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    • 1. 发明授权
    • Roller screw
    • 滚筒螺丝
    • US08336415B2
    • 2012-12-25
    • US12740924
    • 2008-10-29
    • Soshi MiyaharaMasahiko YoshinoLina TengTsutomu TogashiTakashi SakuyamaKentaro NishimuraTetsuya MiuraAkimasa YoshidaYusuke Todoroki
    • Soshi MiyaharaMasahiko YoshinoLina TengTsutomu TogashiTakashi SakuyamaKentaro NishimuraTetsuya MiuraAkimasa YoshidaYusuke Todoroki
    • F16H1/24F16H55/02F16C29/06
    • F16H25/2247F16H2025/2271Y10T74/19767Y10T74/19772
    • Provided is a roller screw capable of preventing rollers moving from an unloaded return path to a loaded roller rolling path from coming into collision with a scooping portion. The roller screw has: a screw shaft 1 having a spiral roller rolling surface 1a formed on an outer peripheral surface thereof; a nut 2 having a loaded roller rolling surface 2a formed in an inner peripheral surface thereof; a circulation member 3 having an unloaded return path connecting one end of the loaded roller rolling surface 2a of the nut 2 to an opposite end thereof; and a plurality of rollers 4 arranged in a loaded roller rolling path 6 and the unloaded return path. In the circulation member 3, as a scooping portion that juts toward the screw shaft 1 and provided for scooping the rollers 4 moving in the loaded roller rolling path 6 up into the unloaded return path, a pair of diagonal corresponding parts 14 is provided which are in contact with diagonal parts 4e of a rectangular side surface of each roller 4 and a width between which is gradually narrower as they are deeper in the unloaded return path in such a manner that a cross section of the unloaded return path is closer to a rectangle.
    • 提供一种滚子丝杠,其能够防止辊从卸载返回路径移动到加载的滚动滚动路径,从而与舀出部分发生碰撞。 滚子丝杠具有:在其外周面上形成螺旋辊滚动面1a的螺杆轴1; 具有形成在其内周面的负载辊滚动面2a的螺母2; 具有将螺母2的负载滚子滚动面2a的一端与其另一端连接的无载返回路径的循环构件3; 以及布置在加载辊滚动路径6中的多个辊4和未加载的返回路径。 在循环构件3中,作为朝向螺杆轴1突出并且用于将在加载的滚动滚动路径6中移动的滚子4向上抽取到无载返回路径中的铲斗部分,设置有一对对角线对应部件14, 与每个辊4的矩形侧表面的对角线部分4e接触,并且其宽度在它们在无载返回路径中较深时逐渐变窄,使得卸载返回路径的横截面更接近矩形 。
    • 2. 发明申请
    • ROLLER SCREW
    • 滚轮螺丝
    • US20100263467A1
    • 2010-10-21
    • US12740924
    • 2008-10-29
    • Soshi MiyaharaMasahiko YoshinoLina TengTsutomu TogashiTakashi SakuyamaKentaro NishimuraTetsuya MiuraAkimasa YoshidaYusuke Todoroki
    • Soshi MiyaharaMasahiko YoshinoLina TengTsutomu TogashiTakashi SakuyamaKentaro NishimuraTetsuya MiuraAkimasa YoshidaYusuke Todoroki
    • F16H25/22
    • F16H25/2247F16H2025/2271Y10T74/19767Y10T74/19772
    • Provided is a roller screw capable of preventing rollers moving from an unloaded return path to a loaded roller rolling path from coming into collision with a scooping portion. The roller screw has: a screw shaft 1 having a spiral roller rolling surface la formed on an outer peripheral surface thereof; a nut 2 having a loaded roller rolling surface 2a formed in an inner peripheral surface thereof; a circulation member 3 having an unloaded return path connecting one end of the loaded roller rolling surface 2a of the nut 2 to an opposite end thereof; and a plurality of rollers 4 arranged in a loaded roller rolling path 6 and the unloaded return path. In the circulation member 3, as a scooping portion that juts toward the screw shaft 1 and provided for scooping the rollers 4 moving in the loaded roller rolling path 6 up into the unloaded return path, a pair of diagonal corresponding parts 14 is provided which are in contact with diagonal parts 4e of a rectangular side surface of each roller 4 and a width between which is gradually narrower as they are deeper in the unloaded return path in such a manner that a cross section of the unloaded return path is closer to a rectangle.
