 4 and the flap 5. Thus, a properly attached state is maintained even under strong wind.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sunshade that is attached to the front of an automobile windshield to block sunlight. [Background technology]

[0002] An example of a conventional sunshade is described in Patent Document 1. The sunshade described in Patent Document 1 has a structure that includes a sheet that can be folded in a zigzag shape, and micro-suction cup sheets that adhere to the window glass of a vehicle are provided on both ends of the sheet when it is unfolded. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 4-48397 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with conventional sunshades such as those described above, when strong winds hit the vehicle, there is a risk that wind will get into the gap between the windshield glass and the sheet, causing the sheet to come off, and solving this problem was an issue that needed to be addressed.

[0005] The present invention has been made in view of the above-mentioned conventional problems, and aims to provide a sunshade that can maintain a correct attachment state even in strong winds by tightly adhering an adsorption member to the windshield glass while allowing wind that has entered the gap between the windshield glass to escape to the outside. [Means for solving the problem]

[0006] The sunshade of the present invention is an external type sunshade that is attached to the front of an automobile windshield. This sunshade comprises a shade body that covers the windshield, an attraction member arranged on the back side of the shade body, a slit that runs through the thickness of the shade body, and a flap arranged on the front side of the shade body. The sunshade has a flap with a fixed part fixed to the front side of the shade body and a movable part that opens and closes the slit with elastic deformation, and the attraction member is arranged on the tip side of the movable part of the flap in a plan view. The suction member is disposed along at least a part of the peripheral edge of the shade body, and the slit and the flap are disposed along the suction member. It is characterized by the fact that [Effects of the Invention]

[0007] In the sunshade of the present invention, when wind blows into the gap between the windshield glass and the shade body, the wind pushes up the movable part of the flap through the slit and is discharged along the front of the shade body. At this time, because the sunshade has an attraction member located on the tip side of the movable part of the flap in a plan view, the wind flowing along the front of the shade body presses the shade body toward the attraction member, maintaining or increasing the attraction force of the attraction member to the windshield glass.

[0008] In this way, the sunshade according to the present invention can maintain a correct attachment state even in strong winds by tightly adhering the suction member to the windshield glass while allowing wind that has entered the gap between the windshield glass to escape to the outside. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view illustrating a state in which a sunshade according to a first embodiment of the present invention is attached to an automobile. [Figure 2] FIG. 2 is a plan view of the sunshade shown in FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] 4 is a cross-sectional view showing a state in which the flap opens the slit from the state shown in FIG. 3. FIG. [Figure 5] FIG. 4 is a cross-sectional view of a main part illustrating a second embodiment of a sunshade according to the present invention. [Figure 6] 1A is a plan view showing a first comparative example of a sunshade, and FIGS. 1B to 1G are plan views showing third to eighth embodiments, respectively. [Figure 7] 10A is a plan view showing a second comparative example of the sunshade, and FIGS. 10B to 10E are plan views showing ninth to twelfth embodiments, respectively. [Figure 8] 13A is a plan view showing a third comparative example of the sunshade, FIG. 13B is a plan view showing a thirteenth embodiment, FIG. 13C is a plan view showing a fourth comparative example, and FIG. 13D is a plan view showing a fourteenth embodiment. [Figure 9] 13A is a plan view showing a fifth comparative example of the sunshade, FIG. 13B is a plan view showing a fifteenth embodiment, and FIG. 13C is a plan view showing a sixteenth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] First Embodiment The sunshade 1 shown in Figure 1 is an external type that is attached to the front of the windshield glass (symbol W in Figure 3) of an automobile V, and as is well known, it blocks sunlight and prevents the temperature inside the vehicle from rising.

[0011] 2, the sunshade 1 comprises a shade body 2 that covers the windshield glass W, an adsorption member 3 arranged on the back surface of the shade body 2 (the surface facing the windshield glass), a slit 4 that communicates in the thickness direction of the shade body 2, and a flap 5 arranged on the front surface of the shade body 2 (the surface that receives sunlight). The flap 5 has a fixed part 5A fixed to the front surface of the shade body 2 and a movable part 5B that is a free end that opens and closes the slit 4 with elastic deformation, and functions like a check valve in the direction from the slit 4 to the outside.

