Sashless door glass and its manufacturing method

Abstract

This sashless door glass has a glass panel raisably / lowerably attached to a sashless door that opens and closes an entrance / exit in a side surface of a vehicle, and a functional film formed on a vehicle-interior surface of the glass panel. The functional film includes, inward of the circumferential edge of the vehicle-interior surface of the glass panel, a front side, a rear side, and an upper side connecting the upper end of the front side and the upper end of the rear side. In a state in which the vehicle-interior surface of the glass panel has been pressed against a seal member provided to an opening edge of the entrance / exit, a wedge-form gap is formed between the vehicle-interior surface of the glass panel and the seal member. At least parts of the front side and the rear side of the functional film are positioned in the gap such that the functional film and the seal member do not come into contact while the glass panel is being raised or lowered.

Description

[Technical Field]

[0001] The present disclosure relates to a sashless door glass and a method for manufacturing the same. [Background technology]

[0002] Patent Document 1 discloses a door glass for an automobile. This door glass is attached to a window frame of a vehicle body so that it can be raised and lowered. A glass run is attached to the inside of the window frame. The glass run has a U-shaped cross section, and the periphery of the door glass is inserted into the glass run. The door glass is coated with an ultraviolet-blocking film, and this film is positioned so as not to come into contact with the glass run. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2016-101826 Summary of the Invention [Problem to be solved by the invention]

[0004] Doors without a sash to guide the door glass as it rises and falls, known as sashless doors, are sometimes used. Door glass that can be attached to a sashless door so that it can rise and fall freely is called sashless door glass.

[0005] The sashless door glass includes a glass plate and a functional film formed on the interior surface of the glass plate. The functional film limits the transmission of ultraviolet light, for example, and may also limit the transmission of infrared light.

[0006] When the functional film is formed on the interior surface of the glass plate, deterioration of the functional film due to rainwater, dust, etc. can be suppressed compared to when the functional film is formed on the exterior surface of the glass plate. However, when the functional film is formed on the interior surface of the glass plate, the functional film and the sealing member rub against each other while the glass plate is raised and lowered, which can cause the functional film to wear.

[0007] The sealing member is attached to the edge of the entrance / exit opening on the side of the vehicle, and seals the gap between the opening edge and the sashless door glass to prevent rainwater, sand, dust, etc. from entering the vehicle. To prevent contact between the sealing member and the functional membrane, the functional membrane can be made smaller than the interior surface of the glass plate, but in this case, the peripheral edge of the functional membrane would be visible to vehicle occupants.

[0008] One aspect of the present disclosure provides a technique for suppressing wear of a functional film of a sashless door glass and concealing the peripheral edge of the functional film from vehicle occupants. [Means for solving the problem]

[0009] A sashless door glass according to one aspect of the present disclosure includes a glass sheet that is attached to a sashless door that opens and closes a vehicle entrance / exit opening in a manner that allows it to be raised and lowered, and a functional film formed on the interior surface of the glass sheet. The functional film includes a front edge, a rear edge, and an upper edge that connects the upper ends of the front edge and the rear edge, located inside the periphery of the interior surface of the glass sheet. When the interior surface of the glass sheet is pressed against a sealing member provided on the edge of the entrance / exit opening, a wedge-shaped gap is formed between the interior surface of the glass sheet and the sealing member. At least a portion of the front edge and the rear edge of the functional film are positioned in the gap so that the functional film and the sealing member do not come into contact with each other during the raising and lowering of the glass sheet. [Effects of the Invention]

