CN115177113A - Seat support and seat unit - Google Patents
Seat support and seat unit Download PDFInfo
- Publication number
- CN115177113A CN115177113A CN202210982518.4A CN202210982518A CN115177113A CN 115177113 A CN115177113 A CN 115177113A CN 202210982518 A CN202210982518 A CN 202210982518A CN 115177113 A CN115177113 A CN 115177113A
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- China
- Prior art keywords
- extension
- footrest
- connecting rod
- link
- seat support
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- 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
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- 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
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
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- 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
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/58—Hinges, e.g. for mounting chairs in a curved row
Abstract
The invention provides a seat support and a seat unit, wherein the seat support comprises an intermediate transmission component and an extension component arranged on the intermediate transmission component, and the extension component comprises: an extension structure hinged to the intermediate transmission assembly; a first transition link hinged to the extension structure; the limiting piece is fixed at the relative position of the limiting piece and the first transition connecting rod in the posture adjusting process of the stretching assembly; a first leg rest mounted to the first transition link; and the elastic piece acts on the first leg rest piece, so that the first leg rest piece always has the movement trend of being abutted to the limiting piece. According to the invention, through the structural design that the first footrest is matched with the elastic piece, in the process of storage between seats, when the first footrest is abutted to an obstacle, the elastic piece extends to buffer the first footrest, so that the first footrest is prevented from being in rigid contact with the obstacle, the risk of the obstacle being pinched is reduced, and meanwhile, the first footrest is prevented from being damaged by the obstacle.
Description
Technical Field
The invention relates to the technical field of seat supports, in particular to a seat support and a seat unit.
Background
The functional seat can meet the use requirements of different positions of a user through posture adjustment, wherein the lying position can reduce fatigue of the user to the maximum extent, so that the seat has the function of a bed.
Chinese patent publication No. CN214230641U discloses a leg mechanism and a sofa extension device, in which a footrest assembly provided by the patent is specifically a first footrest structure fixed to a first footrest member, and when the solution is used, specifically in a process of converting from an extended state to a contracted state, once an obstacle (a user himself or a person or an object other than the user) exists on a movement path of the first footrest, the obstacle may be injured by being pinched, and in the contracted state, it is relatively difficult for the user to take out the obstacle, and the safety is insufficient.
Disclosure of Invention
In view of the shortcomings of the prior art, the present invention provides a seat support, wherein when the first footrest is blocked during the storage process, the elastic member can be stretched, so as to reduce the risk of the first footrest pinching the obstacle in the path.
Another object of the present invention is to provide a seat unit that can prevent an obstacle between a first footrest and a floor armrest from being pinched, and at the same time, when the seat unit is in a stowed state, the obstacle pinched between the first footrest and the floor armrest can be easily taken out by a user.
The embodiment of the invention is realized by the following technical scheme:
a seat support includes an intermediate drive assembly and an extension assembly mounted to the intermediate drive assembly,
the extension assembly includes:
an extension structure hinged to the intermediate transmission assembly;
a first transition link hinged to the extension structure;
the limiting piece is fixed with the relative position of the first transition connecting rod in the posture adjustment process of the extension assembly;
a first leg rest mounted to the first transition link; and
the elastic piece acts on the first leg rest piece, so that the first leg rest piece always has the movement trend of being abutted to the limiting piece.
According to a preferred embodiment, the limiting member is disposed on the first transition link.
According to a preferred embodiment, the elastic element is arranged between the first foot rest and the first transition link.
According to a preferred embodiment, a first extension plate is arranged on the first transition connecting rod, and a second extension plate is arranged on the first foot rest; one end of the elastic member is connected to the first extension plate, and a second end of the elastic member is connected to the second extension plate.
According to a preferred embodiment, the elastic member is a tension spring.
According to a preferred embodiment, the first leg rest is provided with a limiting plate matched with the limiting member.
