US20020153754A1 - Assembled and multi-functional chair - Google Patents
Assembled and multi-functional chair Download PDFInfo
- Publication number
- US20020153754A1 US20020153754A1 US09/837,277 US83727701A US2002153754A1 US 20020153754 A1 US20020153754 A1 US 20020153754A1 US 83727701 A US83727701 A US 83727701A US 2002153754 A1 US2002153754 A1 US 2002153754A1
- Authority
- US
- United States
- Prior art keywords
- chair
- legs
- ladder
- chairs
- present
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C12/00—Step-stools
- A47C12/02—Step-stools requiring conversion between the step and seat functions
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C13/00—Convertible chairs, stools or benches
- A47C13/005—Modular seating
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/04—Stackable chairs; Nesting chairs
Definitions
- the present invention relates to a ladder shape stackable chair, and especially to a chair structure, which may be longitudinally stacked or/and connected to one another transversally so as to be formed as a ladder or displaying frame.
- a chair In general, a chair has four legs with an identical length. As they are not used, the chairs are stacked to one another for storage and saving space. As the chair is stacked, the bottom of the chair is flatly adhered to the top of another chair. Other than being storage conveniently, no any function is provided.
- the primary object of the present invention is to provide a chair capable of stacking like a ladder which may be longitudinally stacked or/and connected to one another transversally so as to be formed as a ladder.
- Another object of the present invention is to provide a chair capable of stacking like a ladder, in that a chair is multi-functional.
- the chairs can be assembled as ladders or display frames so that the cost is saved.
- Further object of the present invention is to provide a chair capable of stacking like a ladder, wherein one chair may stack upon another chair by the supporting portions.
- Buckling devices are used to transversally connect chairs so as to be formed with a ladder shape chair frame. The space is saved and the height of the ladder is controllable.
- a still further object of the present invention is to provide a chair capable of stacking like a ladder, which can be assembled easily and conveniently and used safely.
- the present invention provides a chair capable of stacking like a ladder.
- the inner lateral sides of the chair have supporting portions which are arranged alternatively so that one chair may stack upon another chair by the supporting portions.
- At least a lower portion of two legs is arranged with buckling devices.
- Buckling devices are used to transversally connect the lower portion of each two chairs so as to be formed with a ladder shape chair frame. Therefore, ladders, displaying frame or displaying frames with level differences are formed, which are steadily.
- the chairs can be rotated through one angle so that they can be overlapped longitudinally.
- FIG. 1 is a perspective view of a preferred embodiment of the present invention
- FIG. 2 is a schematic view showing a ladder being formed by stacking the chairs according to the present invention
- FIG. 3 is a top view of FIG. 1;
- FIG. 4 is an elevation view showing that the chairs are stacked one another
- FIG. 5 is a cross sectional view along line 5 - 5 of FIG. 1;
- FIG. 6 is a schematic view showing that the legs are buckled as it is used as a ladder
- FIG. 7 is a partial enlarged view showing the buckling of the legs of the FIG. 6;
- FIG. 8 is a schematic view showing that the present invention is used a displaying frame of the present invention.
- FIG. 9 is a perspective view of another preferred embodiment of the present invention.
- the chair of the present invention includes a chair surface 11 , a plurality of legs 12 and longitudinal supporting protrusions 13 at the inner lateral side of the legs 12 , which is alternatively spaced arrangement.
- the bottoms of at least two legs 12 are further installed with buckling devices 120 which are arranged in parallel spaced teeth (or nose portions, or blocks).
- the teeth of two adjacent buckling devices 120 are arranged alternatively, as shown in FIG. 7.
- Each protrusion 13 has a hollow portion at the upper portion for being formed with a leg structure.
- the periphery of the chair surface 11 is installed with a plurality of concave portions 110 at a position with respect to each protrusion 13 so that the protrusion 13 may pass through the corresponding concave portion 110 to be engaged therein.
- the chair of the present invention has many various shapes.
- the chairs are overlapped for storage (referring to FIG. 4).
- the legs of the protrusion 13 of the first chair 10 are aligned to the concave portion 110 A of the chair surface 11 A of the second chair surface 11 A so that the first chair covers the second chair surface 11 A.
- the bottom of the first chair surface 11 is almost adhered to the top of the second chair surface 11 A, and the bottom of the second chair surface 11 A is almost adhered to the top of the third chair surface 11 B, etc. Therefore, a plurality of chairs are overlapped for storage.
- the legs 12 of the first chair 10 is interleaved with the concave portion 110 A of the second chair surface 11 A.
- the first chair 10 is placed upon the second chair 10 A.
- the protrusion 13 of the first chair resists against the chair surface 11 A of the second chair 10 A so that two chair surfaces are spaced with a distance (i.e., the length of the protrusion 13 ) so as to be a long assembly having a larger gap.
