CH713226A1 - Clock display device. - Google Patents

Abstract

The invention relates to a display device for a watch information comprising: - a support (3); - At least a first indicator (101) mounted on the support, - A spring system (4) integral with the support, respectively of the first indicator, - A first cam secured to the first indicator, respectively of the support, and cooperating with the system to spring, - a set of watch information indications comprising at least a first subset and a second subset of indications of watch information respectively arranged in at least a first trajectory (220), in particular a curve and a second trajectory (221), in particular a curve parallel to the first trajectory, the indicator being positioned so as to point or display an indication of a horological information among all the indications of the horological information.

Description

Description: [0001] The invention relates to a device for displaying a watch information item comprising: a support, a first indicator, a spring secured to the support, a first cam integral with the first indicator and at least a first and a second sub-indicator. sets of watch information indications.

[0002] There is known from the prior art devices for displaying horological information and in particular for the date.

The patent application CH-707 971 mentions a device resulting in a plurality of wheels allowing a mobile to move so as to display the date on two concentric circles. The objective of the invention is to allow a reading of the date by arranging the even and odd dates on two supports integral with the frame of the watch, this in order to display the date by means of a mobile moving at will changes of dates.

The watch shown in patent EP-0 950 932 comprises a display device of the pseu-do type retrograde type on a semicircle with two diametrically opposed indexes. The watch makes it possible to position an index out of service and to guarantee a constant locking of the two indexes, so as to prevent any inadvertent movement.

The patent application WO 9 210 794 discloses a watch comprising two electric motors for driving a disc having the 31 calendars of the month arranged on two concentric circles and arranged so as to show the date in a window. The first motor moves the disk in rotation while the second motor drives the disk in translation alternately in two display positions. The calendars are arranged on two concentric circles on the disc.

The patent CH 532 808 proposes a display solution by an indication device of the date and the day of the week thus allowing to present these two horological information in a format larger than that allowed by the conventional devices of this type. The invention comprises in particular two disks, of which a first disk has the calendars arranged in two concentric circles, the even calendars being on a first circle and the odd dates lying on a second circle and a second disk containing the days of the week arranged in double according to two other concentric circles alternating with first wickets. The two disks are superimposed and arranged so as to display the dates in the first windows. The assembly cooperates with a second window provided in a dial to display the day and the current day.

The patent application SU 1 146 623 has a date display device, the even dates being arranged on a first portion of a drum and the odd dates being arranged on a second portion of the drum. A rocker is able to switch between two positions so as to hide a right or left part of a date display window.

The object of the invention is to provide an alternative display device known devices, which is simple and whose operation is robust.

Disclosure of the invention [0009] For this purpose, a display device according to the invention is defined by claim 1.

Different embodiments of the device are defined by claims 2 to 12.

A watch mechanism according to the invention is defined by claim 13.

A watch movement according to the invention is defined by claim 14.

A timepiece according to the invention is defined by claim 15.

Brief Description of the Drawings [0014] These objects, characteristics and advantage of the present invention will be set out in detail in the following description of a particular embodiment made in a nonlimiting manner in relation to the attached figures among which:

Figs. 1a and 1b are top and bottom views of an embodiment of a display device according to the invention.

Fig. 2 is a partial exploded view of the embodiment of the display device of a watch information according to the invention.

Figs. 3a, 3b and 3c are top views of an embodiment of a timepiece according to the invention with and without a dial on which different dates are displayed.

Fig. 4 is a partial view of the embodiment of the display device showing jumping and correcting means.

Fig. 5 is a partial sectional perspective view of the embodiment of the display device.

Figs. 6 and 7 are top views of the embodiment of the display device, the device displaying the date "1" in FIG. 6 and the date "2" in FIG. 7.

Figs. 8 to 14 are views illustrating a succession of transient states of the device between a first stable position shown in FIG. 8 and a second stable position illustrated in FIG. 14.

An embodiment of a timepiece 120 according to the invention is described below with reference to FIGS. 1a to 14.

The timepiece 120 comprises an embodiment of a watch movement 110 according to the invention, in particular a mechanical movement. The timepiece is in particular a wristwatch.

The watch movement comprises an embodiment of a display mechanism 105.

The display mechanism comprises an embodiment of a display device 100 of a watch information indication 2, in particular a date display device 2.

