Backrest assembly with chamber for articles

• US 5,713,633 A
• Filed: 07/15/1996
• Issued: 02/03/1998
• Est. Priority Date: 07/15/1996
• Status: Expired due to Fees

• Current Assignee: Kuo-Ching Lu
• Original Assignee: Kuo-Ching Lu
• Inventors: Lu, Kuo-Ching
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): BARFIELD, ANTHONY DERRELL
• Application Number:
  US08/679,788
• Time in Patent Office: 568 Days
• Field of Search: 297/408, 297/391, 297/363-365, 297/188.07, 297/188.04, 297/284.1, 297/284.3, 297/217.3, 297/217.4, 297/405, 403/92, 403/93, 403/96
• US Class Current: 297/364
• CPC Class Codes: B60N 2/806 movable or adjustable
• CPC Class Codes: B60N 2/844 Release mechanisms, e.g. buttons
• CPC Class Codes: B60N 2/847 with stepwise positioning
• CPC Class Codes: B60N 2/879 with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
• CPC Class Codes: Y10T 403/32336 Engaging notch or recess in outer periphery of component

Abstract

A backrest assembly having chambers for articles is configured with a U-shape main frame. The top of the main frame has a connecting bracket. The connecting mechanism is adjustably connected with a spacing block with a spring biased steel ball, a recess and a spring biased latch. The spacing block is connected to a top plate with a spring biased steel ball, a recess and a spring biased latch. The main frame is also attached with a backrest which has a chamber at the rear side as well. By this provision, the main frame can be directly or removably attached to the seat of the car. A TV set can be disposed with the chamber of the pillow and a video, game, or karaoke can be installed within the chamber of the backrest. The position of the pillow and the backrest can be readily adjusted to a desired position by the adjustable connection according to different requirements. By the entertainment provided by the above mentioned equipment, boredom of passengers can be reduced during long-distance travel to the lowest level and the relationship among the family can be increased.

Claims

1. A backrest assembly, comprising:

a U-shaped frame assembly having an upper frame portion and a lower frame portion;

first adjusting means for adjustably connecting said upper frame portion with said lower frame portion;

a backrest joined with said U-shaped frame assembly, said backrest defining a chamber for storing articles;

a connecting bracket fixed to a top portion of said upper frame portion of said U-shaped frame assembly;

a spacing block;

second adjusting means for adjustably connecting said spacing block with said connecting bracket;

a top plate; and

third adjusting means for adjustably connecting said top plate with said spacing block; and

a pillow member supported by said top plate, a side of said pillow defining a chamber,

wherein said first adjusting means comprises a first pivot seat provided on said lower frame portion and a second pivot seat provided on said upper frame portion, a transverse shaft being received in a shaft opening defined in each of said first and said second pivot seats and securing said first and said second pivot seats in rotational engagement, one of said first and second pivot seats having a first ball opening defined therein and an opposing one of said first and said second pivot seats having a first plurality of circular recesses defined therein, one of said first and second pivot seats having a first latch opening defined therein and an opposing one of said first and second pivot seats having a first plurality of retaining recesses defined therein, said first ball opening receiving a first bolt and a first ball spring therein, said first ball spring biasing a first ball spring therein, said first ball spring biasing a first ball into one of said first plurality of circular recesses, said first latch opening receiving a first latch, a first latch spring and a first latch stopping plate therein, and said first latch spring biasing an end of said first latch into one of said first plurality of retaining recesses such that relative rotational movement between said first and second pivot seats is adjustably prevented.

2. The backrest assembly as defined by claim 1, wherein:

said second adjusting means comprises a third pivot seat provided on said connecting bracket and a fourth pivot seat provided on said spacing block, a transverse shaft being received in a shaft opening defined in each of said third and fourth pivot seats and securing said third and fourth pivot seats in rotational engagement, one of said third and fourth pivot seats having a second ball opening defined therein and an opposing one of said third and fourth pivot seats having a second plurality of circular recesses defined therein, one of said third and fourth pivot seats having a second latch opening defined therein and an opposing one of said third and fourth pivot seats having a second plurality of retaining recesses defined therein, said second ball opening receiving a second bolt and a second ball spring therein, said second ball spring biasing a second ball into one of said second plurality of circular recesses, said second latch opening receiving a second latch, a second latch spring and a second latch stopping plate therein, and said second latch spring biasing an end of said second latch into one of said second plurality of retaining recesses such that relative rotational movement between said third and said fourth pivot seats is adjustably prevented.

3. A backrest assembly as defined by claim 2, wherein:

said third adjusting means comprises a shaft seat connected with said top plate and rotatably engaged with a shaft provided on said spacing block, one of said shaft seat and said shaft on said spacing block having a third ball opening defined therein and an opposite one of said shaft seat and said shaft on said spacing block having a third plurality of circular recesses defined therein, one of said shaft seat and said shaft on said spacing block having a third latch opening defined therein and an opposite one of said shaft seat and said shaft on said spacing block having a third plurality of retaining recesses defined therein, said third ball opening receiving a third bolt and a third ball spring therein, said third ball spring biasing a third ball into one of said third plurality of circular recesses, said third latch opening receiving a third latch, a third latch spring and a third latch stopping plate therein, and said latch spring biasing an end of said latch into one of said third plurality of retaining recesses such that relative rotational movement between said shaft and said shaft seat is adjustably prevented.

4. A backrest assembly as defined by claim 1, wherein said lower frame portion of said U-shape main frame is inserted into a sleeve having an enclosed end, said sleeve being provided with a side hole which receives a bolt to be received in a slot in the lower frame portion of said U-shaped main frame.