US20220218110A1 - Three-leg star shaped assembly structure for supporting chair legs - Google Patents
Three-leg star shaped assembly structure for supporting chair legs Download PDFInfo
- Publication number
- US20220218110A1 US20220218110A1 US17/399,308 US202117399308A US2022218110A1 US 20220218110 A1 US20220218110 A1 US 20220218110A1 US 202117399308 A US202117399308 A US 202117399308A US 2022218110 A1 US2022218110 A1 US 2022218110A1
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- United States
- Prior art keywords
- groove
- support
- mounting
- cylinder axis
- connecting section
- 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.)
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
- A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs
-
- 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
- A47C7/002—Chair or stool bases
- A47C7/006—Chair or stool bases with castors
Definitions
- the utility patent application relates to a supporting chair leg, in particular to a three-leg disassembly and assembly structure for supporting the chair leg in a star shape.
- a chair is a kind of furniture for daily life, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion. In order to reduce costs, reduce packaging volume, and facilitate transportation, people invented detachable seats, usually the seat that is disassembled and separated from the back and legs of the chair.
- the supporting leg of the existing chair cannot be separated from the chair leg and the central part from each other, and the supporting leg still has the problems of occupying a large space and high packaging and transportation costs, The flexibility needs to be improved.
- the supporting leg and the center piece of the existing chair have no reinforcement structure, and the leg is subject to heavy pressure for a long time, which is easy to break and has poor stability.
- a star-shaped three-leg assembly and disassembly structure for supporting chair legs may comprise a central support, a mounting part and a support foot.
- the mounting part is integrally fixed to the outer side wall of the central support.
- the support foot is movably connected to the mounting part away from the center.
- a walking pulley is rotatably connected to one end of the support member and the bottom end of the support foot.
- the central position of the top surface of the central support member is provided with a through slot, and a connecting post is movably inserted through the through slot.
- the head end of the mounting part is provided with a mounting groove, the two side walls of the mounting groove are integrally provided with a rotating groove, and the inner rear end of the mounting groove forms a limiting groove.
- the rear end of the supporting leg is integrally fixed with the connecting section which is fixedly inserted with a cylinder axis in the middle position of the connecting section, and the rear end of the connecting section is integrally connected with an abutting section.
- the five mounting parts are distributed in an “annular” array on the outside of the central support.
- the shape of the inner wall of the insertion slot matches the shape of the outer wall of the connecting column, and the connecting column is movably inserted into the center support through the insertion slot.
- the limiting groove is formed by protruding the inner wall of the mounting groove toward the central support, and the limiting groove movably abuts under the abutment section.
- the cylinder axis portion is cylindrical, protrudes from the side surface of the connecting section to both sides, and the length of the cylinder axis portion is greater than the width of the connecting section.
- the length of the cylinder axis portion is greater than the distance between the two groove walls of the mounting groove, and the length of the cylinder axis portion is less than or equal to the distance between the two groove walls of the rotating groove.
- the embodiment of the utility patent application provides a star-shaped three-leg assembly and disassembly structure for supporting chair legs, which has the following beneficial effects: the support leg and the central support are convenient and quick to install and disassemble, can effectively reduce the packaging volume, is convenient for transportation. When a single support foot is damaged, you only need to replace the damaged support foot separately, which is low maintenance cost.
- the rotating groove is limited and fixed to the support foot through the cylinder axis in the radial direction. The limiting groove can prevent the support foot from being compressed. Rotating relative to the central support, the support feet are firmly connected with the central support and the support strength is high.
- the connecting section of the supporting leg is vertically inserted into the installation groove, so that the cylinder axis is snapped into the rotating groove, and then the supporting leg is rotated upwards by ninety degrees until the abutting section of the support foot can be installed by pressing against the limiting groove.
- the support foot When disassembling, rotate the support foot down ninety degrees and separate the connecting section from the installation slot to realize the disassembly of the support foot.
- the installation and disassembly are convenient and fast, which can effectively reduce packaging volume and easy to transport. When a single support foot is damaged, only the damaged support foot needs to be replaced separately, and the maintenance cost is low.
- the rotating groove not only plays a guiding role during installation, and facilitates the installation of the supporting leg, but also restricts and fixes the supporting leg in the radial direction through the cylinder axis to prevent the supporting leg from moving in the radial direction relative to the central support.
