Seat cushion frame assembly structure

Abstract

A combined structure of a seat cushion frame includes: a first side cushion frame and a second side cushion frame, mounted on a first side and a second side of a seat and configured to slide forward and backward, wherein the first side and the second side of the seat are opposite to each other; a central cushion frame, disposed between the side cushion frames and having a first side fixed to the first side cushion frame; and a support guide device, connected between the second side of the central cushion frame and the second side cushion frame and configured to guide the sliding movement of each of the second side cushion frame and the central cushion frame while supporting the weight of the second side cushion frame and the central cushion frame.

Description

Technical Field

[0001] This invention relates to a combined structure of a seat cushion frame. Background Technology

[0002] The statements in this section are provided only as background information in relation to the present invention and may not constitute prior art.

[0003] In the case of rear seats in luxury vehicles, the seat back and seat cushion are connected to each other via a hinge structure. Therefore, when the seat back is tilted back, the seat back tilts backward and the seat cushion slides forward, allowing rear passengers to adopt a relaxed posture to rest or sleep.

[0004] Therefore, in the case of rear seats where the angle of the seat back is adjusted together with the sliding of the seat, the rear seats are divided into a 6:4 ratio to suppress excessive increases in material cost and weight of the rear seats.

[0005] For example, in the rear seats, the seat cushion frame and seat back frame that form the left and center seats are fixed to each other, while the seat cushion frame and seat back frame that form the separate right seat can be configured to be separate from each other.

[0006] Meanwhile, the rear floor located under the center seat in the rear row is constructed with an upward protrusion shape, and the center seat has insufficient encapsulation space underneath, resulting in a weak structure for the cushion frame supporting the center seat.

[0007] Therefore, when three passengers are sitting in the rear seats, the weight of the passenger sitting in the middle seat is concentrated on the cushion frame of the middle seat, which may cause deformation of the cushion frame of the middle seat, such as denting.

[0008] The foregoing is intended only to help understand the background of the present invention and is not intended to imply that the present invention falls within the scope of related technologies known to those skilled in the art. Summary of the Invention

[0009] The present invention provides a combined structure for a seat cushion frame, wherein the rigidity of the cushion frame of the central seat of the vehicle is strengthened to suppress the denting and deformation of the cushion frame caused by passenger weight.

[0010] According to one aspect of the invention, a combined structure of a seat cushion frame includes: a first side cushion frame and a second side cushion frame, respectively mounted on a first side and a second side of a seat and configured to slide forward and backward, wherein the first side and the second side of the seat are opposite to each other; a central cushion frame, disposed between the side cushion frames and having a first side fixed to the first side cushion frame; and a support guide device connected between a second side of the central cushion frame and the second side cushion frame and configured to guide the sliding movement of each of the second side cushion frame and the central cushion frame while supporting the weight of the second side cushion frame and the central cushion frame.

[0011] The support guide device may include: a guide bracket, fixed to the vehicle body, and having a longitudinal groove formed in the guide bracket in the longitudinal direction; a central sliding pin, having a first end fixed to a central pad frame and having a second end configured to slide along the longitudinal groove of the guide bracket in the longitudinal direction; and a side sliding pin, having a first end fixed to a second side pad frame and having a second end configured to slide along the longitudinal groove of the guide bracket in the longitudinal direction.

[0012] To support the side pad frame, the assembly structure may also include: foot brackets, fixed to the vehicle body, and guide brackets that can be connected to the foot brackets.

[0013] The assembly structure may also include: a lower support, forming a guide support for connection to the foot support.

[0014] The longitudinal slots of the guide bracket may include: a plurality of slots formed on the opposite side of the guide bracket, wherein a central sliding pin may be inserted into a first slot of the plurality of slots, and a side sliding pin may be inserted into a second slot of the plurality of slots at a predetermined interval from the central sliding pin.

[0015] The guide bracket may include: a lower bracket, fixed to the vehicle body and having a first lower groove formed on a first side of the lower bracket along a longitudinal direction and a second lower groove formed on a second side of the lower bracket, wherein a side sliding pin is installed in the first lower groove and a central sliding pin is installed in the second lower groove; and an upper bracket configured to cover the lower bracket. The upper bracket may have: a first upper groove formed on a first side of the upper bracket along a longitudinal direction, having a shape corresponding to the shape of the first lower groove and configured to cover the side sliding pin; and a second upper groove formed on a second side of the upper bracket along a longitudinal direction, having a shape corresponding to the shape of the second lower groove and configured to cover the central sliding pin.

