JPH0680432A - Glass plate having a hole of modified cross section - Google Patents

Abstract

PURPOSE:To ensure the fixation which prevents the deviation in positioning or the rotation of the glass plate and give multifunction by making a hole of not a circle but a modified cross section such as polygonal or eclipses having at least one angle. CONSTITUTION:At first, a hole is bored by means of a flat diamond seama drill of about 8.7 phi at about 8,000 rpm and 150mm/min cutting rate. After drilling, the drill is operated under the NC control to draw a regular triangle as the boring is continued with the scraper at about 8,000 rpm and about 20mm/min cutting feed rate to form the a hole of modified cross section. In the figure, the glass plate has a hole of regular triangle of about 50mm sides and R5 (about 5mm) at each angle corner in the shown position. The glass plate is subjected to bending and tempering to give the product of good quality without any problem. Further, when the glass product is equipped with a wiper set and a pipe of the washer for the wiper, they could be set firmly without problem in its strength and deviation in the positioning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass plate having a non-circular shape, such as a polygon having at least corners, an oval shape or a deformation shape, and a window glass for a vehicle thereof. The present invention provides a glass plate having a modified hole which is useful for building or vehicle window glass or door glass, etc., which can be fixed or can be penetrated while being fixed, and the vehicle window glass.

[0002]

2. Description of the Related Art Conventionally, a glass plate having a circular hole has been used for a door for construction or a window glass for a vehicle. For example, among window glasses for an automobile, a windshield with a wiper or a rear glass, It is a side glass for lifting and the like.

In particular, in the windshield with a wiper or the rear glass, both a circular hole for a wiper and a circular small hole for a washer liquid are arranged in the vicinity of the hole, and because the hole is circular, the wiper blade has a circular hole. It may happen that the stop position changes and the water drop removal range is changed, and the hole for the wiper and the small hole for the washer are close to each other, so that the workability of the hole is poor and the efficiency is not necessarily good.

Further, in the side glass for raising and lowering, it is necessary to arrange a large number of holes such as a circular hole for sliding, a circular hole for stopper and a circular hole for mounting an elevating member. Not only bad and inefficient, but it also affects the yield, and because of the circular shape, holes are needed not only for positioning but also for preventing misalignment and fixing, which is not always sufficient. .

Further, for example, Japanese Examined Patent Publication No. 55-345 discloses a method of cutting a glass plate, and a glass plate is provided with a cutout hole having a polygonal contour with or without an opening at the side edge of the plate. At the time of drilling, at least one side of the cutout hole, which is left on one side, is cut at least by using a cylindrical rotary cutting tool having a glass cutting action surface on the side surface, and the side edge of the glass plate or the hole previously drilled in the glass plate is cut. It is described that the starting point is set and the tool is advanced along the contour to be cut out while rotating the tool at a high speed in a posture in which the rotation center axis of the tool is substantially orthogonal to the glass plate surface.

[0006]

As described above, for example, the circular hole for the wiper or the circular small hole for the washer in the windshield or the rear glass with the wiper cannot be said to be sufficiently fixed depending on the case. Further, it is difficult to say that the workability of punching is necessarily efficient. Furthermore, for example, the circular holes for sliding the lifting side glass, for stoppers, and for mounting the lifting members are inferior in workability of the drilling, are not efficient and easily affect the yield, and require a large number of holes. On the other hand, it is difficult to say that the fixation is sufficiently secure.