- the ends of the limiting groove and the mounting groove are respectively supported on the connecting section in the up and down direction to prevent the support foot from rotating relative to the central support under pressure.
- the supporting feet are firmly connected with the central support, and the supporting strength is high.
- FIG. 1 is a schematic diagram of the overall structure of the utility patent application
- FIG. 2 is a schematic diagram of the sectional structure of the installation part of the utility patent application
- FIG. 3 is a schematic view of the sectional structure of the connection between the mounting part and the supporting leg of the present invention.
- FIG. 1 Central support; 2 . Mounting part; 201 , mounting groove; 202 , rotating groove; 203 , limiting groove; 3 . supporting leg; 301 , connecting section; 302 , cylinder axis part; 303 , abutment Section; 4 . Walking pulley; 5 . Pass through slot; 6 . Connect post.
- a star-shaped three-leg assembly and disassembly structure for supporting chair legs includes a central support 1 , a mounting portion 2 and a support leg 3 .
- the mounting portion 2 is integrally fixed to the central support 1 on the outer side wall.
- the supporting leg 3 is movably connected to the end of the mounting portion 2 away from the central support 1 , and the bottom end of the supporting leg 3 is rotatably connected to the walking pulley 4 , and the center of the top surface of the central support 1 is provided with an insertion slot 5 , the inside of the slot 5 is movably inserted with a connecting post 6 ;
- a mounting groove 201 is provided at the head end of the mounting portion 2 , and the two side walls of the mounting groove 201 are integrally provided with a rotating groove 202 , and the inner rear end of the mounting groove 201 forms a limiting groove 203 ,
- the rear end of the supporting leg 3 is integrally fixed with a connecting section 301 , the middle of the connecting section 301 is fixedly inserted with a cylinder axis 302 , and the rear end of the connecting section 301 is integrally connected with an abutting section 303 .
- the shape of the inner wall of the insertion slot 5 matches the shape of the outer wall of the connecting column 6 , which is movably inserted into the center support 1 through the insertion slot 5 .
- the limiting groove 203 is formed by protruding the inner wall of the mounting groove 201 toward the central support 1 , and the limiting groove 203 movably abuts below the abutting section 303 .
- the cylinder axis portion 302 is cylindrical and protrudes from the side surface of the connecting section 301 to both sides, and the length of the cylinder axis portion 302 is greater than the width of the connecting section 301 .
- the length of the cylinder axis portion 302 is greater than the distance between the two groove walls of the mounting groove 201 , and the length of the cylinder axis portion 302 is less than or equal to the distance between the two groove walls of the rotating groove 202 .
- the connecting section 301 of the supporting leg 3 is vertically inserted into the mounting groove 201 , so that the cylinder axis portion 302 is clamped into the rotating groove 202 , and then the supporting leg 3 is rotated upward at about 90 degrees, until the abutting section 303 abuts against the limiting groove 203 , the installation of one supporting leg 3 can be completed, and the five supporting legs 3 are installed in the corresponding installation portion 2 in the above manner to complete the installation of the chair leg.
- the connecting column 6 may be inserted into the through slot 5 and fix the top of the connecting column 6 under the chair base to complete the overall installation of the chair.
- the rotating groove 202 not only plays a guiding role during installation, but also is convenient for the installation of the supporting leg 3 , and the supporting leg 3 is restricted and fixed in the radial direction by the cylinder axis 302 to prevent the supporting leg 3 from moving in the radial direction relative to the central support 1 .
- the support foot 3 may be rotated ninety degrees downwards, the cylinder axis 302 may be pulled out of the rotation groove 202 , and the connecting section 301 may be separated from the mounting groove 201 to realize the disassembly of the support foot 3 .
- the process is convenient and quick to install and remove. It can effectively reduce the packaging volume, facilitate transportation. When the single support foot 3 is damaged, only the damaged support foot 3 needs to be replaced separately, and the maintenance cost is low.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention disclosure relates to the technical field of supporting chair legs, in particular to a three-leg assembly and disassembly structure for supporting chair legs in a star shape. The foot is movably connected to the end of the mounting part away from the central support. By providing a mounting groove and a connecting section, the connecting section of the supporting foot is vertically inserted into the mounting groove, so that the cylinder axis part is clamped into the limiting groove and then rotated the support foot upward ninety degrees, until the abutment section abuts against the limiting groove, the support foot can be installed.
