RU2607054C2 - Precision beard trimmer - Google Patents

Abstract

FIELD: personal demand items.

SUBSTANCE: invention relates to means for cutting. Trimmer for beard trimming contains a cutting system, a comb with the working window, cutting length control wheel, and means of the wheel and comb interaction. Said means ensure conversion of the wheel rotational motion in straight movement of the comb and consist of a spiral groove on inner surface of the wheel and a ledge. Ledge is arranged on the comb or on the intermediate part connecting the comb with the wheel.

EFFECT: result is increased accuracy of cutting length control.

9 cl, 7 dwg

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a beard trimmer equipped with means for precisely adjusting the length of the haircut. It also relates to a removable flange with the aforementioned integrated adjustment means.

State of the art

[0002] Beard trimmers should allow short haircuts, typically from 0.5 to 6 mm. The adjustment of the length of the haircut must be very precise in order to achieve what is called the “three-day bristle” effect.

[0003] Precision beard trimmers are typically equipped with telescopic ridges that move almost along the fixed blade of the trimmer.

[0004] Such a trimmer is described, for example, in WO 2008/028332, where a telescopic ridge is moved by driving a wheel provided with a groove cooperating with a cam rigidly connected to the ridge.

[0005] A disadvantage of trimmers equipped with telescopic combs is that during shaving, the length of the haircut may be reduced if the user inattentively tilts the trimmer.

[0006] There are other means of adjusting the length of the haircut on beard trimmers. You can quote the adjustment with a screw, such as that described in document EP 0325326. The length of the haircut is adjusted by means of the wheel by moving the spike inside the spiral groove made on the inner surface of the wheel. The rotation of the wheel, thus, allows the user to move the comb in the longitudinal direction and thereby change the length of the haircut.

[0007] From the point of view of the design of the ridge and the calculation of the size of the grooves, the trimmer according to EP 0325326 does not allow cutting with lengths of less than a few millimeters. Therefore, it is not suitable for short haircuts with the effect of a “three-day bristle”.

OBJECTS OF THE INVENTION

[0008] An object of the present invention is to provide a trimmer equipped with means for precisely adjusting the length of the haircut.

[0009] More specifically, an object of the present invention is to provide a trimmer with the ability to adjust the length of the haircut to the nearest tenth of a millimeter, moreover, for the length of the haircut in the range from a few tenths of a millimeter to several millimeters.

[0010] Furthermore, it is an object of the present invention to provide a trimmer in which the cutting length cannot be accidentally changed during use.

Disclosure of invention

[0011] The present invention relates to a beard trimmer comprising:

- haircut system;

- a comb equipped with a working window for the cutting system, and the specified comb is mounted on the holder as a folding;

- adjusting wheel for haircut length; and

- means of interaction of the wheel and the ridge, and these means allow, when used, to convert the rotational movement of the wheel into the rectilinear movement of the ridge.

[0012] According to particular embodiments of the invention, the trimmer includes at least one feature or a corresponding combination of the following features:

- means of interaction contain a spiral groove made in the inner surface of the wheel, and a protrusion located either on the ridge or on an intermediate part connecting the specified ridge with the specified wheel;

- the holder with a comb and a wheel forms a removable accessory;

- the spiral groove contains an outlet to release the protrusion and allow the crest to tilt;

- the pitch of the spiral groove is configured so as to allow adjustment of the tenth of a millimeter;

- the haircut line of the haircut system is practically in the same plane as the working window when the comb is adjusted in its lowest position;

- the holder contains a latch that allows you to attach a removable accessory to the specified trimmer;

- the holder contains two lateral supporting surfaces, allowing you to unlock the latch by pressing;

- a stepping device that allows you to lock the wheel in a certain position.

[0013] The present invention also relates to an accessory for a beard trimmer, comprising:

- a comb equipped with a window allowing the cutting system to be at the level of the user's skin during shaving, and this comb is mounted on the holder as a folding;

and

- a wheel located on the specified holder, while the specified wheel contains on its inner surface a spiral groove interacting during use with the protrusion located on the comb, to align the position of the comb and, thereby, the length of the haircut.

Brief Description of the Figures

[0014] Figures 1a-1d illustrate, using circuit diagrams, the operation of the trim length adjusting means in a trimmer according to the invention. When using a peg, it interacts with a spiral groove to move the comb. The spike may be located directly on the ridge, as shown in figures 1a and 1b, or located on a lever mounted on the ridge, as shown in figures 1c and 1d.

[0015] Figure 2 is a three-dimensional view of a trimmed beard trimmer according to the invention. For clarity, the accessory is presented in the open position with a peg outside the wheel groove.

[0016] Figures 3a-3d are three-dimensional views at different angles of an accessory comb for mounting on a trimmer according to the invention. The accessory comb is also open.

