US20040212244A1 - Chair via blow molding - Google Patents
Chair via blow molding Download PDFInfo
- Publication number
- US20040212244A1 US20040212244A1 US10/700,437 US70043703A US2004212244A1 US 20040212244 A1 US20040212244 A1 US 20040212244A1 US 70043703 A US70043703 A US 70043703A US 2004212244 A1 US2004212244 A1 US 2004212244A1
- Authority
- US
- United States
- Prior art keywords
- backrest
- chair according
- block
- chair
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/42—Support for the head or the back for the back of detachable or loose type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/12—Chairs of special materials of plastics, with or without reinforcement
Definitions
- the present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A chair includes a lower block and a hollow upper block installed on the lower block. The hollow upper block includes a seat, a backrest and two armrests formed together with one another. The hollow upper block is made of an adequate size so as to be strong in structure. The hollow upper block requires only a little material so as to be light in weight.
Description
- The present application is a continuation-in-part application of U.S. patent application Ser. No. 10/425372.
- The present invention relates to a chair made via injection molding and, more particularly, to a chair made via blow molding.
- A typical chair includes a lower block and an upper block installed on the lower block. The lower block includes a base for installment on the ground, a telescopic post installed on the base, a control device connected with the telescopic post for control over the extending and shrinking of the telescopic post. The upper block includes a seat installed on the control device, a backrest installed on the seat and two armrests installed on the seat. The seat, the backrest and the armrests are separately molded and then assembled. This practice however requires a lot of labor and time and therefore entails a high cost.
- U.S. patent application Ser. No. 10/425372 discloses a chair including a lower block and an upper block installed on the lower block. The upper block includes a seat, a backrest and two armrest formed together with one another via injection molding. The upper block is made of an adequate size so as to provide a sufficient strength. An adequate size requires however a lot of material that entails a high cost in fabrication. Moreover, a lot of material results in a big weight that entails a high cost in transportation.
- The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
- It is an objective of the present invention to provide a chair that can easily be manufactured.
- It is another objective of the present invention to provide a chair that can be manufactured at a low cost.
- It is another objective of the present invention to provide a chair that is strong in structure and light in weight.
- According to the present invention, a chair includes a lower block and a hollow upper block installed on the lower block. The hollow upper block includes a seat, a backrest and two armrests formed together with one another. The hollow upper block is made of an adequate size so as to be strong in structure. The hollow upper block requires only a little material so as to be light in weight.
- Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the attached drawings.
- The present invention will be described through detailed illustration of embodiments referring to the drawings.
- FIG. 1 is a perspective view of a chair according to a first embodiment the present invention.
- FIG. 2 is an exploded view of the chair of FIG. 1.
- FIG. 3 is a cut-away view of the chair of FIG. 1.
- FIG. 4 is a perspective view of a chair according to a second embodiment of the present invention.
- FIG. 5 is an exploded view of the chair of FIG. 4.
- FIG. 6 is a perspective view of a chair according to a third embodiment of the present invention.
- Referring to FIGS. 1 through 3, according to a first embodiment of the present invention, a
chair 10 includes a lower block and an upper block installed on the lower block. - The lower block is conventional and includes a
base 12 for installment on the ground, atelescopic post 14 installed on thebase 12, acontrol device 16 connected with the telescopic post for control over the extending and shrinking of thetelescopic post 14. - The upper block includes a
seat 18 installed on thecontrol device 16, abackrest 20 formed on theseat 18 and twoarmrests 22 integrated with both theseat 18 and thebackrest 20. Someenforcement ribs 40 are formed on both theseat 18 and thebackrest 20. - Referring to FIG. 3, the upper block is hollow. Thus, a little material is required to make the upper block of an adequate size. An adequate size provides a sufficient strength. A little material entails a low cost in fabrication. A little material results in a small weight that entails a low cost in transportation.
- To make the hollow upper block, injection molding is adopted, and blow molding is taken preferably. If a conventional process of injection molding is adopted, a mold and an insert are used. The mold and the insert are both made of at least one part. The insert is put in the mold. Molten plastic material is injected in a space defined via the mold and the insert. After being cured, the upper block is removed from the mold, and the insert is removed from the upper block. Some apertures are inevitably left in the upper block due to removal of the insert from the upper block. Therefore, blow molding is taken preferably. Via blow molding, only a mold is needed without need of using an insert in the mold. Blow molding has been taken to make things and will not be further described in detail for being conventional. However, blow molding has never been made to make a chair.