- a distance i.e., the length of the protrusion 13
- FIG. 2 by a plurality of chairs A, B and C to connect transversally so as to be formed as a ladder with an equal spacing between different lattices, and thus a ladder or a display frame is assembled.
- the assembly structure is firmly and steady.
- the chairs of the present invention For assembling the chairs of the present invention to be formed as a ladder, or a display frame.
- the way is that the buckle devices 120 of the outer sides of the bottoms of the legs 12 are connected to each other so that teeth of the buckling device 120 of the legs 12 of the first chair is engaged downwards to the buckled device 120 A of the legs 12 A of the second chair.
- the assembly work without transversal force is formed.
- a (or a series of) chair is moved upwards. Therefore, in the present invention, as ladder is assembled for using, the top of the chair does not worry about the displacement of the gravitation force so that the ladder is separated or collapsed.
- the ladder assembled by the present invention has a larger bottom area and the height can be formed according to a practical requirement.
- the application is convenient. While as the present invention is used as a receiving frame or a display frame.
- the chair surface of each chair may be used to place objects, especially used as a flower frame.
- Each chair surface is placed with a pot of flowers for as to be formed as a three dimensional ladder shape flower wall (referring to FIG. 8). It is very beautiful.
- a chair 100 includes a chair surface 11 , a plurality of legs 12 , longitudinal supporting protrusions 13 at the inner lateral side of the legs 12 , which is alternatively spaced arrangement, buckling devices 120 installed at the bottoms of at least two legs 12 and a reinforced ring 121 added between each two legs in connection with each two legs 12 at the portion as near as the bottom of the protrusion 13 , as shown in FIG. 9.
- This provision will prevent the leg 12 from being collapsed when a large number of chairs are required to be longitudinally stacked.
- the chair of the present invention has improved the conventional chair having a unique application. Furthermore, it may develop with various applications such as a ladder, a object receiving frame and a display frame.
Landscapes
- Ladders (AREA)
Abstract
A chair capable of stacking like a ladder is disclosed. The legs of the chair are alternatively arranged. The inner lateral sides of the chair have longitudinal supporting protrusion so that one chair may stack upon another chair by the supporting protrusion. Buckling devices are used to transversally connect chairs so as to be formed with a ladder shape chair frame.
Description
- 1. Field of the Invention
- The present invention relates to a ladder shape stackable chair, and especially to a chair structure, which may be longitudinally stacked or/and connected to one another transversally so as to be formed as a ladder or displaying frame.
- 2. Description of Related Art
- In general, a chair has four legs with an identical length. As they are not used, the chairs are stacked to one another for storage and saving space. As the chair is stacked, the bottom of the chair is flatly adhered to the top of another chair. Other than being storage conveniently, no any function is provided.
- In general, many houses make cabinets which are extended from the ceiling with a certain length and for receiving books, disks or others. However, the height of the cabinet is too high to be reached by people. Therefore, ladders are prepared for reaching the cabinet, while as the ladder is not used, it will be stored but still occupies a small space so as to be formed as a waste in economics and space.
- Furthermore, many display frames for locating books or other commodities are expanded like ladders which are different in height so as to present a beautiful feeling to the viewer. Moreover, such a design is beneficial for expanding the exhibiting area.
- Therefore, from above description, it is appreciated that small type ladders have many applications in daily life. However, in many conditions, these ladders occupies a larger space as they are not used. While in general, chairs are necessary devices. Therefore, if there are chairs which can changed into ladders or displaying frame as desired, then above defects may be improved, while the advantages of chairs and ladders are retained.
- Accordingly, the primary object of the present invention is to provide a chair capable of stacking like a ladder which may be longitudinally stacked or/and connected to one another transversally so as to be formed as a ladder.
- Another object of the present invention is to provide a chair capable of stacking like a ladder, in that a chair is multi-functional. The chairs can be assembled as ladders or display frames so that the cost is saved.
- Further object of the present invention is to provide a chair capable of stacking like a ladder, wherein one chair may stack upon another chair by the supporting portions. Buckling devices are used to transversally connect chairs so as to be formed with a ladder shape chair frame. The space is saved and the height of the ladder is controllable.
- A still further object of the present invention is to provide a chair capable of stacking like a ladder, which can be assembled easily and conveniently and used safely.
- To achieve above objects, the present invention provides a chair capable of stacking like a ladder. The inner lateral sides of the chair have supporting portions which are arranged alternatively so that one chair may stack upon another chair by the supporting portions. At least a lower portion of two legs is arranged with buckling devices. Buckling devices are used to transversally connect the lower portion of each two chairs so as to be formed with a ladder shape chair frame. Therefore, ladders, displaying frame or displaying frames with level differences are formed, which are steadily. After the chairs are used, the chairs can be rotated through one angle so that they can be overlapped longitudinally.
