JPH1111151A - Sash door lower combining structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and costlessly combine the top of a sash lower with the bottom of a door sash whose lower part is mounted to a door body without providing complex plate process for the door sash and the sash lower, by using resin joints. SOLUTION: The lower part of a metal door sash 2 is placed in a metal door body 1, and is mounted to the door body 1 by welding. After a door latch 5 with a door lock mechanism is mounted, the top of a metal sash lower 3 is combined with the bottom of the door sash 2. The combining is performed using a resin joint 4, and the bottom of the sash lower 3 is fixed to a door panel 1A through an attachment bracket 6 using attachment bolts 7. The joint 4 has an inserting part 4 which is inserted into a close cross section 2A of the door sash 2 on its upper part, and has a holding part 4B which holds the top of the sash lower 3 from outside on its lower part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a door sash for guiding up and down movement of glass in a door of a vehicle such as an automobile. The present invention relates to a sash door lower connection structure of a type for connecting upper ends.

[0002]

2. Description of the Related Art Generally, in a door of a vehicle such as an automobile, a lower portion of a door sash for guiding the ascending and descending of a window glass is housed and mounted in a door body. When the window is opened, the window glass is housed in the door body. It is configured as follows. However, as shown in FIG. 10 (B), a door latch 35 as a door opening / closing mechanism is attached to the door body 1 including the door inner panel 1A and the door outer panel 1B located below the door sash 30. Usually, the attachment of the door sash 30 to the door body 1 is a welding process,
Since the attachment of the door latch 35 to the door main body 1 is an outfitting process, the door sash 30 that has been attached in advance hinders the work of attaching the door latch 35.
For this reason, in general, a type in which a lower portion of a door sash is divided from an upper portion to form a sash lower in a door body, and an upper end of the sash lower is assembled to a lower end of the door sash in an outfitting process and widely used.

FIG. 8 shows a sash door lower coupling structure of this type, which is disclosed in Japanese Patent Laid-Open Publication No. 7-2.
This is a first conventional example disclosed in Japanese Patent No. 37450. The first conventional example will be briefly described with reference to FIGS.
As shown in FIG. 3, a bracket 20 as a connecting member is attached to the upper end of the rear lower sash 40,
Thus, the upper sash (door sash) 30 and the lower sash 40 are integrally joined. As shown in FIG. 8 (C), the bracket 20 is formed in a shape along the cross-sectional shape of the upper sash 30, and the claws 21a, 21a ', 21c, 22a are integrally formed on the upper edge 21 of the bracket 20 by integral protruding molding. The bracket 20 is alternately inserted into and out of the peripheral wall of the lower end portion 31 of the upper sash 30, and the lower portion of the wall surface of the bracket 20 on the vehicle interior side is cut obliquely (23). Thus, the processing of the lower sash 40 having a simple structure is facilitated, and the cut portion 23 at the lower wall portion of the bracket 20 allows water droplets transmitted to the upper sash 30 to flow toward the lower sash 40 without leaking into the vehicle interior. it can.

FIG. 9 shows such a sash door lower connection structure. In the second conventional example shown in FIG. 9A, a door sash 30 is connected to a lower sash 40 via a bracket 20 formed by processing a sheet metal. The bracket 20 is fixed to the upper end of the lower sash 40 by welding. Then, the bracket 20 is fitted to the lower end of the door sash 30 and joined by caulking or the like. In the third conventional example shown in FIG. 9B, a hook piece 40A is formed at the upper end of the lower sash 40, and a locking hole 30A is formed at the lower end of the door sash 30. The lower sash 40 is connected to the door sash 30 by the engagement between the piece 40A and the locking hole 30A.

[0005]

However, in the conventional structure constructed as described above, in the first and second conventional examples, the complicated processing of the bracket 20 itself as the connecting member is difficult. In addition, since a welding process of the bracket 20 to the lower sash 40 is required, the cost is increased. In addition, since the door sash 30 is normally processed by press cutting with a low-cost press, it is difficult to obtain a high-precision cross-sectional shape. Therefore, the fitting accuracy between the bracket 20 and the lower sash 40 is low, and during long-term use, Unusual noise due to backlash etc. tended to occur. In the third conventional example, a hook piece 40A must be protruded from the upper end of the lower sash 40, which is troublesome.
There is also a risk of generating abnormal noise due to backlash or the like in the front-rear direction or the left-right direction of the vehicle body during traveling in the engagement portion with the locking hole 30A.