The display device 100 comprises a support 3, a first indicator 101, a spring system 4, a first cam 5 and at least a first 320 and a second 321 sub-sets of watch information indications 2 .

[0020] Preferably, the spring system and the first cam are arranged to define a first stable position of the at least one first indicator and a second stable position of the at least one first indicator in which the at least one first indicator points or displays respectively an indication of a watch information of the first subset of indications of the watch information or an indication of a watch information of the second subset of indications of the watch information.

The support 3 comprises a ring gear 6, a toothed wheel 7 and two arms 9. Each arm 9 comprises an upper arm 91 and a lower arm 92. The gear wheel is mounted on the ring gear. The gear wheel has 62 teeth. For example, four holes are provided on the ring gear or on the toothed wheel and four threads 13 are provided on the toothed wheel or on the ring gear. Four screws 14 pass through the holes and are targeted in the threads. Alternatively, the toothed wheel can be mounted by other means on the crown, for example they can form a single piece. The ring comprises openings 15. The arms extend outside the periphery of the ring radially relative to an axis A1 of symmetry of the ring. The arms have an overall shape in T. The upper arms are fixed on the crown. The lower arms form an extension of the crown. Fixing the upper arms on the crown is for example with two holes on each arm. The support has four tappings 17. Positioning spacers 18 arranged on the ring are provided at the lower arms to keep the lower and upper arms at a distance from each other. Four screws 19 pass through the holes and are fixed in the threads. The two pairs of upper and lower arms are preferably identical. The two pairs of arms are advantageously positioned at 180 ° relative to each other relative to the axis A1. The function of the arms is to guide each indicator 101, 102. The support 3 is rotatably mounted in the watch movement about the axis A1. In particular, it is rotatably mounted on a frame 20. A jumper 10 is fixed on the frame. The jumper cooperates with the teeth of the toothed wheel so as to index the support in position. The movement comprises a date finger 11 arranged to cooperate with the toothed wheel to advance one step every 24 hours. Alternatively, the support may have only one arm and therefore guide a single indicator. Advantageously, in this case, the toothed wheel comprises only 31 teeth and / or the watch information indications are distributed over 360 °.

The first indicator 101 comprises a pallet 1, a shaft 8, a first cam 5 and a second cam 55. The first indicator is linked by a pivot connection of axis A2 parallel to the axis A1 to the support 3. In FIG. in particular, the pivot connection is made between the lower arm 92 and upper 91, on the one hand, and the first indicator 101, on the other hand. More specifically, the pivot connection is made at the end of the arms. The shaft comprises several bearing surfaces 81, 82 and 83. A first bearing surface 81 is intended to cooperate with a lower guide ring 811 so as to guide the first indicator in rotation along the axis A2. The lower guide ring is embedded in a bore of the lower arm 92. The first bearing is also adapted to support the first cam. The first cam is mounted in slide connection on the shaft 8, for example with two pins 551 planted in the first scope. Once the first indicator is assembled, the first cam is fixed relative to the shaft. Alternatively, the first cam could be chased on the tree. The two pins are in particular arranged at 180 ° relative to each other along the axis A2. The first cam is provided with a bore capable of cooperating with the first bearing of the shaft. The bore comprises two grooves 552 and 553 provided to cooperate with the pins 551. A second bearing 82 is intended to cooperate with an upper guide ring 821 so as to guide the first indicator in rotation along the axis A2. The upper ring is embedded in a bore of the upper arm 91. A third bearing 83 is intended to cooperate with the pallet. The pallet is linked in recess on the shaft at the level of the third range. For example, the palette is chased on the third staff. The pallet is traversed by the axis A2 at one end thereof. The pallet is of substantially rectangular shape. In the case of a rectangular pallet, the pallet is for example traversed by the axis A2 at a small side thereof. The visible surface of the pallet is red, more generally the visible surface of the pallet is of a bright color and / or a color contrasting with the color of the watch information indications. The pallet is arranged under a dial 115 bearing the watch information indications. The pallet has dimensions allowing the reading of the indications. The pallet is of length substantially equal to the length taken by the indications. The pallet is of width substantially equal to the width taken by the indications. The first cam has an outer profile 554 adapted to cooperate with a spring system.