    • 提供一种滚子丝杠,其能够防止辊从卸载返回路径移动到加载的滚动滚动路径,从而与舀出部分发生碰撞。 滚子丝杠具有:在其外周面上形成有螺旋滚子滚动面1a的螺杆轴1; 具有形成在其内周面的负载辊滚动面2a的螺母2; 具有将螺母2的负载滚子滚动面2a的一端与其另一端连接的无载返回路径的循环构件3; 以及布置在加载辊滚动路径6中的多个辊4和未加载的返回路径。 在循环构件3中,作为朝向螺杆轴1突出并且用于将在加载的滚动滚动路径6中移动的滚子4向上抽取到无载返回路径中的铲斗部分,设置有一对对角线对应部件14, 与每个辊4的矩形侧表面的对角线部分4e接触,并且其宽度在它们在无载返回路径中较深时逐渐变窄,使得卸载返回路径的横截面更接近矩形 。
    • 3. 发明申请
    • ROLLER SCREW AND METHOD OF CIRCULATING ROLLERS IN ROLLER SCREW
    • 滚子螺杆和滚子螺旋滚子的循环方法
    • US20100282011A1
    • 2010-11-11
    • US12744175
    • 2008-11-14
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • F16H25/22
    • F16H25/2247F16H2025/2271Y10T74/19749Y10T74/19772
    • There is provided a roller screw in which a twisted amount of an unloaded return path is reduced.The roller screw has a screw shaft 1 having a spiral roller-rolling surface is on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface is of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8. The circulation member 7 guides the rollers which have moved and arrived at the one end of the loaded roller-rolling path 6 having less than one turn, to the unloaded return path 8, and then returns the rollers to the other end of the loaded roller-rolling path 6 having less than one turn. The number of turns of the loaded roller-rolling path 6 is set to be less than one turn, whereby the rollers 4 which have arrived at one end of the loaded roller-rolling path 6 can be transferred to the other end of the loaded roller-rolling path 6 without changing their attitudes.
    • 提供了一种滚子丝杠,其中卸载的返回路径的扭转量减小。 滚子丝杠具有螺旋滚子滚动面的螺旋轴1在其外周面上; 在其内周面上具有螺旋负载的滚动滚动面2a的螺母2与滚子滚动面相对的螺旋加载滚动滚动面是螺杆轴1; 布置在螺母2中并且形成为具有将螺母2的转数小于1的加载的滚动滚动面2a的一端与另一端连接的无载返回路径8的循环构件7; 以及多个辊4,其布置在由加载的滚动滚动路径6和未加载的返回路径8组成的单圈辊循环路径中。循环构件7引导已经移动并到达加载的滚动路径的一端的辊 具有小于1转的滚动滚道6到无载返回路径8,然后将辊返回到具有小于一圈的负载滚动滚动路径6的另一端。 负载滚动滚动路径6的匝数被设定为小于一圈,从而可以将已经到达负载的滚动滚动路径6的一端的辊4传递到负载辊的另一端 滚动路径6,而不改变他们的态度。
    • 4. 发明授权
    • Roller screw and method of circulating rollers in roller screw
    • 滚子螺杆和滚子丝杠循环方法
    • US08739646B2
    • 2014-06-03
    • US12744175
    • 2008-11-14
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • Kentaro NishimuraTetsuya MiuraAkimasa YoshidaSoshi MiyaharaYusuke TodorokiTakashi Sakuyama
    • F16H25/22
    • F16H25/2247F16H2025/2271Y10T74/19749Y10T74/19772
    • There is provided a roller screw in which a twisted amount of an unloaded return path is reduced.The roller screw has a screw shaft 1 having a spiral roller-rolling surface 1a on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface 1a of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8. The circulation member 7 guides the rollers which have moved and arrived at the one end of the loaded roller-rolling path 6 having less than one turn, to the unloaded return path 8, and then returns the rollers to the other end of the loaded roller-rolling path 6 having less than one turn. The number of turns of the loaded roller-rolling path 6 is set to be less than one turn, whereby the rollers 4 which have arrived at one end of the loaded roller-rolling path 6 can be transferred to the other end of the loaded roller-rolling path 6 without changing their attitudes.
