GB2456591A

GB2456591A - Adjustable hair thinning scissors

Info

Publication number: GB2456591A
Application number: GB0805617A
Authority: GB
Inventors: Hasegawa Makoto
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-24
Filing date: 2008-03-28
Publication date: 2009-07-22
Anticipated expiration: 2028-03-28
Also published as: GB0805617D0; GB2456591B

Abstract

The pair of hairdressing scissors comprise a first blade 10, a second blade 30 and an adjustment member 20. Both blades 10, 30 are toothed 12, 32. The adjustment member 20 is pivotally mounted on the first blade 10. The second blade 30 is eccentrically pivoted on the adjustment member 20. The adjustment member 20 can be rotated to change the relative position and the contact area between the two blades 10, 30, thus changing the amount of hair cut.

Description

2456591

HAIRDRESSING SCISSORS

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a trimming tool having a plurality of cutting 5 edges, and more particularly to a pair of hairdressing scissors capable of adjusting the amount of hair cut.

Description of the Prior Art

Hair trimming is conventionally performed by dividing a handful of hair into several small handfuls of hair for respective trimming, which is called as thinning 10 technique. Thus the conventional hair trimming is time-consuming and quite troublesome.

In order to solve the above problem, a conventional pair of hairdressing scissors was developed on the market. It has two blades, which are pivoted to each other in a stagger manner to form an X-shape. Each blade includes a plurality of 15 spaced cutting edges. The respective cutting edges of one blade are aligned with the respective cutting edges of the other blade after the two blades are pivoted to each other. The cutting edges of the two blades can cut the hair during hair cutting. The gaps between the cutting edges are provided for accommodating hair in such a manner that some hair can be left while some hair is cut down during hair trimming, 20 simply achieving the thinning effect.

However, in order to shape various hairstyles, a real professional hairstylist certainly will prepare numerous pairs of hairdressing scissors with different cutting capabilities. Even sometimes, in order to trim a small portion, plural pairs of

hairdressing scissors with different cutting capabilities are required, and this causes much inconvenience to the hairstylist.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.

5 SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a pair of hairdressing scissors, which can change the amount of hair cut by changing the relative position between the blades.

In order to achieve the above objective, the pair of hairdressing scissors of the 10 present invention comprises a first blade, a second blade and an adjustment member. The adjustment member is pivotally mounted on the first blade and has an axis. The second blade is eccentrically pivoted to adjustment member relative to the axis in such a manner that the two blades are pivoted to each other to form an X-shape by the adjustment member.

15 By rotating the adjustment member, the second blade can be linked to move around the axis, so that the relative position between the first blade and the second blade can be changed, thus changing the amount of hair cut.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded view of a pair of hairdressing scissors in accordance 20 with the present invention;

Fig. 2 is a perspective view of the pair of hairdressing scissors in accordance with the present invention;

Fig. 3 is a cross-sectional of the pair of hairdressing scissors in accordance

with the present invention;

Fig. 4a illustrates that the distance between the eccentric hole and the cutting edges of the first blade is the minimum in accordance with the present invention;

5 Fig. 4b illustrates that the cutting edges of the two blades are fully aligned with each other in accordance with the present invention;

Fig. 5a illustrates that the distance between the eccentric hole and the cutting edges of the first blade gradually increases in accordance with the present invention;

10 Fig. 5b illustrates the contact area between the two blades gradually descends in accordance with the present invention;

Fig. 6a illustrates that the distance between the eccentric hole and the cutting edges of the first blade is the maximum in accordance with the present invention;

15 Fig. 6b illustrates that the contact area between the two blades is the minimum in accordance with the present invention;

Fig. 7 is an exploded view showing that the first blade is additionally provided with a ball in accordance with the present invention;

Fig. 8 is a cross-sectional view showing that the first blade is additionally

20 provided with a ball in accordance with the present invention;

Fig. 9 illustrates that the adjustment member is inserted in the two blades in accordance with the present invention;

Fig. 10 is a cross-sectional view showing that the adjustment member is

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inserted in the two blades in accordance with the present invention;

Fig. 11 illustrates that the two blades are inserted in the adjustment member in accordance with the present invention; and

Fig. 12 is a cross-sectional view showing that the two blades are inserted in 5 the adjustment member in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present 10 invention.

Referring to Figs. 1-3, a pair of hairdressing scissors capable of adjusting the amount of hair cut in accordance with the present invention comprises:

A first blade 10 includes a round through hole 11 and a plurality of spaced cutting edges 12 that are continuously arranged. Between the respective cutting 15 edges 12 is defined a gap.

