CA2512236A1 - Tailgate support assembly with push-button release - Google Patents

Tailgate support assembly with push-button release Download PDF

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Publication number
CA2512236A1
CA2512236A1 CA002512236A CA2512236A CA2512236A1 CA 2512236 A1 CA2512236 A1 CA 2512236A1 CA 002512236 A CA002512236 A CA 002512236A CA 2512236 A CA2512236 A CA 2512236A CA 2512236 A1 CA2512236 A1 CA 2512236A1
Authority
CA
Canada
Prior art keywords
seating
support mechanism
support
locking
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002512236A
Other languages
French (fr)
Inventor
Matthew J. Starna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisher Dynamics Corp
Original Assignee
Fisher Dynamics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fisher Dynamics Corp filed Critical Fisher Dynamics Corp
Publication of CA2512236A1 publication Critical patent/CA2512236A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/52Trunk chairs, i.e. chairs collapsible to self contained carrying case, e.g. trunk shape

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  • Seats For Vehicles (AREA)

Abstract

A seating apparatus is provided including a seating member and a support mechanism. The seating member is pivotable between a first seating position and a second seating position. The support mechanism is attached to the seating member. The support mechanism is operable between a retracted position and an extended position. The support mechanism is adapted to engage a portion of a vehicle to support the seating member in the second seating position.

Description

TAILGATE SUPPORT ASSEMBLY WITH PUSH-BUTTON RELEASE
FIELD OF THE INVENTION
[0001] The present invention relates fo a seat support mechanism and, more particularly, a seat support mechanism adapted for use with a rear or third row seat that is pivotable between a forward facing position and a rearward facing position.
BACKGROUND OF THE INVENTION
[0002] Minivan and sport utility markets are extremely competitive. A
growing focus of the competition is the overall utility and comfort of these vehicles.
One important utility feature that is gaining much attention includes flexible vehicle.
interiors and, more particularly, flexible rear or third row seating assemblies.
Flexibility, in this sense, refers to the ability to modify the configuration of a particular seating assembly. For example, when attending an outdoor function, a consumer may desire to utilize the cargo compartment of the vehicle as a seating area.
This would allow the consumer to sit within the vehicle while maintaining a direct fine of sight with, and being able to hear, individuals outside of the vehicle. Thus, automobile manufacturers have developed a rear or third-row seat that is pivotable about the vehicle body from a forward seating position to a rearward seating position. A problem that exists, however, is that the cargo space of the vehicle is typically not configured to support the vehicle seat in this rear seating position.

SUMMARY OF THE INVENTION
j0003] A seating apparatus is provided including a seating member and a support mechanism. The seating member is pivotable between a first seating position and a second seating position. The support mechanism is attached to the seating member. The support mechanism is operable between a stored position and a supporting position. The support mechanism is adapted to engage a portion of a vehicle to support the seating member in the second seating position.
[0004] Another aspect of the present invention provides a vehicle seating apparatus including a seat and a support mechanism. The seat includes a first seating rpember and a second seating member. The seat is pivotable between a first seating position and a second seating position. The support mechanism is attached to the second seating member and is operable between a stored position and a supporting position. The support mechanism is adapted to engage a portion of a vehicle to support the seat in the second seating position.
[0005] Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[00063 The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:

