Racing speedometer

Abstract

A speedometer device for indicating an average velocity of a moving object and a watch comprising such a speedometer device, the speedometer device comprising a timer and an actuator for manually actuating the timer when the object passes a start mark, and stopping the timer when the object passes a predetermined distance from the start mark. They also include a housing, a scale for indicating an average velocity of the moving object, and a pointer for indicating a measured average velocity on the scale, wherein the measured average velocity is derived from the predetermined distance and the time taken to travel the predetermined distance measured by the timer. The scale is designed as a scale part which is detachably arranged on the housing. The scale member is selected from a group of scale members including a plurality of different scale members, each scale member having a scale provided with a speed indicating unit for indicating a speed range corresponding to a different predetermined distance.

Description

Technical Field

[0001] The invention relates to a speedometer device according to the preamble of claim 1, comprising a speed scale and a pointer movable along the speed scale to indicate the speed of a moving object, such as a motor vehicle or a boat. In particular, the invention relates to a racing speedometer device for vehicle racing. Background Art

[0002] Stopwatches and timers with speedometer functions are used to measure and indicate the average speed of a moving object (such as a car, motorcycle or boat) based on the distance traveled during a time interval. They include a scale indicating the speed unit, such as kilometers, miles or nautical miles per hour. When the moving object passes the start mark, the stopwatch starts timing and once the moving object has traveled a known distance, the stopwatch stops timing at a second mark. The pointer indicates the resulting average speed on the scale. In addition, it is difficult to accurately identify when the car reaches the predetermined distance from the start mark. Therefore, the timer may stop at an inaccurate moment, resulting in errors in the speed indication.

[0003] It is known to provide a speedometer device on a watch. For example, document DE 10 2007 005 592 A1 discloses a watch comprising a circular speed scale displayed on the frame of the watch. A first speed scale comprises three concentric rows of speed units to cover a speed range between 125 km / h and 178 km / h for indicating the speed during the race. A second speed scale arranged concentrically inside the first speed scale covers a speed range between 140 km / h and 260 km / h for indicating the speed during the test. When the car passes the start mark, a button is used to start the timer, and when the car reaches a second mark located a predetermined distance after the start mark, the button is used to stop the timer. A pointer rotates around the central axis of the scale to indicate the average speed of the object on the first scale and the second scale. A third scale is located inside the two average speed scales and is used to indicate which of the three concentric rows of the first speed scale should be used to read the average speed. As a result, the dial of such a watch is covered with indicators that are difficult to read and difficult to distinguish. The speed reading obtained from such a watch is easily inaccurate. Summary of the invention

[0004] An object of the present invention is to provide a speedometer device which reliably reflects the average speed of a moving object, covers a wide range of speed indications, covers a wide range of predetermined distances, facilitates accurate speed readings, allows simple operation of the device, and provides instant average speed readings for a variety of predetermined distances.

[0005] These and other objects are achieved by a tachymeter device according to independent claim 1 and a watch according to independent claim 10. Advantageous features and preferred embodiments of the tachymeter device and the watch according to the invention are disclosed in dependent claims 2 to 9.

[0006] According to the present invention, a speedometer device for indicating the average speed of a moving object comprises a timer and a starter, the starter being used to manually start the timer when the object passes a start mark, and to stop the timer when the object passes a predetermined distance from the start mark. The timer is used to measure the time required for the moving object to travel the predetermined distance. In addition, the speedometer device comprises a housing, on which a scale for indicating the average speed of the moving object and a pointer for indicating the measured average speed on the scale are arranged, wherein the measured average speed is derived from the predetermined distance and the time required for the moving object to travel the predetermined distance measured by the timer. The scale on the housing of the speedometer device according to the present invention is designed as a scale component detachably arranged on the housing. In addition, the scale component is selected from a group of scale components, the group of scale components comprising a plurality of different scale components, each scale component having a scale provided with a speed indication unit, the speed indication unit being used to indicate a speed range corresponding to different predetermined distances. The group of scale components is provided together with the speedometer device. The user of the device can select to use the scale component corresponding to the predetermined distance to be traveled by the moving object.

[0007] The speedometer device according to the invention can be easily adapted to measure average speeds at various different predetermined distances. The scale component corresponding to one predetermined distance can be simply removed from the housing, while another scale component corresponding to another predetermined distance can be subsequently attached to the housing. In this way, the speedometer device can be used, for example, for different racing processes for cars or motorcycles, for different regattas for ships or for different racing processes for horse races. Advantageously, the speed indicating unit on each scale component covers typical average speed values ​​for each different predetermined distance of a specific moving object. In addition, the distances between the speed indicating units can be adjusted so that the extended length of the scale matches the size of the scale component and there are no speed indicating units overlapping each other. In this way, the measured average speed can be easily and accurately read out on the scale component.

[0008] Therefore, in one embodiment of the speedometer device of the present invention, each scale component in the set of scale components may correspond to a known race track with different predetermined distances defined for each different scale component, and the speed indicating units on the scale components for the predetermined race track cover the range of typical average speeds of moving objects on the predetermined race track. Preferably, the distances between the speed indicating units on the scale components are selected so that the scale covers only one row of indicating units to keep the scale neat and easy to read.

[0009] In a preferred embodiment of the speedometer device, the speed indicating unit on the scale component for the predetermined track covers a range from the average speed of the slowest moving object on the track to the average speed of the fastest moving object on the track. For example, the predetermined track used with the speedometer device and its corresponding scale component are respectively a racing track for cars and a scale component of the speedometer device for measuring the average speed of cars on different predetermined tracks. In this case, the speed indicating unit on the scale component for the predetermined track can cover a range from the average speed of the slowest car driving on the track on a rainy day to the average speed of the fastest car driving on the track on a sunny day. In addition, it is preferred that the scale component indicates the fastest speed record of the predetermined track that has been reached by a moving object (such as a car). In this way, the racing performance of the moving object can be easily compared with the past racing results of such moving object. Optionally, the scale part also indicates the slowest speed of the moving object on the predetermined track.

[0010] Preferably, the distances between the speed indicating units on the scale member are chosen so that the scale covers only one row of indicating units, in order to keep the scale neat and easy to read.

[0011] In another embodiment of the speedometer device according to the present invention, the scale components in the set of scale components are designed as a circular bezel of a watch, wherein the speed indicating units on the bezel for indicating the speed range are displayed on the circular surface of the bezel. The bezel representing the specific scale components can be attached to the housing of the watch, and the housing serves as the housing of the speedometer device.

[0012] The distance between the speed indicating units on each of the frames is adapted to the range of the typical average speed of the predetermined track, so that the speed indicating units can cover only a portion of the circular surface of the frame or the entire surface. In an advantageous embodiment of the speedometer device, the speed indicating units of the scale components only cover half or less of the circular surface of the frame, for example, they cover about one third of the circular surface. For example, when the frame is attached to a watch, the scale is only arranged at the bottom of the watch. In this way, the individual scales of the different parameters (such as time, date, seconds and average speed) provided by the watch are located in different areas on the watch. The user can quickly and reliably read the values ​​of the different parameters, in particular, the average speed measured by the speedometer device can be easily identified.

[0013] In another embodiment of the speedometer device according to the invention, each scale component in the set of scale components corresponds to a circular track, wherein the length of the circular track defines the predetermined distance of the scale components of the circular track. The start mark is defined as the position on the circular track represented by the corresponding scale component. For example, the start mark can be defined as the position corresponding to a person standing by the circular track and watching the moving object. The stop mark for stopping the timer corresponds to the position of the moving object passing through the start mark again after the moving object has traveled one lap on the circular track. Therefore, the stop mark can also be indicated by the position corresponding to the person standing by the circular track and watching the moving object, which the moving object passes through again after traveling one lap on the circular track. With such a scale component, the average speed of consecutive laps of the moving object on the circular track can be easily determined, and the average speed values ​​of different laps can be compared.

[0014] In yet another embodiment of the speedometer device according to the invention, an attachment for releasably attaching the scale component to the housing is implemented by a first mounting portion on the housing and a second mounting portion on the scale component, wherein when the scale component is attached to the housing, the first mounting portion and the second mounting portion engage with each other in a form-fitting or friction-fitting manner. For example, the form-fitting of the mounting portions can be implemented by a clip connection, wherein the edges of the two mounting portions are elastically engaged with each other. In addition, the form-fitting can be implemented by a threaded connection or a bayonet connection between the mounting portions. The friction fit can be implemented, for example, by a press-fit, which generates a friction force between the mounting portions to keep these mounting portions engaged with each other.

[0015] In a preferred embodiment of the speedometer device of the present invention, the set of scale components includes a plurality of separate scale components, the number of which corresponds to the number of predetermined racing tracks for a racing event series established for a type of moving object in a year. For example, the set of scale components includes scale components for each racing track of a Formula One racing event series for racing cars in a given year. A user of a speedometer device participating in multiple racing events of a Formula One racing event series as a spectator can easily convert the speedometer device to a predetermined track length corresponding to a specific racing event of the racing event series by selecting and attaching scale components corresponding to the predetermined racing track at the housing of the device. For example, the set of scale components can include personalized scale components for Grand Prix series in Monaco, the United Kingdom, Belgium, Brazil, Denmark, etc. This set of scale components will provide specific scale components for each racing event in 23 Grand Prix, which may differ in terms of predetermined track length, indication of the slowest average speed and the fastest average speed, and indication of lap record.

[0016] The user simply watches the race from a spectator seat or platform and determines the average speed for each lap of the race track by starting and stopping the timer. The average speed for each lap, a series of laps or the entire race can be determined by the speedometer device.

[0017] In another aspect, the invention relates to a watch comprising a speedometer device as described above. The watch comprises at least a housing, a preferably circular dial, a time scale indicating the time of day and a pointer indicating the time on the time scale. In addition to the scale component attached to the watch housing, the elements of the speedometer device can be implemented as an integral part of the watch. For example, the pointer for indicating the average speed on the scale component can be an additional pointer of the watch and moves around the central axis of the watch like the pointer of the watch. In addition, the watch can include a timer and a starter for the timer, which components can simultaneously serve as a timer and a starter of the speedometer device.

[0018] By simply replacing the scale components, the watch according to the present invention can be easily adjusted to determine the average speed of an object moving on a track of different predetermined distances. The measured speed will be clearly indicated in a clearly defined area on the watch without interfering with other indications, such as the time display. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Several exemplary embodiments of the present invention will be shown in the following drawings, which are for illustration only and should not be interpreted as limiting. Features of the present invention that become apparent from the drawings should be considered part of the disclosure of the present invention, whether the features themselves or in any combination of features. The drawings show:

[0020] Figure 1 : A three-dimensional exploded view of a speedometer device having a first scale component according to the present invention;

[0021] Figure 2: Assembled Figure 1 a speedometer device, and

[0022] Figure 3 : Figure 1 FIG. 1 is a top view of a second scale component of a speedometer device. DETAILED DESCRIPTION

[0023] In the following description, certain terms are used for convenience, not for limiting the present invention. The terms "right", "left", "up", "down", "below" and "above" refer to directions in the figures. The terms include the terms explicitly mentioned and their derivatives and terms with similar meanings. In addition, terms representing spatial relativity, such as "below", "below", "lower", "above", "upper", "proximal", "distal" and the like, can be used to describe the relationship between one element or feature and another element or feature, as shown in the figure.

[0024] Figure 1 A speedometer device for indicating the average speed of a moving object according to the present invention is shown, which is used in combination with a watch. The watch comprises a housing, which also serves as a housing 1 for the speedometer device. The housing 1 basically comprises a circular flat shape, wherein a surface 2 of the flat shape can be used as a time scale and a dial area where a pointer indicating the time on the time scale (not shown) is located. As is known, the pointer can rotate around the central axis of the dial. As an alternative, the flat shape can also include a display for digital time indication. The housing 1 comprises two pairs of extensions 3, wherein the two pairs of extensions are arranged on opposite sides of the housing. The two pairs of extensions are used as attachments for a wristband.

[0025] The speedometer device also includes a timer and an actuator 4 for manually starting and stopping the timer. Although three actuators 4 are depicted in the figure. Any one of these actuators can be selected as the actuator of the timer, while the other actuators can be used for other functions of the watch. The timer can be an integrally integrated unit of the watch, or it can be used only to determine the average speed by the speedometer device. The scale component 5 includes a scale 6 with a speed indication unit, and the scale 6 is used to indicate the average speed of the moving object. A pointer 13 for indicating the measured average speed on the scale 6 is arranged on the surface 2 of the dial. The pointer 13 is preferably arranged to rotate around the central axis of the dial, just like the rest of the pointers of the watch.

[0026] like Figure 1As shown, the scale component 5 can be removed from the housing 1. The scale component is selected from a group of scale components (not shown), and the group of scale components includes a plurality of different scale components. Each scale component has a scale provided with a speed indicating unit for indicating a speed range corresponding to a different predetermined distance. The predetermined distance is used as a basis for customizing each scale component according to the specific characteristics of a track or racing course including a predetermined length. For example, for a given track or course length, or for different track surfaces or weather conditions for a given track or course length, or for different racing event series, different scale components may differ in the scale range used for average speed indication.

[0027] The scale component 5 has a circular ring form and serves as a frame of the watch. The scale 6 is located on the upper surface of the scale component 5, and the scale component 5 is attached to the watch with an opposite lower surface. The scale component 5 is detachably mounted on the housing 1 by means of a first mounting portion 7 on the housing 1 and a second mounting portion 8 on the scale component 5. The first mounting portion 7 has the form of a lip extending radially from the periphery of the housing 1. The extension range of the lip is slightly less than one-fourth of the periphery of the housing. The first mounting portion 7 includes two such lips extending from opposite sides of the housing. The second mounting portion 8 has the form of a lip extending radially from the inner peripheral wall of the scale component 5. The first mounting portion 7 includes two such lips extending from opposite sides of the peripheral wall. The extension range of these lips is slightly less than one-fourth of the peripheral wall. In order to attach the scale component 5 to the housing 1, the scale component 5 is positioned on the housing 1 so that the lip of the second mounting portion 8 is aligned with the lipless area of ​​the periphery of the housing 1. Therefore, when the ruler member 5 needs to be placed on the surface 2 of the housing 1, the lip of the second mounting portion 8 can slide down along the periphery of the housing and pass the lip of the first mounting portion 7 until the ruler member 5 rests on the surface 2 of the housing 1. In this position, the lip of the second mounting portion 8 is located farther than the lip of the first mounting portion 7 relative to the surface 2. Next, the ruler member 5 is rotated relative to the housing 1 so that the lip of the second mounting portion 8 slides under the lip of the first mounting portion 7. In this position, because the lip of the second mounting portion 8 is engaged with the lip of the first mounting portion 7, the ruler member 5 can no longer be lifted from the housing 1 and separated. The ruler member 5 is rotated on the housing 1 until the protrusion (not shown) on the ruler member 5 is snapped into the groove 11 on the housing.

[0028] Therefore, the scale component 5 is firmly attached to the housing 1 in a form-fitting manner. This position defines the correct attachment position of the scale component 5 on the housing 1 for indicating the average speed of the moving object on the scale 6. The positioning mark 9 on the scale component 5 is aligned with the control mark (not shown) on the dial, such as the 12 o'clock digital position of the dial. This alignment helps to ensure the correct positioning of the scale component 5 on the housing 1. In order to remove the scale component 5 from the housing 1, the scale component 5 can be rotated on the housing to overcome the snap fit until the lip of the second mounting portion 8 is aligned with the lip-free area of ​​the periphery of the housing 1. In this position, the scale component 5 can be lifted from the housing 1 and separated.

[0029] Figure 2a and Figure 2b The speedometer device is shown in an assembled state, wherein the scale component 5 is mounted on the housing 1 . Figure 2a is a three-dimensional view. Figure 2b It can be seen that the scale component 5 is implemented as a frame of a watch.

[0030] The scale member 5 is customized for a predetermined distance that the moving object is to travel, wherein in this embodiment of the scale member 5, the predetermined distance corresponds to the Silverstone International Racecourse in 2022, such as Figure 2b As shown in the upper left area of ​​the scale member 5, the name 10 of the scale member 5 is displayed. Therefore, the predetermined distance is characterized by a 3809 km circular track, corresponding to 18508 miles. In this embodiment, the scale member 5 is also customized for a classic car of the CTCRC Pre-83 class as a moving object. Figure 2b The corresponding racing car type name 12 is displayed on the upper right area of ​​the scale member 5 .

[0031] The scale 6 of the scale component 5 of the Silverstone International Circuit covers a range of average speed indications from 70 miles per hour (mph) to 85mph, which covers the typical average speed results completed in the past on this circular track, from the lowest average speed on a wet track surface race day to the highest average speed on a dry track surface race day. In addition, the scale 6 includes an indication LR of a lap record for the CTCRC Pre-83 level of the Silverstone International Circuit, which is currently 838mph. In this example, the speed indication unit for indicating the speed range corresponds to the lowest and highest average speed results on the racing process, and extends a small portion below the lowest average speed and above the highest average speed. A small portion means, for example, about 1-10% of the lowest and / or highest average speed results, preferably about 1-5%. For example, if the lap record is 83.8mph, the range indicated by the scale will reach about 85mph. The distance between the speed indication units on each scale component is adjusted to adapt to the range of the typical average speed of the predetermined track, so that the scale 6 only covers a portion of the circular surface of the scale component 5. In this embodiment, the scale 6 covers only approximately one third of the circular surface and shows a speed indication accurate to 0.1 mph.

[0032] The scales are arranged in the lower half of the scale part 5 and the lower half of the watch face 2, respectively. In this way, the remaining surface of the scale part 5 is free and can be used to display other information, such as the name of the racing track 10 and the racing event series 12. The overall design of the dial is clean and neat, and does not appear cluttered because the watch scales for different parameters are intertwined.

[0033] In use, the start mark is defined by the user of the speedometer device along the position of the Silverstone International Race Course, more specifically, it can be defined as a fixed point in front of the user. Once the racing car of interest passes the user or the fixed point, the user starts the timer. Once the racing car passes the user or the fixed point again after another lap on the racing course, the user stops the timer. The pointer indicates the average speed of the lap just completed, wherein the average speed is derived from the predetermined distance and the time taken to travel the distance measured by the timer. The stop mark for stopping the timer corresponds to the start mark that the moving object passes again after having traveled a lap of the racing course. The user can easily see whether the racing car is in the lower or higher range of the average speed result, and can recognize whether the average speed is close to the lap record or even higher.

[0034] The scale component 5 described above for the Silverstone International Circuit is only one scale component in a set of scale components according to the present invention. Other scale components in the set of scale components can be customized for other racing tracks that are longer or shorter than the Silverstone International Circuit. By selecting the scale range and the indication of the lap record, the scale of the scale component can be customized for a specific racing track. Other racing tracks and racing event series can include but are not limited to the following tracks, namely the 23 tracks of the Formula One racing event series:

[0035]

[0036]

[0037] Figure 3 Another embodiment of a scale component 5' for a speedometer device of the present invention is shown. The scale component is customized for a predetermined distance of the Monaco Grand Prix circuit, as indicated by the designation 10'. The Monaco circuit is 3337 kilometers long, or 2074 miles. The speed indicating unit for indicating a speed range covers the lowest and highest average speed results on the course of the competition, extending from 65mph to 120mph. The lap record LR is 102mph. A scale with a scale resolution of 0.1mph could be used, but for clarity, Figure 3 The scale in the example is only minimally shown. The speed indication units are not equidistant. The distance between the units in increments of five in the low speed range is greater than the distance between the units in increments of five in the high speed range. It should be noted that the scale starts at positioning mark 9 and extends from the lowest speed indication to the highest speed indication in a counterclockwise direction. The digital display direction of the indications in the lower half of the frame is opposite to the indications in the upper half of the frame. This indicates that the frame is in a fixed position on the housing and does not need to be rotated when in use, as is the case with the frame in the prior art watches. The frame has a knurled edge to facilitate gripping when the frame needs to be attached to or detached from the housing.

[0038] Figure 4 Another embodiment of a scale member 5" for a speedometer device of the present invention is shown. The scale member is customized for a predetermined distance of the Brooklands Grand Prix circuit, as indicated by the designation 10". The Brooklands circuit is 4.21 kilometers long, or 2.61 miles. The speed indicating unit for indicating a speed range covers the lowest and highest average speed results on this particular race course, extending from 65mph to 100mph. Figure 4The embodiment of the embodiment has a mark FL representing the fastest lap. The speed indication unit of this embodiment extends almost over the entire circumference of the frame. The scale extends from the lowest speed indication to the highest speed indication in a counterclockwise direction. Similarly, the digital display direction of the indication in the lower half of the frame is opposite to the indication in the upper half of the frame, and the frame has a knurled edge.

[0039] In summary, the speedometer device according to the present invention is intuitive, easy to operate and also decorative. The design of each scale component takes into account the length of the track, the type of racing, the speed of the sports object of a specific series, and dry or wet conditions. It covers the slowest and fastest sports objects and indicates the current lap record. In a preferred embodiment, the speedometer device is a racing track speedometer, wherein the set of scale components is designed for different racing tracks during the racing process of a racing season for racing cars. More than 95% of watch owners know how to use the chronograph function of the watch. All that needs to be done is to mount the correct frame corresponding to the predetermined distance (track length) to the housing.

[0040] In the claims below, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. A single unit or step may also fulfill the functions of several features listed in the claims. The fact that certain measures are stated in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. The terms "substantially", "approximately", "approximately" etc. relating to an attribute or a value particularly also define a precise attribute or a precise value, respectively. Any reference signs in the claims should not be construed as limiting the scope.

[0041] Reference numerals

[0042] 1 Housing

[0043] 2 Surface

[0044] 3 Paired extensions

[0045] 4 Launcher

[0046] 5, 5', 5" Ruler Parts

[0047] 6 Ruler

[0048] 7 First installation part

[0049] 8 Second installation part

[0050] 9 Positioning Marks

[0051] 10, 10', 10" Name

[0052] 11 Buckle groove

[0053] 12 Racing Series

[0054] 13 Pointer

[0055] LR lap record

[0056] FL Fastest lap

Claims

1. A speedometer device for indicating the average speed of a moving object, comprising: a timer and a starter (4), the starter (4) being used to manually start the timer when the object passes a start mark and to stop the timer when the object passes a predetermined distance from the start mark, A housing (1) is provided with a scale (6) for indicating the average speed of the moving object and a pointer (13) for indicating the measured average speed on the scale (6), wherein the measured average speed is obtained from the predetermined distance and the time taken to travel the predetermined distance measured by the timer, The scale (6) is designed as a scale component (5, 5', 5") detachably arranged on the housing (1), and The scale component is selected from a group of scale components, the group of scale components comprising a plurality of different scale components (5, 5', 5"), each scale component having a scale (6) provided with a speed indicating unit for indicating speed ranges corresponding to different predetermined distances.

2. A speedometer device according to claim 1, wherein each scale component (5, 5', 5") of the set of scale components corresponds to a race track defining a different predetermined distance for each different scale component (5, 5', 5"), and wherein the speed indicating unit on the scale component for a predetermined race track covers a range of typical average speeds of moving objects for the predetermined race track.

3. The speedometer device according to claim 2, wherein the speed indicating unit on the scale member (5, 5', 5") for the predetermined track covers a range from the average speed of the slowest moving object on the track to the average speed of the fastest moving object on the track.

4. The speedometer device according to any one of the preceding claims, wherein a scale component (5, 5', 5") in the set of scale components is designed as a circular bezel of a watch, the bezel having a speed indication unit for indicating a speed range, the speed indication unit being displayed on a circular surface of the bezel.

5. A speedometer device according to claim 3 or 4, wherein the distance between the speed indicating units on each of the scale members is adapted to the range of typical average speeds of the predetermined race track, and wherein the speed indicating units cover only a portion of the circular surface of the frame, preferably only half of the circular surface or less.

6. A speedometer device according to any one of the preceding claims, wherein each scale element (5, 5', 5") in the set of scale elements corresponds to a circular track, wherein the length of the circular track defines the predetermined distance of the scale element to which the circular track corresponds, and wherein the start mark is defined as a predetermined position on the circular track to which the scale element corresponds, and wherein the stop mark for stopping the timer corresponds to the moving object passing the start mark again after traveling one lap on the circular track.

7. A speedometer device according to any one of the preceding claims, wherein the speed indication unit of the scale part (5, 5', 5") for a track having a predetermined distance comprises a track record or a lap record corresponding to the track and / or an indication of the fastest lap of the track.

8. A speedometer device according to any one of the preceding claims, wherein an attachment for releasably attaching a scale component (5, 5', 5") to the housing (1) is realized by a first mounting portion (7) on the housing and a second mounting portion (8) on the scale component (5, 5', 5"), wherein when the scale component (5, 5', 5") is attached to the housing (1), the first mounting portion (7) and the second mounting portion (8) engage with each other in a form-fitting or friction-fitting manner.

9. A speedometer device according to any one of the preceding claims, wherein the set of scale members comprises a plurality of individual scale members (5, 5', 5"), the number of which corresponds to the number of racing tracks predetermined for establishing a series of racing events for one type of sporting object in a year.

10. A watch comprising the speedometer device according to any one of claims 1 to 9.

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