Window glass for vehicle

Abstract

To provide a window glass for a vehicle that is able to prevent rattling of a movable glass caused by sliding of the movable glass.SOLUTION: A window glass 100 for a vehicle, according to an aspect of the present invention, includes: a fixed glass 110 that has an opening and is fixed in the vehicle 10; a movable glass 120 that can be fitted into the opening of the fixed glass 110; and a pair of support members 130, 140 that sandwich the movable glass 120 from above and below and slidably support the movable glass with respect to the fixed glass 110. The pair of support members 130, 140 are provided with grooves 131, 132, 141, 142. The pair of support members 130, 140 are made of resin. At least one of the pair of support members 130, 140 has an inclination in which a bottom surface of the groove 132, 142 approaches the other support member on a rear side of the vehicle. A ratio of a height of the inclination to an entire length of the support member 130, 140 is 0.03% or more and 1.0% or less.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a window glass for a vehicle.

Background Art

[0002] There is known a technique of providing an opening by cutting out a part of a fixed glass fixed to a vehicle and fitting a movable glass into the opening. For example, the movable glass is slidably supported by a pair of support members attached substantially horizontally.

[0003] Patent Document 1 discloses a technique of slidably supporting a movable glass by a pair of support members attached to a fixed glass.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] From the viewpoints of ease of processing and weight reduction, the support member fixed to the fixed glass is made of, for example, resin. However, the support member made of resin may be distorted after molding. Therefore, there is a problem that rattling of the movable glass due to the distortion of the support member occurs when the movable glass is slid.

[0006] In view of the above problems, an object of the present invention is to provide a window glass for a vehicle capable of suppressing rattling of the movable glass that occurs when the movable glass is slid.

Means for Solving the Problems

[0007] The vehicle window glass according to one aspect of the present disclosure includes a fixed glass having an opening and fixed to a vehicle, a movable glass configured to be insertable into the opening of the fixed glass, and a pair of support members that sandwich the movable glass from above and below and slidably support the movable glass with respect to the fixed glass. The pair of support members are provided with groove portions along the sliding direction of the movable glass. The pair of support members are made of resin. At least one of the pair of support members has an inclination in which the bottom surface of the groove portion approaches the other support member on the rear side of the vehicle. The ratio of the height of the inclination of the bottom surface of the groove portion to the overall length of the support member is 0.03% or more and 1.0% or less.

Advantages of the Invention

[0008] According to the present invention, rattling of the movable glass generated when the movable glass is slid can be suppressed.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. For ease of understanding, the scales of the respective parts in the drawings may be different from the actual ones. In directions such as parallel, right angle, orthogonal, horizontal, vertical, up and down, left and right, a deviation that does not impair the effects of the embodiments is allowed. The shape of the corners is not limited to a right angle and may be arcuate and rounded. Parallel, right angle, orthogonal, horizontal, and vertical may include substantially parallel, substantially right angle, substantially orthogonal, substantially horizontal, and substantially vertical. Further, in this specification, "substantially" refers to a state in which a person visually recognizes the same shape and the same dimensions.

[0011] <Embodiment 1> FIG. 1 is a diagram showing an example of a vehicle 10 including a vehicle window glass 100 according to the present embodiment. The vehicle 10 is a one-box car and includes a sliding door 20 and a side door 30 on the side surface. The vehicle window glass 100 is provided on the sliding door 20. In the present embodiment, front-rear, left-right, and up-down correspond to the front-rear, left-right, and up-down of the vehicle 10.

[0012] As shown in FIG. 1, the vehicle 10 is provided with front openings (not shown) in the front of both left and right side surfaces. A side door 30 is attached to each front opening so as to be openable and closable. Central openings (not shown) are provided in the central portions of both left and right side surfaces of the vehicle 10. A sliding door 20 is attached to each central opening so as to be openable and closable in the front-rear direction of the vehicle 10. The example shown in FIG. 1 shows a state where the sliding door 20 is closed. The sliding door 20 is attached so as to be slidable toward the rear of the vehicle. Therefore, the sliding door 20 can be opened by sliding the sliding door 20 toward the rear of the vehicle.

