DE1053971B - Safety razor - Google Patents

Description

GERMAN

The invention relates to a safety razor.

In the known designs of safety razors, the handle is usually with the one receiving the blade Share head screwed together or connected by means of a bayonet lock. These Fastening methods are time consuming and subject to a certain degree of uncertainty.

One embodiment of a safety razor has already been proposed in which the clamping piece and the shank of the safety razor is only held in the working position by a spring on one side will.

After releasing the retaining spring, the cover plate must be removed, with the risk of injuries on the razor blade is not excluded. Other forms of training have the same disadvantage afflicted by safety razors, in which the cover plate or the cover plate shaft, z. B. by a spring-loaded hook or elastic arms and the like. Is held. With unbalanced Forming such retaining springs and hooks also has the disadvantage that the razor blade is clamped with uneven pressure.

The invention is based on a known embodiment of such a safety razor, in which in a cavity of the handle, a shaft connected to the cover plate protrudes on its rear end is provided with holding surfaces for latching means under spring action, the Latching is canceled by pressing a push button on the side and the shaft is removed together with the cover plate can be released.

According to the invention, this construction of a safety razor is improved in that one both for Locking of the shaft with the cover plate as well as for propulsion of the detached shaft-cover plate unit Serving resilient device, which consists of two two-legged leaf springs, is provided, one of the leaf springs as an outer leaf spring at its free ends with the. Rest pieces to attack sew the end of the shaft and the other as an inner shorter leaf spring with propulsion pieces to attack are provided even closer to the end of the shaft.

The leaf springs mentioned can expediently be connected to one another, e.g. B. be soldered.

The end of the shaft is expediently designed as an undercut double cone, in which Locking position the locking pieces of the outer longer leaf spring on the one formed by the front cone Attack the undercut and the propulsion pieces of the inner shorter spring on the rear cone.

The longer leaf spring can be held in a detent position by a special leaf spring,

Applicant:
Rud. Osberghaus,
Solingen, Schützenstr. 110

Dr. Otto Osberghaus, Solingen, has been named as the inventor

gen their effect to open the safety razor when the push button is pressed laterally is moved. The outer leaf spring can also have a pin passing through its rear part be pivoted in the handle of the plane. Both of the aforementioned leaf springs can by one Screwed connection held together and thereby stiffened and kept at their free ends at a distance will.

In the handle or on the shaft stops or locking devices to limit the Opening movement of the shaft may be provided, e.g. B. a groove in the handle with an inserted spring ring, which enters a groove of the same when the shaft is advanced. The handle itself can be made with a roughly square, after the end to tapering cross-section in two parts, z. B. made of plastic, where the two parts of the handle z. B. are connected to each other by screw connections.

In the drawing, an embodiment of such a safety razor is exemplary and schematic shown.

Fig. 1 of the drawing shows the safety razor in a view with dash-dotted outlines and with im Inside the hollow handle are drawn springs;

FIG. 2 is a side view or a section along line AB in FIG. 1.

In detail, the safety razor consists of any material, such. B. metal, plastic and the like., Existing handle 1, the z. B. square cross-section on \ veisen and can be designed in two parts. The two halves of the handle are in any way, e.g. B. by means of countersunk screws, joined together or in another way, for. B. by gluing, welding, riveting, by brackets, etc. connected to each other.

The conventionally designed comb plate 2 of the safety razor is fixed to the handle 1 or after

809 787/80

Claims (7)

