CN113370862B - Armrest and locking mechanism for small lateral overturning table plate on armrest - Google Patents
Armrest and locking mechanism for small lateral overturning table plate on armrest Download PDFInfo
- Publication number
- CN113370862B CN113370862B CN202110634372.XA CN202110634372A CN113370862B CN 113370862 B CN113370862 B CN 113370862B CN 202110634372 A CN202110634372 A CN 202110634372A CN 113370862 B CN113370862 B CN 113370862B
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- plate
- toothed plate
- reversing
- use state
- toothed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/001—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays
-
- 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
- A47C7/62—Accessories for chairs
- A47C7/68—Arm-rest tables ; or back-rest tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/75—Arm-rests
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The application discloses a handrail and a locking mechanism for a small table plate capable of being overturned laterally on the handrail, and belongs to the technical field of auxiliary devices for automobiles and home furnishings; the central shaft is rotatably arranged on the fixed plate around the axis of the central shaft; the small table plate rotates to drive the central shaft to rotate, and the central shaft can drive the toothed plate reversing mechanism to switch between a first use state and a third use state; when the toothed plate reversing mechanism is in the first use state, the toothed plate reversing mechanism is limited by the pawl mechanism, so that the small table plate is kept in the use state; when the toothed plate reversing mechanism is in the third use state, the small table plate is kept in the storage state.
Description
Technical Field
The application relates to an armrest and a locking mechanism for a small table board capable of being overturned laterally on the armrest, and belongs to the technical field of auxiliary devices for automobiles and households.
Background
The armrests of the chair are arranged thinner due to the limitation of the space of the positions, and the comfort level of the user for putting hands on the armrests is weaker. In order to increase the comfort of the user, a small table plate which can be overturned sideways is arranged on the armrest. When needed, the small table plate is opened, the width of the armrests is increased, and then the comfort level of a user is improved. When not needed, the small table plate is retracted, so that the occupied space is avoided. The structural function of the existing flip tablet in the market can also realize the flip tablet to switch between the horizontal position and the vertical position. However, in the conventional structure, the unlocking button needs to be operated to disengage the mechanism therein, and then the side handrail is driven to turn over, which is troublesome in operation, high in cost and unfavorable for popularization and application, so that the locking mechanism for the side turning over small table plate on the handrail, which is simple in operation and low in cost, becomes an urgent need at present.
Disclosure of Invention
Aiming at the defects of the prior art, the application aims to provide a handrail and a locking mechanism for a small table plate capable of being overturned laterally on the handrail, which solve the problems in the prior art.
The application relates to a locking mechanism for a small table plate capable of being overturned laterally on an armrest, which comprises an armrest body and the small table plate, and is characterized in that: the locking mechanism comprises a fixed plate and a locking part, the fixed plate is fixedly connected with the armrest body, the locking part comprises a pawl mechanism and a toothed plate reversing mechanism, the pawl mechanism is arranged on the fixed plate, and the toothed plate reversing mechanism is connected with the small table plate through a central shaft; the central shaft is rotatably arranged on the fixed plate around the axis of the central shaft; the small table plate rotates to drive the central shaft to rotate, and the central shaft can drive the toothed plate reversing mechanism to switch between a first use state and a third use state; when the toothed plate reversing mechanism is in the first use state, the toothed plate reversing mechanism is limited by the pawl mechanism, so that the small table plate is kept in the use state; when the toothed plate reversing mechanism is in the third use state, the small table plate is kept in the storage state.
Further, the toothed plate reversing mechanism comprises a toothed plate and a reversing plate, the toothed plate is fixedly connected with the central shaft, and the reversing plate is rotatably sleeved on the central shaft; when the toothed plate reversing mechanism is in a third use state, the toothed plate can rotate along a first direction until the toothed plate is limited by the pawl mechanism to prevent the toothed plate from rotating, so that the toothed plate reversing mechanism is in the first use state; when the toothed plate reversing mechanism is in a first use state, the toothed plate can rotate along a first direction to drive the reversing plate to rotate along the first direction until the pawl mechanism is separated from the toothed plate and is abutted with the reversing plate; and then rotates in a direction opposite to the first direction until the toothed plate reversing mechanism is in a third use state.
Further, the toothed plate is provided with a boss, the reversing plate is provided with a waist-shaped groove matched with the boss, and when the boss on the toothed plate is contacted with the waist-shaped groove of the reversing plate, the toothed plate can drive the reversing plate to rotate together.
