公开(公告)号：US06290245B1

公开(公告)日：2001-09-18

申请号：US09162224

申请日：1998-09-28

申请人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki ,  Takashi Yamada

发明人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki ,  Takashi Yamada

IPC分类号： B60G1156

CPC分类号： B60G17/005 ,  B60G2200/322 ,  B60G2204/46 ,  B60G2300/022 ,  B60G2500/106

摘要： An apparatus for controlling pivoting of a forklift rear axle. A hydraulic damper is arranged between a rear axle and a forklift body. The damper includes two oil chambers. The oil chambers are connected to a first passage and a second passage. A two-way switch valve is arranged between the oil chambers. The valve permits the flow of oil between the oil chambers and allows pivoting of the rear axle when opened. The valve restricts the flow of oil between the oil chambers and prohibits pivoting of the rear axle, thereby locking the rear axle when closed. When the rear axle is released from a locked state, the valve repeats a valve cycle, which includes opening and closing the valve, to regulate the amount of fluid that flows between the chambers. The valve is then kept in an opened state. This prevents shock that may be produced by sudden tilting of the body when the rear axle is released from a locked state.

摘要翻译： 一种用于控制叉车后桥的枢转的装置。 液压阻尼器设置在后桥和叉车主体之间。 阻尼器包括两个油室。 油室连接到第一通道和第二通道。 在油室之间设有双向切换阀。 阀门允许油室之间的油流动，并允许后轴在打开时枢转。 阀限制油室之间的油流，并禁止后轴的枢转，从而在关闭时锁定后轴。 当后轴从锁定状态释放时，阀重复阀循环，其包括打开和关闭阀，以调节在室之间流动的流体的量。 阀然后保持打开状态。 这防止当后轴从锁定状态释放时身体的突然倾斜可能产生的冲击。

公开(公告)号：US06398252B1

公开(公告)日：2002-06-04

申请号：US09166376

申请日：1998-10-05

申请人： Kazuo Ishikawa ,  Toshikazu Kamiya ,  Takaki Ogawa ,  Masakatsu Suzuki

发明人： Kazuo Ishikawa ,  Toshikazu Kamiya ,  Takaki Ogawa ,  Masakatsu Suzuki

IPC分类号： B60P143

CPC分类号： B60R16/0239 ,  B60T8/171 ,  G01C21/26 ,  G01P1/023

摘要： An assembly for mounting a sensor, which measures a running state of a vehicle, on the vehicle at a predetermined positional relationship to the vehicle. The assembly includes a control unit for controlling the vehicle based on a signal transmitted from the sensor and a circuit board. The assembly further includes a case to be fixed to the vehicle for housing the circuit board and a holding member for holding the sensor at an inclination relative to the circuit board. The holding member maintains the positional relationship between the sensor and the vehicle when the case is fixed to the vehicle.

摘要翻译： 一种用于以与车辆预定的位置关系安装在车辆上测量车辆行驶状态的传感器的组件。 该组件包括用于基于从传感器传送的信号和电路板来控制车辆的控制单元。 组件还包括要固定到车辆上用于容纳电路板的壳体和用于相对于电路板倾斜地保持传感器的保持构件。 当壳体固定在车辆上时，保持构件保持传感器和车辆之间的位置关系。

公开(公告)号：US06179304B2

公开(公告)日：2001-01-30

申请号：US09203871

申请日：1998-12-02

申请人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki

发明人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki

IPC分类号： B62B502

CPC分类号： B60G17/005 ,  B60G2200/322 ,  B60G2204/46 ,  B60G2300/022 ,  B60G2400/104 ,  B60G2400/252 ,  B60G2400/60

摘要： An apparatus for controlling pivoting the rear axle of a forklift. The forklift includes forks, which are lifted and lowered relative to a body frame. A locking mechanism, which includes a hydraulic damper and an electromagnetic valve, locks the rear axle to stabilize the body frame. A controller controls the locking mechanism to lock the rear axle when the fork height is at least as great as a predetermined height threshold value and the weight of a load on the fork is at least as great as a predetermined weight threshold value. The controller also controls the locking mechanism to lock the rear axle when the lateral acceleration is at least as great as a predetermined threshold value. Further, the controller changes the threshold value of the lateral acceleration in accordance with the fork height.

