Lumbar support assembly

Abstract

Proposed is a lumbar support assembly having an air bladder and components for operating the air bladder and facilitating the assembly and maintenance thereof. The lumbar support assembly includes: a suspension mat having a first hole formed at the inner side thereof, and having a second hole formed at one edge thereof; an air bladder having a first clip hole, which is formed at one edge thereof and overlaps with the first hole; a pouch including a pump and having a second clip hole, which is formed at one edge thereof and overlaps with the second hole; a fixing clip that can be mounted in the first clip hole or the second clip hole; and an electronic valve which has a first tube connected to the air bladder and a second tube connected to the pump and which is coupled to the rear surface of the suspension mat.

Claims

1. A lumbar support assembly, comprising: a suspension mat having a first hole formed at an inner side thereof, and having a second hole formed at one edge thereof; an air bladder having a first clip hole, which is formed at one edge thereof and overlaps with the first hole; a pouch including a pump and having a second clip hole, which is formed at one edge thereof and overlaps with the second hole; a fixing clip mounted in the first clip hole or the second clip hole; and an electronic valve having a first tube connected to the air bladder and a second tube connected to the pump, the electronic valve being coupled to a rear surface of the suspension mat, wherein the air bladder and the pouch are coupled to the suspension mat using the fixing clip.

2. The lumbar support assembly of claim 1, wherein the fixing clip comprises: a plate-shaped head part; and a support part formed on one side of the head part, and having a plurality of ring-shaped locking steps that are formed on an outer circumference of the support part in a longitudinal direction thereof.

3. The lumbar support assembly of claim 1, wherein at least one hook is formed on the rear surface of the suspension mat to fix the first tube or the second tube.

4. The lumbar support assembly of claim 1, further comprising: a pair of tension springs coupled to both edges of an upper portion of the suspension mat.

5. The lumbar support assembly of claim 1, further comprising: a wire unit coupled to the rear surface of the suspension mat.

6. The lumbar support assembly of claim 1, further comprising: a felt pad having a first communication hole that communicates with the first hole and the first clip hole, and a second communication hole that communicates with the second hole and the second clip hole, the felt pad being attached to a front surface of the suspension mat.

Description

DESCRIPTION OF DRAWINGS

(1) FIG. 1 is an exploded perspective view of a lumbar support assembly 100 according to an embodiment.

(2) FIG. 2 is a perspective view of the lumbar support assembly 100 according to the embodiment.

(3) FIG. 3 is a diagram illustrating a coupling structure of a suspension mat 110 and an electronic valve 150.

(4) FIG. 4 is a perspective view of a wire unit 170.

(5) FIG. 5 is an exploded perspective view of a lumbar support assembly 100′ according to another embodiment.

DESCRIPTION OF REFERENCE NUMERALS OF IMPORTANT PARTS

(6) 100: lumbar support assembly 110: suspension mat 112: first hole 114: second hole 116: hook 118: wire fixing protrusion 120: air bladder 122: first clip hole 130: pouch 132: pump 134: second clip hole 140: fixing clip 142: head part 144: support part 144a: locking step 150: electronic valve 152: first tube 154: second tube 160: tension spring 170: wire unit 172: first wire 174: second wire 176: hanger clip 178: wire clip 180: felt pad 182: first communication hole 184: second communication hole

MODE FOR INVENTION

(7) Hereinafter, lumbar support assemblies 100 and 100′ according to various embodiments will be described in detail with reference to the accompanying drawings.

(8) FIG. 1 is an exploded perspective view of a lumbar support assembly 100 according to an embodiment, and FIG. 2 is a perspective view of the lumbar support assembly 100 according to the embodiment.

(9) Referring to FIGS. 1 and 2, the lumbar support assembly 100 according to the embodiment includes a suspension mat 110, an air bladder 120, a pouch 130, a fixing clip 140, and an electronic valve 150.

(10) The suspension mat 110 is installed in a seat, and functions to support the back of a passenger sitting on a seat. The suspension mat 110 has a predetermined area, and may be made of a metal material and a synthetic-resin material each having elasticity.

(11) At least one first hole 112 is formed in the inner side of the suspension mat 110, and at least one second hole 114 is formed in an edge thereof. The number of first holes 112 may be changed depending on the number of air bladders 120 and the shape of each air bladder 120, and the number of second holes 114 may be changed depending on the size and shape of the pouch 130.

