Nova Patents
US3665527A

Concealable beds

Abstract

Structure for supporting a bed for movement between a position of non-use adjacent a ceiling of a room and a position of use adjacent a floor of a room. The structure includes hollow vertical columns extending between and fixed to the floor and ceiling of the room with the columns having outer walls directed away from each other and formed with elongated slots. Within the columns adjacent the slots are guides which communicate with the slots, and a pair of horizontal frame members which are adapted to carry a spring extend horizontally across the outer walls of the columns and carry guide members which extend through the slots into the guides within the columns to be guided thereby for vertical movement. A counterweight is freely movable vertically in one of the columns in the space therein which is not occupied by the guide, and a pair of cables extend from the counterweight upwardly around pulleys at the top of the columns to the opposed frame members which extend across the outer walls of the columns to be connected thereto, so that this one counterweight in one of the columns is connected through the cables to both of the frame members for counterbalancing the weight of the vertically movable bed. In the same way it is possible to connect a second counterweight in the other column through suitable cables over pulleys at the top of the columns to horizontal frame members of a second bed, these latter frame members being guided by the same columns and carrying a second spring which may be situated above or below the first spring.

US3665527A, drawing sheet 1
Sheet 1 of 5

Term

Term ended

Expired 30 May 1989, 37.3 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

5 claims: 2 independent, 3 dependent

  1. 1
    I claim:1. In an arrangement for supporting a bed for vertical movement, while remaining horizontal, between a position of nonuse adjacent a ceiling of a room and a position of use adjacent a floor of a room, a pair of parallel vertical columns extending between and fixed to the floor and ceiling of the room, said columns being hollow and having outer walls directed away from each other and formed with longitudinal slots, a pair of elongated guides situated within said columns and also being formed with longitudinal slots, the latter slots being aligned with the slots of said columns, and said guides occupying only a part of the interiors of said columns, respectively, a pair of horizontal frame members carrying a spring and extending horizontally across said outer walls of said columns, said frame members respectively carrying guide members which extend through said slots into said guides to be guided by the latter for vertical movement, a counterweight situated in one of said columns in the space therein which is not occupied by the guide therein, pulleys situated at the tops of said columns, and a pair of cables extending from said counterweight around said pulleys respectively to said frame members to which said cables are connected so that the one counter-weight is connected through said cables to both of said frame members for counterbalancing the weight of the latter and the spring carried thereby.
  2. 3
    3,665,527 counterweight and extending around the additional pulleys to the second pair of frame members to which the second pair of cables are connected, so that a second spring carried by the second pair of frame members and the latter are counterbalanced by the second counterweight which is situated in the 5 other of said columns. 3. The combination of claim 2 and wherein there are three pulleys at the top of each column, one for guiding a cable from a counterweight to an adjoining frame member, the second for guiding a cable from the other column to an adjoining frame member, and a third for directing a cable from one to the other of the columns.