JP6657726B2 - Vehicle door lower sash - Google Patents

Description

  The present invention relates to a door lower sash of a vehicle, and more particularly, to a door lower sash of a vehicle that guides a vertical movement of a window glass accompanying opening and closing.

  2. Description of the Related Art Conventionally, a vehicle is provided with a sash that guides the raising and lowering of a window glass from its top dead center to its bottom dead center when opening and closing the window of the door. This sash is a so-called door sash which is constituted by a door outer panel and an inner panel at the upper window of the door, and is separate from the door sash below the window of the door. It is composed of a door lower sash, which is a part of the product.

  The door lower sash is usually provided in the door, and when opening the window, the window glass descends along the door lower sash, and is stored and held in the correct position by the door lower sash, and the window is opened. The condition is well maintained.

  By the way, the door lower sash for guiding the ascending and descending of the window glass has conventionally been formed of sheet metal parts. However, in recent years, a demand for a lighter vehicle has demanded a resin door lower sash. In general, the door sash itself has a concave groove formed in a substantially U-shaped horizontal cross section and connected vertically, and the window sash can be moved up and down with the concave groove, The movement of the glass in the thickness direction (vehicle width direction) is regulated.

  In addition, door lower sashes are required not only to raise and lower the window glass, but also to keep the window glass from fluttering when it is closed (when it is at the top dead center when it is completely raised). ing. For this reason, the window glass is held via a glass run which is a rubber-like member fitted in the concave groove of the door lower sash. This glass run has a role of making the window glass slippery during the elevating motion and a role of preventing sound from leaking into and out of the vehicle interior. The glass run is fixed by a claw-shaped portion provided on the door lower sash.

By the way, the resin door lower sash is different from the sheet metal part, because the claw-shaped portion provided for fixing the glass run is easily deformed, and the concave groove itself is easily opened. There was a large fluttering problem and the door quality was poor.
Therefore, conventionally, a door lower sash as disclosed in Patent Document 1 has been proposed. The door lower sash is integrally formed by injection molding with a resin, and has a concave groove extending vertically. A window glass and a glass run for holding the window glass are accommodated in the concave groove of the door lower sash.

JP 2000-280740 A

    However, even in the sash disclosed in Patent Document 1 described above, since the door lower sash is made of resin, its strength is insufficient, and there is still a fear that the window glass in the sash main body will flutter. .

  The present invention has been made in view of such circumstances, and its purpose is to improve the rigidity of the door lower sash, suppress the fluttering of the window glass when the door is opened and closed, and improve the door quality. It is another object of the present invention to provide a door lower sash for a vehicle, which can reduce the thickness of the door lower sash and contribute to reduction in cost and weight of the vehicle.

In order to solve the above problems, in one aspect of a vehicle door lower sash according to the present invention, in a vehicle door lower sash that guides a vertical movement of a window glass accompanying opening and closing, a front edge or a rear edge of the window glass is provided. A sash body curved in the ascending and descending direction corresponding to the shape, and having a concave groove extending vertically to insert the front edge or the rear edge of the window glass, and mounting provided above and below the sash body for mounting to the door panel Part and a connecting part connecting between the mounting parts are integrally formed of resin, and the concave groove has a back wall located at the bottom of the groove and extending vertically, and side wall parts located on both sides of the back wall. A claw-shaped portion for holding a glass run is provided on each of the side walls on both sides of the concave groove, and the claw-shaped portions on both sides extend vertically and are close to each other. Zu Protrudes as at least partially to face each other, die cut hole for molding the claw-shaped section, provided we are extending vertically to the rear wall at positions corresponding to the claw-shaped portion, whereas The die-cutting hole is arranged vertically offset with respect to the other die-cutting hole, and the upper end of one of the die-cutting holes is disposed at a vertical intermediate part of the other die-cutting hole. The mounting portion is provided outside the side wall portion. Of the two punching holes facing each other near the mounting portion, the punching hole on the mounting portion side is the other of the die holes. It is arranged to be offset in the vertical direction so as to approach the mounting portion with respect to the hole .

  In one aspect of the vehicle sash according to the present invention, the connecting portion is formed in a straight line.

  In one aspect of the vehicle door lower sash according to the present invention, a reinforcing portion extending in a direction normal to a curved shape of the door lower sash is provided between the connection portion and the sash body. It has a configuration.

The present invention in one aspect of the door lower sash of a vehicle according to the present invention is, that have a structure provided with the reinforcing portion in the vicinity of the claw-shaped portion.

  In one aspect of the door lower sash of a vehicle according to the present invention, in a door lower sash of a vehicle that guides a vertical movement of a window glass accompanying opening and closing, a vertical direction corresponding to a shape of a front edge or a rear edge of the window glass. A sash body having a concave groove extending vertically to insert a front edge or a rear edge of the window glass; a mounting portion provided above and below the sash body to be mounted on a door panel; And the connecting portion connecting the two is integrally formed of resin, so that the connecting portion functions to regulate the dimension between the mounting portions, and the connecting portion deforms the central portion of the sash body having relatively low rigidity. Can be regulated.