摘要翻译： 一种用于控制使叉车的后轴枢转的装置。 叉车包括相对于车身框架升降的叉子。 包括液压阻尼器和电磁阀的锁定机构锁定后桥以稳定车身框架。 当叉高度至少与预定高度阈值一样大时，控制器控制锁定机构来锁定后轴，并且叉子上的负载的重量至少等于预定重量阈值。 当横向加速度至少与预定阈值一样大时，控制器还控制锁定机构来锁定后桥。 此外，控制器根据叉高度改变横向加速度的阈值。

公开(公告)号：US06719098B1

公开(公告)日：2004-04-13

申请号：US09192036

申请日：1998-11-13

申请人： Kazuo Ishikawa ,  Kenji Sugiura ,  Masakatsu Suzuki ,  Takaki Ogawa

发明人： Kazuo Ishikawa ,  Kenji Sugiura ,  Masakatsu Suzuki ,  Takaki Ogawa

IPC分类号： B66F906

CPC分类号： B60G17/005 ,  B60G2200/322 ,  B60G2204/46 ,  B60G2300/022 ,  B60G2400/0523 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/51

摘要： An apparatus for restricting pivoting of a pivotal axle in a forklift. The forklift has an axle that is supported pivotally relative to a body frame. A damper is arranged between the body frame and the axle to permit and restrict pivoting of the axle. An electromagnetic valve locks the damper to restrict pivoting of the axle. The axle is free to pivot when the pivot angle of the axle relative to the body frame exceeds a predetermined reference angle. A controller refers to the pivot angle and other factors relating to vehicle stability when deciding whether to restrict pivoting of the axle.

摘要翻译： 一种用于限制叉车中的枢转轴的枢转的装置。 叉车具有相对于车身框架枢转地支撑的车轴。 在主体框架和轴之间布置有阻尼器，以允许和限制轴的枢转。 电磁阀锁定阻尼器以限制轴的枢转。 当车轴相对于车身框架的枢转角度超过预定的参考角度时，轴可自由枢转。 在决定是否限制车轴的转动时，控制器指的是枢轴角度和与车辆稳定性有关的其他因素。

公开(公告)号：US06308962B1

公开(公告)日：2001-10-30

申请号：US09191331

申请日：1998-11-13

申请人： Kazuo Ishikawa ,  Hiroyuki Fujimori ,  Masakatsu Suzuki ,  Kazuo Komori ,  Takaki Ogawa

发明人： Kazuo Ishikawa ,  Hiroyuki Fujimori ,  Masakatsu Suzuki ,  Kazuo Komori ,  Takaki Ogawa

IPC分类号： B60G1701

CPC分类号： B66F17/003 ,  B60G9/02 ,  B60G17/005 ,  B60G17/01908 ,  B60G2200/322 ,  B60G2204/11 ,  B60G2204/46 ,  B60G2300/022 ,  B60G2400/0511 ,  B60G2400/252 ,  B60G2401/00 ,  B60G2800/24

摘要： An industrial vehicle has a body frame and an axle, which supports wheels and is pivotally supported by the body frame. A potentiometer is supported on the body frame and is spaced apart from the pivot axis of the axle by a predetermined distance. The potentiometer detects the pivot angle of the axle. A link mechanism amplifies motion of axle pivot and converts the axle motion into rotational or linear motion. The link mechanism then actuates the potentiometer in accordance with the converted motion.

摘要翻译： 工业车辆具有主体框架和车轴，其支撑轮子并且被车身框架可枢转地支撑。 电位器被支撑在主体框架上并且与轴的枢转轴线间隔预定距离。 电位计检测轴的转动角度。 连杆机构放大车轴枢轴的运动并将车轴运动转换为旋转或直线运动。 然后，连杆机构根据转换的运动致动电位计。

公开(公告)号：US6056501A

公开(公告)日：2000-05-02

申请号：US190518

申请日：1998-11-12

申请人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki

发明人： Kazuo Ishikawa ,  Takaki Ogawa ,  Masakatsu Suzuki

IPC分类号： B60G17/005 ,  B60G17/016 ,  B66F9/075 ,  B66F9/08 ,  B66F17/00 ,  B66F9/22

CPC分类号： B66F9/0755 ,  B60G17/005 ,  B60G17/0162 ,  B66F17/003 ,  B66F9/07586 ,  B66F9/082 ,  B60G2200/322 ,  B60G2204/4605 ,  B60G2300/022 ,  B60G2400/0511 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/50 ,  B60G2400/61 ,  B60G2400/90 ,  B60G2800/0122 ,  B60G2800/24 ,  B60G2800/70 ,  B60G2800/9122

摘要： An axle tilt control apparatus for forklifts is disclosed. The forklift includes a rear axle pivotally supported by a body frame and a front axle rigidly fixed to the body frame. A mast is supported at the front portion of the body frame to tilt forward and backward. Forks are supported by the mast to be lifted and lowered. The center of gravity of the forklift in the fore-and-aft direction approaches the front axle as the mast is tilted forward. Pivoting of the rear axle is restricted by the hydraulic cylinder when the height of the forks is higher than a predetermined height determination value and the weight of a load on the forks is heavier than a predetermined weight determination value to improve the vehicle's stability. The weight determination value increases as the mast is tilted forward. When a load on the forks is being unloaded, tilting of the rear axle is permitted regardless of the height of the forks and the weight of the load on the forks. Therefore, the rear axle is not unnecessarily locked.

