Abstract:
A device for controlling the winding rate of a rotary roller for a mesh is provided to increase and decrease the winding rate of a rotary roll quickly, quietly and conveniently and to extend the service life of a device without increasing mechanical friction between components by controlling the elasticity of a distortion spring using a worm gear and controlling the winding rate of a rotary roller. A device for controlling the winding rate of a rotary roller for a mesh contains a casing(1), a rotary roll(2) installed to the outside of a shaft seal installed in the casing to wind up or unwind a mesh(A) in the casing, a shaft seal(3) and a distortion spring installed to rotate the rotary roll elastically, a bearing(4) coupled with one end of the shaft seal and provided with a coupling hole(42) having a pair of key grooves(41), a worm wheel(5) provided with distortion gear teeth(51) to abut on a stopping plate(8) rotatively, a worm(6) formed in the longitudinal middle of the operating bar and provided with spiral gear teeth(61) to engage with the distortion gear teeth of the worm wheel, an operating bar(7) exposed to the front of the casing via a through-hole(11) and operated together with the worm wheel and the worm to rotate the shaft seal coupled with the bearing and to control the elasticity of the distortion spring, and a stopping plate(8) provided with a fitting groove(81) to set to a fitting disk(52) of the worm wheel to rotate the bearing and the shaft seal together with the worm wheel freely and many coupling screws(83) to fix on one end of the casing via holes(82).
Abstract in simplified Chinese:一种缓冲设备(10)具有一可固定于一轨道(4)中之机体(11),一用于缓冲之阻尼组件(12),及一扣持弹簧(13)系用于扣持一导引于轨道(4)中并且用以承载及导引可滑动翼型组件(2)的运动机构(6),其中缓冲设备(10)之至少大约呈U形之机体(11)系由一金属组件冲压且弯曲而形成且具有一借由一主要部件(20)而互相连接之第一及第二翼(14;18),该主要部件之舌状延伸部形成用以扣持运动机构(6)之扣持弹簧(13)。翼型物(14;18)之端件(17、19、26;17*、19*)系配置于适合扣持阻尼组件(12)。该缓冲设备(10)可藉符合成本效益之方法由一单一金属板制作再加上一阻尼组件(12)即可完成。由于扣持弹簧(13)系缓冲设备(10)之机体(11)的一部,因此该设备系具有高度稳定性。
Abstract:
A hinge including: a first leaf assembly accommodating a portion of a first panel having a first cut-out section, the first leaf assembly including a first insert component which is tight fittingly receivable within the first cut-out section; a second leaf assembly, hingedly coupled to the first leaf assembly, for accommodating a portion of a second panel having a second cut- out section; one or more biasing components to bias the hinge toward a closed position; and a dampener to slow movement of the first and second leaf assemblies to the closed position, a first portion of the dampener is located within the first insert component and a second portion is configured to at least partially retract within the first insert component when coming into contact with the second leaf assembly during movement, a second portion of the dampener extends and retracts along an axis coplanar with the first panel.
Abstract translation:一种铰链,包括:容纳具有第一切口部分的第一面板的一部分的第一叶片组件,所述第一叶片组件包括第一插入部件,所述第一插入部件紧配合地容纳在所述第一切口部分内, out section; 第二叶片组件,所述第二叶片组件铰接地联接到所述第一叶片组件,用于容纳具有第二切口部分的第二面板的一部分; 一个或多个偏置部件,以将所述铰链朝关闭位置偏置; 以及阻尼器,用于减慢第一叶片组件和第二叶片组件向闭合位置的移动,阻尼器的第一部分位于第一插入部件内,并且第二部分构造成当进入时第一插入部件内至少部分地缩回 在运动期间与第二叶片组件接触,阻尼器的第二部分沿着与第一面板共面的轴线延伸和缩回。 p>
Abstract:
A hinge with first and second leaves. Bearing sleeves are attached along an edge of the first leaf and a bearing sleeve is attached along an edge of the second leaf. A hinge pintle is sized to extend into each of the apertures for mating engagement with the bearing sleeves and connect the hinge leaves for rotation. With an elastomeric member fastened between the first hinge leaf and a cover plate, and between the second hinge leaf and another cover plate, as one leaf is rotated, the member stretches and provides a force to urge the leaf to rotate.