  Thereby, the rigidity of the door lower sash is improved, and even when the door lower sash is made of resin and is easily deformed, the deformation of the door lower sash is suppressed by the connecting portion. For this reason, the fluttering of the window glass when opening and closing the door due to insufficient rigidity of the door lower sash is suppressed, the door quality is improved, and the rigidity of the door lower sash is increased, so that the door lower sash has a higher rigidity. This makes it possible to reduce the thickness of the vehicle, which can contribute to reducing the cost and weight of the vehicle.

  Furthermore, in one aspect of the door lower sash of the vehicle according to the present invention, since the connecting portion is configured to be formed in a straight line, the load applied to the door lower sash as the windowpane moves up and down is linear. Since the above-mentioned connecting portion serves as a strut and supports the door lower sash, the strength of the door lower sash itself is further increased, and the effect of suppressing the deformation of the door lower sash by the connecting portion is also increased.

  Still further, in one aspect of the door lower sash of the vehicle according to the present invention, a reinforcing portion extending in a direction normal to a curved shape of the door lower sash is provided between the connecting portion and the sash body. With this configuration, the central portion of the sash main body is connected to the rigid mounting portion via the reinforcing portion and the connecting portion, whereby the load applied to the central portion of the sash main body is reduced by the mounting. The central portion of the sash body can be reinforced. Therefore, even if a load is applied to the door lower sash, the deformation of the door lower sash can be suppressed, and in particular, the strength of the door lower sash against the deformation load in the closing direction and the opening direction of the curved shape of the door lower sash is further increased. It is possible to suppress fluttering and omission of the window glass and the glass run.

  Further, since the reinforcing portion is provided in the vicinity of the claw-shaped portion of the sash body, the strength of the portion of the sash body where the claw-shaped portion is formed can be improved by the reinforcing portion. In addition, the load applied to the portion of the sash main body where the claw-shaped portion is formed can be transmitted to the mounting portion via the reinforcing portion and the connecting portion, so that the claw-shaped portion at the center of the door lower sash can be transmitted. Can be suppressed as much as possible. For this reason, it is possible to prevent the claw-shaped portion provided in the sash main body from being deformed in the direction in which the concave groove is expanded, and to reduce the portion reduced by the die-cut hole provided for forming the claw-shaped portion. Can be compensated for.

It is an exploded perspective view showing one embodiment of a door lower sash of vehicles concerning the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows one Embodiment of the door lower sash of the vehicle which concerns on this invention, and shows the mode that the window glass was especially descended to the bottom dead center guided by the door lower sash. It is a perspective view showing the door lower sash in one embodiment of the door lower sash of the vehicles concerning the present invention. It is a front view showing a door lower sash in one embodiment of a door lower sash of vehicles concerning the present invention. FIG. 5 is an enlarged front view showing a portion surrounded by a circle indicated by an arrow A in FIG. 4. FIG. 6 is a sectional view taken along line BB in FIG. 5. FIG. 4A is a diagram showing a door lower sash according to another embodiment of the vehicle door sash according to the present invention, in which FIG. 4A shows a door lower sash in which a pair of claw-shaped portions are provided at a central portion of a sash body; ) Is a diagram showing the transmission of the force applied to the reinforcing portion of the door lower sash shown in (a) in an equivalently deformed manner, and (c) is a diagram in which a pair of reinforcing portions are equivalently 1 as shown in (b). It is a figure showing that it is replaced by one reinforcement part. It is a front view showing door lower sash in other embodiments of the door lower sash of vehicles concerning the present invention.

  Hereinafter, an embodiment of a door lower sash for a vehicle according to the present invention will be described. 1 to 7 show one embodiment of a door lower sash of a vehicle according to the present invention.

  As shown in FIGS. 1 and 2, the door lower sash 10 of the vehicle according to the present embodiment is positioned below the window 20 so as to guide the raising and lowering of the window glass 21 of the door 20 below the window 22. Door inner panel) 23. As shown in FIGS. 3 and 4, the door sash 10 is provided on a sash main body 11 and a vehicle outer side wall portion 11 a of the sash main body at an upper and lower end portion of the vehicle at appropriate intervals in a vehicle width direction. It is configured to include a pair of mounting portions 12 and a connecting portion 13 that connects between the mounting portions.

