EP1679161A1 - Razor and method of manufacturing it - Google Patents

Abstract

Razor comprises a handle (2) having a hollow chamber (4) arranged in its middle region for releasing a blade (4R). The walls of the handle are partially elastically deformable in the region of the hollow chamber to press out the blade. An independent claim is also included for a method for producing the razor. Preferred Features: The razor has a further hollow chamber (5) for releasing aftershave by pressing the walls of the further hollow chamber. The hollow chambers have a connection to the handle surface via holes (6A, 6R).

Description

The invention relates to a new razor consisting of a handle part 2 and a shaving device 3 and a new method for its production.

From DE10117766A1 a razor with a shaving device is known, which has an additional dispenser for a shaving means, in particular for a shaving gel, the dispenser extending from the shaver spatially separated but extending parallel to it substantially over the entire length of the shaving head.

The known shaving device has a stable handle, in which the shaving agent is stored in a reservoir. The emptying of the reservoir via a drive device which is operated either manually or with an electric motor.

The known device is complicated to manufacture and complicated to handle, since the dispenser for the shaving foam impairs the shaving process. Also, the higher weight of the known shaver is suitable only for certain areas of skin, but not for a universal shave.

The object of the present invention is to develop a new razor and a method for its production, with which all parts of the face are easily accessible and a wet shaving using a shaving medium stored in the holder is economically feasible.

This object is achieved by the features specified in the claims. The new razor is characterized by a handle having a cavity, which is at least partially elastic in the region of the cavity is deformable to press out a stored in the cavity shaving by finger pressure.

Preferably, the cavity is subdivided into a space for a shaving means and into an area for an after shave. The elastic sidewalls then extend over both the shaving cavity cavity and the aftershave cavity.

A particularly favorable manufacturing method is characterized in that the handle is made in one piece from plastic, wherein the walls are formed thinner in the region of the cavities. As a result, an elastic deformability is achieved, so that the volume of the cavities for dispensing the shaving means or aftershave agent can be reduced.

An alternative to the above-mentioned one-piece manufacture of the razor according to the invention is that the handle is pressed in skeletal form of plastic and then coated with an elastic skin. This plastic skin is drawn by shrinkage taut over the rigid handle body wherein the nozzle openings are arranged in the region of the rigidly formed skeleton part in the central region of the razor handle.

• Figur 1 Frontansicht eines erfindungsgemäß ausgebildeten Rasierers
• Figur 2 Seitenansicht als Querschnitt des erfindungsgemäß ausgebildeten Rasierers

In the following the invention will be explained in more detail with reference to an embodiment.
Show it:

• Figure 1 front view of an inventively designed razor
• Figure 2 side view as a cross section of the inventively designed razor

According to FIG. 1, the razor according to the invention comprises a handle 2 and a shaving device 3 arranged at the upper end of the handle 2. In the middle region of the handle 2, the razor according to the invention has at least one cavity 4 for dispensing a shaving means 4R. Another space 5 can be arranged at the lower end of the handle part for dispensing an aftershave means 5A. Both rooms can also be made from a common cavity by subdivision.