[0010] According to one aspect of the present disclosure, wear of the functional film of the sashless door glass can be suppressed, and the peripheral edge of the functional film can be hidden from vehicle occupants. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing a sashless door glass according to one embodiment. [Figure 2] FIG. 2 is a cross-sectional view showing an example of a sashless door glass and a sealing member. [Figure 3]FIG. 3 is an enlarged view of region III in FIG. [Figure 4] FIG. 4 is a diagram showing an example of measurement points for the tip angle of the functional film. [Figure 5] FIG. 5 is a cross-sectional view showing an example of a tip angle on the upper side of the functional film. [Figure 6] FIG. 6 is a cross-sectional view showing an example of a tip angle at the front edge of the functional film. [Figure 7] FIG. 7 is a cross-sectional view showing an example of a tip angle at the rear side of the functional film. [Figure 8] FIG. 8 is a diagram showing a method for manufacturing a sashless door glass according to one embodiment. [Figure 9] FIG. 9 is a diagram showing an example of a target point as viewed from the ejection direction of the coating liquid. [Figure 10] FIG. 10(A) is a diagram showing an example of an image of a straight-line front edge captured from outside the vehicle, and FIG. 10(B) is a diagram showing an example of an image of a wavy-line front edge captured from outside the vehicle. [Figure 11] FIG. 11(A) is a diagram showing an example of an image of a straight-line front edge captured from inside the vehicle, and FIG. 11(B) is a diagram showing an example of an image of a wavy-line front edge captured from inside the vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In each drawing, the same or corresponding components are denoted by the same reference numerals, and their description may be omitted. In each drawing, the X-axis, Y-axis, and Z-axis directions are perpendicular to one another. The X-axis direction is the vehicle longitudinal direction, the Y-axis direction is the vehicle width direction, and the Z-axis direction is the vertical direction.

[0013] In each drawing, the positive side in the X-axis direction is the front side of the vehicle, and the negative side in the X-axis direction is the rear side of the vehicle. The positive side in the Y-axis direction is the inside of the vehicle, and the negative side in the Y-axis direction is the outside of the vehicle. In the specification, "front" means the front of the vehicle, and "rear" means the rear of the vehicle.

[0014] In the present specification, the symbol "to" indicating a range of values ​​means that the values ​​before and after it are included as the lower and upper limits.

[0015] As shown in Fig. 1, a door without a sash for guiding the raising and lowering of a door glass 2, that is, a sashless door 1, is sometimes used. The sashless door 1 opens and closes an entrance on the side of a vehicle.

[0016] The sashless door 1 has two panels (not shown), and a door glass 2 is disposed between these panels. The door glass 2 is housed between the two panels that make up the sashless door 1 when in the fully open position shown by the dashed dotted line in FIG.

[0017] The door glass 2 is raised and lowered between a fully open position shown by a dashed line in Fig. 1 and a fully closed position shown by a solid line in Fig. 1 to open and close the window on the side of the vehicle. The door glass 2 may be raised and lowered diagonally as shown by the arrow in Fig. 1. The door glass 2 attached to the sashless door 1 so as to be able to rise and fall freely is called a sashless door glass.

[0018] The door glass 2 has a glass plate 3. The glass plate 3 is attached to the sashless door 1 so as to be movable up and down. The thickness of the glass plate 3 is, for example, 1.8 mm or more from the viewpoint of scratch resistance. Moreover, the thickness of the glass plate 3 is 6.0 mm or less from the viewpoint of light weight and formability.

[0019] The glass plate 3 may be either inorganic glass or organic glass. Examples of inorganic glass include soda lime glass and aluminosilicate glass. The inorganic glass may be either untempered glass or tempered glass. Untempered glass is made by forming molten glass into a plate shape and slowly cooling it. Tempered glass is made by forming a compressive stress layer on the surface of untempered glass. Tempered glass may be either physically tempered glass (e.g., air-cooled tempered glass) or chemically tempered glass. On the other hand, examples of organic glass include transparent resins such as polycarbonate, acrylic resin, polyvinyl chloride, and polystyrene. An example of an acrylic resin is polymethyl methacrylate.

[0020] The glass sheet 3 has a curved shape that is convex toward the outside of the vehicle. Gravity forming, press forming, or the like is used to bend the glass sheet 3. When the glass sheet 3 is physically tempered glass, the glass surface may be strengthened by rapidly cooling the uniformly heated glass sheet from a temperature near its softening point during bending, and generating compressive stress on the glass surface due to the temperature difference between the glass surface and the interior of the glass. When the glass sheet 3 is chemically tempered glass, the glass surface may be strengthened after bending by generating compressive stress on the glass surface using an ion exchange method or the like.