An adjustment member 20 includes a round protruding pivoting pillar 21 to be inserted into the through hole 11 of the first blade 10, the adjustment member 20 can be pivoted relative to the first blade 10 around an axis a of the pivoting pillar 20, and the adjustment member 20 is further formed in the pivoting pillar 21 with an 20 eccentric hole 22 aligned with the axis a. When the adjustment member 20 rotates relative to the first blade 10, the eccentric hole 22 can move around the axis a.

A second blade 30 includes a through hole 31 and a plurality of spaced cutting edges 32 that are continuously arranged. Between the respective cutting edges 12 is

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defined a gap. One end 41 of a pivoting member 40 is sequentially inserted through the eccentric hole 22 of the adjustment member 20 and the though hole 31 of the second blade (in the present embodiment, the through hole of the second blade is square, and the pivoting member is formed with a similar structure to mate with the 5 through hole of the second blade, further, the through hole of the second blade can also be round, triangular, pentagonal, etc.). In addition, a locking member 50 is assembled to the end 41 of the pivoting member 40 (in the present embodiment, the end of the pivoting member includes inner threads, the locking member includes outer threads, so that the locking member utilizes its outer threads to mate with the 10 inner threads of the end for screwing the pivoting member 40 with the locking member 50), so as to restrict the adjustment member 20, the first blade 10 and the second blade 30 between the pivoting member 40 and the locking member 50 sequentially and enable the two blades 10, 30 to be pivoted to each other to form an X-shape, and the cutting edges 12 of the first blade 10 are aligned with the cutting 15 edges 32 of the second blade, respectively.

When in use, the two blades 10, 30 can pivot relative to each other around the pivoting member 40. During hair cutting, the hair located between the cutting edges 12, 32 can be cut down and the hair located in the gaps between the cutting edges 12, 32 can be left.

20 It is to be noted that, when the adjustment member 20 is rotated, the eccentric hole 22 of the adjustment member 20 can move round the axis a, and the pivoting member 40 inserted in the eccentric hole 20 can also be driven to move around the axis a together with the second blade 30, so that the contact area between the cutting

edges 12 of the first blade 10 and the cutting edges 32 of the second blade 30 can be changed.

Referring to Fig. 4a, when the adjustment member 20 rotates to a position where the distance X between the eccentric hole 22 and the cutting edges 12 of the 5 first blade is the minimum, and the cutting edges 12 of the first blade 10 are fully aligned with the corresponding cutting edges 32 of the second blade 30. Thus, at this moment, the amount of hair cut by each snip of the pair of hairdressing scissors is the maximum.

As shown in Fig. 5a, when the adjustment member 20 is rotated to gradually 10 increase the distance X between the eccentric hole 22 and the cutting edges 12 of the first blade 10 , the contact area between the cutting edges 12, 32 of the first blade 10 and the second blade 30 descends gradually as shown in Fig. 5b. Thus, the amount of hair cut by each snip of the pair of hairdressing scissors also descends gradually.

15 As shown in Fig. 6a, when the adjustment member 20 is rotated to a position where the distance X between the eccentric hole 22 and the cutting edges 12 of the first blade 10 is the maximum, the contact area between the cutting edges 12, 32 of the first blade 10 and the second blade 30 is the minimum as shown in Fig. 5b. Thus, at this moment, the amount of hair cut by each snip of the pair of hairdressing 20 scissors is the minimum.

As known from the above, rotating the adjustment member 20 can change the distance X between the eccentric hole 22 and the cutting edges 12 of the first blade 10, thus changing the contact area between the cutting edges 12, 32 of the first blade

10 and the second blade 30 and changing the amount of hair cut by each snip of the hairdressing scissors. Therefore, the hairstylist doesn't require preparing a plurality pairs of different hairdressing scissors with different cutting capabilities for trimming hair. Hence, the present invention has the advantages: more convenient and 5 time-saving.

Further referring to Figs. 7-8, the pair of hairdressing scissors can be formed with a cavity A in which a ball B is disposed. The ball B is located between the first blade 10 and the adjustment member 20. The adjustment member 20 is further formed with at least one groove C correspondingly to the ball B. Locating the ball B 10 in one of the grooves C can make the adjustment member 20 get stuck, thus achieving the positioning of the adjustment member 20.