• 1. Ausbildung der Hohlräume für das Rasiermittel und das Aftershavemittel
  Die Hohlräume sollen ein bestimmtes Volumen definieren, das gegenüber der Umgebung abgedichtet ist. An bestimmten, vorgegebenen Stellen ist mindestens eine Öffnung des jeweiligen Hohlraums angeordnet. Die Öffnung ist selbstdichtend, d.h. das Rasiermittel oder das Aftershavemittel gelangt nur an die Oberfläche, wenn ein ausreichend hoher Druck im Hohlraum aufgebaut wird.
  Der Druckaufbau erfolgt mechanisch durch Verringerung des Hohlraum-Volumens. Hierzu werden entweder die Seitenflächen oder die Frontseite des Rasierers im Bereich des jeweiligen Hohlraums elastisch ausgebildet. "Elastisch" bedeutet, dass per Fingerdruck die jeweilige Außenfläche soweit nach innen gedrückt werden kann, dass das Hohlraum-Volumen um ca. 10 bis 90 % verringert wird.
• 2. Befüllung und Nachfüllung der Hohlräume
  Zunächst ist daran gedacht, den erfindungsgemäßen Rasierer als Einwegprodukt auszubilden. Dies bedeutet, dass die Befüllung der Hohlräume nur einmalig erfolgt. Somit nach Deformation der entsprechenden Druckflächen keine Rückfederung in den Ausgangszustand im Regelfall erforderlich ist.
  Man kann aber auch jede Öffnung des Hohlraums mit einem beidseitig wirkenden Ventil ausstatten. Das Ventil hätte in der Auslassrichtung die Wirkung, dass es erst ab einem bestimmten Druck die Öffnung freigibt. In der Einlassrichtung sorgt das Ventil für einen Gasaustausch, um den Hohlraum wieder in seine Ursprungsform zurückzubilden.
  Die Herstellung des erfindungsgemäßen Rasierers erfolgt am Kopfteil des Rasierers wie üblich. Nur der Griff wird als Kunststoffteil mit neuer Konfiguration ausgebildet. Im einfachsten Fall wird der Griff einteilig mit einem einheitlichen oder in zwei Teilräumen abgetrennten Hohlräumen hergestellt. Als Kunststoffe kommen flexible Thermoplaste, PE, PVC, PA sowie Kombinationen der vorgenannten Stoffe zum Einsatz.
  Es sind mindestens zwei verschiedene Herstellungsverfahren denkbar:
• 3. Herstellung des erfindungsgemäßen Rasierers
  • a) Gießverfahren
    Der Rasierer wird als Spritzgussteil mit verlorenen Kernen hergestellt. Die verlorenen Kerne bilden die Hohlräume, über denen entweder beidseitig an den Schmalseiten oder an der Frontseite nachgiebige elastische Druckflächen eingearbeitet sind.
  • b) Der Rasierer wird in Skelett-Bauweise hergestellt, wobei eine flexible
    Außenhaut aus Kunststoff über ein tragendes Skelett gezogen wird, in dem das Rasiermittel und das Aftershavemittel als fertige Beutelpackung eingelegt sind. Die Öffnungen werden als Kunststoffdüsen ausgebildet, die in die Außenhaut eingeschraubt werden und mit ihrem zugespitzten Ende in die Beutelpackungen eindringen.
• 4. Rasierer-Variante mit Nachfüllpackung
  Der Griffteil des Rasierers ist als Hohlkörper ausgebildet und an seiner breitesten Stelle mit einem klemm- oder verschraubbaren Verschluss versehen. Nach Öffnung des Verschlusses können Rasiermittel und Aftershavemittel in Beutelform in das Innere des Halters eingelegt werden. Durch Verdrehen einer zugespitzten Düsenöffnung dringt diese in den jeweiligen Beutel ein und stellt eine Verbindung zur Außenfläche des erfindungsgemäßen Rasierers her. Alle übrigen Vorgänge des Betätigens über entsprechende Druckflächen des Griffteiles erfolgen wie oben beschrieben.

The shaving agent used is preferably a shaving gel RG. This comes by deforming the elastic walls 7, 8 via a nozzle opening 6R to the surface of the handle 2 and is distributed from there by hand to the face. The nozzle opening may be formed as a simple hole or as a valve opening. In the first case, the elasticity of the handle is to be such that, prior to first use, there is a thin skin over the opening 6R which ruptures when pressed out and then completely releases the opening.

