Title:
LONG-LEGGED CHAIR STRUCTURE
Kind Code:
A1


Abstract:
A long-legged chair includes a chair leg frame, a seating part, a back part, a dining tray, and two armrests; the seating part is fitted on the chair leg frame in a separable manner, and it can be easily fitted to and separated from the chair leg frame; the back part is pivoted to the seating part in an adjustable manner; the armrests are fitted on top of the chair leg frame; the dining tray is fitted on and supported by the armrests in a forwards and rearwards displaceable manner such that it can be adjusted in position.



Inventors:
Cheng, Pao-hsien (Jen Te Hsiang, TW)
Application Number:
11/714792
Publication Date:
09/11/2008
Filing Date:
03/07/2007
Primary Class:
International Classes:
A47C3/00
View Patent Images:
Related US Applications:
20030214164Portable outdoor seatNovember, 2003Gervais
20090230749SWING-OUT JOYSTICKSeptember, 2009Kostak et al.
20080222789Back Stress Reducing Kneeling DeviceSeptember, 2008Pfeiffer
20090284057STACKABLE CHAIRNovember, 2009Kulish
20090267394Mechanism for an Office ChairOctober, 2009Bock
20090195025Tether Attachment For Seat TiltingAugust, 2009Shurts et al.
20060097555Rehabilitation apparatus for lumbosacral spineMay, 2006Meleger
20070052267Reclining therapeutic chair with multiple acoustic sourcesMarch, 2007Dodd
20070228790Seating apparatusOctober, 2007Schurg et al.
20090134679COMBINED MANUAL RECLINE AND MANUAL LUMBAR ADJUSTMENT MECHANISMMay, 2009Crainic et al.
20100026061ACTIVE HEAD RESTRAINT FOR A VEHICLE SEATFebruary, 2010Mcfalls et al.



Primary Examiner:
NELSON JR, MILTON
Attorney, Agent or Firm:
ROSENBERG, KLEIN & LEE (ELLICOTT CITY, MD, US)
Claims:
1. An improvement on a long-legged chair structure, comprising a chair leg frame, and a seating part fitted to an upper end of said chair leg frame in a separable manner, said chair leg frame having a plurality of supporting and fixing elements on each of two inward lateral sides thereof; each of said supporting and fixing elements including a standing detainment portion, and a lying support portion joined to a lower end of the standing detainment portion; said chair leg frame having an elastic securing piece between every two said supporting and fixing elements; each of said elastic securing pieces having a hooked tail portion; said seating part having a plurality of longitudinal detainment gaps on each of two outward lateral sides thereof; said standing detainment portions of said supporting and fixing elements of said chair leg frame being each received in a corresponding said longitudinal detainment gap of said seating part, with said lying support portions of said supporting and fixing elements propping said seating part; said seating part having a first detainment hole between every two said longitudinal detainment gaps; said hooked tail portions of said elastic securing pieces being each received in a corresponding said detainment hole and hooked over said seating part so as to fix said seating part and said chair leg frame together.

2. The improvement on a long-legged chair structure as recited in claim 1, wherein each of said elastic securing pieces has an aperture on each of two lateral sides and a lower side thereof.

3. The improvement on a long-legged chair structure as recited in claim 1, wherein the seating part has a holding portion at a front end thereof, and a stopping element is partly received in and secured to the holding portion; said stopping element being in a position corresponding to a location between two thighs of a little child to prevent the little child from falling off said seating part when the little child has been seated thereon.

4. The improvement on a long-legged chair structure as recited in claim 1 further having a back part; each of said seating part and said back part having a plurality of second detainment holes thereon for connection with a cloth member.

5. The improvement on a long-legged chair structure as recited in claim 1 further having a back part pivoted to a rear end of said seating part; said seating part having two hollow connecting portions thereon; said back part having a plurality of elongate guide gaps thereon; said back part having a plurality of co-moving members each passed through a respective one of said elongate guide gaps; said back part having a pulling element fitted thereon in a movable manner; said pulling element being joined to said co-moving members so as to cause said co-moving members to be displaced together with it; said back part including a plurality of hooking and securing bars pivoted on two lateral sides; said hooking and securing bars being each joined to a first end of a respective said co-moving member; said hooking and securing bars facing corresponding said seating part hollow connecting portions; said back part having a plurality of elastic elements biasing said hooking and securing bars so as to make said hooking and securing bars hooked over corresponding said hollow connecting portions to secure said back part to said seating part; said back part being allowed to pivot relative to said seating part for adjustment of position after said pulling element is operated to move said co-moving members with said hooking and securing bars so as to separate said hooking and securing bars from said hollow connecting portions of said seating part.