The spring system comprises a lever 41 (or hammer) and a spring 42. A face 43 of the lever 41 rests in contact against the outer profile 554 of the first cam 5. The profile 554 has a first zone Zm1 characterized by a minimum distance R1 to the axis A2 and a second zone Zm2 characterized by the minimum distance R1 to the axis A2. These two zones are preferably arranged at 180 ° to each other relative to the axis A2. The profile also has a third zone Zm1 characterized by a maximum distance R2 to the axis A2 and a fourth zone Zm2 characterized by the maximum distance R2 to the axis A2. These two zones are preferably arranged at 180 ° to each other relative to the axis A2.

The spring 42 is preferably a leaf spring. The shape of the spring system is substantially V. The base of the V is mounted on the lower arm 92. The base of the V is pivotally mounted about an axis A3, shown in Figs. 5 and 8, parallel to the axes A1 and A2. A pin 400 whose axis coincides with the axis A3 is planted in the lower arm. The pin 400 cooperates with a bore 401 provided in the spring system to achieve the pivot connection. The spring system is disposed between the lower arm 92 and the upper arm 91. The spring bears against a pin 44. The pin 44 is planted in the lower arm. One wing of the V is the lever and the other wing is the spring. The V is advantageously monobloc.

A second cam 55 and the shaft 8 are for example monobloc. The second cam 55 has a variable radius between a minimum and a maximum. The second cam comprises a large radius RCi adapted to a portion of the profile of the second cam interferes with obstacles 210 during a rotation of the support. The second cam comprises a small radius RC2apte that another portion of the profile of the second cam does not interfere with the obstacles 210 during a rotation of the support. These two spokes are for example arranged 180 ° to each other relative to the axis A2.

The first subset of watch information indications 2 comprises, in this embodiment, the odd date indications arranged in increasing order along a first path 220, including a curve. The first trajectory, in particular a first arc 220, visible in FIG. 6, extends over an angle substantially equal to 180 °. The axis A1 is the axis of the arc 220. The first subset of indications of watch information 2 is supported by the dial 115. The first trajectory is the trajectory that would describe the indicator 101 during of one month if he remained in his first stable position shown in fig. 6.

The second subset of watch information 2 comprises, in this embodiment, the indications of equal dates arranged in ascending order along a second path 221, including a curve. The second trajectory, in particular a second circular arc 221, visible in FIG. 6, extends over an angle substantially equal to 180 °. The second arc has a radius less than the radius of the first arc. The second arc is centered on the A1 axis. The second subset of watch information 2 is supported by the dial 115. The second trajectory is the trajectory that the indicator 101 would describe during a month if it remained in its second stable position shown in FIG. 7.

Even and odd dates are for example printed on the dial. In the embodiment shown, the dial is transparent or partially transparent and the indications are printed on the dial. Advantageously, the dial also comprises a translucent or opaque angular sector 106, or a mask, intended to mask an indicator when it is not active as will be described below.

An elementary interval specific to the watch information considered separates two successive horological information. This elementary interval is usually a unit. In particular, it can also be a day in the case of days of the week. Advantageously, the indication of the first of the two horological information forms part of the first subset of indications and the indication of the second of the two horological information forms part of the second subset of horological information. Thus, the indications can be arranged in staggered rows and distributed between the two subassemblies.

The obstacles are mounted in full connection on the frame or on the dial. The obstacles are, for example, arranged along a third curve 230 and along a fourth curve 231. The third curve and the fourth curve form, in particular, respectively a third circular arc 230 and a fourth circular arc 231. The axis A1 is the axis of the first and second concentric arc. The first arc and the second arc extend at an angle of 180 ° or about 180 °. The radius of the first arc is greater than the radius of the second concentric arc.

In the embodiment shown, the watch indications 2 displayed are dates. However, the watch information may be days of the week, and / or months, and / or years, and / or the number of the week, and / or the hour, and / or the minute, and / or the second, and / or the moon phases.

In the embodiment described, the pointing or display of the indication of the watch information by the first indicator 101 is by means of the pallet, in particular a palette that is colored or in contrast with the color of the indications of the watch. horological information, arranged under the watch information 2. The positioning of the pallet under an indication brings out this indication among the set of all the indications.

According to another embodiment, the pointing or the display of the horological information can be achieved by a transparent palette colored or contrasting with the color of the watch information indications which is arranged above the indication. watchmaking information.