[0012] In the sunshade 1, the adsorption member 3 is disposed on the tip side of the movable part 5B of the flap 5 in a plan view. That is, in the cross section of the sunshade 1 in the thickness direction shown in Fig. 3, the adsorption member 3 is disposed on the tip side (left side in Fig. 3) of the movable part 5B.

[0013] As a more preferred embodiment, the above-mentioned sunshade 1 can adopt a configuration in which the adsorption member 3 is arranged along at least a part of the peripheral edge of the shade main body 2, and the slit 4 and the flap 5 are arranged along the adsorption member 3.

[0014] The sunshade 1 shown in the figure has a roughly rectangular shade body 2, with strip-shaped attraction members 3 arranged along each side at five locations: two on the left and right of the top edge, the center of both vertical sides, and the center of the bottom edge. The sunshade 1 also has slits 4 and flaps 5 arranged along the inside of each attraction member 3 (toward the center of the shade body) on the shade body 2. The flap 5 is strip-shaped and covers the entire slit 4 on the front of the shade body 2.

[0015] The sunshade 1 has at least one combination of a slit 4 and a flap 5, and at least one of the flaps 5, i.e., the two flaps 5 on the left and right sides of the upper edge, is configured so that the tip of the movable part 5B faces upward toward the windshield glass W. In most cases, the windshield glass W of an automobile is tilted backward, so the upward direction of the glass faces the rear of the automobile.

[0016] In addition, the flaps 5 at the centers of both vertical sides of the sunshade 1 are arranged so that the tips of the movable parts 5B face in mutually opposite directions. As a result, the sunshade 1 includes a plurality of combinations of slits 4 and flaps 5, and includes a configuration in which the tips of the movable parts 5B of the flaps 5 in each set face in mutually different directions.

[0017] Furthermore, the above sunshade 1 is arranged so that the tip of the movable part 5B of the flap 5 at the center of the lower side faces downward toward the windshield glass W. As a result, the above sunshade 1 includes a plurality of combinations of slits 4 and flaps 5, and includes a configuration in which the tip of the movable part 5B of each set of flaps 5 faces in the in-plane direction (direction along the surface) from the center of the windshield glass W and in at least four directions: up, down, left, and right.

[0018] The material of the shade body 2 is not limited as long as it has light-blocking properties, but examples include plastic, metal, cloth, etc. The shade body 2 can also be provided with an appropriate decorative design on its front surface.

[0019] It is also desirable that the solar reflectance of the surface side of the shade body 2 is 50% or more. Furthermore, the shade body 2 can be provided with a notch at a position corresponding to a functional part of the automobile V, and in the embodiment shown in Fig. 1, a notch 6 is formed at a position corresponding to the camera (functional part) of the drive recorder. Other functional parts include a rain sensor, etc.

[0020] The material of the attraction member 3 is not limited, but suitable examples include an electrostatic attraction material that attracts by static electricity, and a suction cup material having minute recesses on the surface, so-called a micro-suction cup sheet.

[0021] In a more preferred embodiment, the length of the slit 4 is 10 to 80% of the length of one side of the shade body 2 adjacent to the slit 4, and the ratio of length to width can be 3 to 50.

[0022] The flap 5 is a thin plate member integrally having a fixed portion 5A and a movable portion 5B. The material of this flap 5 is not particularly limited as long as it is elastically deformed by wind pressure when the fixed portion 5A is fixed as shown in Fig. 3, but a suitable material is silicone rubber. The flap 5 is fixed to the shade body 2 with an adhesive or the like. The black triangle in Fig. 3 indicates that the flap 5 is fixed, but does not indicate the fixing means or the fixed range.

