WO2019056523A1 - Ejection structure for flank of seat backrest - Google Patents

Abstract

A seat back side flap (11, 12, 31, 32) pop-up structure, wherein the seat back comprises a back inner panel (10), an adjustment plate (20) and a back outer panel (30), the back inner panel (10) And two sides of the back outer panel (30) are respectively provided with corresponding side flaps (11, 12, 31, 32), and the adjusting board (20) is mounted on the back inner panel (10) and the back outer panel ( 30) Between the corresponding two side flaps (11, 12, 31, 32), the side flaps (11, 12) of the back inner panel (10) are provided with a boss (41) and a first fixing block (43). a adjusting groove (42) is disposed on the adjusting plate (20) corresponding to the position of the boss (41), and the adjusting plate (20) is corresponding to the position of the first fixing block (43) a sliding window (45) is provided, and a second fixing block (44) is disposed on one side of the sliding window (45); the first fixing block (43) is assembled in the sliding window (45), An ejector spring (46) is mounted between the first fixing block (43) and the second fixing block (44); the slanting table (51) is further disposed on the adjusting plate (20), and the slanting plate Taiwan (51) A pressing device is mounted on the backrest outer panel (30) corresponding to the position; due to the setting of the adjusting plate (20), the backrest can be adjusted according to the use of the backrest to adjust the seat back flank (11, 12, 31, 32) the goal of.

Description

Seat back wing ejection structure Technical field

The present invention relates to the technical field of automobile seats, and in particular to a seat back side flap pop-up structure.

Background technique

At present, in the child safety seat, since the backrest mainly provides support for the side of the child occupant in the side collision accident of the vehicle, the acceleration of the body after the collision is reduced and the body is prevented from coming into contact with the hard material to cause injury, so the backrest is child safety. An important part of the seat, from a safety point of view, the longer the length of the two side flaps of the backrest, the better the protection of the occupants. However, from the point of view of use, the excessively long backrest flank greatly affects the daily installation and storage of the seat.

Summary of the invention

The technical problem to be solved by the present invention is to provide a seat back flank ejection structure, which can achieve the purpose of additionally increasing the length of the backrest flank without affecting the convenience of daily use, thereby increasing the overall safety of the child safety seat.

In order to achieve the above technical effects, the present invention discloses a seat back side flap pop-up structure, wherein the seat back includes a backrest inner panel, an adjustment panel and a backrest outer panel, both sides of the backrest inner panel and the backrest outer panel Corresponding side flaps are respectively disposed on the two sides, and the adjusting plate is disposed between the back inner panel and the two side flaps corresponding to the back outer panel, and the side panel of the back inner panel is provided with a boss and a a fixing block, a sliding slot is disposed on the adjusting plate corresponding to the position of the boss, the boss is assembled in the sliding slot; and the adjusting plate is corresponding to the position of the first fixing block a sliding window, and a second fixing block is disposed on one side of the sliding window; the first fixing block is assembled in the sliding window, and between the first fixed block and the second fixed block A push-on spring is mounted.

The seatback flank ejection structure of the present invention is improved in that the adjustment plate is provided with a slanting table, and a pressing device is mounted on the outer plate of the backrest corresponding to the position of the slanting table.

A further improvement of the seat back side flap ejection structure of the present invention is that the pressing device comprises a stop pin, a pin cylinder, a press pin spring and a press pin, the pin barrel being fixed on the side flap of the back outer panel The stop pin is inserted into the pin barrel, and one end thereof protrudes from the outside of the pin barrel and is formed with an overhanging portion, and the pin spring is sleeved on the extension of the stop pin On the paragraph, The pin member is mounted at an end of the overhanging portion of the stop pin, and both ends of the pin spring are respectively abutted against the pin barrel and the pin member.

A further improvement of the seat back flank ejection structure of the present invention is that the two ends of the stop pin are respectively a first end and a second end, and the stop pin is provided with a convex at a position close to the first end a stop pin is disposed in the pin barrel, and the first end and the outer protrusion of the stop pin are located inside the back outer plate, and the first end is closely attached to the adjustment a ramp of the plate, the outward projection abutting a side flap of the back outer panel; a second end of the stop pin extending from the pin barrel and forming the overhanging section.

A further improvement of the seat back side flap ejection structure of the present invention is that the press pin member is a press pin cap, and the press pin cap is disposed on the outer circumference of the press pin spring.