[0013] The vehicle window glass 100 is attached to the sliding door 20. For example, as shown in FIG. 1, the vehicle window glass 100 may be configured to be designedly continuous with a window glass 40 provided at the rear of the vehicle 10.

[0014] FIG. 2 is a diagram showing the configuration of the vehicle window glass 100 according to the present embodiment, and is a view of the vehicle window glass 100 provided on the right side surface of the vehicle 10 as seen from the inside of the vehicle. The vehicle window glass 100 includes a fixed glass 110, a movable glass 120, and support members 130 and 140.

[0015] The fixed glass 110 is a rectangular glass plate and is fixed to the sliding door 20. As shown in FIG. 2, the fixed glass 110 may be, for example, horizontally long. A small window (not shown) is provided in the fixed glass 110. The small window is a rectangular opening with rounded corners, and the upper and lower sides are substantially horizontal.

[0016] The movable glass 120 is fitted into the opening provided in the fixed glass 110 and is movable with respect to the fixed glass 110 and the sliding door 20.

[0017] FIG. 3 is an exploded view of a part of the movable glass 120 and is a view of the movable glass 120 provided on the right side surface of the vehicle 10 as seen from the inside of the vehicle. As shown in FIG. 3, the movable glass 120 includes a frame body 121, a glass plate 122, rods 123a and 123b, caps 124, springs 125a and 125b, a cover 126, pins 127a and 127b, a seal member 128, a molding 129, and leaf springs 130a and 130b. The frame body 121 is a rectangular member having an opening in the center. The glass plate 122 is a rectangular glass plate. The glass plate 122 integrated with the molding 129 is fitted into the opening provided in the frame body 121.

[0018] The rods 123a and 123b are rod-shaped or flat plate-shaped members extending in the vertical direction and are attached to the rear end of the frame 121 on the vehicle side. The upper end of the rod 123a is slidably fitted into a groove portion 132 (Fig. 5) provided in the support member 130. A knob is provided at the lower end of the rod 123a. The lower end of the rod 123b is slidably fitted into a groove portion 142 (Fig. 4) provided in the support member 140. A knob is provided at the upper end of the rod 123b. The rods 123a and 123b are attached in a straight line such that the ends provided with the knobs are in contact with each other. The rods 123a and 123b are covered by the frame 121, the cap 124, and the cover 126. The frame 121 is a member that covers the upper and lower portions of the rods 123a and 123b when viewed from the inside of the vehicle. The cap 124 is a member that covers the vicinity of the knobs of the rods 123a and 123b. The cover 126 is a member that covers the entire rods 123a and 123b when viewed from the outside of the vehicle.

[0019] When sliding the movable glass 120, while pinching the knobs of the rods 123a and 123b, move the movable glass 120 forward or backward of the vehicle. When the knobs of the rods 123a and 123b are pinched, the rods 123a and 123b move away from the bottom surfaces of the groove portions 132 and 142 of the support members 130 and 140. Therefore, when sliding the movable glass 120, the resistance generated between the rods 123a and 123b and the support members 130 and 140 is small.

[0020] Springs 125a and 125b are respectively attached to the rods 123a and 123b. When the knobs of the rods 123a and 123b are pinched, the springs 125a and 125b contract. When the knobs of the rods 123a and 123b are released, the springs 125a and 125b return from the contracted state to their original state. Therefore, when the knobs of the rods 123a and 123b are released, the rods 123a and 123b return to their original positions by the restoring force of the springs 125a and 125b.

[0021] In the example shown in FIG. 3, the rods 123a and 123b are members integrally formed using resin. When the rods 123a and 123b are integrally formed, the strength of the rods 123a and 123b is improved. Note that the rods 123a and 123b may be configured using materials other than resin, or may be configured using a plurality of members. The rods 123a and 123b may be, for example, connected by covering a plurality of metal members with resin.

[0022] The pins 127a and 127b are members attached to the frame body 121 and in contact with the support members 130 and 140. The pin 127a is attached to the front side of the vehicle of the upper side of the frame body 121 and is slidably fitted into a groove portion 131 provided in the support member 130. The pin 127b is attached to the front side of the vehicle of the lower side of the frame body 121 and is slidably fitted into a groove portion 141 provided in the support member 140.