[0017] Figure 4 is a side view of an accessory comb designed to serve as a nozzle for a trimmer according to the invention. The crest is also presented in the open position.

[0018] Figure 5 is a front view of a trimmer according to the invention with an integrated comb.

[0019] Figures 6a and 6b are two three-dimensional views of a trimmer according to the invention with an integrated comb. In figure 6a, the cover is removed. In figure 6b, a portion of the image of the ridge and wheel is also removed to show the position of the peg in the groove of the wheel. Bold lines show the boundaries of the part that moves in the longitudinal direction during use.

[0020] Figure 7 is a variant of the means of interaction of type "father-mother" in the trimmer according to the invention. Only the means of interaction are shown and the part of the wheel is erased so that the spiral groove is visible.

Explanations

(1) trimmer

(2) Accessory or comb integrated in trimmer

(3) Comb

(a) Upper part, also called the first part

(b) The lower part, also referred to as the second part

(4) Connection point or axis connecting both connection points

(5) Holder

(6) Window of the ridge

(7) Blade

(8) Wheel

(9) Handle

(10) Spiral Groove

(11) Projection (peg, flange, spike)

(12) Cylindrical part

(13) Wheel base

(14) Crest recess

(15) Lever

(16) Spiral groove output

(17) Lock

The implementation of the invention

[0021] The present invention relates to a beard trimmer equipped with means for precisely adjusting the length of the haircut.

[0022] According to the present invention, trimmer 1 comprises a comb 2 that can be inserted, also referred to as an accessory, or integrated, such as shown in figures 2 and 5, respectively.

[0023] In figures 3a-3d, the comb-accessory is presented at different angles in the open position for clarity. To describe the built-in ridge we will refer to figure 5 or to figures 6a-b.

[0024] The accessory or integrated ridge 2 comprises a ridge 3 mounted on the holder 5 as a hinge. The tilt axis passes through the junction 4 located on either side of the holder. As already mentioned, the latter is intended to be mounted on the trimmer or integrated into the trimmer.

[0025] The comb 3 has the form of two parts 3a and 3b, separated by a window 6, allowing the passage of the blade 7 trimmer (see figures 1a-d, 3c and 6a). The first part 3a serves as a supporting surface on the shaved face and allows, depending on the distance with respect to the holder, to change the length of the haircut. The second part 3b, located in front of the edge of the blade, acts as a barrier between the skin and the blade, if the user inattentively tilts the trimmer. The presence of this protection also avoids accidentally reducing the length of the haircut during use.

[0026] The adjustment of the length of the haircut is carried out by means of interaction, allowing to convert the rotational motion into a linear motion. By means of interaction we mean means of the “father-mother” type in the most general sense. Without pretending to be complete, one can cite in this category a protrusion and a spiral groove, as illustrated in figures 1a-d, 2-4, 6a-b and 7, or a completely different structural unit, where at least two elements interact to transform rotational motion in a rectilinear motion in the broad sense.

[0027] According to the present invention, the user adjusts the length of the haircut due to the ring-shaped wheel 8 (cylinder) located on the holder 5 or on the trimmer handle 9, as illustrated in figures 3a-d and 5, respectively.

[0028] The groove of the spiral form 10 is made in the inner surface of the wheel, this groove is schematically shown in figures 1a-1d. When using pegs 11, also referred to as a protrusion, moves in the groove 10 during rotation of the wheel. The stud 11 can be located directly on the ridge 3, as shown in figures 1a and 1b. It can also be located at a distance from the ridge 3 and connected to the latter via a lever 15, as shown in figures 1C and 1d.

[0029] In the case of the accessory ridge, the pegs 11 are mounted on the first part 3a of the ridge opposite the wheel 8 located in the holder 5 (see figure 3b). The wheel 8 rests on one side on the base 13. On the other hand, it sits in a recess 14 having a complementary shape, which is done in the first part 3a of the ridge. In use, moving the peg 11 in the groove pushes or brings the comb closer to the holder. Figures 1a and 1b show a comb with cutting lengths adjusted to minimum or maximum, respectively. In the first case, the blade 7 is located in the window 6 and is at the level of the skin of the user. In the second case, the ridge is significantly moved away from the blade. In addition, there is a position where the comb is folded back more than 90 ° to clean the comb. As shown in figure 3d, the spiral groove 10 goes to the edge of the wall of the wheel, exit 16, which allows you to release the peg and thereby tilt the comb more than 90 °. This cleaning position can also be seen in figure 4.

