JP3152692B2 - Metal plate counter and method of forming flange of metal plate end - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal plate counter such as a stainless steel sink, and a method of forming the same.

[0002]

2. Description of the Related Art FIG. 7 is a plan view of an L-shaped sink.
An example in which an L-shaped sink 100 is arranged at a corner (corner) of a room R is shown.

FIG. 8 is a perspective view of an L-shaped sink, and an L-shaped sink 100 is a combination of a sink 103 including a faucet 101 and a sink 102 and a cooking unit 105 including a gas range 104. The sink unit 103 covers the upper surface of the sink unit cabinet 106 with a stainless steel sink-side counter 107 having a thickness of 0.6 mm to 1.2 mm.
5 is 0.6 mm from the upper surface of the cooking unit cabinet 108.
1.2 mm thick stainless steel cooking side counter 109
Covered with.

Since the L-shaped sink 100 is generally large, the bent portion in a plan view is cut into a lotus (oblique), the sink 103 and the cooking unit 105 are separately loaded, and the lottery shown in FIG. The unit 110 is united.

FIG. 9 is a joining surface view of a lotus cut portion of a conventional counter of an L-shaped sink.
12 is formed by bending.

After the flange 112 of another counter is fitted to the flange 112 and firmly tightened with four bolts, the silicone rubber 114 is joined to the silicone rubber tube 113 as shown in FIG. The surface 111 is filled and so-called joint filling is performed. The silicone rubber 114 has good water resistance and is hardly deteriorated, so that water is prevented from entering the bonding surface 111.

[0007]

FIG. 11 is a diagram showing the state of application of a conventional silicone rubber. In the figure, portions indicated by A and B have a thickness of only 0.6 mm to 1.2 mm. The bonding width of the silicon rubber 114 is very small.

Since the counters 107 and 109 (FIG. 7) are apt to be covered with water and dirt, it is necessary to frequently wipe them with a rag or the like.
This rag may hang on the slightly expanded silicone rubber 114. Since the adhesive strength of the silicone rubber 114 is very small at the locations A and B, there is a disadvantage that the silicone rubber 114 is peeled off by the rag and the water leaks therefrom.

Therefore, an object of the present invention is to provide a silicone rubber 11
4 is to increase the adhesive strength.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for fixing a large flange for bolting, a small flange parallel to the large flange, and a large flange on a joining surface of metal plate counters. A small flange oriented at right angles is formed.

[0011]

The punch parallel to the die and the flange perpendicular to the die are formed in one stroke by lowering the punch obliquely to the die on which the metal plate is placed.

The silicone rubber filling the joint surface adheres to the large flange and the small flange, so that the adhesive force is large and there is no fear of peeling of the silicone rubber.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals.

FIG. 1 is a perspective view of a metal plate counter according to the present invention.
, A large flange 4, small flanges 5, 6 oriented parallel to the large flange 4, and the large flange 4
It is characterized in that the small flanges 7, 8 oriented at right angles are formed by right angle bending.

The metal plate refers to a thin plate made of stainless steel, tinplate, aluminum, titanium or the like, and the counter refers to a base including a flat portion suitable for placing an object. A method for forming a metal plate counter having the above-described shape will be described below.

FIG. 2 is a plan view of a metal plate counter according to the present invention, in which a flat stainless steel plate 10 having a thickness of 0.6 mm to 1.2 mm is cut as shown in FIG. Drill bolt holes 3 in the large flange 4.

Next, for example, in FIG.
By folding the mountain in the order of → and valley folding,
Intermediate product 1 as shown in (Semi-finished product drawing of metal plate counter)
Get 1. In the figure, the symbol corresponds to the symbol in FIG.

In FIG. 3, the large flange 4 and the small flanges 5, 6, 7, 8 relating to the joint surface 2 have not yet been bent.

FIGS. 4 (a) and 4 (b) are diagrams showing the principle of the flange forming method according to the present invention. The intermediate product 11 is die-formed with large and small flanges 4, 5, 6, 7, 8 protruding. 12
And strongly pressed by pads 14 with springs 13 (FIG. 4A).