Therefore, the present invention solves the above-mentioned problems in the conventional sash door lower connecting structure for a vehicle, and makes it possible to easily assemble the door sash and the sash lower at low cost without requiring complicated sheet metal processing. It is an object of the present invention to provide a sash door lower coupling structure which can be performed and is free from generation of backlash and abnormal noise.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a vehicle sash door lower connecting structure for connecting an upper end of a sash lower to a lower end of a door sash mounted such that a lower portion is located in a door body. The lower end of the door sash and the upper end of the sash lower are joined by a resin joint. Further, the present invention is characterized in that an insertion portion to be inserted into a closed cross section of the door sash is formed at an upper portion of the joint, and a holding portion for holding an upper end portion of the sash lower is formed at a lower portion. It is. Further, the present invention is characterized in that a tapered portion is formed at each of an upper end portion of the insertion portion and a lower end portion of the holding portion in the joint. Further, the present invention is characterized in that a retaining structure is formed which engages at least a coupling member of each of the holding portion of the joint and the upper end portion of the sash lower with a pair of locking members. Further, the present invention is characterized in that an insertion portion symmetrical to an insertion portion formed at an upper portion of the holding portion of the joint is also formed at a lower portion. The present invention also provides
The joint is formed integrally with the upper end of the sash lower, and these are used as means for solving the problem.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. FIG. 1 (A) is a side view of the inside of a door near a sash door lower connection structure, and FIG. 1 (B) is a door sash and a sash lower. E of FIG. 1 (A) showing the enlarged joint portion of FIG.
It is an arrow view. FIG. 2 is a cross-sectional view of each part in FIG. FIG. 3 is a perspective view, a front view, and a side view of the joint of the present invention. As shown in FIG. 1A, in a welding process, a lower portion of a metal door sash 2 located in the door main body 1 is attached to the metal door main body 1 by welding or the like. Thereafter, a door latch 5 having a door locking mechanism and the like is attached to the door panel 1A in the outfitting process through a painting process and the like. After the door latch 5 is attached, the upper end of the metal sash lower 3 is attached to the lower end of the door sash 2. They are joined by a joint 4. The lower end of the sash lower 3 is fixed to the door panel 1A by a mounting bolt 7 via a mounting bracket 7.

The joint 4 according to the present invention is made of a flexible resin. As shown in FIGS. 1B and 3, in the first embodiment, the door sash 2 is An insertion portion 4A to be inserted into the closed section 2A is formed, and a holding portion 4B having a substantially U-shaped cross section is formed at a lower portion so as to hold the upper end of the sash lower 3 from the outside. Flanges 4F, 4F are formed facing opposite edges of the holding portion 4B. Door sash 2
The closed cross-section 2A is raised in the vehicle compartment side (toward the paper surface in FIG. 1A) in parallel with a groove-shaped rail portion 2B serving as a rail when a window glass 8 described later is guided up and down. The plate body constituting the door sash 2 is folded back to form a reinforcing structure of the door sash 2 and a finishing portion of the window frame on the vehicle interior side. The sash lower 3 has a groove-shaped rail portion 2 of the door sash 2.
A rail portion 3B having the same cross-sectional shape as that of the rail portion B extends in the lengthwise direction.
C and 3C are formed.

Thus, in the outfitting process, after the door latch 5 is attached, the flanges 4F at both ends of the holding portion 4B are previously inserted into the edge grooves 3C, 3C of the sash lower 3 by a hand or the like inserted from the working hole in the inner panel of the door body. , 4
The sash lower 3 is easily and easily inserted into the door sash 2 by press-fitting the insertion portion 4A at the upper part of the joint 4 to which the F is slid and fixed from below the closed section 2A of the door sash 2. Can be combined. FIG. 2 shows the door sash 2 thus joined.
FIG. 2 shows cross sections of A, B, C, and D in FIG. In addition, in each cross-sectional view of FIG. 2, a rubber run channel 9 and a window glass 8 for dust prevention and waterproof attached to the rail portion of each sash are depicted. FIG. 2A shows a portion located outside the upper part of the door body 1, and FIG. 2D clearly shows that the lower end of the sash lower 3 is attached to the door panel 1A by the attachment bracket 6. 2B, the relationship between the closed section 2A of the door sash 2 and the insertion portion 4A of the joint 4 is clear, and in FIG. 2C, the relationship between the sash lower 3 and the holding portion 4B of the joint 4 is clear. I understand.

