Hair extender

Abstract

The present disclosure provides a hair extender. The hair extender comprises a main plate, a clamping assembly, and a transmission pressing plate; the main plate is provided with a sliding groove, a plurality of first clamping bosses extended forwards from a bottom of the sliding groove, first clamping recesses being provided on right sidewalls of the first clamping bosses, and a plurality of mounting grooves being provided on the bottom of the sliding groove; the clamping assembly is mounted in the sliding groove of the main plate, a plurality of second clamping bosses extended forwards from a push rod of the clamping assembly, second clamping recesses being provided on sidewalls of the second clamping bosses, and a reset spring of the clamping assembly abutting between a right portion of the sliding groove and the push rod; the main plate is provided with a moving groove, the transmission pressing plate being mounted in the moving groove, and a plurality of mounting rods being fixed under an extension portion of the transmission pressing plate. A fixing pin of a hair extension clip is disconnected from a C-shaped buckle, the fixing pin is fitted with the mounting rod of the transmission pressing plate, the C-shaped buckle is placed in a clamping cavity, real hair is placed in the C-shaped buckle of the hair extension clip, and the transmission pressing plate is driven to move downwards, until the fixing pin completely enters the C-shaped buckle, thereby fixing the real hair in the hair extension clip.

Claims

1. A hair extender for attaching hair extensions, comprising: a main plate comprising: a proximal end, a distal end, a front surface, a rear surface, a top surface and a bottom surface, where the front surface and rear surface extend from the distal end to the proximal end along a longitudinal direction and are disposed substantially parallel to each other, and the top surface and bottom surface extend from the distal end to the proximal end along the longitudinal direction in a substantially parallel relation to each other while being transverse to the front and rear surfaces, a sliding groove provided on the rear surface of the main plate, the sliding groove extending from the distal end to the proximal end along the longitudinal direction, where the sliding groove has a fixture block provided at the proximal end of the sliding groove, a plurality of first clamping bosses projecting from the sliding groove in a direction towards the front surface such that terminal ends of the first clamping bosses extend beyond the front surface, wherein the plurality of first clamping bosses are distributed at an interval and in a straight line along the sliding groove, each of the first clamping bosses of the plurality of first clamping bosses comprises a first clamping recess provided on a right sidewall of each of the first clamping bosses; a plurality of mounting grooves provided along the sliding groove and extending from the back surface through the main plate to the front surface, wherein each one of the mounting grooves corresponds to and is provided adjacent to one of the first clamping bosses, a moving groove extending transversely through the top surface and bottom surface; a clamping assembly mounted in the sliding groove of the main plate, the clamping assembly comprising: a push rod extending within the sliding groove along the longitudinal direction, a reset spring provided between a proximal end of the push rod and the fixture block such that a proximal end of the reset spring abuts the fixture block and the distal end of the reset spring abuts a proximal end of the push rod, a plurality of second clamping bosses projecting from the push rod and extending towards the front surface such that terminal ends of the second clamping bosses extend beyond the front surface, each of the second clamping bosses having a second clamping recess on a left sidewall thereof and each of the plurality of second clamping bosses extends through a corresponding one of the mounting grooves of the main plate such that the left sidewall of each of the second clamping bosses is disposed immediately adjacent to a right sidewall of a corresponding one of the first clamping bosses to define pairs of first and second clamping bosses, where each pair of first and second clamping bosses provide a clamping cavity defined by the first and second clamping recesses and each clamping cavity is configured to receive a hair extension clip; and a transmission pressing plate comprising: a proximal portion slidably disposed within the moving groove of the main plate such that the transmission pressing plate slides vertically, an extension portion extending longitudinally from the proximal portion toward the distal end of the main plate, where the extension portion is disposed above the plurality of first and second clamping bosses, a plurality of vertical mounting rods provided on a bottom surface of the extension portion, each one of the plurality of vertical mounting rods are disposed directly above a corresponding one of the clamping cavities; and an actuating element operatively connected to the clamping assembly and the transmission pressing plate; wherein during use, hair extension clips and a user's natural hair are disposed in the clamping cavities and upon actuation of the actuating element, the vertical mounting rods on the extension portion slide downwardly into the clamping cavities and the clamping assembly slides along the sliding groove toward the distal end of the main plate such that each of the plurality of second clamping bosses slide toward their corresponding plurality of first clamping bosses to clamp hair extension clips to a user's natural hair.