6. The improvement on a long-legged chair structure as recited in claim 5, wherein said hollow connecting portions of said seating part each include a plurality of position-limiting sections for allowing said hooking and securing bars of said back part to be hooked over.

7. The improvement on a long-legged chair structure as recited in claim 1 further having two armrests fitted on said chair leg frame, and a dining tray fitted on said armrests in an adjustable manner; said armrests each having a plurality of cavities thereon; said dining tray including: two guide rail units each fitted on a corresponding said armrest; an adjustment switch displaceably fitted thereon; a co-moving element connected to said adjustment switch; two propping plates secured thereon; two detainment blocks each joined to a respective one of two ends of said co-moving element; and two elastic return elements each propped by a corresponding said propping plate; said elastic return elements each biasing a corresponding said detainment block in order for allowing said detainment blocks to pass into said cavities of said armrests so as to secure said dining tray to said armrests; said dining tray being allowed to be slid over said armrests for adjustment of position after said adjustment switch is operated to move said co-moving element so as to separate said detainment blocks from said cavities of said armrests.

8. The improvement on a long-legged chair structure as recited in claim 7 further having a secondary dining tray fitted on said dining tray in a separable manner; said secondary dining tray having locating protrusions thereon; said locating protrusions having corresponding locating holes formed on an upper side of said dining tray.

Description:

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an improvement on a long-legged chair, more particularly one, which includes a chair leg frame, a seating part capable of being easily fitted on and separated from the chair leg frame, an adjustable back part pivoted to the seating part, and a dining tray capable of being moved forwards and rearwards to adjust position.

2. Brief Description of the Prior Art

Little children can more easily notice what adults are doing to/with them if they are seated in long-legged chairs so as to be as high as adults. Such a long-legged chair has a dining tray disposed in front of the seating part. Currently existing long-legged chairs are found to have the following disadvantages: Firstly, the seating parts can't be separated from the chair legs therefore the long-legged chairs can't be reduced in size to occupy less space and to be easy to store.

Secondly, the back parts are securely joined to the seating parts, and can't be adjusted in position. Consequently, when little children are seated on such long-legged chairs, they are prone to lean forwards, and feel uncomfortable. And, saliva and foods are prone to flow out when the little children are being fed.

Thirdly, the dining trays are fixed on the chairs, and can't be adjusted in position to be suitable for little children of different body sizes and ages. And, the position of the dining tray of a long-legged chair will become uncomfortable and unsuitable for a certain little child very soon owing to the rapid growth of the little child.

Therefore, there is still room for improvement in respect of the currently existing long-legged chairs.

SUMMARY OF THE INVENTION

It is a main object of the present invention to provide an improvement on a long-legged chair, which includes a chair leg frame, a seating part separable from the chair leg frame, an adjustable back part pivoted to the seating part, and a dining tray adjustable in position.

The chair leg frame has supporting and fixing elements thereon, which each include a standing detainment portion, and a lying support portion joined to a lower end of the standing detainment portion. The chair leg frame has elastic securing pieces thereon, which each have a hooked tail portion. The seating part has longitudinal detainment gaps on each of two outward lateral sides; the standing detainment portions of the supporting and fixing elements are received in the longitudinal detainment gaps of the seating part, with the lying support portions propping the seating part. In addition, the seating part has detainment holes, and the hooked tail portions of the elastic securing pieces are received in the detainment holes and hooked over the seating part so as to fix the seating part and the chair leg frame together.

The seating part has two hollow connecting portions while the back part has guide gaps, and co-moving members passed through the elongate guide gaps. The back part has a pulling element fitted thereon in a movable manner and joined to the co-moving members. The back part has hooking and securing bars pivoted thereon, which are each joined to a first end of one of the co-moving members. The back part has several elastic elements biasing the hooking and securing bars so as to make the bars hooked over the hollow connecting portions to fix the back part to the seating part. The back part will be allowed to pivot relative to the seating part for adjustment of position after the pulling element is operated so as to separate the hooking and securing bars from the hollow connecting portions of the seating part.

