JP2588790Y2 - Car window glass holder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile window glass holder connected to an automobile window glass elevating device.

[0002]

2. Description of the Related Art A window glass elevating device for an automobile is mounted by attaching a plate to both sides of a window glass provided with mounting holes via rubber shims and washers and tightening together with an elevating arm with bolts and nuts integral with the plate. However, bolts and nuts integral with the plate are costly for molding reasons. Therefore, plate and bolt
Attempts have been made to mold and assemble the nut separately, or to try to integrate the two, but the former has a large number of parts and is cumbersome to install, and at the time of fastening due to poor contact between the plate surface and the glass surface. There is a problem that glass breakage, loosening, and the like occur, while the latter has a problem that the pull-out strength is insufficient, so that accurate tightening cannot be obtained and it has not yet been put to practical use.

[0003]

The problem to be solved by the present invention is to solve the above-mentioned problems, the number of parts is small, the mounting work is simple, and there is no excessive tightening or lateral displacement. An object of the present invention is to provide a holder for a window glass of an automobile, which has sufficient strength and can be properly tightened.

[0004]

According to the present invention, there is provided a vehicle window glass holder in which the above-mentioned problems are solved. A holding plate is attached to a female screw cylinder portion which can be loosely inserted into a mounting hole formed in the window glass. A bolt having a nut and a screw member provided with a knurled shaft portion, which is press-fitted and integrated with the knurled shaft portion into the center hole of the plate member, and a holding plate is stretched on a screw shaft portion which can be screwed into the female screw tube portion. And characterized by the following.

[0005]

In such a vehicle window glass holder, a female screw tube portion of a nut is loosely inserted into a mounting hole formed in the window glass from the outside of the window glass, and a holding plate continuously provided at an end thereof is provided. While attaching to the outer surface of the window glass via a washer or the like, the screw shaft portion of the bolt is loosely inserted into the mounting hole from the inside of the window glass and then rotated to screw into the female screw cylinder portion of the nut, and further turned. After the movement, the holding plate connected to the screw shaft portion is tightened by attaching it to the inner surface of the window glass through a washer or the like, and then the lifting arm is attached to the outer surface of the holding plate of the bolt. What is necessary is just to fix to the said screw shaft part with a nut etc.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention. 1 is a nut, and 11 is a bolt used in combination with the nut 1. Nut 1 is window glass 3
A metal nut body in which a holding plate 3 is integrally connected to the outer end of a female screw cylinder portion 2 having an outer diameter that can be loosely inserted into the mounting hole 32 formed in 1 is manufactured by means such as cold heading. Also, if necessary, press plate 3 of this nut body
A cushion layer 4 made of a thermoplastic synthetic resin elastomer and having a thickness of about 0.5 to 1.5 mm is provided on the inner surface of the window glass 31 at the inner peripheral edge of the center hole thereof in the mounting hole 32 of the window glass 31. The short tube portion 4a is provided in a vertically suspended state. The cushion layer 4 may be a rubber shim and a washer formed by hand fitting. However, in order to accurately attach the cushion layer 4 to the inner surface of the pressing plate 3, the cushion layer 4 may be cushioned to the pressing plate 3 of the nut body by an insert molding method or the like. It is preferable that the layer 4 is integrally formed or a molded body formed in a separate process is integrally fitted therein. Particularly, in consideration of cost and the like, as shown in the embodiment, it corresponds to the outer diameter of the holding plate 3. A molded body made of a thermoplastic synthetic resin elastomer, in which an engaging claw 6 is disposed at the opening edge of a shallow dish-shaped container having an inner diameter, and a short cylindrical portion 4a for protecting an edge is provided in the center, is formed in advance. Then, the nut body is fitted into this molded body, and the engaging claw 6 is engaged with the outer edge of the holding plate 3 to be integrated.

On the other hand, a bolt 11 used in combination with the nut 1 is provided between a screw shaft portion 12 having a screw diameter capable of being screwed to the female screw tube portion 2 of the nut 1 for preventing rotation and retaining. Knurled shaft 12c and flange 12
b is formed by expanding the diameter of the screw shaft member 12a,
The plate member 13a having the center hole 13b is press-fitted and integrated with the center hole 13b of the plate member 13a such that the knurled shaft portion 12c of the screw shaft member 12a is flush with the flange portion 12b and the surface of the holding plate 13. Things
The screw member 12a and the plate member 13a are both made of metal and manufactured by means such as cold heading. The screw member 12 is inserted into the center hole 13b of the plate member 13a.
In order to press-fit and integrate the knurled shaft portion 12c so that the surfaces of the flange portion 12b and the holding plate 13 are flush with each other, for example, the knurled shaft portion 12c is
The diameter of the center hole 13b of the plate member 13a is made slightly larger than that of the center hole 13b of the plate member 13a while the diameter of the flange portion 12b is made slightly larger than the outer diameter of the knurled shaft portion 12c.
b, the knurled shaft-side end of the screw shaft member 12a is inserted and pressurized, and first the flange portion 12b
a until the knurled shaft portion 12c contacts the center hole 13
Press into b. Then, by continuing to pressurize, the flesh near the opening of the center hole 13b of the plate member 13a pressed by the flange portion 12b bites into the groove bottom of the knurled shaft portion 12c, and the outer end face of the knurled shaft portion 12c and the flange. When the outer end surface of the portion 12b and the both surfaces of the plate member 13a are substantially flush with each other, press-fitting is stopped or the like, and press-fitting is integrated.