A further improvement of the seat back side flap pop-up structure of the present invention is that the boss has a T-shaped cross section, including a first sub-board and a second sub-board perpendicular to each other, the first sub-board being perpendicular to the back inner panel The side panels, the second sub-board is parallel to the side flaps of the back inner panel; and the first sub-board of the boss is fixed to the side flaps of the back inner panel.

A further improvement of the seat back side flap ejection structure of the present invention is that the chute includes a mounting opening and a strip groove communicating with the mounting opening, the mounting opening having a size corresponding to the size of the boss.

A further improvement of the seat back flank ejection structure of the present invention is that the mounting opening is flush with the top surface of the strip groove.

The seat back side flap pop-up structure of the invention, when the seat back needs to be folded and stored, relies on the pressing of the seat back and the seat cushion, and the adjustment plate is moved by the compression of the push-up spring to reduce the length of the back side flap; When it is required to be opened, the adjustment plate is moved by the elastic force of the push-up spring, thereby increasing the length of the backrest wing. Thus, the present invention additionally increases the length of the backrest flank using the movable adjustment plate without affecting the convenience of daily use, and increases the overall safety of the child safety seat.

DRAWINGS

Figure 1 is an exploded view of the seat back flap ejection structure of the present invention;

2 is a partial structural schematic view of a seat back side flap pop-up structure of the present invention;

3 is a schematic structural view of a chute in a seat back side flap pop-up structure of the present invention;

4 is a schematic structural view of a boss in a seat back side flap pop-up structure of the present invention;

FIG. 5 is a schematic structural view of a boss of a seat back side flap pop-up structure of the present invention assembled in a sliding slot; Figure

Figure 6 is a schematic external view of the seat back when the push-up spring is retracted;

7 is a schematic structural view of a pop-up structure when the push-up spring is contracted;

Figure 8 is a schematic external view of the seat back when the push-up spring is extended;

Figure 9 is a schematic structural view of the pop-up structure when the push-up spring is extended;

10 and 11 are state diagrams when the pressing device is operated.

Detailed ways

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

As shown in FIG. 1 , a seat back flank ejection structure of the present invention includes a backrest inner panel 10, two adjusting panels 20 and a back outer panel 30, and the backrest inner panel 10 is respectively provided on both sides. The side flaps 11, 12 are respectively provided with side flaps 31, 32 on both sides of the back outer panel 30, the adjusting panel 20 has a curved flange 21, and the adjusting panel 20 is mounted on the back inner panel 10 and the Between the two side flaps corresponding to the back outer panel 30, that is, the adjusting panel 20 is disposed between the side flaps 11 of the back inner panel 10 and the side flaps 31 of the back outer panel 30, and the backrest Between the side flaps 12 of the panel 10 and the side flaps 32 of the backrest outer panel 30, in the present embodiment, only the ejection structures at the side flaps 11 and the side flaps 31 are illustrated, and the ejection structures at the side flaps 12 and the side flaps 32 are the same , not much to repeat.

With reference to FIG. 1 and FIG. 2, the side flaps 11 of the backrest inner panel 10 are provided with a boss 41 and a first fixing block 43. The adjusting panel 20 is provided with a sliding slot 42 corresponding to the position of the boss 41. In this embodiment, the number of the bosses 41 and the sliding slots 42 are respectively set to two, and when the backrest inner panel 10 is assembled with the adjusting panel 20, the two bosses 41 are respectively placed corresponding thereto. In the chute 42, the boss 41 is movable along the longitudinal direction of the chute 42. A sliding window 45 is disposed on the adjusting plate 20 corresponding to the position of the first fixing block 43 . The sliding window 45 is disposed adjacent to the side of the curved flange 21 of the adjusting plate 20 , and is provided with a second fixing block 44 . When the backrest inner panel 10 is assembled with the adjustment panel 20, the first fixing block 43 is placed in the sliding window 45 and is movable in the sliding window 45. An ejector spring 46 is mounted between the first fixing block 43 and the second fixing block 44 disposed in the sliding window 45. In the embodiment, the first fixing block 43 faces the second fixing block 44. A protrusion is disposed on one side of the first fixing block 44, and an opposite protrusion is disposed on a side of the second fixing block 44. The two ends of the pushing spring 46 are respectively sleeved and mounted on the first The stud of the fixing block 43 and the stud of the second fixing block 44. Thereby, under the expansion and contraction action of the ejector spring 46, the second fixing block 44 is forced to move and the adjustment plate 20 is moved, and at the same time, The boss 41 slides along the longitudinal direction of the chute 42 to function as a limit for the adjustment plate.

In this embodiment, the chute 42 is located on a side of the second fixing block 44 adjacent to the arcuate flange 21 of the adjusting plate 20.

