CN101361623A - Backrest of foldable dining chair - Google Patents
Backrest of foldable dining chair Download PDFInfo
- Publication number
- CN101361623A CN101361623A CN200710025885.0A CN200710025885A CN101361623A CN 101361623 A CN101361623 A CN 101361623A CN 200710025885 A CN200710025885 A CN 200710025885A CN 101361623 A CN101361623 A CN 101361623A
- Authority
- CN
- China
- Prior art keywords
- backrest
- latch fitting
- lockhole
- dining chair
- shifting part
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/002—Children's chairs adjustable
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a backrest mechanism of a folding dining chair, which comprises a backrest seat, a backrest which is pivotally connected with the backrest seat by a first rotation axis, and a handrail frame which is rotatablely arranged with the upper part of the backrest seat; a locking part is arranged on the backrest in a sliding manner; the backrest seat is at least provided with a first keyhole and a second keyhole; the locking part has three states: the locking part is inserted in the first keyhole; the locking part is inserted in the second keyhole; and the locking part is separated from the first keyhole and the second keyhole, and a locking part toggle mechanism is arranged between the backrest seat and the handrail frame; the locking part toggle mechanism comprises a toggle part which is used for controlling the locking part to slide relatively to the backrest; in the process when the dinning chair is converted into the folding state from the unfolding state, the toggle part leans against the locking part until the locking part detaches from the first keyhole, at that time, the dinning chair is still in the process of being converted into the folding state from the unfolding state, and locking part slides on the backrest seat until sliding into the second keyhole, namely, the backrest automatically enters a preferred position in the process when the dinning chair is folded, thereby facilitating the folding of the dinning chair.
Description
Technical field
The present invention relates to a kind of Foldable dining chair, especially the backrest of foldable dining chair.
Background technology
Foldable dining chair of the prior art generally includes the backrest seat, rod members such as the arm-rest frame that is provided with, seat post, preceding support leg, seat vertical rod rotate with the top of described backrest seat, and the formation that is hinged between these rod members linkage, make described dining chair to fold, therefore described dining chair has deployed condition and folded state.Described dining chair also comprises backrest, described backrest by first rotating shaft be connected with described backrest seat phase pivot, the rotation placement of described arm-rest frame and described backrest seat is positioned at the top of first rotating shaft, be provided with latch fitting on the described backrest slidably, have first lockhole and second lockhole on the described backrest seat at least.Described latch fitting has three states, when described latch fitting is under first state, described latch fitting is inserted in described first lockhole, when described latch fitting is under second state, described latch fitting is inserted in described second lockhole, when described latch fitting is under the third state, described latch fitting and described first lockhole, described second lockhole all are separated.Be provided with versatilely on the described backrest and be used to control the operating parts that described latch fitting moves, when described dining chair is under the deployed condition, the user can operate described operating parts as required, make described latch fitting between described first state and described second state, change, thereby regulate the position of described backrest with respect to described backrest seat; Be under the folded state and work as described dining chair, described backrest has the folding optimum position with respect to described backrest seat, if say, described latch fitting was in for second state following time, described backrest seat is in folding optimum position, if after the described chair folds, described latch fitting is under first state, just need the operator to operate described operating parts this moment and make described backrest enter described folding optimum position, folding operation is trouble.
Summary of the invention
The object of the invention provides a kind of backrest of foldable dining chair, and its described backrest can automatically enter folding optimum position in deployed condition in the process of folded state conversion, and folding operation is easier.
For achieving the above object, the technical solution used in the present invention is: a kind of backrest of foldable dining chair, comprise the backrest seat, the backrest that is connected with described backrest seat phase pivot by first rotating shaft, the arm-rest frame that rotates and be provided with the top of described backrest seat, the rotation placement of described arm-rest frame and described backrest seat is positioned at the top of first rotating shaft, be provided with latch fitting on the described backrest slidably, at least have first lockhole and second lockhole on the described backrest seat, described latch fitting has three states, when described latch fitting is under first state, described latch fitting is inserted in described first lockhole, when described latch fitting is under second state, described latch fitting is inserted in described second lockhole, when described latch fitting is under the third state, described latch fitting and described first lockhole, described second lockhole all is separated, be provided with the latch fitting toggle mechanism between described backrest seat and the described arm-rest frame, described latch fitting toggle mechanism comprises and is used to control the shifting part that described latch fitting slides with respect to backrest, described dining chair from deployed condition to the process of folded state conversion, described shifting part is against on the described latch fitting, and described latch fitting is converted to the third state from first state.