[0016] The lower and upper supports can be hinged to each other at the first end and bolted to each other at the second end.

[0017] The upper support may include an opposite inner surface, and the lower support may include an opposite outer surface, wherein the opposite inner surface of the upper support is configured to fit onto and cover the opposite outer surface of the lower support.

[0018] The guide bracket may also include a bushing that is attached to the inner surface of the longitudinal groove.

[0019] The support guide device may further include: a first step portion formed on each of the second ends of the side slide pin and the second end of the central slide pin, and having a diameter greater than the height of the longitudinal groove of the guide bracket; and a second step portion formed on the middle portion of each of the side slide pin and the middle portion of the central slide pin, and having a diameter greater than the height of the longitudinal groove of the guide bracket, and the portion between the first step portion and the second step portion may be located in the longitudinal groove of the guide bracket, such that the side slide pin and the central slide pin can slide.

[0020] According to the assembly structure of the invention, the support guide is connected to a central cushion frame and side cushion frames that are separate from each other (the support guide is located between the two), and supports the cushion frame located on the opposite side of the support guide. Thus, when a passenger sits in the central seat, the weight of the passenger applied to the central cushion frame is distributed to the cushion frame located on the opposite side of the support guide. Therefore, the rigidity of the central cushion frame is strengthened, thereby suppressing dents and deformations of the central cushion frame caused by passenger weight.

[0021] Other areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are for illustrative purposes only and are not intended to limit the scope of the invention. Attached Figure Description

[0022] To better understand the present invention, various forms of the invention will now be described by way of example with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a view illustrating the combination relationship between a seat cushion frame and a support guide device according to one embodiment of the present invention;

[0024] Figure 2 This is a view showing the shape of a support guide device according to one form of the invention;

[0025] Figure 3 This is a view illustrating the assembly relationship of a guide bracket fixed to a vehicle body according to one form of the present invention;

[0026] Figure 4 This is a view showing the structure of a slot for a sliding pin connection to a guide bracket according to one form of the invention; and

[0027] Figure 5This is a view showing the structure of a sliding pin insertion guide bracket according to one form of the present invention.

[0028] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Detailed Implementation

[0029] The following description is exemplary in nature only and is not intended to limit the invention, application, or use. It should be understood that in all the drawings, corresponding reference numerals indicate similar or corresponding parts or components.

[0030] In the following description, various forms of the invention will be described in detail with reference to the accompanying drawings.

[0031] Figure 1 This is a view illustrating the combination relationship between a seat cushion frame and a support guide device according to one embodiment of the present invention.

[0032] Reference Figure 1 The seat used in this invention can be a three-seater installed in the rear row of a passenger vehicle and divided into a left-right 6:4 ratio, wherein the angle of the seat back is adjusted according to the fore-and-aft sliding operation of the seat.

[0033] Therefore, the structure of the seat is briefly described. Multiple cushion frames 100, 200, and 300 forming the seat cushion frame are provided inside the seat cushion, and a motor M is provided to provide forward and backward sliding force to the cushion frames 100, 200, and 300 and to the seat cushion.

[0034] For example, motor M is fixed to the seat cushion; a worm gear is connected to the shaft of motor M; and the worm gear meshes with a rack fixed to the vehicle body 10, so that during the operation of motor M, the driving force of motor M is transmitted to cushion frames 100, 200 and 300 through the gear meshing structure, thereby causing the seat cushion to slide forward and backward.

[0035] In addition, the rear end of each of the cushion frames 100, 200 and 300 is hinged to the lower end of the backrest frame 600 located inside each of the cushions in the seat back, and the upper end of the backrest frame 600 is hinged to the vehicle body 10, so that the angle of the seat back can be adjusted according to the sliding of each of the cushions.

[0036] Meanwhile, as described above, the combined structure of the cushion frame for the seat (as described above, the seat is continuously connected from one side to the other in a predetermined proportion) includes: side cushion frames 100 and 200, mounted on opposite sides of the seat and configured to slide forward and backward; a central cushion frame 300, disposed between the side cushion frames 100 and 200, and having a first side fixed to the first side cushion frame 100 in the side cushion frames; and a support guide device 400, connected between the second side of the central cushion frame 300 and the second side cushion frame 200 in the side cushion frames, and configured to guide the sliding movement of each of the second side cushion frame 200 and the central cushion frame 300 while supporting their weight.