[0023] Furthermore, the flap 5 only needs to be of a size and thickness that allows it to open and close the slit 4 with elastic deformation. If the flap 5 is too large, it may be blown around by strong winds, so it is desirable that the size of the flap 5 be such that, for example, the tip of the movable part 5B overlaps the adsorption member 3 in a plan view. Furthermore, the surface of the flap 5 can be provided with a layer that has the same light-blocking properties as the shade main body 2, or can be provided with the same color or pattern as the shade main body 2.

[0024] As shown in Figure 3, the sunshade 1 having the above configuration can be installed by simply covering the front surface (top surface in the figure) of the windshield glass W with the shade body 2 and adsorbing the adsorption member 3 to the windshield glass W, thereby blocking sunlight and preventing the temperature inside the vehicle cabin from rising.

[0025] In the above-described sunshade 1, when wind blows into the gap between the windshield glass W and the shade main body, the wind pushes up the movable part 5A of the flap 5 through the slit 4, as shown by the arrow in Figure 4, and is discharged along the front of the shade main body 2. At this time, because the sunshade 1 has the adsorption member 3 disposed on the tip side of the movable part 5B of the flap 5 in a plan view, the wind flowing along the front of the shade main body 2 presses the shade main body 2 toward the adsorption member 3, maintaining or increasing the adsorption force of the adsorption member 3 on the windshield glass W.

[0026] In this way, the sunshade can maintain a proper fit even in strong winds by tightly adhering the attracting member 3 to the windshield glass W while allowing wind that has entered the gap between the sunshade and the windshield glass W to escape to the outside. The sunshade 1 can be easily removed by peeling the attracting member 3 off the windshield glass W.

[0027] Furthermore, the sunshade 1 has the adsorption member 3 arranged along at least a portion of the periphery of the shade main body 2, and the slits 4 and flaps 5 arranged along the adsorption member 3. As a result, the sunshade 1 has a structure in which the adsorption member 3, slits 4 and flaps 5 are arranged along the periphery of the shade main body 2, so that it can maintain its original function of blocking light, and can also be folded and stored, making it easy to handle.

[0028] Furthermore, the exterior shape of the automobile V is designed with consideration given to the airflow it receives while traveling, so the airflow from front to rear is relatively smooth. Therefore, although the wind direction is not constant, the air that has entered the gap between the windshield glass W and the shade body 2 also tends to flow from front to rear. Therefore, by orienting the movable portion 5B of at least one flap 5 above the windshield glass W, the sunshade 1 described above can smoothly discharge air that has entered the gap with the windshield glass W through the slits 4 and the flap 5 while maintaining the suction force of the suction member 3.

[0029] Furthermore, the sunshade 1 has multiple combinations of slits 4 and flaps 5, and by arranging the flaps 5 of each set with the tip directions of the movable parts 5B facing in different directions, it is possible to exhaust air that has entered the gap with the windshield glass W in multiple directions while maintaining the suction force of each suction member 3.

[0030] Furthermore, the sunshade 1 has multiple combinations of slits 4 and flaps 5, and by arranging the flaps 5 so that the tip direction of the movable part 5B is in-plane from the center of the windshield glass W and faces in at least four directions (up, down, left, right), it is possible to exhaust air that has entered the gap with the windshield glass W in four directions (up, down, left, right), while maintaining the suction force of each suction member 3.

[0031] Furthermore, by making the length of the slit 4 in the above-mentioned sunshade 1 10 to 80% of the length of one side of the shade main body 2 adjacent to the slit 4, the strength and shape stability of the shade main body 2 can be maintained while obtaining the function of expelling wind that has entered the gap with the windshield glass W and the function of pressing the adsorption member 3 with the expelled airflow.

[0032] Furthermore, by setting the ratio of the length to the width of the slit 4 to 3 to 50, the sunshade 1 can obtain the wind exhaust function and the pressing function of the adsorption member 3 while maintaining the strength and shape stability of the shade body 2.

