TWI403650B - Torque release device for operating lever - Google Patents
Torque release device for operating lever Download PDFInfo
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- TWI403650B TWI403650B TW99109900A TW99109900A TWI403650B TW I403650 B TWI403650 B TW I403650B TW 99109900 A TW99109900 A TW 99109900A TW 99109900 A TW99109900 A TW 99109900A TW I403650 B TWI403650 B TW I403650B
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本發明是有關可使醫院、照顧設施或家庭等所使用的升降‧起伏式病床的底部動作的致動器旋轉操作，或使其他機器類的台或各種構件動作的致動器旋轉操作等所使用的離合狀的操作桿，尤其是有關在底部等動作範圍的邊界中對操作桿產生過大扭矩的場合可開放其扭矩之操作桿的扭矩釋放機構。The present invention relates to an actuator rotating operation for causing a bottom movement of a lifting/lowing bed used in a hospital, a care facility, a home, or the like, or an actuator for rotating another table or various members. The clutch-type operating lever to be used, in particular, the torque releasing mechanism of the operating lever whose torque can be opened when the operating lever is excessively torqued at the boundary of the operating range such as the bottom.
在醫療或照顧的現場，為了緊急進行病床底部的升降‧起伏動作多會進行操作桿旋轉操作的場合，此時，即使底部來到動作範圍的上限或下限時多數仍會持續著操作桿的旋轉操作，因此對輸出軸會產生過大的扭矩，而會有造成重要零件之操作桿本身或其他零件破損的場合。At the medical or nursing site, in order to urgently carry out the lifting and lowering of the bottom of the bed, the operation of the lever rotation is often performed. At this time, even if the bottom reaches the upper or lower limit of the operating range, the rotation of the lever will continue. Operation, so excessive torque will be generated on the output shaft, and there will be occasions where the operating lever of the important part or other parts is damaged.
為此，自以往即提出有在上述操作桿的操作中，如產生過大的扭矩時，開放其扭矩以取得破損防止的扭矩釋放機構的各種提案。For this reason, various proposals have been made for a torque release mechanism that opens its torque to obtain damage prevention when an excessive torque is generated during the operation of the above operation lever.
例如專利文獻1中，將從桿主體朝輸出軸之扭矩的傳達，藉著作為彈推手段的形成在板簧構件的彎曲部與爪部，及形成在離合構件的齒輪部與缺口部的彈簧卡合來進行的構成，或形成在壓縮螺旋彈簧所彈推之構件的缺口部與形成在離合構件之傾斜突部彈簧卡合來進行的構成，操作桿的操作中，如產生過大扭矩的場合，可藉著彈簧卡合的解除進行扭矩的開放。For example, in Patent Document 1, the transmission of the torque from the lever main body to the output shaft is performed by the bending portion and the claw portion of the leaf spring member and the spring portion formed in the gear portion and the notch portion of the clutch member by the elastic pushing means. a configuration in which the engagement is performed, or a configuration in which a notch portion of a member that is pushed by the compression coil spring is engaged with an inclined protrusion spring formed in the clutch member, and in the operation of the operation lever, if excessive torque is generated The torque can be opened by the release of the spring engagement.
另外，專利文獻中，藉著在形成於嵌合輸出軸的桿主體側的軸襯與軸襯嵌合孔之間的間隙內封入黏性流體或黏性彈性體的構成，使得桿主體對著輸出軸空轉而開放扭矩。Further, in the patent document, the viscous fluid or the viscous elastic body is sealed in a gap formed between the bushing formed on the rod main body side of the fitting output shaft and the bushing fitting hole, so that the rod main body faces The output shaft is idling and open torque.
[專利文獻][Patent Literature]
[專利文獻1] 日本特開2003-13993號公報[Patent Document 1] Japanese Patent Laid-Open Publication No. 2003-13993
[專利文獻2] 日本特開2005-46308號公報[Patent Document 2] Japanese Patent Laid-Open Publication No. 2005-46308
以上例示的習知的扭矩釋放機構中，專利文獻2不能調節進行放動作之扭矩的設定。Among the conventional torque release mechanisms exemplified above, Patent Document 2 cannot adjust the setting of the torque for performing the release operation.
另一方面，專利文獻1雖然可藉著板簧或壓縮螺旋彈簧的彈簧係數來調節進行開放動作之扭矩的設定，但是為進行調節，必須進行板簧或壓縮螺旋彈簧的更換，費事且不能進行微調。On the other hand, in Patent Document 1, the torque of the opening operation can be adjusted by the spring constant of the leaf spring or the compression coil spring. However, in order to perform the adjustment, it is necessary to replace the leaf spring or the compression coil spring, which is troublesome and cannot be performed. Make fine adjustments.
另外，專利文獻2是因黏性流體而空轉來開放扭矩，但是扭矩開放的動作明確的感測困難，操作人員對於操作邊界的認知上困難，且由於構造特殊，因此成本高而有生產場所‧設備受到限制的問題。Further, Patent Document 2 is idling due to a viscous fluid to open the torque. However, the operation of the torque opening is difficult to perform, and the operator has difficulty in understanding the operation boundary, and because of the special structure, the production cost is high. The device is limited.
本發明是以解決以上的問題為課題的發明。The present invention has been made in an effort to solve the above problems.
為解決上述課題，本發明中，首先提出一種操作桿之扭矩釋放機構，係由：設置在桿主體的輸出軸側的安裝凹部；鎖合在安裝凹部的開口側的環狀蓋體；及安裝在安裝凹部內可於軸方向移動的機構構件所構成，機構構件，係由：具有藉扭矩解除卡合形成可相對轉動之一對卡合構件的離合構件；安裝在該離合構件與環狀蓋體之間的輸出軸支撐構件；支撐在該輸出軸支撐構件，通過環狀蓋體的中央開口部突出的輸出軸；及安裝在上述離合構件與安裝凹部的底部之間的壓縮彈推構件所構成，離合構件為在保持著複數滾珠的滾珠導軌的表內側配置墊圈構件，並在一方側的墊圈構件對應滾珠導軌的滾珠保持孔形成滾珠卡合用凹部的推力滾珠軸承。In order to solve the above problems, the present invention first proposes a torque release mechanism for an operating lever, which is provided by: a mounting recess provided on an output shaft side of the lever main body; an annular cover body that is locked to an opening side of the mounting recess; and mounting a mechanism member movable in the axial direction in the mounting recess, the mechanism member being: a clutch member having a pair of relative rotations formed by a torque release engagement; and a clutch member mounted on the clutch member An output shaft support member between the bodies; an output shaft supported by the output shaft support member through a central opening of the annular cover; and a compression spring member mounted between the clutch member and the bottom of the mounting recess In the clutch member, a washer member is disposed inside the front surface of the ball guide holding the plurality of balls, and the washer member on one side forms a thrust ball bearing of the ball engagement recess corresponding to the ball holding hole of the ball guide.
此外，本發明中，接著提出一種操作桿之扭矩釋放機構，係由：設置在桿主體的輸出軸側的安裝凹部；鎖合在安裝凹部的開口側的環狀蓋體；及安裝在安裝凹部內可於軸方向移動的機構構件所構成，機構構件，係由：具有藉扭矩解除卡合形成可相對轉動之一對卡合構件的離合構件；安裝在該離合構件與環狀蓋體之間的輸出軸支撐構件；支撐在該輸出軸支撐構件，通過環狀蓋體的中央開口部突出的輸出軸；及安裝在上述離合構件與輸出軸支撐構件之間的壓縮彈推構件所構成，離合構件為在保持著複數滾珠的滾珠導軌的表內側配置墊圈構件，並在一方側的墊圈構件對應滾珠導軌的滾珠保持孔形成滾珠卡合用凹部的推力 滾珠軸承。Further, in the present invention, a torque releasing mechanism for an operating lever is provided, which is provided by: a mounting recess provided on the output shaft side of the lever main body; an annular cover body locked to the opening side of the mounting recess; and mounting in the mounting recess The mechanism member is configured to be movable in the axial direction, and the mechanism member is: a clutch member having a pair of relative rotations formed by the torque release engagement; and being disposed between the clutch member and the annular cover An output shaft support member; an output shaft supported by the output shaft support member through a central opening of the annular cover; and a compression spring member mounted between the clutch member and the output shaft support member, clutching In the member, the washer member is disposed on the inside of the surface of the ball guide holding the plurality of balls, and the washer member on one side is formed by the ball holding hole of the ball guide to form the thrust of the ball engagement recess. Ball bearings.
又，本發明提出一種操作桿之扭矩釋放機構，上述的構成中，離合構件是構成齒輪離合機構或摩擦離合機構的構件。Further, the present invention provides a torque release mechanism for an operating lever. In the above configuration, the clutch member is a member constituting a gear clutch mechanism or a friction clutch mechanism.
又，本發明提出一種操作桿之扭矩釋放機構，上述的構成中，推力滾珠軸承是將設置滾珠卡合用凹部的墊圈構件配置在輸出軸支撐構件側的操作桿的扭矩釋放機構，及推力滾珠軸承是將設置滾珠卡合用凹部的墊圈構件配置在安裝凹部的底部側。Moreover, the present invention provides a torque release mechanism for an operating lever. In the above configuration, the thrust ball bearing is a torque release mechanism that arranges a washer member that provides a ball engagement recessed portion on an output shaft support member side, and a thrust ball bearing. The washer member that sets the ball engagement recess is disposed on the bottom side of the mounting recess.
本發明並提出一種在以上的構成中，壓縮彈推構件除了盤簧之外，壓縮螺旋彈簧或彈性體本身的操作桿之扭矩釋放機構。The present invention also proposes a torque releasing mechanism for compressing a coil spring or an operating lever of an elastic body in addition to a coil spring in the above configuration.
以上的構成中，操作桿在一般的使用狀態下，離合構件藉著壓縮彈推構件的彈推力，被壓接在輸出軸支撐構件或安裝凹部的底部，由於一對卡合構件在卡合狀態，因此桿主體的操作中從安裝凹部施加的扭矩是經由離合構件的一對卡合構件傳達至輸出軸支撐構件以至於輸出軸，可轉動驅動連結在輸出軸的病床底部的升降．傾斜機構的致動器等。In the above configuration, in the normal use state, the clutch member is crimped to the bottom of the output shaft support member or the mounting recess by the elastic thrust of the compression spring pushing member, because the pair of engaging members are engaged Therefore, the torque applied from the mounting recess in the operation of the lever main body is transmitted to the output shaft support member via the pair of engaging members of the clutch member so as to the output shaft, and the lifting and lowering of the bottom of the bed connected to the output shaft is rotatably driven. An actuator or the like of the tilt mechanism.
如上述轉動操作操作桿進行底部的升降．傾斜動作，在不能得知到達動作邊界位置持續地進行操作桿的轉動操作時，會導致上述致動器等不能轉動，因此而阻止了輸出軸的轉動，在輸出軸與桿主體之間形成過大扭矩產生的狀態。Rotate the operating lever as described above to lift the bottom. The tilting operation causes the actuator or the like to be unable to rotate when it is not known that the operating lever is continuously rotated to the position of the operating boundary, thereby preventing the rotation of the output shaft and forming an excessively large relationship between the output shaft and the lever body. The state of torque generation.
對此，本發明一旦到達有扭矩值以上時，解除一對卡合構件的卡合而可相對地轉動，如此一來可防止因離合構件空轉造成過大扭矩的產生。On the other hand, when the present invention reaches the torque value or more, the engagement of the pair of engaging members can be released to relatively rotate, thereby preventing the occurrence of excessive torque due to the idling of the clutch member.
如以上狀態持續著操作桿之轉動操作的場合，作為離合構件使用上述推力滾珠軸承或齒輪離合機構的場合時，可對操作桿的操作人員賦予所謂咔喀感與咔喀聲，因此操作人員可藉此容易辨識出動作的邊界位置。When the above operation state continues the operation of the operation lever, when the above-described thrust ball bearing or the gear clutch mechanism is used as the clutch member, the operator of the operation lever can be given a so-called click feeling and a click sound, so that the operator can This makes it easy to identify the boundary position of the action.
解除一對卡合構件卡合所需的扭矩是對應壓縮彈推構件的彈推力，因此藉著該彈推力的調節，可調節進行上述開放動作的扭矩的設定值。本發明藉著鎖合在安裝凹部開口側的環狀蓋體鎖合程度的調節，可容易調節彈推力，也可進行微調。The torque required to release the engagement of the pair of engaging members is the spring force corresponding to the compression spring pushing member. Therefore, by adjusting the spring force, the set value of the torque for performing the above opening operation can be adjusted. According to the invention, the elastic thrust can be easily adjusted and finely adjusted by adjusting the degree of locking of the annular cover on the opening side of the mounting recess.
壓縮彈推構件使用盤簧時，可以節省空間獲得預定的彈推力，但是也可以使用壓縮螺旋彈簧與聚氨酯或橡膠等彈性體本身。When the compression spring pusher member uses a coil spring, space can be saved to obtain a predetermined spring thrust, but a compression coil spring and an elastic body such as polyurethane or rubber itself can also be used.
接著參閱添附圖示說明本發明操作桿之扭矩釋放機構的實施形態。Next, an embodiment of the torque release mechanism of the operating lever of the present invention will be described with reference to the accompanying drawings.
首先，第1圖~第5圖是有關本發明的第1實施形態，該等的圖中符號1為桿主體，該桿主體1的一端側，即在輸出軸側形成安裝凹部2，該安裝凹部2的開口側鎖合環狀蓋體3，並且在安裝凹部2內構成可在軸方向移動機構構件。符號4a為形成在安裝凹部2的開口側內面的內螺紋部，並且符號4b為形成在環狀蓋體3外圍的外螺紋部。First, the first embodiment to the fifth embodiment are the first embodiment of the present invention. In the drawings, reference numeral 1 denotes a lever main body, and one end side of the lever main body 1, that is, a mounting recess 2 is formed on the output shaft side, and the mounting is performed. The opening side of the recess 2 is fitted to the annular cover 3, and the mechanism member is movable in the axial direction in the mounting recess 2. Reference numeral 4a is an internal thread portion formed on the opening side inner surface of the mounting recess 2, and reference numeral 4b is a male screw portion formed on the outer periphery of the annular cover 3.
該實施形態中，機構構件使用推力滾珠軸承作為離合構件12。即，該機構構件，係由：複數片盤簧，該場合為4片重疊構成的壓縮彈推構件5；在保持複數滾珠6的滾珠導軌7表內側配置墊圈構件8、9，並在一方側的墊圈構件8對應滾珠導軌7的滾珠保持孔10形成滾珠卡合用凹部11的推力滾珠軸承12；安裝在推力滾珠軸承12和環狀蓋體3之間的輸出軸支撐構件13；及支撐在該輸出軸支撐構件13，通過環狀蓋體4的中央開口部(省略符號)突出的輸出軸14。In this embodiment, the mechanism member uses a thrust ball bearing as the clutch member 12. That is, the mechanism member is composed of a plurality of coil springs, in this case, four compression projectile members 5 having a superposed overlap; and the gasket members 8 and 9 are disposed on the inner side of the ball guide 7 holding the plurality of balls 6, and on one side The washer member 8 forms the thrust ball bearing 12 of the ball engagement recess 11 corresponding to the ball retaining hole 10 of the ball guide 7; the output shaft support member 13 mounted between the thrust ball bearing 12 and the annular cover 3; The output shaft support member 13 passes through the output shaft 14 that protrudes from the central opening portion (the symbol is omitted) of the annular cover 4.
在此，作為壓縮彈推構件5的盤簧與墊圈構件8、9及滾珠導軌7都具有中央開口部(省略符號)，該等是構成嵌合於從安裝凹部2的底部側朝著開口側突設的引導圓筒部15。Here, the coil springs and the washer members 8 and 9 and the ball guide 7 as the compression spring pushing members 5 each have a central opening portion (not shown) which is fitted to the opening side from the bottom side of the mounting recess 2 The protruding guide cylinder portion 15 is protruded.
如圖表示，該實施形態中，上述機構構件是從安裝凹部2的底部側朝向開口側，依序安裝：盤簧構成的壓縮彈推構件5；墊圈構件9；滾珠導軌7及滾珠6；形成滾珠卡合用凹部11的墊圈構件8；及輸出軸支撐構件13及輸出軸14，並且在安裝凹部2的開口側鎖合環狀蓋體3成使用狀態。As shown in the figure, in the embodiment, the mechanism member is a compression spring pushing member 5 composed of a coil spring, a washer member 9, a ball guide rail 7 and a ball 6; The washer member 8 of the ball engagement recess 11 and the output shaft support member 13 and the output shaft 14 are locked to the open side of the mounting recess 2 in a state of use.
此時，安裝凹部2的內面設置軸方向的複數凹條16，並且對應該凹條16，在滾珠導軌7的外圍設置突部17，嵌合該等將滾得珠導軌7支撐在安裝凹部2，使其僅可軸方向移動。At this time, the inner surface of the mounting recess 2 is provided with a plurality of concave strips 16 in the axial direction, and corresponding to the concave strips 16, a projection 17 is provided on the outer periphery of the ball guide 7, and the fitting of the rolled bead guides 7 is supported in the mounting recesses. 2, so that it can only move in the axial direction.
另一方面，在輸出軸支撐構件13設置嵌合墊圈構件8的凹部，並且在凹部18內設置複數突部19，並在墊圈構件8的外圍設置對應上述突部19的凹部20。因此墊圈構件8是和輸出軸支撐構件13形成一體轉動。因此，也可使該墊圈構件8與輸出軸支撐構件13形成一體的構成。On the other hand, a recessed portion in which the washer member 8 is fitted is provided in the output shaft support member 13, and a plurality of projections 19 are provided in the recessed portion 18, and a recessed portion 20 corresponding to the above-described projection 19 is provided on the periphery of the washer member 8. Therefore, the washer member 8 is integrally rotated with the output shaft support member 13. Therefore, the gasket member 8 and the output shaft support member 13 can be integrally formed.
另外，該實施形態中，在輸出軸支撐構件13與環狀蓋體3間隔設著以防塵‧防水為目的之O環21的構成。並在桿主體1的另外端側設置可摺疊的操作用把手22。Further, in this embodiment, the output shaft support member 13 and the annular cover 3 are spaced apart from each other by the O-ring 21 for the purpose of dustproof and waterproof. A foldable operation handle 22 is provided on the other end side of the lever main body 1.
以上的構成中，操作桿的通常使用狀態是如第4圖表示，藉壓縮彈推構件5的彈推力將推力滾珠軸承12壓接在輸出軸支撐構件13，因此被保持在滾珠導軌7的滾珠保持孔10內的滾珠6卡合於形成在墊圈構件8的卡合用凹部11。並且，滾珠6是藉著壓縮彈推構件5的彈推力被維持在與卡合用凹部11的卡合狀態，因此桿主體1的操作中從安裝凹部2施加於滾珠導軌7的扭矩會經由卡合於卡合用凹部11的滾珠6被傳達至墊圈構件8，並支撐使其不能轉動的輸出軸支撐構件，及輸出軸14，可以轉動驅動連結在輸出軸14的病床底部的升降‧傾斜機構的致動器等。In the above configuration, the normal use state of the operating lever is as shown in Fig. 4, and the thrust ball bearing 12 is crimped to the output shaft support member 13 by the elastic thrust of the compression spring pushing member 5, so that the ball held by the ball guide 7 is held. The balls 6 in the holding hole 10 are engaged with the engagement recesses 11 formed in the gasket member 8. Further, since the ball 6 is maintained in the engagement state with the engagement recess 11 by the elastic thrust of the compression spring pushing member 5, the torque applied to the ball guide 7 from the attachment recess 2 during the operation of the lever main body 1 is engaged. The ball 6 of the engagement recess 11 is transmitted to the washer member 8 and supports the output shaft support member that is not rotatable, and the output shaft 14 is rotatably driven to the lift/elevation mechanism coupled to the bottom of the bed of the output shaft 14. Actuators, etc.
如上述進行操作桿的轉動操作進行底部的升降‧傾斜動作，在不能得知到達動作邊界位置持續地進行操作桿的轉動操作時，會導致上述致動器等不能轉動，因此而阻止了輸出軸14的轉動，會在輸出軸14與桿主體1之間形成過大扭矩產生的狀態。When the operation of the operation lever is performed as described above, the bottom portion is lifted and tilted, and when the operation of the operation lever is not continuously performed, the actuator or the like cannot be rotated, thereby preventing the output shaft. The rotation of 14 causes a state in which excessive torque is generated between the output shaft 14 and the rod main body 1.
對此，本發明一旦到達有扭矩值以上時，由於相對運動使得滾珠6抵抗壓縮彈推構件5的彈推力而從墊圈構件8的卡合用凹部11脫落，因此滾珠導軌7與墊圈構件8是和推力滾珠軸承12的通常動作同樣地相對轉動，如此一來可藉著防止過大扭矩的產生。On the other hand, when the present invention reaches the torque value or more, the ball 6 is detached from the engaging recess 11 of the washer member 8 against the elastic force of the compression spring member 5 due to the relative movement, so the ball guide 7 and the washer member 8 are The normal operation of the thrust ball bearing 12 is also relatively reversed, so as to prevent excessive torque generation.
以上的狀態中持續著操作桿的轉動操作時，滾珠6在墊圈構件8中會依序經由卡合用凹部11與未設置凹部的部位而空轉，即滾珠6持續進行朝著卡合用凹部11的卡合與其解除，可對操作桿的操作人員賦予咔喀感與咔喀聲。因此操作人員可藉此容易辨識到達動作的邊界位置，並具有非常良好的操作感。When the operation of the operation lever is continued in the above state, the balls 6 are idly rotated in the gasket member 8 through the engagement recess 11 and the portion where the recess is not provided, that is, the balls 6 continue to move toward the engagement recess 11 When it is released, the operator of the operating lever can be given a click and a click sound. Therefore, the operator can easily recognize the boundary position of the arrival motion and have a very good operational feeling.
在此，使得滾珠6從卡合用凹部11脫離所需的扭矩是對應壓縮彈推構件5的彈推力，因此藉著該彈推力的調節，可調節進行上述開放動作之扭矩的設定值。Here, the torque required to detach the ball 6 from the engagement recess 11 is the spring force corresponding to the compression spring pushing member 5. Therefore, by adjusting the spring force, the set value of the torque for performing the above-described opening operation can be adjusted.
尤其本發明中，藉著調節鎖合在安裝凹部2開口側的環狀蓋體3的鎖合程度，可容易調節彈推力，並可進行微調。In particular, in the present invention, by adjusting the degree of locking of the annular cover 3 that is locked to the opening side of the mounting recess 2, the spring force can be easily adjusted and fine adjustment can be performed.
如本實施形態表示，使用盤簧5作為壓縮彈推構件5時，可節省空間獲得預定的彈推力。此外，也可以使用壓縮螺旋彈簧或聚氨酯及橡膠等的彈性本身作為壓縮彈推構件5。As shown in the present embodiment, when the coil spring 5 is used as the compression spring pushing member 5, space can be saved to obtain a predetermined spring thrust. Further, as the compression spring member 5, a compression coil spring or an elastic body such as polyurethane or rubber may be used.
以上的實施形態中，作為離合構件的推力滾珠軸承12雖是將設置滾珠卡合用凹部11的墊圈構件8配置在輸出軸支撐構件13側，但是第2實施形態中，與此相反，即如第6圖表示，推力滾珠軸承12也可以將設置滾珠卡合用凹部11的墊圈構件8配置在安裝凹部2的底部側。In the above-described embodiment, the thrust ball bearing 12 as the clutch member is disposed on the output shaft support member 13 side, but the washer member 8 provided with the ball engagement recessed portion 11 is opposite to the second embodiment. 6 shows that the thrust ball bearing 12 may be disposed on the bottom side of the mounting recess 2 with the washer member 8 on which the ball engagement recess 11 is provided.
該實施形態中，對於和上述實施形態相同的構成元件賦予相同的符號省略重複的說明，僅說明不同點。In the embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will not be repeated, and only differences will be described.
亦即，該實施形態是對應形成在安裝凹部2內面的軸方向的複數凹條16，在設置滾珠卡合用凹部11的墊圈構件8的外圍形成突部23，嵌合於上述凹條16，藉以使墊圈構件8對於安裝凹部2，僅支撐使其在軸方向的移動。In other words, in the embodiment, the plurality of concave strips 16 are formed corresponding to the axial direction of the inner surface of the mounting recess 2, and the projections 23 are formed on the outer periphery of the gasket member 8 on which the ball engaging recessed portions 11 are provided, and are fitted to the concave strips 16, Thereby, the washer member 8 is supported only for its movement in the axial direction with respect to the mounting recess 2.
另一方面，輸出軸支撐構件13設有嵌合墊圈構件9與滾珠導軌7的凹部(省略圖示)，並在凹部內設置與上述複數突部19相同的突部，並且在墊圈構件9和滾珠導軌7的外圍分別設置對應該突部的凹部24、25。因而使得墊圈構件9和滾珠導軌7與輸出軸支撐構件13一體轉動。該實施形態中，也可以使墊圈構件9與輸出軸支撐構件13構成一體的構件。On the other hand, the output shaft support member 13 is provided with a recess (not shown) that fits the washer member 9 and the ball guide 7, and a projection similar to the above-described plurality of projections 19 is provided in the recess, and the washer member 9 and The peripheral portions of the ball guide 7 are respectively provided with recesses 24, 25 corresponding to the projections. The washer member 9 and the ball guide 7 are thus integrally rotated with the output shaft support member 13. In this embodiment, the gasket member 9 and the output shaft support member 13 may be integrally formed.
另外，以上的實施形態中，壓縮彈推構件5雖是設置在推力滾珠軸承12和安裝凹部2的底部之間，但是其他實施形態雖省略其圖示，但是也可以將壓縮彈推構件設置在推力滾珠軸承12與輸出軸支撐構件13間。Further, in the above embodiment, the compression spring pushing member 5 is provided between the thrust ball bearing 12 and the bottom of the mounting recess 2, but the other embodiments are not shown, but the compression spring pushing member may be provided at The thrust ball bearing 12 is interposed between the output shaft support member 13.
接著，第7圖、第8圖是有關本發明的第3實施形態，該第3實施形態中，離合構件12是以上述第1、第2實施形態的推力滾珠軸承取代，作為構成齒輪離合機構的構件，並且構成齒輪離合機構的構件之一對卡合構件26、27的一方側卡合構件27是與輸出軸支撐構件13構成一體。除此之外的構成元件是與上述第1、第2實施形態相同，因此賦予對應之構成元件相同的符號並省略其重複說明，僅說明不同點。Next, Fig. 7 and Fig. 8 show a third embodiment of the present invention. In the third embodiment, the clutch member 12 is replaced by the thrust ball bearing of the first and second embodiments as a gear clutch mechanism. One of the members constituting the gear clutch mechanism and one of the engaging members 27 of the engaging members 26 and 27 are integrally formed with the output shaft supporting member 13. The constituent elements other than the above are the same as those of the above-described first and second embodiments. Therefore, the same reference numerals are given to the corresponding constituent elements, and the repeated description thereof will be omitted, and only differences will be described.
即，該實施形態中，具有藉著扭矩解除卡合形成可相對轉動的一對卡合構件26、27的離合構件12是構成齒輪離合機構，在分別的相對面側形成咬合的梯形齒28、29，並且，環狀蓋體3側的卡合構件27是和輸出軸支撐構件13形成一體的構成，並在安裝凹部2側的卡合構件26的外圍設置嵌合於安裝凹部2內之凹條16的突部30的構成。In other words, in the embodiment, the clutch member 12 having the pair of engaging members 26 and 27 that are relatively rotatable by the torque release engagement is a gear clutch mechanism, and the trapezoidal teeth 28 are formed on the opposite surface sides. 29, the engaging member 27 on the side of the annular cover 3 is integrally formed with the output shaft supporting member 13, and a concave portion fitted into the mounting recess 2 is provided on the outer periphery of the engaging member 26 on the side of the mounting recess 2 The configuration of the protrusion 30 of the strip 16.
該實施形態中，同樣將操作桿轉動操作進行底部的升降‧傾斜動作，在不能得知到達動作邊界位置持續地進行操作桿的轉動操作，使得輸出軸與桿主體之間的扭矩到達某程度值以上時，解除一對卡合構件26、27的齒28、29形成的卡合而可相對轉動，如此一來即可防止離合構件12空轉所造成過大扭矩的產生。並且，持續如上述狀態之操作桿的轉動操作時，齒28、29在每重複卡合與其解除時，可對操作桿的操作人員賦予所謂咔喀感與咔喀聲，因此操作人員可藉此容易辨識出動作的邊界位置。In this embodiment, the operation of the lever is also performed to perform the lifting and lowering operation of the bottom portion, and the rotation operation of the operation lever is continuously performed until the position of the movement boundary is not known, so that the torque between the output shaft and the lever body reaches a certain value. In the above case, the engagement of the teeth 28 and 29 of the pair of engaging members 26 and 27 is released to be relatively rotatable, so that the excessive torque generated by the idling of the clutch member 12 can be prevented. Further, when the operation of the operation lever is continued as described above, the teeth 28 and 29 can impart a so-called click feeling and a click sound to the operator of the operation lever every time the repetitive engagement is released, so that the operator can thereby It is easy to recognize the boundary position of the action.
