# US 10,766,160 B2 · Sheet for forming pillar for glass panel unit, pillar mounting device for manufacturing glass panel unit, glass panel unit manufacturing method, and glass window manufacturing method

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- Number: US 10,766,160 B2
- Document ID: US10766160B2
- Status: Granted
- Kind: B2
- Application number: 16/349,120
- Filed: 2017-11-10
- Published: 2019-09-05
- Granted: 2020-09-08
- Earliest claimed: 2016-11-11
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Intellectual Property Management Co., Ltd.
- Inventors: Takeshi Shimizu; Hiroyuki Abe; Masataka Nonaka; Kazuya Hasegawa; Eiichi Uriu; Haruhiko Ishikawa; Tasuku Ishibashi; Hiroshi Takahashi; Shinobu Watanabe
- Web page: https://patentgrep.com/patent/US10766160B2

## CPC

- B26F 1/14: Punching tools; Punching dies
- B26F 1/44: Cutters therefor; Dies therefor
- C03C 27/06: Joining glass to glass by processes other than fusing (fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66)
- E06B 3/66304: {Discrete spacing elements, e.g. for evacuated glazing units}
- E06B 3/66319: {of rubber, plastics or similar materials}
- E06B 3/66342: {characterised by their sealed connection to the panes}
- E06B 3/67304: {Preparing rigid spacer members before assembly}
- E06B 3/67326: {Assembling spacer elements with the panes}
- E06B 3/677: Evacuating or filling the gap between the panes {; Equilibration of inside and outside pressure}; Preventing condensation in the gap between the panes (by means of spacing elements E06B3/663); Cleaning the gap between the panes
- B26F 2210/02: of stacked sheets
- E06B 3/6775: {Evacuating or filling the gap during assembly}
- B26F: PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING (marking-out, perforating or making buttonholes A41H25/00; shoemaking A43D; surgery A61B; punching metal B21D; drilling metal B23B; cutting of metal by applying heat locally, e.g. flame cutting, B23K; cutting by abrasive fluid jets B24C5/02; details common to machines for severing B26D; drilling wood B27C; drilling stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; of glass C03B; of leather C14B; of textile materials D06H; for light guides G02B6/25; of tickets G07B)
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00)

## Abstract

A glass panel unit manufacturing method includes a punching step and a pillar mounting step. In the punching step, a punch punches at least one of a plurality of portions from a base material of a sheet to form at least one pillar. Each of the plurality of portions is surrounded by a corresponding one of a plurality of loop-shaped grooves in the base material. In the pillar mounting step, the at least one pillar is mounted on a surface of a first substrate including a glass pane.

## Claims

### Claim 1

A sheet comprising a base material having a sheet-like shape,
the base material having a plurality of loop-shaped grooves,
the base material having a plurality of portions serving as pillars for a glass panel unit having a pair of substrates and an inside space between the pair of substrates, each of the plurality of portions being surrounded by a corresponding one of the plurality of loop-shaped grooves.

### Claim 2 (depends on 1)

The sheet of claim 1, wherein the base material is made of a resin.

### Claim 3 (depends on 1)

The sheet of claim 1, wherein the base material includes a plurality of resin layers.

### Claim 4 (depends on 1)

The sheet of claim 1, wherein at least one of the plurality of loop-shaped grooves has a discontinuous loop shape.

### Claim 5 (depends on 1)

The sheet of claim 1, wherein the at least one of the plurality of loop-shaped grooves has a discontinuous loop shape and penetrates through the base material.

### Claim 6 (depends on 1)

The sheet of claim 1, wherein:
at least one of the plurality of loop-shaped grooves has a continuous loop shape, and
at least a part of the continuous loop shape does not penetrate through the base material.

### Claim 7 (depends on 1)

The sheet of claim 1, wherein each of the plurality of loop-shaped grooves is a laser-processed loop-shaped groove.