    • 提供了一种滚子丝杠,其中卸载的返回路径的扭转量减小。 滚子丝杠具有在其外周面上具有螺旋滚子滚动面1a的螺杆轴1; 在其内周面上具有螺旋负载的滚动滚动面2a的螺母2,与螺旋轴1的滚动滚动面1a相对的螺旋加载滚动滚动面; 布置在螺母2中并且形成为具有将螺母2的转数小于1的加载的滚动滚动面2a的一端与另一端连接的无载返回路径8的循环构件7; 以及多个辊4,其布置在由加载的滚动滚动路径6和未加载的返回路径8组成的单圈辊循环路径中。循环构件7引导已经移动并到达加载的滚动路径的一端的辊 具有小于1转的滚动滚道6到无载返回路径8,然后将辊返回到具有小于一圈的负载滚动滚动路径6的另一端。 负载滚动滚动路径6的匝数被设定为小于一圈,从而可以将已经到达负载的滚动滚动路径6的一端的辊4传递到负载辊的另一端 滚动路径6,而不改变他们的态度。
    • 5. 发明授权
    • Screw device and method of manufacturing the same
    • 螺丝装置及其制造方法
    • US08051729B2
    • 2011-11-08
    • US11917592
    • 2006-06-16
    • Akimasa YoshidaMasakazu UesugiKentaro NishimuraSatoshi FujitaSatoru NagaiHiroyuki Arai
    • Akimasa YoshidaMasakazu UesugiKentaro NishimuraSatoshi FujitaSatoru NagaiHiroyuki Arai
    • F16H29/20F16H1/24
    • F16H25/2209F16H25/2247F16H2025/2271F16H2025/2481Y10T74/18728Y10T74/19744Y10T74/19791
    • The present invention provides a screw device which takes a heavy load in one direction along the axis of the screw shaft and only a light load in the opposite direction, the screw device capable of providing ease of control of preloading.The screw device of the present invention has a screw shaft 1 with an outer surface having a ball rolling groove 1a for rolling balls 7 and a roller rolling groove 1b for rolling rollers 6 both spirally formed thereon; a ball nut 4 with an inner surface having a ball rolling groove 4a spirally formed thereon facing the ball rolling groove 1a of the screw shaft 1; a roller nut 5 with an inner surface having a roller rolling groove 5a spirally formed thereon facing the roller rolling groove 1b of the screw shaft 1; a plurality of balls 7 arranged between the screw shaft 1 and the ball nut 4; and a plurality of rollers 6 arranged between the screw shaft 1 and the roller nut 5. The ball nut 4 and the roller nut 5 are connected along an axis of the screw shaft 1.
    • 本发明提供了一种螺杆装置,其沿着螺杆轴的轴线沿一个方向承受较重的载荷,并且只有相反方向上的轻负荷,螺杆装置能够容易地控制预加载。 本发明的螺纹装置具有:螺旋轴1,其外表面具有用于滚珠滚珠的滚珠滚动槽1a和用于在其上螺旋形成的滚动辊6的滚子滚动槽1b; 滚珠螺母4,其内表面具有螺旋形地形成在其上的滚珠滚动槽4a,面对丝杠轴1的滚珠滚动槽1a; 滚子螺母5,其内表面具有螺旋地形成在其上的滚子滚动槽5a,其面对螺杆轴1的滚子滚动槽1b; 布置在螺杆轴1和滚珠螺母4之间的多个滚珠7; 以及布置在螺杆轴1和滚子螺母5之间的多个辊6.滚珠螺母4和滚子螺母5沿着螺杆轴1的轴线连接。
    • 7. 发明授权
    • Motion guide device
    • 运动导向装置
    • US08146453B2
    • 2012-04-03
    • US11815712
    • 2006-02-03
    • Masakazu UesugiKentaro NishimuraSatoshi FujitaAkimasa YoshidaSatoru NagaiHiroyuki Arai
    • Masakazu UesugiKentaro NishimuraSatoshi FujitaAkimasa YoshidaSatoru NagaiHiroyuki Arai
    • F16H25/22F16C33/37
    • F16C33/3706F16H25/2219F16H25/2247F16H2025/2271F16H2025/2276Y10T74/19749Y10T74/19767Y10T74/19781
    • A motion guide device is provided which comprises a chain of rollers in which retainers are interposed, in which the chain of rollers is given a degree of freedom of rotation. The motion guide device comprises a track member (5) on which a roller rolling part (5a) is formed which allows rollers (7) to roll on along the roller rolling part; a moving member (6) on which a loaded roller rolling part (6a) facing the roller rolling part (5a) is formed; a plurality of rollers (7) arranged on a roller circulation path containing a loaded roller rolling path (9) formed between the roller rolling part (5a) of the track member (5) and the roller rolling part (6a) of the moving member (6); and a plurality of retainers (8) respectively interposed between rollers of the plurality of rollers (7). The plurality of retainers (8) are mutually separated, each of the retainers (8) which is divided into a first divided member (31) contacting one roller of a pair of rollers (7) with each retainer (8) sandwiched therebetween and a second divided member (32) contacting the other roller (7) of the pair of rollers, and the first divided member (31) is allowed to rotate relative to the second divided member (32).