Preferably, the edge of the adjusting plate 20 is provided with a slot plate 22, and the slot plate 22 and the adjusting plate 20 form a card slot for the back outer plate 30 to be placed.

3 to 5, the boss 41 has a T-shaped cross section and includes a first sub-board 411 and a second sub-board 422 which are perpendicular to each other, and the first sub-board 411 is perpendicular to the back inner panel 10 The side flaps 11, the second sub-board 412 is parallel to the side flaps 11 of the back inner panel 10, and one side of the first sub-board 411 is fixed on the side flaps 11 of the back inner panel 10, The other side of one of the sub-boards 411 is fixed to the second sub-board 412, whereby the first sub-board 411 moves relative to the adjustment plate 20 in the chute 42 as the adjustment plate 20 moves. The sliding slot 42 includes a mounting opening 421 and a strip-shaped slot 422. The mounting opening 421 and the strip-shaped slot 422 communicate with each other. The size of the mounting opening 421 corresponds to the size of the boss 41, whereby the boss 41 passes through the mounting opening 421 when the adjusting plate 20 is assembled with the back inner panel 10. Preferably, the top surface of the mounting opening 421 is flush with the top surface of the strip slot 422 to facilitate the smooth movement of the first sub-board 411 of the boss 41.

In order to prevent the child from pressing the side flap of the seat back or the ejector spring 46 from failing, the present invention also provides an emergency pop-up structure including a ramp 51 and a pressing device. The inclined table 51 is fixed on the adjusting plate 20 and located on a side of the second fixing block 44 adjacent to the curved flange 21 of the adjusting plate 20. In the embodiment, the inclined table 51 is disposed on Between the two chutes 42. The pressing device is mounted on the back outer panel 30 at a position corresponding to the inclined table 51.

As shown in FIGS. 1 and 2, the pressing device includes a pin barrel 52, a stop pin 53, a pin spring 54 and a pin member 55, and the pin barrel 52 is fixed to the back outer plate 30. The side of the side flap 31 corresponds to the position of the ramp 51. The stop pin 53 is disposed in the pin barrel 52 from the inner side of the side flap 31, and one end of the stop pin 53 protrudes from the outer side of the pin barrel 52 and is formed with an overhanging portion. The spring 54 is mounted on the overhanging portion of the stop pin 53, and the press pin member 55 is mounted at the end of the overhanging portion of the stop pin 53, so that both ends of the pin spring 54 The pin barrel 52 and the pin pressing member 55 are respectively abutted.

Further, the two ends of the stop pin 53 are respectively a first end 531 and a second end 532, and the position of the stop pin 53 near the first end 531 thereof is provided with an outer convex portion 533 at the pressing device. When assembled, the second end 532 of the stop pin 53 penetrates into the pin barrel 52 from the inside of the side flap 31 and from the pin The outer side of the barrel 52 protrudes to form the overhanging portion. At this time, the outer convex portion 533 of the stop pin 53 abuts against the inner side of the side flap 31, and the first end of the stop pin 53 The 531 abuts against the ramp 51 of the adjustment plate 20. Thereby, by applying a force to the pressing means, the applied pressure is transmitted to the inclined table 51, and the inclined table 51 is moved together with the regulating plate 20 under the action of pressure.

Further, the pin member 55 is a pin cap. When the pin cap is mounted on the second end 532 of the stop pin 53, the pin cap covers the pin spring 54 therein. Does not affect the appearance of the seat back.

1, FIG. 6 and FIG. 7, when the seat is not in use, that is, when the seat back is folded and stored, the seat back flank and the seat cushion are squeezed, and the extended adjustment plate 20 is pressed into the back inner panel 10 and the backrest. In the outer panel 30, during the pressing of the adjusting plate 20, the sliding groove 42 moves along the straight line of the first sub-plate 411 of the boss 41; at the same time, the second fixing block 44 moves with the adjusting plate 20, so that the second fixing block 44 The push-up spring 46 between the first fixed block 43 is compressed, and the seat back is stored quickly and conveniently.

8 and FIG. 9, when the seat is used, the seat back is folded into a normal use state, and during the folding process, the pressing force between the seat back flank and the seat cushion disappears, thereby pushing the contracted state. The top spring 46 is extended. During the extension of the push-up spring 46, the elastic force pushes the second fixing block 44 to move and drives the adjusting plate 20 to move. At this time, the sliding groove 42 is along the first sub-plate 411 of the boss 41. The linear movement causes the elongation of the seat back flank to be achieved by the movement of the adjustment plate 20.