[0007] Figure 1 is a perspective view of a seating apparatus in accordance with the principles of the present invention in a forward seating position;
[0008] Figure 2 is a perspective view of the seating apparatus of Figure 1 having a pair of support mechanisms in an extended position;
[0009] Figure 3 is a perspective view of the seating apparatus of Figure 2 in a rearward seating position;
[0010) Figure 4 is a perspective view of one of the pair of support mechanisms of Figures 1-3;
[0011] Figure 5 is an exploded perspective view of the support mechanism of Figure 4;
[0012] Figure 6 is a cross-sectional side view of the support mechanism taken through Line VI-VI of Figure 5;
]0013) Figure 7 is a cross-sectional side view of the support mechanism of Figure 4 in a retracted position;
[0014) Figure 8 is a cross-sectional side view of the support mechanism of Figure 4 in an extended position;
[0015] Figure 9A and 9B are partially hidden detail side views of the support mechanism of Figure 4 in the retracted position; and [0016] Figure 10 is a partially hidden detail side view of the support mechanism of Figure 4 in an extended position.
DETALLED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017j The following description of the preferred embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
(0018j Figures 1-3 depict a seating apparatus 10 having a pair of support mechanismsl2. The seating apparatus 10 is pivotable between a forward seating position, shown in Figures 1 and 2, and a rearward seating position, shown in Figure 3. The support mechanisms 12 are attached to a top portion of the seating apparatus 10 and are operable between a retracted position, shown in Figure 1, and an extended position, shown in Figures 2 and 3. The support mechanisms 12 are adapted to engage a portion of a vehicle body 14, such as a rear door sill, thereby supporting the seating apparatus 10 in its rearward seating position.
[0019j The seating apparatus 10 generally includes a seat bottom 16, a seatback 18, a headrest 20, and a pivot mechanism 22. As shown in Figures 1 and 2, the seat bottom 16 is generally horizontal and the seatback 18 is generally upright when the seating apparatus 10 is in its forward seating position.
Alternatively, the seat bottom 16 is generally upright and the seatback 18 is generally horizontal when the seating apparatus 10 is in its rearward seating position.
[0020j Figures 4-10 depict the support mechanism 12 including a housing sleeve 24, a cap 26, a locking mechanism 28, and a support arm subassembly 30.
The housing sleeve 24 and cap 26 contain the locking mechanism 28 and the support arm subassembly 30.
[0021 ] The housing sleeve 24 generally includes an elongated tubular member having an external surface 32, an internal surface 34, a containing end 36, and a receiving end 38. A plurality of attachment flanges 40 append from the external surface 32 of the housing sleeve 24. The attachment flanges 40 are adapted to receive fasteners (not shown), such as screws, to fasten the support mechanism 12 to the seating apparatus 10. The internal surface 34 of the housing sleeve 24 defines an internal abutment collar 42 and a plurality of internal guide rails 44, as best seen in Figure 6. The internal abutment collar 42 extends radially inward from the internal surface 34 and is disposed proximate to the receiving end 38 of the housing sleeve 24. The internal guide rails 44 also extend radially inward from the internal surface 34 of the housing sleeve 24. The infernal guide rails 44 each include an abutment end 46, a chamfered end 48, a locking edge 50, and a guide edge 52. The abutment ends 46 of the internal guide rails 44 are disposed adjacent to the internal abutment collar 42. The chamfered ends 48 of the internal guide rails 44 extend at an angle of approximately 45 degrees between the locking edge 50 and guide edge 52. The internal guide rails 44 define a plurality of blind guide slots 54 therebetween. The cap 26 includes a cylindrical body defining a blind bore 56, which is best illustrated in Figures 7 and 8. The blind bore 56 receives the containing end 36 of the housing sleeve 24. The cap 26 is fixed to the external surface 32 of the housing sleeve 24 via an adhesive, a set screw, by interference fit, or any other suitable means.
[0022] The locking mechanism 28 includes a nut 58 and a biasing member 60. The nut 58 generally includes a cylindrical body defining a plurality of locking arms 62 and a blind bore 64. As best illustrated in Figure 9B, the locking arms 62 include first and second longitudinal guide edges 66, 68 and a working edge 70.
The working edge 70 includes a Pocking longitudinal edge 72, an inclined locking surface 74, and an inclined unlocking surface 76. The inclined locking surface and inclined unlocking surface 76 are generally parallel to each other and extend at an angle of approximately 45 degrees relative to the locking longitudinal edge 72.
The locking arms 62 each have a semi-circumferential dimension that is slightly less than a semi-circumferential dimension of the blind guide slots 54 defined between the internal guide rails 44 of the housing sleeve 24. This enables the locking arms 62 to freely slide within the blind guide slots 54 upon extension and retraction of the support mechanism 12, as will be discussed in more detail below. The biasing member 60 includes a first end 78 and a second end 80. The first end 78 is disposed within the blind bore 64 of the cylindrical body of the nut 58. The second end 80 is disposed within the blind bore 56 of the cylindrical body of the cap 26. The biasing member 60 biases the nut 58 away from the cap 26. In an exemplary embodiment, the biasing member 60 includes a coil spring.
[0023) The support arm subassembly 30 is disposed within the housing sleeve 24 and includes a support arm 82 and a support arm sleeve 84. The support arm 82 is a generally elongated cylindrical member constructed of a rigid material such as steel. The support arm sleeve 84 is a generally tubular member receiving the support arm 82. The support arm sleeve 84 includes an external surface 86, an open end 88, and a closed end 90. The open end 88 includes a saw-toothed circumferential edge 92. The saw-toothed circumferential edge 92 includes a plurality of teeth 94. As best illustrated in Figure 9B, the teeth 94 each include a primary edge 96 and secondary edge 98 intersecting through an apex 100 at an angle of approximately 90 degrees.
[0024] The external surface 86 of the support arm sleeve 84 defines a plurality of guide pads i 02. The plurality of guide pads 102 extend radially outward from the external surface 86 of the support arm sleeve 84. The plurality of guide pads 102 each have a semi-circumferential dimension that is slightly smaller than the semi-circumferential dimensions of the blind guide slots 54 disposed between the internal guide rails 44 of the housing sleeve 24. This allows the guide pads 102 to freely slide within the blind guide slides 54 during actuation of the support mechanism 12. The plurality of guide pads 102 are disposed within the blind guide slots 54 to maintain the rotational disposition of the support arm subassembly relative to the housing sleeve 24.
[0025) Figures 9A and 9B depict the support mechanism 12 in the retracted position. The plurality of internal guide rails 44 on the internal surface 34 of the housing sleeve 24 lockingly engage the working edge 70 of the locking arms 62 of the nut 58. The chamfered ends 48 of each of the internal guide rails 44 engage the inclined locking surfaces 74 of the locking arms 62 of the nut 58.
The locking edges 50 of the plurality of guide rails 44 engage the locking longitudinal edges 72 of the working edges 70 of the locking arms 62 of the nut 58. This locking engagement maintains the rotational, as well as the axial disposition, of the locking mechanism 28, support arm subassembly 30, and housing sleeve 24 in this retracted position.

