HANDLE WITH AN EJECTOR FOR A WET RAZOR

20230112793 · 2023-04-13

    Inventors

    Cpc classification

    International classification

    Abstract

    The invention relates to a handle for a wet razor including a handle section as well as a coupling section for detachably attaching a cutting unit to the handle. The coupling section comprises a housing section including a housing cavity, which has an insertion opening at the end directed toward the cutting unit and an operating opening. The coupling section furthermore comprises a connector including fastening elements, which engage in the housing section, and including a peg, which protrudes beyond the plane of the insertion opening. The coupling section furthermore comprises an ejector, which is inserted into the housing cavity so as to be axially displaceable, including a spring element, which axially urges the ejector into the housing cavity, and a ram, which during axial displacement of the ejector in the direction toward the cutting unit extends beyond the plane of the insertion opening. Finally, the coupling section comprises an operating button, which passes through the operating opening and acts on the ejector so as to enable the axial displacement thereof.

    Claims

    1. A handle for a wet razor including an elongated handle section and a coupling section connected thereto, for detachably attaching a cutting unit to the handle, the coupling section comprising: a housing section comprising a housing cavity, said housing section having a longitudinal axis, an insertion opening at a first end directed toward the cutting unit, and an operating opening on a housing section side; a connector comprising fastening elements, which engage in the housing section, and a peg, which protrudes beyond the plane of the insertion opening and can be inserted into a peg hole of the cutting unit having a complementary shape; an ejector, which is inserted into the housing cavity so as to be axially displaceable at least in part, comprising a spring element, which axially urges the ejector into the housing cavity, and a ram, which during axial displacement of the ejector in the direction toward the cutting unit extends beyond the plane of the insertion opening so as to push against the cutting unit and displace the cutting unit axially on the peg away from the housing section, the spring element and the ram being one piece; and an operating button, which passes through the operating opening and acts on the ejector so as to enable the axial displacement thereof.

    2. The handle according to claim 1, wherein the peg of the connector has a peg cavity, which is axially aligned with the housing cavity and is open toward the housing cavity, the spring element extending into the peg cavity and engaging an inner wall of the peg cavity so as to axially urge the ejector into the housing cavity.

    3. The handle according to claim 1, characterized in that the operating button can be axially displaced in the operating opening in the direction toward the cutting unit to displace the ejector in the same direction.

    4. The handle according to claim 1, wherein the operating button can be displaced in the operating opening at an angle with respect to the longitudinal axis of the housing cavity so as to act on a wedge-shaped ramp of the ejector to axially displace the ejector in the direction toward the cutting unit, parallel to the longitudinal axis of the housing cavity.

    5. The handle according to claim 1, wherein the operating opening is arranged on an upper side of the housing section, and the operating button has an operating surface.

    6. The handle according to claim 1, wherein the planes in which the operating opening or the insertion opening extend are substantially perpendicular to one another.

    7. The handle according to claim 1, wherein the connector comprises a stop surface, which is substantially perpendicular to the longitudinal axis of the housing cavity and closes the insertion opening, the stop surface having at least one passage opening for the ram.

    8. The handle according to claim 7, wherein the fastening elements of the connector comprise at least two clamping fingers, which extend parallel to one another, and at least one flexible tongue including a catch lug arranged on a side of the stop surface opposite the peg and extending into the housing cavity.

    9. The handle according to claim 1, wherein the spring element is formed by at least one axially extending spring leg, and the ram is formed by at least one push rod which extends in a plane parallel to the spring leg.

    10. The handle according to claim 9, wherein the spring element of the ejector is formed by two axially extending spring legs, and the ram of the ejector is formed by two push rods that extend parallel to one another and that extend in a plane parallel to the spring legs.

    Description

    BRIEF DESCRIPTION OF THE DRAWINGS

    [0030] Further advantages, details and modifications will be apparent from the following description of preferred embodiments with reference to the drawings. In the drawings, which are not intended to limit the invention in any manner whatsoever,:

    [0031] FIG. 1 is an exploded view of a first embodiment of a handle according to the invention;

    [0032] FIG. 2 is a cross-sectional view of the first embodiment of the handle in the assembled state;

    [0033] FIG. 3 is a partially cut view from beneath of a housing section of the first embodiment;

    [0034] FIG. 4 is a longitudinal sectional view of the first embodiment in an idle position;

    [0035] FIG. 5 is a longitudinal sectional view of the first embodiment in an ejection position;

    [0036] FIG. 6 is an exploded view of a second embodiment of the handle according to the invention;

    [0037] FIG. 7 is a longitudinal sectional view of the second embodiment in an idle position; and

    [0038] FIG. 8 is a longitudinal sectional view of the second embodiment in an ejection position.