摘要翻译： 公开了一种用于叉车的轴倾斜控制装置。 叉车包括由主体框架枢转地支撑的后桥和刚性地固定到车身框架的前轴。 桅杆支撑在车体框架的前部，以向前和向后倾斜。 叉子由桅杆支撑以被提升和降低。 当桅杆向前倾斜时，叉车在前后方向的重心接近前桥。 当叉的高度高于预定的高度确定值并且叉的负载重量大于预定的重量确定值时，后轴的枢转受液压缸限制，以提高车辆的稳定性。 当桅杆向前倾斜时，重量确定值增加。 当货叉上的载荷卸载时，不考虑货叉的高度和货叉上的载荷重量，允许后轴倾斜。 因此，后轴不会被不必要地锁定。

公开(公告)号：US4511974A

公开(公告)日：1985-04-16

申请号：US341678

申请日：1982-01-22

申请人： Masao Nakane ,  Motohiko Takahashi ,  Takaki Ogawa

发明人： Masao Nakane ,  Motohiko Takahashi ,  Takaki Ogawa

IPC分类号： B66F17/00 ,  G01G19/08 ,  G06F17/00 ,  G06F15/20

CPC分类号： G01G19/083 ,  B66F17/003 ,  B60G2204/11 ,  B60G2300/022 ,  B60G2400/05 ,  B60G2400/61 ,  B60G2400/63 ,  B60G2600/04 ,  B60G2600/044 ,  B60G2800/012 ,  B60W2530/10

摘要： An indicating method and apparatus of cargo load condition of a forklift truck. In this method and apparatus weight and centroid position of the loaded cargo are calculated by a calculation control circuit based on loads applied to a lift mechanism and a tilt mechanism of the truck. The calculated weight and centroid position are displayed on two-dimensional coordinates illustrated on a displaying device in contrast with an overturn danger line which is determined forecasting the forward overturn of the truck. The load condition may be displayed in three-dimensional coordinates in relation to lift height of the cargo as well as the weight and the centroid position thereof.

摘要翻译： 叉车货物装载状态的指示方法和装置。 在该方法中，装载货物的重量和重心位置通过计算控制电路基于施加到升降机构的载荷和卡车的倾斜机构来计算。 所计算的重量和重心位置显示在显示装置上所示的二维坐标上，与确定预测卡车前进翻转的倾覆危险线相反。 负载条件可以相对于货物的升降高度以及其重量和重心位置的三维坐标显示。

公开(公告)号：US06296081B1

公开(公告)日：2001-10-02

申请号：US09287835

申请日：1999-04-07

申请人： Katsumi Nagai ,  Takaki Ogawa ,  Yasuhiko Naruse

发明人： Katsumi Nagai ,  Takaki Ogawa ,  Yasuhiko Naruse

IPC分类号： B66B300

CPC分类号： B66F9/08 ,  B66F9/20 ,  G01S15/88

摘要： An ultrasonic sensor detects whether a piston is at the lowest position. The sensor is not affected by the environment or damaged by contact with other objects. The sensor is located in the bottom of a mast cylinder, transmits ultrasonic waves to the bottom of a piston and receives ultrasonic waves reflected by the piston. The sensor then outputs electric signals based on the received ultrasonic waves. The ultrasonic sensor is electrically connected to a transmitter-receiver, which, in turn, is electrically connected to a controller. The transmitter-receiver includes an ultrasonic wave generator and sends ultrasonic wave transmitting signal having a predetermined frequency to the ultrasonic sensor based on control signals from the controller. The controller measures time from when it outputs the ultrasonic wave transmitting signal to when the sensor receives a reflected wave. The controller then compares the measured time with a threshold value thereby judging whether the piston is at the lowest position.

摘要翻译： 超声波传感器检测活塞是否处于最低位置。 传感器不受环境影响或与其他物体的接触造成损坏。 传感器位于桅杆气缸的底部，将超声波传送到活塞的底部，并接收由活塞反射的超声波。 然后，传感器基于接收到的超声波输出电信号。 超声波传感器电连接到发射器 - 接收器，发射器 - 接收器又与控制器电连接。 发射机 - 接收机包括超声波发生器，并且基于来自控制器的控制信号向超声波传感器发送具有预定频率的超声波发射信号。 控制器测量从输出超声波发射信号到传感器接收到反射波时的时间。 然后，控制器将测量的时间与阈值进行比较，从而判断活塞是否处于最低位置。