[0026) Figure 10 depicts the support mechanism 12 in the extended position. The guide pads 102 on the support arm sleeve 84 axially engage the abutment collar 42 on the infernal surface 34 of the housing sleeve 24. The locking arms 62 of the nut 58 are disposed within the guide slots 54 located between the internal guide rails 44 on the internal surface 34 of the housing sleeve 24.
The biasing member 60 biases the nut 58 and support arm subassembly 30 toward the receiving end 38 of the housing sleeve 24 to maintain this extended position.
[0027) The following steps provide the transition between the above-described retracted and extended positions. With the support mechanism 12 in the retracted position, as illustrated in Figures 9A and 9B, a downward axial force is applied to the closed end 90 of the support arm subassembly 30. This force axially displaces the support arm subassembly 30 such that the teeth 94 on the open end 88 of the support arm sleeve 84 engage the working edges 70 of the locking arms 62 of the nut 58. More particularly, the teeth 94 engage the working edges 70 such that their apexes 100 initially contact the inclined locking and unlocking surfaces 74, 76 of the working edge 70 of the locking arms 62 of fhe nut 58. Subsequently, the primary edges 96 of the teeth 94 slidably engage the respective inclined locking and unlocking surfaces 74, 76. This causes the nut 58 to rotate relative to the support arm subassembly 30 in a clockwise direction, as viewed from the cap 26 of the support mechanism 12 shown in Figures 9 and 10.
[0028) Once this initial rotation is achieved, the force applied to the closed end 90 of the support arm subassembly 30 can be released. This enables the biasing member 60 to axially displace the nut 58 in the upward axial direction toward the support arm subassembly 30. Upon such axial displacement, the inclined unlocking surface 74 of the working edge 70 of the locking arm 62 of the nut slidably engages the chamfered ends 48 of the internal guide rails 44 of the housing sleeve 24. This further causes the nut 58 to rotate in the clockwise direction, as viewed from the cap 26. This further rotation continues until the second longitudinal edge 68 of the locking arms 62 of the nut 58 passes the guide edge 52 of the guide rails 44 of the housing sleeve 24. At this point, the locking arms 62 of the nut 58 are substantially axially aligned with the plurality of blind guide slots 54 in the housing sleeve 24 disposed between the internal guide rails 44. The biasing member 60 is then enabled to fully extend and axially displace the nut 58 and support arm subassembly 30 to the extended position shown in Figure i 0. It should be appreciated that while the support arm subassembly 30 and locking mechanism 28 have been disclosed herein as including a nut 58 having locking arms 62 with working edges 70 adapted to slidably engage and interlock with a plurality of internal guide rails 44 having chamfered ends 48, it is envisioned that any type of manually or automatically actuable device capable of -serving the principles of the present invention is intended to be included within the scope of the invention.
[0029] The description of the invention is merely exemplary in nature and, thus, variations that do not depart from the gist of the invention are intended to be within the scope of the invention. Such variations are not to be regarded as a departure from the spirit and scope of the invention.