According to the present invention, the connecting operation of the door sash 2 and the sash lower 3, which is a hand digging operation through the working hole of the door panel in the outfitting process, simply involves inserting the insertion portion 4A of the joint 4 into the door sash 2.
By simply press-fitting and inserting into the closed cross-section 2A, it can be easily and easily performed.

FIG. 4 shows a second embodiment of the present invention. This embodiment is the same as the first embodiment described above, except that the upper end of the insertion portion 4A of the resin joint 4 and the housing are formed. Tapered portions 4C and 4D each having a predetermined angle θ are formed at the lower end of the holding portion 4B. That is,
The upper end of the insertion portion 4A of the joint 4 inserted into the lower end of the closed cross-section 2A of the door sash 2 is formed into a tapered portion 4C that shrinks at a predetermined angle θ to hold the upper end of the sash lower 3. The lower end of the holding portion 4B to be inserted is formed as a tapered portion 4D that expands at a predetermined angle θ. Thus, the joint 4 can be smoothly connected to the door sash 2 and the sash lower 3 without damaging the joint 4. Although these tapered portions are formed on the joint 4 side, they may be formed on the corresponding portions on the door sash 2 and the sash lower 3 side in some cases.

FIG. 5 shows a third embodiment of the present invention. In this embodiment, at least the holding portion 4A of the joint 4 is different from that of the above-described embodiment.
A retaining structure is formed as a pair of locking members, which are engaged with the holes 3E and the projections 4E, at a coupling portion between the upper end of the sash lower 3 and the sash lower 3. In the example of FIG. 5, a hole 3E is provided at the upper end of the sash lower 3, and a joint 4 is provided.
It is needless to say that the projection 4E is provided inside the holding portion 4A, but the projection may be provided on the sash lower 3 side and the hole may be provided on the holding portion 4A side of the joint 4. Although not shown, if necessary, a retaining structure can also be adopted between the insertion section 4A of the joint 4 and the closed section 2A of the door sash 2. With such a configuration, the connection between the door sash 2 and the sash lower 3 by the joint 4 can be prevented from being unnecessarily removed, and the reliability is improved.

FIG. 6 shows a fourth embodiment of the present invention. This embodiment is formed on the holding portion 4B of the joint 4 of each of the above-described embodiments. An insertion part 4A 'symmetrical to the insertion part 4A is also formed at the lower part. By using the joint 4 having such a configuration upside down, the joint 4 can be used on either side of the door sash 2.
When connecting the sash lower 3 and the sash lower 3, the sash lower 3 can be used as a compatible connecting part, and the convenience in assembling is excellent. In addition, only one type of mold is required for molding the joint 4.

FIG. 7 shows a fifth embodiment of the present invention, which is characterized in that the joint 4 is formed integrally with the upper end of the sash lower 3. . In this embodiment, a resin joint 4 is integrally fixed to the upper end of the metal sash lower 3 by injection molding or the like. With such a configuration, the step of connecting the sash lower 3 and the joint 4 in the outfitting step can be omitted. When the sash lower 3 can be replaced with metal and a resin component can be adopted, the joint 4 may be integrally formed when the sash lower 3 is formed.

Although the embodiments of the present invention have been described above, the shapes and materials of the door sash and the sash lower including the closed cross-section, the connection positions thereof, the insertion portion, and the like are included within the scope of the present invention. The shape and material of the joint including the holding portion, the connection form of the joint with the door sash and the sash lower, and the retaining structure between them can be appropriately adopted.