[0033] Furthermore, the sunshade 1 described above uses silicone rubber as the material for the flap 5, which has the advantages of being weather resistant, easily ensuring the appropriate elasticity to open and close the slit 4 due to wind pressure, and being inexpensive.

[0034] Furthermore, if an electrostatic adsorption material that adheres by static electricity or a suction cup material with fine recesses on the surface is used as the adsorption member 3 of the above sunshade 1, it can be made into a sheet-like adsorption member 3 that can be repeatedly attached and detached.By using such an adsorption member 3, it is possible to make the shade body 2 thinner and improve its storability.

[0035] Furthermore, the above-mentioned sunshade is effective for application to a windshield glass W made of double-glazed glass. Double-glazed glass has an adhesive layer made of a material such as polyvinyl butyral (PVB) between the two panes of glass, and may also have a special metal film on the inner surface of the outer pane. Therefore, if the adsorption member 3 is attached to the outer surface of the outer pane, only the outer pane may thermally expand, potentially causing thermal cracking. Therefore, the above-mentioned sunshade 1 prevents excessive heat buildup on the outer pane by setting the solar reflectance of the front surface of the shade body 2 to 50% or more, thereby protecting the double-glazed glass from heat. Note that solar reflectance is the "solar reflectance" defined in JIS-K5602:2008.

[0036] Furthermore, the sunshade 1 described above has a cutout 6 in the shade body 2 that corresponds to the functional part of the automobile V, so the function of the functional part can be maintained when the sunshade 1 is attached to the windshield glass W. In other words, the sunshade 1 of the above embodiment has the cutout 6 in a position that corresponds to the camera (functional part) of the drive recorder, so when the camera is operated for security purposes, the function of the camera is not hindered.

[0037] Second Embodiment Figure 5 is a diagram illustrating a second embodiment of a sunshade according to the present invention. The sunshade 1 of this embodiment has the same basic configuration as the first embodiment, and has a structure in which the slits 4 communicate in the thickness direction of the shade main body 2 with their edges aligned with the ends of the adsorption members 3 in a plan view. In other words, in the cross section of the sunshade 1 shown in Figure 5, the edges of the slits 4 on the outer side of the shade (left side in the figure) and the end of the adsorption member 3 on the shade center side (right side in the figure) are aligned in the vertical direction (up and down direction in the figure).

[0038] In the sunshade 1 having the above configuration, the adsorption member 3 is interposed before the slit 4 in the gap with the windshield glass W, eliminating any space, so wind that enters the gap does not stagnate, but pushes up the flap 5 from the slit 4 and flows out to the surface side of the shade body 2. As a result, the sunshade 1 tightly adheres the adsorption member 3 to the windshield glass W while smoothly allowing wind that enters the gap with the windshield glass W to escape to the outside, maintaining the correct attachment state even in strong winds.

[0039] 6 to 9 are diagrams showing first to fourth comparative examples and third to sixteenth embodiments of the sunshade according to the present invention. In each of the following embodiments, the suction member 3 and the slit 4 are shown, but the flap (5) is omitted, and the arrows in each figure indicate the direction of the airflow discharged from the slit 4. In other words, the direction of each arrow is also the direction of the movable part (5B) of the flap (not shown).

[0040] In the first to fifth comparative examples and the third to sixteenth embodiments, a square sunshade 1 manufactured for testing was attached to a glass plate, and air was blown from below, increasing the wind speed until the sunshade 1 was detached from the glass plate. The wind speed (m / s) at which the sunshade 1 was detached is shown at the bottom of each figure as the wind resistance value. The wind resistance of the sunshade described in the first embodiment (see FIG. 2) was 21 m / s.

[0041] Third to Eighth Embodiments The sunshade 1 shown in Fig. 6 has adsorption members 3 arranged along the top and bottom sides. The sunshade 1 of the first comparative example shown in Fig. 6(A) has only adsorption members 3. The sunshade 1 of the third embodiment shown in Fig. 6(B) has slits 4 and flaps arranged at predetermined intervals below each adsorption member 3. The sunshade 1 of the fourth embodiment shown in Fig. 6(C) has slits 4 and flaps arranged without intervals below each adsorption member 3.