The inner surface of the holding plate 13 of the bolt body also has a thickness of 0.5 made of a thermoplastic synthetic resin elastomer, if necessary, as in the case of the nut.
A cushion layer 14 of about 1.5 mm is provided. The cushion layer 14 may be a rubber shim or a washer formed by hand fitting. However, in order to accurately attach the cushion layer 14 to the inner surface of the holding plate 13, a means such as an insert molding method is used for the holding plate 13 of the nut body. It is preferable to integrally form the cushion layer 14 by molding or to integrally fit a molded body formed in a separate step. Particularly, in consideration of cost and the like, as shown in the embodiment, the outer diameter of the holding plate 13 A molded body made of a thermoplastic synthetic resin elastomer having an engaging claw 16 provided at the opening edge of a shallow dish-shaped container having a corresponding inner diameter and a short cylindrical portion 14a for hole edge protection projected in the center is preformed. In advance, the nut body is fitted into this molded body, and the engaging claw 16 and the outer edge of the holding plate 13 are engaged to be integrated.

The thermoplastic synthetic resin elastomer used as the material of the cushion layers 4 and 14 is more durable and more durable than the polyamide resin used as a material of a washer for attaching a conventional window glass elevating device of this kind. Particularly preferred are those which are not inferior in strength and have excellent cushioning property. For example, Hytrel resin which is a thermoplastic polyetherester elastomer (trade name,
Toray Co., Ltd.) or a polyester-based elastomer such as perprene resin (trade name, manufactured by Toyobo Co., Ltd.) can be used. If the thickness of the cushion layers 4 and 14 is 0.5 mm or more, the rubber shim is omitted. Even when the glass slides, the cushioning layers 4 and 14 absorb the curved glass surface, and the holding plates 3 and 13 are tightened with a constant surface pressure. Since the stress on the glass is stabilized, the glass can be smoothly moved up and down with little backlash.

The reason why the cushion layers 4 and 14 are preferably made of the above-mentioned synthetic resin elastomer is based on the experimental results of the relationship between the tightening torque T (kg) and the axial force (kg) depending on the material. This will be described with reference to FIG. In FIG. 3, H denotes a case where Hytrel resin as an example of the synthetic resin elastomer is used, and N denotes a case where 6 nylon which is a typical polyamide resin is used as the cushion layer. Here, when compared at a torque of 100 kg-cm, the axial force of Hytrel resin H is 135 kg, and that of nylon 6 N is 235 kg.
Therefore, it can be seen that the Hytrel resin H relaxes the stress by 43% compared to 6 nylon N for the same tightening torque of 100 kg. When the tightening torque is small, loosening occurs, which is not preferable. Therefore, it is convenient that the axial force is relaxed and relaxed while securing the high tightening torque. According to the cushion layer of the Hytrel resin H as described above, There is no loosening, and the mounting holes in the window glass are not excessively tightened and no cracks occur. Further, the glass holder thus tightened is pulled in a direction along the window glass surface by a tensile tester,
The results of the lateral slip test were as follows: 6 nylon alone, 6 nylon combined with rubber shim, and Hytrel resin alone had tensile forces of 72.0, 57.0, and 73.3, respectively.
kg, and it was confirmed that Hytrel resin alone was the best.

[0011] The window glass 3 constructed as described above is used.
The thermoplastic synthetic resin integrated with the inner surface of the holding plate 3 connected to one end of the female threaded cylindrical portion 2 of the nut 1 by loosely inserting the female screw cylindrical portion 2 of the nut 1 from the outside of the window glass 31 into the mounting hole 32 formed in the window glass 31. The hole protection short cylindrical portion 4a formed on the inner peripheral edge of the cushion layer 4 made of a resin elastomer is fitted into the mounting hole 32 to attach the cushion layer 4 to the outer surface of the window glass 31. Mounting hole 32
One end of the screw shaft portion 12 of the bolt 11 is loosely inserted into the nut 11 and the turning tool is engaged with a tool engaging portion formed at the other end of the screw shaft portion 12 to turn the bolt 11 so that the nut 1 is rotated. A half of the screw shaft portion 12 is screwed into the female screw tube portion 2 of the above, and further rotated to advance the thermoplastic synthetic resin elastomer on the inner surface of the holding plate 13 stretched in the middle of the screw shaft portion 12. A short cylindrical portion 14 a for protecting the edge of the hole, which is vertically provided in the cushion layer 14, is fitted into the mounting hole 32 to attach the cushion layer 14 to the inner surface of the window glass 31. If the lifting arm 41 is engaged with the protruding end of the protruding screw shaft portion 12 and the lifting arm 41 is tightened and fixed by a nut 42, the bolt 11 becomes a screw shaft having a knurled shaft portion 12c and a flange portion 12b. The member 12a Center hole 13b of the rate members 13a
The knurled shaft portion 12c is press-fitted and integrated with the knurled shaft portion 12c. Is obtained. In addition, the number of parts is small, the mounting operation is simple, and not only there is no poor contact between the plate surface and the glass surface, but also there is no problem that stress is relaxed at the time of fastening and glass breakage or loosening occurs. . Furthermore, even if the window glass surface is curved by the cushion layers 4 and 14, it is effectively absorbed.

