TWI599333B - A seat flexible lumbar support - Google Patents

Description

Flexible waistrest device for a seat

The present invention relates to a lumbar support for a seat, and more particularly to a flexible lumbar support.

For users who need to sit for a long time, such as computer paperwork or traffic driving, the ergonomic effect of the seat is more important than the appearance, because the comfort of the seat will directly affect the user. Physical and mental state and work efficiency.

In order to increase the ergonomics of the seat, the operator often adds a lumbar support to the seat to enhance the support of the back to enhance the comfort of use, as disclosed in M348543, but the prior art only provides a single The adjustment function in the downward direction and the downward direction does not provide the adjustment of the multi-direction such as the downward direction and the left-right direction, so that the use effect of the lumbar support device is relatively reduced, and it is easy to affect or reduce the efficiency of using the seat due to individual body factors.

The main object of the present invention is to provide a flexible lumbar support device for a seat, comprising: two abutting members arranged symmetrically in a left-right direction, wherein each abutting member has a flexible abutting surface and each flexible A fixing member is disposed at a rear end of the abutting surface; a positioning member is disposed at a rear of the two abutting members, and two left and right sliding grooves are arranged thereon and arranged in a straight line, so that the fixing members of the abutting members are Corresponding to being embedded in each chute and capable of sliding left and right; a V-shaped support member having a frontward extension and The left and right flexible legs are formed into obtuse angles and have flexible ends, and the front ends of the flexible legs are respectively slidably coupled to a long slot provided on the left and right ends of the positioning member, so that the V-shaped support member The two flexible legs can be flexibly opened or folded after being pressed; and a seat corresponding to the rear of the V-shaped support member; wherein, when the two abutting members are fixed When the two parts slide to the right and left in the left and right sliding grooves, the flexible abutting surfaces of the two abutting members can synchronously slide the left and right directions on the positioning member, so that users of different body types can satisfy the abutment. The needs of the waist.

1‧‧‧Lumbar support

10‧‧‧Attendance

11‧‧‧Abutment

11a‧‧‧Mesh structure

12‧‧‧Fixed parts

20‧‧‧ Positioning parts

21‧‧‧Chute

22‧‧‧ card convex

23‧‧‧damper mechanism

231‧‧‧damper wheel

232‧‧‧Rack slider

30‧‧‧Support

31‧‧‧ feet

32‧‧‧Long slot

40‧‧‧Support

41‧‧‧Slot

42‧‧‧ teeth row

421‧‧‧ teeth

50‧‧‧Activities

51‧‧‧Lock hole

52‧‧‧ convex teeth

60‧‧‧Abutment

70‧‧‧Outsourcing bag

2‧‧‧ seats

3‧‧‧ Back frame

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of an embodiment of a lumbar support of the present invention.

Figure 2 is a side cross-sectional view of the embodiment of Figure 1.

3 is a perspective view showing the use of the lumbar support of the present invention in combination with the seat back frame.

4 is a schematic perspective view of the combination of FIG.

FIG. 5 is a perspective view of another view (rear view) of FIG. 4.

Fig. 6 is a perspective view showing the state of use of the lumbar support of the present invention.

Figure 7 is a partial plan view showing the lumbar support of the present invention in an unused state.

Figure 8 is a partial plan view showing the lumbar support of the present invention in use.

Figure 9 is a side cross-sectional plan view showing the lumbar support of the present invention in use.

Figure 10 is an exploded perspective view of the support and the movable member of the lumbar support of the present invention.

Figure 11 is an exploded perspective view of the positioning member of the lumbar support of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

1 and 2, the present invention is a flexible lumbar support device 1 for a seat, which includes two abutting members 10, a positioning member 20, a V-shaped support member 30 and a seat 40 in a front-to-back direction.

Referring to FIG. 1 to FIG. 6 , the two abutting members 10 are arranged symmetrically in the left-right direction, wherein each abutting member 10 has a flexible abutting surface 11 , and a fixing member is disposed at a rear end of each flexible abutting surface 11 . 12.

The flexible abutting surfaces 11 of the two abutting members 10 form a mesh structure 11a, and the flexible and mesh structure of the flexible abutting surface 11 can provide more support and load on the waist of the user. surface.

Referring to FIG. 1 to FIG. 9 and FIG. 11 , the positioning member 20 is disposed at the rear of the two abutting members 10 , and is provided with two left and right sliding grooves 21 and arranged in a line to fix the abutting members 10 . The member 12 can be embedded in each of the chutes 21 and can slide left and right in each of the chutes 21.

Referring to FIG. 6 to FIG. 8 , when the fixing members 12 of the two abutting members 10 slide left and right in the left and right sliding chutes 21 (as shown by the double-headed arrow A in FIGS. 6 and 8 ), the two abutting Each of the flexible abutment surfaces 11 of the member 10 can be slidably displaced in the left and right direction on the positioning member 20, so that users of different body types can adjust the waistrest device 1 to meet the need for comfort against the waist.

Referring to FIG. 11 , a damper mechanism 23 is further disposed inside the positioning member 20 , and includes a damper wheel 231 and a two-rack slider 232 . As shown in FIG. 1 and FIG. 3, the fixing members 12 of the two abutting members 10 are further locked to the respective rack sliders 232, as shown in FIG. 11, wherein the two rack sliders 232 are respectively opposite. The damper wheel 231 is disposed on the upper and lower sides of the damper wheel 231 and is respectively coupled to the damper wheel 231 for damper sliding.

