4517results about "Building braking devices" patented technology

A buffering hardware hinge outside a cup comprises a hinge cup and a hinge arm, the hinge cup and the hinge arm are connected in a hinged mode through an upper connecting rod and a lower connecting rod, a guide groove penetrating through a body is formed in the bottom of the hinge cup, and a driving plate is installed at the outer bottom of the hinge cup in a covering mode; a sliding block is arranged on the top of the driving plate and installed in the guide groove in a sliding mode. The end, facing the hinge cup, of the upper connecting rod extends outwards to form a driving arm, and when the hinge is closed, the driving arm acts on the sliding block to push the sliding block to slide in the guide groove; a buffer is fixedly mounted at the outer bottom of the hinge arm, a piston rod or a cylinder body part of the buffer is connected with the driving plate, and the buffer has a damping effect on the movement of the driving plate, so that the damping effect when the hinge is closed is realized. The device has the beneficial effects that the buffer is installed outside the hinge arm, through the design of the guide groove and the driving plate, the external space is effectively utilized, and the problem that the internal space is limited is avoided.

A door management system on an aircraft includes a fuselage extending along a longitudinal axis in a fore-aft direction parallel to forward flight, an opening in a sidewall of the fuselage, a door mounted on the sidewall to slide in the fore-aft direction between a closed position covering the opening and an open position revealing the opening, a cable attached to the fuselage and the door and a speed governor operatively coupled to the cable to limit a velocity of the door as it moves between the open position and the closed position.

A furniture drive can move a furniture part movably supported relative to a furniture carcass. The furniture drive includes a housing configured to be at least partially received within a recess of a furniture panel of the furniture carcass in a mounted condition, and an actuating arm arrangement for moving the movable furniture part. A cover is provided on the housing of the furniture drive, and the cover has at least one laterally protruding, substantially hoop-shaped flange.

A hinge includes a hinge body, a self-close mechanism disposed within the hinge body, and a slow-close mechanism disposed within the hinge body. The hinge body has a first portion and a second portion, the first portion is rotatable with respect to the second portion between an open position and a closed position. The self-close mechanism applies a closing force on the first portion from a first angle of rotation between the first portion and the second portion to the closed position, the closing force urging the first portion to the closed position. The slow-close mechanism applies a damping force on the first portion from a second angle of rotation between the first portion and the second portion to the closed position, the damping force slowing a rotational speed of the first portion to the closed position.

A head unit system for controlling an object includes a head unit device that include shear thickening fluid (STF) and a chamber configured to contain the STF. The chamber further includes a set of gates between a front channel and a back channel. The set of gates includes a bypass opening set. The head unit device further includes a piston housed at least partially radially within the chamber. The set of gates is configured to control flow of the STF between the front channel and the back channel to control rotational movement of the object. An accessory module assists in control of the object.

Hydraulic damper(1000) for furniture doors or drawers. Damper(1000) comprises housing(1) having a closed first end(14) and a second end provided with lid(7); and piston(2) movable in housing(1) along longitudinal piston axis(A). Piston(2) defines first and second chambers(11,12) inside housing(1), respectively at first and second end-sides of piston(2). Piston(2) comprises circumferential groove(24) defined between circumferential first and second shoulders(241,242). Groove(24) is provided with annular collar(5) axially movable between first and second shoulders(241,242). Collar(5) is formed from elastic material to reversibly contact inner surface(13) of housing(1) when radially expanded when subjected to hydraulic-pressure forces parallel to axis(A). First shoulder(241) is arranged allowing hydraulic fluid to flow on collar(5) when collar(5) contacts first shoulder(241). Second shoulder(242) is arranged blocking hydraulic fluid from flowing on collar(5) when collar(5) contacts second shoulder(242). Piston(2) is provided with channel(21) arranged to provide fluid flow communication between first and second chambers(11,12).

A head unit system for controlling an object includes a head unit device that include shear thickening fluid (STF) and a chamber configured to contain the STF. The chamber further includes a set of gates between a front channel and a back channel. The set of gates includes a bypass opening set. The head unit device further includes a piston housed at least partially radially within the chamber. The set of gates is configured to control flow of the STF between the front channel and the back channel to control rotational movement of the object. An accessory module assists in control of the object.