According to a preferred embodiment, a second foot rest is articulated on the first transition link, a second transition link being provided between the second foot rest and the extension structure, wherein: one end of the second transition connecting rod is hinged to the second foot rest, and the other end of the second transition connecting rod is hinged to the extension structure.
According to a preferred embodiment, the device further comprises a driving member mounted on the intermediate transmission assembly and used for driving the extension assembly to be converted between the extension state and the storage state; a first limiting bulge is arranged on the extension structure, and a limiting notch matched with the first limiting bulge is arranged on the second leg placing piece; when the extension assembly is in the storage state, the limiting notch is clamped to the first limiting protrusion.
According to a preferred embodiment, the extension structure comprises:
a first drive link and a second drive link, both hinged to the intermediate transmission assembly;
a first extension link and a second extension link, both hingedly connected to the first transition link; wherein: the first extending connecting rod is hinged to the first driving connecting rod and hinged to the second driving connecting rod; the second extending connecting rod is hinged to the second driving connecting rod; and defining the hinge points between the second driving connecting rod and the intermediate transmission assembly as well as between the first extending connecting rod and the second extending connecting rod as a first hinge point, a second hinge point and a third hinge point respectively, wherein the second hinge point is positioned between the first hinge point and the third hinge point.
According to a preferred embodiment, a second limiting protrusion is arranged on the first extending connecting rod, and an extending gap and a containing gap matched with the second limiting protrusion are arranged on the second driving connecting rod; defining a hinge point of the first extension connecting rod and the first driving connecting rod as a fourth hinge point, and defining a hinge point of the first extension connecting rod and the first transition connecting rod as a fifth hinge point; the second hinge point is positioned between the fourth hinge point and the fifth hinge point, and the second limiting bulge is positioned between the second hinge point and the fourth hinge point; when the stretching assembly is in the stretching state, the second limit bulge is clamped into the stretching notch; when the extension assembly is in the accommodating state, the second limiting protrusion is clamped into the accommodating notch.
According to a preferred embodiment, the elastic member is a torsion spring; the first leg placing piece is hinged to the first transition connecting rod through a pin shaft, the elastic piece is sleeved outside the pin shaft, one end of the elastic piece is installed to the first leg placing piece, and the other end of the elastic piece is installed to the first transition connecting rod.
A seat unit comprising a floor armrest and a seat support as described above, wherein: the intermediate transmission assembly is mounted to the floor armrest; a first footrest is arranged on the first footrest piece; when the extension assembly is converted into the storage state from the extension state, and when the first footrest receives an external force from the floor armrest to the first footrest direction, the elastic member can be stretched, so that the first footrest member is separated from the limiting member.
According to a preferred embodiment, the first footrest is mounted on a mounting surface of the first foot rest, the first footrest having a width greater than a width of the first foot rest; the width direction of the first footrest is parallel to the width direction of the mounting surface of the first footrest member.
According to a preferred embodiment, the width of the mounting surface of the first footrest is less than or equal to 100mm, and the width of the first footrest is between 110mm and 130mm.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the seat support, the first footrest is matched with the elastic piece, so that in the process of storage between seats, when the first footrest abuts against an obstacle, the elastic piece stretches to buffer the first footrest, rigid contact between the first footrest and the obstacle is avoided, the risk that the obstacle between the first footrest and the seat frame is damaged by clamping is reduced, meanwhile, the first footrest is prevented from being damaged by the obstacle, and the service life of the seat support can be prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic perspective view of an extension assembly provided in embodiment 1 of the present invention in an extended state;
fig. 2 is a schematic front view of the stretching assembly provided in embodiment 1 of the present invention in a half-stretched state;
fig. 3 is a front view schematically illustrating a seat support according to embodiment 1 of the present invention in an extended state;
fig. 4 is a front view schematically illustrating a seat support according to embodiment 1 of the present invention in a half-extended state;
fig. 5 is a schematic front view of a seat holder according to embodiment 1 of the present invention in a retracted state;
fig. 6 is a schematic front view of a seat support provided in embodiment 1 of the present invention in a retracted state and when a first footrest is acted on by an external force;
fig. 7 is a schematic perspective view of a seat support provided in embodiment 1 of the present invention in a retracted state and when a first footrest is acted on by an external force;
fig. 8 is a rear view schematically showing the structure of a seat support according to embodiment 1 of the present invention in an extended state;
fig. 9 is a schematic perspective view of a seat unit provided in embodiment 1 of the present invention;
fig. 10 is a front view structural schematic diagram of a seat support provided in embodiment 2 of the present invention in a retracted state and when a first footrest is acted by an external force.
