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1. 发明授权

US5890585A Limit switch mounting structure for a linear actuator 失效
标题翻译：用于线性执行器的限位开关安装结构
公开(公告)号：US5890585A
公开(公告)日：1999-04-06
申请号：US818276
申请日：1997-03-18
申请人： Kenichiro Nakamura , Toshio Mitsuyama , Takashi Noguchi
发明人： Kenichiro Nakamura , Toshio Mitsuyama , Takashi Noguchi
IPC分类号： F15B15/28 , F16H25/20 , F16H25/22 , H01H3/16 , H01H9/02
CPC分类号： H01H3/16 , H01H9/0207
摘要： A linear actuator in which the number of limit switches to be mounted, as well as the mounting position and direction of limit switches, can be selected with a high degree of freedom, the limit switch mounting spacing can be made short, and a positive operation is ensured while using a small number of components. Flat limit switch mounting flanges are fixed onto an outer cylinder of a linear actuator so that their positions are adjustable in both axial and circumferential directions of the outer cylinder, and a guide rail for slidably guiding a striker is supported by and between the limit switch mounting flanges. The striker is connected with the actuator rod of the actuator by a connecting rod. With projection or retraction of the actuating rod, the striker moves and actuates limit switches attached to the associated limit switch mounting flanges.
摘要翻译：可以以高自由度选择要安装的限位开关的数量以及限位开关的安装位置和方向的线性致动器，可以使限位开关的安装间隔变短，并且正的操作在使用少量组件的同时确保。平面限位开关安装法兰被固定在线性致动器的外筒上，使得它们的位置在外筒的轴向和圆周方向均可调节，并且用于可滑动地引导撞针的导轨由限位开关安装法兰。撞针通过连杆与致动器的致动杆连接。通过致动杆的突出或缩回，撞针移动并致动附接到相关联的限位开关安装法兰的限位开关。

2. 发明授权

US5760357A Thrust detecting device of a linear actuator 失效
标题翻译：线性执行器的推力检测装置
公开(公告)号：US5760357A
公开(公告)日：1998-06-02
申请号：US569693
申请日：1995-12-08
申请人： Kenichiro Nakamura , Toshio Mitsuyama , Makoto Kishida
发明人： Kenichiro Nakamura , Toshio Mitsuyama , Makoto Kishida
IPC分类号： G01L5/12 , H01H3/40 , H01H19/18 , H01H19/62 , H01H35/00 , H01H13/18 , H01H3/16
CPC分类号： H01H19/623 , H01H35/006 , F16H25/20 , H01H3/40
摘要： A device for detecting a change in the thrust load acting on the actuating rod of a linear actuator. The thrust detecting device includes a pinion which converts and enlarges an axial linear displacement of a rotating drive screw shaft caused by a change in the load on an actuating rod driven by the screw shaft into an angular displacement of a vertical shaft of the pinion. A circular scale plate is attached to the vertical shaft of the pinion and serves to indicate a preset value for the load change to be detected. A pair of striker plates each having a pointer effective to select a preset value on the circular scale plate and a striker effective to activate a corresponding limit switch are attached to the circular scale plate.
摘要翻译：用于检测作用在线性致动器的致动杆上的推力负载变化的装置。推力检测装置包括小齿轮，该小齿轮转换并扩大旋转的驱动螺杆轴的轴向线性位移，其由由螺杆轴驱动的致动杆上的负载变化引起的小齿轮的垂直轴的角位移。圆盘标尺安装在小齿轮的垂直轴上，用于指示要检测的负载变化的预设值。每个具有有效选择圆形刻度板上的预设值的指针的一对撞针板和有效激活对应的限位开关的撞针附接到圆形刻度板。

