DE6919101U - SAFETY CARTRIDGE HOLDER - Google Patents

Description

Dipl.-Ing.FJ. COPPER MAN

Patent attorney

Applicant: M. γ. Philips' Gloeilompenfabriekeo

File No. PHN-3015
Registration dated: May 9, 1969

N.V. PHILIPS'GLOEILAMPENFABRIEKEN, Eindhoven / Holland

"Safety cartridge holder".

The innovation relates to a safety cartridge holder with an elongated cartridge carrier, which is an eccentric Has a cavity for laterally receiving a safety cartridge, and which can be rotated in a sleeve between two angular positions one of which forms the contact layer in which the safety cartridge with the contacts provided in the sleeve is electrically connected, and the other allows a cartridge to be replaced.

The advantage of such a holder is that it provides protection against life-threatening contact with live elements Points when replacing a safety cartridge.

Such a holder is known from British patent specification 511,376; while the axis of rotation of the cartridge carrier runs parallel to a slot in the front of the housing containing the carrier, after rotating the carrier from the contact position to the other position the cartridge appears behind this slot and can thus be exchanged can. A knurled drive pulley on the carrier protrudes through a second slot on the front.

When installing such a holder in a device, openings corresponding to the two mentioned slots must be made in this be provided on the front of the device

PHK- 3015

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take up a lot of space.

The purpose of the innovation is to create a device in which while maintaining the advantage of a secure exchange the aforementioned loss of space is reduced.

According to the innovation, this is achieved in that the elongated Cartridge holder is rotatable in the case about its longitudinal axis and displaceable in the longitudinal direction and that means are provided that secure the cartridge holder in the contact position against axial displacement and around this Position vex'drehten angular position allow a shift out of the holder in an axial direction up to a position in which the carrier protrudes enough to replace the cartridge.

Since the cartridge carrier in the longitudinal direction and transversely to the outer wall of the housing is pushed out, only a small opening is necessary in this wall, as a result of which, like this will be explained further below, a separate actuator is unnecessary.

There is also already known a security holder in which (a cap to be regarded as a cartridge carrier, which has one end

of the cartridge, together with the cartridge in the longitudinal direction can be pushed out. This known holder has the disadvantage that the openings that become free the contacts are accessible so that this type of construction does not offer any protection against life-threatening contact.

The innovation is explained in more detail using a drawing in which

Fig. 1 shows an embodiment of the innovation in a perspective Shows the view with the carrier in the contact position,

part of this vehicle in Pig. 2 is shown in a different position;

Pig. 3 shows the same holder in a position rotated by 180 ° about its axis, with part of the sleeve wall is omitted and

Fig. 4 shows a second embodiment.

The holder shown in Figs. 1 and 3 contains a sleeve 1 in which an elongated cartridge holder 3 with an eccentric cavity for receiving a safety cartridge 7 rotatable and displaceable in the manner set out below is housed. For better illustration see Pig. 2 a part of the carrier 3 with the cavity 5 separately shown.

The sleeve 1 has an opening 9 through which two to the Points 11 in a known manner attached contact springs 13 protrude with their U-shaped ends 15, the ends in the one in Pig. 1 the contact position of the carrier 3 shown touch the contact caps 17 of the cartridge 7 under a certain pressure.

The carrier 3 is provided with means that secure it from axial displacement in the contact position and those in the other about its axis twisted angular position allow its displacement in an axial direction. These funds consist in the one in Pig. 1 embodiment shown on the one hand two cams 19 at one end - in this pail the right one End 21 - of the beam 3 and two cooperating with these cams, more or less L-shaped recesses in the sleeve 1, the long, groove-shaped parts 23 in the axial direction and whose short, circular arc-shaped parts 25 are worked into the wall of the sleeve 1 in the circumferential direction.

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The end faces 27 and 29 of the recess part 25 form while abutment surfaces for the cams 19 in the contact position or in the other position shown in FIG. 2. In the first The carrier is positioned against axial displacement, on the one hand by the cams 19 resting against the end faces 31 of the recess parts 25 and on the other hand by a radially protruding abutment element in the form of a clamping ring 33 (visible in FIG. 3) in a circumferential groove 35 of the carrier 3 is housed in the vicinity of its left end 32.