[0030] In the case of a ridge integrated in the trimmer, the protrusion 11 is located on the cylindrical part 12 inside the handle 9 (see figures 5, 6a-6b and 7). The cylindrical part 12 is connected to two levers 15, they themselves are connected to the ridge 3. When used, the rotation of the wheel 8 causes the longitudinal movement of the levers 15 and, thereby, the removal or approximation of the ridge 3 with respect to the holder 5. Figures 1c and 1d schematically illustrate the ridge with haircut lengths adjusted to minimum or maximum, respectively.

[0031] According to the invention, the pitch of the spiral groove can be selected depending on the movement of the desired ridge. The groove can stretch along the entire perimeter of the wheel or only on part of the perimeter. Preferably, the groove is designed to cut from 0.2 to 12 mm, and more preferably from 0.2 to 5 mm, with an accuracy of the order of a tenth of a millimeter.

[0032] Still, according to the present invention, the ridge holder can be movable in the case of an integrated ridge. The interchangeable ridge holder, in turn, may include a latch 17 that allows it to be attached to the trimmer (see Figure 3a). In addition, the interchangeable ridge holder may include two lateral abutment surfaces to enable release of the latch when the user applies pressure.

[0033] The holder may also be provided with a stepping device that allows the wheel to be locked in a selected position.

[0034] In a configuration with a wheel on the trimmer handle, the present invention also encompasses an embodiment in which the comb is removable.

Benefits

[0035] A comb provided with a window according to the invention allows the blade to pass and thus short haircuts of the order of a few tenths of a millimeter, as opposed to EP 0325326.

[0036] The adjustment system according to the invention is particularly adapted to adjusting the cutting length for combs provided with a window, as opposed to the EP 0325326 system configured to perform longitudinal movement of the comb.

[0037] The adjustment of the length of the haircut due to the means of interaction according to the invention provides precise adjustment. Thus, one turn of the wheel, that is, a movement of the order of 78 mm for a wheel with a diameter of 25 mm, allows the crest to be moved approximately 5 mm apart.

[0038] The adjustment system according to the invention, connected to the comb with a window, also allows you to maintain a constant length of haircuts during shaving. Indeed, on the one hand, in the case of accidentally folding the trimmer by the user, it is the lower part of the comb that forms the protection and thus prevents the reduction of the length of the haircut. On the other hand, in the absence of rotation of the wheel, the protrusion cannot move in the groove even if there is pressure exerted on the comb during shaving. Therefore, the movement of the ridge is irreversible.

[0039] The spiral groove is provided with an outlet that allows the crest housing to be released and thus provides easy cleaning.

Claims (17)

1. Beard trimmer (1), comprising: - haircut system (7); - a comb (3) with a working window (6) for the clipping system (7), and the specified comb (3) is mounted on the holder (5) with the possibility of folding; - wheel (8) for adjusting the length of the haircut; and - means of interaction of the wheel (8) and the ridge (3), and these means are made with the possibility of using the conversion of the rotational movement of the wheel (8) into the rectilinear movement of the ridge (3) and include a spiral groove (10) made on the inner surface of the wheel (8 ), and a protrusion (11) located on the ridge (3) or on the intermediate part (12) connecting the specified ridge (3) with the wheel (8). 2. The trimmer (1) according to claim 1, characterized in that the holder (5) forms a removable accessory (2) with a comb (3) and a wheel (8). 3. The trimmer (1) according to claim 1 or 2, characterized in that the spiral groove (10) contains an outlet (16) to release the protrusion (11) and to ensure the crest (3) is tilted. 4. The trimmer (1) according to claim 1 or 2, characterized in that the step of the spiral groove (10) is made providing adjustment to a tenth of a millimeter. 5. Trimmer (1) according to claim 1 or 2, characterized in that the cutting line of the cutting system (7) is located in the same plane as the working window (6) when the comb (3) is adjusted so that it is in its lowest position. 6. The trimmer (1) according to claim 1 or 2, characterized in that the holder (5) contains a latch (17) that allows you to attach a removable accessory (2) to the specified trimmer (1). 7. The trimmer (1) according to claim 6, characterized in that the holder (5) has two lateral supporting surfaces, which enable unlocking of the latch (17) by pressing. 8. The trimmer (1) according to any one of paragraphs. 1, 2, 7, characterized in that the holder (5) contains a stepping device that allows you to lock the wheel (8) in a certain position. 9. Accessory (2) for the trimmer (1) for the beard according to any one of paragraphs. 1-8, containing: - a comb (3) provided with a window (6) that allows the clipping system (7) to be at the level of the user's skin during shaving, and the specified comb (3) is mounted on the holder (5) as a folding, and - a wheel (8) for adjusting the length of the haircut, located on the specified holder (5), while the specified wheel (8) has on its inner surface a spiral groove (10) interacting during use with the protrusion (11) located on the ridge (3 ) to reconcile the position of the comb and the length of the haircut.

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