- FIGS. 4 and 5 show a chair according to a second embodiment of the present invention. The second embodiment is identical to the first embodiment except for including a
lower backrest 24 and anupper backrest 26 instead of thesingle backrest 20. Like thebackrest 20, thelower backrest 24 is formed on theseat 18. Thelower backrest 24 includes adovetail groove 28 defined in the top. Theupper backrest 26 includes adovetail 30 in the bottom. Thedovetail 30 can be inserted in thedovetail groove 28, thus connecting theupper backrest 26 with thelower backrest 24. Adhesive is provided between the bottom of theupper backrest 26 and the top of thelower backrest 24, thus securing theupper backrest 26 to thelower backrest 24. - FIG. 6 shows a chair according to a third embodiment of the present invention. The third embodiment is identical to the second first embodiment except for including an
upper backrest 32 instead of theupper backrest 26. Theupper backrest 32 is similar to theupper backrest 26 except for being taller. - The present invention has been described via detailed illustration of three embodiments. Those skilled in the art can derive variations from the embodiments without departing from the scope of the present invention. Therefore, the embodiments shall not limit the scope of the present invention defined in the claims.
Claims (11)
1. A chair comprising a lower block and a hollow upper block installed on the lower block, the hollow upper block including a seat, a backrest and two armrests formed together with one another.
2. The chair according to claim 1 wherein the hollow upper block is made via blow molding.
3. The chair according to claim 1 wherein the seat includes a plurality of enforcement ribs formed thereon.
4. The chair according to claim 1 wherein the backrest includes a plurality of enforcement ribs formed thereon.
5. The chair according to claim 1 wherein the backrest includes a lower member formed on the seat and an upper member installed on the lower member.
6. The chair according to claim 5 wherein one of the members of the backrest includes a dovetail groove, and the other of the members of the backrest includes a dovetail inserted in the dovetail groove, thus connecting the upper member of the backrest with the lower member of the backrest.
7. The chair according to claim 6 wherein the lower member of the backrest includes a dovetail groove, and the upper member of the backrest includes a dovetail inserted in the dovetail groove.
8. The chair according to claim 7 including adhesive provided between the upper member of the backrest and the lower member of the backrest, thus securing the upper member of the backrest to the lower member of the backrest.
9. The chair according to claim 1 wherein the lower block includes a base for installment on the ground and a post installed on the base.
10. The chair according to claim 9 wherein the post is telescopic.
11. The chair according to claim 10 wherein the lower block includes a control device connected with the telescopic post for control over the extending and shrinking of the telescopic post.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/700,437 US20040212244A1 (en) | 2003-04-28 | 2003-11-03 | Chair via blow molding |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42537203A | 2003-04-28 | 2003-04-28 | |
US10/700,437 US20040212244A1 (en) | 2003-04-28 | 2003-11-03 | Chair via blow molding |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US42537203A Continuation-In-Part | 2003-04-28 | 2003-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040212244A1 true US20040212244A1 (en) | 2004-10-28 |
Family
ID=33299495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/700,437 Abandoned US20040212244A1 (en) | 2003-04-28 | 2003-11-03 | Chair via blow molding |
Country Status (1)
Country | Link |
---|---|
US (1) | US20040212244A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090195047A1 (en) * | 2008-02-05 | 2009-08-06 | Bouche Timothy J | Chair shell with integral hollow contoured support |
US20090273126A1 (en) * | 2008-05-01 | 2009-11-05 | Krueger International, Inc. | Method and Apparatus of Gas-Assisted Injection Molding of Thick Parts |
USD910328S1 (en) * | 2019-11-02 | 2021-02-16 | 39F Usa Inc | Chair |
US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
USD919990S1 (en) * | 2019-12-05 | 2021-05-25 | 39F Usa Inc | Chair |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3410474A (en) * | 1967-05-10 | 1968-11-12 | Keil Brothers Inc | Protective corner pad for packing |
US3704912A (en) * | 1971-01-12 | 1972-12-05 | Richard S Bezark | Multi-component molded plastic chair |
US4522446A (en) * | 1982-03-15 | 1985-06-11 | Sebel Operations Pty. Ltd. | Article of furniture |
US5350218A (en) * | 1993-10-06 | 1994-09-27 | Perkins Julian B | Knockdown furniture structure |