The armrests each have several cavities spaced thereon while the dining tray includes two guide rail units each fitted on a corresponding said armrest, an adjustment switch, a co-moving element connected to the adjustment switch, two secured propping plates, two detainment blocks each joined to one end of the co-moving element, and two elastic return elements propped by respective ones of the propping plates. The elastic return elements bias the detainment blocks in order for allowing the detainment blocks to pass into the cavities of the armrests so as to secure the dining tray to the armrests. The dining tray will be allowed to slide over the armrests for adjustment of position after the adjustment switch is operated so as to separate the detainment blocks from the cavities of the armrests.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be better understood by referring to the accompanying drawings, wherein:

FIG. 1 is a perspective view of the present invention,

FIG. 2 is a fragmentary exploded perspective view of the present invention,

FIG. 3 is a partial side view of the seating part of the invention,

FIG. 4 is a front perspective view of the back part of the invention,

FIG. 5 is a rear perspective view of the back part of the invention,

FIG. 6 is a side view of the seating part with the back part of the present invention,

FIG. 7 is a partial sectional view of the seating part with the back part,

FIG. 8 is an exploded perspective view of the dining tray (1),

FIG. 9 is an exploded perspective view of the dining tray (2),

FIG. 10 is an exploded perspective view of the dining tray (3),

FIG. 11 is a side view of the chair leg frame with the seating part,

FIG. 12 is a front view of the leg frame with the seating part (1),

FIG. 13 is a front view of the leg frame with the seating part (2),

FIG. 14 is a partial view of the back part under adjustment (1),

FIG. 15 is a partial view of the back part under adjustment (2),

FIG. 16 is a partial view of the dining tray under adjustment (1),

FIG. 17 is a partial view of the dining tray under adjustment (2),

FIG. 18 is a sectional view of the dining tray with the secondary dining tray of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 1, a preferred embodiment of a long-legged chair of the present invention includes a chair leg frame 1, a seating part 2, a back part 3, and a dining tray 4.

Referring to FIG. 2 as well, the chair leg frame 1 has two supporting and fixing elements 12 on each of two inward lateral sides 11 thereof, and two elastic securing pieces 13, which are each provided between a corresponding pair of said supporting and fixing elements 12. There are two armrests 15 provided on the chair leg frame 1, which are each right above a respective said inward lateral side 11.

The supporting and fixing elements 12 each include a standing detainment portion 121, and a lying support portion 122 joined to a lower end of the standing detainment portion 121. Each of the elastic securing pieces 13 has a hooked portion 131 at a tail end thereof. There are apertures 14 provided on two lateral sides and a lower side of each of the elastic securing pieces 13; thus, the elastic securing pieces 13 have elasticity. Each of the armrests 15 has several aligned cavities 151 on an inward side thereof.

Referring to FIG. 1 as well as FIG. 2 to FIG. 4, the seating part 2 has two longitudinal detainment gaps 22 on each of two outward lateral sides 21 thereof for receiving the detainment portions 121 of the supporting and fixing elements 12. The seating part 2 further has a detainment hole 23 between each pair of said longitudinal detainment gaps 22 for receiving a corresponding said elastic securing piece hooked portion 131. The seating part 2 has two hollow connecting portions 24 on a rear end thereof, which each have several spaced position-limiting sections 241 therein, for connection with the back part 3. The seating part 2 further has several detainment holes 25 thereon for connection with a seating cloth member. The seating part 2 has a holding portion 26 at a front end thereof, and a stopping element 261 is partly received in and secured to the holding portion 26, which stopping element 261 will be between two thighs of a baby to prevent the baby from falling off the seating part 2 after the baby is seated on the chair.

Referring to FIG. 4 to FIG. 7 as well, the back part 3 is pivoted to the seating part 2, and has two elongate guide gaps 31, which each extend to a respective one of two lateral sides of the back part 3 so as to communicate with a corresponding said seating part hollow connecting portion 24. The back part 3 has two co-moving members 32 each passed through a respective one of the elongate guide gaps 31. The back part 3 further has a pulling element 33 fitted thereon in a movable manner. The pulling element 33 is joined to both the co-moving members 32; thus, the co-moving elements 32 will be displaced together with the pulling element 33. The back part 3 further includes two hooking and securing bars 34, which are pivoted on two lateral sides of the back part 3, and each joined to a respective one of the co-moving members 32. The hooking and securing bars 34 each face a respective one of the hollow connecting portions 24 of the seating part 2, and are each biased by means of an elastic element 341. The elastic elements 341 are provided for biasing the hooking and securing bars 34 in order for the hooking and securing bars 34 to be hooked over the position-limiting sections 241 of the hollow connecting portions so as to secure the back part 3 to the seating part 2. Furthermore, the back part 3 has several detainment holes 35 thereon for allowing a back cloth member to be connected thereto.