    • 提供了一种运动引导装置,其包括一列辊,其中夹持有夹持器,在该链中,链条被赋予旋转自由度。 运动引导装置包括轨道构件(5),滚子滚动部分(5a)形成在该轨道构件上,允许滚子(7)沿着滚动滚动部分滚动; 形成有面向辊滚动部(5a)的加载辊滚动部(6a)的移动部件(6) 布置在辊循环路径上的多个辊(7),其包含形成在轨道构件(5)的滚子滚动部分(5a)和移动构件的滚子滚动部分(6a)之间的加载滚子滚动路径(9) (6); 以及分别插入在所述多个辊(7)的辊之间的多个保持器(8)。 多个保持器(8)相互分离,每个保持器(8)被分成与一对辊(7)中的一个辊接触的第一分隔构件(31),每个保持器(8)夹在其间并且 第二分割构件(32)与一对辊的另一个辊(7)接触,并且第一分隔构件(31)被允许相对于第二分隔构件(32)旋转。
    • 8. 发明申请
    • MOTION GUIDE DEVICE
    • 运动指南装置
    • US20100058885A1
    • 2010-03-11
    • US11815712
    • 2006-02-03
    • Masakazu UesugiKentaro NishimuraSatoshi FujitaAkimasa YoshidaSatoru NagaiHiroyuki Arai
    • Masakazu UesugiKentaro NishimuraSatoshi FujitaAkimasa YoshidaSatoru NagaiHiroyuki Arai
    • F16H1/24F16C29/06
    • F16C33/3706F16H25/2219F16H25/2247F16H2025/2271F16H2025/2276Y10T74/19749Y10T74/19767Y10T74/19781
    • A motion guide device is provided which comprises a chain of rollers in which retainers are interposed, in which the chain of rollers is given a degree of freedom of rotation. The motion guide device comprises a track member (5) on which a roller rolling part (5a) is formed which allows rollers (7) to roll on along the roller rolling part; a moving member (6) on which a loaded roller rolling part (6a) facing the roller rolling part (5a) is formed; a plurality of rollers (7) arranged on a roller circulation path containing a loaded roller rolling path (9) formed between the roller rolling part (5a) of the track member (5) and the roller rolling part (6a) of the moving member (6); and a plurality of retainers (8) respectively interposed between rollers of the plurality of rollers (7). The plurality of retainers (8) are mutually separated, each of the retainers (8) which is divided into a first divided member (31) contacting one roller of a pair of rollers (7) with each retainer (8) sandwiched therebetween and a second divided member (32) contacting the other roller (7) of the pair of rollers, and the first divided member (31) is allowed to rotate relative to the second divided member (32).
    • 提供了一种运动引导装置,其包括一列辊,其中夹持有夹持器,在该链中,链条被赋予旋转自由度。 运动引导装置包括轨道构件(5),滚子滚动部分(5a)形成在该轨道构件上,允许滚子(7)沿着滚动滚动部分滚动; 形成有面向辊滚动部(5a)的加载辊滚动部(6a)的移动部件(6) 布置在辊循环路径上的多个辊(7),其包含形成在轨道构件(5)的滚子滚动部分(5a)和移动构件的滚子滚动部分(6a)之间的加载滚子滚动路径(9) (6); 以及分别插入在所述多个辊(7)的辊之间的多个保持器(8)。 多个保持器(8)相互分离,每个保持器(8)被分成与一对辊(7)中的一个辊接触的第一分隔构件(31),每个保持器(8)夹在其间并且 第二分割构件(32)与一对辊的另一个辊(7)接触,并且第一分隔构件(31)被允许相对于第二分隔构件(32)旋转。