• 1. Forming the cavities for the shaving and the Aftershavemittel
  The cavities are to define a certain volume that is sealed from the environment. At certain predetermined locations at least one opening of the respective cavity is arranged. The opening is self-sealing, ie the shaving agent or the aftershave agent only reaches the surface when a sufficiently high pressure is built up in the cavity.
  The pressure builds up mechanically by reducing the void volume. For this purpose, either the side surfaces or the front side of the razor are formed elastically in the region of the respective cavity. "Elastic" means that the respective outer surface can be pressed inwards by finger pressure so far that the cavity volume is reduced by approximately 10 to 90%.
• 2. Filling and refilling the cavities
  First, it is thought to form the razor according to the invention as a disposable product. This means that the filling of the cavities takes place only once. Thus, after deformation of the corresponding pressure surfaces no spring back to the initial state is required as a rule.
  But you can also equip each opening of the cavity with a double-acting valve. The valve in the outlet direction would have the effect that it only releases the opening at a certain pressure. In the Inlet direction, the valve provides for a gas exchange to rebuild the cavity back to its original shape.
  The manufacture of the razor according to the invention takes place at the head part of the razor as usual. Only the handle is designed as a plastic part with a new configuration. In the simplest case, the handle is made in one piece with a uniform or separated into two subspaces cavities. As plastics flexible thermoplastics, PE, PVC, PA and combinations of the aforementioned substances are used.
  At least two different production methods are conceivable:
• 3. Production of the razor according to the invention
  • a) casting process
    The razor is manufactured as an injection molded part with lost cores. The lost cores form the cavities, over which either on both sides of the narrow sides or on the front compliant elastic pressure surfaces are incorporated.
  • b) The razor is manufactured in skeleton construction, whereby a flexible
    Plastic outer skin is pulled over a load-bearing skeleton, in which the shaving means and the Aftershavemittel are inserted as finished bag packing. The openings are formed as plastic nozzles, which are screwed into the outer skin and penetrate with their pointed end in the bag packages.
• 4. Razor variant with refill pack
  The handle part of the razor is designed as a hollow body and provided at its widest point with a clampable or screwed closure. After the closure has been opened, shaving means and aftershave agents in bag form can be inserted into the interior of the holder. By turning a pointed nozzle opening, this penetrates into the respective bag and stops a connection to the outer surface of the razor according to the invention. All other operations of pressing on corresponding pressure surfaces of the handle made as described above.

The task of the new disposable razor is to be able to start with a wet shave without tools and without much preparation. Conventional razors, especially razors for wet shaving, are equipped with a shaving device, also called a razor head, and equipped with a handle. The razor head has razor blades for shaving. In wet shaving, a shaving agent is usually applied first to the areas of the skin to be shaved, such as shaving cream or shaving gel or foamed shaving gel, which aids shaving by the razor blades and thereby protects the skin areas to be shaved.

For this purpose, it is provided that in the handle of the razor, a dispenser in the form of two spaces for saving shaving and aftershave is to be created. To apply the shaving agent directly to the area of the skin to be shaved, it is necessary to simply hold one hand on the surface of the respective space in the handle so that the shaving agent or aftershave agent flows through a hole on the other hand.
This razor blade holder, shaving and aftershave donors are combined in one device and so an ideal wet shaver for travelers, vacationers, truckers, fitters, soldiers, etc. manufacture.

According to a particular aspect of the invention, a space for the shaving means and another for aftershave means is preferably provided in the handle of the shaver, and the shaving agent or the aftershave agent is dispensed from the respective space. The shaving agent and the aftershave agent are thus advantageously stored and carried in the razor itself and does not have to be transported in a separate container. This is particularly useful when the shaver is used while traveling or on the move and thus does not need to be thought of extra to the shaving kit.

The discharge from the storage space can be done manually by a pressure with the fingers (pointer and thumb) of a hand on the respective space, which is also preferably provided in the handle of the razor and by the advantageous manner, the delivery of shaving through a hole in the room , The operation of this pressure by the user of the razor can be particularly convenient by a preferably provided on an outer side of the handle of the razor operating surface.