本發明的操作桿之扭矩釋放機構具有以上的效果，並由於構造簡單生產場所或設備不會受到限制，可以廉價生產。The torque release mechanism of the operating lever of the present invention has the above effects, and can be inexpensively produced because the construction site or equipment is not limited in construction.
如上述，本發明除了利用作為使得在醫院、照顧設施或家庭等所使用之升降‧起伏式病床的底部動作的致動器旋轉操作的曲柄狀操作桿之外，在其他各種機器類中，作為使得台或各種構件動作的致動器之轉動操作的曲柄狀操作桿的利用可能性也很大。As described above, the present invention is used in other various types of machines, in addition to the crank-shaped operating lever that is used to rotate the actuator that moves the bottom of the lifting undulating bed used in a hospital, a care facility, or a home. The possibility of utilizing the crank-shaped operating lever that rotates the actuator that moves the table or various members is also large.
1．．．桿主體1. . . Rod body
2．．．安裝凹部2. . . Mounting recess
3．．．環狀蓋體3. . . Annular cover
4a．．．內螺紋4a. . . internal thread
4b．．．外螺紋4b. . . External thread
5．．．壓縮彈推構件(盤簧)5. . . Compression spring pushing member (coil spring)
6．．．滾珠6. . . Ball
7．．．滾珠導軌7. . . Ball guide
8．．．墊圈構件(有凹部)8. . . Washer member (with recess)
9．．．墊圈構件9. . . Washer member
10．．．滾珠保持孔10. . . Ball retaining hole
11．．．卡合用凹部11. . . Engagement recess
12．．．離合構件(推力滾珠軸承、齒輪離合機構的構成構件)12. . . Clutch member (thrust ball bearing, component of gear clutch mechanism)
13．．．輸出軸支撐構件13. . . Output shaft support member
14．．．輸出軸14. . . Output shaft
15．．．引導圓筒部15. . . Guide cylinder
16．．．凹條16. . . Recessed strip
17、19、23、30．．．突部17, 19, 23, 30. . . Projection
18、20、24、25．．．凹部18, 20, 24, 25. . . Concave
21．．．O環twenty one. . . O ring
22．．．把手twenty two. . . handle
26、27．．．卡合構件26, 27. . . Engaging member
28、29．．．齒28, 29. . . tooth
第1圖是表示本發明所涉及操作桿之扭矩釋放機構的第1實施形態之構成元件的擴散分解圖。Fig. 1 is a perspective view showing the diffusion of the constituent elements of the first embodiment of the torque release mechanism of the operating lever according to the present invention.
第2圖是表示從和第1圖不同方向顯示本發明所涉及操作桿之扭矩釋放機構的第1實施形態之構成元件的擴散分解圖。Fig. 2 is a perspective view showing the diffusion of the constituent elements of the first embodiment of the torque release mechanism of the operating lever according to the present invention in a different direction from Fig. 1.
第3圖是立體剖面顯示第1圖表示各元件的擴散分解圖。Fig. 3 is a perspective cross-sectional view showing a diffusion exploded view of each element.
第4圖為第1圖~第3圖表示的操作桿中，傳達扭矩的使用狀態的剖面圖。Fig. 4 is a cross-sectional view showing a state in which torque is transmitted in the operating levers shown in Figs. 1 to 3;
第5圖為第1圖~第3圖表示的操作桿中，開放扭矩的使用狀態的剖面圖。Fig. 5 is a cross-sectional view showing a state in which the opening torque is used in the operating levers shown in Figs. 1 to 3;
第6圖是表示本發明所涉及操作桿之扭矩釋放機構的第2實施形態之構成元件的擴散分解圖。Fig. 6 is a perspective view showing the diffusion of the constituent elements of the second embodiment of the torque release mechanism of the operating lever according to the present invention.
第7圖是表示本發明所涉及操作桿之扭矩釋放機構的第3實施形態之構成元件的擴散分解圖。Fig. 7 is a perspective view showing the diffusion of the constituent elements of the third embodiment of the torque release mechanism of the operating lever according to the present invention.
第8圖是表示從和第7圖不同方向顯示本發明所涉及操作桿之扭矩釋放機構的第3實施形態之構成元件的擴散分解圖。Fig. 8 is a perspective view showing the diffusion of the constituent elements of the third embodiment of the torque release mechanism of the operating lever according to the present invention in a different direction from Fig. 7.