(12) Meanwhile, for the purpose of the compatibility of the component (the fixing clip 140), the first hole 112 and the second hole 114 may be formed to have the same size.

(13) The air bladder 120 is a component that expands when air is injected, and functions to alleviate the lower-back fatigue of a passenger sitting on the seat. The air bladder comprises at least one or more air bladders. The air bladder 120 is coupled to a front surface of the suspension mat 110.

(14) A first clip hole 122 is formed in one edge (the center of an upper portion, etc.) of the air bladder 120 to overlap the first hole 112. The first clip hole 122 may have the same size as the first hole 112. Depending on the size and shape of the air bladder 120, the location of the first clip hole 122 may be adjusted.

(15) A pump 132 is provided in the pouch 130 to provide air to the air bladder 120, and a second clip hole 134 is formed in one side of the pouch 130 to overlap the second hole 114.

(16) The fixing clip 140 comprises a plurality of fixing clips, and is inserted into the first clip hole 122 in a state where the first hole 112 and the first clip hole 122 overlap each other, thus fixing the air bladder 120 to the suspension mat 110. Furthermore, in the state where the second hole 114 and the second clip hole 134 overlap each other, the fixing clip is inserted into the second clip hole 134, thus fixing the pouch 130 to the suspension mat 110.

(17) The fixing clip 140 may be formed of a synthetic resin material.

(18) The fixing clip 140 may be formed in various shapes. For example, the fixing clip 140 may include a plate-shaped head part 142, and a support part 144 that protrudes from a side of the head part 142 and has a plurality of ring-shaped locking steps 144a formed on an outer circumference of the support part in a longitudinal direction thereof.

(19) The electronic valve 150 includes a first tube 152 that is connected to the air bladder 120 (the number of first tubes 152 may be changed depending on the number of air bladders 120), and a second tube 154 that is connected to the pump 132 provided in the pouch 130. The electronic valve is coupled to the back of the suspension mat 110.

(20) FIG. 3 is a diagram illustrating a coupling structure of the suspension mat 110 and the electronic valve 150.

(21) Referring to FIG. 3, in the lumbar support assembly 100 according to the embodiment, a plurality of fixing holes is formed in the suspension mat 110, and a plurality of fixing hooks is provided on the electronic valve 150, so that the fixing hooks are inserted into the fixing holes, thus allowing the electronic valve 150 to be coupled to the suspension mat 110.

(22) Meanwhile, the lumbar support assembly 100 according to the embodiment may further include a tension spring 160 and a wire unit 170. The tension spring 160 and the wire unit 170 are used to fix the lumbar support assembly 100 according to the embodiment to a seat frame.

(23) The wire unit 170 may be coupled to a plurality of wire fixing protrusions 118 provided on the rear surface (back) of the suspension mat 110. Furthermore, the wire unit 170 and the suspension mat 110 may be formed to be coupled to each other through insert molding. Referring to FIG. 4, the wire unit 170 may include a straight-line-shaped first wire 172, a ‘U’-shaped second wire 174, a hanger clip 176, and a wire clip 178.

(24) FIG. 5 is an exploded perspective view of a lumbar support assembly 100′ according to another embodiment.

(25) Referring to FIG. 5, the lumbar support assembly 100′ according to another embodiment further includes a felt pad 180 of a predetermined area, which is made of a material for absorbing vibration or sound, unlike the lumbar support assembly 100 according to the preceding embodiment. The felt pad 180 is provided between the suspension mat 110 and the air bladder 120. A first communication hole 182 communicating with a first hole 112 and a first clip hole 122, and a second communication hole 184 communicating with a second hole 114 and a second clip hole 134 may be formed in the felt pad 180.

(26) Since the lumbar support assemblies 100 and 100′ according to various embodiments are configured such that the air bladder 120 and the pouch 130 can be rapidly coupled to the suspension mat 110 using the fixing clip 140, the lumbar support assemblies are significantly easier in assembly and maintenance (component replacement), compared to a conventional lumbar support assembly mentioned in the Background Art section.

(27) Furthermore, a hook 116 is provided on the suspension mat 110, so that there is no cable tie, thus making it possible to neatly arrange the first tube 152 and the second tube 154.

(28) Although specific embodiments of the present disclosure have been disclosed in detail as described above, it is obvious to those skilled in the art that such description is merely of preferable exemplary embodiments and is not construed to limit the scope of the present invention.

(29) Therefore, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.