[0021] The interior surface 31 of the glass plate 3 is a curved surface concave toward the interior of the vehicle. The interior surface 31 of the glass plate 3 has, at its periphery 32, a front edge 33, a rear edge 34, and an upper edge 35 connecting the upper end of the front edge 33 and the upper end of the rear edge 34.

[0022] 1, when the door glass 2 is attached to the sashless door 1 and the sashless door 1 is closing the passenger entrance on the side of the vehicle, the front edge 33 and the rear edge 34 of the interior surface 31 of the glass plate 3 may be inclined as viewed in the vehicle width direction. For example, the front edge 33 and the rear edge 34 are parallel to the direction in which the door glass 2 moves up and down, and are inclined more rearward as they extend upward.

[0023] The door glass 2 further has a functional film 4. The functional film 4, for example, limits the transmission of ultraviolet rays. The functional film 4 may further limit the transmission of infrared rays. The functional film 4 may be any of an ultraviolet-blocking film, an infrared-blocking film, an anti-fogging film, an anti-fouling film, a low-reflection film, and an electromagnetic shielding film. The functional film 4 may also be a colored transparent film, or an anti-glare film that reduces the transmittance of visible light.

[0024] The functional film 4 is formed on the vehicle interior surface 31 of the glass plate 3. When the functional film 4 is formed on the vehicle interior surface 31 of the glass plate 3, deterioration of the functional film 4 due to rainwater, dust, etc. can be suppressed compared to when the functional film 4 is formed on the vehicle exterior surface of the glass plate 3.

[0025] 1, the functional film 4 includes a front edge 43, a rear edge 44, and an upper edge 45 connecting the upper end of the front edge 43 and the upper end of the rear edge 44, located inside the peripheral edge 32 of the vehicle interior surface 31 of the glass plate 3. The peripheral edge 32 of the vehicle interior surface 31 of the glass plate 3 is exposed, and the exposed portion is pressed against the sealing member 5 (see FIG. 2).

[0026] The sealing member 5 is provided on the edge of the opening of the entrance / exit door on the side of the vehicle, and seals the gap between the opening edge and the door glass 2, preventing rainwater, sand, dust, etc. from entering the vehicle interior. The sealing member 5 contacts at least the front edge 33, rear edge 34, and top edge 35 of the peripheral edge 32 of the interior surface 31 of the glass plate 3, and prevents rainwater, etc. from entering the vehicle interior at least from the front, rear, and above.

[0027] 1 , the front edge 43 of the functional film 4 is formed along the front edge 33 of the glass plate 3, and the rear edge 44 of the functional film 4 is formed along the rear edge 34 of the glass plate 3. When the front edge 33 and the rear edge 34 of the glass plate 3 are inclined, the front edge 43 and the rear edge 44 of the functional film 4 are also inclined. In addition, the upper edge 45 of the functional film 4 is formed along the upper edge 35 of the glass plate 3.

[0028] When the sashless door 1 is closed, as shown in Fig. 2, the vehicle interior surface 31 of the glass plate 3 is pressed against the seal member 5. In this state, a wedge-shaped gap G is formed between the vehicle interior surface 31 of the glass plate 3 and the seal member 5. The gap G opens on the opposite side (positive direction of the X axis in Fig. 2) from the peripheral edge 32 (rear edge 34 in Fig. 2) of the vehicle interior surface 31 of the glass plate 3.

[0029] At least a portion of the front edge 43 and the rear edge 44 of the functional film 4 (the rear edge 44 in FIG. 2 ) is disposed in the gap G so that the functional film 4 and the sealing member 5 do not come into contact with each other while the glass plate 3 is being raised or lowered. As a result, wear of the functional film 4 can be suppressed, and the peripheral edge of the functional film 4 can be hidden from the vehicle occupant H.

[0030] As emphasized in Fig. 3, at least a portion of the front edge 43 and the rear edge 44 of the functional membrane 4 (the rear edge 44 in Fig. 3) may be a wavy line. The wavy line is a curved line that repeatedly extends in front of the reference line L and then extends behind the reference line L.