Description
- This patent application claims the benefit of Chinese Patent Application No. 202120055021.9, filed Jan. 11, 2021, of which is incorporated by reference herein.
- The utility patent application relates to a supporting chair leg, in particular to a three-leg disassembly and assembly structure for supporting the chair leg in a star shape.
- A chair is a kind of furniture for daily life, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion. In order to reduce costs, reduce packaging volume, and facilitate transportation, people invented detachable seats, usually the seat that is disassembled and separated from the back and legs of the chair.
- However, the supporting leg of the existing chair cannot be separated from the chair leg and the central part from each other, and the supporting leg still has the problems of occupying a large space and high packaging and transportation costs, The flexibility needs to be improved. In addition, the supporting leg and the center piece of the existing chair have no reinforcement structure, and the leg is subject to heavy pressure for a long time, which is easy to break and has poor stability.
- In order to solve the above technical problems, the present utility patent application provides the following technical solutions:
- A star-shaped three-leg assembly and disassembly structure for supporting chair legs, may comprise a central support, a mounting part and a support foot. The mounting part is integrally fixed to the outer side wall of the central support. The support foot is movably connected to the mounting part away from the center. A walking pulley is rotatably connected to one end of the support member and the bottom end of the support foot. The central position of the top surface of the central support member is provided with a through slot, and a connecting post is movably inserted through the through slot. The head end of the mounting part is provided with a mounting groove, the two side walls of the mounting groove are integrally provided with a rotating groove, and the inner rear end of the mounting groove forms a limiting groove. The rear end of the supporting leg is integrally fixed with the connecting section which is fixedly inserted with a cylinder axis in the middle position of the connecting section, and the rear end of the connecting section is integrally connected with an abutting section.
- As a preferred technical solution of the present invention, there are five mounting parts, and the five mounting parts are distributed in an “annular” array on the outside of the central support.
- As a preferred technical solution of the present invention, the shape of the inner wall of the insertion slot matches the shape of the outer wall of the connecting column, and the connecting column is movably inserted into the center support through the insertion slot.
- As a preferred technical solution of the present invention, the limiting groove is formed by protruding the inner wall of the mounting groove toward the central support, and the limiting groove movably abuts under the abutment section.
- As a preferred technical solution of the present invention, the cylinder axis portion is cylindrical, protrudes from the side surface of the connecting section to both sides, and the length of the cylinder axis portion is greater than the width of the connecting section.
- As a preferred technical solution of the present invention, the length of the cylinder axis portion is greater than the distance between the two groove walls of the mounting groove, and the length of the cylinder axis portion is less than or equal to the distance between the two groove walls of the rotating groove.
- The embodiment of the utility patent application provides a star-shaped three-leg assembly and disassembly structure for supporting chair legs, which has the following beneficial effects: the support leg and the central support are convenient and quick to install and disassemble, can effectively reduce the packaging volume, is convenient for transportation. When a single support foot is damaged, you only need to replace the damaged support foot separately, which is low maintenance cost. The rotating groove is limited and fixed to the support foot through the cylinder axis in the radial direction. The limiting groove can prevent the support foot from being compressed. Rotating relative to the central support, the support feet are firmly connected with the central support and the support strength is high.
- 1. Through the mounting groove and the connecting section, the connecting section of the supporting leg is vertically inserted into the installation groove, so that the cylinder axis is snapped into the rotating groove, and then the supporting leg is rotated upwards by ninety degrees until the abutting section of the support foot can be installed by pressing against the limiting groove. When disassembling, rotate the support foot down ninety degrees and separate the connecting section from the installation slot to realize the disassembly of the support foot. The installation and disassembly are convenient and fast, which can effectively reduce packaging volume and easy to transport. When a single support foot is damaged, only the damaged support foot needs to be replaced separately, and the maintenance cost is low.
- 2. By providing a rotating groove and a limiting groove, the rotating groove not only plays a guiding role during installation, and facilitates the installation of the supporting leg, but also restricts and fixes the supporting leg in the radial direction through the cylinder axis to prevent the supporting leg from moving in the radial direction relative to the central support. In addition, when the support foot is pressed, the ends of the limiting groove and the mounting groove are respectively supported on the connecting section in the up and down direction to prevent the support foot from rotating relative to the central support under pressure. The supporting feet are firmly connected with the central support, and the supporting strength is high.