The present invention relates to a structurally novel eccentric cam action door closer for a glass door. The matching of the first and second rollers on the piston pressing assembly with the eccentric cam on the cam shaft realizes the door closer stably keeps the door in the opened or closed state. When the door is clockwise opened in place, the first roller is embedded in the first opening arc recess, thereby fixed to the eccentric cam. When the door is counterclockwise opened in place, the second roller is embedded in the second opening arc recess, thereby fixed to the eccentric cam. When the door is closed in place, the first and second rollers are embedded in the first and second closing arc recesses, thereby fixed to the eccentric cam. Thus, the cam shaft is stopped from rotating, achieving door angle fixing effect and stopping the door.

The present invention relates to a novel cam action hydraulic door closer wherein gear and rack structure is excluded, that greatly simplifies the structure and volume of the door closer. The bidirectional piston is consistently flexibly abutted against the outer peripheral surface of the transmission camshaft by the drive spring. The transmission camshaft, when working, drives the bidirectional piston to tightly press the drive spring, making it store force. Meanwhile, the overload valve realizes hydraulic oil flowing between the main shaft chamber and the spring chamber. Therefore, during the door closer housing rotates, the transmission camshaft receives the damping effect from the bidirectional piston and the hydraulic oil, lowering the transient door closing speed, so that the cam action hydraulic door closer achieves sufficient buffering when the door closes. The present invention has simple structure, convenience in assembly, high production efficiency, low failure rate and stable performance.

The invention discloses an electric fuel tank lock, and relates to the technical field of electronic locksets, the electric fuel tank lock comprises a lock body seat and a spring bolt movably mounted on the lock body seat, the lock body seat is provided with a first limiting piece, and the spring bolt is provided with a limiting space matched with the first limiting piece; the first buffering piece is movably installed on the spring bolt and comprises a first cohesion part, a second cohesion part is arranged on the spring bolt, the first cohesion part and the second cohesion part are installed in a cohesion mode, and the first buffering piece moves to drive the spring bolt to move. According to the electronic control oil tank lock, the first buffering piece is arranged on the spring bolt, the first buffering piece achieves the buffering function through the elastic piece, it is guaranteed that the electromagnetic valve can be conducted at the first time under the condition of rapid unlocking, and the phenomenon that unlocking is abnormal due to the fact that a traditional electronic control oil tank lock is operated too fast is optimized.

A one-way braking hinge capable of self-aligning a shaft and a one-way clutch is provided. The one-way braking hinge (10) includes a first leaf (1), a shaft (3) rotatably supported by the first leaf (1), at least one resistance part (4) that resists rotation of the shaft (3), a second leaf (2) rotatably coupled to the shaft (3), a one-way clutch (12) into which the shaft (3) is inserted, and a position adjusting member (11) to which the one-way clutch (12) is fixed. The position adjusting member (11) is position-adjustably coupled to the second leaf (2).

A hinge comprising: a first hinge member (110) comprising a cylinder barrel (117) having a longitudinal direction (118); a second hinge member (111) pivotably mounted on the first hinge member (110); and a dashpot interposed between said hinge members (110, 111) and configured for damping a closing movement of said closure member. The dashpot comprises a closed cylinder cavity formed within the cylinder barrel (117); a damper shaft (124) which extends into the cylinder cavity and is connected to the second hinge member (111); and a piston (147) within said cylinder cavity. The hinge members (110, 111) are made of a synthetic material and the damper shaft (124) is made of metal.

A damping device includes a cylinder having a damping fluid, and a piston to be actuated via a piston rod and movable through the damping fluid during a damping stroke. A flow channel allows the damping fluid to pass through the piston during the damping stroke. A control piston is mounted in / on the piston to be movable, and a cross section of the flow channel is changeable by a movement of the control piston relative to the piston. A force accumulator can move the control piston relative to the piston with a return force counteracting a flow force exerted by the damping fluid on the control piston during the damping stroke. A control aperture allows a pressure drop proportional to the flow force and the speed of the piston to occur, and a target speed for the piston is dependent on a position of the piston relative to the cylinder.