Described latch fitting toggle mechanism also comprises the chute that is opened on the described backrest seat, described chute is connected with described first lockhole, described shifting part and described backrest seat are provided with rotatedly, has the struck side on the described shifting part, described struck side is that the circumferencial direction in the center of circle is inserted in the described chute slidably along the center of rotation of described shifting part, when described dining chair from deployed condition to the process of folded state conversion, described struck side is against on the described latch fitting, and described latch fitting is converted to the third state from first state.
Described shifting part is slidingly arranged on the described arm-rest frame along the fore-and-aft direction of described arm-rest frame.
Have guide post on the described arm-rest frame, have pilot hole on the described shifting part, described pilot hole departs from the rotational axis line of described shifting part, and described guide post is inserted in the described pilot hole slidably.
The rotational axis line of described shifting part is departed from described struck side, and the center of rotation that described chute is opened in described shifting part is on the circumferencial direction in the center of circle.
Have the inclined-plane on the described struck side, when described dining chair from deployed condition to the process of folded state conversion, described inclined-plane is against on the described latch fitting.
The glide direction of described latch fitting is consistent with the rotational axis line direction of described shifting part.
The axle center that described first lockhole and described second lockhole lay respectively at described first rotating shaft is on the circumferencial direction in the center of circle.
Have the latch fitting guide groove on the described backrest seat, described first lockhole and described second lockhole lay respectively in the described latch fitting guide groove, and when described latch fitting is under the third state, described latch fitting is inserted in the described latch fitting guide groove.
Because technique scheme utilization, the present invention compared with prior art has following advantage: since described dining chair from deployed condition to the process of folded state conversion, described shifting part is against on the described latch fitting, until described latch fitting is converted to the third state from first state, this moment, dining chair still was in from deployed condition to the process of folded state conversion, described latch fitting slides on described backrest seat, in described latch fitting slips into described second lockhole, being described backrest has automatically entered folding optimum position in the dining chair deployed condition in the process of folded state conversion, easier when making described chair folds.
Description of drawings
Accompanying drawing 1 is the deployed condition schematic diagram of foldable dining chair;
Accompanying drawing 2 is the semi-collapsed condition schematic diagram one (dining chair in deployed condition in the process of folded state conversion) of foldable dining chair;
Accompanying drawing 4 is the A place enlarged drawing of accompanying drawing 1;
Accompanying drawing 5 is the B place enlarged drawing of accompanying drawing 2;
Accompanying drawing 6 is the C place enlarged drawing of accompanying drawing 3;
Accompanying drawing 7 is the partial sectional view at the latch fitting place of dining chair.
Wherein: 1, backrest; 2, backrest seat; 3, arm-rest frame; 4, first rotating shaft; 5, latch fitting; 6, first lockhole; 7, second lockhole; 8, chute; 9, struck side; 10, second rotating shaft; 11, guide post; 12, shifting part; 13, latch fitting guide groove; 14, latch fitting toggle mechanism; 15, pilot hole; 16, inclined-plane.
The specific embodiment
Shown in each accompanying drawing, a kind of backrest of foldable dining chair, comprise backrest seat 2, the backrest 1 that is connected with described backrest seat 2 phase pivots by first rotating shaft 4, the arm-rest frame 3 that rotates and be provided with the top of described backrest seat 2, the rotation placement of described arm-rest frame 3 and described backrest seat 2 is positioned at the top of first rotating shaft 4, be provided with latch fitting 5 slidably on the described backrest 1, at least have first lockhole 6 and second lockhole 7 on the described backrest seat 2, described latch fitting 5 has three states, when described latch fitting 5 is under first state, described latch fitting 5 is inserted in described first lockhole 6, when described latch fitting 5 is under second state, described latch fitting 5 is inserted in described second lockhole 7, at this moment, described backrest 1 is in folding optimum position, when described latch fitting 5 is under the third state, described latch fitting 5 and described first lockhole 6, described second lockhole 7 all is separated.
