MXPA99011337A - Folding razor - Google Patents

Abstract

Un rastrillo desechable doblable incluye una cabeza que se dobla en el mango del rastrillo y es alineada con el mango cuando se encuentra en una posición abierta o extendida.

Description

BACKGROUND OF THE INVENTION This invention relates to a rake that includes a razor head that can be bent and stored in the handle of the rake and that allows a bidirectional shaving. Conventional rakes include a handle having a razor head fixed perpendicularly on the handle in a "T" shaped configuration. These conventional rakes usually require a separate piece of cover to protect the user against accidental cuts when the rake is not in use. This additional cover piece is inconvenient since it is difficult for the user to know where to find it, and complicates the manufacturing process. In addition, these rakes can not be transported comfortably during a trip. The rake having a T-shaped configuration can also be difficult to manipulate when used in cutaneous areas that have contours or are narrow and typically does not allow bidirectional shaving. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a rake having a razor head that is bent into the rake body when not in use. Another object of the present invention is to provide a rake that can be transported conveniently and safely.

A further object of the invention is to provide a rake that can be manufactured easily, ergonomically and that allows a bidirectional shaving. These and other objects of the present invention are achieved by providing a rake having a hollow handle including a plurality of openings spaced axially along each side of the handle. The handle has a first recess on one side to receive a razor head which is rotatably fixed on the upper end of the rake handle. The shaving head includes a projection or lip extending axially above the pivot point at the upper end of the rake handle. The handle also includes a second recess on the opposite side in relation to the side of the handle that includes the first recess. By applying a force on the lip portion, the shaving head pivots about the upper part of the handle and the lip portion is engaged in the second recess in the rake handle. Alternate slits are placed throughout the range. The wall portions on each side are directly opposite the openings on the opposite side. This design facilitates and reduces the manufacturing cost of the rake handle. In addition, this handle design helps prevent slippage when shaving in wet condition. BRIEF DESCRIPTION OF THE DRAWINGS Further objects and advantages of the present invention will be observed more precisely from a reading of the detailed description taking into account the attached drawings in which: Figure 1 is a front view of a compliance rake with the invention; Figure 2 is a rear view of a rake in accordance with the invention; Figure 3 is a side view of a rake - in accordance with the invention; Figure 4 is a front view of a rake in an unfolded position in accordance with the invention; Figure 5 is a rear view of a rake in the unfolded position in accordance with the invention; Figure 6 is an enlarged view of the upper position of the rake illustrated in Figure 2; Figure 7 is a top view of a rake handle according to the invention; Figure 8 is a top perspective view of a creel cartridge for use in the invention; Figure 9 is a bottom view of a rake cartridge for use in the invention; Figure 10 is a bottom view of a shaving head according to the invention; Figure 11 is a bottom perspective view of a razor head in accordance with the invention; and Figures 12 (a) and (b) are graphic illustrations of a cross-sectional side view and side view, respectively, of a rake in accordance with the invention. DETAILED DESCRIPTION OF THE PREFERRED MODALITIES With reference to Figure 1, a rake 1 according to the invention includes a hollow handle 3 having a plurality of openings 5. The openings 5 on opposite sides of the hollow handle 3 are displaced axially in relation to each other. they. Accordingly, an opening 5 faces a rib 7 or solid portion on the opposite side of the handle. A razor head 9 is bent into a recess 11 in one side of the rake handle 3. A lip or projection 13 extends at an angle from the upper portion of the rake head 9. As can best be seen in Figure 2, the handle 3 includes a recess 15 on one side of the handle for receiving and engaging the lip 13. The recess 11 has a shape suitable for conforming to the lip 13. As illustrated in Figure 3, the portion of the lip 13 it extends axially above the upper end of the handle 3 at an angle of up to 45 ° from the shaving head 9. The application of an off on the lip 3 causes the shaving head 9 to pivot in a movement directed from the recess 11 to an extended position ready for the shaving operation. A rake according to the present invention in an extended or unfolded position appears in Figure 4. The shaving head 9 is rotatably connected to the magician 3 through a link 17 in the upper portion of the handle 3 and includes a sheet cartridge 12. The razor head 9 can pivot about a theta angle of up to 270 °, preferably up to 225 ° from its bent position. As can be seen from FIG. 5, the lip 13 is securely engaged in the recess 11 in the rake handle when the rake is in the unfolded or extended position. The rake head illustrated in Figures 6 and 7 includes a base portion 10 on which a sheet cartridge 12 sits. As best seen in Figure 7, the base portion 10 can form the back of the cartridge of sheets 12. In this case, the sheets 19 are seated directly on the rear portion 10. This eliminates the need for a separate back portion for the sheet cartridge 12. A sheet cartridge arrangement having a separate rear portion appears in Fig. 8. Typically, the sheet cartridge 12 includes two rake blades 19 thus enabling bidirectional shaving. The sheet cartridge 12 also includes a sheet cover 14 that supports the rake leaves 19. The sheet cover 19 snaps into a sheet cartridge backing portion 16 illustrated in FIG. 9 having apertures 18 dispersed therebetween. solid sections 20. The openings 18 facilitate the drying of the rake leaves and cartridge after a shaving operation in the wet state. The sheet cartridge including a separate back portion can be fixed on the base portion 10 by a non-permanent means such as, for example, projections which snap into the corresponding recesses or slide in a receiving portion of the base portion 10. Alternatively, the sheet cartridge including a separate back portion may be fixed permanently on the base portion 10 by welding, riveting, or by applying glue. The razor head of the present invention is rotatably connected to the handle of the rake. As shown in Figure 10, the projection 13 of the rake head 9 includes two arms 21 having circular projection pins 23. The pins 23 are pressed into slots 25 in the handle 3 to secure the shaving head on the handle as illustrated in Figure 11. The pins 23 can rotate in the slots 25 which allows the shaving head to pivot around the rake handle. As shown in figures 12 (a) and (b), a locking catch 27 corresponds to the recesses 16 in the shaving head illustrated in FIG. 7 and keeps the rake in a closed position when it is not in use. Unlike conventional rakes, the razor head, instead of being placed perpendicular to the rake handle is aligned with it. In open position, the shaving head presents a backward angle which allows a natural shaving movement so the hand moves in a side-to-side direction. The angle between the shaving head and the rake handle is preferably less than 90 °, more preferably up to 45 °. The bidirectional shaving head allows the user to shave with much more speed. The rake handle can be molded in one piece in a two-part molding tool made of polystyrene or other suitable material. The base portion of the rake head is made of the same material as the handle and is also made by means of injection molding. A preassembled sheet cartridge including the razor blades is then attached to the base portion 10 of the razor head through a permanent or non-permanent means. The sheet cover and the back portion can also be molded from polystyrene or other suitable materials. In an alternative method for preparing the rake, the base portion 10 forms the back of the sheet cartridge. In this case, the sheet cover and the base portion 10 are formed separately by injection molding. Rake sheets are then seated directly on the backing portion 10. The sheet cover is then pressed into the base portion in which the rake leaves are seated. After assembly of the rake head, said head is connected in a rotatable manner on the rake handle by the pressure fitting of the circular projection pins 23 in the recesses 25. Even when the invention has been described in relation to specific embodiments, those skilled in the art will readily be able to devise many modifications and variations of said invention, Therefore, such variations and modifications are included within the intended scope of the invention, For example, the rake described herein in accordance with the present invention may be disposable or it can be a standard system rake for a permanent or semi-permanent use.