Detachably connected at will. The cover plate 3 placed on the comb plate 2, which together with the comb plate 2 normally includes a razor blade (not shown), has a shaft 4, the end of which is designed as an undercut double cone 5 and protrudes into the cavity 7 of the handle 1. In this cavity 7 a two-legged leaf spring 8 is arranged, the ends of which are rolled over or provided with pins 9, 10 and form locking pieces which, when the safety razor is ready for use, lie behind the undercut surfaces 6 of the double cone 5, so that the cover plate 3 is held in this position will. Instead of being conical in shape, the surfaces 6 can also have other shapes. Within the spring 8, a second leaf spring 11 is arranged, which is optionally connected to the spring 8, for. B. is soldered, and possibly held together with it by a screw 12. The screw connection 12 also serves to increase the rigidity of the spring arrangement 8, 11; If necessary, the screw connection 12 can be designed with the help of a spacer tube 13 surrounding the thread so that the connection 12, 13 simultaneously serves to determine the distance between the spring legs. The spring 11 is rolled over at its front ends or provided with pins 14, 15 which form the propulsion pieces and for this purpose protrude slightly beyond the wings of the leaf spring 8 to the side. To the side, the leaf spring 8 is also held in its position by a leaf spring 16 resting against the wall of the handle 1. In the handle wall a push button 17 is provided, the head 18 of which rests laterally on the leaf spring 8 and the outer plate 19 can be pressed into a recess 20 of the Griffsl. If the button 17 is pressed, the spring 8 is pushed aside while the leaf spring 16 is compressed. During this movement, the spring 8 rotates around a pin 21 which passes through the lower part of the spring and holds it in the handle 1. Then only the propulsion pieces 14, 15 rest on the cone 5, so that the shaft of the cover plate 3, which is no longer held, is pressed out with it and the safety razor is opened in this way. The safety razor can then be completely disassembled by pulling out the cover plate and returned to the original position according to FIG. 1 by reinserting it and pressing on the cover plate. The described form of the safety razor, z. B. the formation of the push button 17 and its arrangement, but in particular the formation of the springs holding the shaft 4 and their stops, and also the design of the incisions on the shaft 4, in which the stops are inserted, can also be modified; instead of a composite spring 8, 11, a single spring with corresponding stops can also be used, for example. In order to avoid excessive advancement of the shaft 4 when the holder of the shaft is loosened, stops or a locking mechanism can also be provided, which limit the snap-out of the shaft with the cover plate 3. For this purpose, z. B. be provided on the shaft 4 receiving bore of the handle 1, a groove 22 in which a z. B. open spring ring 23 is provided. If the shaft 4 is advanced under the pressure of the spring, this spring ring 23 enters a hollow fillet or groove 24 provided at the rear end of the shaft, so that the shaft is held in this position. The pulling out of the shaft part together with the cover plate as well as the reinsertion of these parts is not prevented by the spring ring 23. This locking or movement limitation for the shaft part 4 can also be modified. Furthermore, after releasing its holder, the pushing out of the shaft 4 can also be carried out with a different design of the propulsion spring; the propulsion spring can, for. B. be designed in the form of a dotted drawn helical compression spring 25, which is mounted in a corresponding manner in the handle 1 and presses on the cone 5 or on an end plate of the shaft 4 after the holder is lifted. Patent claims: 1. Safety razor, in which a shaft connected to the cover plate protrudes into a cavity of the handle, which shaft is provided at its rear end with holding surfaces for spring-loaded latching means, the latching being canceled by pressing a laterally arranged push button and thereby the shaft and cover plate can be released, characterized in that a resilient device serving both to lock the shaft (4) with the cover plate (3) and to propel the detached shaft-cover plate unit, which consists of two two-handled leaf springs (8, 11) , is provided, with one (8) of the leaf springs as an outer leaf spring at its free ends with the locking pieces (9, 10) for engagement near the end of the shaft (4) and the other (11) as an inner, shorter leaf spring with drive pieces ( 14,15) are provided for attack even closer to the end of the shaft (4) . 2. Nobel razor, according to claim 1, characterized in that the leaf springs (8,11) connected to one another, for. B. are soldered. 3. Safety razor according to claims 1 and 2, characterized in that the end of the shaft (4) is designed as a Hintexsehnittener double cone (5) , wherein in the detent position the locking pieces (9,10) of the outer longer leaf spring (8) on the attack the undercut (6) formed by the front cone and the propulsion pieces (14, 15) of the inner shorter spring (11) on the rear cone. 4. Safety razor according to claims 1 to 3, characterized in that the spring (8) is held in its latching position by a leaf spring (16) , against the action of which it is used for the purpose of opening the safety razor when the push button (17, 18, 19) can be moved sideways. 5. Safety razor according to claims 1 to 4, characterized in that the leaf spring (8) is pivotably mounted in the handle (1) about a pin (21) passing through its rear part. 6. Safety razor according to claims 1 to 5, characterized in that the springs (8, 11) held together by a Versahraubung (12) and thereby stiffened, and are held at their free ends at a distance. 7. Safety razor according to claims 1 to 6, characterized in that stops or locking devices for limiting the opening movement of the shaft (4) are provided in the handle (1) or on the shaft (4) , e.g. B. a hollow