JPS5946902B2 - How to form edges of lead etc. on glass pieces for stained glass composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming lead edges on pieces of glass for stained glass construction.

Stained glass is a design created by combining pieces of colored glass, and has been used in architectural windows since ancient times.
In addition, recently, shades of lighting equipment have been made of stained glass, which has an excellent decorative effect.

Traditionally, to make stained glass, you first cut the glass according to the design, then stained the glass piece, and then inserted the edge of the glass piece into the fitting recess on one side of the ■-shaped lead wire. Attach a ■-shaped lead wire to the edge of this glass piece, fit the edge of another glass piece into the fitting recess on the other side of this single-character lead wire, and use the ■-shaped lead wire to connect the glass piece. are assembled by connecting them in sequence.

In this case, if the glass is not cut accurately according to the design, or if the lead wires are not aligned accurately with the edges of the glass pieces during assembly, there will be dimensional errors in the finished stained glass. Because of this, beautiful stained glass cannot be obtained.

Therefore, in the production of stained glass, cutting the glass accurately and assembling the glass pieces using single-shaped lead wire were the most important tasks, and required a lot of skill.

In addition to the above method for assembling glass pieces, there is also a method of attaching copper tape to the edge of each glass piece in advance, butting the glass pieces together and applying solder to both tape parts to join them. ■Although it has the advantage of making stained glass relatively easily compared to using lead wire, it lacks a sense of solidity, so its commercial value as stained glass is low.

This invention eliminates any hindrance to the production of stained glass even if some dimensional errors occur when cutting the glass, and allows the same result as using single-shaped lead wire when assembling glass pieces without using it. This allows effective stained glass to be obtained.A glass piece is housed in a hollow part formed by joining two templates, and the gap between the edge of the glass piece and the inner periphery of the hollow part is The glass piece is injected with molten lead or synthetic resin to form a lead or synthetic resin edge on the glass piece.

Embodiments of the present invention will be described below with reference to the drawings.

1 is the machine base of the device used to carry out this invention, 2 is the plate support located on the top surface of the machine base 1, 3 is the axis of the plate 2, and this shaft 3 is attached to the machine base 1. It is supported so as to be rotatable and movable up and down, and is rotated and moved up and down by the operation of a rotating device and a vertical moving device (none of which are shown) located below the machine base 1.

4 is the lower template placed on the board 2, and 5 is this lower template 4.
The upper mold plate is superimposed on the upper mold plate, and the joint surfaces of these two mold plates 4 and 5 are made of a heat-resistant elastic material such as heat-resistant rubber.

Grooves 4b and 5b, which are slightly larger than the planar shape of the glass piece 30, are provided on the inner edges of the joining surfaces of both mold plates 4 and 5, the upper surface of the lower mold plate 4 and the lower surface of the upper mold plate 5. A required number of concave portions 4a and 5a are formed radially, and both mold plates 4
The glass piece 30 is housed in a hollow part 21 formed by combining the four parts 4a and 5a of each of the glass parts 4a and 5a with a gap 22 of a constant width therebetween.

Here, in forming the recesses 4a and 5a on the joining surfaces of both templates 4 and 5, in this invention, a wire is wound around the edge of the glass piece 30, and a bulging edge is formed on the edge of the glass piece 30. A piece of glass made slightly larger than the glass piece 30 is used as a mold material, and this mold material is inserted between the joint surfaces of both mold plates 3 and 4,
In this state, heat and pressure are applied to thermally deform the joining surfaces of both mold plates 3 and 4, and a shape is formed on each joining surface, which is slightly larger than the planar shape of the glass piece 30 and whose depth is equal to the thickness of the glass piece 30. At the same time as forming approximately half of the recesses 4a, 5a, these recesses 4a, 5a are formed.
Grooves 4b and 5b, which are slightly wider than the gap 22 between the hollow portion 21 and the glass piece 30, are formed at the inner edge of the glass piece 30.

Numerals 4c and 5c are runners, which are provided radially from the center of the templates 4 and 5, and their tips communicate with the recesses 4a and 5a.

6 is a sprue formed in the upper mold plate 5.

Reference numeral 7 denotes a holding plate holding column erected on the machine base 1, and the template supports are arranged close to the outer periphery of the board 2 at equal intervals.

Reference numeral 8 denotes an engagement recess formed on the inner surface of the presser plate holding column 7.

Reference numeral 9 designates a template holding plate, on its outer periphery there are provided a number of locking protrusions 10 corresponding to the number of holding columns 7;
0 into the recess 8 of the holding post 7, the holding plate 9 is held by the holding post 7.

11 is a through hole formed in the center of the holding plate 9.