Furthermore, the toothed plate is provided with tooth grooves corresponding to the pawl mechanisms, and the teeth on the pawl mechanisms are clamped into the tooth grooves to limit the reversing mechanisms of the toothed plate. The function is that when the small table plate is turned up to the horizontal position, the pawl falls into the tooth slot, and the small table plate can be kept at the horizontal position and cannot be forced to move downwards. If the small table plate needs to be folded, the small table plate is folded clockwise and downwards only by turning up the small table plate to a certain angle.
Further, the pawl mechanism comprises a pawl and a fixed shaft connected with the pawl, the fixed shaft is connected to the fixed plate, and the pawl can rotate around the fixed shaft.
Further, a torsion spring is also connected between the pawl and the fixed plate.
Further, a travel limiting shaft is arranged outside the fixed plate, when the toothed plate reversing mechanism is in a first use state, the toothed plate can rotate along a first direction until the toothed plate is abutted against the travel limiting shaft, so that the toothed plate is prevented from continuously rotating along the first direction, and the pawl mechanism is separated from the toothed plate and abutted against the reversing plate; when the toothed plate reversing mechanism is in a third use state, the toothed plate is abutted with the travel limiting shaft so as to prevent the toothed plate from rotating in a direction opposite to the first direction.
Further, a damping gasket I, a damping gasket II and a fixing nut I are arranged at the fixed positions of the toothed plate and the reversing plate and the central shaft.
The armrest comprises an armrest body and a small table plate, and further comprises the locking mechanism.
Further, a side plate bolt and a side plate nut are connected to the lower portion of the small table plate. The small table plate is connected with the armrest body through the side plate bolts and the side plate nuts.
Compared with the prior art, the application has the following beneficial effects:
the application discloses a handrail and a locking mechanism for a small lateral overturning table plate on the handrail, wherein a pawl mechanism and a reversing design are used in the small lateral overturning table plate overturning mechanism of the handrail for the first time. The small table plate can be switched between the use state and the storage state only by turning over the small table plate, and the operation is simple. Solves the problems existing in the prior art.
Drawings
FIG. 1 is a diagram of the installation position of a locking mechanism in an embodiment of the present application;
FIG. 2 is an exploded view of the structure of the locking mechanism in an embodiment of the present application;
FIG. 3 is a first state diagram of the locking mechanism in accordance with an embodiment of the present application;
FIG. 4 is a second state diagram of the locking mechanism according to an embodiment of the present application;
FIG. 5 is a third state diagram of the locking mechanism according to an embodiment of the present application;
FIG. 6 is a schematic view of the relative positions of the armrest and the tablet when the locking mechanism is in a third use state in accordance with an embodiment of the present application;
fig. 7 is a schematic view of the tablet shown in fig. 1 in a use state and a storage state.
In the figure: 1. a small table plate; 2. a handrail body; 3. a locking mechanism; 4. a side plate nut; 5. a second fixing nut; 6. a central shaft; 7. a fixed shaft; 8. a fixing plate; 9. a pawl; 10. a toothed plate; 11. a torsion spring; 12. a reversing plate; 13. a stroke limiting shaft; 14. damping gaskets II; 15. damping gasket I; 16. a first fixing nut; 17. side plate bolts.
Detailed Description
The application is further illustrated by the following examples in conjunction with the accompanying drawings:
example 1:
as shown in fig. 1-6, a locking mechanism 3 for a side-to-side flip tablet on a armrest in accordance with the present application is shown. Wherein the armrest comprises an armrest body 2 and a small table board 1. The locking mechanism 3 comprises a fixed plate 8 and a locking part, wherein the fixed plate is fixedly connected with the armrest body 2, the locking part comprises a pawl mechanism and a toothed plate reversing mechanism, the pawl mechanism is arranged on the fixed plate, and the toothed plate reversing mechanism is connected with the small table plate 1 through a central shaft 6. The central shaft 6 is rotatably provided on the fixed plate around its own axis. The small table plate 1 rotates to drive the central shaft 6 to rotate, and the central shaft 6 rotates to drive the toothed plate reversing mechanism to switch between a first use state and a third use state; when the toothed plate reversing mechanism is in the first use state, the toothed plate reversing mechanism is limited by the pawl mechanism, so that the small table plate 1 is kept in the use state, and the small table plate is used in the first use state, see fig. 1 and 3; when the toothed plate reversing mechanism is in the third use state, the small table plate 1 is kept in the storage state, see fig. 5 and 6.