US5496091A (en) * | 1994-03-14 | 1996-03-05 | Norix Group, Inc. | Chair and grouping thereof |
US5509720A (en) * | 1994-09-23 | 1996-04-23 | Croom; Dorothy J. | Alphabet block chair kit |
US5810438A (en) * | 1994-06-13 | 1998-09-22 | Herman Miller, Inc. | One piece molded seating structure |
US5988746A (en) * | 1997-01-03 | 1999-11-23 | Raferty Design, Inc. | Split back chair |
US6089669A (en) * | 1998-09-29 | 2000-07-18 | Attwood Corporation | Folding outdoor seat |
US20020011747A1 (en) * | 2000-07-10 | 2002-01-31 | Su-Jan Chen | Armrest with a push button for controlling level of a chair seat |
US6454358B1 (en) * | 2001-06-01 | 2002-09-24 | Michael Benincasa | Modular chair |
US6536844B2 (en) * | 1999-11-18 | 2003-03-25 | Moeller Marine Products | Blow-molded seat assembly and method of making same |
-
2003
- 2003-11-03 US US10/700,437 patent/US20040212244A1/en not_active Abandoned
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3410474A (en) * | 1967-05-10 | 1968-11-12 | Keil Brothers Inc | Protective corner pad for packing |
US3704912A (en) * | 1971-01-12 | 1972-12-05 | Richard S Bezark | Multi-component molded plastic chair |
US4522446A (en) * | 1982-03-15 | 1985-06-11 | Sebel Operations Pty. Ltd. | Article of furniture |
US5350218A (en) * | 1993-10-06 | 1994-09-27 | Perkins Julian B | Knockdown furniture structure |
US5496091A (en) * | 1994-03-14 | 1996-03-05 | Norix Group, Inc. | Chair and grouping thereof |
US5810438A (en) * | 1994-06-13 | 1998-09-22 | Herman Miller, Inc. | One piece molded seating structure |
US5509720A (en) * | 1994-09-23 | 1996-04-23 | Croom; Dorothy J. | Alphabet block chair kit |
US5988746A (en) * | 1997-01-03 | 1999-11-23 | Raferty Design, Inc. | Split back chair |
US6089669A (en) * | 1998-09-29 | 2000-07-18 | Attwood Corporation | Folding outdoor seat |
US6536844B2 (en) * | 1999-11-18 | 2003-03-25 | Moeller Marine Products | Blow-molded seat assembly and method of making same |
US20020011747A1 (en) * | 2000-07-10 | 2002-01-31 | Su-Jan Chen | Armrest with a push button for controlling level of a chair seat |
US6454358B1 (en) * | 2001-06-01 | 2002-09-24 | Michael Benincasa | Modular chair |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090195047A1 (en) * | 2008-02-05 | 2009-08-06 | Bouche Timothy J | Chair shell with integral hollow contoured support |
US7600820B2 (en) | 2008-02-05 | 2009-10-13 | Krueger International, Inc. | Chair shell with integral hollow contoured support |
US20090273126A1 (en) * | 2008-05-01 | 2009-11-05 | Krueger International, Inc. | Method and Apparatus of Gas-Assisted Injection Molding of Thick Parts |
US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
US11825955B2 (en) | 2017-06-09 | 2023-11-28 | Steelcase Inc. | Seating arrangement and method of construction |
USD910328S1 (en) * | 2019-11-02 | 2021-02-16 | 39F Usa Inc | Chair |
USD919990S1 (en) * | 2019-12-05 | 2021-05-25 | 39F Usa Inc | Chair |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5810438A (en) | One piece molded seating structure | |
US6962115B2 (en) | Blow molded pallet with pre-formed inserts | |
US6814235B2 (en) | Serving tray | |
US20020000545A1 (en) | Molded picket fence section | |
CA2710833A1 (en) | Plastic pallet | |
US20090223424A1 (en) | Table | |
US20030180192A1 (en) | Microtitation plate | |
US7182545B2 (en) | Structural element for a motor vehicle comprising two metal members and a reinforcing piece of plastics material which brings about the connection of the members, and a corresponding motor vehicle | |
JP7317951B2 (en) | Molds for support elements, such as saddles for vehicles, and support elements obtainable with such molds | |
US20010050361A1 (en) | Fence post finials | |
US20040212244A1 (en) | Chair via blow molding | |
US7090278B2 (en) | Grip handle at passenger seat in automobile | |
US20040212241A1 (en) | Chair assembled from blow-molded parts without tool | |
US6345556B1 (en) | Screwdriver handle structure having soft cushion | |
US5681078A (en) | Device having legs and a horizontal plate | |
US6523891B1 (en) | Multi-shell bicycle saddle | |
US6012787A (en) | Desk top with interfitted, molded, upper and lower components | |
US3586371A (en) | Seating arrangement | |
US20050258320A1 (en) | Decorative chair base assembly | |
US6089523A (en) | Integral mirror bracket using gas assist | |
EP0544718A1 (en) | Method for manufacturing a seat and seat manufactured according to the method. | |
KR200243690Y1 (en) | Inner structure of the board for a chair | |
USD498134S1 (en) | Rubber vibration insulator | |
ITVI980007A1 (en) | METHOD FOR THE CO-MOLDING OF PLASTIC MATERIALS PEMETHOD FOR THE CO-MOLDING OF PLASTIC MATERIALS FOR THE REALIZATION OF ELASTIC SUPPORTS INTEGRALIR THE REALIZATION OF INTEGRAL ELASTIC SUPPORTS, AS WELL AS SUPPORTS OBTAINED WITH SUCH ME, AS WELL AS OBTAINED FROM ME | |
KR200229584Y1 (en) | bench |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |