WO1987007965A1 - Affichages d'instruments - Google Patents

Affichages d'instruments Download PDF

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Publication number
WO1987007965A1
WO1987007965A1 PCT/GB1987/000427 GB8700427W WO8707965A1 WO 1987007965 A1 WO1987007965 A1 WO 1987007965A1 GB 8700427 W GB8700427 W GB 8700427W WO 8707965 A1 WO8707965 A1 WO 8707965A1
Authority
WO
WIPO (PCT)
Prior art keywords
indicator
separator
driven member
actuating mechanism
clock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1987/000427
Other languages
English (en)
Inventor
Richard John Chapman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1987007965A1 publication Critical patent/WO1987007965A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/02—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means
    • G01D5/06—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/04—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc
    • G04B45/046—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc the driving mechanism of the hands being invisible because of special shielding

Definitions

  • This invention relates to instrument displays and , although it has particular application to clocks , the invention is also con ⁇ cerned with such instruments as weighing scales , thermometers , barometers , liquid level indicators and the like .
  • instrument is used for any instrument or meter which displays an analogue quantity by mechanically moving an indicator over a dial or scale (which may or may not be calibrated ) , rather than by giving a digital read-out .
  • dial extends not only to circular instrument faces but to all shapes of instrument face whether planar or otherwise .
  • actuating mechanism w hich moves at least one member which is in the form of an indicator which moves across a dial .
  • Clocks are designed in many different shapes and sizes . However they are almost all bound by the same constraints of including at least two moving members which are in the form of pointers or hands which are mounted on a central shaft which extends from behind the dial of a clock face , where the drive mechanism is situated , to the front face of the clock .
  • a similar design, but with only one pointer is used for many standard measuring instruments , for example speedometers.
  • an instrument including an actuating mechanism which, drives at least one driven member , at least one indicator, and a separator mounted between the driven member and the indicator ; the indicator and driven member each including a magnetic attraction member such that actuation of the actuating mechanism moves the driven member across one surface of the separator and hence , b virtue of the magnetic attraction between the driven member and the indicator, moves the indicator across the opposite surface of the separator which provides a display dial with the actuating mechanism concealed behind the separator , the indicator being of laminar form and arranged for movement across said opposite surface of the separator without any pivotal mounting means or other form of guidance apart from the magnetic attraction between the driven member and the indicator .
  • the indicator and driven member preferably include layers of low friction material on the surfaces thereof which are directed towards the separator so that lo -friction face to face engage ⁇ ment with the separator is obtained and the spacing between the magnetic attraction members of the indicator and the driven member can be kept to a minimum .
  • each magnet may be of magnetic rubber sheet of , for example , two millimeters in thickness so that the weight of the indicator is kept as low as possible and hence the frictional resistance to movement of the indicator over the dial surface is minimised.
  • the actuating mechanism may be a standard clock mechanism which includes a shaft on which a number of pointers or clock hands are mounted. All the standard clock components will be mounted on one side of the separator/dial with a magnet mounted at the end of each clock hand but with the drive mechanism concealed behind the separator/dial so that only the moving indicators are visible.
  • a non-standard drive mechanism comprising a flexible elongate drive element on which the driven member is mounted .
  • the drive element may be in the form of a continuous belt, band or cable which can be guided for movement along a non-circular path .
  • the path can also be of non-planar configuration.
  • a clock which includes an indicator w hich moves along a square or rectangular path .
  • the indicator it is also possible to arrange for the indicator to move along a non-planar path .
  • This non-planar and /or non-circular movement which is obtain ⁇ able by the use of a flexible elongate drive element is of partic ⁇ ular advantage in enabling a wide range of clock designs to be obtained .
  • a clock w hich includes an actuating mechanism which drives a flexible elongate drive element on which a driven member is mounted , at least one indicator , and a separator mounted between the driven member and the indicator; the driven member and indicator being provided with interactive drive means such that, on actuation of the actuating mechanism to move the driven member across one surface of the separator, the Indicator is moved across the opposite surface of the separator which provides a display dial with the actuating mechanism concealed behind the separator .
  • Figure 1 is a schematic view of the actuating mechanism of a first instrument
  • Figure 2 is a plan view of the instrument
  • Figure 3 is a section through the instrument
  • Figure 4 is an expanded detailed view of part X of Figure 3 ;
  • Figure 5 is a schematic perspective view of a second instrument in accordance with the invention
  • Figure 6 is a perspective view of a combined clock and desk tidy ;
  • Figure 7 is a partial view of a combined maximum/minimum thermometer .
  • Figure 8 is a perspective view of a weighing scale .
  • the first instrument shown in Figures 1 to 4 includes an actuating mechanism 1 which is the movement of an alarm clock.
  • the shafts 2 driven by the mechanism 1 are such that three separate hands, 3, 4 and 5 extend from an outer shaft 6, middle shaft 7 and an inner shaft 8 respectively .
  • the "seconds” hand is hand 3 extending from the outer shaft 6, the "minutes” hand 4 extends from the middle shaft 7 and the “hour” hand 5 from the Inner shaft 8.
  • the hands 3, 4 and 5 are fitted to each outward drive shaft by being an interference fit and further secured with a drop of cyanoacrylate adhesive .