[0017]

As described above in detail, according to the present invention, a metal door sash and a sash lower having a simple structure having no complicated structure at the end are made of a relatively flexible resin sash. Since the door sash and the sash lower can be joined by the joint, the joining operation of the door sash and the sash lower can be easily and simply performed simply by press-fitting and inserting the insertion portion of the joint into the closed cross section of the door sash.
In addition, the door sash and sash lower structure itself is not only simple and good, but also high precision is not required in the cross-sectional shape and length of the dimensions, and these dimensional accuracy errors are sufficiently absorbed by the flexibility of the joint. In addition to this, it is possible to eliminate the generation of abnormal noise due to backlash in the front-rear direction or the left-right direction of the vehicle body during traveling due to the connection between the metals. Further, unlike the conventional one, there is no possibility that rust is generated by peeling of the painted portion due to backlash or the like at the joint between the metals. Therefore, a door sash or a sash lower processed at a low cost by press cutting or the like with a normal press can be employed as it is without any specially complicated processing, and it is inexpensive.

Also, the taper portion having a predetermined angle is formed at each of the upper end portion of the insertion portion of the joint and the lower end portion of the holding portion, so that the joint can be smoothly connected to the door sash and the sash lower without damaging the joint. Can be done. Further, at least the joint between the holding portion of the joint and the upper end portion of the sash lower is provided with a retaining structure that engages with a hole and a projection. Can be prevented from being detached, thereby improving reliability. Furthermore, in the case where the insertion portion formed symmetrically to the insertion portion formed at the upper portion of the holding portion of the joint is also formed at the lower portion, by using the joint having such a configuration upside down, When connecting the joint between the door sash and the sash lower on the left or right side, it can be used as a compatible connecting part, which is convenient at the time of assembly. Only one type is required. In the case where the joint is formed integrally with the upper end of the sash lower, the step of connecting the sash lower and the joint in the outfitting step can be omitted.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a sash door lower connection structure of the present invention, wherein FIG. 1 (A) is a side view of the inside of a door near the sash door lower connection structure, and FIG. 1 (B) is a door. FIG. 1 is an enlarged view of a joint between a sash and a sash lower.
It is an arrow E view of (A).

FIG. 2 is a cross-sectional view of each part in FIG.

FIG. 3 is a perspective view, a front view, and a side view of a joint according to the first embodiment of the sash door lower coupling structure of the present invention.

FIG. 4 is a view showing a second embodiment of the sash door lower coupling structure of the present invention.

FIG. 5 is a view showing a third embodiment of a sash door lower coupling structure of the present invention.

FIG. 6 is a diagram showing a sash lower coupling structure according to a fourth embodiment of the present invention.

FIG. 7 is a view showing a fifth embodiment of the sash door lower coupling structure of the present invention.

FIG. 8 is a diagram showing a first conventional example of a sash door lower coupling structure.

FIG. 9 is a diagram showing a second and a third conventional example of a sash door lower coupling structure.

FIG. 10 is a view showing a general conventional example showing a relationship between a sash door lower coupling structure and a door latch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door main body 1A Door panel (inner) 2 Door sash 2A Closed section 3 Sash lower 4 Joint 4A Insertion part 4B Holding part 5 Door latch 6 Mounting bracket 7 Mounting bolt 8 Window glass 9 Run channel

Claims (6)

[Claims] 1. A vehicle sash door lower coupling structure for coupling an upper end of a sash lower to a lower end of a door sash whose lower part is located inside a door body, wherein the lower end of the door sash and the upper end of the sash lower. And a sash door lower connection structure, wherein the sash door lower connection structure is joined by a resin joint. 2. An upper part of the joint is formed with an insertion part to be inserted into a closed cross section of the door sash, and a lower part is formed with a holding part for holding an upper end of the sash lower. Item 3. A sash door lower coupling structure according to item 1. 3. The sash door lower coupling structure according to claim 2, wherein a tapered portion is formed at each of an upper end portion of the insertion portion and a lower end portion of the holding portion in the joint. 4. The retaining structure according to claim 1, wherein a retaining structure is formed to engage at least a pair of engaging members of a holding portion of the joint and an upper end of the sash lower with a pair of engaging members. The sash door lower coupling structure according to any one of the above. 5. The sash door according to claim 1, wherein an insertion portion symmetrical to an insertion portion formed at an upper portion of the holding portion of the joint is also formed at a lower portion. Lower coupling structure. 6. The sash lower according to claim 1, wherein the joint is formed integrally with the upper end of the sash lower.
The sash door lower coupling structure according to 1.