2. The hair extender according to claim 1, further comprising a buckle plate, the buckle plate comprising: a front buckle surface and a rear buckle surface where the rear buckle surface is fixed to the front surface of the main plate, a through-hole extending from the rear buckle surface to the front buckle surface, the through-hole configured to receive the plurality of first clamping bosses and the plurality of second clamping bosses through the through-hole such that the plurality of first clamping bosses and the plurality of second clamping bosses project through the through-hole and past the first buckle surface; a plurality of first limiting bosses projecting from the front buckle surface, the plurality of first limiting bosses located above the through-hole, each of the first limiting bosses having a first limiting recess on the right sidewall thereof, each of the first limiting recesses is disposed above and longitudinally offset from a corresponding one of the first clamping recesses such that each first limiting recess is closer to the proximal end than the corresponding one of the first clamping recesses; a plurality of second limiting bosses projecting from the front buckle surface, the plurality of first limiting bosses located below the through-hole, each of the second limiting bosses having a second limiting recess on the right sidewall thereof, each of the second limiting recesses is disposed below and longitudinally offset from a corresponding one of the first clamping recesses such that each first limiting recess is closer to the proximal end than the corresponding one of the first clamping recesses.

3. The hair extender according to claim 2, wherein each of the first clamping bosses of the plurality of first clamping bosses comprising a chamfer between the right sidewall and the terminal end thereof; each of the second clamping bosses of the plurality of second clamping bosses comprising a chamfer between the left sidewall and the terminal end thereof; each of the first limiting bosses of the plurality of first limiting bosses comprising a chamfer between the right sidewall and the terminal end thereof and; each of the second limiting bosses of the plurality of second limiting bosses comprising a chamfer between the right sidewall and the terminal end thereof.

4. The hair extender according to claim 1, further comprising a handle, connected to the main plate and the transmission pressing plate, where a middle portion of the handle is hinged with a bottom surface of the main plate, and an end of the handle is hinged with a bottom surface of the transmission pressing plate.

5. The hair extender according to claim 1, further comprising a hair fixing assembly, the main plate further comprising a fixed sliding groove, a fixed sliding groove defined by an aperture in a distal-most wall of the main plate, a recess in a middle wall of the main plate and a longitudinal space therebetween, where the middle wall of the main plate is disposed between the proximal and distal ends of the main plate, proximate to the moving groove and the middle wall is oriented transversely with respect to the top, bottom, front and rear surfaces of the main plate where the longitudinal space is provided above the plurality of first clamping bosses, and the fixed sliding groove is in communication with the moving groove; the transmission pressing plate further comprising a sliding block, the sliding block provided on a rear surface thereof, the sliding block further comprising a proximal block sidewall, a distal block sidewall, a top block surface, and a bottom block surface, the distance between the proximal block sidewall and distal block sidewall increases from the bottom block surface to the top block surface; the hair fixing assembly is mounted in the fixed sliding groove of the main plate, the hair fixing assembly comprising: a shaft lever, a first fixing block fixed at a distal end of the shaft lever, a second fixing block fixed at a proximal end of the shaft lever, a moving block movably disposed on the shaft lever between the first and second fixing blocks, and a hair fixing spring disposed on the shaft lever between the first fixing block and the moving block; the moving block and the second fixing block each comprising a displacement bulge, the displacement bulge of each the moving block and the second fixing block projecting into the moving groove of the main plate and in contact with the proximal block sidewall and distal block sidewall such that the displacement bulge of the second fixing block contacts the proximal block sidewall and the displacement bulge of the moving block contacts the distal block sidewall of the sliding block; wherein during use, the sliding block of the transmission pressing plate slides downward relative to the hair fixing assembly such that the distance between the second fixing block and the moving block increases, thereby compressing the hair fixing spring in order to fix or clamp a user's hair.