    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

    [0039] FIG. 1 shows a first embodiment of a handle according to the invention for a wet razor in an exploded view. The handle comprises a rear handle section 01, which is held by the user with the fingers while shaving, and a front coupling section 02, which extends between the handle section and a cutting unit to be carried (not shown). The coupling section 02 comprises a housing section 03, which in the shown embodiment adjoins the handle section 01 in one piece and includes a housing cavity 04. The housing cavity 04 has an insertion opening 06 that is directed toward the cutting unit, and an operating opening 07 situated on the upper side of the housing section 03.

    [0040] During assembly, an ejector 08 is inserted into the housing cavity 04 via the insertion opening 06. In this embodiment, the ejector 08 includes two spring legs 09, which act as a spring element and, after insertion into the housing cavity, also protrude beyond the housing section in an idle position (see FIG. 3). The ejector furthermore comprises two rams 11, which extend axially parallel to the spring legs 09, but in the idle position do not protrude beyond the housing section.

    [0041] After the ejector 08 has been inserted, a connector 12 is installed, which engages in corresponding grooves in the housing cavity 04 with two clamping fingers 13. In addition, the connector 12 has a flexible tongue including a catch lug 14, which latchingly engages on a detent edge in the housing cavity as soon as the connector has been inserted completely. The connector includes a forwardly directed peg 16, onto which the cutting unit is placed (not shown). A stop surface 17, which closes the insertion opening 06 and can, for example, be bonded or welded in place there, is located between the peg 16 and the clamping fingers 13. Two passage openings 18 are provided in the stop surface 17, through which the rams 11 pass as soon as the ejector is displaced from the axially rear idle position into the axially front ejection position.

    [0042] Finally, the coupling section 02 comprises an operating button 19, which at the upper side thereof has a depression-shaped operating surface, which is operated by the user when the cutting unit is to be detached or loosened from the peg. The operating button 19 sits in the operating opening 07 and, through the same, engages on a ramp 21 of the ejector 08 so as to bring about the axial displacement thereof. In the embodiment shown in FIGS. 1 to 5, the operating button 19 is axially displaced forward, in the direction toward the cutting unit, for this purpose by the user. As a result, the rams 11 protrude beyond the stop surface 17, where they engage on the cutting unit.

    [0043] FIG. 2 shows a cross-sectional view of the embodiment according to FIG. 1 when assembled. The selected cut surface extends parallel to the plane of the insertion opening 06 and also intersects the operating button 19, which has been inserted into the operating opening 07. It is apparent that the clamping fingers 13 of the connector 12 engage in grooves within the housing cavity 04, where they are fixed by clamping edges 22. Likewise, the two spring legs 09 are apparent, which rest partially against the wall of the housing cavity 04 with the outwardly directed surfaces thereof.

    [0044] FIG. 3 shows the housing section 03 in a partially cut view from beneath in the idle position. It is apparent here that a peg cavity 23 is formed within the peg 16, in which the spring legs 09 of the ejector 08 engage. In the idle position shown, the ejector is not displaced forward, so that the spring legs are not or only slightly preloaded. When the user pushes the ejector axially forward, the spring legs 09 move further into the peg cavity 23 and, due to the opening cross-section tapering there, are pushed toward one another, whereby a spring force is built. When the user releases the operating button 19, this spring force causes the ejector to be pushed back into the idle position. It is apparent that the spring element of the ejector can also be configured differently.

    [0045] FIG. 4 shows a longitudinal sectional view of the embodiment according to FIG. 1 in the idle position. The operating button 19 is in the rear position thereof, that is, lying furthest from the cutting unit. As a result, the ejector 08 is also in the rear position, and the rams 11 do not emerge from the stop surface 17.

    [0046] FIG. 5 shows a longitudinal sectional view of the embodiment according to FIG. 1 in the ejection position. The operating button 19 is in the front position thereof, that is, situated closer to the cutting unit compared to the idle position. As a result, the ejector 08 is in the front position, and the rams 11 emerge from the stop surface 17.

    [0047] FIG. 6 shows an exploded view of a second embodiment of the handle. The key difference compared to the aforementioned embodiment is that the operating button 19 cannot be axially displaced, but is moved vertically with respect to the longitudinal axis of the housing section 03 from an upper idle position into a lower ejection position, here by way of pivoting, for example. In the process, the operating button acts on the ramp 21, which has a wedge-shaped design, so that the ejector 08 is axially pushed forward when the operating button 19 is moved into the housing section 03 vertically with respect to the longitudinal axis.

    [0048] FIG. 7 shows a longitudinal sectional view of the embodiment according to FIG. 6 in the idle position. The operating button 19 is in the upper position thereof. As a result, the ejector 08 is in the rear position, and the rams 11 do not emerge from the stop surface 17.

    [0049] FIG. 8 shows a longitudinal sectional view of the embodiment according to FIG. 6 in the ejection position. The operating button 19 is in the lower, pivoted position thereof, that is, situated deeper in the housing cavity 04 than in the idle position. As a result, the ejector 08 is in the front position, and the rams 11 emerge from the stop surface 17.