Abstract: A support mechanism in which one end of a knee bottom section (2) is supported on a bed frame (1) in such a manner that the knee bottom section can be pivotally raised and lowered. Also, one end of a leg bottom section (6) is pivotally rotatably connected with the other end of the knee bottom section, a support stay (7) is pivotally rotatably connected with the underside of the other end of the leg bottom section, and a support device (11) of a support portion (9) provided at the opposite tip of the support stay is provided on the bed frame. The support device includes a guide portion (12) and an engaging portion (13) for movably supporting the support portion of the support stay. The guide portion can support the support portion moved in relation with the pivotal rotation of the knee bottom section within the entire pivotal rotation range of the knee bottom section.

Abstract: An X-linked lift mechanism having first links (3) and second links (4) constituting an X-linked mechanism between a base frame (1) and a lift frame (2). A drive member (11) is pivotally rotatably installed between the other lateral side portions of the second links and is connected with boost arms (12) and a drive arm (13). Guide members (15) are provided for guiding the moving members (14) installed at the ends of the boost arms. The guide members are installed on the other lateral side portions of the first links in the length direction. Also, a linear actuator is provided so as to extend between the other lateral side of the first links and the drive arm.

Abstract: In the conventional X-linked lift mechanism, in the state where the lift frame is lowered, lift drive components occupy a wide area. Therefore, it is difficult to additionally dispose other functional mechanism components. Further, in the configuration wherein the lift frame is raised when the linear actuator acts in the direction to shorten itself, if the linear actuator is broken, the lift frame may drop dangerously.

Abstract: In the conventional support mechanism capable of supporting the distal end of the leg bottom section at either a high position or a low position in the state where the knee bottom section is pivotally raised, the distal end of the leg bottom section that is set at the high position can be shifted to the low position only in the state where the knee bottom section is kept pivotally raised. If the knee bottom section is pivotally lowered in the state where the distal end of the leg bottom section is set at the low position, the distal end of the leg bottom section is forcedly released from the mechanical engagement for the low position and shifted to the mechanical engagement for the high position.

Abstract: The invention relates to a silk velvet textile and the method of manufacturing the same. Spun silk or pure silk is worked on an ordinary pile loom or knitting machine to produce a silk textile having the luster, touch or texture characteristic of silk so that such textile can be used for wide variety of velvet goods to meet the consumers' needs for upmarket products. Spun silk or pure silk is subjected to a twisting process to be followed by a pasting process or steaming process for 10 to 20 minutes before feeding said spun silk or pure silk is worked on by an ordinary pile loom or knitting machine. The texture such as fabric or jersey is dipped in lukewarm water for a predetermined period of time to remove paste for the texture to shirink such that the shrinking texture ground fastens the piles.