Abstract:
A spring force indicator for a door closure having a spring force spring force adjuster comprises a drive wheel coupled to the spring force adjuster for rotation therewith and a driven wheel. The driven wheel includes a disc and a post extending from the disc, the post being disposed in a bore formed in a front surface of the door closure and adapted to engage the drive wheel for rotation therewith. The disc further includes first indicia. A cover includes a base wall and a cylindrical sidewall depending from the base wall, the cover being disposed on the end of the door closure and configured to cover the drive wheel and the driven wheel. The cover includes a central aperture for receiving the spring force spring force adjuster, a second aperture disposed between the central aperture and the sidewall, and second indicia disposed around the second aperture. The first indicia is visible through the second aperture, and the first indicia cooperates with the second indicia to indicate a measure of spring force.
Abstract:
A closures mechanism for a door actuated during a fire, which causes the door to automatically close. The present invention provides a hinge with opposing hinge plates comprising a door leaf and a frame leaf each pivotal around a hinge pin and spring. A hinge spring nub is anchored within a channel having a fusible block that prevents the spring nub and tension from traveling the channel. At a predetermined temperature the fusible block ruptures causing the spring nub and spring tension to move into engagement with the door attached to the hinge door leaf thereby causing the door to close by means of the tensioned spring's kinetic energy.
Abstract:
A door closer comprising a drive spindle which is operably connected to a first spring configured to apply a first closing torque to the drive spindle, wherein the drive spindle is also operably connected to a second spring configured to apply a second closing torque to the drive spindle, wherein the connection between the first spring and the drive spindle is independent from the connection between the second spring and the drive spindle, and wherein variation of the first closing torque as a function of drive spindle orientation is different from variation of the second closing torque as a function of drive spindle orientation.
Abstract:
A hinge (11) for fireproof doors associated with a second hinge (10) which automatically closes fireproof doors by means of a torsion spring, wherein the hinge (11) comprises a frame- side portion and a door- side portion, equipped with respective tubular sections which, aligned with each other, define a housing seat of a hinging group which comprises a cam force regulator group (23, 31, 50, 57). The cam force regulator group comprises a cam block (50) facing a ball -holder body (57) which houses a pair of balls (54), the cam block (50) comprising a surface facing the balls (54) provided with a double half-groove (53). Each half -groove (53) comprises a first portion ascending towards an apex (55) for a first angle and a second portion descending from the apex for a second angle, the angles extending for a total of 180° so that, in a return phase of the door, the loading of the spring (61) is opposed to the return force of the torsion spring of the second hinge (10) along the second angle and is added to said return force along the remaining first angle).
Abstract:
Hinge assembly (1) for household appliances (2) having an horizontally-pivoted front door (4), and which comprises: a first coupling element (6) structured for being firmly fixed to the household appliance casing (3); a second coupling element (7) structured for being firmly fixed to the front-door body (4), and which is pivotally jointed to the first coupling element (6) so as to be able to rotate about a given articulation axis (R), between a first working position wherein the front door (4) is arranged in the raised position, and a second working position wherein the front door (4) is arranged in the completely lowered position; and a door-weight balancing device (9) which is interposed between the first (6) and the second coupling element (7) and is structured to elastically hamper rotation of the second coupling element (7) at least from the first to the second working position; the door-weight balancing device (9) in turn comprising a supporting rod (10) which extends in sliding manner through a supporting portion (11) of the first coupling element (6); a compression-preloaded elastically-deformable member (12) which is fitted to the supporting rod (10) so as to have a first end (12a) firmly fixed to the distal end (10a) of the supporting rod (10) and a second end (12b) in abutment against the supporting portion (11) of the first coupling element (6); a linking mechanism (13) which connects the proximal end (10b) of the supporting rod (10) to the second coupling element (7), so that the supporting rod (10) is axially moved to further compress the elastically-deformable member (12) when the second coupling element (7) rotates from the first to the second working position; and finally an adjustable spacer element (14) which is interposed between the second end (12b) of the elastically-deformable member (12) and the supporting portion (11) of the first coupling element (6), and it is structured so to allow a manually-operated adjustment, between a lower value and a higher value, of the distance (h) between the second end (12b) of the elastically-deformable member (12) and the supporting portion (11) of the first coupling element (6), thus varying the compression preload of the elastically-deformable member (12) fitted on the supporting rod (10).
Abstract:
A door closer with a control unit is disclosed. The control unit (110) for the door closer (90) includes a drive gear (302) configured to rotate in response to movement of a door, and a chain (308) arranged to cooperate with the drive gear. Various operating characteristics of the door closer can be varied using control circuitry (540). These operating characteristics include latch region parameters for the door. The control unit can include a teach mode a user interface used to determine an installation configuration for the door closer, a position sensor (340, 342) to determine a position of the door, and at least one input switch (2704, 2706, 2710, 2712, 2720) to enable user selection of at least one door closer parameter for an installed door closer. The door closer can also include a calibration mode.