The toothed plate reversing mechanism comprises a toothed plate 10 and a reversing plate 12, wherein the toothed plate 10 is fixedly connected with the central shaft 6, and the reversing plate 12 is rotatably sleeved on the central shaft 6; when the toothed plate reversing mechanism is in the third use state, the toothed plate 10 can rotate along the first direction until the toothed plate 10 is limited by the pawl mechanism to prevent the toothed plate from rotating, so that the toothed plate reversing mechanism is in the first use state; when the toothed plate reversing mechanism is in the first use state, the toothed plate 10 can rotate along the first direction to drive the reversing plate 12 to rotate along the first direction until the pawl mechanism is separated from the toothed plate and is abutted against the reversing plate 12, as shown in fig. 4; and then rotates in a direction opposite to the first direction until the toothed plate reversing mechanism is in a third use state, see fig. 5. The first direction of the present application is the direction a shown in fig. 3.
The toothed plate 10 is provided with a boss, the reversing plate 12 is provided with a waist-shaped groove matched with the boss, and when the boss on the toothed plate 10 contacts with the waist-shaped groove of the reversing plate 12, the toothed plate 10 can drive the reversing plate 12 to rotate together.
The toothed plate 10 is provided with tooth grooves corresponding to the pawl mechanisms, and the teeth on the pawl mechanisms are clamped into the tooth grooves to limit the toothed plate reversing mechanism.
The pawl mechanism comprises a pawl 9 and a fixed shaft 7 connected with the pawl 9, the fixed shaft 7 is connected to the fixed plate, and the pawl 9 can rotate around the fixed shaft 7.
A torsion spring 11 is also connected between the pawl 9 and the fixed plate.
The outside of the fixed plate is provided with a travel limiting shaft 13, when the toothed plate reversing mechanism is in a first use state, the toothed plate 10 can rotate along a first direction until the toothed plate 10 is abutted with the travel limiting shaft 13, so that the toothed plate 10 is prevented from continuing to rotate along the first direction, and the pawl mechanism is separated from the toothed plate and abutted with the reversing plate 12; when the toothed plate reversing mechanism is in the third use state, the toothed plate 10 abuts against the travel limiting shaft 13, so that the toothed plate 10 is prevented from rotating in a direction opposite to the first direction.
The fixed positions of the toothed plate 10 and the reversing plate 12 and the central shaft 6 are provided with a first damping gasket 15, a second damping gasket 14 and a first fixing nut 16.
The working principle of the embodiment is as follows: the fixed plate 8 is fixed on the handrail body 2, the pawl 9 is installed on the fixed plate 8, the pinion rack 10 and the center pin 6 fixed connection, the center pin 6 is located to the rotatable cover of switching-over board 12, and little table 1 rotates and drives the center pin 6 rotation, and center pin 6 rotation can drive pinion rack switching-over mechanism and switch between first kind of service condition and third kind of service condition. The pawl 9 can rotate around the fixed shaft 7, the fixed nut II 5 is arranged on the central shaft 6, and the toothed plate 10 is limited by the pawl 9 when rotating unidirectionally. The pawl 9 will be tightly fitted against the reversing plate 12 by the force of the torsion spring 11. The stroke limiting shaft 13 can limit the rotation angle of the toothed plate 10. The reversing plate 12 may limit the engagement of the pawl 9 with the toothed plate 10.
In operation, as shown in fig. 3, the tablet 1 is in a horizontal position. The teeth of the pawl 9 rest in the tooth slots limiting movement of the tablet 1 in a direction opposite to the first direction.
As shown in fig. 4, the tablet 1 may be rotated upwardly and counterclockwise by a certain angle, i.e., in a first direction, until the travel limit shaft 13 is in contact limit with the toothed plate 10. The reversing plate 12 limits the teeth of the pawl 9 from falling into the tooth slots, the teeth are disengaged from the tooth slots, and the pawl 9 is propped against the reversing plate 12, i.e. in the second use state.
Further, when the small table plate 1 rotates clockwise again, the reversing plate 12 is contacted with the pawl 9 at first and is subject to friction force of the pawl 9, so that the reversing plate does not move along with the toothed plate 10, when the boss on the toothed plate 10 contacts with the kidney-shaped groove of the reversing plate 12, the toothed plate 10 can drive the reversing plate 12 to rotate together, and the reversing plate 12 limits teeth of the pawl 9 not to fall into tooth grooves, so that the toothed plate 10 can rotate clockwise to the retracted position of the small table plate 1, namely the position shown in fig. 5. The application uses the pawl mechanism and the reversing design in the side small table turnover mechanism of the handrail for the first time. The small table board 1 can be switched between the first use state and the third use state only by turning the small table board 1 clockwise or anticlockwise.
