Device and method for detecting position of movable body by using ultrasonic waves
    11.
    发明授权
    Device and method for detecting position of movable body by using ultrasonic waves 失效
    使用超声波检测移动体位置的装置和方法

    公开(公告)号:US06490227B2

    公开(公告)日:2002-12-03

    申请号:US09803536

    申请日:2001-03-09

    IPC分类号: G01S1588

    CPC分类号: G01S15/102 B66F9/20 G01S15/88

    摘要: An ultrasonic sensor is located in the bottom of a lift cylinder of a forklift and emits ultrasonic waves toward a piston in the cylinder. A controller controls the ultrasonic sensor to consecutively emit ultrasonic waves that have different amplitudes at predetermined intervals. The ultrasonic waves are emitted in order of smallness of amplitude. The controller computes the distance between the ultrasonic sensor and the piston based on a period from when the ultrasonic sensor emits one of the ultrasonic waves to when the ultrasonic sensor receives the ultrasonic wave that is reflected by the piston. As a result, the range of the detectable distances is extended.

    摘要翻译: 超声波传感器位于叉车的提升缸的底部,并向气缸中的活塞发射超声波。 控制器控制超声波传感器以预定间隔连续地发射具有不同振幅的超声波。 超声波按照振幅小的顺序发射。 控制器基于从超声波传感器发射超声波之一到超声波传感器接收到由活塞反射的超声波的时间段来计算超声波传感器和活塞之间的距离。 结果,延长了可检测距离的范围。

    Displacement of a variable displacemet hydraulic pump and speed of an
engine driving the pump controlled based on demand
    12.
    发明授权
    Displacement of a variable displacemet hydraulic pump and speed of an engine driving the pump controlled based on demand 失效
    变量液压泵的位移和基于需求控制的发动机的发动机转速

    公开(公告)号:US5050379A

    公开(公告)日:1991-09-24

    申请号:US571732

    申请日:1990-08-23

    IPC分类号: B66F9/20 F04B49/20

    CPC分类号: F04B49/20 B66F9/20

    摘要: A controller for a hydraulic fluid flow control apparatus determines a quantity necessary for loading/unloading operations according to a signal from a lever operating degree detector, and controls a variable displacement type hydraulic pump to obtain the quantity. Accordingly, unnecessary hydraulic fluid flow in the hydraulic apparatus is reduced. The controller determines when a vehicle is stopped according to a signal from a clutch ON-OFF detector or a neutral sensor, and can raise the rpm of an engine. Therefore, when the loading/unloading operations are being executed while the vehicle is stopped, there is no need to operate the accelerator pedal.

    摘要翻译: 用于液压流体流量控制装置的控制器根据来自杠杆操作度检测器的信号确定装载/卸载操作所需的量,并且控制可变排量型液压泵以获得该量。 因此,液压装置中的不必要的液压流体流动减少。 控制器根据来自离合器ON-OFF检测器或中性传感器的信号来确定车辆何时停止,并且可以提高发动机的转速。 因此,当在车辆停止时正在执行装载/卸载操作时,不需要操作加速器踏板。

    PACKAGING APPARATUS
    13.
    发明申请
    PACKAGING APPARATUS 有权
    包装设备

    公开(公告)号:US20090277140A1

    公开(公告)日:2009-11-12

    申请号:US12089854

    申请日:2005-10-19

    IPC分类号: B65B9/06

    摘要: ABSTRACT There is provided a packaging apparatus including a mechanism for joining a film from a film roll and a film from another film roll to each other. The packaging apparatus is capable of preventing a joint of the films from suffering a thermal sealing failure thereby increasing production efficiency. Package apparatus (10) includes film supply mechanism (10A) for joining and supplying films (1A, 1B) and packaging mechanism (10C) for producing package bags from the film. Film accumulator (10B) for guiding and holding the film in a meandering fashion is disposed between film supply mechanism (10A) and packaging mechanism (10C). Some of accumulating rollers (21) of film accumulator (10B) are movable to a predetermined position depending on the size of package bags to be manufactured. The length of the film from a position in which the films are joined to each other to a position in which the film is horizontally sealed is changed to prevent the joint between the films from being placed in the position in which the film is horizontally sealed.

    摘要翻译: 摘要提供了一种包装设备,包括用于将薄膜从薄膜辊和另一薄膜的薄膜彼此接合的机构。 包装装置能够防止膜的接合受到热封失效,从而提高生产效率。 包装装置(10)包括用于从薄膜制造包装袋的薄膜(1A,1B)和包装机构(10C)的接合和供应的薄膜供应机构(10A)。 在薄膜供给机构(10A)和包装机构(10C)之间配置用于以蜿蜒的方式引导和保持薄膜的薄膜储存器(10B)。 膜蓄积器(10B)的一些积聚辊(21)可以根据待制造的包装袋的尺寸移动到预定位置。 改变膜从胶片彼此接合的位置到膜被水平密封的位置的膜的长度,以防止膜之间的接合处于膜被水平密封的位置。

    Position detecting device and industrial vehicle having the position detecting device
    14.
    发明授权
    Position detecting device and industrial vehicle having the position detecting device 失效
    位置检测装置和具有位置检测装置的工业车辆

    公开(公告)号:US06463009B1

    公开(公告)日:2002-10-08

    申请号:US09644738

    申请日:2000-08-23

    IPC分类号: G01S1502

    摘要: In a position detecting device which detects a piston rod based on the time elapsed from a point at which an ultrasonic wave is emitted from an ultrasonic wave sensor toward a lower end surface of the piston rod reciprocatingly moved linearly by supply and discharge of a working oil with respect to a hydraulic cylinder to a point at which the ultrasonic wave reflected by the lower end surface of the piston rod is received by the ultrasonic wave sensor, if the working oil's temperature is detected by a temperature sensor, then a microcomputer sets the strength of the ultrasonic wave emitted from the ultrasonic wave sensor in accordance with the temperature of the working oil so as to accurately detect the position of the piston.

    摘要翻译: 一种位置检测装置,其基于从超声波传感器向超声波传感器发射超声波的时间经过的时间向活塞杆的下端面检测活塞杆,该活塞杆通过工作油的供给和排出线性往复移动 相对于液压缸,由超声波传感器接收到由活塞杆的下端面反射的超声波的点,如果通过温度传感器检测到工作油的温度,则微型机将强度 根据工作油的温度从超声波传感器发射的超声波,以便精确地检测活塞的位置。

    Position detector for fluid cylinder
    15.
    发明授权
    Position detector for fluid cylinder 有权
    流体缸位置检测器

    公开(公告)号:US06267042B1

    公开(公告)日:2001-07-31

    申请号:US09366918

    申请日:1999-08-04

    申请人: Katsumi Nagai

    发明人: Katsumi Nagai

    IPC分类号: F01B2526

    摘要: A position detector includes a fluid cylinder having a piston. An ultrasonic transceiver is provided at one end of the piston outside of the moving range of the piston. In response to electrical signals, the ultrasonic transceiver transmits ultrasonic waves to a reflection surface of the piston. The transceiver receives the ultrasonic waves reflected by the piston and then generates electrical signals representing the reflected waves. A sensor detects that the piston is at a predetermined position, at which the distance to the transceiver is known. A CPU supplies electrical signals to the ultrasonic transceiver to produce ultrasonic waves and receives electrical signals representing the reflected waves from the ultrasonic transceiver. The CPU then computes a piston position value, which is a function of the travel time from when an ultrasonic wave is transmitted to when the reflected wave is received and the speed of the waves. The CPU determines the speed of the waves when the piston is detected to be at the reference position. The CPU then computes the current position of the piston based on the speed of the waves and on a current reading of the travel time.

    摘要翻译: 位置检测器包括具有活塞的流体缸。 在活塞的移动范围外的活塞的一端设有超声收发器。 响应于电信号,超声波收发器将超声波传送到活塞的反射表面。 收发器接收由活塞反射的超声波,然后产生表示反射波的电信号。 传感器检测到活塞处于与收发器的距离已知的预定位置处。 CPU向超声波收发器提供电信号以产生超声波并接收表示来自超声波收发器的反射波的电信号。 CPU然后计算活塞位置值,该活塞位置值是从超声波被发射到接收反射波时的行进时间和波速的函数的函数。 当检测到活塞处于参考位置时,CPU确定波的速度。 CPU然后根据波速和行驶时间的当前读数来计算活塞的当前位置。

    Loading/unloading control apparatus for industrial vehicles
    16.
    发明授权
    Loading/unloading control apparatus for industrial vehicles 失效
    工业车辆装载/卸载控制装置

    公开(公告)号:US5146746A

    公开(公告)日:1992-09-15

    申请号:US807765

    申请日:1991-12-06

    IPC分类号: B62D6/02 B66F9/22 F15B21/08

    CPC分类号: F15B21/087 B66F9/22

    摘要: A loading/unloading control apparatus for a industrial vehicle control the discharge capacity of a variable displacement type hydraulic pump in accordance with the detected result of the amount of load applied to a loading/unloading hydraulic actuator or with a manual setting by an operator, thereby to obtain the most suitable working speed of the actuator for loading/unloading operations.

    摘要翻译: 用于工业车辆的装载/卸载控制装置根据检测到的装载/卸载液压致动器的负载量的检测结果或操作者手动设定来控制可变排量型液压泵的排出能力,由此 以获得用于装载/卸载操作的致动器的最合适的工作速度。