[0031] The reference line L of the rear edge 44 of the functional film 4 is set parallel to the rear edge 34 of the vehicle interior surface 31 of the glass plate 3, and is set so that the total area of ​​the parts protruding in front of the reference line L is equal to the total area of ​​the parts protruding behind the reference line L.

[0032] Similarly, the reference line L of the front edge 43 of the functional film 4 is set parallel to the front edge 33 of the glass plate 3, and is set so that the total area of ​​the portion extending in front of the reference line L is equal to the total area of ​​the portion extending behind the reference line L.

[0033] The average value (average amplitude) of the amplitude A of the wavy lines is, for example, 0.3 mm to 8 mm, preferably 0.3 mm to 5 mm. The average value (average period) of the period P of the wavy lines is, for example, 10 mm to 300 mm, preferably 20 mm to 200 mm.

[0034] If at least a portion of the front edge 43 and the rear edge 44 of the functional film 4 is a wavy line, the wavy line diffuses light, making the front edge 43 or the rear edge 44 less noticeable from outside the vehicle. Fig. 10(A) shows an example of an image of the straight front edge 43A captured from the outside of the vehicle, and Fig. 10(B) shows an example of an image of the wavy front edge 43B captured from the outside of the vehicle. Fig. 11(A) shows an example of an image of the straight front edge 43A captured from the inside of the vehicle, and Fig. 11(B) shows an example of an image of the wavy front edge 43B captured from the inside of the vehicle. The wavy front edge 43B shown in Figs. 10(B) and 11(B) had an amplitude A of 2 mm and a period P of 60 mm.

[0035] The images shown in Figures 10(A) and 10(B) were taken by placing two rod-shaped fluorescent lamps FL1 and FL2 on the inside of the door glass 2 and placing a camera on the outside of the door glass 2. The distance between the door glass 2 and the fluorescent lamps FL1 and FL2 was 1 m. The distance between the door glass 2 and the camera was 50 cm. The front edges 43A and 43B of the functional film 4 and the fluorescent lamps FL1 and FL2 were placed parallel to each other. As is clear from a comparison of Figures 10(A) and 10(B), the wavy front edge 43B can suppress diffuse reflection of light passing through the door glass 2 compared to the straight front edge 43A, making it less noticeable.

[0036] The images shown in Figures 11(A) and 11(B) were taken by placing two rod-shaped fluorescent lamps FL1 and FL2 on the exterior side of the door glass 2 and placing a camera on the interior side of the door glass 2. The distance between the door glass 2 and the fluorescent lamps FL1 and FL2 was 1 m. The distance between the door glass 2 and the camera was 50 cm. The front edges 43A and 43B of the functional film 4 and the fluorescent lamps FL1 and FL2 were arranged parallel to each other. As is clear from a comparison of Figures 11(A) and 11(B), the wavy front edge 43B can suppress diffuse reflection of light passing through the door glass 2 compared to the straight front edge 43A, making it less noticeable.

[0037] The tip angle α at the upper edge 45 of the functional membrane 4 is smaller than both the tip angle β at the front edge 43 of the functional membrane 4 and the tip angle γ at the rear edge 44 of the functional membrane 4. In other words, the tip of the upper edge 45 of the functional membrane 4 is sharper than both the tip of the front edge 43 of the functional membrane 4 and the tip of the rear edge 44 of the functional membrane 4. α, β, and γ are the angles formed by the outer surface and inner surface of the functional membrane 4 at the periphery of the functional membrane 4. The method for measuring α, β, and γ will be described later.

[0038] When the door glass 2 is raised from the fully open position indicated by the dashed line in Figure 1, the upper edge 45 of the functional film 4 comes into contact with a belt molding (not shown). The belt molding is provided on the upper edge of the sashless door 1 and prevents rainwater and other contaminants from entering the gap between the two panels that make up the sashless door 1.

[0039] According to this embodiment, the tip of the upper edge 45 of the functional film 4 is sharp, which reduces the frictional resistance between the functional film 4 and the belt molding when the door glass 2 rises, compared to when the tip of the upper edge 45 of the functional film 4 is not sharp, for example, when there is a step perpendicular to the vehicle interior surface 31 of the glass plate 3. Therefore, wear on the functional film 4 can be suppressed.