[0037] For example, the side cushion frames 100 and 200 are formed with rectangular shapes and form the frames for the left and right seat cushions, respectively. The central cushion frame 300 is formed with a rectangular shape smaller than the rectangular shape of each of the side cushion frames 100 and 200, and forms the frame for the central seat cushion and is fixed to the first side cushion frame 100.

[0038] Furthermore, the central pad frame 300 and the second side pad frame 200 are installed at predetermined intervals. The support guide device 400 is installed in the interval in the front-rear direction, and the central pad frame 300 and the second side pad frame 200 are configured to be supported by opposite surfaces of the support guide device 400, with each of the central pad frame 300 and the second side pad frame 200 facing the support guide device.

[0039] That is, the support guide device 400 is connected between the central cushion frame 300 and the second side cushion frame 200, and supports the central cushion frame 300 and the second side cushion frame 200. Thus, when a passenger sits in the central seat, the weight of the passenger applied to the central cushion frame 300 is distributed to the first side cushion frame 100, and also to the second side cushion frame 200 due to the support guide device 400.

[0040] Therefore, the rigidity of the central pad frame 300 is strengthened, and dents and deformations caused by passenger weight are suppressed.

[0041] at the same time, Figure 2 This is a view showing the shape of a support guide device 400 according to one form of the present invention.

[0042] Reference Figure 2The configuration of the support guide device 400 is described in detail. The support guide device 400 includes: a guide bracket 410, fixed to the vehicle body 10, and having a longitudinal groove 440 formed in the guide bracket 410 in the front-rear direction; a central sliding pin 420, having a first end fixed to a central pad frame 300 and a second end configured to slide along the longitudinal groove 440 of the guide bracket in the front-rear direction; and a side sliding pin 430, having a first end fixed to a second side pad frame 200 and a second end configured to slide along the longitudinal groove 440 of the guide bracket in the front-rear direction.

[0043] For example, the fixed bracket 310 is fixed to the side of the central pad frame 300 facing the first side of the support guide device 400, and the first end of the central sliding pin 420 is welded to the fixed bracket 310.

[0044] Additionally, the fixing bracket 210 is fixed to the side of the second side pad frame 200 facing the second side of the support guide device 400, and the first end of the side sliding pin 430 is welded to the fixing bracket 210.

[0045] Specifically, the central sliding pin 420 and the side sliding pin 430 are respectively inserted into a plurality of slots 440 formed on opposite sides of the guide bracket 410. Therefore, during the fore-and-aft sliding of the seat cushion, the central sliding pin 420 and the side sliding pin 430 support the central cushion frame 300 and the second side cushion frame 200 respectively while sliding along the slots 440. Even during the sliding of the seat cushion, the central sliding pin 420 and the side sliding pin 430 distribute the passenger weight applied to the central cushion frame 300 laterally and suppress dents and deformations of the central cushion frame 300.

[0046] in addition, Figure 3 This is a view showing the assembly relationship of a guide bracket 410 fixed to the vehicle body 10 according to one form of the present invention.

[0047] Reference Figure 3 In order to support the side pad frames 100 and 200, the foot bracket 500 can be fixed to the vehicle body 10, and the guide bracket 410 can be connected to the foot bracket 500.

[0048] For example, the foot bracket 500 is fixed to the rear floor located below the side pad frames 100 and 200 and the center pad frame 300, and the guide bracket 410 is fixed to the lower surface of the foot bracket 500, thus the guide bracket 410 is fixed to the vehicle body 10. For reference, the guide bracket 410 includes a lower bracket 410a and an upper bracket 410b. The lower bracket 410a is formed by extending into the foot bracket 500 and can be welded to the lower surface of the foot bracket 500.

[0049] at the same time, Figure 4This is a view showing the structure of a sliding pin connection to a groove 440 of a guide bracket 410 according to one form of the invention, and Figure 5 This is a view showing the structure in which the sliding pin is inserted into the guide bracket 410.