Be provided with latch fitting toggle mechanism 14 between described backrest seat 2 and the described arm-rest frame 3, described latch fitting toggle mechanism 14 comprises and is used to control the shifting part 12 that described latch fitting 5 slides with respect to backrest 1, described dining chair from deployed condition to the process of folded state conversion, described shifting part 12 is against on the described latch fitting 5, until making described latch fitting 5 be converted to the third state from first state.
Described latch fitting toggle mechanism 14 also comprises the chute 8 that is opened on the described backrest seat 2, described chute 8 is connected with described first lockhole 6, described shifting part 12 is provided with by second rotating shaft 10 rotatedly with described backrest seat 2, has struck side 9 on the described shifting part 12, described struck side 9 is that the circumferencial direction in the center of circle is inserted in the described chute 8 slidably along the center of rotation of described shifting part 12, when described dining chair from deployed condition to the process of folded state conversion, described struck side 9 is against on the described latch fitting 5, until making described latch fitting 5 be converted to the third state from first state.
Described shifting part 12 is slidingly arranged on the described arm-rest frame 3 along the fore-and-aft direction of described arm-rest frame 3.
Have guide post 11 on the described arm-rest frame 3, as shown in Figure 7, have pilot hole 15 on the described shifting part 12, described pilot hole 15 departs from the rotational axis line of described shifting part 12, and described guide post 11 is inserted in the described pilot hole 15 slidably.
The rotational axis line of described shifting part 12 is departed from described struck side 9, and described struck side 9 is positioned at the below of described guide post 11, and the center of rotation that described chute 8 is opened in described shifting part 12 is on the circumferencial direction in the center of circle.
As shown in Figure 7, have inclined-plane 16 on the described struck side 9, when described dining chair from deployed condition to the process of folded state conversion, described inclined-plane 16 is against on the described latch fitting 5.
The glide direction of described latch fitting 5 is consistent with the rotational axis line direction of described shifting part 12.
Described first lockhole 6 is on the circumferencial direction in the center of circle with the axle center that described second lockhole 7 lays respectively at described first rotating shaft 4.
Have latch fitting guide groove 13 on the described backrest seat 2, described first lockhole 6 lays respectively in the described latch fitting guide groove 13 with described second lockhole 7, when described latch fitting 5 is under the third state, described latch fitting 5 is inserted in the described latch fitting guide groove 13, if described dining chair is in from deployed condition to the process of folded state conversion, described latch fitting 5 slides in slipping into described second lockhole 7 along described latch fitting guide groove 13, and this moment, described backrest 1 was in folding preferred condition.
Shown in accompanying drawing 4-accompanying drawing 6, when described dining chair from deployed condition to the process of folded state conversion, described arm-rest frame 3 is that rotate in the axle center relative to described backrest seat 2 with described second rotating shaft 10, described shifting part 12 is that rotate in the axle center relative to described backrest seat 2 with described second rotating shaft 10 also, and relative slip between described arm-rest frame 3 and the described shifting part 12.
Claims (9)
1. the backrest of a foldable dining chair, comprise backrest seat (2), the backrest (1) that is connected with described backrest seat (2) phase pivot by first rotating shaft (4), the arm-rest frame (3) that rotates and be provided with the top of described backrest seat (2), the rotation placement of described arm-rest frame (3) and described backrest seat (2) is positioned at the top of first rotating shaft (4), be provided with latch fitting (5) on the described backrest (1) slidably, at least have first lockhole (6) and second lockhole (7) on the described backrest seat (2), described latch fitting (5) has three states, when described latch fitting (5) is under first state, described latch fitting (5) is inserted in described first lockhole (6), when described latch fitting (5) is under second state, described latch fitting (5) is inserted in described second lockhole (7), when described latch fitting (5) is under the third state, described latch fitting (5) and described first lockhole (6), described second lockhole (7) all is separated, it is characterized in that: be provided with latch fitting toggle mechanism (14) between described backrest seat (2) and the described arm-rest frame (3), described latch fitting toggle mechanism (14) comprises and is used to control the shifting part (12) that described latch fitting (5) slides with respect to backrest (1), described dining chair from deployed condition to the process of folded state conversion, described shifting part (12) is against on the described latch fitting (5), and described latch fitting (5) is converted to the third state from first state.