[0040] The tip angle α of the upper side 45 of the functional film 4 is, for example, 0.04 mrad to 0.3 mrad, and preferably 0.04 mrad to 0.2 mrad. The tip angle α is the average value of tip angles α1 to α3 measured at three measurement points SP1 to SP3 shown in Figure 4. The three measurement points SP1 to SP3 are set midway between one end 45a and the other end 45b of the upper side 45 so as to divide the upper side 45 into four equal parts.

[0041] The tip angles α1 to α3 are each measured on a cross section perpendicular to the top edge 45, and are determined from the film thickness distribution of the functional film 4. The film thickness distribution of the functional film 4 is measured, for example, using a white light interference microscope. The measurement method for the tip angles α1 to α3 is the same, so the following describes the measurement method for the tip angle α1 as a representative example. As shown in Figure 5, the tip angle α1 is the angle between the line L1 connecting the measurement point SP1 and the point P1 below and the vehicle interior surface 31 of the glass plate 3.

[0042] Point P1 is set on the interior surface of the functional film 4, and is one of the points where the transmittance of ultraviolet light (wavelength 355 nm) is 1.0% and the point where the transmittance of infrared light (wavelength 875 nm) is 30%, whichever is closer to the upper side 45. The ultraviolet light transmittance is measured by irradiating ultraviolet light perpendicularly onto the interior surface 31 of the glass plate 3. The infrared light transmittance is measured by irradiating infrared light perpendicularly onto the interior surface 31 of the glass plate 3. The film thickness of the functional film 4 at point P1 is, for example, 2 μm.

[0043] The tip angle β of the front edge 43 of the functional film 4 is, for example, 0.6 mrad to 1.0 mrad, and preferably 0.7 mrad to 0.9 mrad. The tip angle β is the average value of tip angles β1 to β3 measured at three measurement points SP4 to SP6 shown in Figure 4. The three measurement points SP4 to SP6 are set midway between one end 43a and the other end 43b of the front edge 43 so as to divide the front edge 43 into four equal parts.

[0044] The tip angles β1 to β3 are each measured on a cross section perpendicular to the front edge 43, and are determined from the film thickness distribution of the functional film 4. The film thickness distribution of the functional film 4 is measured, for example, using a white light interference microscope. The measurement method for the tip angles β1 to β3 is the same, so the following describes the measurement method for the tip angle β1 as a representative example. As shown in Figure 6, the tip angle β1 is the angle between the line L2 connecting the measurement point SP4 and the point P2 below and the vehicle interior surface 31 of the glass plate 3.

[0045] Point P2 is set on the interior surface of the functional film 4, and is one of the points where the transmittance of ultraviolet light (wavelength 355 nm) is 1.0% and the point where the transmittance of infrared light (wavelength 875 nm) is 30%, which is closer to the front edge 43. The methods for measuring the transmittance of ultraviolet light and the transmittance of infrared light are as described above. The film thickness of the functional film 4 at point P2 is, for example, 2 μm.

[0046] The tip angle γ of the rear side 44 of the functional film 4 is, for example, 0.6 mrad to 1.0 mrad, and preferably 0.7 mrad to 0.9 mrad. The tip angle γ is the average value of tip angles γ1 to γ3 measured at three measurement points SP7 to SP9 shown in Figure 4. The three measurement points SP7 to SP9 are set midway between one end 44a and the other end 44b of the rear side 44 so as to divide the rear side 44 into four equal parts.

[0047] The tip angles γ1 to γ3 are each measured at a cross section perpendicular to the rear edge 44, and are determined from the film thickness distribution of the functional film 4. The film thickness distribution of the functional film 4 is measured, for example, using a white light interference microscope. The measurement method for the tip angles γ1 to γ3 is the same, so the following describes the measurement method for the tip angle γ1 as a representative example. As shown in Figure 7, the tip angle γ1 is the angle between the line L3 connecting the measurement point SP7 and the point P3 below and the vehicle interior surface 31 of the glass plate 3.