Next, a method of forming the edge 31 of lead or the like on the glass piece 30 using the above-mentioned apparatus will be explained.

A cut glass piece 30 is housed in each of the four parts 4a of the lower mold plate 4 with a gap 22 between the four parts 4a (FIG. 6).

In this case, the glass piece 30 only needs to be cut to a size that can be accommodated in the recess 4a, and there may be some dimensional error in the cut (see the two-dot chain line in FIG. 4).

Next, the upper mold plate 5 is inserted so that each recess 5a is connected to the recess 4a of the lower mold plate 4.
Lay it on the lower template 4 so that it matches (Fig. 7).

After that, the receiver raises the board 2 and presses the top surface of the upper mold board 5 with the plate 9.
In this state, the receiver rotates the board 2 (
As a result, the lower mold plate 4 and the upper mold plate 5 rotate in a joined state, and the glass piece 30 in the hollow part 21 has its upper and lower surfaces aligned with the bottom surface of the recess 4a of the lower mold plate 4 and the upper mold plate. Since the glass piece 30 is pressed against the bottom surface of the recess 5a of the plate 5, the glass piece 30 does not move within the hollow portion 21 during rotation.

While rotating the upper and lower templates 4 and 5 as described above,
Molten lead (or lead alloy) or molten synthetic resin (sometimes metal powder such as lead may be mixed in) is poured into the sprue 6 in the upper mold plate 5 through the through hole 11 of the holding plate 9, and the runner 4c
, 5c to fill the gap 22 in the hollow portion 21 (FIG. 8).

After the filled lead or synthetic resin solidifies, the receiver stops the rotation of the board 2 and lowers the board 2. After that, the upper mold plate 5 is removed from the lower mold plate 4, and then the lower mold plate 4 is removed. Take out the glass piece 30.

As a result, a lead or synthetic resin edge 31 corresponding to the shape of the gap 22 is formed at the edge of the glass piece 30 (FIG. 9).
.

Note that the recesses 4a and 5a of the lower mold plate 4 and the upper mold plate 5 are
In addition to forming all of them into the same shape as shown in the figure, some of them may be formed into different shapes. When performing this process, it is possible to simultaneously form glass pieces of different shapes with an edge 3 on the outer periphery.
1 can be formed.

Further, in the above method, without rotating the templates 4 and 5, molten lead or the like is injected and filled into the gap 22, and the edge 3 of the glass piece 30 is filled.
1, but the present invention is not limited to this. The mold plates 4 and 5 are left in place without being rotated, and molten lead or the like is pressed into the gap.

You may fill it up.

This invention consists of the above-mentioned method, and in order to produce stained glass by combining the above-mentioned glass pieces, the edges 31, 31 of the glass pieces 30, 30 are butted against each other and joined. In the case of wires, they are joined by soldering, and in the case of synthetic resin edges, they are joined with adhesive.

By the way, in the case of lead wires, it is better to plate (copper plating) the surface of the lead wire 31 using a separate device in advance. By doing this, a film is formed on the surface of the lead wire 31, so that it is difficult to solder. Since the lead wires 31 and 31 are not distorted, the joint can be beautifully finished.

The stained glass produced as described above is then
The edge 31 is subjected to various metal surface treatments (for example, in the case of lead wire, it is subjected to a temporization with copper sulfate, silver plating, or alloy plating of tin and nickel) and polished.

By doing this, the edge 31 becomes glossy, so
The appearance becomes more beautiful and the product value can be increased.

When assembling using conventional ■-shaped lead wires, it may be difficult to plate the lead wires depending on the material because the putty is packed between the lead wires and the glass pieces. This is not the case with the edge 31 formed by this method.

FIG. 10 shows an example of an apparatus that accommodates a plurality of glass pieces 30 in a hollow portion 21 and forms edges 31 on each glass piece 30 at once.

In this case, when the hollow part 21 accommodates a plurality of glass pieces 30, the space between the adjacent glass pieces 30 and 30 and the glass pieces 3
The recess 4a of the lower mold plate 4 and the recess 5a of the upper mold plate 5 are formed so that a certain gap 22 exists between the edge of the inner circumference of the hollow part 21 and the inner circumference of the hollow part 21. Form.

4' and 5' are heat-resistant rubber parts of the lower mold plate 4 and the upper mold plate 5.

Next, a method of forming edges using the above device will be explained.

Each glass piece 30 is accommodated in the recess 4a of the lower mold plate 4.

In this case, since the bottom surface of the recess 4a is curved, the glass piece 3
In order to prevent 0 from shifting, a pin (not shown) is inserted into the bottom surface of the recess 4a and temporarily fixed (this pin is cast as is without being removed).