10 and 11, when the child is pressed against the seat back flank or the ejector spring 46 fails, causing the adjustment plate 20 to be unable to extend, the emergency ejection structure can ensure that the back side flank can still be extended to the side of the seat. The largest position protects children. When the side of the seat is impacted, the emergency pop-up structure is activated, and the pressure pin block 55 applies pressure to the pin spring 54 due to the collision, and the rear pin spring 54 further transmits the pressure to the stop pin 43, due to the position of the stop pin 43 One end abuts against the inclined table 51, and under the action of pressure, a frictional force is generated between the inclined table 51 and the stop pin 43. The friction force causes the inclined table 51 to drive the adjustment plate 20 to move, thereby realizing the extension of the seat back flank long.

The pin spring 54 is disposed to prevent the stop pin 53 from rattling after the ramp 51 is moved. The moving distance of the adjusting plate 20 is equal to the length of the sliding slot 42, and the arrangement of the sliding groove 42 and the boss 41 serves as a limiting function to prevent damage to the pushing spring 46 when the external force is excessive.

The utility model relates to a seat back side flap pop-up structure. On the one hand, when the backrest is not in use, the side flaps automatically shrink and do not affect the storage of the backrest; on the other hand, when the backrest is used, the side flaps automatically extend and play a protective role, which is very convenient. When the spring is not automatically ejected by external pressure or damage, if an accident occurs and the backrest side is impacted, the emergency pop-up structure is activated to cause the side flap to elongate. It plays a protective role and prevents damage to the health of the occupants. The pop-up structure of the invention can also be used at the armrest or headrest of the seat to achieve the effect of elongation.

The present invention has been described in detail above with reference to the accompanying drawings and embodiments. FIG. Therefore, some of the details of the embodiments are not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (8)

A seat back side flap pop-up structure, wherein the seat back comprises a backrest inner panel, an adjusting panel and a backrest outer panel, and two sides of the backrest inner panel and two sides of the backrest outer panel are respectively provided with corresponding side flaps, The adjusting plate is disposed between the two inner wings of the back inner plate and the outer back plate, wherein the side plate of the back inner plate is provided with a boss and a first fixing block, a sliding slot is disposed on the adjusting plate corresponding to the position of the boss, the boss is assembled in the sliding slot; a sliding window is disposed on the adjusting plate corresponding to the position of the first fixing block, and A second fixing block is disposed on one side of the sliding window; the first fixing block is assembled in the sliding window, and an ejector spring is mounted between the first fixing block and the second fixing block. The seat back side flap pop-up structure according to claim 1, wherein the adjusting plate is provided with a tilting table, and a pressing device is mounted on the backrest outer panel corresponding to the inclined table position. The seat back side flap ejection structure according to claim 2, wherein the pressing device comprises a stop pin, a pin barrel, a pin spring and a pin member, and the pin barrel is fixed to the a locating pin of the backrest outer plate, the stop pin is inserted into the pin barrel, and one end thereof protrudes from the outside of the pin barrel and is formed with an overhanging portion, and the pin spring is sleeved at the end On the overhanging portion of the pin, the pin member is mounted at an end of the overhanging portion of the stop pin, and both ends of the pin spring abut against the pin and the pin member, respectively. The seat back side flap pop-up structure according to claim 3, wherein the two ends of the stop pin are respectively a first end and a second end, and the position of the stop pin near the first end An outer convex portion is disposed, the stop pin is disposed in the pin barrel, and the first end and the outer convex portion of the stop pin are located inside the back outer plate, and the first end a ramp that abuts the adjustment plate, the outer protrusion abuts a side flap of the back outer panel; a second end of the stop pin projects from the pin barrel and forms the overhanging section. The seat back side flap pop-up structure according to claim 3, wherein the press pin member is a press pin cap, and the pin cap is disposed on an outer circumference of the pin spring. The seat back side flap pop-up structure according to claim 1, wherein the boss has a T-shaped cross section, and includes a first sub-board and a second sub-board perpendicular to each other, the first sub-board being perpendicular to a side wing of the back inner panel, the second sub-board being parallel to the side flap of the back inner panel; and the first sub-board of the boss is fixed to the side flap of the back inner panel. The seat back flank ejection structure according to claim 1, wherein: The chute includes a mounting opening and a strip groove communicating with the mounting opening, the mounting opening having a size corresponding to the size of the boss. The seat back side flap ejection structure according to claim 7, wherein the mounting opening is flush with the top surface of the strip groove.

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