  • the lengths of the hands 3 , 4 and 5 vary , the seconds hand 3 being the longest and the hours hand 5 being the shortest.
  • Each hand 3 , 4, 5 comprises a mechanically driven member . Each of the members is rotated about the central axis by the actuating mechanism 1. Co-operating with each of the hands is an indicator 9 , 10 and 11 respectively .
  • the indicators 9 , 10 and 11 are mounted for movement in one plane above a substan ⁇ tially planar separator member 12.
  • Each of the hands 3, 4 , 5 is made of aluminium strip and each hand includes a holder 13 at its end .
  • Each holder is similar to tha t shown in Figure 4 in detail and comprises the end of the arm bent at right angles at its tip with two other pieces of aluminium strip bent and glued to the arm to produce an open box shape with no corners .
  • the sizes of the holders 13 are different for each of the hands 3 , 4, 5.
  • the actuating mechanism 1 and the movable members 3, 4, 5 are mounted on a bracket 14 which is attached to a housing 15 , the housing 15 including the separator- member 12.
  • the bracket 14 is so arranged that the drive centre for the hands
  • the separator 12 is a substantially planar plastics component and lies between the moving members 3, 4, 5 and the indicator 9, 10 and 11 , such that the actuating mechanism 1 and moving members 3 ,
  • Each holder 13 has mounted within it a magnetic attraction member
  • each indicator 9, 10 and 11 is a laminar shape of magnetic rubber sheet 22 with p . t .f .e on its inwardly facing surface 23 and coloured tape 24 on its outwardly facing surface .
  • each of the indicators 9 , 10 , 11 can have a different colour so that , with their differing sizes and colour , they are clearly distinguishable from each other .
  • the hours hand 11 is a square and the minutes hand 10 is an elongate rectangle . Both of these maintain their orientation relative to the centre of the separator 12.
  • the seconds hand 9 is a small square indicator which tends to spin as it rotates around the centre of the separator 12.
  • the co-operating magnets 20 and 22 are arranged to have opposite poles so that they attract one another . As the actuating mechanism
  • the actuating mechanism does not rotate a series of hands but moves a series of continuous belts or bands 25 which describe a square path and on which are mounted mechanically driven members .
  • an indicator 26 on the opposite side of a separator 27 describes a square path which gives the clock a very unusual appearance .
  • each of the indicators 26 is in the form of a piece of rubber magnetic material as described above in relation to Figure 4 and each indicator 26 is arranged for sliding movement over the presented surface of the separator 27.
  • Each of the bands 25 carries a drive member corresponding to the magnetic attraction member 18 of Figure 4 and each drive member incorporates a piece of > rubber magnetic material which is in sliding contact with the inside surface of the separator
  • the belts 25 are guided so that each move in a square path under the control of a drive system (not shown) .
  • Each belt 25 moves in a single plane . If , however, it is desired that the indicators 26 should be moved over a non planar surface , the belts 25 will be replaced by flexible bands or cables and guide means will be provided for causing the driven members carried by the bands or cables to move along the appropriate paths .
  • Figure 6 shows a desk tidy which contains a drive system similar to that of Figure 5 and there are num ⁇ bered scales on each side of the generally elongate housing 28 of the desk tidy. There are two sets of three indicators
  • the indicators 29 which indicate the seconds are at mutually diametrically opposite positions .
  • the indicators 30 which indicate the minutes are similarly at mutually diagonally opposite position, as are the indicators 31 which indicate the hours .
  • Each of the indicators 29 , 30, 31 is in the form of a moulded plastics block which contains a magnet .
  • the magnets within the indicators 29, 30, 31 are disposed at different spacings from the base of the desk tidy so that they do not interfere with one another.
  • the plastics blocks of the minutes indicators 30 are formed with cut-outs , i .e . they provide bridges , to allow for the unimpeded passage of the seconds indicators 29 , and the hours indicators 31 are similarly provided by plastics blocks of bridge formation to afford cut-outs through which both the minutes indicators
  • the indicators 29 , 30 , 31 travel contin- uously around the circumference of the desk tidy which provides a clock which can be viewed from both sides .
  • the drive to the indicators is a direct mechanical drive utilising driving elements which pass through slots in the side wall of the housing or w hich project outwardly beneath the housing side wall .
  • the indicators 29 , 30 and 31 are moved along the scales provided on the outside of the housing 28 by a magnetic drive system corresponding to that shown in Figure 5.
  • FIG. 7 shows a maximum/minimum ther ⁇ mometer in which an operating mechanism for a maximum/ minimum thermometer is contained within a housing 32 and the indication of the maximum temperature is provided by an indicator 33 which slides over a scale 34.
  • the indicator 33 is in the form of a triangular sheet of rubber magnetic material and a similar sheet of magnetic material is located in engagement with the inside surface of the corresponding wall of the housing 32 so that the indicator 33 is moved over the scale 34 to provide an indication of the maximum temperature .
  • the minimum temperature indicator 35 is likewise in the form of a triangular sheet of rubber magnetic material which is movable over a scale 36. The minimum indicator 35 is moved over the scale 36 by means of a similar sheet of magnetic material disposed on the inside surface of the wall of the housing 32 and driven by the conventional mechanism for a maximum/minimum ther ⁇ mometer .
  • FIG 8 this show s a weighing scale which comprises a housing 37 of generally rectangular form and a platform 38 on which a user can stand .
  • An indicator 39 in the form of a strip of rubber magnetic material is arranged for movement over a scale which extends along three sides of the housing 37 and the indicator 39 is arranged so that it slides over the outer surface of the scale whilst a driven member (also including a strip of rubber magnetic material ) moves over the inner surface of the scale .
  • the drive mechanism for moving the driven member will include an appropriate form of cable or band drive system .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toys (AREA)

