DE7026201U - ROTARY KNOB. - Google Patents

Description

28/70 PLI Lu / Li

8/7/1970

ROBERT BOSCH ELEKTRONIK GMBH Berlin and Stuttgart

Knob

The innovation relates to a rotary knob with a centric one Bore for placing on the shaft of a device in a device, i

in particular communications technology, built-in rotary switch, a rotatable tuning means or the like.

5 With many of the previously known rotary knobs, the mostly ring-shaped

1 shaped scale concentric "™ the rotary knob, so ■

I outside the rotary knob, for example on the housing wall,

I firmly arranged. The rotary knob is with a on its j

1 i

1 outer edge attached pointer, for example in the form of a

I 10.- - thread in a frame, provided that when turning I of the button above the one with numbers or other signs

I play scale. To ensure proper fine adjustment, j

i \

I the diameter of the rotary knob is chosen to be as large as possible, with- |

for example on the order of about 3 to 4 cm in diameter.

15 This is especially true when the manually operated rotary knob for the operation of voting equipment or the like on devices communications engineering is used.

Since now the outside of the periphery of the rotary knob i ring scale with the specified example of the order of magnitude of

20 about 3.5 cm in diameter of the button a width of about 1 to Must have 1.5 cm in order to have a clear and perfect

Read off

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The rotary knob is also used to ensure reading

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The claimed areas of the ring scale is thus about twice the diameter of the rotary knob. However, communication technology is particularly important in the case of portable devices For example, in the case of portable radio communication devices, there is usually very little free space on the housing of the device, so that one has to try to find the rotary knob and scale an area of, for example, only about 3.5 cm in diameter to claim. Since a button with a smaller diameter of for example 2 cn; a sensitive «service from no longer ensures averaging, one has the scale on that Outside edge of the rotary knob attached. With this scale arrangement, however, the scale necessarily rotates together with the rotary knob as soon as it is operated. Reading the scale and thus the exact setting of the tuning means is made extremely difficult, in fact almost impossible. Because, since the scale moves with the rotary knob, the characters on the scale are at Turning the button in constantly changing positions, so that a clear and thus quick and reliable orientation about the respective setting of the tuning means is lost. Incorrect reading or incorrect settings can therefore hardly be avoided.

In order to avoid the disadvantages mentioned, according to the innovation

suggested that the knob has the shape of a ring

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8/7/1970

whose inner wall is a rigid support with the central bore is attached and its interior to the outside by one of the ring independent disc is covered, which is on its underside through the interior of the ring and through openings of the Carrier reaching through fastening means for immovable Has attachment of the disc to the device, the disc carries a scale or the like on its outside and the Ring has an index that interacts with the scale.

Due to the design of the rotary knob in accordance with the innovation

Scale is achieved that the scale is fixed and immobile so that it remains clear and easy to read, with the rotary knob having the optimal diameter of, for example, 3.5 cm. Despite this advantage, the one on the outside wall of the device housing not greater than <-ls the circular area covered by the rotary knob of, for example about 3.5 cm in diameter. In addition, the knob has a result its special shape gives it a very attractive appearance. The pleasing shape of the rotary knob can be enhanced if, for example, according to the innovation, the outside of the disc approximately in one plane with the outer edge of the ring is, and especially when the diameter of the dial is slightly smaller than the diameter of the ring and on a inner shoulder of the ring rests. Another advantage of the innovation according to the rotary knob is that the usable

Angular range of the scale while maintaining the other mentioned

benefits

* c e 9 «9

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Advantages can be over 300 °. This latter advantage is achieved in that the openings in the carrier with the central bore are designed so that the rotation of the ring within an intended angular range by the Fastening means of the disc is not obstructed.

In an exemplary embodiment according to the innovation, the are on Two fasteners attached to the underside of the disc Pins which are arranged opposite one another with respect to their center point, the distances of the pins from The center point are different, and the openings in the support have two concentric slots. The concentric slots in turn each have an angular range of about 300, and the Angular areas of the two slots are offset from one another by 180.

The scale and the index can be illuminated by a light bulb mounted in the interior of the ring.

Further features, also evident from the protection claims and details of the innovation are described and explained in more detail below with reference to an exemplary embodiment shown in the drawing. Show it:

Fig. 1 is a plan view of a rotary knob with a scale,

2 shows a plan view of the operating ring with carrier after the graduated disk has been removed,

3 shows a cross section through the operating ring shown in FIG. 2,

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Operating ring, but in the assembly of the nit Skt ^f .anscheibe and their mounting pins,

FIG. 5 shows a cross section of the same shown in FIG Arrangement, but in the assembly with a lighting

tion order,

6 is a perspective view of the entire arrangement

in a disassembled representation of the individual components.