The large and small flanges 4 are
The punches 5, 6, 7, and 8 are bent at a right angle (FIG. 4B). At this time, the punch 15 is obliquely lowered at an angle θ with respect to the vertical line by the guidance of the slope 16a of the punch guide 16. Thereby, the large flange 4 and the small flanges 5 and 6 parallel to the large flange 4 are formed.
In addition, the small flanges 7, 8 which are perpendicular to the large flange 4 are bent at right angles.

It has been confirmed by various experiments that the above θ can be formed well if the angle is 20 ° or more.

FIG. 5 is a sectional view of the joining surface of the metal plate counter of the present invention. The silicone rubber 17 is satisfactorily held between the small flanges 5 and 5 and the contact area thereof is sufficiently large. It withstands enough and there is no fear of peeling.

FIG. 6 is a view showing another embodiment of the metal plate counter of the present invention, in which recesses 18... Are formed in small flanges 5 and 5 by embossing. That is, the small flanges 5, 6, 7, and 8 may be embossed at the time of or after the plate removal shown in FIG. The large flange 4 may be embossed.

According to FIG. 6, since the bonding strength of the silicone rubber 17 at the small flanges 5 to 8 is greatly increased, it is possible to reduce the width L of the small flanges 5, 6, 7, and 8.

As the width L of the small flange 5 becomes smaller, FIG.
The press working shown in (a) and (b) becomes easy.

The metal plate of the present invention is suitable for a sink in a so-called system kitchen, a range counter, and an upper counter of a cooking table, but may be widely used for a flat plate with a similar metal plate.

Further, the small flanges 7 and 8 of the metal plate counter 1 of the present invention may be bent in a separate step. In short, the flange arrangement shown in FIG.

[0028]

As described above, according to the present invention, a large number of large flanges and a small number of small flanges for bolting are formed on the joining surface of the metal plate counter, so that the metal plate counters are bolted together. When the bonding surface is filled with silicone rubber, this silicone rubber adheres to the large and small flanges of a wide area, so that the silicone rubber does not peel or fall off,
The life as a counter is extended.

According to the method of the present invention, a large flange and a small flange perpendicular thereto can be bent at a right angle in one stroke.
The processing time and the processing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a metal plate counter according to the present invention.

FIG. 2 is a plan view of a metal plate counter according to the present invention.

FIG. 3 is a diagram of a semi-finished product of the metal plate counter according to the present invention.

FIG. 4 is a principle diagram of a flange forming method according to the present invention.

FIG. 5 is a sectional view of a joint surface of the metal plate counter of the present invention.

FIG. 6 is a view showing another embodiment of the metal plate counter of the present invention.

FIG. 7 is a plan view of an L-shaped sink.

FIG. 8 is a perspective view of an L-shaped sink.

FIG. 9 is a joint view of a lotus cut portion of a conventional L-shaped sink counter.

FIG. 10 is a diagram showing the construction of a medical seal.

FIG. 11 is a view showing a state of application of a conventional silicone rubber.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Metal plate counter, 2 ... Joint surface, 3 ... Bolt hole, 4 ...
Large flange, 5, 6, 7, 8 ... small flange, 12 ... die, 15 ... punch, 110 ... lotus cut part.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) A47B 77/00-77/18 A47B 96/18 B21D 19/12

Claims (2)

(57) [Claims] 1. A metal plate counter for an L-shaped or substantially L-shaped counter in plan view constituted by contacting with a lotus cut portion, and a large surface for bolting to a joint surface of the metal plate counter. A metal plate counter comprising: a flange; a small flange parallel to the large flange; and a small flange perpendicular to the large flange. 2. A die having a metal plate mounted thereon, wherein a flat metal plate is formed into a counter shape by mountain bending and valley folding by a bender, and a joining flange is formed at an end of the bent metal plate by right angle bending. Forming a flange parallel to the die and a flange perpendicular to the die in one stroke by lowering the punch obliquely to the end of the metal plate. Method.