- The accompanying drawings are used to provide a further understanding of the utility patent application and constitute a part of the specification. Together with the embodiments of the utility patent application, they are used to explain the utility patent application and do not constitute a limitation to the utility patent application. In the attached picture:
-
FIG. 1 is a schematic diagram of the overall structure of the utility patent application; -
FIG. 2 is a schematic diagram of the sectional structure of the installation part of the utility patent application; -
FIG. 3 is a schematic view of the sectional structure of the connection between the mounting part and the supporting leg of the present invention. - In the figure: 1. Central support; 2. Mounting part; 201, mounting groove; 202, rotating groove; 203, limiting groove; 3. supporting leg; 301, connecting section; 302, cylinder axis part; 303, abutment Section; 4. Walking pulley; 5. Pass through slot; 6. Connect post.
- The preferred embodiments of the present utility patent application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility patent application, and are not used to limit the present utility patent application.
- Example:
- As shown in
FIGS. 1-3 , a star-shaped three-leg assembly and disassembly structure for supporting chair legs includes acentral support 1, amounting portion 2 and a support leg 3. Themounting portion 2 is integrally fixed to thecentral support 1 on the outer side wall. The supporting leg 3 is movably connected to the end of themounting portion 2 away from thecentral support 1, and the bottom end of the supporting leg 3 is rotatably connected to thewalking pulley 4, and the center of the top surface of thecentral support 1 is provided with aninsertion slot 5, the inside of theslot 5 is movably inserted with a connectingpost 6; amounting groove 201 is provided at the head end of themounting portion 2, and the two side walls of themounting groove 201 are integrally provided with arotating groove 202, and the inner rear end of themounting groove 201 forms alimiting groove 203, the rear end of the supporting leg 3 is integrally fixed with a connectingsection 301, the middle of the connectingsection 301 is fixedly inserted with acylinder axis 302, and the rear end of the connectingsection 301 is integrally connected with anabutting section 303. - Among them, there are five
mounting parts 2, which are distributed outside thecentral support 1 in an “annular” array. - Optionally in any embodiment, the shape of the inner wall of the
insertion slot 5 matches the shape of the outer wall of the connectingcolumn 6, which is movably inserted into thecenter support 1 through theinsertion slot 5. - Optionally in any embodiment, the
limiting groove 203 is formed by protruding the inner wall of themounting groove 201 toward thecentral support 1, and thelimiting groove 203 movably abuts below theabutting section 303. - The
cylinder axis portion 302 is cylindrical and protrudes from the side surface of the connectingsection 301 to both sides, and the length of thecylinder axis portion 302 is greater than the width of the connectingsection 301. - The length of the
cylinder axis portion 302 is greater than the distance between the two groove walls of themounting groove 201, and the length of thecylinder axis portion 302 is less than or equal to the distance between the two groove walls of therotating groove 202. - In use, firstly, the connecting
section 301 of the supporting leg 3 is vertically inserted into themounting groove 201, so that thecylinder axis portion 302 is clamped into therotating groove 202, and then the supporting leg 3 is rotated upward at about 90 degrees, until theabutting section 303 abuts against thelimiting groove 203, the installation of one supporting leg 3 can be completed, and the five supporting legs 3 are installed in thecorresponding installation portion 2 in the above manner to complete the installation of the chair leg. After that, the connectingcolumn 6 may be inserted into the throughslot 5 and fix the top of the connectingcolumn 6 under the chair base to complete the overall installation of the chair. Therotating groove 202 not only plays a guiding role during installation, but also is convenient for the installation of the supporting leg 3, and the supporting leg 3 is restricted and fixed in the radial direction by thecylinder axis 302 to prevent the supporting leg 3 from moving in the radial direction relative to thecentral support 1. - In addition, when the supporting leg 3 is pressed, the ends of the limiting
groove 203 and the mountinggroove 201 are respectively supported on the connectingsection 301 in the up and down direction to prevent the supporting leg 3 from being pressed and rotating relative to thecentral support 1, and the supporting leg 3 is firmly connected to thecentral support 1 with strong support strength. To disassemble the chair leg, the support foot 3 may be rotated ninety degrees downwards, thecylinder axis 302 may be pulled out of therotation groove 202, and the connectingsection 301 may be separated from the mountinggroove 201 to realize the disassembly of the support foot 3. The process is convenient and quick to install and remove. It can effectively reduce the packaging volume, facilitate transportation. When the single support foot 3 is damaged, only the damaged support foot 3 needs to be replaced separately, and the maintenance cost is low. - Finally, it should be noted that in the description of the present utility patent application, it should be noted that the orientation or positional relationship indicated by the terms “vertical”, “upper”, “lower”, “horizontal”, etc. are based on the drawings shown. The orientation or positional relationship is only for the convenience of describing and simplifying the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to limit the present invention.
