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131. 发明申请

US20090266123A1 Lock Device with a Lock Cylinder and a Key 有权
标题翻译：锁定装置与锁缸和钥匙
公开(公告)号：US20090266123A1
公开(公告)日：2009-10-29
申请号：US11991617
申请日：2006-08-12
申请人： Ulrich Mueller , Matthias Habecke , Dirk Jacob
发明人： Ulrich Mueller , Matthias Habecke , Dirk Jacob
IPC分类号： E05B29/14 , E05B29/02 , E05B29/10 , E05B27/06
CPC分类号： E05B19/0029 , E05B29/00 , Y10T70/7508 , Y10T70/7559 , Y10T70/7565 , Y10T70/7599 , Y10T70/7695 , Y10T70/7881
摘要： The invention relates to a lock device comprising a key and a lock cylinder, said lock cylinder comprising a fixed cylinder housing and a cylinder core mounted to rotate therein. The key shaft (10.3) has an edge profile and may be inserted in a key way of the cylinder core in which displaceable tumblers (41, 42) are located transverse to the above. The key shaft (10.3) has profiled recesses running in the longitudinal direction, comprising a pair of follow points for each tumbler (41, 42) for coding the key, whilst the tumbler (41, 42) has a pair of counter follow points which are the basis of the corresponding counter coding. According to this invention, a space-saving design of the lock device may be achieved with a large range of variation for the coding wherein both follow points are on the key shaft (10.3) in the form of recesses, arranged on opposing lateral surfaces to an edge (57.2; 57.3) of the edge profile of the key shaft (10.3). A web (22; 23) is thus generated in the corner region of the edge profile between both recesses. Said web functions a code web (22; 23), as the opposing web edges serve for the coding. The corresponding tumblers (41, 42) have a cut-out, which in use enclose the code web (22; 23) on opposing web edges. The lateral limits of the cut-out form the counter follow points in the tumblers (41, 42).
摘要翻译：本发明涉及一种包括钥匙和锁芯的锁定装置，所述锁芯包括固定筒体和安装成在其中旋转的筒芯。钥匙轴（10.3）具有边缘轮廓并且可以以气缸芯的关键方式插入，可移动的制动栓（41,42）横向于上述位置。钥匙轴（10.3）具有在纵向方向上延伸的成型凹槽，包括用于对钥匙进行编码的每个翻转开关（41,42）的一对跟随点，而翻转开关（41,42）具有一对计数器跟随点，是相应计数器编码的基础。根据本发明，可以实现锁定装置的节省空间的设计，其具有用于编码的大范围变化，其中两个跟随点都以凹槽的形式位于键轴（10.3）上，布置在相对的侧表面上钥匙轴（10.3）的边缘轮廓的边缘（57.2; 57.3）。因此，在两个凹部之间的边缘轮廓的角部区域中产生腹板（22; 23）。所述web功能代码网（22; 23），因为相对的web边缘用于编码。相应的翻转开关（41,42）具有切口，其在使用中将代码幅（22; 23）包围在相对的卷边边缘上。切口的横向限制形成柜台跟随点（41,42）。