- The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
- FIG. 1 is a perspective view of a preferred embodiment of the present invention;
- FIG. 2 is a schematic view showing a ladder being formed by stacking the chairs according to the present invention;
- FIG. 3 is a top view of FIG. 1;
- FIG. 4 is an elevation view showing that the chairs are stacked one another;
- FIG. 5 is a cross sectional view along line5-5 of FIG. 1;
- FIG. 6 is a schematic view showing that the legs are buckled as it is used as a ladder;
- FIG. 7 is a partial enlarged view showing the buckling of the legs of the FIG. 6;
- FIG. 8 is a schematic view showing that the present invention is used a displaying frame of the present invention; and
- FIG. 9 is a perspective view of another preferred embodiment of the present invention.
- In order that those skilled in the art can further understand the present invention, a description will be described in the following in details. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims.
- Referring to FIG. 1, the chair of the present invention includes a
chair surface 11, a plurality oflegs 12 and longitudinal supportingprotrusions 13 at the inner lateral side of thelegs 12, which is alternatively spaced arrangement. The bottoms of at least twolegs 12 are further installed withbuckling devices 120 which are arranged in parallel spaced teeth (or nose portions, or blocks). The teeth of twoadjacent buckling devices 120 are arranged alternatively, as shown in FIG. 7. Eachprotrusion 13 has a hollow portion at the upper portion for being formed with a leg structure. The periphery of thechair surface 11 is installed with a plurality ofconcave portions 110 at a position with respect to eachprotrusion 13 so that theprotrusion 13 may pass through the correspondingconcave portion 110 to be engaged therein. - By above structure, the chair of the present invention has many various shapes. For example, the chairs are overlapped for storage (referring to FIG. 4). Namely, the legs of the
protrusion 13 of thefirst chair 10 are aligned to theconcave portion 110A of thechair surface 11A of thesecond chair surface 11A so that the first chair covers thesecond chair surface 11A. The bottom of thefirst chair surface 11 is almost adhered to the top of thesecond chair surface 11A, and the bottom of thesecond chair surface 11A is almost adhered to the top of thethird chair surface 11B, etc. Therefore, a plurality of chairs are overlapped for storage. Or, as illustrated in FIG. 2, thelegs 12 of thefirst chair 10 is interleaved with theconcave portion 110A of thesecond chair surface 11A. Then thefirst chair 10 is placed upon thesecond chair 10A. Theprotrusion 13 of the first chair resists against thechair surface 11A of thesecond chair 10A so that two chair surfaces are spaced with a distance (i.e., the length of the protrusion 13) so as to be a long assembly having a larger gap. Referring to FIG. 2, by a plurality of chairs A, B and C to connect transversally so as to be formed as a ladder with an equal spacing between different lattices, and thus a ladder or a display frame is assembled. The assembly structure is firmly and steady. - For assembling the chairs of the present invention to be formed as a ladder, or a display frame. The way is that the
buckle devices 120 of the outer sides of the bottoms of thelegs 12 are connected to each other so that teeth of thebuckling device 120 of thelegs 12 of the first chair is engaged downwards to the buckleddevice 120A of thelegs 12A of the second chair. Thus, the assembly work without transversal force is formed. As it is desired to be detached, a (or a series of) chair is moved upwards. Therefore, in the present invention, as ladder is assembled for using, the top of the chair does not worry about the displacement of the gravitation force so that the ladder is separated or collapsed. Furthermore, the ladder assembled by the present invention has a larger bottom area and the height can be formed according to a practical requirement. The application is convenient. While as the present invention is used as a receiving frame or a display frame. The chair surface of each chair may be used to place objects, especially used as a flower frame. Each chair surface is placed with a pot of flowers for as to be formed as a three dimensional ladder shape flower wall (referring to FIG. 8). It is very beautiful. - Referring to FIG. 9, another preferred embodiment of the present invention is shown. A chair100 includes a
chair surface 11, a plurality oflegs 12, longitudinal supportingprotrusions 13 at the inner lateral side of thelegs 12, which is alternatively spaced arrangement, bucklingdevices 120 installed at the bottoms of at least twolegs 12 and a reinforcedring 121 added between each two legs in connection with each twolegs 12 at the portion as near as the bottom of theprotrusion 13, as shown in FIG. 9. This provision will prevent theleg 12 from being collapsed when a large number of chairs are required to be longitudinally stacked. - In summary, the chair of the present invention has improved the conventional chair having a unique application. Furthermore, it may develop with various applications such as a ladder, a object receiving frame and a display frame.
- The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (5)
1. A chair capable of stacking like a ladder comprising a chair surface, a plurality of legs, a longitudinal supporting protrusion provided at an inner lateral sides of at least two legs of the chair, a plurality of concave portions the number of which is with respect to that of said longitudinal supporting protrusions, installed with at an outer periphery of the chair surface of said chair; said longitudinal supporting protrusions being resisted against another chair surface so that a plurality of chairs are arranged in longitudinal series so as to be formed with a ladder forming by a plurality of chairs.