- In the description of the present utility patent application, it should also be noted that, unless otherwise clearly specified and limited, the terms “set”, “installation”, “linked”, and “connected” should be understood in a broad sense, for example, it may be a fixed connection. It can also be detachably connected or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility patent application can be understood according to specific circumstances.
- The above descriptions are only preferred embodiments of the present utility patent application and are not intended to limit the present utility patent application. Although the present utility patent application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still comment on the foregoing the technical solutions recorded in each embodiment are modified, or some of the technical features are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility patent application shall be included in the protection scope of the present utility patent application.
Claims (2)
1. A star-shaped three-leg assembly and disassembly structure for supporting chair legs, comprising a central support, a mounting portion and a supporting leg, wherein the mounting portion is integrally fixed to an outer side wall of the central support, a support foot is movably connected to an end of a mounting part away from the central support, and a bottom end of the support foot is rotatably connected with a walking pulley, wherein a through slot is opened at a center of a top surface of the central support, and a connecting column is movably inserted in the through slot;
wherein a mounting groove is opened at a head end of the mounting portion, two side walls of the mounting groove are integrally provided with a rotating groove, and an inner rear end of the mounting groove is positioned a limiting groove, a connecting section is integrally fixed at a tail end of the support leg, and a cylinder axis is removablyt inserted through a middle of the connecting section, and the rear end of the connecting section is integrally connected with an abutting section, wherein the abutting section sits in a horizontal direction when the abutting section of the support leg is locked to the mounting portion, wherein the mounting portion is distributed in an annular array aroune the outside center support; a shape of an inner wall of the insertion slot matches a shape of the outer wall of a connecting column, and the connecting column is movably inserted into an inside of the central suport through the insertion slot; wherein the limiting groove is formed by the inner wall of the mounting groove protruding toward the central support, and the limiting groove movably abuts below the abutting section: wherein the cylinder axis portion is cylindrical and protrudes from a side of the connecting section to both sides, and the length of the cylinder axis is greater than the width of the connecting section: wherein a length of the cylinder axis portion is greater than a distance between the two groove walls of the mounting groove, and the length of the cylinder axis portion is less than or equal to the distance between the two groove walls of the rotating groove.
2.-6. (canceled)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202120055021.9 | 2021-01-11 | ||
CN202120055021 | 2021-01-11 |
Publications (1)
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US20220218110A1 true US20220218110A1 (en) | 2022-07-14 |
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Application Number | Title | Priority Date | Filing Date |
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US17/399,308 Abandoned US20220218110A1 (en) | 2021-01-11 | 2021-08-11 | Three-leg star shaped assembly structure for supporting chair legs |
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Cited By (4)
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US20210321777A1 (en) * | 2019-07-23 | 2021-10-21 | Zhejiang Yuyue Furniture Co., Ltd. | Connecting structure between feet and central member, feet, central member, chassis and chair |
US11470970B1 (en) * | 2021-08-13 | 2022-10-18 | Anji Kadi Furniture Technology Co., Ltd. | Connecting mechanism of detachable chair foot and assembling method associated therewith, and chair foot assembly |
USD971655S1 (en) * | 2020-09-29 | 2022-12-06 | Jayesh Bhakta | Chair base |
US20230147575A1 (en) * | 2021-11-08 | 2023-05-11 | Living Style (B.V.I.) Limited | Ready to assemble chair base |
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US11470970B1 (en) * | 2021-08-13 | 2022-10-18 | Anji Kadi Furniture Technology Co., Ltd. | Connecting mechanism of detachable chair foot and assembling method associated therewith, and chair foot assembly |
US20230147575A1 (en) * | 2021-11-08 | 2023-05-11 | Living Style (B.V.I.) Limited | Ready to assemble chair base |
US11950706B2 (en) * | 2021-11-08 | 2024-04-09 | Living Style (B.V.I.) Limited | Ready to assemble chair base |
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