In the angular position shown in FIG. 2, the axial flutes 23 - those in FIG. 3 partially cut open for the sake of clarity are shown - the cams 19 of the carrier 3 pass so that the left end of the carrier is in a position can be pushed out, in which the cams 19 abut against the end faces 41 of the grooves 23 and in which the cartridge can be exchanged.

In the inserted position of the carrier (see FIG. 1) the clamping ring 33 disappears in a widening 37 of the sleeve cavity and hits the bottom 39 of this widening.

The safety holder described above can be accommodated in the housing of a device by conventional means. The holder can for this purpose, as shown in the drawing is to be provided with a flange 43 with holes 45,

After the carrier 3 has been rotated into the replacement position, it can be easily pulled out of the device or from the holder lead by shaking in the exchange position shown in Fig. 3. To facilitate rotation from the contact position in the other position mentioned is the end face 32 at the slide-out end of the carrier 3 with a groove 47 for receiving an object serving as a screwdriver.

A separate organ for twisting is not necessary.

From Figs. 1 and 3 is still just visible and in Fig. 2 is also shown in isolation that the carrier 3 can still be provided with an additional axial groove 49, which is of sufficient depth and width to be able to slide out of the carrier 3 to let the contact springs 13 pass, thereby pushing the carrier 3 out of the sleeve is further facilitated.

Pig. 4 shows a further embodiment of a device according to the innovation, which thereby differs from that in FIGS. 2 and 3 holder shown differs that a functionally with the cams 19 comparable cam 19 'is provided on the inner wall of the sleeve 1, which with the groove-like, from the parts 23 'and 25' existing recess in the carrier 3 cooperates. Those of the holder according to Fig. to 3 corresponding parts are denoted in Fig. 4 with the same reference numerals with an accent, provided that they are in their Education and / or location differ from them. An explanation of the mode of operation of the device is not required, as it follows directly from the above statements.

PROTECTIVE CLAIMS:

Claims (5)

PROTECTION CLAIMS: 1. Safety cartridge holder with an elongated Cartridge carrier (3) which has an eccentric cavity (5) for laterally receiving a safety cartridge (7), and which can be rotated in a sleeve (1) between two angular positions, one of which forms the contact position in which the safety cartridge sits electrical contacts (13) provided in the sleeve Terbunden is and the other location is exchanging one Cartridge (V) made possible, characterized in that the elongated cartridge carrier (3) in the sleeve (1) around its longitudinal axis is rotatable and verscliieb-Dar in the direction of the longitudinal axis and that means (19, 23, 25, 33, 37) are provided, by which the cartridge carrier (3) is secured against axial displacement in the contact position and rotated about this position Angular position allows a displacement from the holder in an axial direction up to a position in which the carrier (3) protrudes enough to replace the cartridge (7). 2. Holder according to claim 1, characterized in that one of the two elements of the structure consisting of the case and the cartridge carrier, at least one protruding radially Has cam (19) which engages in a recess (23, 25) provided in the other element, which recess is designed in this way is that the cam in the inserted position of the carrier a rotation of the same from the contact position to the other Position and then an axial displacement allows up to the position in which the cartridge (7) can be replaced. 3. Holder according to claim 1 or 2, characterized in that the cartridge holder (3) in the inserted position against further axial pushing in by an end (32) that can be pushed forward radially on the carrier near the end (32) that can be pushed out of the sleeve. t * I ■ ■ 9 T standing closure element (33) is secured, and this element in the inserted position of the carrier χη the sleeve disappears. 4. Holder according to claim 3 »characterized in that the radially protruding closure element (33) by a clamping ring fitted in a groove surrounding the carrier is formed. 5. Holder according to one of the preceding claims, characterized in that the carrier (3) is provided at the end (32) which can be pushed out of the sleeve with a groove (49) for receiving an object which can be used as a screwdriver.