6. The hair extender according to claim 5, wherein, the sliding groove of the main plate communicates with the moving groove; a rear surface of the sliding block of the transmission pressing plate is provided with a elongated hole having a lengthwise direction parallel to the distal block sidewall; the push rod further comprising: a counter bore extending through a front surface of the push rod where the counter bore is aligned with the elongated hole of the transmission pressing plate; a reutilization assembly comprising: a reutilization spring and a connection rod inserted through the counter bore of the push rod and the elongated hole of the transmission pressing plate; a front end and a rear end of the connection rod are each provided with a convex ring, the reutilization spring is mounted over the connection rod, a front end of the reutilization spring abuts against a rear end surface of the push rod, and a rear end of the reutilization spring abuts against the convex ring at a rear end of the connection rod.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front view of an example of a hair extender of the present disclosure;

(2) FIG. 2 is a sectional view along direction A-A in FIG. 1;

(3) FIG. 3 is an enlarged view of portion B in FIG. 2;

(4) FIG. 4 is a back view of an example of a hair extender of the present disclosure;

(5) FIG. 5 is a perspective view of an example of a hair extender of the present disclosure;

(6) FIG. 6 is a front view of a transmission plate body of an example of a hair extender of the present disclosure;

(7) FIG. 7 is a perspective view of a transmission plate body of an example of a hair extender of the present disclosure;

(8) FIG. 8 is a perspective view of a main plate of an example of a hair extender of the present disclosure;

(9) FIG. 9 is a perspective view of a buckle plate of an example of a hair extender of the present disclosure;

(10) FIG. 10 is a perspective view of a push rod of an example of a hair extender of the present disclosure;

(11) FIG. 11 is a back view of a transmission plate body and a hair fixing assembly of an example of a hair extender of the present disclosure;

(12) FIG. 12 is a perspective view of FIG. 11;

(13) FIG. 13 is a perspective view of a connection rod of an example of a hair extender of the present disclosure;

(14) FIG. 14 is a front view of a hair extension clip of an example of a hair extender of the present disclosure;

(15) FIG. 15 is a perspective view of a C-shaped buckle of an example of a hair extender of the present disclosure;

(16) FIG. 16 is a perspective view of a fixing pin of an example of a hair extender of the present disclosure;

(17) FIG. 17 is a structure view of an engagement between a C-shaped buckle, a first clamping boss and a second clamping boss of an example of a hair extender of the present disclosure;

(18) FIG. 18 is a perspective view of another example of a C-shaped buckle of an example of a hair extender of the present disclosure;

(19) FIG. 19 is a side view of an engagement between a C-shaped buckle and a buckle plate of an example of a hair extender of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(20) Refer to FIGS. 1 to 13.

(21) A hair extender comprises a main plate 1, a clamping assembly, a transmission pressing plate, a buckle plate 7, a handle 6, a hair fixing assembly, and a reutilization assembly.

(22) A lower portion of a rear surface of the main plate 1 is provided with a sliding groove 1a running distal and proximal. A fixture block 1b is placed at a right portion of the sliding groove 1a. Ten first clamping bosses 1c are extended from a bottom of the sliding groove 1a to go beyond a front surface of the main plate 1, distributed at an interval, and arranged in a straight line. A chamfer is formed between a terminal end and a right side surface of the first clamping boss 1c. A right sidewall of the first clamping boss 1c is provided with a first clamping recess 1d. The bottom of the sliding groove 1a is provided with ten mounting grooves 1e running through the front end surface and the rear end surface of the main plate 1. The mounting grooves 1e are one-to-one corresponding to the first clamping bosses 1c, and each of the mounting grooves 1e is located at a right side of the corresponding first clamping boss 1c.

(23) The main plate 1 is provided with a moving groove 1f running upwards and downwards, and the sliding groove 1a of the main plate 1 passes the moving groove 1f.

(24) The main plate 1 is provided therein with a fixed sliding groove 1g running distal and proximal. A middle portion of the fixed sliding groove 1g is located above the first clamping boss 1c, and exposed outside the main plate 1 in correspondence with the ten first clamping bosses 1c. The fixed sliding groove 1g is communicated with the moving groove 1f of the main plate 1.