Referring to Figs. 9-10, when being located between the two blades 10, 30, the adjustment member 20 extends toward the first blade 10 and the second blade 30 (both sides of the adjustment member) with the pivoting pillar 21 and the pivoting 15 member 40, respectively. Further, the pivoting member 40 eccentrically protrudes on the adjustment member 20 relative to the pivoting pillar 21, and the pivoting pillar 21 and the pivoting member 40 of the adjustment member 20 are inserted into the through holes 11, 31 of the first blade 10 and the second blade 30, respectively (in the present embodiment, the pivoting pillar and the pivoting member of the 20 adjustment member are both cylinders, and the through holes of the two blades are both round or can also be in any other forms as long as the inserted pivoting pillar and the inserted pivoting member are allowed to rotate without displacement). Such arrangements can also offer the function of adjusting the amount of hair cut by each

snip.

Further referring to Figs. 11-12, the adjustment member 20 can be provided with two concaves 23, 24, and one concave 24 is eccentrically located on the adjustment member 20 relative to the other concave 23. Each of the first blade 10 5 and the second blade 30 is provided with a protruding pillar 13, 33, and the protruding pillars 13, 33 of the first blade 10, and the second blade 30 are inserted into the two concaves 23, 24 of the adjustment member 20 (in the present embodiment, the protruding pillars of the two blades are both cylinders, and the two concaves of the adjustment member are both round, or can also be in any other forms 10 as long as the inserted protruding pillars of the two blades are allowed to rotate without displacement). Such arrangements can also offer the function of adjusting the amount of hair cut by each snip.

As understood from the above respective embodiments, the central concept of the present invention is that, the two blades are pivotally mounted on an adjustment 15 member, respectively, and the rotating axes of the two blades are different, by such a structure, the objective of changing the amount of hair cut by each snip can be achieved.

While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments 20 may be made without departing from the scope of the present invention.

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Claims

WHAT IS CLAIMED IS:

1. A pair of hairdressing scissors capable of adjusting the amount of hair cut by each snip, comprising:

a first blade including a plurality of cutting edges and a through hole;

5 an adjustment member pivoted in the though hole of the first blade by a pivoting pillar having an axis, the pivoting pillar being formed with an eccentric hole aligned with its axis; and a second blade including a plurality of cutting edges and a through hole, and a pivoting member being inserted through the eccentric hole of the pivoting pillar and 10 the through hole of the second blade in such a manner that the second blade is eccentrically pivoted to the pivoting pillar of the adjustment member, the two blades are pivoted to each other to form an X-shape, and the respective cutting edges of the two blades are aligned with each other, the adjustment member is rotated to enable the second blade to move around the axis of the pivoting pillar of the adjustment 15 member, so that a contact area between the two blades is changed, thus changing the amount of hair cut.

2. The pair of hairdressing scissors capable of adjusting the amount of hair cut as claimed in claim 1, wherein a locking member is further assembled to one end of the pivoting member to sequentially restrict the adjustment member, the first blade

20 and the second blade between the pivoting member and the locking member.

3. The pair of hairdressing scissors capable of adjusting the amount of hair cut as claimed in claim 1, wherein the first blade is provided with a ball located between the first blade and the adjustment member, and the adjustment member is provided

with at least one groove correspondingly to the ball for retaining the ball.

4. A pair of hairdressing scissors capable of adjusting the amount of hair cut comprising:

a first blade including a through hole and a plurality of cutting edges;

5 an adjustment member extended with a pivoting pillar and a pivoting member at both sides thereof, the pivoting member being eccentrically protruded on the adjustment member relative to the pivoting pillar, the pivoting pillar being inserted into the through hole of the first blade; and a second blade including a through hole and a plurality of cutting edges, the 10 through hole of the second blade being provided for insertion of the adjustment member in such a manner that the two blades are pivoted to each other to form an X-shape, the cutting edges of the two blades are aligned with each other.

5. A pair of hairdressing scissors capable of adjusting the amount of hair cut comprising:

15 a first blade including a protruding pillar and a plurality of cutting edges;

an adjustment member formed with two concaves, one of the two concaves being eccentrically located on the adjustment member relative to the other of the two concaves, the protruding pillar of the first blade being inserted into the other of the two concaves of the adjustment member; and 20 a second blade including a protruding pillar and a plurality of cutting edges,

the protruding pillar of the second blade being inserted into the eccentrically-located concave of the adjustment member in such a manner that the two blades are pivoted to each other to form an X-shape, the cutting edges of the two blades are aligned

with each other.

6. A pair of hairdressing scissors substantially as hereinbefore described with reference to and as shown in the accompanying drawings.

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