[0023] The seal member 128 is, as an example, sandwiched between the frame body 121 and the fixed glass 110. The seal member 128 is a member that seals the gap between the frame body 121 and the fixed glass 110. The molding 129 is attached to the periphery of the glass plate 122. Thereby, since the end face of the glass plate 122 is covered, the design property when the movable glass 120 is viewed from the outside of the vehicle can be improved. The leaf springs 130a and 130b are members attached to the upper side of the frame body 121. The leaf springs 130a and 130b are elastic bodies that contract when a force is applied in the vertical direction.

[0024] The support members 130 and 140 are rails that slidably support the movable glass 120. Hereinafter, with reference to FIGS. 4 and 5 and the like, the support members 130 and 140 will be described.

[0025] FIG. 4 is a diagram showing the configuration of the support member 140, and is a view of the support member 140 seen from above. As shown in FIG. 4, groove portions 141 and 142 are provided on the upper surface of the support member 140. The groove portions 141 and 142 are grooves provided along the sliding direction of the movable glass 120. The pin 127b is slidably fitted into the groove portion 141. The rod 123b is slidably fitted into the groove portion 142.

[0026] The portion of the bottom surface of the groove portion 141 that is the most forward in the vehicle is defined as the fully closed position 141a. The portion of the bottom surface of the groove portion 142 that is the most forward in the vehicle is defined as the fully closed position 142a. When the pin 127b is located at the fully closed position 141a and the rod 123b is located at the fully closed position 142a, the movable glass 120 is fitted into the opening of the fixed glass 110, that is, the small window is in a fully closed state. The portion of the bottom surface of the groove portion 141 that is the most rearward in the vehicle is defined as the fully open position 141b. The portion of the bottom surface of the groove portion 142 that is the most rearward in the vehicle is defined as the fully open position 142b. When the pin 127b is located at the fully open position 141b and the rod 123b is located at the fully open position 142b, the movable glass 120 does not overlap with the opening of the fixed glass 110 at all, that is, the small window is in a fully open state. Note that the vehicle window glass can be used in a state where a part of the movable glass 120 overlaps with the opening of the fixed glass 110, that is, a state where a part of the small window is open.

[0027] As shown in FIG. 4, the vicinity of the fully closed position 141a may be provided so as to be located outside the vehicle more than other portions of the groove portion 141. Also, the vicinity of the fully closed position 142a may be provided so as to be located outside the vehicle more than other portions of the groove portion 142.

[0028] FIG. 5 is a diagram showing the configuration of the support member 130 and is a view of the support member 130 seen from below to above. As shown in FIG. 5, groove portions 131 and 132 having a shape corresponding to the groove portions 141 and 142 provided on the upper surface of the support member 140 are provided on the lower surface of the support member 130. The pin 127a is slidably fitted into the groove portion 131. The rod 123a is slidably fitted into the groove portion 132.

[0029] The portion of the bottom surface of the groove portion 131 that is the most forward in the vehicle is defined as the fully closed position 131a. The portion of the bottom surface of the groove portion 132 that is the most forward in the vehicle is defined as the fully closed position 132a. The portion of the bottom surface of the groove portion 131 that is the most rearward in the vehicle is defined as the fully open position 131b. The portion of the bottom surface of the groove portion 132 that is the most rearward in the vehicle is defined as the fully open position 132b.

[0030] Note that the shape of the groove portions provided in the support members 130 and 140 is not limited to the examples shown in FIGS. 4 and 5. For example, a single groove portion extending from the front-end side of the vehicle to the rear-end side of the vehicle may be provided in the support members 130 and 140.

[0031] Returning to FIG. 2, the support members 130 and 140 will be further described. The support members 130 and 140 are attached to the fixed glass 110 such that the movable glass 120 becomes horizontal when the small window is fully closed. Specifically, the support members 130 and 140 are attached to the fixed glass 110 such that the heights of the fully closed position 131a and the fully closed position 132a are substantially the same, and the heights of the fully closed position 141a and the fully closed position 142a are substantially the same.

