• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There are disclosed an armature (A) and escape wheel (3) for a mechanical watch for inhibiting the escape wheel (3), in which according to the invention resilient elements (2a, 2b) and bearings (7) are provided for a sprung and rolling contact recording and contact delivery between anchor pallets (2a, 2b) and escape wheel pins. The anchor pallets (2a, 2b) are designed as resilient elements. Upon contact between anchor pallets (2a, 2b) and escape wheel pins, the resilient elements (2a, 2b) effect conversion and storage of kinetic energy of the escape wheel (3) into potential energy which returns to the armature (A) upon exiting the escape wheel pin becomes. The use of the bearings (7) results in contact between the armature (A) and anchor pins only rolling friction and the friction losses are greatly reduced. The drive energy required and the wear of the movement are lower, and the movement of the clock is virtually noiseless. One embodiment has resilient elements on the escape wheel and bearings on the armature.
    公开号:CH713616A2
    申请号:CH00384/17
    申请日:2017-03-23
    公开日:2018-09-28
    发明作者:Schlumpf Florian
    申请人:Schlumpf Innovations Gmbh；
    IPC主号:
    专利说明:

    description
    Technical Field The invention relates to a mechanical timepiece. It relates in particular to the escapement, in particular the anchor and the escape wheel for such a movement.
    Background Art CH 00 347/15 discloses an armature and an escape wheel for a mechanical timepiece. The anchor for inhibiting the escape wheel has two arms, each with an anchor pallet, which are arranged and movable with respect to the escape wheel, that the two anchor pallets alternately engage between escape wheel pins on the escape wheel, come into contact with the escape wheel pins and again donate away from the escape wheel can move. In particular, resilient elements cause a sprung touch receptacle and donate contact between anchor pallets and escape wheel. In addition, the escape wheel on a freewheel. The said armature and the escape wheel cause the kinetic energy contained in the train of gears of the mechanical clock is converted to the armature pallet in the spring impact of the anchor pin in spring energy and stored in the spring to be discharged when leaving the pin away from the anchor pallet again ,
    DESCRIPTION OF THE INVENTION It is the object of the present invention to further develop an armature and an escape wheel of the above-mentioned type in order to further reduce the impact stress on the armature in comparison to those in mechanical watches of the prior art.
    This object is achieved by an armature and an escape wheel according to claim 1.
    The resilient elements cause in the contact between the anchor pallet and a Ankerradstift and stopping the escape wheel, the conversion and storage of at least a portion of the kinetic energy of the escape wheel in potential energy.
    The escapement wheel does not stop abruptly, but is braked gently, cushing the impulse on the anchor pallet. When the armature moves away from the escape wheel, the armature pallet slides off the escape wheel pin, returning the energy stored in the spring member to the escape wheel pin, giving the armature a pulse, and converting the energy stored in the spring back into kinetic energy of the armature. The freewheel on the escape wheel prevents unwanted swing back of the escape wheel and is essential for the function of the escapement.
    The aforementioned inventive bearings now allow a rolling contact between anchor pallets and anchor wheel pins, so that upon their contact over the entire engagement distance of each anchor pin on an anchor pallet no sliding friction but only a rolling friction arises. Since a rolling friction per se, as opposed to a sliding friction is vanishingly small, the frictional losses are greatly reduced in the inventive armature and escape wheel and the energy gain through the use of resilient elements is also realized for the most part.
    The invention is based on the recognition that the friction losses during engagement of the anchor pallet with the anchor pins are not insignificant, especially because the length of the engagement path of the anchor pin on the anchor pallet is relatively long, and that the friction losses a part of the energy gain due to the resilient Destroy elements again. The reduction of the friction loss has a great effect in this case. The effect of the invention can be clearly demonstrated on a watch with the bearings according to the invention. If the bearings are used according to the invention, the concomitant reduction of friction losses causes the pendulum of the clock to swing much more forcefully.
    In a first embodiment of the invention, the resilient elements are arranged on the anchor by the anchor pallets are realized even as a resilient element, wherein the resilient anchor pallets are each firmly connected to the anchor arm. The escape wheel pins on the escape wheel are aligned parallel to the axis of rotation of the escape wheel, with a bearing disposed on each of the anchor pins. The resilient anchor pallets come when engaging in the escape wheel on the rotating bearings on the anchor pins with the escape wheel in touch.
    The storage of the kinetic energy of the escape wheel is achieved in this solution by a spring on the anchor itself, the friction losses between the resilient anchor pallet and the bearing at each of the anchor pins consists only of rolling friction and therefore is very low. The kinetic energy stored in the resilient element of the anchor pallet can therefore be returned almost completely to the armature when the armature swings back.
    In a second embodiment, the resilient elements are arranged on the escape wheel, wherein the escape wheel pins themselves are resilient and extend radially outward from the wheel circumference. The anchor pallets are rigid and firmly connected to the anchor, wherein at each anchor pallet a bearing is arranged, which comes into contact with the resilient armature wheel pins in the engagement of the armature with the escape wheel.