• Fig. 1 eine schematische Vorderansicht eines Rasierers gemäß einem ersten Ausführungsbeispiels der Erfindung ;
• Fig. 2 eine schematische Seitenansicht des Rasierers der Fig. 1; und

Further advantages, objects and details of the invention will become apparent from the description of an embodiment with reference to the drawing; In the drawing shows:

• Fig. 1 is a schematic front view of a razor according to a first embodiment of the invention;
• Fig. 2 is a schematic side view of the razor of Fig. 1; and

Fig. 1 shows a schematic front view of a razor A according to a first embodiment of the invention. The razor A has a handle 2 on which at a first (in the drawing upper) end of a shaving device 3 and thereto, but in the drawing a little further down, on the handle 2, a dispenser in the form of space 4 for shaving means 4R, such as shaving gel and room 5 for aftershave means 5A are attached.

The shaving device 3 here is a razor head 3 having an elongate shape extending transversely of the handle 2 in the longitudinal direction. It has depending on two or three razor blades, which extend substantially over the entire length of the razor button. As can be better seen in the schematic side view of Fig. 2, the razor blades are the cutting especially slightly angled down in the razor head arranged so that they separate the shaved hair close to the skin during shaving, but not hurt the skin. The entire razor head 3 is removable with the two razor blades from the handle 2 of the razor A and interchangeable.

Alternatively, the razor blades of the razor head may be removable and replaceable razor blades. In this case, the razor head 3 is permanently mounted on the handle 2 via a joint bearing. Preferably then only a replaceable razor blade is provided.

The delivery of the shaving means 4R from the storage space 4 is achieved through the hole 6R, which creates pressure on the shaving means 4R stored in the storage space 4 so that it is pressed by the hole 6R to the hand. To actuate the pressure on an outer side of the handle 2, an actuating surface (dark painted RG) is provided, which is arranged so that it can be easily operated by a user of the razor before shaving.

The delivery of the aftershave means 5A from the storage space 5 is achieved through the hole 6A, which creates pressure on the aftershave means 5A stored in the storage space 5, so that it is pressed by the hole 6A to the hand after completion of the shave. To actuate the pressure on an outer side of the handle 2, an actuating surface (dark painted AS) is provided, which is arranged so that it can be easily operated by a user of the razor after shaving.

The handle 2 or storage space 4 can be made of any suitable material for this, which has sufficient flexibility.

Claims (8)

A razor comprising a handle (2) and a shaving device (3) arranged at the upper end of the handle and a shaving means store, characterized in that the handle has at least one cavity (4) in its middle region for dispensing the shaving means (4R) wherein the walls of the handle in the region of the cavity are at least partially elastically deformable to squeeze out the shaving means. A razor according to claim 1, characterized in that the razor has a further cavity (5) for dispensing an aftershave means (5A), wherein also in the region of the cavity (5), the wall of the handle is at least partially elastically deformable to the aftershave means (5A ) squeeze out. A razor according to one of the preceding claims, characterized in that the space or spaces (4, 5) each have a connection via a hole (6A, 6R) to the grip surface. A razor according to one of the preceding claims, characterized in that an actuating surface is formed within the flexible wall with a surface structure deviating from the grip surface. A razor according to one of the preceding claims, characterized in that the surface structure is additionally highlighted in color. Method for producing a razor according to one of the preceding claims, characterized in that the razor is produced from an injection-molded part with lost cores, wherein the cavities formed in the region of the cores are provided with elastic side walls. A method according to the preceding claim, characterized in that the razor is manufactured in skeleton construction, wherein a flexible outer skin made of plastic is pulled over a previously manufactured as a plastic pressed part skeleton. Having any of the preceding claims, characterized in that in the skeleton, which forms the handle, transverse segments are used, which limit the cavities up and down
and that a shrink film is pulled over the skeleton and shrunk by heat to a solid bond with the skeleton part.

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