A device for assisting the opening and closing of a door in a structure. The device may comprise: a door shaft configured to rotate about a longitudinal axis thereof in both a first direction and in a second opposite direction, and configured to be mounted to the structure to form a hinge about which the door may rotate in the both the first and second directions relative to the structure; a first actuator linked to the door shaft and configured to control a speed of rotation of the door shaft in the first direction; and a second actuator linked to the door shaft and configured to drive rotation of the door shaft in the second direction. The second actuator is an electromechanical actuator.

The present invention relates to a 360-degree rotational cam hydraulic door closer for a narrow frame door. The cam shaft is 360-degree rotatably supported in the door closer housing. The matching of the damping roller rotationally disposed on the bidirectional piston with left and right closing arc recesses on the outer peripheral surface of the eccentric cam keeps a closed status when the door is rotated to 0°, 180° and 360°, wherein the damping roller is embedded in the left or right closing arc recess, fixed relative to the eccentric cam, achieving door angle fixing and door stopping. The cam shaft receives the damping effect generated from the damping roller to the eccentric cam, that lowers the transient door opening and closing speed, achieving sufficient buffering. The open angle of 0°-360° is realized, which meets revolving doors' requirement, facilitating the door to be opened to both sides.

A working machine includes a machine body, tank(s) provided in the machine body and including a fluid supply port, a cover body to cover the tank, the cover body including a main wall portion and an opening provided in a portion of the main wall portion to expose the fluid supply port, a fluid supply port cover to open and close the opening, and a hinge to support the fluid supply port cover in a rotatable manner. The hinge includes an abutting portion to abut on an abutted portion at an opening peripheral edge portion that is a peripheral edge portion of the opening of the cover body or in a vicinity of the opening peripheral edge portion from an inner side of the machine body, to limit rotation in an opening direction of the fluid supply port cover when the fluid supply port cover is rotated and opened.

A piece of furniture includes a furniture body with an upper floor, a flap, and least one flap fitting arranged on the upper floor in order to hold the flap movably between a position closing a storage space of the furniture body and an opening position. The flap fitting includes a housing, on which a support arm is rotatably mounted, which includes a retaining element for fixing the flap, and an energy store for applying a force to the support arm. A damper is provided for braking a movement of the support arm in the closing direction shortly before the closing position is reached. The damper can be moved via an actuating element mounted in the housing and the support arm can be braked via the actuating element when the flap is moved in the closing direction shortly before reaching the closing position.

A piece of furniture includes a furniture body with an upper floor and a flap, and at least one flap fitting being arranged on the upper floor in order to hold the flap movably between a position closing a storage space of the furniture body and an opening position. The flap fitting includes a housing, on which a support arm is rotatably mounted, which includes a retaining element for fixing the flap, and an energy store, by means of which a force can be applied to the support arm, the support arm being articulatedly connected to a drive lever, which is articulatedly connected to a deflection lever. An opening limiter is provided between the drive lever and the deflection lever, by means of which the maximum opening position of the support arm can be adjusted. This allows the flap fitting to be flexibly adapted to the respective installation position.

A braking device for a driveable part includes a driveable loading device which can be brought into radial contact with the driveable part having a first holding position and a second releasing position. At least one breaking member of the holding position bears frictionally against a radial circumference of the driveable part and secures the driveable part against rotation with a pre-settable force. The releasing position of the braking member permits a freewheeling of the driveable part. The loading device is adjustable between the holding position and the releasing position. The driveable part is coupled to an at least one permanent brake. A braking torque of the holding position of the permanent brake acts on the driveable part. The releasing position of the driveable part is freely rotatable with the permanent brake.

An actuating apparatus (1) for opening and closing a cover in or on a vehicle, having a locking and / or arresting kinematics that cooperate with the cover. The actuating apparatus includes a housing (2) and an actuating part (3) received in the housing (2) and movably supported relative to the housing (2). The actuating part (3) cooperates with the cover in such a way that the actuating part (3) performs a movement relative to the housing (2) between a first position and a second position upon a movement of the cover between a closed position and an open position, wherein, in the first position, the actuating part (3) is in a locked state. The actuating apparatus (1) further includes an elastically deformable spring system (4) associated with the actuating part (3), in particular having a progressive spring characteristic.