[0042] The sunshade 1 of the fifth embodiment shown in Fig. 6(D) has slits 4 and flaps arranged above the upper attracting member 3 and below the lower attracting member 3. The sunshade 1 of the sixth embodiment shown in Fig. 6(E) has slits 4 and flaps arranged below the upper attracting member 3 and above the lower attracting member 3.

[0043] The sunshade 1 of the seventh embodiment shown in Fig. 6(F) has slits 4 and flaps arranged above and below each attraction member 3, with the flaps facing in opposite directions on the left and right. The sunshade 1 of the eighth embodiment shown in Fig. 6(G) has slits 4 and flaps arranged below each attraction member 3, with the longitudinal dimensions of the slits 4 and flaps being larger than those of the other embodiments.

[0044] The sunshades 1 of the third to eighth embodiments, in which the adsorption members 3 are arranged above and below, all have clearly superior wind resistance compared to the sunshade 1 of the first comparative example, which has only the adsorption members 3, and it was possible to confirm the sufficient effect of the slits 4 and flaps.

[0045] Ninth to Twelfth Embodiments The sunshade 1 shown in Fig. 7 has adsorption members 3 arranged along the four sides (top, bottom, left, and right). The sunshade 1 of the second comparative example shown in Fig. 7(A) has only adsorption members 3. The sunshade 1 of the ninth embodiment shown in Fig. 7(B) has slits 4 and flaps arranged below the upper and lower adsorption members 3.

[0046] The sunshade 1 of the tenth embodiment shown in Figure 7(C) has slits 4 and flaps arranged on the outside of each attraction member 3. The sunshade 1 of the eleventh embodiment shown in Figure 7(D) has slits 4 and flaps arranged on the inside (towards the shade center) of each attraction member 3. The sunshade 1 of the twelfth embodiment shown in Figure 7(E) has slits 4 and flaps arranged above and below the upper and lower attraction members 3, with the flaps facing in opposite directions on the left and right.

[0047] The sunshades 1 of the 9th to 12th embodiments, in which the adsorption members 3 are arranged on the top, bottom, left and right sides, all have clearly superior wind resistance compared to the sunshade 1 of the second comparative example, which has only the adsorption members 3, and it was possible to confirm the sufficient effect of the slits 4 and flaps.

[0048] Thirteenth Embodiment The sunshade 1 of the third comparative example shown in Fig. 8(A) has a square attracting member 3 arranged in the center. The sunshade 1 of the thirteenth embodiment shown in Fig. 8(B) has a square attracting member 3 arranged in the center, and slits 4 and flaps arranged along the four sides of the attracting member 3.

[0049] The sunshade 1 of the thirteenth embodiment, in a configuration in which the adsorption member 3 is arranged in the center, has clearly superior wind resistance compared to the sunshade 1 of the third comparative example, which has only the adsorption member 3, and it was possible to confirm the sufficient effect of the slits 4 and flaps.

[0050] Fourteenth Embodiment The sunshade 1 of the fourth comparative example shown in Fig. 8(C) has L-shaped attraction members 3 arranged at the four corners. The sunshade 1 of the fourteenth embodiment shown in Fig. 8(D) has L-shaped attraction members 3 arranged at the four corners, and slits 4 and flaps arranged along the two inner sides of each corner of the attraction members 3.

[0051] The sunshade 1 of the 14th embodiment, in a configuration in which suction members 3 are arranged at the four corners, clearly has superior wind resistance compared to the sunshade 1 of the fourth comparative example, which has only suction members 3, and it was possible to confirm the sufficient effect of the slits 4 and flaps.