An icon: 1. an extension assembly; 101. a fourth hinge point; 102. a second hinge point; 103. a third hinge point; 104. a first hinge point; 105. a fifth hinge point; 106. a sixth hinge point; 107. a seventh hinge point; 11. a first drive link; 12. a second drive link; 121. stretching the notch; 122. a storage notch; 13. a second extension link; 131. a first limit projection; 14. a first extension link; 141. a second limit bulge; 15. a first transition link; 151. a first extension plate; 152. a limiting member; 16. a second transition link; 17. a second leg rest; 171. a limiting notch; 18. a first footrest member; 181. a second extension plate; 182. a first footrest; 183. a limiting plate; 19. an elastic member; 2. an intermediate transmission assembly; 21. a seat frame; 3. floor armrest.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
Referring to fig. 1 to 9, a seat support comprises an intermediate transmission assembly 2 and a stretching assembly 1 mounted on the intermediate transmission assembly 2, wherein the stretching assembly 1 comprises a stretching structure, a first transition link 15, a first leg rest 18 and an elastic member 19, in this embodiment, the intermediate transmission assembly 2 comprises a seat frame 21, and one end of the stretching structure is hinged to the seat frame 21; the first transition connecting rod 15 is hinged to the other end of the extending structure, a limiting member 152 matched with the first leg rest member 18 is arranged on the first transition connecting rod 15, and the relative position of the limiting member 152 and the first transition connecting rod 15 is fixed in the posture adjusting process of the extending assembly 1; the first leg rest 18 is articulated to the first transition link 15; the elastic member 19 is disposed between the first leg rest 18 and the first transition link 15, and acts on the first leg rest 18, so that the first leg rest 18 always has a movement tendency of abutting against the limiting member 152. In this embodiment, the limiting member 152 is preferably integrally formed with the first transition link 15, and is a side surface of the first transition link 15 facing the first foot rest 18. When the seat support provided by the embodiment is used, the seat frame 21 is used for bearing the weight of the upper part of the body of the user, and the extension assembly 1 is used for bearing the weight of the lower part (leg) of the body of the user, specifically, as shown in fig. 1, 3 and 7, the extension assembly 1 is in an extension state, that is, the seat support is in an extension state, at this time, the first leg rest member 18 is lifted upwards to a certain height, so that the leg of the user is lifted, so that the user is in a lying posture, and the purpose of relaxing the leg is achieved; as shown in fig. 5, the extension assembly 1 is in a retracted state, that is, the seat support is in a retracted state, at this time, the user is in a sitting posture, and the extension assembly 1 is retracted at a lower side position of the seat frame 21, so that space is saved; as shown in fig. 3 to 5, the seat frame is in an extended state, a half-extended state and a retracted state, and when there is an obstacle between the first footrest 182 and the seat frame 21, the obstacle is clamped between the first footrest 182 and the seat frame 21 when the seat frame is in the retracted state, and the user only needs to drive the first footrest 182 to apply a force away from the seat frame 21 to remove the obstacle, specifically as shown in fig. 6, the elastic member 19 is stretched during the process, and when the obstacle is removed, the force applied to the first footrest 182 is removed, and the first footrest 182 is reset by the elastic member 19 to maintain the state shown in fig. 5; in addition, the first footrest 182 is matched with the structural design of the elastic piece 19, so that in the process of storage between seats, when the first footrest 182 abuts against an obstacle, the elastic piece 19 extends to buffer the first footrest 182, rigid contact between the first footrest 182 and the obstacle is avoided, the risk that the obstacle between the first footrest 182 and the seat frame 21 is clamped and damaged is reduced, meanwhile, the first footrest 182 is prevented from being damaged by the obstacle, and the service life of the seat support can be prolonged.