[0050] Reference Figure 4 The guide bracket groove 440 includes a plurality of grooves formed on the opposite side of the guide bracket 410, wherein a central slide pin 420 is inserted into a first groove 440 of the plurality of grooves, and a side slide pin 430 is inserted into a second groove 440 of the plurality of grooves at a predetermined interval from the central slide pin 420.

[0051] That is, the central sliding pin 420 and the side sliding pin 430 are separately disposed in the groove 440 formed on opposite sides of the guide bracket 410. Therefore, the central sliding pin 420 and the side sliding pin 430 can guide and support the back-and-forth sliding movement of the seat cushion supported by the central sliding pin 420 and the seat cushion supported by the side sliding pin 430, respectively.

[0052] In addition, such as Figure 4 As shown, the guide bracket 410 includes: a lower bracket 410a, fixed to the vehicle body 10 and having a lower groove 440a formed on each of the middle portions on opposite sides of the lower bracket in the longitudinal direction, such that the side sliding pin 430 and the central sliding pin 420 are respectively installed in the lower grooves formed on opposite sides of the lower bracket; and an upper bracket 410b, formed to have a shape that covers the lower bracket 410a and having an upper groove 440b formed on each of the middle portions on opposite sides of the upper bracket in the longitudinal direction, having a shape corresponding to the shape of the lower groove 440a, such that the upper bracket covers the side sliding pin 430 and the central sliding pin 420 installed in the lower bracket 410a.

[0053] For example, after each of the side sliding pins 430 and the central sliding pin 420 is installed in the lower groove 440a in each of the two formed on opposite sides of the lower bracket 410a, the upper bracket 410b covers the upper side of the lower bracket 410a to engage with each other, thereby performing the assembly of the guide bracket 410.

[0054] Specifically, the lower groove 440a formed in the lower bracket 410a forms the lower part of the groove 440, and the upper groove 440b formed in the upper bracket 410b forms the upper part of the groove 440, thereby forming a longitudinal groove 440, whereby the central sliding pin 420 and the side sliding pin 430 can slide along the groove 440.

[0055] In addition, the lower bracket 410a and the upper bracket 410b are hinged to each other at their first ends and bolted to each other at their second ends.

[0056] That is, the second end of the upper bracket 410b is hinged relative to the first end of each of the lower bracket 410a and the upper bracket 410b, so that the second end of the upper bracket 410b covers the second end of the lower bracket 410a and is bolted to the second end of the lower bracket 410a. Therefore, by simply combining the lower bracket 410a and the upper bracket 410b with each other, the rigidity of the central pad frame 300 can be strengthened without significantly increasing assembly time.

[0057] Additionally, refer to Figure 2 The upper and lower supports are configured such that the opposite inner surface of the upper support 410b is fitted onto the opposite outer surface of the lower support 410a to cover the opposite outer surface of the lower support 410a.

[0058] That is, the cross-section of each of the upper bracket 410b and the lower bracket 410a is configured to present a U-shape with an opening at the bottom. The upper bracket 410b is configured such that the width between its opposite surfaces is greater than the width between the opposite surfaces of the lower bracket 410a, so that the upper bracket 410b and the lower bracket 410a are combined such that the lower bracket 410a has a shape that is fitted into the upper bracket 410b.

[0059] in addition, Figure 5 This is a view showing the structure of the slide pin insertion guide bracket 410 according to the present invention.

[0060] Reference Figure 5 The bushing 450 can be connected to the inner surface of the longitudinal groove 440 of the guide bracket along the inner surface of the guide bracket.

[0061] That is, the bushing 450 is connected to the groove 440 along the groove 440, thereby maintaining the gap between the groove 440 and the sliding pin, thereby suppressing the frictional noise between the sliding pin made of steel and the guide bracket 410.

[0062] In addition, first step portions 422 and 432 are formed on the second end of the central slide pin 420 and the second end of the side slide pin 430, respectively. Each of the first step portions has a diameter greater than the height of the longitudinal groove 440 of the guide bracket. Second step portions 424 and 434 are formed on the middle of the central slide pin 420 and the middle of the side slide pin 430, respectively. Each of the second step portions has a diameter greater than the height of the longitudinal groove 440 of the guide bracket.

[0063] Additionally, each of the portions between the first step portions 422 and 432 and the second step portions 424 and 434 is located in the groove 440, allowing the side sliding pin 430 and the central sliding pin 420 to slide.