[0052] Fifteenth and Sixteenth Embodiments The sunshade 1 of the fifth comparative example shown in Fig. 9(A) has the adsorption members 3 arranged along the top, left, and right three sides. The sunshade 1 of the fifteenth embodiment shown in Fig. 9(B) has the adsorption members 3 arranged along the four sides (top, bottom, left, and right) and has slits 4 and flaps arranged inside the center of each adsorption member 3 (towards the center of the shade). The sunshade 1 of the sixteenth embodiment shown in Fig. 9(C) has the adsorption members 3 arranged along the four sides (top, bottom, left, and right) and has L-shaped slits 4 and flaps arranged inside the corners of each adsorption member 3.

[0053] The sunshades 1 of the 15th and 16th embodiments, in a configuration in which adsorption members 3 are arranged on at least three sides, have clearly superior wind resistance compared to the sunshade 1 of the fifth comparative example which has only adsorption members 3, and it was possible to confirm the sufficient effect of the slits 4 and flaps.

[0054] The configuration of the sunshade according to the present invention is not limited to the above-described embodiments, and it is possible to modify it as appropriate or combine the configurations of the various embodiments without departing from the spirit of the present invention.

[0055] Furthermore, the sunshade of the present invention can be applied not only to windshields of automobiles, but also to other window glass such as rear windows and door windows. Furthermore, because the sunshade is structured so that the attracting member adheres to the windshield glass, it is easy to attach and detach, and there is no risk of damaging the surface of the vehicle body, compared to sunshades that use magnets or bands for attachment to the vehicle body. [Explanation of symbols]

[0056] V Automobile W windshield glass 1 sunshade 2 Shade body 3. Adsorption material 4 slits 5 Flap 5A fixed part 5B Moving part 6 Notch

Claims

1. A sunshade to be attached to the front of a windshield glass of a car, a shade body that covers the windshield glass; an adsorption member disposed on the rear surface of the shade body; A slit communicating in the thickness direction of the shade body; A flap is disposed on the front of the shade body, The flap has a fixed portion fixed to the front surface of the shade body and a movable portion that opens and closes the slit with elastic deformation, the suction member is disposed on a tip side of the movable portion of the flap in a plan view, A sunshade, characterized in that the adsorption member is disposed along at least a part of the peripheral edge of the shade body, and the slit and the flap are disposed along the adsorption member.

2. A sunshade to be attached to the front of a windshield glass of a car, a shade body that covers the windshield glass; an adsorption member disposed on the rear surface of the shade body; A slit communicating in the thickness direction of the shade body; A flap is disposed on the front of the shade body, The flap has a fixed portion fixed to the front surface of the shade body and a movable portion that opens and closes the slit with elastic deformation, the suction member is disposed on a tip side of the movable portion of the flap in a plan view, The sunshade is characterized in that the slit communicates with the shade body in a thickness direction with its edge aligned with the end of the attracting member in a plan view.

3. The sunshade according to claim 1 or 2, characterized in that it has at least one combination of the slit and the flap, and at least one of the flaps is arranged with the tip of the movable part facing upward toward the windshield glass.

4. 3. The sunshade according to claim 1, wherein the sunshade comprises a plurality of combinations of the slit and the flap, and the flaps of each combination are arranged so that the tip ends of the movable parts are oriented in different directions.

5. 5. The sunshade according to claim 4, wherein the flaps of each set are arranged such that the tip direction of the movable portion is oriented in at least four directions, up, down, left, and right, in the in-plane direction from the center of the windshield glass.

6. The sunshade according to any one of claims 1 to 5, wherein the length of the slit is 10 to 80% of the length of one side of the shade body adjacent to the slit.

7. The sunshade according to any one of claims 1 to 6, wherein the ratio of the length to the width of the slit is 3 to 50.

8. 8. The sunshade according to claim 1, wherein the flap is made of silicone rubber.

9. 9. The sunshade according to claim 1, wherein the attraction member is an electrostatic attraction material that attracts by static electricity, or a suction cup material having minute recesses on its surface.

10. The sunshade according to any one of claims 1 to 9, wherein the solar reflectance of the front surface of the shade body is 50% or more.

11. The sunshade according to any one of claims 1 to 10, wherein the shade body has a notch at a position corresponding to a functional part of the automobile.

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