3. 发明授权

US5910692A Ball-threaded shaft anti-slipout type linear actuator 失效
标题翻译：滚珠轴防滑型线性执行器
公开(公告)号：US5910692A
公开(公告)日：1999-06-08
申请号：US985046
申请日：1997-12-04
申请人： Koichi Saeda , Minoru Komada , Kenichiro Nakamura , Toshio Mitsuyama
发明人： Koichi Saeda , Minoru Komada , Kenichiro Nakamura , Toshio Mitsuyama
IPC分类号： F16H25/22 , F16H25/20 , F16H25/24 , H02K41/00
CPC分类号： F16H25/20 , F16H2025/2081 , F16H2025/2093 , F16H25/2204 , F16H25/2454 , Y10T74/19702
摘要： To prevent a ball-threaded shaft from slipping out of a linear actuator, a linear actuator 10 has an output shaft 18 threaded in a nut 16 for moving forward and backward linearly with respect to an outer tube 22 secured to a housing 20. Linear reciprocating movement of the nut 16 is effected by a ball-threaded shaft 14 rotated normally and reversely by a driving motor 12. The shaft is held against axial displacement by a bearing assembly 8 having an axial disk 32 secured to a proximal end 24 of the ball-threaded shaft 14. On the nut side of the disk within the assembly are disposed a first tension receiving rotational body 36, a thrust bearing 45 and a second tension receiving rotational body 58. The assembly 8 is retained by a tension stopper 62 spread and inserted into an annular central groove 60 in the tube 22. The second tension receiving rotational body 58 is formed with a reduced diameter preventing circumferential surface 66 corresponding to an inner peripheral circumferential surface of the C-shaped tension stopper 62. Even if tension and a rotating force are exerted on the tension stopper 62, causing it to be reduced in diameter, the inner peripheral surface thereof comes into contact with the reduced diameter preventing surface 66.
摘要翻译：为了防止球形螺纹轴从线性致动器滑出，线性致动器10具有螺纹连接在螺母16中的输出轴18，用于相对于固定到壳体20的外管22线性地向前和向后移动。线性往复运动螺母16的运动由通过驱动电动机12正常和反向旋转的滚珠丝杠轴14实现。该轴由具有固定到球的近端24的轴向盘32的轴承组件8抵抗轴向位移在组件内的盘的螺母侧设置有第一张力接收旋转体36，推力轴承45和第二张力接收旋转体58.组件8由张力限制器62扩展保持，并且插入到管22中的环形中心槽60中。第二张力接收旋转体58形成为减小直径，防止圆周表面66对应于内周圆周 C形张紧止动件62的表面。即使张力和旋转力施加在张紧止动件62上，使其直径减小，其内周面也与减径面66接触。

4. 发明授权

US6067868A Anti-rotation mechanism in a screw type linear actuator 失效
标题翻译：螺旋式线性执行器中的防旋转机构
公开(公告)号：US6067868A
公开(公告)日：2000-05-30
申请号：US813763
申请日：1997-03-07
申请人： Kenichiro Nakamura , Toshio Mitsuyama , Takashi Noguchi
发明人： Kenichiro Nakamura , Toshio Mitsuyama , Takashi Noguchi
IPC分类号： F16H25/20
CPC分类号： F16H25/20 , F16H2025/204 , Y10T74/18672
摘要： An anti-rotation mechanism in a linear actuator has outer and inner cylinders, affords high accuracy and rigidity, is simple in structure, not requiring the use of a tie rod, and is inexpensive to manufacture. The outer cylinder 3 has both end portions 3 of circular cross section and an intermediate portion whose inner surface has an axially uniform non-circular cross-sectional shape including a rotation inhibiting surface 3F. The inner cylinder 4 has a collar 7 on the outer peripheral surface which is guided and supported slidably by the intermediate portion of the outer cylinder and has a conforming non-circular cross-sectional shape including a flat surface 7B for sliding engagement with the rotation inhibiting surface 3F to inhibit rotation of the inner cylinder.
摘要翻译：线性致动器中的防旋转机构具有外筒和内筒，提供高精度和刚性，结构简单，不需要使用拉杆，制造成本低廉。外筒3具有圆形截面的两个端部3和内表面具有包括旋转抑制面3F的轴向均匀的非圆形横截面形状的中间部。内筒4具有在外周面上的轴环7，其被外筒的中间部分可滑动地引导和支撑，并且具有一致的非圆形横截面形状，包括平坦表面7B，用于与旋转抑制表面3F以抑制内筒的旋转。

5. 发明授权

US5620078A Stroke control device for an actuator rod of a linear actuator 失效
标题翻译：行程控制装置，用于线性执行器的执行器杆
公开(公告)号：US5620078A
公开(公告)日：1997-04-15
申请号：US569448
申请日：1995-12-08
申请人： Kenichiro Nakamura , Toshio Mitsuyama , Makoto Kishida
发明人： Kenichiro Nakamura , Toshio Mitsuyama , Makoto Kishida
IPC分类号： F16H25/20 , G05D3/00 , G05D3/12 , H01H19/18 , H01H19/62 , F16D71/00
CPC分类号： H01H19/18 , F16H25/2015 , F16H2025/2075 , H01H19/623
摘要： A device providing an accurate adjustment of the length of a reciprocating stroke of an actuating rod of a linear actuator. The stroke control device includes a cam-plate mounting shaft 9 horizontally disposed within a limit switch box so that a plurality of limit-switch actuating cam plates 11A-11C mounted on the mounting shaft 9 for actuation of a corresponding number of limit switches LA-LC to control the stroke length of the actuating rod can be observed in one view as a horizontal array of laterally spaced, vertically disposed cam plates.
摘要翻译：一种提供线性致动器的致动杆的往复行程长度的精确调节的装置。行程控制装置包括水平地设置在限位开关箱内的凸轮板安装轴9，安装在安装轴9上的多个限位开关致动凸轮板11A-11C用于驱动相应数量的限位开关LA- 可以在一个视图中观察到用于控制致动杆的行程长度的LC作为横向间隔开的垂直设置的凸轮板的水平阵列。

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