The invention discloses a hinge with a self-closing function, and belongs to the field of hinges, the hinge comprises a door support, a cabinet support, four connecting pieces and a self-closing assembly, a driving piece is rotatably mounted on a second connecting piece, a guiding piece is movably mounted on a fourth connecting piece, a guiding column is located in a guiding groove, and two ends of an elastic piece are connected with the fourth connecting piece and the guiding piece respectively; when the hinge is in an open state, the guide column of the second connecting piece abuts against the end of the guide groove so that the elastic piece can be kept in a stretching state. When the hinge moves from the open state to the critical state, the driving piece abuts against the abutting face to drive the guiding piece to move relative to the fourth connecting piece till the driving piece abuts against the protruding teeth. When the hinge moves from a critical state to a closed state, the driving piece crosses the convex teeth to fall into the groove, the elastic force of the elastic piece drives the hinge with the self-closing function to move to the closed state, the abutting face, the groove, the convex teeth and the guide groove are integrated on one part of the guide piece, the number of hinge parts is small, the overall structure is simple, and the size is small.

To provide a novel cam action hydraulic door closer particularly, in a technical field of a door closer.SOLUTION: Omitting a gear and a rack structure greatly simplifies the structure and volume of a door closer. A bidirectional piston always abuts in an elastic manner on an outer circumferential surface of a transmission camshaft through a driving spring. When the transmission camshaft operates, the bidirectional piston moves in conjunction therewith, the driving spring is compressed, and the driving spring stores force. At the same time, an overload valve realizes a circulation of hydraulic oil between a spindle chamber and a spring chamber. Therefore, when the transmission camshaft rotates in a door closer housing, the bidirectional piston is subjected to damping effect on the transmission camshaft and the damping effect of hydraulic oil. This reduces the instantaneous speed when the door is closed, and a new cam action hydraulic door closer provides a sufficient cushioning effect when the door is closed. In this way, the new cam action hydraulic door closer of the present invention has the advantages including simple structure, easy assembly, high production efficiency, low failure rate, and stable performance.SELECTED DRAWING: Figure 1

A fluid damper is provided including a cylinder filled with a damping fluid, a piston base body shiftably guided in the cylinder along a stroke axis, and a valve disk spaced apart from a shell wall of the cylinder. The piston base body divides an inner space of the cylinder into a front space and a rear space along the stroke axis. In the piston base body, there is at least one channel connecting the front space to the rear space in a fluid-conducting manner. The valve disk is shiftably guided along the stroke axis between an opening position unblocking the at least one channel and a closing position closing the at least one channel. The valve disk has a central area extending radially outward from the stroke axis, the central area being free of apertures.

The present invention belongs to the technical field of door closers, and particularly relates to an eccentric cam action door closer for a glass door, which is novel in structure. The door body of the door is installed on the housing (100). By the matching of the first roller (410) and second roller (420) equipped on the piston pressing assembly (400) with the eccentric cam (210) on the cam shaft (200), it is realized that the door closer stably keeps the door in the opened or closed state. When the door is clockwise opened in place, the first roller (410) is embedded in the first opening arc recess (240) and thereby fixed relative to the eccentric cam (210). When the door is counterclockwise opened in place, the second roller (420) is embedded in the second opening arc recess (250) and thereby fixed relative to the eccentric cam (210). When the door is closed in place, the first roller (410) and the second roller (420) are embedded in the first closing arc recess (220) and the second closing arc recess (230) respectively and thereby fixed relative to the eccentric cam (210). Thus, the cam shaft (200) is stopped from continuing rotating in the housing (100), achieving the effect of fixing the door opening and closing angle in a stuck point positioning manner, at last achieving the purpose of positionally stopping the door, that has high reliability.

The utility model discloses a sliding wheel assembly and a door and window system comprising the same. The pulley assembly includes: a housing; the first inner shell is vertically and movably connected to the outer shell; the second inner shell is vertically and movably connected to the outer shell; the first pulley is arranged in the first inner shell; the second pulley is arranged in the second inner shell, and the first pulley and the second pulley are used for sliding along the track; the damping assembly comprises a first shifting block, a second shifting block and a damping tube, the first shifting block and the second shifting block are rotationally connected to the two ends of the damping tube respectively, the first shifting block is slidably connected to the first inner shell, and the second shifting block is slidably connected to the second inner shell. Therefore, the height positions of the first shifting block, the second shifting block, the first pulley and the second pulley can be adjusted, so that the first shifting block and the second shifting block can be ensured to be stably matched with the check block in the track when the door body and the track are inclined, and the first pulley and the second pulley can be ensured to stably slide along the track.