2. The chair as claimed in claim 1 , wherein outer sides of bottoms of at least two legs of said chair are installed with respective buckling devices for being connected transversally to another chair to be formed as a ladder shape connection.
3. The chair as claimed in claim 2 , wherein said buckling device has a teeth structure, two adjacent buckling devices have teeth which are alternatively arranged.
4. The chair as claimed in claim 1 , wherein the longitudinal supporting protrusion of a first chair passes through the concave portion of a second chair so that as said chairs are not used, which are stacked.
5. The chair as claimed in claim 1 , wherein a reinforce ring is provided between two legs in connection with two chair legs at the positions near the bottom of the longitudinal supporting protrusions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/837,277 US20020153754A1 (en) | 2001-04-19 | 2001-04-19 | Assembled and multi-functional chair |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/837,277 US20020153754A1 (en) | 2001-04-19 | 2001-04-19 | Assembled and multi-functional chair |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020153754A1 true US20020153754A1 (en) | 2002-10-24 |
Family
ID=25274032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/837,277 Abandoned US20020153754A1 (en) | 2001-04-19 | 2001-04-19 | Assembled and multi-functional chair |
Country Status (1)
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US (1) | US20020153754A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050215104A1 (en) * | 2002-12-09 | 2005-09-29 | Lipniarski David J | Indented female blow-molded connector and male connector and method |
US20060232109A1 (en) * | 2005-04-13 | 2006-10-19 | S. Eredu | Stackable stool |
US20080067003A1 (en) * | 2006-09-15 | 2008-03-20 | Emge Mark B | Step-stool assemblies with continuous outer shells and related methods |
US20090058155A1 (en) * | 2007-05-08 | 2009-03-05 | Kerstin Bartlmae | Ganging device for chair |
CN102356963A (en) * | 2011-09-30 | 2012-02-22 | 倪既民 | Multipurpose stool capable of serving as layer-height adjustable shelf |
US8757718B1 (en) * | 2009-06-30 | 2014-06-24 | James F. Wloczewski | Portable seating apparatus |
US9974393B1 (en) * | 2017-05-09 | 2018-05-22 | Carol Lundquist | Convertible display stand to seating assembly |
US20190090640A1 (en) * | 2016-02-19 | 2019-03-28 | Purdue Research Foundation | Chair, stool assembly, and system |
US10368638B2 (en) * | 2016-05-16 | 2019-08-06 | Virco Mfg. Corporation | Multi-component reconfigurable furnishing assembly |
CN110665163A (en) * | 2019-10-09 | 2020-01-10 | 江苏美翔体育用品有限公司 | Stacking connection structure of trampoline and processing method thereof |
-
2001
- 2001-04-19 US US09/837,277 patent/US20020153754A1/en not_active Abandoned
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7234780B2 (en) * | 2002-12-09 | 2007-06-26 | Confer Plastics, Inc. | Indented female blow-molded connector and male connector and method |
US20050215104A1 (en) * | 2002-12-09 | 2005-09-29 | Lipniarski David J | Indented female blow-molded connector and male connector and method |
US20060232109A1 (en) * | 2005-04-13 | 2006-10-19 | S. Eredu | Stackable stool |
US20080067003A1 (en) * | 2006-09-15 | 2008-03-20 | Emge Mark B | Step-stool assemblies with continuous outer shells and related methods |
US20090058155A1 (en) * | 2007-05-08 | 2009-03-05 | Kerstin Bartlmae | Ganging device for chair |
US7810882B2 (en) * | 2007-05-08 | 2010-10-12 | Kerstin Bartlmae | Ganging device for chair |
US8757718B1 (en) * | 2009-06-30 | 2014-06-24 | James F. Wloczewski | Portable seating apparatus |
CN102356963A (en) * | 2011-09-30 | 2012-02-22 | 倪既民 | Multipurpose stool capable of serving as layer-height adjustable shelf |
US20190090640A1 (en) * | 2016-02-19 | 2019-03-28 | Purdue Research Foundation | Chair, stool assembly, and system |
US10779654B2 (en) * | 2016-02-19 | 2020-09-22 | Purdue Research Foundation | Chair, stool assembly, and system |
US10368638B2 (en) * | 2016-05-16 | 2019-08-06 | Virco Mfg. Corporation | Multi-component reconfigurable furnishing assembly |
US9974393B1 (en) * | 2017-05-09 | 2018-05-22 | Carol Lundquist | Convertible display stand to seating assembly |
CN110665163A (en) * | 2019-10-09 | 2020-01-10 | 江苏美翔体育用品有限公司 | Stacking connection structure of trampoline and processing method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |