Patent Application
20250185811
The present disclosure relates to the technical field of seat brackets, and in particular to a seat bracket and a seat unit.
Functional seats can be adjusted to meet the needs of users in different positions, in which a lying position can minimize the user's fatigue, so that the seat has the function of a “bed”.
The Chinese patent with Publication No. CN214230641U discloses a leg mechanism and a sofa extension mechanism, which provides a footrest assembly, and specifically a first footrest structure mounted on a first footrest member that is fixed. When is in use, in the process of switching from the extended state to the retracted state, there is a risk of the obstacle (the user himself, or a person or object other than the user) being pinched once it exists in the movement path of the first footrest plate, and it is also relatively difficult for the user to take out the obstacle under the retracted state, which is insufficiently safe.
In view of the deficiencies of the prior art, an objective of the present disclosure is to provide a seat bracket with an elastic member capable of being extended when the first footrest member is obstructed during the retracted process, which may lead to a reduction in the risk of the first footrest member pinching an obstacle in its path.
Another objective of the present disclosure is to provide a seat unit that prevents an obstacle between a first footrest plate and floor armrest from being pinched, and also allows an obstacle pinched between the first footrest plate and the floor armrest to be easily removed by a user when the seat unit is in a retracted state.
Embodiments of the present disclosure are achieved by the following technical solutions.
A seat bracket includes an intermediate transmission assembly and an extension assembly mounted on the intermediate transmission assembly.
The extension assembly includes:
According to an implementation, the limit member is provided on the first transition link.
According to an implementation, the elastic member is provided between the first footrest member and the first transition link.
According to an implementation, the first transition link is provided with a first extension plate, the first footrest member is provided with a second extension plate, an end of the elastic member is connected to the first extension plate, and an opposite end of the elastic member is connected to the second extension plate.
According to an implementation, the elastic member is a tension spring.
According to an implementation, the first footrest member is provided with a limit plate cooperated with the limit member.
According to an implementation, the first transition link is hinged with a second footrest member, the second transition link is provided between the second footrest member and the extension structure, an end of the second transition link is hinged to the second footrest member, and an opposite end thereof is hinged to the extension structure.
According to an implementation, a drive member mounted on the intermediate transmission assembly, configured to drive the extension assembly to switch between an extended state and a retracted state, the extension structure is provided with a first limit protrusion, the second footrest member is provided with a limit notch cooperated with the first limit protrusion, and the limit notch is snap-fitted to the first limit protrusion when the extension assembly is in the retracted state.
According to an implementation, the extension structure includes:
According to an implementation, the first extension link is provided with a second limit protrusion, the second drive link is provided with an extended notch and a retracted notch that are adapted to the second limit protrusion, a hinge point between the first extension link and the first drive link is defined as a fourth hinge point, a hinge point between the first extension link and the first transition link is defined as a fifth hinge point, the second hinge point is located between the fourth hinge point and the fifth hinge point, the second limit protrusion is located between the second hinge point and the fourth hinge point, the second limit protrusion is snap-fitted into the extended notch when the extension assembly is in the extended state, and the second limit protrusion is snap-fitted into the retracted notch when the extension assembly is in the retracted state.
According to an implementation, the first footrest member is hinged to the first transition link through a pin, the elastic member is sleeved outside the pin, an end of the elastic member is mounted to the first footrest member, and an opposite end thereof is mounted to the first transition link.
A seat unit includes a floor armrest and the aforementioned seat bracket. The intermediate transmission assembly is mounted to the floor armrest, the first footrest member is provided with a first footrest plate, and, during the switching of extension assembly from the extended state to the retracted state, the elastic member is capable of being extended to enable the first footrest member to be disengaged from the limit member when the first footrest plate is subjected to an external force in a direction from the floor armrest to the first footrest plate.
According to an implementation, the first footrest plate is mounted on a mounting plane of the first footrest member, a width of the first footrest plate is greater than that of the first footrest member, and a width direction of the first footrest plate is parallel to a width direction of the mounting plane of the first footrest member.
According to an implementation, a width of the mounting plane of the first footrest member is less than or equal to 100 mm, and the width of the first footrest plate is in a range of 110 mm to 130 mm.
The technical solutions of the embodiments of the present application have at least the following advantages and beneficial effects:
According to the present disclosure, the structural design of the first footrest plate cooperating with the elastic member enables the elastic member to be extended out to play a cushioning role for the first footrest plate when the first footrest plate is abutted against an obstacle during the retracted process of the seat. As a result, rigid contact between the first footrest plate and the obstacle is avoided, allowing for a reduction in the risk of pinching the obstacle between the first footrest plate and the seat frame, and preventing the first footrest plate from being damaged by the obstacle, which may extend the service life of the present seat bracket.
In order to illustrate the technical solutions of the embodiments of the present disclosure more clearly, the following drawings are briefly described as required in the context of the embodiments. It should be understood that the following drawings only illustrate only some of the embodiments of the present disclosure and should therefore not be considered as limiting the scope. Other relevant drawings may be obtained on the basis of these drawings without any creative effort by those skilled in the art.
Labels: 1 extension assembly, 101 fourth hinge point, 102 second hinge point, 103 third hinge point, 104 first hinge point, 105 fifth hinge point, 106 sixth hinge point, 107 seventh hinge point, 11 first drive link, 12 second drive link, 121 extended notch, 122 retracted notch, 13 second extension link, 131 first limit protrusion, 14 first extension link, 141 second limit protrusion, 15 first transition link, 151 first extension plate, 152 limit member, 16 second transition link, 17 second footrest member, 171 limit notch, 18 first footrest member, 181 second extension plate, 182 first footrest plate, 183 limit plate, 19 elastic member, 2 intermediate transmission assembly, 21 seat frame, 3 floor armrest.
For a better understanding and implementation, the technical solutions in the embodiments of the present disclosure are clearly and completely described below in conjunction with the attached drawings of the present disclosure.
In the description of the present disclosure, it is to be noted that the terms “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside” and other orientation or position relationships are based on the orientation or position relationships shown in the attached drawings. It is only intended to facilitate description of the present disclosure and simplify description, but not to indicate or imply that the referred device or element has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as a limitation of the present disclosure.
Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are used only to describe specific embodiments and are not intended as a limitation of the disclosure.
Referring to
Further, as shown in
In other embodiments, the first footrest member 18 may be mounted to the first transition link 15 by two tension springs, with the first footrest member 18 being abutted against the limit member 152 by the action of the two tension springs. The first footrest member 18 is completely disengaged from the limit member 152 in the form of extension the two tension springs when the first footrest member 18 is subjected to an external force (a force that is opposite to a movement direction of the first footrest member 18 during the retracted process of the seat bracket).
In a further embodiment, the first footrest member 18 and the first transition link 15 are slidably connected, with the two being connected by an elastic member 19, and the slidable connection may be in the form of any of the existing linear slidable connection structures. In the present embodiment, the first footrest member 18 is provided with a limit plate 183 cooperated with the limit member 152. In the present embodiment, the limit plate 183 and the first footrest member 18 are integrally molded. An inner side of the limit plate 183 and the limit member 152 is a working surface, and the shape of the working surface is adapted to the shape of the limit member 152, so that they have a large contact area and a high degree of stability when they are abutted against each other.
In the present embodiment, the first transition link 15 is hinged with a second footrest member 17 through a pin, with their hinge point being a seventh hinge point 107, and the second transition link 16 is provided between the second footrest member 17 and the extension structure. An end of the second transition link 16 is hinged to the second footrest member 17, and an opposite end thereof is hinged to the extension structure. The second footrest member 17 being cooperated with the first footrest member 18 herein is configured to increase a load area when the seat bracket is in the extended state, which can provide a larger support area for the user's legs or feet, thereby effectively improving the user's comfort when in use. Specifically, as shown in
In the present embodiment, a drive member (not shown in the figures) is mounted on the intermediate transmission assembly 2, configured to drive the extension assembly 1 to switch between an extended state and a retracted state. Specifically, as shown in
In the present embodiment, the drive member may be an electric actuator.
Further, the first extension link 14 is provided with a second limit protrusion 141. A hinge point between the first extension link 14 and the first drive link 11 is defined as a fourth hinge point 101, a hinge point between the first extension link 14 and the first transition link 15 is defined 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 limit protrusion 141 is located between the second hinge point 102 and the fourth hinge point 101. In the present embodiment, the second drive link 12 is provided with an extended notch 121 and a retracted notch 122 that are configured to be cooperated with the second limit protrusion 141. Specifically, the second limit protrusion 141 is snap-fitted into the extended notch 121 to limit the second drive link 12 when the extension assembly 1, i.e., the seat bracket, is in the extended state. The second limit protrusion 141 is snap-fitted into the retracted notch 122 to limit the second drive link 12 when the extension assembly 1, i.e., the seat bracket, is in the retracted state.
It should be noted that, in other embodiments, the elastic member 19 may be provided between the first footrest member 18 and the first extension link 14, at which time the elastic member 19 is located at an outer side of the first extension link 14. Admittedly, the setting of the elastic member 19 is not limited to this. It is only necessary to enable the mounted elastic member 19 to act on the first footrest member 18 and to enable the first footrest member 18 to be abutted against the limit member 152, and to enable the first footrest member 18 to pull the elastic member 19 and disengage from the limit member 152 when the first footrest member 18 is subjected to a force in a direction opposite to its movement direction during the switching of the seat bracket from the extended state to the retracted state. Provided in the present embodiment is further a seat unit, applying the aforementioned seat unit. Specifically, as shown in
In the present embodiment, the first footrest plate 182 is mounted on a mounting plane of the first footrest member 18, a width of the first footrest plate 182 is greater than that of the first footrest member 18, and a width direction of the first footrest plate 182 is parallel to a width direction of the mounting plane of the first footrest member 18. In the present embodiment, the width of the mounting surface of the first footrest member 18 is 100 mm, and the width of the first footrest plate 182 is 120 mm. In the retracted state, the first footrest plate 182 may obscure the first footrest member 18 in front of the seat, maintaining the aesthetics of the seating unit.
As shown in
The technical means disclosed in the solution of the present disclosure are not limited to those disclosed in the embodiments mentioned above but also include technical solutions consisting of any combination of the above technical features. It should be noted that for those skilled in the art, multiple improvements and modifications may be made without departing from the principles of the present disclosure. These improvements and modifications are also considered to be within the scope of protection of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210982518.4 | Aug 2022 | CN | national |
The present application is a Continuation Application of PCT Application No. PCT/CN2023/108671 filed on Jul. 21, 2023, which claims priority of Chinese Patent Application No. 2022109825184 filed on Aug. 16, 2022 before CNIPA. All the above are hereby incorporated by reference in their entirety as part of the present disclosure.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2023/108671 | Jul 2023 | WO |
| Child | 19054940 | US |