Further, for example, in the glass plate cutting method disclosed in Japanese Examined Patent Publication No. 55-345, a cylindrical rotating machine having a cutting surface with one side of the cut hole left as a starting point and the other side left as a starting point. It is performed by advancing along the contour to be cut and cutting while rotating the cutting tool at high speed, cutting the remaining one side with a conventional glass cutter and cutting and separating with impact, and it is said that workability is always good. However, it is difficult to say that it is always possible to easily obtain a hole having a uniform polygonal contour.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above conventional problems, and is not a circular hole but a polygonal shape basically having corners, an ellipse which is not a perfect circle. By forming a glass plate in which at least one or more various holes having a deformed shape such as a combination of a shape or a curved line and the above-mentioned corners and ellipses are formed, fixing of various members in the holes, and in particular, rotational force acts. Fixing or simultaneous fixing of a plurality of penetrating members, etc., can be performed reliably by preventing misalignment, etc., the number of holes to be drilled is reduced as much as possible, resulting in efficient drilling work and improvement in yield, The present invention provides a glass plate having useful deformed holes, which can prevent the strength of a perforated glass plate from decreasing.

That is, the present invention provides a glass plate having a deformed hole, characterized in that at least one deformed hole having a polygonal shape, an elliptical shape or a deformed shape is perforated and arranged in the glass plate.

Further, the glass plate having the above-mentioned irregular holes, wherein the polygonal shape is a triangle. Moreover, the glass plate provided with the modified hole is characterized in that the glass plate provided with the modified hole is a window glass for a vehicle.

Further, the present invention provides glass plates each having a deformed hole, wherein the vehicle window glass is a front window glass, a rear window glass, or a lifting side window of an automobile window glass.

Here, as described above, the polygonal shape basically has corners, and is, for example, various triangles, squares or pentagons, and rhombus, and the elliptical shape is true. It's not a circle,
For example, it may be a substantially rectangular ellipse or the like, and the deformed shape may be various shapes such as a combination of elliptical shapes, and may be, for example, a shape in which the substantially rectangular ellipse is cross-shaped.

Regarding the perforation, as shown in FIG. 3 described in Japanese Patent Application No. 3-78511 filed by the applicant of the present invention, as shown in FIG. 3, a shank is formed on a plate-shaped cored bar 9 connected to a spindle shank 8. Parallel finishing blades fixed to the left and right side with 8 as the axis
10 , a pair of left and right cutting blades 12 provided with the finishing blades 10 extending inward and narrowing in a taper shape toward the tip to project from the tip of the cored bar 9, and the tip of the cored bar. The recessed notch 13 is formed, and the bottom of the notch 13 and the shank 8 are connected to each other.
The bottom surface of the tip of the core bar 9 forms a bottom slope 15 that is inclined upward toward the counter-rotational direction surface with the in-plane center line of the core metal 9 as a boundary, and is opened outward on the side surface of the hanging finishing blade portion 10. With a flat diamond seamer drill 7 which is provided with a U-shaped or V-shaped edging portion 16, that is, a seamer (also referred to as an egre portion), and which is capable of performing chamfering on both end edges of the hole in an inclined surface shape, FIG. The glass plate was fixed on the glass pedestal 3 shown in 1 above by vacuum adsorption. For example, the diamond grain size of the grinding portion is # 200, etc.
It goes without saying that the chamfering time and various conditions such as the number of revolutions and the cutting speed can be selected according to the situation.

Furthermore, the glass plate may be an inorganic transparent glass plate or an organic glass plate, and is not particularly limited to colorless or colored, and its type, color tone, shape, etc. As well as bent plate glass, various tempered glass and strength-up glass,
It goes without saying that it can be used as a flat plate or a single plate, and can also be used as a multilayer glass or a laminated glass.

[0015]

As described above, the glass plate provided with the modified holes of the present invention has the modified holes having a polygonal shape, an elliptical shape, or a deformed shape. It has an action force and can be fixed securely, and it can perform multiple functions by performing one or more functions with one deformed hole.It also has a unique flat diamond seamer drill, and uniquely drills. Since it is possible to improve the efficiency of drilling work and productivity, chamfering can be done at the same time and the finish is extremely beautiful, and it is possible to prevent the decrease in strength due to drilling, etc.
It is particularly useful as a door glass or window glass not only for construction but also for vehicles, especially for automobiles.

[0016]

EXAMPLES The present invention will be specifically described below with reference to examples. However, the present invention is not limited to the embodiment.