    In a further embodiment of the invention, a combination of these embodiments is possible by resilient elements are present both on the escape wheel and the armature.
    The resilient elements are realized in specific embodiments in each case by leaf springs.
    As a bearing according to the invention ball bearings or bearings are provided, ball bearings are suitable for larger movements and plain bearings for smaller movements. In addition, groove bearings, roller bearings or needle roller bearings for implementing the invention are possible.
    In a further specific embodiment of the invention, the Lagerzweckmässigerweise are made of bronze, preferably sintered bronze.
    The armature and the escape wheel according to the invention provide several advantages in terms of the energy required to drive a mechanical clock. In addition, it provides significant benefits in terms of the life of a movement, by the constant wear of the gear train and the armature is significantly reduced.
    The invention causes a further reduction of the required drive energy and mechanical stress of all moving components of a clock. Thanks to the gentle braking of the escape wheel instead of an abrupt impact, it reduces the wear on all components of the watch. The gentle braking also causes a virtually noiseless gait.
    By reducing the friction losses increases in small clocks with low mass runtime, in clocks and in particular at Monumentaluhren this technique allows a reduction in the forces occurring at the anchor, the escape wheel as in the entire gear train. It reduces mechanical shock, wear and friction losses. The required drive energy, be it a weight or an elevator spring, is thereby further reduced in size. This ultimately results in an increased gear safety.
    Brief Description of the Figures [0017]
    1a and 1b show in a schematic perspective view and front view, respectively, an escape wheel and an armature for a mechanical timepiece according to the first embodiment of the invention with bearings on the escape wheel pins.
    2a and 2b show in a front view and perspective schematic perspective view and front view of an escape wheel and an armature for a mechanical clock according to the second embodiment of the invention with bearings on the anchor pallets of the armature.
    Fig. 3 shows according to view III in Fig. 2a in detail the engagement of a resilient anchor wheel pin in a stocked with a bearing anchor pallet according to the embodiment in Fig. 2a and 2b.
    Fig. 4 shows according to view IV in Fig. 2a, the pawl in detail of the embodiment of Fig. 2a and 2b.
    EMBODIMENTS OF THE INVENTION FIGS. 1a and 1b show the first embodiment of the armature according to the invention, in cooperation with the corresponding escape wheel according to the invention, in which the resilient elements are respectively arranged on the armature and the bearings according to the invention on the armature pins of the escape wheel. An armature A, which oscillates about an axis 1a, has anchor arms 1 and armature pallets 2a and 2b connected to the armature arms 1, which engage in anchor pins 6 of the escape wheel 3. According to the invention, the anchor pallets 2a and 2b are fixedly connected to the armature arms 1 and implemented as resilient elements, in this example as leaf springs. The armature wheel 3, which rotates in the clockwise direction about axis 3a, is provided with ratchet teeth 4 at its circumference, into which a pawl 5, also called freewheel, engages. At the escape wheel 3, a number of anchor pins 6 are arranged at regular intervals at a given radius and aligned parallel to the axis of rotation 3a. According to the invention a bearing 7 is arranged on the anchor pins 6, which come into contact with the resilient elements of the armature upon engagement with the anchor pallets 2a, b of the armature 1. In the example shown, each bearing 7 consists of a plain bearing, a cylindrical sleeve, which rotates about the anchor pin 6. Engages the anchor pallet 2a, as shown, in the escape wheel 3, so comes the leaf spring of the anchor pallet 2a with a sliding bearing 7 into contact and moves towards the center of the escape wheel. The sliding bearing 7 rolls along the leaf spring 2a, which is biased simultaneously. When swinging back the anchor pallet 2a away from the center of the anchor wheel, the sliding bearing 7 rolls again along the leaf spring 2a, which relaxes again and gives their potential energy back to the escape wheel. If the armature A continues to swing, the still relaxed anchor pallet 2b engages in the next escape wheel pin 6 with a slide bearing 7 and undergoes the same rolling movement with a bearing 7 as the anchor pallet 2a by first being pretensioned and then relaxed again during the swinging back. During the entire contact between the armature and escape wheel only rolling friction between a sliding bearing 7 and the resilient anchor pallets and sliding friction losses are eliminated.
    Fig. 2a and 2b show the second embodiment of the invention, in which the resilient elements on the escape wheel and the inventive bearing are arranged on the armature. The armature B has on the armature arms 10 depending on a firmly connected and rigidly executed anchor pallet 11 a, b. Each anchor pallet 11a, b is provided with a bearing 12a or 12b according to the invention. The escape wheel 13, which rotates clockwise about axis 13a, has radially extending from the periphery anchor pins 14a, 14b, said anchor pins themselves are designed as resilient elements, in this example as a leaf spring or spring spoke.