According to another embodiment, the pointing or display of the watch information can be achieved by a pallet provided with a window, the pallet being arranged above the watch information indication.

According to another embodiment, the pointing or display of the watch information can be achieved by a needle. Advantageously, according to this other embodiment, the needle can be arranged below, above or at the same level as the indication of the watch information. The needle may carry a circle at its end, the circle being arranged below, above or at the same level as the indication of the watch information to point this indication. Any other indicator means may be used.

The operation of the embodiment mentioned above is described below: Consider a timepiece including the display device 100 of a watch information, including the calendar of the current month. Without loss of generality, we consider that it is 23:59, the first day of a given month. In order to give this horological information, the indicator 101 indicates the date number 1 as represented in FIG. 6, the pallet being positioned under the indication "1". In this position, the support 3 being in the stationary position and the first cam 5 is in one of its stable equilibrium positions. When the 60th second of the minute previously considered has elapsed, the date finger 11 rotates the toothed wheel by the cooperation between the date finger and a tooth of the toothed wheel 7. These elements are illustrated in FIG. . 4 to have a view of the elements used in the training of the support 3 to perform the date jump.

The support 3 comprising the toothed wheel 7 undergoes a displacement around the axis A1. The support carries with it the spring system 4 and the first 101 and second 102 indicators. When moving the support, as shown in Figs. 9 to 11, the second cam 55 encounters in its path an obstacle 210 forming part of the plurality of obstacles that can be arranged at regular intervals. Part of the obstacles is visible for example in Figs. 8 to 14. The support travel continues, the second cam 55 abuts against the obstacle and rotates accordingly around the axis A2 of the shaft with which it is secured. The first cam 5 and the pallet 1 are also integral with the shaft, they also rotate. The first cam 5 leaves a stable equilibrium position in which it was before the second cam 55 encounters an obstacle 210.

Indeed, since the stable position shown in FIG. 8, when the support has made a fraction of a step, the second cam 55 comes into contact with an obstacle 210 as shown in FIG. 9. Thus, the first indicator rotates as shown in Figs. 9, 10 and 11 under the effect of the action of the obstacle 210 on the second cam 55. The first cam 5 returns to a stable equilibrium position when the second cam 55 is no longer in contact with the obstacle 210 as illustrated in FIG. 7 where the support 3 is in the stationary position and the first cam 5 is in one of its stable equilibrium positions.

Furthermore, the geometry of the profile 554 of the first cam 5 is such that by cooperation with the spring system 4, the first cam has two positions of rest or stable equilibrium around the axis A2. The cooperation of the first cam and the spring system is achieved by the support of the face 43 of the lever 41 against the profile of the first cam as visible for example in FIGS. 8 to 14.

When the second cam 55 rotates about the axis A2 of the shaft 8, this rotation is transmitted to the first cam via the shaft A2. Thus, by the rotation of the first cam, the spring 42 will be armed by means of the lever 41. The spring thus sees its voltage increase. Once reached a maximum voltage, that is to say when the face 43 of the lever 41 is in contact with the Zm2 zone of the first cam, the first cam is in unstable equilibrium and the spring has in this position a potential energy maximum elasticity. By releasing its elastic energy, the spring 42 is able to reduce and then maintain the first cam in a stable position opposite to the stable position occupied by the first cam 5 before winding the spring. The positions of the first cam 5 are stable when the spring has a minimum elastic energy, that is to say when the face 43 of the lever 41 is in contact with the zone Zm1 of the first cam 5. In FIG. 2b, the kinematics of cooperation between the first cam 5 and the spring system 4, as well as the evolution of the mechanical stresses to which the spring is subjected, are shown.