Abstract

Un instrument tel qu'une horloge ou un compteur comprend un mécanisme d'actionnement (1) qui entraîne au moins un organe entraîné (13) comportant un aimant (20). Le mécanisme d'actionnement (1) et l'organe entraîné (13) sont cachés derrière un séparateur (12) et au moins un indicateur (9, 10, 11) est situé sur la face visible du séparateur (12). Chaque indicateur (9, 10, 11) comprend un aimant (22) et l'agencement est tel qu'à mesure qu'un organe entraîné (13) se déplace sur la face cachée du séparateur (12), il provoque le déplacement de l'indicateur associé (9, 10, 11) par attraction magnétique.
PCT/GB1987/000427 1986-06-20 1987-06-19 Affichages d'instruments Ceased WO1987007965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868615132A GB8615132D0 (en) 1986-06-20 1986-06-20 Clocks & instrument display dial
GB8615132 1986-06-20

Publications (1)

Publication Number Publication Date
WO1987007965A1 true WO1987007965A1 (fr) 1987-12-30

Family

ID=10599832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1987/000427 Ceased WO1987007965A1 (fr) 1986-06-20 1987-06-19 Affichages d'instruments

Country Status (3)

Country Link
AU (1) AU7587487A (fr)
GB (1) GB8615132D0 (fr)
WO (1) WO1987007965A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539220A1 (de) * 1995-10-25 1997-04-30 Wolfgang Eger Wanduhr mit Linearskala und tauchenden auch von der Seite betrachtet abzulesenden Zeitzeiger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US298557A (en) * 1884-05-13 Sainteme diolot
FR1007433A (fr) * 1949-12-27 1952-05-06 Jouet automobile télédirigé
FR2166301A1 (fr) * 1972-01-07 1973-08-17 Aussenard Pierre
DE2547657A1 (de) * 1975-10-24 1977-04-28 Jung Karl Heinz Uhr, insbesondere tisch-, stand-, wanduhr o.dgl.
DE8434517U1 (de) * 1984-11-24 1985-04-11 Wallmeier, Konrad, 3500 Kassel Uhr mit verschiedenen Körpern als Stunden-, Minuten- und Sekundenzeiger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US298557A (en) * 1884-05-13 Sainteme diolot
FR1007433A (fr) * 1949-12-27 1952-05-06 Jouet automobile télédirigé
FR2166301A1 (fr) * 1972-01-07 1973-08-17 Aussenard Pierre
DE2547657A1 (de) * 1975-10-24 1977-04-28 Jung Karl Heinz Uhr, insbesondere tisch-, stand-, wanduhr o.dgl.
DE8434517U1 (de) * 1984-11-24 1985-04-11 Wallmeier, Konrad, 3500 Kassel Uhr mit verschiedenen Körpern als Stunden-, Minuten- und Sekundenzeiger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539220A1 (de) * 1995-10-25 1997-04-30 Wolfgang Eger Wanduhr mit Linearskala und tauchenden auch von der Seite betrachtet abzulesenden Zeitzeiger

Also Published As

Publication number Publication date
AU7587487A (en) 1988-01-12
GB8615132D0 (en) 1986-07-23

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