Further, as in the embodiment, the holding plate 3,
When the cushion layers 4 and 14 are integrally provided on each inner surface of the plate 13, the workability is improved and the degree of close contact between the plate surface and the glass surface is improved. As molded articles 4 and 14, engaging claws 6 and 16 are arranged at the opening edges of a shallow dish-shaped container made of a thermoplastic synthetic resin elastomer having short edge portions 4 a and 14 a for protecting the edges at the center. The molded body is fitted into a nut body or a bolt body to form the engaging claws 6, 16.
And the holding plates 3 and 13 are integrated by engagement with the outer edges, so that it can be produced at a low cost and cost can be reduced, and a plurality of parts such as rubber shims and washers are manually attached to both sides of the window glass in an assembly line. The work of fitting can be omitted, and the short tube portions 4a and 14a for protecting the edge of the hole of the nut 1 and the bolt 11 are easily and accurately fitted in the mounting hole 32 of the window glass 31 in a short time, so that the improper installation is reduced. In addition, the cushion layers 4 and 14 made of a thermoplastic synthetic resin elastomer provided with the short edge portions 4a and 14a for protecting the hole edges are provided on the inner peripheral edge.
This is particularly preferable since there is no danger of glass breakage or loosening of the plate at the time of fastening due to the cushion effect described above.

[0013]

[Effect of the Invention] As is clear from the above description, the present invention
The holding plate for both the bolt and nut is integrated with the screw shaft and the female screw cylinder, so the number of parts is small and the mounting work is easy, and since this integration is press-fitting on the knurled shaft, the pull-out strength is sufficient. It has features such as accurate tightening, stress on the glass is relieved, and the holder is not easily displaced from the crow. Therefore, the present invention has an extremely large practical value as a solution to the problem of the conventional window glass holder of this kind.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional front view showing the embodiment of the present invention.

FIG. 3 is a graph of an experimental result showing a relationship between a torque and an axial force depending on a difference in material of a cushion layer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nut 2 Female screw cylinder part 3 Holding plate 4 Cushion layer 4a Hole protection short cylinder part 11 Bolt 12 Screw shaft part 12a Screw shaft member 12b Flange part 12c Knurled shaft part 13 Holding plate 13a Plate member 13b Center hole 14 Cushion layer 14a Short tube part for hole protection 16 Engagement claw

──────────────────────────────────────────────────続 き Continuing from the front page (72) Hiromichi Mizuno 1-8-1 Takahashi, Oguchi-machi, Niwa-gun, Aichi Prefecture Inside Aoyama Seisakusho Co., Ltd. (72) Atsushi Kato 1-8-8 Takahashi, Oguchi-machi, Niwa-gun, Aichi Prefecture Inside Aoyama Works (56) References Japanese Utility Model 6-71847 (JP, U) Japanese Utility Model 1-147115 (JP, U) Japanese Utility Model Utility Model 61-80989 (JP, U) Japanese Utility Model 2-60001 (JP, U) U) Japanese Utility Model Hei 5-77606 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B60J 1/17 E05F 11/38 F16B 37/04

Claims (4)

(57) [Scope of request for utility model registration] A screw having a nut (1) having a holding plate (3) stretched over a female screw cylinder (2) that can be loosely inserted into a mounting hole formed in a window glass, and a knurled shaft (12c). Shaft member (12
a) into the center hole (13b) of the plate member (13a) with the knurled shaft (12c) by press-fitting and integrating.
(2) A holder for a window glass of an automobile, comprising: a bolt (11) in which a holding plate (13) is stretched on a screw shaft portion (12) that can be screwed into (2). 2. A flange member (12b) is stretched at an end of the knurled shaft portion (12c), and a plate member (13a) is formed so that the surface of the flange portion (12b) and the surface of the holding plate (13) are flush with each other. 2. The vehicle window glass holder according to claim 1, wherein the knurled shaft portion (12c) of the screw shaft member (12a) is press-fitted and integrated into the center hole (13b) of the vehicle. 3. The holder for a window glass of an automobile according to claim 1, wherein cushion layers (4) and (14) are integrally provided on inner surfaces of the holding plates (3) and (13). 4. An opening of a shallow dish-shaped container in which the cushion layers (4) and (14) are made of a thermoplastic synthetic resin elastomer having a short edge portion protecting portion (4a) and (14a) at the center. Engagement claw on edge
(6) A molded body provided with (16), wherein the molded body is fitted into a nut main body or a bolt main body to form the engaging claw (6).
4. The windowpane holder for an automobile according to claim 3, wherein the holder is integrally formed by engaging the outer edges of the holding plates (3) and (13).