As seen previously, in FIG. 8, the first indicator 101 is in stable equilibrium position with respect to the support, the face 43 of the lever 41 bears against the zone Zm2 of the first cam and the spring thus has a minimum elastic energy. In fig. 9, the support 3 has begun to rotate around the axis A1. The second cam 55 comes into contact with an obstacle 210 thereby forcing the second cam to rotate about the axis A2. Turning around the axis A2, the second cam 55 also rotates the first cam 5 about this axis. The face of the lever remains in contact with the profile of the first cam via the spring 42. By turning about the axis A2, the radius of the first cam in contact with the lever increases. Increasing the radius has the effect of increasing the tension of the spring. Figs. 10 and 11 show the evolution of the rotation of the first indicator. The second cam is always in contact against the obstacle thus forcing the rotation of the first cam about the axis A2 as the support 3 rotates. In figs. 10 and 11, the tension in the spring increases as the radius of contact between the first cam 5 and the face 43 of the lever increases. Fig. 11 shows the face 43 of the lever 41 against the Zm2 area where the radius is maximum. At this moment, the spring undergoes a maximum tension and the equilibrium of the first cam is unstable. The spring then has a maximum elastic energy. The second cam 55 and the obstacle 210 are still in contact at this moment. Fig. 12 shows the positioning of the pallet and the cams for a moment after the passage of the unstable equilibrium position. In this configuration, the lever releases the energy of the spring by pressing against the profile 554 of the first cam 5 so as to bring the first indicator in position such that the face of the lever is in contact against the zone Zm1 opposite to the position shown in fig. 8. In this configuration, the second cam 55 is no longer in contact with the obstacle. In fig. 13, the first indicator 101 is again in a stable position. The movement of the support 3 then continues to the position shown in FIG. 14. Figs. 8 and 14 show the first cam 5, and therefore the first indicator 101, in two opposite stable positions relative to the axis A2.

Thus, during the rotation of a pitch around the axis A1 of the support 3, the first indicator 101 performs two distinct movements: a rotation of an angular pitch around the axis A1 (1/62 of turn around the axis A1) and simultaneously the first indicator undergoes a second movement which is a rotation of a half turn around the axis A2. The first indicator 101 thus passes from a first stable equilibrium position to a second stable equilibrium position. These two movements make it possible to pass the first indicator 101 from a first position pointing the indication "n" in the second subset as shown in FIG. 8 at the second position pointing the indication "n + 1" in the first subassembly as shown in FIG. 14, with n a natural number between 1 and 30.

In the embodiment described, the second cam 55 alternately encounters, during the rotation of the support, an obstacle disposed on the third obstacle curve, and an obstacle disposed on the fourth obstacle curve.

In the embodiment described above, when the current month has 31 days, for example the month of December, the passage of the last calendar of the month, that is to say the date number 31, the first date of the next month, that is to say the date number 1, is done in a different way. Indeed, the arrangement of the watch information indications, in this case the date, extending only about 180 °, two pallets are disposed diametrically opposite position relative to the support 3 in order to be able to make a display transition . To understand this transition, we first need to describe the kinematics of the first indicator under date 31 at 23:59 in December and describe in a second step the kinematics of the second indicator in position before the date display. number 1 at midnight in January.

Regarding the first indicator under the date 31 to 23:59, when switching to midnight, the kinematics remains the same as that described above during the transition from the date number 1 to the date number 2, that is to say that is to say that the first indicator will again undergo two movements, a rotation of an angular pitch around the axis A1 and a rotation of a half-turn around the axis A2. Once these movements are made, the first indicator is found advantageously hidden and invisible to the user. Preferably, over the next 180 ° of the rotation of the support around the axis A1, the first indicator no longer encounters any obstacle. Thus, the first indicator 101 no longer changes its stable position relative to the support, but it only makes angular increments around the axis A1. Advantageously, the first indicator remains hidden under the mask 106 provided for this purpose until the last day of the current month. The first indicator remains inactive for one month, in our example until January 31, and January 31 at 23:59 the first indicator is not visible. During the transition from January 31 to February 1 at midnight, the first indicator will undergo the same kinematics as described above (two rotational movements) and display the date 1 or point to the indication "1". When the first indicator 101 disappears or leaves its position pointing to the indication of the last value of the watch information, the second indicator 102 appears or arrives in a position pointing to the indication of the first value of the watch information.

When the current month has a duration less than 31 days, for example during a month of April, the transition from the number 30 to the number 1 for the month of May, is done manually. To do this, the display device comprises a control member 415, in particular a control lever 414 which, when it is tilted in one direction, makes it possible to advance the gearwheel 7 by one step, and when it is tilted into a In another opposite direction, the gearwheel 7 can be moved back one step. The rotation of one pitch of the toothed wheel causes the first and second indicators to move as described above. The latch 414 is biased into an intermediate position by a spring 413.