Further, as shown in fig. 1 and fig. 2, a first extending plate 151 is disposed on the first transition link 15, and a second extending plate 181 is disposed on the first footrest 18; one end of the elastic member 19 is connected to the first extension plate 151, and the second end of the elastic member 19 is connected to the second extension plate 181. In this embodiment, it is preferable that the first transition link 15 and the first extension plate 151 are integrally formed, and the first footrest 18 and the second extension plate 181 are integrally formed. Further, in the present embodiment, the elastic member 19 is a tension spring. Preferably, the first extension plate 151 and the second extension plate 181 are both provided with a hanging hole, and when the device is used, the elastic element 19, i.e., a first end of the tension spring, is hung in the hanging hole of the first extension plate 151, and a second end of the tension spring is hung in the hanging hole of the second extension plate 181. In this embodiment, the first footrest 182 is hinged to the first transition connecting plate through a pin, and the hinge point is a sixth hinge point 106. In use, the first footrest 182 rotates about the sixth hinge point 106 to allow the first footrest 182 to abut against or disengage from the stop 152.
In other embodiments, the first leg rest 18 can be mounted to the first transition link 15 by two tension springs, under which the first leg rest 18 abuts against the limiting member 152, and when the first leg rest 18 is subjected to an external force (a force opposite to the movement direction of the first leg rest 18 during the seat support stowing process), the first leg rest 18 is completely separated from the limiting member 152 in the form of stretching the two tension springs.
In another embodiment, the first leg rest 18 and the first transition link 15 are slidably connected by a resilient member 19, and the slidable connection may be any linear slidable connection. In this embodiment, the first leg rest 18 is provided with a limiting plate 183 engaged with the limiting member 152. In this embodiment, the limiting plate 183 and the first leg rest 18 are integrally formed. The inner side surfaces of the limiting member 152 and the limiting member 183 are working surfaces, and the shape of the working surfaces is matched with that of the limiting member 152, so that the two have large contact area when being abutted, and the stability is high.
In this embodiment, there is second footrest spare 17 articulated through the round pin axle on the first transition connecting rod 15, and the pin joint is seventh hinge point 107, is provided with second transition connecting rod 16 between second footrest spare 17 and the extending structure, wherein: a second transition link 16 is hingedly connected at one end to a second leg rest 17 and at the other end to the extension structure. The second leg rest 17 is matched with the first leg rest 18 to increase the bearing area when the seat support is in the stretching state, so that a larger supporting area can be provided for the legs or the feet of a user, and the comfort degree of the user in use can be effectively improved. As shown in fig. 1 and 2, the extending structure can drive second leg rest 17 to rotate around seventh hinge point 107 via second transition link 16, so as to extend and retract second leg rest 17. In this embodiment, the extending structure is provided with a first limiting protrusion 131, and the second leg rest 17 is provided with a limiting notch 171 matched with the first limiting protrusion 131; when the stretching assembly 1 is in the storage state, the limiting notch 171 is clamped to the first limiting protrusion 131. In this embodiment, when the seat frame is in the extended state, the upper end surface of the second leg rest 17 and the upper end surface of the first leg rest 18 are substantially parallel and substantially on the same plane.