    The escape wheel 13 has, like the escape wheel in the embodiment in Fig. 1a, a ratchet teeth 15 and a pawl or freewheel 16, which is shown in detail in Fig. 4.
    Upon engagement of the armature B with the escape wheel 13 is in each case a bearing 12a, b with the resilient element of the anchor pins 14a, 14b in contact. The engagement of the armature B with the anchor pins 14a, 14b of the escape wheel 13 is analogous to that in the first embodiment in Fig. 1a, 1b, wherein the resilient elements not on the anchor pallets but on the anchor pins and the bearings not on the escape wheel but on the Anchor pallets are located. If the armature B engages in the escape wheel 13, the bearing 12a comes into contact with the resilient element 14a, the armature pin of the escape wheel 13, the leaf spring gradually biasing as the spring rolls along the bearing. When swinging back the anchor, the potential energy of the spring is released again and the spring relaxed again. The second anchor pallet 11 b then engages with the next still relaxed anchor pin 14 b, which repeats the rolling on the bearing 12 b, bias and relaxation of the spring of the anchor pin.
    Again, during the entire contact between the armature and the escape wheel, only rolling friction occurs between the bearings 12a, b and the resilient anchor pins 14a, 14b.
    Fig. 3 shows in detail the engagement of the armature B in the escape wheel 13 and the contact and rolling of the bearing 11a on the spring of the anchor pin 14a.
    [0020] A anchor I anchor arm 1a anchor axis 2a anchor pallet prestressed 2b anchor pallet relaxed 3 escape wheel 3a axis 4 ratchet toothing 5 pawl 6 anchor wheel pin 7 Bearings, plain bearings B Anchor 10 Anchor arm 10a Anchor axis II Anchor pallet 12a, 12b Bearing 13 Anchor wheel 13a Axis 14a Anchor pin prestressed 14b Anchor pin relaxed 15 ratchet teeth 16 pawl
    权利要求:
    Claims (5)
    [1]
    1. Anchor (A, B) and escape wheel (3, 13) for a mechanical clock, wherein the armature (A, B) for inhibiting the escape wheel (3, 13) and two arms (1, 10), each with an anchor pallet (2a, b, 11a, b) which are so arranged and movable with respect to the escape wheel (3, 13), wherein the two anchor pallets (2a, b, 11a, b) between escape wheel pins (6, 14a, 14b) on Engage wheel (3, 13), with the escape wheel pins (6, 14 a, 14 b) come into contact and can move away from them again, and wherein resilient elements (2 a, b, 14 a, 14 b) for a spring-loaded contact recording and between Anchor pallets (2a, b, 11a, b) and escape wheel pins (6, 14a, 14b) are present, and the escape wheel (3, 13) has a freewheel (16), characterized in that for receiving the contact and the power transmission between the Anchor pins (6, 14a, 14b) on the escape wheel (3, 13) and the anchor pallets (2a, b, 11a, b) on the armature (A, B) ball bearings, plain bearings (7, 12a, 12b), groove bearing, roller nlager or needle roller bearings are provided.
    [2]
    2. anchor (A, B) and escape wheel (3, 13) according to claim 1, characterized in that the resilient elements (2a, b) are arranged on the armature (A) by the anchor pallets (2a, b) realized as a resilient element are, wherein the anchor pallets (2a, b) respectively fixedly connected to the anchor arm (1) and the anchor pins (6) are aligned parallel to the axis of rotation (3a) of the escape wheel (3) and at each of the escape wheel pins (6) a bearing ( 7) is arranged, which in the interaction between the escape wheel (3) and the armature (A) comes into contact with the resilient element of the anchor pallet (2a, b).
    [3]
    3. Anchor (A, B) and escape wheel (3,13) according to claim 1, characterized in that the resilient elements (14a, 14b) on the escape wheel (13) are arranged, wherein the Ankerradstifte (14a, 14b) are resilient and extend radially outwardly from the periphery of the escape wheel (13) and the anchor pallets (11a, b) are rigid and fixedly connected to the anchor, with each armature pallet (11a, 14b) having a bearing (7) disposed therein of the armature (B) with the escape wheel (13) with the resilient armature wheel pins (14a, 14b) comes into contact.
    [4]
    4. anchor (Aa) and escape wheel (2) according to claim 1, 2 or 3, characterized in that the bearings (7) are made of bronze.
    [5]
    5. Anchor (Aa) and escape wheel (2) according to any one of claims 1-4, characterized in that the resilient elements (2a, b, 14a, 14b) each consist of a leaf spring.
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    同族专利:
    公开号 | 公开日
    CH713616B1|2020-11-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00384/17A|CH713616B1|2017-03-23|2017-03-23|Lever escapement for a mechanical clockwork.|CH00384/17A| CH713616B1|2017-03-23|2017-03-23|Lever escapement for a mechanical clockwork.|
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