FI57709C - HAOLLARE FOER EN RAKHYVELSENHET - Google Patents

Description

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Patent- och raglatarstyralMn Amekan uti «| d och uti.« KrtttM pubucund 30.06. oo (32) (33) (31) Pyy ^ * «y utuolkuu * —Begird prtocKet 16.05.72

England-England (GB) 22939/72 (71) Wilkinson Sword Limited, Sword House, Totteridge Road, High Wycombe, Buckinghamshire HP13 6EJ, England-England (GB) (72) Colin Arthur Atkins, Staines, Middlesex, England-England ( GB) (7I +) Leitzinger Oy (5k) Razor unit holder - Hallare för en rakhyvelsenhet

The invention relates to a holder for a razor blade unit consisting essentially of a rigid part to which one or more razor blades are attached, the rigid part forming a protective surface arranged at a predetermined distance from the cutting edge of the razor blade or razor blades, the holder comprising a latch to force the latch to the lock position, and a removal member to remove the razor blade unit from the holder when the unit needs to be replaced.

Such razor unit holders are known which have a latch for securing the razor unit to the holder and removal means for removing the razor unit from the holder when the blade unit needs to be replaced, whereby the spring forces the latch to the position where it secures the razor unit to the holder. When the razor unit needs to be removed from the holder, pressure is applied to the removal members and this pressure exceeds the spring force on the latch, releasing the razor unit to be removed from the holder. The disadvantage of this known holding device is that it requires a considerably complex spring, which is expensive to manufacture and is unreliable and prone to interference. In addition, the fitting of the spring to the latch and the removal members is relatively complicated.

2 57709

The object of the invention is to further develop said type of razor blade holder so that said drawbacks are avoided.

This object is achieved according to the invention in that the latch, spring and discharge member consist of parts forming a single integral part provided with a latch part adapted to secure the razor unit to the holder and including an outlet end arranged to engage the rear of the razor unit while in the holder. the outlet ends are relatively movable against each other against the spring force generated by the internal resilience of the integral part.

According to a preferred embodiment of the invention, the integral part has two interconnected branches, the free end of the second branch forming an outlet end and the free end of the second branch being shaped to form a latch.

When the removal member is formed as a push button, according to a preferred embodiment of the invention, the push button is integral with the integral part.

The invention achieves the particular advantage that the integral part can be injection molded from plastic at low cost and serves three different functions, namely acting as a latch, a spring and a removal member. In addition to the cheaper design, this facilitates assembly and, in the absence of a complex spring, the susceptibility to interference in use is reduced.

In the following, a preferred embodiment of the invention will be described in more detail with reference to the accompanying drawings, in which Fig. 1 shows a holder seen from the side.

Figure 2 shows a rear view of the holder.

Figure 3 shows the holder cross-sectioned in the middle and turned to the opposite position as in Figure 1, with the razor blade unit in place.

Figure 4 shows a side view of the removal member on a larger scale.

57709

Figure 5 shows a top view of the removal member.

Fig. 6 shows a section taken along the line VI-VI in Fig. 2. Fig. 7 shows a section taken along the line VII-VII in Fig. 2 and Fig. 8 shows a section taken along the line VIII-VIII in Fig. 3.

As can be seen from the drawing, the structure of the holder is designed so as to be able to attach to it a razor blade 11 (Fig. 3) permanently attached to a substantially rigid plastic member 10 having a protective surface 10a at a predetermined distance from the cutting edge 11a. As illustrated, in use, the rigid member 10 is in a holder 12 assembled from the front portion 13 and the rear portion 14 between jaws 14a and 14b formed of the same portion as the rear portion 14 of the holder. The rigid member 10 is held in place between the jaws 14a and 14b by the latch portion 15 15a. The latch portion 15a is connected to a recess 10b on the underside of the rigid member 10. The latch portion 15a is at the free end of the second leg of the bifurcated and unitary discharge member 15. The second branch of the discharge member 15 has a button 15b which protrudes through an opening 14c in the rear part 14 of the detent.

To remove the razor blade 11, the user presses, suitably with a thumb, the rear of the discharge button 15b so that the end 15c of the branch of the discharge member 15 with the discharge button 15b transmits pressure to the rear of the rigid member 10. The latch portion 15a and the surface of the recess 10b of the rigid member 10 interact with each other so that the latch portion 15a moves downward and forward, which is allowed by the flexibility of the removal member 15, allowing both arms to move toward each other. The rigid member 10 supporting the blade 11 is released and exits the holder 12 safely and quickly due to the pressure exerted by the user removal member 15.

Prior to use, razor blades of the type described are usually held in a container so that the rear edge of the rigid member can be accessed. To remove the new razor blade from the container, the opening between the jaws 14a, 14b is placed towards the rear edge of the rigid member 10. The contact of the underside of the rigid member 10 with the latch portion 15a causes the latter to be compressed backwards until the recess 10b is at the latch portion 15a. In this case, the latch 4 57709 engages with the recess 10b, whereby the rigid member 10 remains between the jaws 14a and 14b so that the razor blade remains reliably in the holder and can be removed from the container.

The front part 13 and the rear part 14 of the holder are suitably both plastic moldings. As shown in Fig. 6, to facilitate assembly, protrusions 13a are provided at each end of the upper surface of the rear portion 13, whereby these protrusions engage respective recesses 14d on the underside of the jaw 14b. As shown in Fig. 7, the recesses 14e of the webs 14f on the inner surface of the rear portion 14 engage the respective protrusions 13b on the inner surface of the front portion 13, the front portion 13 and the back portion being correctly located longitudinally with respect to each other. A downwardly extending tongue 14g (Fig. 3) is made at the lower end of the rear part 14, which is inwards and secures the front part 13 and the rear part 14 together before they are joined in a suitable manner, for example by ultrasonic welding. If desired, a metal weight 16 can be housed inside the holder 12 for the desired balance and handling comfort.

Claims (3)

5 57709 A holder for a razor blade unit consisting essentially of a rigid part (10) to which one or more razor blades (11) are attached, the rigid part (10) forming a protective surface (10a) arranged at a preset distance from the cutting edge of the razor blade or razor blades ( 11a), wherein the holder (12) includes a latch for securing the razor unit to the holder, a spring for forcing the latch into the locking position, and a removal member for removing the razor unit from the holder (12) when the unit needs to be replaced, characterized in that the latch, spring and removal member are integral parts ( 15) provided with a latch portion (15a) adapted to secure the razor unit to the holder and comprising an outlet end (15c) arranged to engage with the rear of the razor unit while in the holder, the latch portion (15a) and the outlet head (15c) being relatively movable against the spring force generated inside the integral part (15) ä flexibility. Holder according to claim 1, characterized in that the integral part (15) has two interconnected branches, the free end of the second branch forming an outlet end (15c) and the free end of the second branch being shaped to form a latch (15a). A holder according to claim 1, wherein the removal member comprises a push button, characterized in that the push button (15b) is integral with the integral part (15).