In this embodiment, a driving member (not shown) is disposed on the intermediate transmission assembly 2 for driving the extension assembly 1 to switch between the extension state and the storage state. Specifically, as shown in fig. 1 to 3, the extension structure includes a first drive link 11, a second drive link 12, a first extension link 14, and a second extension link 13; the first driving connecting rod 11 and the second driving connecting rod 12 are hinged to the seat frame 21; the first extension link 14 and the second extension link 13 are both hinged to a first transition link 15; wherein: the first extension connecting rod 14 is hinged to the first driving connecting rod 11 and is hinged to the second driving connecting rod 12; the second extension connecting rod 13 is hinged to the second driving connecting rod 12; the hinge points between the second driving link 12 and the seat frame 21, the first extension link 14 and the second extension link 13 are defined as a first hinge point 104, a second hinge point 102 and a third hinge point 103, respectively, and the second hinge point 102 is located between the first hinge point 104 and the third hinge point 103. In this embodiment, the seat frame 21 forms a planar four-bar mechanism among the first driving link 11, the second driving link 12, and the first extension link 14, and forms a planar four-bar mechanism among the first extension link 14, the second extension link 13, the second driving link 12, and the first transition link 15. When the leg rest is used, the driving piece drives the first driving connecting rod 11 or the second driving connecting rod 12, the driving connecting rods rotate around the hinged points of the driving connecting rods and the seat frame 21, so that the transition connecting rods are driven to move through the extending connecting rods, and the leg rest is driven to move.
In this embodiment, the driving member may be an electric push rod.
Further, a second limit protrusion 141 is arranged on the first extension connecting rod 14; defining a hinge point of the first extension connecting rod 14 and the first driving connecting rod 11 as a fourth hinge point 101, and defining a hinge point of the first extension connecting rod 14 and the first transition connecting rod 15 as a fifth hinge point 105; the second hinge point 102 is located between the fourth hinge point 101 and the fifth hinge point 105, and the second stopper protrusion 141 is located between the second hinge point 102 and the fourth hinge point 101. In this embodiment, the second driving link 12 is provided with an extending notch 121 and a receiving notch 122 for matching with the second limiting protrusion 141. Specifically, when the extension assembly 1, that is, the seat support, is in the extended state, the second limiting protrusion 141 is clamped into the extension notch 121 to limit the second driving link 12; when the extension assembly 1, i.e. the seat support, is in the retracted state, the second limiting protrusion 141 is snapped into the receiving notch 122 to limit the second driving link 12.
It should be noted that in other embodiments, the elastic member 19 can also be disposed between the first leg rest 18 and the first extension link 14, and the elastic member 19 is disposed outside the first extension link 14. Of course, the arrangement of the elastic member 19 is not limited to this, and it is only necessary that the installed elastic member 19 acts on the first leg rest 18, and the first leg rest 18 can be attached to the limiting member 152, and when the first leg rest 18 receives an acting force opposite to the moving direction of the first leg rest 18 during the process of the seat frame being converted from the extending state to the receiving state, the first leg rest 18 can stretch the elastic member 19 and disengage from the limiting member 152. The present embodiment also provides a seat unit using the seat support described above, and specifically as shown in fig. 9, the seat unit includes a floor armrest 3 and the seat support described above, wherein: the intermediate transmission assembly 2 is mounted on the floor armrest 3; a first footrest 182 is arranged on the first footrest 18; when the extension assembly 1 is converted from the extended state to the retracted state, and the first footrest 182 receives an external force from the floor armrest 3 to the first footrest 182, the elastic element 19 can be stretched, so that the first footrest 18 is separated from the limiting element 152. In this embodiment, the first footrest 182 is mounted on the first footrest 18, and the seat support is located on the floor armrest 3 side. When the seat support is in the storage state, the first footrest 182 abuts against or abuts against the floor armrest 3, if an obstacle exists between the first footrest 182 and the floor armrest 3 in the process, the obstacle is clamped between the first footrest 182 and the floor armrest 3, and meanwhile, the obstacle can apply acting force to the first footrest 182 or the first footrest 18 to enable the elastic piece 19 to be elongated, so that the obstacle is prevented from being damaged, and the obstacle is convenient for a user to withdraw.
In this embodiment, the first footrest 182 is mounted on the mounting surface of the first footrest 18, and the width of the first footrest 182 is greater than the width of the first footrest 18; the width direction of the first footrest 182 is parallel to the width direction of the mounting surface of the first footrest 18. In the present embodiment, the width of the attachment surface of the first footrest 18 is 100mm, and the width of the first footrest 182 is 120mm, so that the first footrest 182 can shield the first footrest in front of the seat in the stowed state, thereby maintaining the aesthetic appearance of the seat unit.
Example 2
As shown in fig. 10, in the present embodiment, the elastic member 19 is a torsion spring; the first leg rest 18 is hinged to the first transition connecting rod 15 through a pin, the elastic member 19 is sleeved outside the pin, one end of the elastic member 19 is mounted to the first leg rest 18, and the other end of the elastic member is mounted to the first transition connecting rod 15.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (14)
1. A seat support comprising an intermediate drive assembly (2) and an extension assembly (1) mounted to the intermediate drive assembly (2), wherein the extension assembly (1) comprises:
an extension structure hinged to the intermediate transmission assembly (2);
a first transition link (15) articulated to the extension structure;
the limiting piece (152) is used for fixing the relative position of the limiting piece (152) and the first transition connecting rod (15) in the posture adjustment process of the extension assembly (1);
a first leg rest (18) mounted to the first transition link (15); and
and the elastic piece (19) acts on the first foot rest (18) so that the first foot rest (18) always has a movement trend of abutting against the limiting piece (152).
2. The seat support according to claim 1, characterized in that the stop (152) is provided to the first transition link (15).
3. Seat support according to claim 1, characterized in that the elastic element (19) is arranged between the first footrest (18) and the first transition link (15).
4. Seat support according to claim 3, characterized in that a first extension plate (151) is provided on the first transition link (15) and a second extension plate (181) is provided on the first foot rest (18);
one end of the elastic member (19) is connected to the first extension plate (151), and a second end of the elastic member (19) is connected to the second extension plate (181).
5. Seat support according to claim 4, characterized in that the elastic element (19) is a tension spring.
6. The seat support according to claim 1, characterized in that a limit plate (183) cooperating with the limit piece (152) is provided on the first leg rest (18).
7. Seat support according to claim 1, characterized in that a second foot rest (17) is hinged on said first transition link (15), a second transition link (16) being provided between said second foot rest (17) and said extension structure, wherein:
the second transition link (16) is hinged at one end to the second foot rest (17) and at the other end to the extension structure.
8. The seat support according to claim 7, further comprising an actuating member mounted to the intermediate transmission assembly (2) for actuating the extension assembly (1) between the extended condition and the stowed condition;
a first limiting bulge (131) is arranged on the extending structure, and a limiting notch (171) matched with the first limiting bulge (131) is arranged on the second leg rest (17);
when the extension assembly (1) is in a storage state, the limiting notch (171) is clamped to the first limiting protrusion (131).
9. The seat support of claim 8, wherein the extension structure comprises:
a first drive link (11) and a second drive link (12), both hinged to the intermediate transmission assembly (2);
a first extension link (14) and a second extension link (13), both articulated to the first transition link (15); wherein:
the first extension connecting rod (14) is hinged to the first driving connecting rod (11) and hinged to the second driving connecting rod (12);
a second extension link (13) is hinged to the second drive link (12);
the hinge points between the second driving connecting rod (12) and the intermediate transmission assembly (2) and between the first extending connecting rod (14) and the second extending connecting rod (13) are respectively defined as a first hinge point (104), a second hinge point (102) and a third hinge point (103), and the second hinge point (102) is positioned between the first hinge point (104) and the third hinge point (103).