The rotary knob 1 has the shape of a ring 7, on the inner wall 8 of which a carrier 9 with the central bore 4 is rigidly attached. The interior 15 of the ring 7 is through to the outside a disc 2 independent of the ring 7 covered, which on its underside through the interior. 15 of the ring 7 and through Fastening means 3 extending through openings 5 of the carrier 9 for the immovable fastening of the disk 2 to the Device 6 has; the disk 2 has a scale 10 or the like on its outside. The outside of the disc 2 lies approximately in one plane with the outer edge of the ring 7; before Partly, the dial 2 is slightly smaller than the passage knife of the ring 7 and rests on an inner shoulder 20 of the ring 7. The ring 7 has an index 12 cooperating with the scale 10; the index 12 can, for example, be in Be attached to the outer edge of the ring 7 in the form of a nose.

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8/7/1970 3 are different from the focal point. ^ iicks in f The on are - 6 - distances medium the Underside of the disk 2 attached i two pins 3 which are nearly & v ' "' e *" e 1 bPs; 3> ir ^; c ...- By- knife Disc 2 and with respect to di- ^ ₁ .ki · ,; ». at the are arranged opposite one another, with lie 5 of the pins

breaks in the carrier 9 are two concentric slots 5, the each have an angular range of about 300 °; the angular ranges of the two slots 5 are 180 ° from one another offset (Fig. 2).

The free ends 11 of the pins 3 can be pressed into corresponding holes in the housing wall 6. The one located in the carrier 9 central bore 4 is placed on the shaft 16 of a rotary switch, rotatable tuning means or the like 14 built into the device (FIGS. 5 and 5).

The scale 10 and the index 12 can be illuminated by a light bulb 17 mounted in the interior 15 of the ring 7. For this purpose, in the interior 15 of the ring 7 is made of a translucent material, for example acrylic glass (a known under the registered trademark "Plexiglas"

Commercial form), existing light guide 18 provided for Receipt of the glow lamp 17 has a recess 19 (Fig. 6). The index 12 is then also made of translucent material, as is the dial 2 the part of the area labeled with numbers or the like

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1 \ ig. 5 denote the strong, dashed lines Beam path of the light emerging from the incandescent lamp 17 through the light guide 18 to the dial 2 and to index 12.

Claims (1)

I I »I ♦ If "1 * 111" 28/70 - 1 - PLI Lu / Li 8/7/1970 j Protection claims 1. Rotary knob with a central hole to be placed on the Shaft of a rotary switch built into a device, in particular in communications technology, a rotatable tuning means or the like, characterized. that the rotary knob (1) has the shape of a ring (7) with ice on its inner wall (8) rager (9) rigidly attached to the central bore (4) is and whose interior (15) is covered to the outside by a disc (2) independent of the ring (7), which is attached to hers? Underside through the interior (15) of the ring (7) and through openings (5) of the carrier (9) through fastening means (3) for immovable attachment of the disc (2) to the device (6), the disc (2) on its outside carries a scale (10) or the like and the ring (7) has an index (12) which cooperates with the scale (10). 2. Rotary knob according to claim 1, characterized in that di ^ Openings (5) in the carrier (9) with the central bore (4) are designed in such a way that the rotation of the ring (7) is not hindered by the fastening means (3) of the disc (2) within a provided angular range. 3. Rotary knob according to claim 2, characterized in that the fastening means attached to the underside of the disc (2) are two pins (3) which are arranged opposite one another with respect to their center, the distances of the pins (3) from the center are different, and that the openings (5) in the carrier (9) «white concentric slots .7026201-5.11.70 -2- II * 1 28/70 - 2 - PLI Lu / Li 8/7/1970 4. Rotary knob according to claim 3, characterized in that the free ends (11) of the pins (3) can be fastened to the housing wall (6), preferably in a detachable manner. _ button according to claim 4, characterized in that the free ends (11) of the pins (3) can be pressed into corresponding holes (13) in the housing wall (6). 6. Rotary knob according to one of claims 3 to!>, Characterized in that the concentric slots (5) each have an angular range of about 300 ° and that the angular ranges of the the two slots (5) are offset from one another by 180 °. 7. Rotary knob according to one of claims 1 to 6, characterized in that the outside of the disc (2) approximately in one Level with the outer edge of the ring (7). 8. Rotary knob according to one of claims 1 to 7, characterized in that the diameter of the dial (2) is slightly smaller than the diameter of the * ring (7) and rests on an inner shoulder (20) of the * rings * (7) . 9. Rotary knob according to one of claims 1 to i), characterized in that the index (12) on the outer edge of the ring (7) » for example in the form of a nose attached.