132. 发明授权

US5970762A Lock plug assembly and a tumbler with a bent-over end therefor 失效
标题翻译：锁塞组件和带有弯曲端的转鼓
公开(公告)号：US5970762A
公开(公告)日：1999-10-26
申请号：US728887
申请日：1996-10-10
申请人： Gary L. Myers , Stanislav Jezek
发明人： Gary L. Myers , Stanislav Jezek
IPC分类号： E05B29/00 , E05B29/04 , E05B29/02
CPC分类号： E05B29/00 , Y10T70/7599 , Y10T70/765 , Y10T70/7695 , Y10T70/7944
摘要： A reciprocating combinating tumbler for a lock plug assembly which includes a flat body portion and a bent-over (or enlarged) end portion is provided for use with a lock plug barrel having a generally cylindrical outer periphery, a longitudinal axis, a keyway slot formed substantially along the longitudinal axis, and a plurality of spaced-apart cavities formed substantially perpendicular to the keyway slot. In use, the tumbler reciprocates between an extended position wherein the bent-over end portion is spaced radially outwardly of the outer periphery of the lock plug barrel and protrudes into a longitudinal spline formed in the aperture of a housing, and a retracted position wherein the bent-over end portion is spaced radially inwardly of the outer periphery of the barrel and does not protrudes into the longitudinal spline. When the tumbler is in the extended position, the bent-over end portion provides resistance to cutting, shearing, and breaking by supplying additional surface contact between the bent-over end portion of the tumbler and the longitudinal spline of the aperture thereby making it more difficult to force the tumbler through the plastic material which surrounds the longitudinal spline. The tumbler is movable into the retracted position when the keyway slot of the barrel and the opening of the flat body portion is received by a properly-fitting key.
摘要翻译：提供一种用于锁定塞组件的往复式组合制动栓，其包括平坦主体部分和弯曲（或扩大的）端部，用于与具有大致圆柱形的外周边，纵向轴线，形成的键槽槽的锁定塞桶基本上沿着纵向轴线，以及基本上垂直于键槽槽形成的多个间隔开的空腔。在使用中，转鼓在延伸位置之间往复运动，其中弯曲端部分在径向向外位于锁栓筒的外周边之间并且突出到形成在壳体的孔中的纵向花键和缩回位置，其中，弯曲端部在筒的外周边的径向内侧间隔开，并且不会突出到纵向花键中。当转鼓处于伸展位置时，弯曲端部通过在转鼓的弯曲端部和孔的纵向花键之间提供额外的表面接触来提供对切割，剪切和断裂的阻力，从而使其更多难以迫使滚筒穿过围绕纵向花键的塑料材料。当桶的键槽槽和平坦主体部分的开口通过适当的键接收时，转鼓可移动到缩回位置。

133. 发明授权

US5964110A Key lock with removable plug 失效
标题翻译：钥匙锁可拆卸插头
公开(公告)号：US5964110A
公开(公告)日：1999-10-12
申请号：US968178
申请日：1997-11-12
申请人： John J. Crocco , John J. Velinski
发明人： John J. Crocco , John J. Velinski
IPC分类号： E05B9/08 , E05B29/02
CPC分类号： E05B9/086 , Y10T70/7446 , Y10T70/765 , Y10T70/7944
摘要： A lock with a keyed removable plug having a substantially cylindrical body, and a plurality of tumblers disposed within the body and movable between a first position retracted within the cylindrical body of the plug and a second position with one end extending from the body. A retaining tab extends radially from the plug body at an angle from the radial orientation of the tumblers. A shell has a substantially cylindrical opening therein for removably receiving the plug in a first shell end. The shell further includes an annular shoulder spaced from the first shell end and engageable by the plug retaining tab and a retaining one of the tumblers when in its second position. Tumbler grooves extend axially along the sides of the shell opening from the first shell end to a groove end short of the shoulder, and a release groove extends axially along the shell opening from the first shell end to the shoulder to define an opening in the shoulder. Engagement of either the retaining tab or the retaining tumbler with the annular shoulder retains the plug in the shell. An operating key engages the tumblers to orient all but the retaining tumbler in the first position to permit pivoting of the plug within the shell with at least one of the retaining tab and the retaining tumbler aligned with the shell shoulder to retain the plug in the shell. A removing key engages the tumblers to orient all of the tumblers in the first position to permit pivoting of the plug within the shell to a removal position in which the retaining tab is aligned with the release groove.
摘要翻译：具有带有基本上圆柱形主体的带钥匙的可拆卸插头的锁和多个设置在主体内的翻转开关，可在插入插头的圆柱体内的第一位置和从主体延伸的一端的第二位置之间移动。保持突片从栓塞本体的径向方向以与制动栓的径向方向成一定角度延伸。壳体具有基本上圆柱形的开口，用于在第一壳端部中可拆卸地接收插塞。壳体还包括与第一壳体端部间隔开并且可由插头保持突片接合的环形肩部，并且在处于其第二位置时保持其中一个制动栓。滚筒槽沿壳体开口的侧面从第一壳体端部轴向延伸到不足于肩部的凹槽端部，并且释放槽沿着壳体开口从第一壳体端部轴向延伸到肩部以在肩部中限定开口。保持片或保持转鼓与环形肩部的接合将插头保持在外壳中。操作键与滚筒相配合，以便将保持转鼓的所有位置定位在第一位置，以允许插头在壳体内枢转，其中至少一个保持凸片和保持滚筒与壳体肩部对准以将插头保持在壳体中。拆卸钥匙接合翻转开关以将所有翻转开关定位在第一位置，以允许插塞在壳体内枢转到移除位置，在该位置，保持片与释放槽对齐。

134. 发明授权

US5287712A Locking arrangement consisting of key and lock cylinder 失效
标题翻译：钥匙和锁芯组成的锁定装置
公开(公告)号：US5287712A
公开(公告)日：1994-02-22
申请号：US911572
申请日：1992-07-10
申请人： Giselher Sieg
发明人： Giselher Sieg
IPC分类号： E05B27/08 , E05B19/00 , E05B19/02 , E05B19/06 , E05B19/08 , E05B27/00 , E05B29/02 , E05B35/10
CPC分类号： E05B19/0029 , E05B27/0053 , Y10T70/7503 , Y10T70/7864 , Y10T70/7881
摘要： The locking arrangement consists of key a and lock cylinder with a guide cross section provided on the rear of the key shank and with profiled longitudinal ribs arranged on the broad face for entry into associated grooves of the lock cylinder key channel. Transversely to the profiled longitudinal ribs, there are provided wards which issue from one narrow edge of the key shank and, in their depth, follow the unit or multiple of the step jump (x) of the lock cylinder core pins. At least the lower rib flank facing the narrow edge of the key shank is perpendicular to the longitudinal center plane of the key shank and the distance of the lower rib flanks from one another is equal. The lower rib flanks are arranged at a distance from one another corresponding to the unit or integral multiple of the step jump (x) and in such a way that the deepest points of the wards are at the level of the lower rib flanks which externally pass tangentially into convexly shaped curved end faces which run tangentially into the upper rib flanks.
摘要翻译：锁定装置由钥匙a和锁芯组成，其具有设置在钥匙柄后部的引导横截面，并且具有布置在宽面上的纵向肋条，以进入锁芯钥匙通道的相关槽。相对于成型的纵向肋条，提供了从钥匙柄的一个窄边缘发出的区域，并且在它们的深度上，跟随锁芯筒销的步进跳跃（x）的单位或倍数。至少面向钥匙柄的窄边缘的下肋腹部垂直于钥匙柄的纵向中心平面，并且下肋骨侧面彼此之间的距离相等。下肋腹部彼此相对应的距离彼此相对应，或者以步进跳跃（x）的整数倍为单位，并且以这样一种方式布置，使得病房的最深点位于外侧通过的下肋侧翼的水平处切向地形成凸形的弯曲端面，其切向进入上肋侧面。

135. 发明授权

US4686843A Cylinderlock-key-combination 失效
标题翻译：气缸锁键组合
公开(公告)号：US4686843A
公开(公告)日：1987-08-18
申请号：US846879
申请日：1986-04-01
申请人： Kaarlo Martikainen , Kyosti Nevalainen
发明人： Kaarlo Martikainen , Kyosti Nevalainen
IPC分类号： E05B21/06 , E05B29/02
CPC分类号： E05B21/066 , Y10T70/7633 , Y10T70/8595
摘要： The invention relates to disc cylinder lock-key-combination, including a cylinder housing (1), and inside thereof, a turnable inner cylinder (2), which encloses a set of discs comprising a number of locking discs (3,4) provided with peripheral notches (8) and separated from one another by means of intermediate discs (5), and a locking bar (10), which in the locked position of the lock is located partly in a groove in the cylinder housing and partly in a slot (9) in the inner cylinder thereby preventing the inner cylinder to be turned with regard to the cylinder housing. The locking discs (3,4) are turnable by means of the key (12) of the lock into a position, in which the peripheral notches (8) form a uniform channel at the position of said slot (9) of the inner cylinder, into which channel the locking bar (10) can enter from the groove of the cylinder housing thereby releasing the inner cylinder to turn with regard to the cylinder housing. In accordance with the invention a guiding element (18), cooperating with the key (12) and extending at least substantially across the axial length of the set of discs, is arranged in the keyway formed jointly by the key openings (6,7) of the discs (3,4,5) in the set of discs. The lock includes further at least one member (3,23) turning continuously with the key when the key is turned in the lock, to which member the guiding element (18) is supported and from which the guiding element (18) is arranged to receive its guidance.
摘要翻译：本发明涉及一种包括气缸壳体（1）及其内部的可旋转的内筒（2）的盘式圆筒锁定钥匙组合件，其包围一组包括多个提供的锁定盘（3,4）的盘具有周边凹口（8）并且通过中间盘（5）彼此分离，并且锁定杆（10）在锁定的锁定位置部分地位于气缸壳体中的凹槽中并且部分地位于槽（9），从而防止内筒相对于缸体转动。锁定盘（3,4）可通过锁的钥匙（12）旋转到一个位置，在该位置，周边凹口（8）在内筒的所述槽（9）的位置处形成均匀的通道，锁定杆（10）可以从气缸壳体的凹槽进入哪个通道，从而释放内筒相对于气缸壳体转动。根据本发明，与钥匙（12）配合并至少基本上跨过该组盘的轴向长度延伸的导向元件（18）布置在由钥匙孔（6,7）共同形成的键槽中，的碟片（3,4,5）。当钥匙在锁中转动时，该锁还包括至少一个构件（3,23），该构件（3,23）在键处被转动时连续地转动，引导元件（18）被支撑在该构件上，导向元件（18）从该构件接受指导。