10. The seat support according to claim 9, characterized in that the first extension link (14) is provided with a second limit protrusion (141), and the second drive link (12) is provided with an extension notch (121) and a storage notch (122) adapted to the second limit protrusion (141);
defining a hinged point of the first extension connecting rod (14) and the first driving connecting rod (11) as a fourth hinged point (101), and defining a hinged point of the first extension connecting rod (14) and the first transition connecting rod (15) as a fifth hinged point (105);
the second hinge point (102) is between the fourth hinge point (101) and the fifth hinge point (105), and the second stopper protrusion (141) is between the second hinge point (102) and the fourth hinge point (101);
when the extension assembly (1) is in the extension state, the second limiting protrusion (141) is clamped into the extension notch (121); when the extension assembly (1) is in the storage state, the second limiting protrusion (141) is clamped into the storage notch (122).
11. Seat support according to claim 1, characterized in that said elastic member (19) is a torsion spring;
first put foot spare (18) with first transition connecting rod (15) are articulated through the round pin axle, elastic component (19) cover is located outside the round pin axle, and the one end of elastic component (19) install extremely first put foot spare (18), the other end install extremely first transition connecting rod (15).
12. A seat unit, comprising a floor standing armrest (3) and a seat support according to any of claims 1-11, wherein:
the intermediate transmission assembly (2) is mounted to the floor armrest (3);
a first footrest (182) is arranged on the first footrest piece (18);
when the extension assembly (1) is converted from the extension state to the storage state and the first footrest (182) is subjected to an external force in the direction from the floor armrest (3) to the first footrest (182), the elastic member (19) can be stretched, so that the first footrest member (18) is separated from the stopper member (152).
13. The seating unit of claim 12, wherein the first footrest (182) is mounted on a mounting surface of the first leg rest (18), the first footrest (182) having a width greater than a width of the first leg rest (18);
the width direction of the first footrest (182) is parallel to the width direction of the mounting surface of the first footrest member (18).
14. The seating unit of claim 13, wherein the width of the mounting surface of the first footrest member (18) is equal to or less than 100mm, and the width of the first footrest (182) is between 110mm and 130mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982518.4A CN115177113A (en) | 2022-08-16 | 2022-08-16 | Seat support and seat unit |
| PCT/CN2023/108671 WO2024037282A1 (en) | 2022-08-16 | 2023-07-21 | Seat bracket and seat unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982518.4A CN115177113A (en) | 2022-08-16 | 2022-08-16 | Seat support and seat unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115177113A true CN115177113A (en) | 2022-10-14 |
Family
ID=83522830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210982518.4A Pending CN115177113A (en) | 2022-08-16 | 2022-08-16 | Seat support and seat unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115177113A (en) |
| WO (1) | WO2024037282A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024037282A1 (en) * | 2022-08-16 | 2024-02-22 | 锐迈科技股份有限公司 | Seat bracket and seat unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3662329B2 (en) * | 1996-01-31 | 2005-06-22 | デルタ工業株式会社 | Chair footrest structure |
| CN112741443A (en) * | 2021-01-28 | 2021-05-04 | 惠州市睿普斯林智能科技有限公司 | Sofa frame structure and sofa with prevent pressing from both sides function |
| CN216797048U (en) * | 2021-08-18 | 2022-06-24 | 锐迈机械科技（吴江）有限公司 | Compression type seat telescoping device and seat unit |
| CN215776810U (en) * | 2021-10-13 | 2022-02-11 | 礼恩派(嘉兴)有限公司 | Safety leg rest structure of sofa chair |
| CN115177113A (en) * | 2022-08-16 | 2022-10-14 | 锐迈科技股份有限公司 | Seat support and seat unit |
-
2022
- 2022-08-16 CN CN202210982518.4A patent/CN115177113A/en active Pending
-
2023
- 2023-07-21 WO PCT/CN2023/108671 patent/WO2024037282A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024037282A1 (en) * | 2022-08-16 | 2024-02-22 | 锐迈科技股份有限公司 | Seat bracket and seat unit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024037282A1 (en) | 2024-02-22 |
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