Claims (15)

1. A seating apparatus, comprising:
a seating member pivotable between a first seating position and a second seating position; and a support mechanism attached to said seating member, said support mechanism being operable between a retracted position and an extended position, said support mechanism adapted to engage a portion of a vehicle to support said seating member is in said second seating position.
2. The seating apparatus of claim 1 wherein said seating member is generally in said first seating position and generally horizontal in said second seating position.
3. The seating apparatus of claim 1 wherein said support mechanism includes a support arm at least partially disposed in a housing.
4. The seating apparatus of claim 3 wherein said support arm is substantially extended from said housing when said support mechanism is in said extended position and is substantially disposed within said housing when said support mechanism is in said retracted position.
5. The seating apparatus of claim 4 further comprising a biasing member biasing said support mechanism into said extended position and a locking mechanism for locking said support mechanism in said retracted position.
6. The seating apparatus of claim 5 wherein said locking mechanism selectively engages a locking surface of said housing.
7. The seating apparatus of claim 5 wherein said locking mechanism is disposed between said support arm and said biasing member.
8. A vehicle seating apparatus, comprising:
a seat including a first seating member and as second seating member, said seat being pivotable between a first seating position and a second seating position; and a support mechanism attached to said second seating member and being selectively operable between a retracted position and an extended position, said support mechanism adapted to engage a portion of a vehicle to support said seat in said second seating position.
9. The vehicle seating apparatus of claim 8 wherein said first seating member is generally horizontal and said second seating member is generally upright when said seat is in said first seating position and said first seating member is generally upright and said second seating member is generally horizontal when said seat is in said second seating position.
10. The vehicle seating apparatus of claim 8 wherein said support mechanism includes a support arm at least partially disposed in a housing.
11. The vehicle seating apparatus of claim 8 wherein said support arm is substantially extended from said housing when said support mechanism is in said extended position and is substantially disposed within said housing when said support mechanism is in said retracted position.
12 12. The vehicle seating apparatus of claim 11 further comprising a biasing member biasing said support mechanism into said extended position and a locking mechanism for locking said supporting mechanism in said retracted position.
13. The seating apparatus of claim 12 wherein said locking mechanism selectively engages a locking surface of said housing.
14. The seating apparatus of claim 13 wherein said locking mechanism is disposed between said support arm and said biasing member.
15. The vehicle seating apparatus of claim 8 wherein said support mechanism extends from a side of said second seating member that is opposite said first seating member.
CA002512236A 2004-07-12 2005-07-11 Tailgate support assembly with push-button release Abandoned CA2512236A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/889,658 2004-07-12
US10/889,658 US20060006702A1 (en) 2004-07-12 2004-07-12 Tailgate support assembly with push-button release

Publications (1)

Publication Number Publication Date
CA2512236A1 true CA2512236A1 (en) 2006-01-12

Family

ID=35540547

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002512236A Abandoned CA2512236A1 (en) 2004-07-12 2005-07-11 Tailgate support assembly with push-button release

Country Status (4)

Country Link
US (1) US20060006702A1 (en)
JP (1) JP2006027600A (en)
CA (1) CA2512236A1 (en)
DE (1) DE102005033822A1 (en)

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CN101797897B (en) * 2010-04-15 2012-12-05 浙江吉利汽车研究院有限公司 Bidirectional seat
CN205923505U (en) * 2016-06-01 2017-02-08 无锡豪思纺织品有限公司 Foldable storage stool
CN114954155A (en) * 2021-02-19 2022-08-30 威马智慧出行科技(上海)股份有限公司 Turnover multipurpose automobile seat

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Also Published As

Publication number Publication date
DE102005033822A1 (en) 2006-02-23
US20060006702A1 (en) 2006-01-12
JP2006027600A (en) 2006-02-02

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Legal Events

Date Code Title Description
FZDE Discontinued