136. 发明授权

US4672827A Disc tumbler lock with removable plug 失效
标题翻译：碟形滚筒锁与可拆卸插头
公开(公告)号：US4672827A
公开(公告)日：1987-06-16
申请号：US669538
申请日：1984-11-08
申请人： Clark E. Craig
发明人： Clark E. Craig
IPC分类号： E05B9/08 , E05B29/02
CPC分类号： E05B9/086 , Y10T70/7638 , Y10T70/765 , Y10T70/7695
摘要： A cylinder lock with a removable plug incorporates a series of spring biased combinating disc tumblers which cooperate with a first key in normal lock operation. An additional, unbiased control tumbler at the end of the plug cooperates with a retention flange associated with the cylinder to retain the plug against removal from the cylinder while permitting rotation of the plug in the cylinder. The control tumbler includes a notch for receipt of the first key as well as a second, plug removal key. The first key acts against one edge of the notch to displace the control tumbler into a position which ensures that the tumbler will remain engaged with the plug retention flange regardless of the orientation of the plug. The second key includes special bitting adapted to engage a separate second edge of the notch associated with the control tumbler to translate the control tumbler such that when the plug is rotated appropriately, the control tumbler is oriented to slide through an axial or longitudinal groove in the cylinder thus permitting removal of the plug from the cylinder.
摘要翻译：具有可拆卸插头的气缸锁包括一系列弹簧偏压组合盘式制动栓，其在正常锁定操作中与第一钥匙配合。在插头端部附加的另外一个无偏压的控制翻转开关与一个与气缸相关联的保持凸缘配合，以保持插头不被从气缸中取出，同时允许插头在气缸中旋转。控制翻转开关包括用于接收第一键的凹口以及第二个插头移除键。第一键作用在凹口的一个边缘上，以将控制翻转开关移动到一个位置，以确保翻转开关与插头保持凸缘保持接合，而不管插头的方向如何。第二个键包括适于接合与控制翻转开关相关联的凹口的单独的第二边缘的特殊的接头，以平移控制翻转开关，使得当插头被适当地旋转时，控制翻转开关被定向成滑动通过轴向或纵向凹槽从而允许从气缸中取出塞子。

137. 发明授权

US4418554A Key operated locking mechanism 失效
标题翻译：钥匙锁定机构
公开(公告)号：US4418554A
公开(公告)日：1983-12-06
申请号：US302005
申请日：1981-09-15
申请人： Gunter Wolfgang
发明人： Gunter Wolfgang
IPC分类号： B60R25/021 , E05B29/00 , E05B29/02 , E05B29/04
CPC分类号： B60R25/02118 , E05B29/0026 , Y10T70/7576 , Y10T70/7582
摘要： A key operated locking mechanism comprises a cylinder housing, an axially displaceable cylinder core which rotates in a cylindrical opening in the cylinder housing and which is movable axially between a locking position and an unlocking position, a locking bolt movable by said core between locking and unlocking positions, and plate tumblers on said core which project, in the axially displaced locking position of the cylinder core, beyond the external surface thereof when the key has been withdrawn. In the cylindrical opening in the cylinder housing there is provided at least one contact surface, which is arranged so as to be transverse of the lock axis and is directed towards the locking bolt, for cooperation with a portion of at least one of said plate tumblers that surmounts the cylinder core surface at a point with which the surmounting portion is in abutting contact in that axial position of the cylinder core in which the locking bolt is in its locking position.
摘要翻译：钥匙操作的锁定机构包括：气缸壳体，可轴向移动的气缸芯，其在气缸壳体中的圆柱形开口中旋转，并且可在锁定位置和解锁位置之间轴向移动;锁定螺栓，其可在锁定和解锁之间由所述铁芯移动位置和在所述芯上的板式翻转开关，当所述键已经被取出时，在所述芯部的轴向移动的锁定位置中突出超过其外表面。在气缸壳体中的圆柱形开口中设置有至少一个接触表面，该接触表面布置成横向于锁定轴线并被引向锁定螺栓，用于与至少一个所述板式翻转开关的一部分配合在锁定螺栓处于其锁定位置的气缸芯的轴向位置处，在超过该部分抵接的位置处的气缸芯表面超越。

138. 发明授权

US4416129A Cylinder lock with key removable plug 失效
标题翻译：带钥匙可拆插头的气缸锁
公开(公告)号：US4416129A
公开(公告)日：1983-11-22
申请号：US270501
申请日：1981-06-04
申请人： Robert P. Thimot
发明人： Robert P. Thimot
IPC分类号： E05B9/08 , E05B29/04 , E05B15/14 , E05B29/02
CPC分类号： E05B9/086 , Y10T70/765 , Y10T70/7695
摘要： A cylinder lock with a shell defining a plug cavity, a plurality of locking shell tumblerways, and a control shell tumblerway. A plug is rotatable within the plug cavity and defines a plurality of locking plug tumblerways alignable with the locking shell tumblerways, a control plug tumblerway alignable with the control shell tumblerway and a keyway for receiving keys. Positioned within each of the locking plug tumblerways is a locking tumbler that is biased into an active position wherein it projects into one of the locking shell tumblerways and movable into an inactive position out of the tumblerway by a proper key in the keyway. The locking tumblers prevent rotation of the plug when in their active positions and allow rotation thereof when in their inactive positions. Retained by the control plug tumblerway is a control tumbler biased in a latched position and movable into a release position by a control key in the keyway. Also defined by the shell is an arcuate groove that receives ends of the control tumbler so as to accommodate rotational movement of the plug while preventing axial movement thereof. After use of a proper key to rotate the plug from a locked position to an open position, an end of the control tumbler can be forced into the control shell tumblerway by a control key in the keyway. Entry of the control tumbler into the control shell tumblerway eliminates axial interference between the control tumbler and the groove.
摘要翻译：具有限定插塞空腔的壳体的圆筒锁，多个锁定壳体翻转开关和控制壳体滚筒。插头可在插塞空腔内旋转并且限定可与锁定壳体滚筒对准的多个锁定塞子翻转开口，可与控制壳体滚筒对准的控制插头滚筒和用于接收键的键槽。定位在每个锁栓塞翻转开口内的是一个锁定翻转开关，其被偏压到主动位置，其中它通过键槽中的适当的键移动到锁定壳体翻盖之一并且可移动到无人驾驶位置离开滚筒。锁定翻转开关在其处于其有效位置时防止插头的旋转，并且当处于其非活动位置时允许其旋转。通过控制插头滚筒保持的是控制翻转开关，其在锁定位置偏置并通过键槽中的控制键移动到释放位置。还由壳体限定的是弓形凹槽，其接收控制翻转开关的端部，以便容纳插头的旋转运动，同时防止其轴向移动。在使用适当的钥匙将塞子从锁定位置旋转到打开位置之后，控制翻转开关的一端可以通过键槽中的控制键被迫进入控制壳体滚筒。将控制滚筒进入控制壳滚筒消除了控制翻转开关和凹槽之间的轴向干涉。

139. 发明授权

US4407147A Peripheral key tumbler lock 失效
标题翻译：外围钥匙翻转锁
公开(公告)号：US4407147A
公开(公告)日：1983-10-04
申请号：US218720
申请日：1980-12-22
申请人： Wayne F. Larson
发明人： Wayne F. Larson
IPC分类号： E05B21/06 , E05B29/02
CPC分类号： E05B21/066 , Y10T70/7627 , Y10T70/787 , Y10T70/7881
摘要： A two-stage tumbler lock wherein there are two sets of discs, one set being actuatable by a key to free the second set for unlocking movement under the influence of the key. The invention also contemplates a lock designed to receive a peripheral key to cause the above operations.The invention further contemplates a dog leg key particularly a peripheral dog leg key for effecting the above operations.The invention still further contemplates a lock having a peripherally located reset member which makes picking most difficult. A further feature of the lock and its key is that the two coact to perform their intended functions in a manner such that the key cannot be withdrawn from the lock until it is returned to the position it first assumed when inserted into the lock.Another feature of the invention is a disc lock in which the discs have spaced lugs defining the extent of disc movement in regard to a locking member.A still further feature of the invention is the provision of a set of plugs in the lock coacting with an axial member and plural discs.
摘要翻译：一种两级制动栓锁，其中有两组盘，一组可由钥匙致动，以释放第二组以在钥匙的影响下解锁运动。本发明还考虑了设计用于接收外围键以引起上述操作的锁。本发明进一步考虑了狗腿钥匙，特别是用于实现上述操作的外围狗腿钥匙。本发明还进一步设想一种具有外围定位的复位构件的锁，这使得挑选最困难。锁的另一个特征及其关键在于，两个共同体以这样一种方式执行其预期功能，使得键不能从锁中撤回，直到其返回到其插入锁中首先假定的位置为止。本发明的另一个特征是盘锁，其中盘具有间隔的凸耳，其限定相对于锁定构件的盘移动的程度。本发明的另一个特征是提供一组与轴组件和多个盘共同作用的插头。

140. 发明授权

US4400955A Duplex lock 失效
标题翻译：双面锁
公开(公告)号：US4400955A
公开(公告)日：1983-08-30
申请号：US312463
申请日：1981-10-19
申请人： Benito Di Motta
发明人： Benito Di Motta
IPC分类号： E05B29/04 , E05B29/00 , E05B35/10 , E05B15/14 , E05B29/02 , E05B35/12
CPC分类号： E05B29/00 , Y10T70/7458 , Y10T70/7633 , Y10T70/7695 , Y10T70/7944
摘要： A duplex lock codable by a master key and releasable by a duplex key and comprising a first fixed hollow cylindrical body in which a second cylindrical body is rotatably mounted. An axially shiftable slider is firmly secured to the second cylindrical body for locking it relative to the first cylindrical body by insertion in a cavity provided at the bottom of the first cylindrical body. When the slider is withdrawn, the two cylindrical bodies are released. The slider is provided with a plurality of axially spaced recesses which by axial movement of the slider can be brought into alignment with a plurality of apertures in the rotatable cylindrical body. Each of the apertures accommodates a U-shaped rocker lever having a front U-shaped end facing the slider and a rear end attached to a helical spring tending to pull the rocker lever toward an abutment surface in the interior of the rotatable cylindrical body. When the master key is inserted in the rotatable cylindrical body, the legs formed by the U-shaped ends of the rocker levers are lifted and swung into the recesses in the slider and when the duplex key is inserted axially in the rotatable cylindrical body adjacent the master key, the legs of the rocker levers are lifted and swung by the same amount in the opposite direction, resulting in centering of the slider and permitting it to be withdrawn axially to open the lock.
摘要翻译：双重锁可由主密钥编码并可由双工密钥释放，并且包括第一固定中空圆筒体，第二圆柱体可旋转地安装在该圆筒体中。可轴向移动的滑块牢固地固定到第二圆柱形主体上，用于通过插入设置在第一圆柱体底部的空腔中来相对于第一圆柱体锁定它。当滑块被拉出时，两个圆柱体被释放。滑块设置有多个轴向间隔的凹部，其通过滑动件的轴向运动可以与可旋转的圆柱体中的多个孔对准。每个孔容纳U型摇杆，其具有面向滑动件的前U形端，并且后端附接到螺旋弹簧，倾斜以将摇杆拉向可旋转圆柱体的内部中的邻接表面。当主钥匙插入可旋转的圆柱体中时，由摇臂的U形端形成的支腿被提升并摆动到滑块中的凹槽中，并且当双向键被轴向地插入在相邻的可旋转圆柱体中时主键，摇杆的腿部被提升并以相反方向摆动相同的量，导致滑块居中并允许其轴向拉出以打开锁。

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