  Here, the sash main body 11 has a substantially U-shaped horizontal cross-section, and includes a concave groove 14 that extends vertically. The sash main body 11 has a curvature corresponding to the shape of the rear end edge 21a of the window glass 21 and is curved not only in the vehicle front-rear direction but also in the left-right direction with a curvature in accordance with the appearance design of the vehicle. As a result, the window glass 21 moves up and down in the concave groove 14 of the sash main body 11 along the shape of the door lower sash 10, as described later, with the rear edge 21a inserted into the concave groove 14. can do.

  Further, the connecting portion 13 is formed in a straight line. The sash main body 11 is provided with a plurality of pairs of claw-shaped portions 11b, 11b for holding the glass run 30. As shown in detail in FIG. 4, the claw-shaped portions 11b, 11b protrude from the opening sides of the concave grooves 14 of both side walls 11d, 11d of the sash main body 11 so as to face each other. In addition, a pair of reinforcing portions 15, 15 are provided in the vicinity of the pair of claw-shaped portions 11b, 11b located particularly near the central portion 11c of the sash main body 11.

  The pair of reinforcing portions 15, 15 are provided between the connecting portion 13 and the sash main body 11 so as to extend in a direction normal to the curved shape of the door lower sash 10. In the present embodiment, the pair of connecting portions 15 are provided at positions near the center portion 11c of the sash main body 11 so as to sandwich the pair of claw-shaped portions 11b in the vehicle vertical direction.

  In the present embodiment, the sash body 11, the mounting portions 12, 12, the connecting portion 13, and the reinforcing portions 15, 15 of the door lower sash 10 are integrally formed of resin. For this reason, a hole is required in the rear wall 11e of the sash main body 11 for a molding die to enter, and the holes are provided with die-cut holes 11f, 11f. Thus, the claw-shaped portions 11b, 11b of the sash main body 11 can be formed by injection molding (see FIG. 4).

  The door sash 10 is attached to the door panel 23 by fastening the attachment portions 12 and 12 to the door panel 23 using, for example, bolts or screws. A glass run 30 for slidably holding the edge 21a of the window glass 21 is fitted into the concave groove 14 of the sash body 11 of the door sash 10, and is held in the sash body 11 by the claw-shaped portions 11b. Is done.

  In the present embodiment, since the connecting portion 13 that connects the mounting portions 12 is provided, even if a load is applied to the door lower sash 10 when the window glass 21 moves up and down, the connecting portion 13 is connected to the mounting portions 12. Since the door lower sash is supported by functioning to regulate the distance between the sashes, the deformation of the central portion 11c of the sash main body 11 having relatively low rigidity can be regulated. Thus, even when the door lower sash 10 is made of resin and easily deformed, the deformation of the door lower sash can be suppressed by the connecting portion 13.

  For this reason, fluttering of the window glass 21 at the time of opening and closing the door due to insufficient rigidity of the door lower sash 10 is suppressed and the door quality is improved, and furthermore, the rigidity of the door lower sash 10 is increased. This makes it possible to make the door lower sash thinner, which can contribute to reducing the cost and weight of the vehicle.

  Further, in the present embodiment, since the dimension between the mounting portions 12, 12 is regulated by the connecting portion 13, the occurrence of a molding error of the door lower sash 10 which is likely to be caused by the molding shrinkage peculiar to resin molding is suppressed. Therefore, it is possible to prevent problems such as a change in the distance between the mounting portions 12 and 12 and difficulty in assembling the door lower sash 10.

  Further, in the present embodiment, since the connecting portion 13 is formed in a linear shape, the linear connecting portion 13 stretches against a load applied to the door lower sash 10 as the window glass 21 moves up and down. Since the door lower sash 10 is supported by functioning as a rod, the strength of the door lower sash itself is further increased, and the effect of suppressing the deformation of the door lower sash 10 by the connecting portion 13 is also increased.

  Furthermore, in the present embodiment, since the reinforcing portions 15, 15 extending in the normal direction to the curved shape of the door lower sash 10 are provided between the connecting portion 13 and the sash main body 11, the sash is provided. The central portion 11c of the main body 11 is connected to the rigid mounting portions 12, 12 via the reinforcing portions 15, 15 and the connecting portion 13, whereby the load applied to the central portion 11c of the sash main body is reduced. 12 and 12, and can reinforce the central portion 11c of the sash main body 11.

  Therefore, the strength of the sash main body 11 in the direction in which the curved shape is closed and in the direction in which the sash body 11 is opened can be further increased, and the window glass 21 and the glass run 30 can be prevented from fluttering or coming off. Further, since the sash main body 11 is supported from the direction orthogonal to the sash main body by the reinforcing portions 15, the sash main body 11 is deformed by a load applied to the sash main body 11 with the vertical movement of the window glass 21. Can be suppressed. In addition, the reinforcing portion 15 extending in the normal direction of the curved shape of the door lower sash 10 exhibits a supporting effect against a load acting in the direction in which the concave groove 14 of the sash main body 11 opens, and suppresses deformation, so that the window glass is reduced. 21 can be prevented from fluttering.

