DE1665280A1 - Electrical household appliance with a locking device that is effective in one direction and can easily be put out of operation - Google Patents

Description

Dipl .-: iig. F-J. KüPFEBMANN

ia.cTiicKivfilt,

irr- aN. v -h.1.,. C-: .1 .-, .-, i-. _f -: r.iakiiekea 1665280

Akts Nn, PHN- 2297 ■ _{? H} " _{?? q7}

Registration dated March 4, 1968

"Unidirectional electrical household appliance and easily out of service locking device ".

The invention relates to an electrical domestic appliance with eir, ör effective in one direction and slightly out of operation to be set bolt device for a movable in the longitudinal direction electrically insulated two- or multi core body whose County :: e the Gr8sstquersc: .nitt many times Exceeds, like a cable, a cord and the like, whereby two latches are provided on both sides of the body, each rotatable around a fixed pivot point, which allow the body to move freely in one direction but prevent movement in the other direction, while the line connecting the centers of the pivot points to the direction of movement of the body

109811/0494

BAD OFHGiNAL

-2- PHN.2297

It is vertical which bars interact with one with the body rounded printing ends are provided.

This known locking device has the compartment part that e.g. for the modern with a plastic, -v.ie polyvinyl chloride, coated electrical cable-related to the smoothness of the material must be clamped with relatively great force in each Latch a spring must be provided. In addition, it is not safe But the Deiden bars will work at the same time.

The invention eliminates these disadvantages and is thereby
characterized that in a device of the type mentioned above, the hie ^ -el are coupled by a translation r..with each other, which is a simultaneous but opposite sense _? Rotation of the two covers around their respective pivot points is permitted, with only one resilient slement being present, which presses the two pressure ends against the body, while means are provided to remove this spring load.

The. The coupling between the two bars can be established in different ways. For example, a pole system or a
A single rod can be used, with one or more pivot points being provided on the latches.

However, Ss is simpler and cheaper if according to one embodiment the invention, the two latches one provided with teeth Have wheel segments which wheel segments interact with each other « In this case, the two latches with wheel segments and teeth e.g. injected onto a hard plastic.

The spring loading of the bolt can, for example, be elastic
Pressure pieces are brought about.

'109811/0494

-3- PHN, 2297

It is _t but the simplest t ,, if v never supplied by a tension spring for a "Veiter formation of Srfindung Feaerbeiastung; ird whose point of application on the bar between the pivot point una the pressure end lie _f t..

Appropriate actuation of the latch is obtained when ' after a further execution form. the invention of one of the bars with an approach is provided, which consists of a Rie ^ telvorrichtunc: containing Housing protrudes and with the body locked on one ■ "• nschlftgT is pending.

In order to avoid attaching a separate stop, v, -ird according to a further embodiment of the invention, the stop through a boundary wall of a slit & rti .- ,; en opening ic, housing educated.

The "invention" is presented below for an exemplary embodiment explained in more detail with reference to the drawing. Show it:

1 shows a section through part of a vacuum cleaner. housing, and

FIG. 2 shows a section through FIG. 1 along the line II-II, in seen in the direction of the arrow.

In the figures, 1 denotes an electrical two-core cable insulated by plastic. This cable is wound onto a reel by an automatic winding device, not shown, and is passed through a funnel-shaped opening 2 of a housing 3, while the reel 4 leads the cable "to the reel.

A locking pawl 6 provided with a shoulder 5 is attached in the housing 3 and can be rotated about a wedge attached to the wall of the housing 3. With. the pawl σ is a gear segment 8 with teeth 9

109811/0494

BATH

-4- PHK. 2297 ■■■ ;. '

firmly connected. The pawl 6, the gear set 8 and the teeth are injection-molded in one piece from a preferably hard plastic. In the La ^ e shown, the pressure end 5 of the pawl 6 is in the Insulation of cable 1 pressed.

At the lower end of the cord, a similar pawl 11 with a gear segment 12 and teeth 13 and a shoulder 14 is attached. A pin 15 is fastened on the pawl 11. There is a pin 16 in the housing and a tension spring 17 between the pins 15 and 16. d.the pawl 11 has an arm 20 which lies in a slot 18 of the housing; in the position shown, the arm 10 rests against a delimitation 19 of the slot. '

Teeth 9 and 13 work together. It is evident that the cable 1 is firmly clamped by the lugs 5 and 14; These approaches are provided on the pawls 6 and 11, which are coupled to one another by the teeth 9 and 13 on the gear segments 8 and 12, while the approaches are pressed by the tension spring 17 onto aas cable. The cable cannot move to the right; an allocation to the left can always characterized weraen recoverable _(t, that the cable is subjected to a tensile force.

7 »the cable hen but moved to the right and, for example, is to be wound on a (not shown) in the housing 3 housed coil, it is to overcome the tension of the spring 17 already enough to put pressure on the arm 2C, after which the approaches 5 and 14 vcni cables become free. As a result of the coupling of the approaches 5 and 14 right of the Zahnraascguiente an effective, but useful and firm pressure is exerted on the cable, which is for the modern,

10 9 8 11/0494 BAD ORfQlNAL

-5- PHN, 2297

smooth una hard insulated with "plastic cables of particular _e 3eaeutun - is the way, can be described construction even with strings, etc. apply...

Instead of a fine tooth coupling between the two pawls Another type of coupling, e.g. by means of one or more rods, can also be used. The tension spring 17 is also not indispensable; one liruckfeaer or buffer made of an elastic material such as rubber, can also be used. Instead of the slot end 19 can Movement of the arm 2C also-by a stop attached in the housing be limited. "■

BAD ORiGlNAt

109811/0494.

Claims (4)

-6- PHN.2297 PATENT CLAIMS; 1. Electrical household appliance with a one-way effective and easy to put out of operation Rie _£ -elvorrichtung for a longitudinally movable electrically insulated two- or multi-core body, the length of which exceeds the largest cross-section many times, like a cable, a cord u.agl., two sides of the body are provided, each around a fixed pivot point, aural bolts, which allow a free movement of the body in one direction, but prevent movement in the other direction, while the line connecting the centers of the pivot points is the direction of movement of the body vertical, which bars are each provided with a cooperating with the body of the rounded end of printing, characterized in that the bolts are coupled by eind l'ebersetzung .Miteinander that _f simultaneous Aoer £ e, ensinni _f e rotation of the two latches around their respective pivot points, with only one resilient element nt is provided that the two pressure ends press against the body, while gowns are available to remove uieser spring load. _v ■ 2. Device according to claim 1, characterized in that the two Latches have a toothed wheel segment, which wheel segments work together. 3. Device according to claims 1 and 2, characterized in that - that the spring load is supplied by a tension spring, the point of application of which on the latch is between the pivot point and the pressure end. 4. Device according to claim 3 »li characterized in that one of the The bolt is provided with a shoulder, or the fastening device 109811/0494. ■ " '. BAD ORiQiNAU -7- PHN.2297 fcnlL & l tend housing protrudes and with locked body «η a Ansei.l'jf started up. 5 · Oerät according to claim 4, characterized in that the "stop by a 3e _£ -renzun £ i; v.'and a slit-like opening i: r. Housing will. 109811/0494 Void