[0048] Point P3 is set on the interior surface of the functional film 4, and is the point closer to the rear edge 44 between a point where the transmittance of ultraviolet light (wavelength 355 nm) is 1.0% and a point where the transmittance of infrared light (wavelength 875 nm) is 30%. The methods for measuring the transmittance of ultraviolet light and the transmittance of infrared light are as described above. The film thickness of the functional film 4 at point P3 is, for example, 2 μm.

[0049] Next, a manufacturing method of the door glass 2 will be described with reference to Fig. 8. The manufacturing method of the door glass 2 includes applying a coating liquid CL to the vehicle interior surface 31 of the glass plate 3 to form a functional film 4. The coating liquid CL is applied by, for example, a flow coating method.

[0050] In the flow coating method, the glass plate 3 is held upright and the coating liquid CL is poured onto the inner surface 31 of the glass plate 3. The coating liquid CL is discharged from the nozzle 6 toward a target point TP on the inner surface 31 of the glass plate 3, and is poured downward from the target point TP by gravity.

[0051] The nozzle 6 is moved along the upper edge of the inner surface 31 of the glass plate 3. As a result, the target point TP of the coating liquid CL is also moved along the upper edge 35 of the inner surface 31 of the glass plate 3, as shown in Fig. 9. In this way, the functional film 4 is formed in the desired region.

[0052] The functional film 4 is formed away from the front edge 33, the rear edge 34, and the top edge 35 of the periphery 32 of the vehicle interior surface 31 of the glass plate 3. Therefore, the target point TP of the coating liquid CL is also moved away from the front edge 33, the rear edge 34, and the top edge 35 of the periphery 32 of the vehicle interior surface 31 of the glass plate 3. The moving direction of the target point TP may be opposite to the direction indicated by the arrow in Figure 9, and the start point and end point of the target point TP may be opposite.

[0053] In this embodiment, the nozzle 6 is moved to move the target point of the coating liquid CL, but the glass plate 3 may be moved instead, or both the nozzle 6 and the glass plate 3 may be moved.

[0054] When viewed from the ejection direction of the coating liquid CL (the direction of arrow B shown in Figure 8), the coating liquid CL is poured while the front edge 33 or rear edge 34 of the glass plate 3 is positioned vertically, as shown by the solid line in Figure 9.

[0055] When the glass plate 3 is mounted on the vehicle, the front edge 33 or the rear edge 34 is inclined as shown by the two-dot chain line in Fig. 9. The coating liquid CL is poured onto the vehicle interior surface 31 of the glass plate 3, which is oriented in a different direction from when the glass plate 3 is mounted on the vehicle.

[0056] According to this embodiment, as described above, the front edge 33 of the glass plate 3 is positioned vertically when viewed from the ejection direction of the coating liquid CL, and the coating liquid CL is poured along the front edge 33. As a result, the front edge 43 of the functional film 4 is formed along the front edge 33 of the glass plate 3.

[0057] Furthermore, according to this embodiment, as described above, the rear edge 34 of the vehicle interior surface 31 of the glass plate 3 is arranged vertically when viewed from the ejection direction of the coating liquid CL, and the coating liquid CL is poured along the rear edge 34. As a result, the rear edge 44 of the functional film 4 is formed along the rear edge 34 of the glass plate 3.

[0058] When the coating liquid CL is poured, the flow becomes turbulent, and at least a part of the front edge 43 and the rear edge 44 of the functional film 4 becomes a wavy line. The average value of the amplitude A of the wavy line and the average value of the period P of the wavy line are determined by the discharge flow rate of the coating liquid CL, etc.

[0059] As the coating liquid CL is poured, it is stretched downward by gravity, and therefore the tip angle α at the upper edge 45 of the functional film 4 is smaller than both the tip angle β at the front edge 43 of the functional film 4 and the tip angle γ at the rear edge 44 of the functional film 4.

[0060] The sashless door glass and its manufacturing method according to the present disclosure have been described above, but the present disclosure is not limited to the above-described embodiments. Various changes, modifications, substitutions, additions, deletions, and combinations are possible within the scope of the claims. These changes also naturally fall within the technical scope of the present disclosure.