[0032] The support members 130 and 140 are made of resin. The resin constituting the support members 130 and 140 may shrink during or after processing. Therefore, when forming a support member provided with a groove portion using resin, both ends of the support member protrude toward the side opposite to the side where the groove portion is provided, and the central portion of the support member is distorted so as to protrude toward the side where the groove portion is provided, and an arcuate warp may occur. When attaching the support member with the arcuate warp to the fixed glass 110 such that the movable glass 120 becomes horizontal when the small window is fully closed, the distance between the bottom surfaces of the groove portions provided in the pair of support members becomes larger on the rear-end side of the vehicle than on the front-end side of the vehicle. Therefore, rattling of the movable glass 120 is likely to occur when the movable glass 120 is slid toward the rear-end side of the vehicle.

[0033] Therefore, in the example shown in FIG. 2, the support members 130 and 140 have an inclination on the rear side of the vehicle such that the bottom surface of the groove portion approaches the other support member. By having such an inclination, the support members 130 and 140 correct the arcuate warpage caused by being made of resin. Even when the support members 130 and 140 are attached to the fixed glass 110 so that the movable glass 120 becomes horizontal when the small window is fully closed, the distance between the bottom surfaces of the groove portions provided in the pair of support members does not increase on the rear side of the vehicle. Therefore, rattling of the movable glass 120 that occurs when the movable glass 120 is slid toward the rear side of the vehicle is suppressed.

[0034] The ratio of the height of the inclination of the bottom surface of the groove portions 132 and 142 to the overall length of the support members 130 and 140 is 0.03% or more, preferably 0.04% or more, and more preferably 0.10% or more from the viewpoint of sufficiently correcting the distortion of the support members 130 and 140. The ratio of the height of the inclination of the bottom surface of the groove portions 132 and 142 to the overall length of the support members 130 and 140 is 1.0% or less, preferably 0.65% or less, more preferably 0.50% or less, still more preferably 0.40% or less, even more preferably 0.30% or less, and particularly preferably 0.25% or less from the viewpoint of suppressing the resistance during sliding of the support members 130 and 140. Here, the overall length of the support members 130 and 140 is the length from the front-end on the vehicle side of the support members 130 and 140 to the rear-end on the vehicle side. Also, the height of the inclination of the bottom surface of the groove portions 132 and 142 is the height of the support members 130 and 140 at the fully open positions 132b and 142b with respect to the support members 130 and 140 at the fully closed positions 132a and 142a. Note that the overall length of the support members and the height of the inclination of the bottom surface of the groove portions in Embodiments 2 and 3 described later are the same as those in Embodiment 1.

[0035] The overall lengths of the support members 130 and 140 are, for example, 800 mm or more and 1000 mm or less. The height of the inclination of the bottom surfaces of the groove portions 132 and 142 is preferably 0.3 mm or more and 5.0 mm or less, more preferably 0.3 mm or more and 3.0 mm or less, and still more preferably 1.0 mm or more and 2.0 mm or less, from the viewpoint of sufficiently correcting the distortion of the support members 130 and 140.

[0036] When the pair of support members 130 and 140 fully close the opening by fitting the movable glass 120 into the opening of the fixed glass 110, the movable glass 120 is supported substantially horizontally. Therefore, rattling of the movable glass 120 is suppressed in a state where the small window is fully closed.

[0037] In the example shown in FIG. 2, both of the support members 130 and 140 have an inclination in which the bottom surface of the groove portion approaches the other support member on the vehicle rear side. However, only one of the support members 130 and 140 may have an inclination in which the bottom surface of the groove portion approaches the other support member on the vehicle rear side. Also, at least one of the support members 130 and 140 may have an inclination only on the bottom surface of the groove portion, or the entire support member may have an inclination approaching the other support member, or the surface on the side where the groove portion is provided, that is, the surface on the other support member side, may have an inclination approaching the other support member.

[0038] Next, with reference to FIG. 6, the inclination provided on the support members 130 and 140 will be further described. FIG. 6 is a schematic cross-sectional view of a part of the support member 140 included in the vehicle window glass 100 according to the present embodiment, and is a diagram schematically showing a cross-section when the support member 140 is cut along the extending direction of the groove portion 142. The rod position 123b(i) is the position of the rod 123b when the small window is fully closed. The rod position 123b(ii) is the position of the rod 123b when the small window is opened about halfway. The rod position 123b(iii) is the position of the rod 123b when the small window is opened about 90%, that is, immediately before the small window is fully opened. The rod position 123b(iv) is the position of the rod 123b when the small window is fully opened.