  Further, in the present embodiment, since the reinforcing portions 15, 15 are provided near the claw-shaped portions 11b, 11b provided near the central portion 11c of the sash main body 11, the claw-shaped portions 11b, 11b of the sash main body 11 are provided. The strength of the portion where the is formed can be improved by the reinforcing portions 15. In addition, the load applied to the portion of the sash body 11 where the claw-shaped portions 11b are formed can be transmitted to the mounting portions 12 via the reinforcing portion 15 and the connecting portion 13, so that the center of the door lower sash 10 can be transmitted. Deformation at the location where the claw-shaped portions 11b, 11b are formed near the portion 11c can be restricted. For this reason, it is possible to prevent the portion provided with the claw-shaped portions 11b, 11b in the vicinity of the center portion 11c of the sash main body 1 from being deformed in the direction in which the concave groove 14 is expanded, and to reduce the claw-shaped portions 11b, 11b. It is also possible to compensate for the strength of the part reduced by the die hole 11f provided for molding.

7 and 8 show another embodiment of the door lower sash of the vehicle according to the present invention.
In the present embodiment, one reinforcing portion 15 is employed instead of the pair of reinforcing portions 15 in the above embodiment. In the above embodiment, as shown in FIG. 7A, the pair of reinforcing portions 15, 15 are provided at positions sandwiching the pair of claw-shaped portions 11 b, 11 b of the sash main body 11 in the vehicle vertical direction. When the reinforcing portions 15 and 15 are deformed from the viewpoint of transmitting force, they are equivalent to the configuration shown in FIG. 7B, and the pair of reinforcing portions 15 and 15 are formed as shown in FIG. It can be replaced with two reinforcing parts 15. The point is that the reinforcing portion 15 may be provided so as to form a truss structure between the mounting portions 12 and 12 having high rigidity and the central portion 11c of the sash main body 11 having relatively low rigidity. The reinforcing portion may be provided so that the load applied to the portion 11 is transmitted from the vicinity of the central portion 11c of the sash main body to the attaching portions 12, 12 via the connecting portion 13, and the number of the reinforcing portions is not particularly limited.

  As shown in FIG. 4, the connecting portion 13 may be provided near the bases of the mounting portions 12 and 12 so as to be installed near the sash body 11, and as shown in FIG. , 12 may be provided near the tip of the sash main body 11.

In the above-described embodiment, the rear edge 21a of the window glass 21 is inserted into the concave groove 14. However, the present invention is not limited to this, and when the door 20 is a front door, the window glass 21 may be inserted. May be inserted into the concave groove 14 of the sash body 11 as a matter of course.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 10 Door lower sash 11 Sash main body 11a Side wall part 11b Claw shape part 11c Central part 11d Side wall part 11e Back wall 11f Die-cut hole 12 Mounting part 13 Connection part 14 Concave groove 15 Reinforcement part 20 Door 21 Window glass 21a Rear edge 22 Window 23 Door panel 30 Glass run

Claims (4)

In a door lower sash for a vehicle that guides a vertical movement of a window glass accompanying opening and closing, a front lower edge or a rear edge of the window glass is curved in a vertical direction corresponding to a shape of a front edge or a rear edge of the window glass. A sash main body having a concave groove extending vertically to insert a sash main body, mounting parts provided on the upper and lower sides of the sash main body for mounting to a door panel, and a connecting part connecting the mounting parts are integrally formed of resin,
The concave groove has a back wall located at the bottom of the groove and extending vertically, and side wall portions located on both sides of the back wall,
On the side wall portion, a claw-shaped portion for holding a glass run is provided on each of the side wall portions on both sides constituting the concave groove, and the claw-shaped portions on both sides extend vertically and approach each other. to protrude at least partially disposed opposite to each other, wherein the die cut hole for molding the claw-shaped portion, said claw-shaped portion extending in the vertical direction is provided, et al is in the rear wall of the positions corresponding to,
One of the die-cut holes is vertically offset with respect to the other die-cut hole, and the upper end of the one die-cut hole is a vertical intermediate part of the other die-cut hole. Are located in
The mounting portion is provided outside the side wall portion, and among the two punched holes facing each other at a position near the mounting portion, the punched hole on the mounting portion side is the other of the punched holes. A door lower sash for a vehicle, wherein the door lower sash is disposed so as to be vertically offset from a hole so as to approach the mounting portion .   The door lower sash for a vehicle according to claim 1, wherein the connecting portion is formed in a straight line.   The vehicle door lower sash according to claim 2, wherein a reinforcing portion extending in a direction normal to a curved shape of the door lower sash is provided between the connecting portion and the sash main body. Doaroasa' shoe for a vehicle according to claim 3, characterized in that a said reinforcing portion in the vicinity of the claw-shaped portion.

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