After covering the upper mold plate 5 with the lower mold plate 4, pouring the metal as described above, the gap 22 between the adjacent glass pieces 30, 30 and the inner peripheral side of the hollow part 21 of the glass piece 30 are Molten lead or synthetic resin is injected and filled into the gap 22 between the edge of the hollow part 21 and the inner periphery of the hollow part 21, respectively.

By doing so, edges 31 can be formed on each glass piece 30 as shown in FIG. 11.

When forming the edges as described above, you can connect the glass pieces in a semicircular shape, so it is useful for making shades for lighting equipment.

As explained above, according to the present invention, two templates 4,
5 are joined together, and recesses 4a and 5 are formed on the respective joint surfaces.
A glass piece 30 is accommodated in the hollow part 21 formed by combining the four parts 4a.

Since molten lead or synthetic resin is injected between the grooves 4b and 5b formed on the inner edge of the glass piece 30 to form a lead edge on the glass piece 30, there may be some dimensional error in the tightness of the glass piece itself. However, it is possible to form an edge with a constant outer circumference.

Therefore, according to this invention, even if some dimensional errors occur when cutting the glass according to the design, the outer periphery of the edge can be formed to accurate dimensions, so the glass pieces can be assembled accurately, and the stained glass can be manufactured. Not only does this not cause any trouble at all, but since the glass pieces have edges made of lead or the like, there is no need to assemble the glass pieces using single-shaped lead wires.

Further, in this invention, the joint surfaces of the lower mold plate 4 and the upper mold plate 5 are formed of a heat-resistant elastic material, and the glass piece has substantially the same shape as the glass piece 30 and has a bulging edge at the edge. A shaped material slightly larger than 30 is inserted between these joint surfaces, and in this state heat and pressure is applied to thermally deform the joint surfaces of the husband and husband, thereby forming a glass piece 30 on each joint surface. Since the recesses 4a and 5a are formed to be slightly larger than the planar shape and have grooves 4b and 5b on the inner edges corresponding to the edges of the mold material, even when the shape of the glass piece 30 is complicated, A piece of glass 30 is housed in the hollow part 21 formed by the concave parts 4a and 5a, and the edge 31 of the lead etc. is kept in a constant state by simply injecting molten lead or the like between the grooves 4b and 5b and solidifying it. It can be easily formed on the glass piece 30.

In addition, since the joining surfaces of the two mold members 4 and 5 that sandwich the glass piece 30 have elasticity, the glass piece 30 will not be damaged even if the glass piece 30 is slightly curved.

Therefore, when a rim of lead or the like is formed on a piece of glass by the method of the present invention, it is possible to produce beautiful stained glass without requiring any skill.

[Brief explanation of the drawing]

Fig. 1 is a partially cut-away front view showing an example of the apparatus used to carry out the method of the present invention, and Fig. 2 is a partially cut-away front view showing the template support in Fig. 1 with the board raised. , Fig. 3 is a plan view of Fig. 1 with the template holding plate and upper template removed, Fig. 4 is a partially enlarged plan view of Fig. 3, and Fig. 5 is a plan view of Fig. 4.
6 to 8 are cross-sectional views taken along the line A-A, and FIG.
9 is a perspective view of a piece of glass with edges formed by the method of the present invention; FIG. 10 is a sectional view of another embodiment of the present invention in which edges are formed; FIG. 11 10 is a perspective view of a piece of glass having edges formed by the method of FIG. 10; FIG. 4...lower template, 4a...recess, 4b.
...Groove, 5...Upper template, 5a...
- Recessed portion, 5b...Groove, 21...Hollow portion, 30...Glass piece, 31...Edge of lead, etc.

Claims (1)

[Claims] 1 A glass piece with a bulge-like edge approximately the same shape as the glass piece 30 is provided between the joint surfaces of the lower mold plate 4 and the upper mold plate 5 formed of a heat-resistant elastic material. A mold material slightly larger than 30 is inserted, and heated and pressed in this state to deform the joint surfaces of the lower mold plate 4 and upper mold plate 5, so that the planar shape of the glass piece 30 is formed on each joint surface. Four parts 4a and 5a are slightly larger and have grooves 4b and 5b on their inner edges corresponding to the edges of the shape material.
After forming the glass piece 30 in the hollow part 21 formed by combining these recesses 4a and 5a, molten lead or synthetic resin is injected and filled between the grooves 4b and 5b, and this is allowed to solidify. A method for forming an edge made of lead or the like on a glass piece for forming a stained glass, characterized in that a protruding edge 31 made of lead or synthetic resin is formed on the edge of the glass piece 30.