[0061] This application claims priority based on Japanese Patent Application No. 2020-071905, filed with the Japan Patent Office on April 13, 2020, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0062] 1. Sashless door 2 Door glass (sashless door glass) 3 glass plates 4. Functional membranes

Claims

1. A sashless door glass having a glass plate attached to a sashless door that opens and closes a vehicle entrance / exit opening on a side of the vehicle so as to be able to move up and down, and a functional film formed on the vehicle interior surface of the glass plate, the functional film includes a front edge, a rear edge, and an upper edge connecting an upper end of the front edge and an upper end of the rear edge, the functional film being located inside a peripheral edge of the glass plate on the vehicle interior surface, a wedge-shaped gap is formed between the car interior surface of the glass plate and the seal member when the car interior surface of the glass plate is pressed against a seal member provided on an opening edge of the entrance; at least a part of the front edge and the rear edge of the functional film are disposed in the gap so that the functional film and the sealing member do not come into contact with each other while the glass plate is being raised or lowered; At least a portion of the front edge and the rear edge of the functional film are wavy lines.

2. 2. The sashless door glass according to claim 1, wherein the wavy lines have an average amplitude of 0.3 mm to 8 mm and an average period of 10 mm to 300 mm.

3. The sashless door glass according to claim 1 or 2, wherein a tip angle of the functional film at the upper edge is smaller than both a tip angle of the functional film at the front edge and a tip angle of the functional film at the rear edge.

4. The sashless door glass according to any one of claims 1 to 3, wherein a tip angle of the functional film at the upper edge is 0.04 mrad to 0.3 mrad.

5. The sashless door glass according to any one of claims 1 to 4, wherein a tip angle of the functional film at the front edge is 0.6 mrad to 1.0 mrad.

6. The sashless door glass according to any one of claims 1 to 5, wherein a tip angle of the functional film at the rear edge is 0.6 mrad to 1.0 mrad.

7. A method for manufacturing a sashless door glass having a glass plate that is attached to a sashless door that opens and closes a vehicle entrance so as to be able to move up and down, and a functional film that is formed on an interior surface of the glass plate, applying a coating liquid to the vehicle interior surface of the glass plate to form the functional film; the functional film includes a front edge, a rear edge, and an upper edge connecting an upper end of the front edge and an upper end of the rear edge, the functional film being located inside a peripheral edge of the glass plate on the vehicle interior surface, a wedge-shaped gap is formed between the car interior surface of the glass plate and the seal member when the car interior surface of the glass plate is pressed against a seal member provided on an opening edge of the entrance; at least a part of the front edge and the rear edge of the functional film are disposed in the gap so that the functional film and the sealing member do not come into contact with each other while the glass plate is being raised or lowered; A method for manufacturing a sashless door glass, wherein at least a portion of the front edge and the rear edge of the functional film are wavy lines.

8. When the glass plate is attached to the sashless door and the sashless door closes the entrance, a front edge and a rear edge of the glass plate on the vehicle interior surface are inclined as viewed in the vehicle width direction, forming the functional film includes pouring a coating liquid onto the vehicle interior surface of the glass plate in an upright state; The method for manufacturing a sashless door glass according to claim 7 , wherein the coating liquid is poured in a state where the front edge or the rear edge of the glass plate is arranged vertically when viewed from a direction in which the coating liquid is ejected.

9. The method for manufacturing a sashless door glass according to claim 8, wherein the wavy lines have an average amplitude of 0.3 mm to 8 mm and an average period of 10 mm to 300 mm.

10. The manufacturing method of sashless door glass according to any one of claims 7 to 9, wherein the tip angle of the functional film at the upper edge is smaller than both the tip angle of the functional film at the front edge and the tip angle of the functional film at the rear edge.

11. The method for manufacturing a sashless door glass according to any one of claims 7 to 10, wherein a tip angle of the functional film at the upper side is 0.04 mrad to 0.3 mrad.

12. The method for manufacturing a sashless door glass according to any one of claims 7 to 11, wherein a tip angle of the functional film at the front edge is 0.6 mrad to 1.0 mrad.

13. The method for manufacturing a sashless door glass according to any one of claims 7 to 12, wherein a tip angle of the functional film at the rear edge is 0.6 mrad to 1.0 mrad.

Images