Referring to FIG. 8 to FIG. 10, the dining tray 4 has two guide rail units 41 on a bottom thereof, which are connected to respective ones of the armrests 15 in order for the dining tray 4 to be held on the armrests 15 in an adjustable manner. The guide rail units 41 each have a through hole 411. The dining tray 4 has an adjustment switch 42, and a co-moving element 43 connected to the adjustment switch 42. The dining tray 4 has propping plates 46 secured on the bottom. The dining tray 4 has two detainment blocks 44 each joined to a respective one of two ends of the co-moving element 43. The detainment blocks 44 each pass through a corresponding said guide rail unit through hole 411, and are each biased by means of an elastic return element 45, which is positioned around the co-moving element 43, and which is propped by a corresponding said propping plate 46 at one end thereof. The dining tray 4 has a covering member 47 fitted on the bottom to hold the adjustment switch 42, the co-moving element 43, the detainment blocks 44, and the elastic return elements 45. The dining tray 4 is usually firmly held in position with the guide rail units 41 being fitted on respective ones of the armrests 15, and with the detainment blocks 44 being biased by the elastic return elements 45 so as to be received in the cavities 151 of the armrests 15. The switch 42 can be operated to move the co-moving element 43 so as to separate the detainment blocks 44 from the cavities 151 of the armrests 15. Furthermore, a secondary dining tray 49 is held on the dining tray 4; the dining tray 4 has several locating holes 48 on an upper side thereof, and the secondary dining tray 49 has several locating protrusions 491, and is joined to the dining tray 4 with the locating protrusions 491 being received in the locating holes 48.

Referring to FIG. 11 to FIG. 13, views of the seating part 2 and the chair leg frame 1 fitted together, the seating part 2 is passed between two lateral sides of the chair leg frame 1; thus, the standing detainment portions 121 of the supporting and fixing elements 12 are received in the detainment gaps 22 of the seating part 2, and the seating part 2 is propped by the lying support portions 122, and the hooked portions 131 of the elastic securing pieces 13 are passed into the detainment holes 23 and hooked over the seating part 2. Consequently, the seating part 2 and the chair leg frame 1 are joined together. The seating part 2 and the chair leg frame 1 are allowed to be moved in opposite directions to separate from each other after the hooked portions 131 of the elastic securing pieces 13 are moved outside the detainment holes 23. Therefore, the seating part 2 is easy to remove from the chair leg frame 1.

Referring to FIGS. 14 and 15, views of the back part 3 under adjustment, the pulling element 33 is operated to pull the co-moving member 32 so as to move and separate the hooking and securing bars 34 from the position-limiting sections 241 of the hollow connecting portions 24 of the seating part 2 in order for allowing the back part 3 to pivot on the seating part 1. After the back part 3 has been adjusted to a proper position, the pulling element 33 is released, without being operated by the user; thus, the elastic elements 341 bias the hooking and securing bars 34 back to the original position, and the hooking and securing bars 34 are hooked over corresponding position-limiting sections 241 of the hollow connecting portions 24. Consequently, the back part 3 is fixed to the seating part 1.

Referring to FIGS. 16 and 17, views of the dining tray 4 under adjustment, the adjustment switch 42 is operated to move the co-moving element 43 so as to move the detainment blocks 44 out of the cavities 151 of the armrests 15; thus, the dining tray 4 is allowed to be slid on the armrests 15 for adjustment of position. After the dining tray 4 has been moved to a proper position, the adjustment switch 42 is released; thus, the elastic return elements 45 bias and move the detainment blocks 44 into corresponding said cavities 151 of the armrests 15, and the dining tray 4 is fixed on the armrests 15. Referring to FIG. 18, the secondary dining tray 49 is fitted on the dining tray 4 with the locating protrusions 491 being received in the locating holes 48 in a separable manner; the dining tray 4 and the secondary dining tray 49 can be used for different purposes, e.g. reading and playing.

From the above description, it can be seen that the present invention has the following advantages:

1. The seating part and the chair leg frame can be easily joined together and separated. Therefore, the long-legged chair is convenient to use, and relatively easy to package, store, carry and transport.

2. The back part can be adjusted in position relative to the seating part so as to provide more comfort to the little child as well as making it easier to feed the little child.

3. The seating part has a stopping element secured thereon, which will be between two thighs of a little child to prevent the little child from sliding forwards and falling off the seating part after the little child is seated on the chair. Therefore, the long-legged chair is safe to use.

4. The seating part and the back part each have several detainment holes thereon therefore a cloth member can be firmly joined to the seating part and the back part.

5. The dining tray can be moved forwards and rearwards to a proper position according to the body size of a little child seated on the long-legged chair, thus making the chair more comfortable.





 
Previous Patent: CHAIR FOOTREST MECHANISM

Next Patent: RECLINING APPARATUS