Claims (1)

1. CLAIMS A rake comprising: a hollow handle having a bottom end, an upper end and two sides, the handle includes a plurality of openings axially spaced along each side of the handle, a first recess for receiving a shaving head on one side of the handle, a second recess for receiving a lip portion of the razor head on the opposite side of the handle, a pivot means located on the upper end of the handle, and a razor head rotatably secured on the handle. the pivot means, the shaving head includes a lip portion extending axially above the pivoting means, where the application of a force on the lip portion causes the shaving head to pivot about the pivot means and engage the lip portion in the second recess. A rake according to claim 1, wherein the axially spaced openings in one side of the handle are positioned axially relative to the axially spaced openings in the opposite side of the handle. A method for manufacturing a rake, comprising the steps of: forming a hollow handle having a bottom end, an upper end and two sides, the handle includes a plurality of openings axially spaced along each side of the handle, first recess for receiving a razor head on one side of the handle, a second recess for receiving a lip portion of the razor head on opposite side of the handle, a pivot means located on the upper end of the handle, and fixing in a manner rotating a razor head on the pivot means, the razor head includes a lip portion extending axially above the pivot means, where the application of a force on the lip portion causes the lip portion to pivot about the pivoting means and engaging the lip portion in the second recess. A method according to claim 3, wherein the axially spaced apertures on one side of the handle are offset axially relative to the apertures axially spaced on the opposite side of the handle. A method according to claim 3 or according to claim 4, comprising the injection molding of the hollow handle and the injection molding of the shaving head.