1．．．桿主體1. . . Rod body
2．．．安裝凹部2. . . Mounting recess
3．．．環狀蓋體3. . . Annular cover
4a．．．內螺紋4a. . . internal thread
4b．．．外螺紋4b. . . External thread
5．．．壓縮彈推構件(盤簧)5. . . Compression spring pushing member (coil spring)
6．．．滾珠6. . . Ball
7．．．滾珠導軌7. . . Ball guide
8．．．墊圈構件(有凹部)8. . . Washer member (with recess)
9．．．墊圈構件9. . . Washer member
10．．．滾珠保持孔10. . . Ball retaining hole
12．．．離合構件(推力滾珠軸承、齒輪離合機構的構成構件)12. . . Clutch member (thrust ball bearing, component of gear clutch mechanism)
13．．．輸出軸支撐構件13. . . Output shaft support member
14．．．輸出軸14. . . Output shaft
15．．．引導圓筒部15. . . Guide cylinder
16．．．凹條16. . . Recessed strip
17．．．突部17. . . Projection
20．．．凹部20. . . Concave
21．．．O環twenty one. . . O ring
22．．．把手twenty two. . . handle
Claims (13)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009138929A JP4993225B2 (en) | 2009-06-10 | 2009-06-10 | Torque release mechanism of operation handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201102535A TW201102535A (en) | 2011-01-16 |
| TWI403650B true TWI403650B (en) | 2013-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99109900A TWI403650B (en) | 2009-06-10 | 2010-03-31 | Torque release device for operating lever |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4993225B2 (en) |
| CN (1) | CN101922520B (en) |
| TW (1) | TWI403650B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014210250B4 (en) | 2014-05-28 | 2021-04-01 | Ewellix AB | Adjusting device for a height-adjustable shelf and method for changing the height of a shelf |
| DE102014210253B4 (en) | 2014-05-28 | 2016-02-11 | Aktiebolaget Skf | Transmission for a height-adjustable shelf and method for changing a height of a shelf |
| DE102014216695B4 (en) * | 2014-08-22 | 2022-07-14 | Zf Friedrichshafen Ag | Spacer tube for a power transmission device of a rotary wing aircraft |
| DE202015100681U1 (en) * | 2015-02-12 | 2015-02-23 | Omni Trust Gmbh | Safety coupling for torque limitation |
| CN113531004A (en) * | 2021-07-30 | 2021-10-22 | 脉冲电子（东莞）有限公司 | Overload protection mechanism and speed reducing motor with same |
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| JP2002276847A (en) * | 2001-03-16 | 2002-09-25 | Maezawa Ind Inc | Cap for opening and closing valve |
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| US4386689A (en) * | 1980-08-27 | 1983-06-07 | Taizo Kato | Torque limiter |
| DE29713253U1 (en) * | 1997-07-25 | 1998-11-19 | Beyert, Thomas, 53804 Much | Overload clutch |
| CN2334385Y (en) * | 1998-06-26 | 1999-08-25 | 劦生业股份有限公司 | Patient bed rocker arm device with safety regulation |
| JP2003013993A (en) * | 2001-06-29 | 2003-01-15 | Paramount Bed Co Ltd | Manual operation means having overload releasing mechanism in bed or the like |
| CN101210590B (en) * | 2006-12-26 | 2011-10-05 | 上海三电贝洱汽车空调有限公司 | Torque limiter |
| CN201209632Y (en) * | 2008-06-06 | 2009-03-18 | 无锡创明传动工程有限公司 | Coupler torquemoment overload protection device |
| CN201218291Y (en) * | 2008-07-01 | 2009-04-08 | 张力强 | Anti-overload transmission shaft |
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- 2009-06-10 JP JP2009138929A patent/JP4993225B2/en active Active
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2010
- 2010-03-31 TW TW99109900A patent/TWI403650B/en not_active IP Right Cessation
- 2010-05-14 CN CN201010183533.XA patent/CN101922520B/en active Active
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| TW574089B (en) * | 2000-03-09 | 2004-02-01 | Adolf Wuerth Gmbh & Co Kg | Torque transmission tool |
| JP2002048212A (en) * | 2000-08-04 | 2002-02-15 | Mitsubishi Heavy Ind Ltd | Mechanism for preventing excess torque |
| JP2002276847A (en) * | 2001-03-16 | 2002-09-25 | Maezawa Ind Inc | Cap for opening and closing valve |
| CN1902420A (en) * | 2004-03-26 | 2007-01-24 | 富士金株式会社 | Torque-limiter-equipped handle and fluid controller having the handle |
| TW200600232A (en) * | 2004-06-25 | 2006-01-01 | Chum Power Machinery Corp | A chuck structure with adjustable torque |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4993225B2 (en) | 2012-08-08 |
| JP2010286022A (en) | 2010-12-24 |
| CN101922520A (en) | 2010-12-22 |
| TW201102535A (en) | 2011-01-16 |
| CN101922520B (en) | 2015-06-24 |
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