[0064] That is, the sliding pin is supported in the groove 440 by the first step portions 422 and 432 and the second step portions 424 and 434, so the sliding pin will not detach from the guide bracket 410 and can slide stably along the groove 440.

[0065] As described above, according to some forms of the invention, the support guide 400 connects the central cushion frame 300 to the side cushion frames 200 (the central cushion frame and the side cushion frames are separate from each other) and supports the cushion frames located on the opposite side of the support guide 400. Therefore, when a passenger sits on the central seat, the weight of the passenger applied to the central cushion frame 300 is distributed to the side cushion frames via the support guide 400. This strengthens the rigidity of the central cushion frame 300 and suppresses denting and deformation of the central cushion frame 300 due to passenger weight.

[0066] Although various forms of the invention have been described for illustrative purposes, those skilled in the art will understand that various modifications, additions, and substitutions can be made without departing from the scope and spirit of the invention.

Claims

1. A combined structure for a seat cushion frame, the combined structure comprising: A first side cushion frame and a second side cushion frame are respectively mounted on a first side and a second side of the seat, and each of the first side cushion frame and the second side cushion frame is configured to slide forward and backward, wherein the first side and the second side of the seat are opposite to each other; A central pad frame, disposed between the first side pad frame and the second side pad frame, and having a first side fixed to the first side pad frame; and A support and guiding device is connected between the second side of the central pad frame and the second side pad frame, and is configured to guide the sliding movement of each of the second side pad frame and the central pad frame while supporting the weight of the second side pad frame and the central pad frame. The support and guiding device includes: A guide bracket, fixed to the vehicle body, and having a longitudinal groove formed in the guide bracket along the front-rear direction; A central sliding pin has a first end fixed to the central pad frame and a second end configured to slide along a longitudinal groove of the guide bracket in the front-rear direction; and The side sliding pin has a first end fixed to the second side pad frame and a second end configured to slide along a longitudinal groove of the guide bracket in the front-rear direction.

2. The combination of claim 1, further comprising: Foot brackets fixed to the vehicle body The guide bracket is connected to the foot bracket.

3. The combination of claim 2, further comprising: The lower bracket forms the guide bracket and is connected to the foot bracket.

4. The combined structure according to claim 1, wherein, The longitudinal groove of the guide bracket includes: a plurality of grooves formed on the opposite side of the guide bracket. The central sliding pin is inserted into the first slot of the plurality of slots, and The side sliding pin is inserted into the second slot of the plurality of slots at a predetermined interval from the central sliding pin.

5. The combination of claim 1, wherein, The guide bracket includes: A lower bracket, fixed to the vehicle body, having a first lower groove formed on a first side of the lower bracket along the longitudinal direction and a second lower groove formed on a second side of the lower bracket, wherein the side sliding pin is mounted in the first lower groove and the central sliding pin is mounted in the second lower groove; and An upper support, configured to cover the lower support, and comprising: A first upper groove, formed along the front-rear direction on a first side of the upper bracket, has a shape corresponding to the shape of the first lower groove, and is configured to cover the side sliding pin; and The second upper groove is formed on the second side of the upper bracket along the front-rear direction, has a shape corresponding to the shape of the second lower groove, and is configured to cover the central sliding pin.

6. The combined structure according to claim 5, wherein, The lower support and the upper support are hinged to each other at their respective first ends and bolted to each other at their respective second ends.

7. The combined structure according to claim 5, wherein, The upper support includes opposite inner surfaces, and the lower support includes opposite outer surfaces. The opposite inner surface of the upper support is configured to fit onto and cover the opposite outer surface of the lower support.

8. The combined structure according to claim 1, wherein, The guide bracket further includes a bushing, which is connected to the inner surface of the longitudinal groove.

9. The combined structure according to claim 8, wherein, The support and guiding device further includes: A first step portion is formed on each of the second ends of the side sliding pin and the second end of the central sliding pin, and has a diameter greater than the height of the longitudinal groove of the guide bracket; as well as The second step is formed on the middle portion of each of the side sliding pin and the middle portion of the central sliding pin, and has a diameter greater than the height of the longitudinal groove of the guide bracket. The portion between the first stepped portion and the second stepped portion is located in the longitudinal groove of the guide bracket.

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