摘要:
An apparatus for carrying and transporting loads over a surface comprises: a supporting platform; a flexible damping ring fixed to the supporting platform along a circular closed-loop line of contact and defining a chamber adapted for inflation upon introduction of a pressurized medium; an uplift chamber defined between the supporting platform, the surface and an interior wall portion of the damping ring, the interior wall portion of the damping ring forming a lateral partition between the chambers during operation and the damping ring having at least one aperture enabling fluid communication between the chambers; and, the interior wall portion of the damping ring being stretchable and the remaining wall portions of the damping ring being substantially unstretchable, whereby introduction of the pressurized medium will effect inflation of the damping ring and pressurization of the uplift chamber, the pressurized medium escaping from the uplift chamber as a fluid film of substantially uniform thickness and pressure between the damping ring and the surface, notwithstanding movement of the apparatus over uneven and irregular surfaces. The apparatus may also comprise an annular disc fixed interiorly of the damping ring chamber at a uniform distance from the supporting platform, the disc having an outer circumference extending outwardly at least as far as does the closed-loop line of contact. The apparatus may further comprise a connecting chamber bounded at least partly by the supporting platform and forming a fluid interconnection between the damping ring chamber and the uplift chamber.
摘要:
A controller operative to adjust the supply of compressed air to aircushions, in response to changes in load, includes a pneumatically-driven pressure regulator and damped means to accumulate or vent control pressure in response to a sensed distance between the carrier frame and a gliding surface.
摘要:
The invention relates to a toothpaste tube having a holding means (10, 12, 16, 20, 23, 24, 25, 27, 32) which is attached to it for holding at least one interdental toothbrush (13).
摘要:
An adjustment device is provided for use with a pelvis and/or lordosis support arranged in a back support connectable with a seat. The adjustment device contains an axially movable, threaded spindle (2) guided in a housing (1), a threaded ring (4), and an adjustment handle (3), and the housing (1) and the threaded spindle (2) each have an axial, central bore (6, 7) for passing through the cable line (9) of a Bowden-cable arrangement (10). The bores (6, 7) are aligned with each other, whereby the central bore (6) in the threaded spindle (2) has ha hollow space directed at the adjustment handle (3) for inserting and holding a nipple (14) of the one end of the cable line. Provision is made in the side wall of the housing (1) for a radial opening (11), and in the side wall of the threaded spindle (2) for a cross bore (12) ending within the zone of the holding of the nipple (14). The radial opening (11) and the cross bore (12) are aligned with each other in a mutual position of the housing (1) and the threaded spindle (2), forming a passage with a diameter permitting the nipple (14) to pass through, whereby the opening (11) and the cross bore (12) are each connected with the central bores (6 and 7, respectively) by a slot (15 and 16, respectively) permitting the passage of the cable line (9).
摘要:
An adjustable lumbar support assembly for a seat has a curved lumbar support member that is made from a plastic material and an adjustment mechanism operatively connected to the curved lumbar support member for adjusting between various degrees of curvature. The curved lumbar support member may include a plurality of reinforcing ribs that allow a greater degree of curvature adjacent one end of the element than the degree of curvature adjacent the other end of the element. The reinforcing ribs allow for varying degrees of curvature because the cross section of the ribs varies. Further, the reinforcing ribs are integral with the curved lumbar support member. The adjustable lumbar assembly could also include at least one resilient metal strap connected to the curved lumbar support member that allows a greater degree of curvature adjacent one end of the curved lumbar support member than the degree of curvature adjacent the other end of the element.
摘要:
The invention relates to an apparatus for adjusting the arching of a resiliently flexible support element for supporting the pelvic and/or lumbar vertebrae in a back rest of a seat including an arching means. According to the invention, a flexible support element is suspended in a seat by multiple guide rods, and a Bowden cable is connected to the support element in such a manner as to arch the support element when traction is applied thereto. A restoring spring draws the support element from its arched position. An intermediate spring is used in combination with the Bowden cable such that the support element resiliently yields to major pressure. Another spring provides compensating forces to counteract the arching adjustment, thereby substantially reducing the force to be exerted in order to adjust the degree of arching.
摘要:
The invention relates to a support with adjustable arch, especially a lumbar support for seats, in particular motor vehicle seats and chair back rests as well as for any type of bed, the structure of which comprises an arching element and an adjustment device for setting and readjusting the arching of the arching element.
摘要:
This invention relates to an apparatus and method for providing a massage especially to the back areas of persons who have to sit for a relatively long time on seats, especially motor vehicle seats. The massage is achieved in accordance with the invention by a periodic or a continuous motion of massage elements placed in the seat surface and/or in the back rest. The massage elements are able to move in a forward and backward direction and an up and down direction with respect to the seat. The apparatus includes a supporting element formed of a flexible material that is positioned on a frame of the seat, a drive mechanism, a mechanism operatively connected to the drive mechanism to cause at least a portion of the supporting element to be bowed to provide movement of the supporting element in a direction toward and away from a person seated on the seat for the purpose of supporting body surfaces of the person on the seat. The supporting element includes massage elements, a control mechanism to drive the supporting element vertically and in a bowing movement to cause at least a portion of the supporting element to move forwardly and rearwardly all with respect to the seat whereby the massage elements are caused to moved to along in at least two directions at the same time.
摘要:
An anatomically deformable support and, in particular, a lordosis support, is provided for use with seats, couches or the like. The anatomically deformable support includes a frame, and an anatomically deformable supporting part connected to the frame and that can be arched in the reversible manner. The supporting part is connected to the frame by a connection arrangement including elongates cylindrical members, for example, wires, secured to the frame and first and second mounting arrangements provided at first and second end portions of the supporting part for securing the elongate cylindrical members to the supporting part. At least one of the mounting arrangements includes a first common rigid web member, and a pair of elastically flexible web members arranged on opposing sides of the rigid web member to form first mountings in which the elongate cylindrical members are received. The mounting arrangements are especially designed to prevent the elongate cylindrical members from gradually sliding out of the mountings.
摘要:
The invention relates to an adjusting device for an adjusting element which is arranged on a shaft, can be adjusted as desired in both directions of rotation by means of a drive and can be locked in any set position. The device has two jaws which can be moved together in a housing by means of the drive and, at least one end, are each in zero-play contact with an arm of a scissors-type arrangement, the opposing arms of the scissors-type arrangement being in zero-play contact with an output drive element which is rotatably mounted and connected to the adjusting element.