In the embodiment described, the toothed wheel is formed of 62 teeth, this in order to perform 1 / 62nd of a turn at each increment at midnight and therefore to have an active indicator every other month is that is, each indicator displays or indicates watch information during a given time interval, in particular one month, and then does not display or indicate watch information during a following time interval, in particular the following month. The two time intervals are therefore without intersection. The first and second indicators are alternately active. Their activity states are preferably exclusive: when one is active, the other is inactive.

In the embodiment described, the date indications are arranged in concentric half-circles. However, the date indications could alternatively be arranged otherwise. For example, the date indications could be arranged in two concentric circles over 360 ° or could be arranged along two parallel straight line segments. In the latter case, the indicator could be embedded on a retrograde system.

Claims (15)

In the embodiment described, the support is movable relative to the frame and the date indications and obstacles are fixed relative to the frame. However, in another embodiment not shown, the support is fixed relative to the frame and the date indications and obstacles are movable relative to the frame. For example, date indications and obstacles can be embedded on the same mobile system relative to the frame. In this other embodiment, the support can be constituted directly by the frame. Thus, the indicator or indicators can be mounted mobile directly on the frame. claims 1. Device (100) for displaying a watch information comprising: - a support (3); - At least a first indicator (101) mounted on the support, - A spring system (4) secured to the support, respectively the first indicator, - A first cam (5) integral with the first indicator, respectively of the support, and cooperating with the spring system, - a set of indications (2) of horological information comprising at least a first subset (320) and a second subset (321) of watch information indications (2) respectively arranged according to at least one first trajectory (220), in particular a curve and a second trajectory (221), in particular a curve parallel to the first trajectory, - the indicator being positioned so as to point or display an indication of a clock information among all indications of watch information. 2. Device according to the preceding claim, characterized in that the spring system comprises a lever or hammer (41) and a spring (42), the spring biasing the lever or hammer against the first cam. 3. Device according to one of the preceding claims, characterized in that two indications of successive horological information and separated from an elementary interval specific to the information considered, are respectively part of the first and second subsets. 4. Device according to one of the preceding claims, characterized in that the first path is a first arc and / or the second path is a second arc. 5. Device according to one of the preceding claims, characterized in that the watch information is calendars or days of the week or months or years or the number of the week or hour or minute or second or the moon phases. 6. Device according to one of the preceding claims, characterized in that it comprises a dial (115), in particular a transparent dial bearing the watch information indications. 7. Device according to one of the preceding claims, characterized in that the device comprises obstacles (210) and a second cam (55) integral with the first indicator or forming part of the first indicator, the obstacles and the second cam being arranged to cooperate together by obstacle. 8. Device according to the preceding claim, characterized in that the obstacles are arranged in a third curve (230), in particular an arc of a circle, and a fourth curve (231), including a circular arc, the third and fourth curves being parallel. 9. Device according to one of the preceding claims, characterized in that the first indicator includes: - a shaft (8), - the first cam, - a second cam (55), the first cam and the second cam being fixed on the tree. 10. Device according to one of the preceding claims, characterized in that: a. the first indicator comprises a pallet (1), in particular a colored pallet, arranged under the indication of horological information, and / or b. the first indicator comprises a needle arranged above the watch information indication or at the same level, and / or c. the first indicator comprises a needle bearing a circle at its end arranged above the watch information indication, and / or d. the first indicator comprises a colored transparent pallet arranged above the watch information indication, and / or e. the first indicator comprises a pallet provided with a window, the pallet being arranged above the indication of watch information, so as to point or display an indication of watch information. 11. Device according to one of the preceding claims, characterized in that the device comprises a second indicator (102), in particular a second indicator of the same structure or identical to the first indicator and / or a second indicator mounted on the support in a configuration. diametrically opposed relative to the first indicator relative to an axis (A1) of rotation of the support. 12. Device according to one of the preceding claims, characterized in that the first indicator is connected to the support by a pivot connection and / or in that the spring system is pivotally mounted on the support and / or in that the support is pivotally mounted on a frame (20). Clock mechanism (105) comprising one or more display devices (100) according to one of the preceding claims. 14. Movement (110) watchmaker comprising a mechanism according to the preceding claim or one or more display devices (100) according to one of claims 1 to 12. 15. Timepiece (120), in particular a wristwatch, comprising a movement according to the preceding claim or a mechanism according to claim 13 or one or more display devices (100) according to one of claims 1 to 12. .