摘要:
Various works of a tractor or wheel loader that require frequent operations of start, stop, and switching between the forward drive and reverse drive that are repeated alternately can be performed very easily. The control apparatus comprises a speed change sensor that detects the step-on amount of a speed change pedal, an actuator that regulates the swash plate angle of a hydraulic pump based on the detection value of the speed change sensor, a transmission output unit rotation sensor that detects the revolution speed of an output shaft, and a control unit. The control unit performs control such that when the speed change pedal is not stepped on, a brake is applied to the travel wheels and both the forward drive clutch and the reverse drive clutch are disengaged, and also performs control such that when the transmission drive output detected with the transmission output unit rotation sensor is not more than that the forward-reverse drive switching speed, either the forward drive clutch or the reverse drive clutch is engaged as the speed change pedal is stepped on. When the engagement of the forward drive clutch or reverse drive clutch is confirmed, the brake of the travel wheels is released.
摘要:
Dispositif de verrouillage (100) comprenant un élément (30), mobile entre deux positions d'arrêt extrêmes, et un cliquet pivotant (10). Le cliquet pivotant (10) est symétrique par rapport à un plan passant par son axe de pivotement (35) et comporte un premier (15) et un deuxième (25) doigts de verrouillage qui sont destinés à s'engager chacun de façon stable, sous l'action d'une charge (F) agissant sur l'élément mobile (30), avec une des encoches symétriques (50a, 50b), ménagée sur l'élément mobile. Un ressort (20) est monté à l'état précontraint de manière que, pour une réaction élastique donnée (R1) de celui-ci, le bras de cette réaction par rapport à l'axe de pivotement (35) du cliquet (10) dans l'une quelconque des deux positions de verrouillage est tel que le cliquet (10) est débloqué par l'application de la plus faible charge qui est susceptible d'être appliquée à l'élément mobile (30) dans le sens visant à le faire passer vers l'autre position d'arrêt extrême. Applications spatiales, notamment pour les télescopes et les panneaux de générateurs solaires et les dispositifs d'amarrage, et terrestres, notamment pour tournevis spéciaux, distributeurs automatiques d'outils, détection de position ou inversion de mouvement.
摘要:
The present invention addresses the problem of reducing the ratchet sound that occurs at the start of braking when an operation pedal is operated by foot. Because a mounting seat 28 as a flat part and a base plate 24 are provided between a ratchet member 32 and the support axial center S of an operation pedal 18, there is a possibility that vibration of the ratchet member 32 will propagate to the adjacent mounting seat 28 and base plate 24, amplifying the ratchet sound. However, the adjacent mounting seat 28 and base plate 24 are provided with beads 56, 58 having cross-sections that bend convexly in a direction substantially orthogonal to the vibration waveform of the ratchet sound produced by a pole 42 coming into contact with serrations 30 when the mounting seat 28 and base plate 24 maintain a flat plate shape; i.e., in a circumferential direction about the support axial center S. Therefore, rigidity against the vibration is increased, the propagation of vibration is minimized, and the ratchet sound is effectively reduced.
摘要:
An operating assembly comprises a support structure (9), a user-operable operating member (7) movable in at least one direction of movement (10, 11) relative to the support structure (9) between a plurality of positions supported by the support structure (9); an array (14) of catches (15) extending along the direction of movement (10, 11); and a clicking pawl (16) resiliently accommodated for consecutive engagement with and disengagement from consecutive ones of the catches (15) of the array (14) in response to a movement of the operating member (7) in the direction of movement (10, 11). At least the clicking pawl (16) or the array (14) of catches (15) is accommodated with clearance (32) in the direction of movement (10, 11). A device comprising such an operating assembly is also described.
摘要:
L'invention concerne un dispositif d'arrêt en rotation d'une roue dentée (4) montée tournante autour d'un axe de rotation (X) dans un logement (3) d'un boîtier (1) et accessible par un canal d'accès (20) s'étendant sur un côté du logement (3) parallèlement à l'axe de rotation de la roue dentée, le dispositif comportant un doigt (11) monté sur le boîtier (1) pour être mobile radialement en regard de la roue dentée (4) à l'encontre d'un moyen de rappel (8) vers la roue dentée (4), le doigt (11) comportant un organe de manoeuvre (10) s'étendant en saillie dans le canal d'accès (20).
摘要:
A handbrake assembly for a vehicle, comprising an attachment means (6) for a brake cable (7), a lever (1) for applying tension to the cable via the attachment means, and a ratchet member (18), the latter comprising a body (19, 20) formed as a pressing and a sintered metal alloy toothed insert (23) fixed thereto. In this arrangement, sharp teeth can be provided on the ratchet member, without the need for a machining operation following the pressing of the body thereof.
摘要:
Various works of a tractor or wheel loader that require frequent operations of start, stop, and switching between the forward drive and reverse drive that are repeated alternately can be performed very easily. The control apparatus comprises a speed change sensor that detects the step-on amount of a speed change pedal, an actuator that regulates the swash plate angle of a hydraulic pump based on the detection value of the speed change sensor, a transmission output unit rotation sensor that detects the revolution speed of an output shaft, and a control unit. The control unit performs control such that when the speed change pedal is not stepped on, a brake is applied to the travel wheels and both the forward drive clutch and the reverse drive clutch are disengaged, and also performs control such that when the transmission drive output detected with the transmission output unit rotation sensor is not more than that the forward-reverse drive switching speed, either the forward drive clutch or the reverse drive clutch is engaged as the speed change pedal is stepped on. When the engagement of the forward drive clutch or reverse drive clutch is confirmed, the brake of the travel wheels is released.
摘要:
A force feedback input device includes an operation member having a shaft and operated by an operator, detection means, such as a rotary encoder, for detecting an operating status of the operation member, an actuator for providing force feedback to the operation member, control means for controlling the actuator based on a detection signal output from the detection means, and stopper means for restricting displacement of the operation member in a predetermined operational direction. The stopper means includes a ratchet mechanism to disengage ratchets from corresponding gear teeth in response to the detection signal from the detection means.