2. the backrest of foldable dining chair according to claim 1, it is characterized in that: described latch fitting toggle mechanism (14) also comprises the chute (8) that is opened on the described backrest seat (2), described chute (8) is connected with described first lockhole (6), described shifting part (12) is provided with rotatedly with described backrest seat (2), has struck side (9) on the described shifting part (12), described struck side (9) is that the circumferencial direction in the center of circle is inserted in the described chute (8) slidably along the center of rotation of described shifting part (12), when described dining chair from deployed condition to the process of folded state conversion, described struck side (9) is against on the described latch fitting (5), and described latch fitting (5) is converted to the third state from first state.
3. the backrest of foldable dining chair according to claim 2, it is characterized in that: described shifting part (12) is slidingly arranged on the described arm-rest frame (3) along the fore-and-aft direction of described arm-rest frame (3).
4. the backrest of foldable dining chair according to claim 3, it is characterized in that: have guide post (11) on the described arm-rest frame (3), have pilot hole (15) on the described shifting part (12), described pilot hole (15) departs from the rotational axis line of described shifting part (12), and described guide post (11) is inserted in the described pilot hole (15) slidably.
5. the backrest of foldable dining chair according to claim 2, it is characterized in that: described struck side (9) depart from the rotational axis line of described shifting part (12), and the center of rotation that described chute (8) is opened in described shifting part (12) is on the circumferencial direction in the center of circle.
6. the backrest of foldable dining chair according to claim 2, it is characterized in that: have inclined-plane (16) on described struck side (9), when described dining chair from deployed condition to the process of folded state conversion, described inclined-plane (16) are against on the described latch fitting (5).
7. the backrest of foldable dining chair according to claim 2, it is characterized in that: the glide direction of described latch fitting (5) is consistent with the rotational axis line direction of described shifting part (12).
8. the backrest of foldable dining chair according to claim 1 is characterized in that: described first lockhole (6) is on the circumferencial direction in the center of circle with the axle center that described second lockhole (7) lays respectively at described first rotating shaft (4).
9. the backrest of foldable dining chair according to claim 1, it is characterized in that: have latch fitting guide groove (13) on the described backrest seat (2), described first lockhole (6) lays respectively in the described latch fitting guide groove (13) with described second lockhole (7), when described latch fitting (5) is under the third state, described latch fitting (5) is inserted in the described latch fitting guide groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710025885.0A CN101361623A (en) | 2007-08-08 | 2007-08-08 | Backrest of foldable dining chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710025885.0A CN101361623A (en) | 2007-08-08 | 2007-08-08 | Backrest of foldable dining chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101361623A true CN101361623A (en) | 2009-02-11 |
Family
ID=40388376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710025885.0A Pending CN101361623A (en) | 2007-08-08 | 2007-08-08 | Backrest of foldable dining chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101361623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574211A (en) * | 2009-06-12 | 2009-11-11 | 好孩子儿童用品有限公司 | Folding dining chair for children |
| CN101797108A (en) * | 2010-04-02 | 2010-08-11 | 王而瑞 | Linked foldaway high chair |
-
2007
- 2007-08-08 CN CN200710025885.0A patent/CN101361623A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574211A (en) * | 2009-06-12 | 2009-11-11 | 好孩子儿童用品有限公司 | Folding dining chair for children |
| CN101574211B (en) * | 2009-06-12 | 2013-05-01 | 好孩子儿童用品有限公司 | Folding dining chair for children |
| CN101797108A (en) * | 2010-04-02 | 2010-08-11 | 王而瑞 | Linked foldaway high chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090211 |