[0039] As shown in FIG. 6, the bottom surface of the groove portion 142 is provided with a step so as to be lower than the portions other than the fully closed position 142a and the fully open position 142b at the fully closed position 142a and the fully open position 142b. Therefore, when the small window is in the fully closed state or the fully open state, the sliding of the movable glass 120 is restricted by the rod 123b being caught by the step provided on the bottom surface of the groove portion 142. That is, the movable glass 120 is locked. For example, when opening the small window from the fully closed state, while lifting the rod 123b by pinching the knobs provided on the rods 123a and 123b, the movable glass 120 is slid toward the rear side of the vehicle.

[0040] As shown in FIG. 6, a step may be provided on the bottom surface of the groove portion 142 so that the rod position 123b(i) is lower than the rod position 123b(iv). In this case, the spring 125b attached to the rod 123b is contracted in the fully open state as compared with the fully closed state. That is, the rod 123b is pressed more strongly against the bottom surface of the groove portion 142 and locked in the fully open state as compared with the fully closed state.

[0041] As shown in FIG. 6, on the support member 140, an inclination is provided so as to approach the other support member 130 toward the rear side of the vehicle over the entire portion of the bottom surface of the groove portion 142 except for the fully closed position 142a and the fully open position 142b. That is, the rod position 123b(iii) is higher than the rod position 123b(ii) and closer to the other support member 130. Therefore, rattling of the movable glass 120 generated when the movable glass 120 is slid toward the rear side of the vehicle can be suppressed. Further, as the movable glass 120 is slid toward the rear side of the vehicle, the support members 130 and 140 approach each other, so the resistance during sliding increases. Therefore, when fully opening, the tendency of the rods 123a and 123b to contact the rear ends of the support members 130 and 140 on the vehicle rear side can be suppressed. Thus, in the present embodiment, when the rods 123a and 123b contact the rear ends of the support members 130 and 140 on the vehicle rear side, the load applied to the rods 123a and 123b can be suppressed, so breakage of the rods 123a and 123b can be prevented.

[0042] <Embodiment 2> FIG. 7 is a schematic partial cross-sectional view of a support member 240 included in the vehicle window glass 100 according to Embodiment 2 of the present invention, and is a diagram schematically showing a cross section when the support member 240 is cut along the extending direction of the groove portion 242. In the present embodiment, an inclination having a V-shaped cross section is provided in the support member 240. In the present embodiment, since the members other than the support member 240 have the same configuration as in Embodiment 1, the description thereof is omitted.

[0043] As shown in FIG. 7, in the present embodiment, the bottom surface of the groove portion 242 has a V-shaped cross section such that both ends of the bottom surface of the groove portion 142 in the vehicle longitudinal direction approach the other support member 130 at locations other than the fully closed position 242a and the fully open position 242b. That is, two inclinations are provided in the support member 240 so as to approach the other support member 130 from the central portion of the groove portion 142 toward the front side or the rear side of the vehicle. Note that the support member 130 may be provided with a groove portion having a shape corresponding to the groove portion 242 provided in the support member 240.

[0044] The support member 240, with a V-shaped cross-section, can suppress the rattling of the movable glass 120 that occurs when sliding the movable glass 120 forward or backward of the vehicle. Also, as the movable glass 120 slides forward or backward of the vehicle, the support members 130 and 240 approach each other, increasing the resistance during sliding. Therefore, when fully closing or fully opening, the tendency of the rods 123a and 123b to contact the rear ends of the support members 130 and 240 on the vehicle side can be suppressed. Thus, in this embodiment, when the rods 123a and 123b contact the front or rear ends of the support members 130 and 240 on the vehicle side, the load applied to the rods 123a and 123b can be suppressed, preventing damage to the rods 123a and 123b.

