Abstract: The present disclosure relates to a height-adjustable sink. According to an aspect, the height-adjustable sink includes: a main body; an upper plate provided above the main body; at least one connecting member connected to the main body and the upper plate to adjust the height of the upper plate with respect to the main body; and a holding unit configured to maintain the height of the upper plate in a state in which the height of the upper plate is adjusted.

Abstract: A height-adjustable desk includes a base, a top board, a link mechanism, a height-adjusting member, and an operating member. The top board is configured to be vertically elevated with respect to the base. The link mechanism is disposed between the base and the top board so as to support the top board such that the top board may be elevated, the link mechanism including a plurality of link members. The height-adjusting member is formed to be extendable at a desired length and determining a height of the top board with respect to the base according to a length thereof. The operating member fixes the height-adjusting member so that the height-adjusting member maintains the desired length.

Abstract: Disclosed is a height-adjustable bed including: a base; a support frame placed on an upper surface of the base; a mattress stably placed on an upper surface of the support frame; and a height adjusting device connected to the support frame and the base to adjust the height and tilt of the support frame, wherein the height adjusting device includes a gas spring or a spring lever to manually adjust the height of the support frame.

Abstract: The present invention relates a height-adjustable desk including: a base; a top board provided so as to be vertically elevated with respect to the base; a link mechanism disposed between the base and the top board so as to support a top board such that the top board may be elevated and including a plurality of link members; a height-adjusting means formed to be extendable at a desired length and determining the height of the top board with respect to the base according to a length thereof; and an operating means for fixing the height-adjusting means so that the height-adjusting means maintains the desired length.

Abstract: Disclosed is a motor brake structure including: a rotor; a rotor axis relatively fixed to the rotor; a soft material brake having a central portion thereof into which the rotor axis is inserted, the soft material brake rotating identically with the rotor axis; and a case formed at an outer side of the brake, wherein the soft material brake has a base part having a mortise into which the rotor axis is inserted; a flexible part circularly extended from an end of the base part; and a friction part extended from an end of the flexible part, having a friction surface formed at an outer circumference thereof, and large-sized relative to at least the flexible part.