RU13446U1 - SWIVEL HANDLE WITH INDICATOR INSERT - Google Patents

Description

SWIVEL HANDLE WITH INDICATOR INSERT

The utility model relates to electrical engineering and can be used in electrical switches to indicate the position of the rotary handle.

Known control handle of an household appliance described in EPO application No. 0276463 (publ. 03.08.88). The handle is equipped with a positioning mark formed by a slotted cap mounted on a recessed rotary handle and covering the inner guide portion with a gap. Behind the cap there is a cartridge with an incandescent bulb, which, when the handle is recessed, enters the annular cavity bounded by the cap.

Thus, in the described construction, the indication is carried out only in case of recession of the handle.

The closest analogue is described in the application of Germany No. 3816928 (publ. 12/12/88) lighting device for an electrical device. The device includes a rotary handle, made in the form of a disk-shaped base with a handle mounted on it, equipped with an indicator insert. The handle has a shape close to a rectangular parallelepiped and is located on one of its long sides along the axis of symmetry of the base. The indicator insert has the form of an elongated rectangle located along the handle at its edge. Around the base

MPK6N01N9 / 18

of the handle is a cylindrical fiber through which the position of the handle is illuminated.

The disadvantage of the described handle is the decrease in usability in the dark due to the lack of illumination of the indicator insert on the handle.

The objective of the utility model is to increase the convenience of using the rotary handle with indicator insert.

The indicated task in a rotary handle with an indicator insert made in the form of a disk-shaped base with a handle installed on it, located along the axis of symmetry of the base and equipped with an indicator insert mounted on the edge of the handle, is solved by the fact that the indicator insert is formed by a light guide plate installed with its extended edge in slots of the handle, and inside the cavity of the handle along the sides of the slot formed lateral limiters adjacent to the opposite side surfaces of the light guide plate s, in continuation of the end face slot mounted guide groove U-shaped in cross section, wherein the light guide plate fixed within the handle, on the one hand, by hooking the locking tooth plate with the free end face of the gutter and, on the other hand, focusing convexity of the plate into the inner surface of the handle cavity.

The handle and base are usually hollow and integral.

The slot of the handle is preferably stepped, while the light guide plate is mounted with the stop of the extended edge in the slot level.

The lateral stops and the gutter of the U-shaped section are formed mainly by elongated protrusions.

The U-shaped trough can be provided with a stiffener along the entire length.

The above set of features in comparison with the prior art allows us to conclude that the claimed technical solution meets the condition of "novelty. At the same time, the claimed technical solution is applicable in the industry, for example, in the design of electrical switches, therefore, it meets the condition of "industrial applicability.

A utility model is presented in the following drawings. Figure 1 presents the rotary handle with indicator insert in longitudinal section at the installation site of the light guide plate; in FIG. 2 shows a rotary handle with an indicator insert in cross section; on Fig.3 shows a rotary handle in the context of the location of the side stops; figure 4 shows the light guide plate in a perspective view.

The rotary handle with an indicator insert consists of a disk-shaped base 1 with a handle 2 installed on it, located along the axis of symmetry of the base 1 and equipped with an indicator insert mounted on the edge of the handle 2. The base 1 and handle 2 are predominantly hollow and sealed. The indicator insert is formed by a light guide plate 3 mounted with its expanded edge 4 in the slot 5 of the handle 2, and the slot 5 is usually made stepwise. The light guide plate 3 is preferably installed with the stop of the extended edge 4 in the step 6 of the slot 5. The end face 7 of the extended edge 4 of the plate 3

As a rule, it is executed following the shape of the surface in which the slot 5 is formed. Inside the cavity of the handle 2 along the sides of the slot 5 lateral limiters 8 are formed, mainly in the form of elongated protrusions adjacent to the opposite side surfaces of the light guide plate 3. In the end of the end of the slot 5 is installed the guide channel 9 of the U-shaped section, as a rule, is elongated, which can be equipped with a stiffening rib 10 along the entire length. The light guide plate 3 is fixed inside the handle 2, on the one hand, by locking the retaining tooth AND of the plate 3 with the free end of the groove 9 and, on the other hand, by emphasizing the bulge 12 of the plate 3 into the inner surface of the handle cavity.

The light guide plate 3 is inserted into the slot 5 until it stops against the widened edge 4 in the step 6 and the stop tooth 11 enters the end of the groove 9.

Claims (7)

1. The rotary handle with an indicator insert, made in the form of a disk-shaped base with a handle installed on it, located along the axis of symmetry of the base and equipped with an indicator insert mounted on the edge of the handle, characterized in that the indicator insert is formed by a light guide plate mounted with its extended edge in the slot handles, and inside the cavity of the handle along the sides of the slot formed lateral limiters adjacent to the opposite side surfaces of the light guide plate, in the long A guide groove of a U-shaped cross section is installed at the end of the slot, while the light guide plate is fixed inside the handle on one side by engaging the locking tooth of the plate with the free end of the groove and, on the other hand, by stopping the convexity of the plate in the inner surface of the handle cavity.  2. The rotary handle according to claim 1, characterized in that the handle and base are made hollow and integrally.  3. The rotary handle according to claim 1, characterized in that the slot of the handle is made stepwise.  4. The rotary handle according to claims 1 and 3, characterized in that the light guide plate is installed with the stop of the extended edge in the slot level.  5. The rotary handle according to claim 1, characterized in that the end face of the expanded edge of the plate is made repeating the shape of the surface in which the slot is formed.  6. The rotary handle according to claim 1, characterized in that the side stops and the U-shaped groove are formed by elongated protrusions. 7. The rotary handle according to claim 1, characterized in that the U-shaped groove is provided with a stiffener along the entire length.