As shown in Example Figure 1, cut into a predetermined shape size about 1400Mmx800mm, polishing the flat, a clear float glass plate 19 having a thickness of about 3.5 mm, as shown in FIG. 2, Bakelite 4 and neoprene sponge 5, with a hole 6 that also serves as a hole for drilling, placed on a glass pedestal 3 adsorbed and fixed on a vacuum base, and a load of about 12 kg from above The glass plate 19 was set by pressing.

Then, as shown in FIGS. 3 and 4, about 8.
Using the 7φ flat diamond seamer drill 7 described above, first the drilling hole 17 is processed at a rotation speed of about 8,000 rpm and a cutting feed rate of about 150 mm / min. After drilling, the edging portion 16 of the drill is used. With a certain egre part, about 8,000 rpm, grinding, so as to draw a regular triangular locus by NC control.
Dish removal processing The cutting feed 18 was moved in the direction of the arrow at a cutting feed rate of about 20 mm / min to form a cutting portion 18, and a regular triangular shaped irregular hole 2 as shown in FIG. 1 was drilled.

The glass plate 1 provided with the irregularly shaped irregular holes thus obtained has a corner of R5 (about 5 mm at the position shown in FIG. 1).
The irregular hole 2 is a regular triangle with a radius of about 50 mm on each side, and it has a chamfered and beautiful finish, and it was possible to process efficiently without trouble. The minimum angle is R2
It is about 3 (about 2-3 mm radius).

Further, the glass plate provided with the obtained irregular-shaped holes
Regarding No. 1 , when bending strengthening was performed, a good product could be obtained without any problem. Further, the bending-strengthened glass plate having an equilateral triangular shaped irregular hole is used as a rear glass of a window glass for an automobile, and a set of wiper parts is attached to the equilateral triangular shaped irregular hole, and a washer pipe is also used at the same time. You can tie and tie together,
It can be said that the fixation is reliable, there is no problem in strength, and there is no occurrence of misalignment.

Further, also in the side glass (door glass) for raising and lowering the window glass for automobiles, various punching operations, changing the arrangement of irregular shaped holes, reducing the number of holes, etc. are carried out in the same manner as described above. Similar results were obtained.

[0022]

As described above, according to the present invention,
Since the glass plate has at least one hole with a unique flat diamond seamer drill that does not have a unique circular shape, it does not result in a markedly beautiful finish and does not cause a decrease in strength. Glass plate with useful deformed holes that can be used for various purposes in a variety of functions and can be securely fixed, and has a wide range of applications, such as window glass and door glass for buildings, vehicles, especially automobiles, etc. Is provided.

[Brief description of drawings]

FIG. 1 is a plan view showing a glass plate having a modified hole in which a predetermined glass plate is provided with modified triangular holes according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a glass pedestal on which a glass plate is placed when forming irregular-shaped holes in the glass plate shown in FIG.

FIG. 3 is a perspective view showing a flat diamond seamer drill used when boring the equilateral triangular irregular shape hole shown in FIG. 1;

4 is a perspective view showing a state from drilling to cutting / chamfering with the drill shown in FIG. 3 when forming the equilateral triangular deformed hole shown in FIG. 1. FIG.

[Explanation of reference numerals] 1 glass plate with irregularly shaped holes 2 equilateral triangular shaped irregularly shaped holes 3 glass pedestal 7 flat diamond seamer drill 16 edging 19 glass plate

Claims (4)

[Claims] 1. A glass plate having a deformed hole, characterized in that at least one deformed hole having a polygonal shape, an elliptical shape or a deformed shape is punched and arranged in a glass plate. 2. The glass plate with irregular shaped holes according to claim 1, wherein the polygonal shape is a triangle. 3. The glass plate having a modified hole according to claim 1, wherein the glass plate having the modified hole is a window glass for a vehicle. 4. The glass plate with a modified hole according to claim 3, wherein the vehicle window glass is a front window glass, a rear window glass, or a lifting side window glass of an automobile window glass.