Referring to FIG. 1 and FIG. 3 to FIG. 8 , the V-shaped support member 30 has two left and right flexible legs 31 extending forward and extending at an obtuse angle, and each flexible leg 31 has a long groove at the front end thereof. The holes 32 are slidably coupled to a card protrusion 22 provided on the left and right ends of the positioning member 20, respectively. Figure 7 As shown in FIG. 8, the two flexible legs 31 of the V-shaped support member 30 can flexibly perform left-right expansion or retraction after being pressed, that is, as shown by the double-headed arrow A in FIG. .

Referring to FIGS. 1 to 4 , the holder 40 is disposed at the rear of the V-shaped support member 30 to support the V-shaped support member 30 .

Referring to FIGS. 1 to 3, the V-shaped bottom of the V-shaped support member 30 is further coupled to a movable member 50. The movable member 50 further has a locking hole 51 for locking the V-shaped support member 30. As shown in FIG. 10, an arcuate convex tooth 52 is further disposed on both sides of the locking hole 51.

Referring to FIGS. 1 to 3 and FIGS. 6 and 9, the holder 40 further has an up-and-down seating groove 41 for the movable member 50 to be disposed therein and can slide up and down (as shown by the double-headed arrow B in FIGS. 6 and 9). ).

Referring to FIG. 10, the two rows of the upper and lower seating grooves 41 are further provided with a tooth row 42 which is formed by a plurality of concave arc-shaped teeth 421 arranged in a straight line for the arc convex of the movable member 50. The teeth 52 can be moved and adjusted to correspond to a concave arc-shaped tooth 421 of each tooth row 42 to improve the positioning or accuracy of the movable member 50 when it is adjusted up and down.

Referring to FIG. 2 and FIG. 4 and FIG. 9 , the two flexible abutting surfaces 11 further comprise an abutting portion 60 , which comprises a cushion layer, a foam layer, a pillow body, an elastic cloth and an air bag. To enhance the comfort when using the lumbar support device 1.

Referring to FIGS. 3-6, the holder 40 can be further coupled to the back frame 3 of a seat 2 to form an integral body, thereby facilitating the convenience of the manufacturer to manufacture the seat 2 or the back frame 3.

Referring to FIG. 2 and FIG. 9 , the two abutting members 10 , the positioning member 20 , the V-shaped support member 30 , the support member 40 , the movable member 50 and the abutting portion 60 can be further packaged into an outer bag 70 . The lumbar support device (single) is convenient for users to carry and use.

With the above structure, the present invention has the following advantages:

(1) The two abutting members 10 have a sliding displacement function in a plurality of directions, such as a left-right direction and an up-and-down direction, so that users of different body types can satisfy the demand for the waist and improve the use efficiency of the lumbar support device 1.

(2) The support 40 of the lumbar support device 1 can be designed as a single structure, and can be designed to be integrated with the back frame 3 of a seat 2, which is advantageous for the manufacturer's production control and consumer selection.

1‧‧‧Lumbar support

10‧‧‧Attendance

11‧‧‧Abutment

11a‧‧‧Mesh structure

12‧‧‧Fixed parts

20‧‧‧ Positioning parts

21‧‧‧Chute

22‧‧‧ card convex

232‧‧‧Rack slider

30‧‧‧Support

31‧‧‧ feet

32‧‧‧Long slot

40‧‧‧Support

41‧‧‧Slot

50‧‧‧Activities

51‧‧‧Lock hole

Claims (4)

A flexible lumbar support device for a seat, comprising: two abutting members arranged symmetrically in a left-right direction, wherein each abutting member has a flexible abutting surface, and the rear end of each flexible abutting surface is provided a fixing member; a positioning member correspondingly disposed at the rear of the two abutting members, wherein two left and right sliding grooves are arranged and arranged in a straight line, so that the fixing members of the abutting members can be embedded in the respective chutes The V-shaped support member has a left and right flexible legs extending forward and extending into an obtuse angle and having flexibility. The front ends of the flexible legs are respectively slidably coupled to each other. Provided on a card protrusion on the left and right ends of the positioning member, so that the two flexible legs of the V-shaped support member can be flexibly opened or folded after being pressed; The utility model is disposed at the rear of the V-shaped support member; a movable member is fixedly coupled to the V-shaped bottom of the V-shaped support member and embedded in the support, the movable member has a locking hole for the V-shaped support The piece is locked, and an arc-shaped convex tooth is disposed on each side of the locking hole, and the support has an up-and-down seat groove for the The movable member is disposed therein and can slide up and down, wherein each of the two sides of the upper and lower seating grooves is provided with a tooth row formed by a plurality of concave arc-shaped teeth, wherein the arcuate convex teeth of the movable member can be adjusted and corresponding to the teeth. And a damper mechanism comprising a damper wheel and a two-rack slider, wherein each of the fixing members of each abutting member is embedded in the two of the positioning members The abutting members can be correspondingly locked to the respective rack sliders in the slot, wherein the two rack sliders are respectively disposed on the upper and lower sides of the damper wheel and respectively meshed with the damper wheel for damping Sliding sex Wherein, when the fixing members of the two abutting members slide left and right in the left and right sliding grooves, the flexible abutting surfaces of the two abutting members can synchronously slide the left and right directions on the positioning member. The lumbar support device of claim 1, wherein each of the flexible abutment surfaces of the two abutting members forms a mesh structure. The lumbar support device according to claim 1, wherein the two flexible abutting surfaces are further provided with an abutting portion, and the abutting portion comprises a cushion layer, a foam layer, a pillow body, an elastic cloth and an air bag. The lumbar support device of claim 1, wherein the support is further formed integrally with a back frame of a seat.