[0045] <Embodiment 3> FIG. 8 is a partial cross-sectional schematic view of a support member 340 included in the vehicle window glass 100 according to Embodiment 3 of the present invention, and is a view schematically showing a cross-section when the support member 340 is cut along the extending direction of the groove portion 342. In this embodiment, two inclinations are provided on the support member 340. In this embodiment, since the members other than the support member 340 have the same configuration as in Embodiments 1 and 2, the description thereof is omitted.

[0046] As shown in FIG. 8, in this embodiment, two inclinations are provided such that both ends of the bottom surface of the groove portion 342 in the vehicle front-rear direction approach the other support member 130 at locations excluding the fully closed position 342a and the fully open position 342b of the bottom surface of the groove portion 342. That is, the support member 340 has two inclinations such that the central portion of the groove portion 342 is substantially horizontal and approaches the other support member 130 from the central portion of the groove portion 342 toward the front and rear ends on the vehicle side. In this embodiment, the same effects as in Embodiment 2 are achieved. Note that the support member 130 may be provided with a groove portion having a shape corresponding to the groove portion 342 provided in the support member 340.

[0047] As described above, the present invention has been described in accordance with the above embodiments. However, the present invention is not limited only to the configurations of the above embodiments, and of course includes various modifications, corrections, and combinations that can be made by those skilled in the art within the scope of the invention of the claims of the present patent application.

Explanation of Signs

[0048] 10 Vehicle 20 Slide Door 30 Side Door 40 Window Glass 100 Window Glass for Vehicle 110 Fixed Glass 120 Movable Glass 121 Frame 122 Glass Plate 123a, 123b Rod 124 Cap 125a, 125b Spring 126 Cover 127a, 127b Pin 128 Seal Member 129 Moldings 130a, 130b Leaf Spring 130, 140, 240, 340 Support Member 131, 132, 141, 142, 242, 342 Groove Portion 141a, 142a, 242a, 342a Fully Closed Position 141b, 142b, 242b, 342b Fully Open Position

Claims

1. A vehicle window glass comprising a fixed glass having an opening and fixed to a vehicle, a movable glass configured to be fitted into the opening of the fixed glass, and a pair of support members that sandwich the movable glass from above and below and support it slidably with respect to the fixed glass, wherein a groove portion is provided in the pair of support members along the sliding direction of the movable glass, the pair of support members are made of resin, at least one of the pair of support members has an inclination on the rear side of the vehicle such that the bottom surface of the groove portion approaches the other support member, a ratio of a height of the inclination of the bottom surface of the groove portion to an overall length of the support member is 0.03% or more and 1.0% or less, the vehicle window glass.

2. A height of the inclination of the bottom surface of the groove portion is 0.3 mm or more and 5 mm or less, the vehicle window glass according to claim 1.

3. The pair of support members support the movable glass substantially horizontally when the opening is fully closed by fitting the movable glass into the opening of the fixed glass, the vehicle window glass according to claim 1 or 2.

4. At least one of the pair of support members has an inclination on the rear side of the vehicle such that it approaches the other support member, the vehicle window glass according to claim 1 or 2.

5. The pair of support members have an inclination on the rear side of the vehicle such that the bottom surface of the groove portion approaches the other support member, the vehicle window glass according to claim 1 or 2.

6. The bottom surface of the groove portion is provided with a step so as to be lower than locations other than the fully closed position and the fully open position at the fully closed position and the fully open position, the vehicle window glass according to claim 1 or 2.

7. At least one of the pair of support members has a V-shaped cross section such that both ends of the bottom surface of the groove portion in the vehicle front-rear direction approach the other support member at locations excluding the fully closed position and the fully open position of the bottom surface of the groove portion, the vehicle window glass according to claim 1 or 2.

8. At least one of the pair of support members is provided with two inclinations such that both ends of the bottom surface of the groove portion in the vehicle front-rear direction approach the other support member at locations excluding the fully closed position and the fully open position of the bottom surface of the groove portion, the vehicle window glass according to claim 1 or 2.

9. The movable glass includes a frame body which is a rectangular member having an opening at the center, and a pair of rods attached to an end on the rear side of the vehicle of the frame body. The vehicle window glass according to claim 1 or 2, wherein the pair of rods are slidably fitted into the groove portions provided in the pair of support members at the upper end or the lower end.

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