The invention relates to the technical field of hardware fittings, in particular to a crabapple angle hinge which comprises a fixed seat fixed to the side of a cabinet body and a movable seat fixedly installed on the side of a door plank, a main hinge arm is installed on the fixed seat in a hinged mode through a first pin shaft, and the other end of the main hinge arm is connected with a first sliding block. The first sliding block slides in a first sliding groove in the movable base. A receding groove is formed in the middle of the main hinge arm in a hollowed-out mode, the receding groove is hinged to the middle of the auxiliary hinge arm through a second pin shaft, one end of the auxiliary hinge arm is hinged to the movable base through a third hinge shaft, the other end of the auxiliary hinge arm is hinged to a second sliding block, and the second sliding block slides in a second sliding groove in the fixed base. The main hinge arm and the auxiliary hinge arm swing relative to the fixed base and the movable base, and opening and closing of the hinge are achieved.

The embodiment of the invention relates to the technical field of electronic equipment, and provides a compliant constant-rigidity mechanism, a rotating shaft device and terminal equipment. The compliant constant-rigidity mechanism comprises at least one sheet-shaped compliant constant-rigidity body; the flexible constant-rigidity body comprises a first force exerting part, a second force exerting part spaced from the first force exerting part, and a deformation part located between the first force exerting part and the second force exerting part and connected to the first force exerting part and the second force exerting part. The side, back to the deformation part, of the first force exerting part is used for being connected with an external object, and the side, back to the deformation part, of the second force exerting part is used for being connected with the external object. The deformation part, the first force exerting part and the second force exerting part are located in a first plane, and the deformation part can elastically deform in the first plane. Compared with the prior art, the flexible constant-rigidity body provided by the embodiment of the invention is of a sheet structure, and compared with a spring, the flexible constant-rigidity body can provide larger elastic force under the condition of the same thickness, so that the light and thin design of the applied device is facilitated.

The present invention belongs to the technical field of door closers, and particularly relates to a novel cam action hydraulic door closer wherein gear and rack structure is excluded, that greatly simplifies the structure and volume of the door closer. The bidirectional piston (200) is consistently flexibly abutted against the outer peripheral surface of the transmission camshaft (300) by the drive spring (400). The transmission camshaft (300), when working, drives the bidirectional piston (200) to tightly press the drive spring (400), thereby realizing the force storing of the drive spring (400). Meanwhile, the overload valve (500) realizes hydraulic oil flowing between the main shaft chamber (111) and the spring chamber (112). Therefore, during the rotation of the door closer housing (100), the transmission camshaft (300) receives the damping effect generated from the bidirectional piston (200) to the transmission camshaft (300) and the damping effect of the hydraulic oil, that lowers the transient door closing speed, thereby realizing that the cam action hydraulic door closer achieves sufficient buffering when the door closes. It can be seen that the cam action hydraulic door closer of the present invention is simple in structure, convenient in assembly, and has the advantages of high production efficiency, low failure rate and stable performance.

The present invention relates to a door opening pressing rebounder, comprising a bracket, a pressing assembly and a swing rod that are elastically movable on the bracket, the swing rod being hinged on the bracket, a transmission mechanism being provided between the pressing assembly and the swing rod, an elastic locking device being provided between the swing rod and the transmission mechanism, the swing rod being locked on the bracket through the elastic locking device, and an elastic locking component that is locked with the swing rod being provided on the bracket; the pressing assembly drives the transmission mechanism to move by pressing, the transmission mechanism drives the elastic locking device to release the lock on the swing rod, the elastic locking component causes one end of the swing rod to be separated from the locking of the elastic locking component by pressing, so that the unlocked swing rod reacts with the elastic locking component that has been released and reset under the action of elasticity. The bracket is provided with an elastic locking component that is locked with the swing rod, even if the pressing assembly is pressed, the swing rod will not pop out of the bracket, effectively preventing the swing rod from being easily popped out of the bracket due to external forces such as vibration during transportation, and preventing the product from being damaged during transportation.