Example 2:
an armrest according to an embodiment of the present application includes an armrest body 2, a tablet 1, and a locking mechanism 3 shown in fig. 1 to 6.
A side plate bolt 17 and a side plate nut 4 are connected below the armrest body 2. The small table plate 1 is connected with the armrest body 2 through a side plate bolt 17 and a side plate nut 14.
Fig. 7 is a schematic view of the structure of the tablet in the use state and the storage state. Wherein 1a is a schematic structural view of the small desk board in a use state. Reference numeral 1b denotes a schematic view (indicated by a broken line) of the structure of the tablet in the housed state.
Alternatively, in one possible embodiment, the tablet may be bent along at least one line parallel to the direction of extension of the armrest body, such that the tablet in use is wrapped directly around the armrest body, or such that the free edge of the tablet in use is tilted or depressed. And then under the condition that the small table plate is not required to be overturned to a storage state, the size of the space occupied by the small table plate in the horizontal direction can be reduced.
The working principle of the embodiment is as follows: the application designs a handrail, and a pawl mechanism and a reversing mechanism are designed to be used in a lateral small table plate turnover mechanism of the handrail for the first time. The small table plate can be switched between the use state and the storage state only by turning over the small table plate, and the operation is simple. Solves the problems existing in the prior art.
The armrest and the locking mechanism for the small table plate laterally turned on the armrest can fix the small table plate on the side surface of the armrest, rotate to a horizontal state for placing articles or offices when needed, rotate to a vertical state at ordinary times, and save space. The application uses the pawl mechanism and the reversing design in the side small table turnover mechanism of the handrail for the first time. The locking and unlocking of the small table plate can be realized only by turning the small table plate clockwise or anticlockwise. Solves the problems existing in the prior art. The present application is not limited to the embodiments described, but is capable of modification, alteration, replacement and variation in embodiments without departing from the spirit and scope of the present application.
Claims (6)
1. A locking mechanism for side direction upset little table on handrail, handrail include handrail body (2) and little table (1), its characterized in that: the locking mechanism (3) comprises a fixed plate (8) and a locking part, the fixed plate (8) is fixedly connected with the handrail body (2), the locking part comprises a pawl mechanism and a toothed plate reversing mechanism, the pawl mechanism is arranged on the fixed plate, and the toothed plate reversing mechanism is connected with the small table plate (1) through a central shaft (6); the central shaft (6) can be rotatably arranged on the fixed plate around the axis of the central shaft; the small table plate (1) rotates to drive the central shaft (6) to rotate, and the central shaft (6) rotates to drive the toothed plate reversing mechanism to switch between a first use state and a third use state; when the toothed plate reversing mechanism is in the first use state, the toothed plate reversing mechanism is limited by the pawl mechanism, so that the small table (1) is kept in the use state; when the toothed plate reversing mechanism is in a third use state, the small table plate (1) is kept in a storage state;
the toothed plate reversing mechanism comprises a toothed plate (10) and a reversing plate (12), wherein the toothed plate (10) is fixedly connected with the central shaft (6), and the reversing plate (12) is rotatably sleeved on the central shaft (6); when the toothed plate reversing mechanism is in a third use state, the toothed plate (10) can rotate along a first direction until the toothed plate (10) is limited by the pawl mechanism to prevent the toothed plate from rotating, so that the toothed plate reversing mechanism is in the first use state; when the toothed plate reversing mechanism is in a first use state, the toothed plate (10) can rotate along a first direction to drive the reversing plate (12) to rotate along the first direction until the pawl mechanism is separated from the toothed plate and is abutted against the reversing plate (12); then rotating along the direction opposite to the first direction until the toothed plate reversing mechanism is in a third use state;
the toothed plate (10) is provided with a boss, the reversing plate (12) is provided with a kidney-shaped groove matched with the boss, and when the boss on the toothed plate (10) is contacted with the kidney-shaped groove of the reversing plate (12), the toothed plate (10) can drive the reversing plate (12) to rotate together;
the toothed plate (10) comprises a central disc, an annular protruding part is arranged on the central disc in the circumferential direction, two tooth grooves corresponding to the pawl mechanism are arranged on the annular protruding part, and teeth on the pawl mechanism are clamped into the tooth grooves to limit the toothed plate reversing mechanism;
the outside of the fixed plate is provided with a travel limiting shaft (13), when the toothed plate reversing mechanism is in a first use state, the toothed plate (10) can rotate along a first direction until one end of the annular protruding part is abutted against the travel limiting shaft (13) so as to prevent the toothed plate (10) from continuing to rotate along the first direction, and the pawl mechanism is separated from the toothed plate and abutted against the reversing plate (12); when the toothed plate reversing mechanism is in a third use state, the other end of the annular protruding portion is abutted against the travel limiting shaft (13) so as to prevent the toothed plate (10) from rotating in the direction opposite to the first direction.
2. A locking mechanism for a side-tipping table top on an armrest as defined in claim 1, wherein: the pawl mechanism comprises a pawl (9) and a fixed shaft (7) connected with the pawl mechanism, the fixed shaft (7) is connected to the fixed plate (8), and the pawl (9) can rotate around the fixed shaft (7).
3. A locking mechanism for a side-tipping table top on an armrest as defined in claim 2, wherein: a torsion spring (11) is also connected between the pawl (9) and the fixed plate.
4. A locking mechanism for a side-tipping table top on an armrest as defined in claim 1, wherein: the gear plate (10) and the reversing plate (12) are provided with a first damping gasket (15), a second damping gasket (14) and a first fixing nut (16) at the fixed positions of the central shaft (6).
5. The utility model provides an armrest, includes armrest body (2) and little table (1), its characterized in that: the armrest further comprising a locking mechanism as recited in any one of claims 1-4.
6. The handrail as claimed in claim 5, wherein: the lower part of the small table plate (1) is connected with a side plate bolt (17) and a side plate nut (4), and the small table plate (1) is connected with the armrest body (2) through the side plate bolt (17) and the side plate nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634372.XA CN113370862B (en) | 2021-06-07 | 2021-06-07 | Armrest and locking mechanism for small lateral overturning table plate on armrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110634372.XA CN113370862B (en) | 2021-06-07 | 2021-06-07 | Armrest and locking mechanism for small lateral overturning table plate on armrest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113370862A CN113370862A (en) | 2021-09-10 |
| CN113370862B true CN113370862B (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110634372.XA Active CN113370862B (en) | 2021-06-07 | 2021-06-07 | Armrest and locking mechanism for small lateral overturning table plate on armrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113370862B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115257488B (en) * | 2022-08-08 | 2023-11-17 | 明阳科技（苏州）股份有限公司 | Armrest adjusting device of seat of one-way locking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009926A (en) * | 2017-05-18 | 2017-08-04 | 延锋安道拓（烟台）座椅有限公司 | The side handrail structure with turning-over support plate for automotive seat |
| CN109760571A (en) * | 2019-01-29 | 2019-05-17 | 广汽零部件有限公司 | A kind of multistage angle location adjusting device and motor vehicle seat back desktop |
| CN110509825A (en) * | 2019-09-23 | 2019-11-29 | 日照鸿日新能源汽车有限公司 | A kind of mostly limit automobile seat arm box structure and its application method |
| EP3590759A1 (en) * | 2018-07-03 | 2020-01-08 | SNCF Mobilités | Passenger seat of a transport vehicle and transport vehicle equipped with such seats |
| CN209972249U (en) * | 2019-05-17 | 2020-01-21 | 上汽通用汽车有限公司 | Seat armrest and automobile |
-
2021
- 2021-06-07 CN CN202110634372.XA patent/CN113370862B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009926A (en) * | 2017-05-18 | 2017-08-04 | 延锋安道拓（烟台）座椅有限公司 | The side handrail structure with turning-over support plate for automotive seat |
| EP3590759A1 (en) * | 2018-07-03 | 2020-01-08 | SNCF Mobilités | Passenger seat of a transport vehicle and transport vehicle equipped with such seats |
| CN109760571A (en) * | 2019-01-29 | 2019-05-17 | 广汽零部件有限公司 | A kind of multistage angle location adjusting device and motor vehicle seat back desktop |
| CN209972249U (en) * | 2019-05-17 | 2020-01-21 | 上汽通用汽车有限公司 | Seat armrest and automobile |
| CN110509825A (en) * | 2019-09-23 | 2019-11-29 | 日照鸿日新能源汽车有限公司 | A kind of mostly limit automobile seat arm box structure and its application method |
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| Publication number | Publication date |
|---|---|
| CN113370862A (en) | 2021-09-10 |
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