(25) The clamping assembly is mounted in the sliding groove 1a of the main plate 1, and comprises a push rod 2 and a reset spring 3. Ten second clamping bosses 2a are extended forwards from positions on the push rod 2 corresponding to the mounting grooves 1e of the main plate 1, run through the mounting grooves 1e, and are one-to-one corresponding to the first clamping bosses 1c. A chamfer is formed between a terminal end and a left side surface of the second clamping boss 2a. A second clamping recess 2b is provided at a position on a sidewall of each of the second clamping boss 2a corresponding to the first clamping recess 1d of one of the first clamping bosses 1c. The reset spring 3 is provided in the sliding groove 1a, a right end of the reset spring 3 abuts against a fixture block 1b of a right portion of the sliding groove 1a, a left end of the reset spring 3 abuts against a right end portion of the push rod 2. The reset spring 3 acts on the push rod 2 so that the second clamping boss 2a abuts against the first clamping boss 1c to maintain a balance of the push rod 2. The second clamping bosses 2a may be in a reciprocating motion distal and proximal in the mounting grooves 1e and one of the first clamping recesses 1d and one of the second clamping recesses 2b together construct a clamping cavity matched with the hair extension clip.

(26) The transmission pressing plate is mounted in the moving groove 1f, and comprises a transmission plate body 4 and a pressing plate body 5. A rear end surface of the transmission plate body 4 is provided with a sliding block 4a. Chambers are formed between left and right sidewalls of the sliding block 4a and a bottom block surface of the sliding block 4a, respectively. The transmission plate body 4 is fitted with the moving groove 1f of the main plate 1 and provided with an extension portion 4b extending towards an upper left side of the main plate 1. The pressing plate body 5 is mounted under the extension portion 4b of the transmission plate body 4. Ten vertical mounting rods 5a are extended from a lower side of the pressing plate body 5, located above the sliding groove 1a of the main plate 1, and one-to-one corresponding to the clamping cavities.

(27) A rear surface of the sliding block 4a of the transmission plate body 4 is provided with a elongated hole 4c having a lengthwise direction consistent with a running direction of a left sidewall of the sliding block 4a.

(28) A lower side of the main plate 1 is hinged with a handle 6, a middle portion of the handle 6 is hinged with a lower portion of the main plate 1, and a left portion of the handle 6 is hinged with a lower end of the transmission plate body 4 of the transmission pressing plate.

(29) A front side of the main plate 1 is fixed with a buckle plate 7, which is provided with a through-hole 7a matched with the first clamping bosses 1c and the second clamping bosses 2a. The first clamping boss 1c of the main plate 1 and the second clamping boss 2a of the push rod 2 run through the through-hole 7a and protrude from a front side of the buckle plate 7. Ten first limiting bosses 7b are extended forwards from a of the buckle surface and located above the through-hole 7a, a chamfer being formed between a terminal end and a right side surface of the first limiting boss 7b. Right sidewalls of the first limiting bosses 7b are provided with first limiting recesses 7c one-to-one corresponding to the first clamping recesses 1d of the first clamping boss 1c. A projection of a sidewall of the first limiting recess 7c onto a horizontal plane is located at a right side of a projection of corresponding first clamping recess 1d onto the horizontal plane, i.e., a projection position of the first limiting recess 7c on the horizontal plane is slightly more right than a projection position of corresponding first clamping recess 1d on the horizontal plane.

(30) Ten second limiting bosses 7d are extended forwards from a buckle surface and located under the through-hole 7a, a chamfer being formed between a terminal end and a right side surface of the second limiting boss 7d. Right sidewalls of the second limiting bosses 7d are provided with second limiting recesses 7e also one-to-one corresponding to the first clamping recesses 1d of the first clamping bosses 1c. A projection of a sidewall of the second limiting recess 7e onto a horizontal plane is located at a right side of a projection of corresponding first clamping recess 1d onto the horizontal plane, i.e., a projection position of the second limiting recess 7e on the horizontal plane is also slightly more right than a projection position of corresponding first clamping recess 1d on the horizontal plane.

(31) The hair fixing assembly is placed in the fixed sliding groove 1g, and comprises a shaft lever 8e, a first fixing block 8a, a second fixing block 8c, a hair fixing spring 8b, and a moving block 8d. The first fixing block 8a, the hair fixing spring 8b, the moving block 8d, and the second fixing block 8c are orderly mounted on the shaft lever 8e from left to right. The first fixing block 8a and the second fixing block 8c are fixed to the shaft lever 8e, respectively. Each of the moving block 8d and the second fixing block 8c is provided with a displacement bulge 8f. The displacement bulges 8f of the moving block 8d and the second fixing block 8c protrude into the moving groove 1f and fitted with left and right end surfaces of the sliding block 4a of the transmission pressing plate, respectively.

(32) A front end surface of the push rod 2 is provided with a counter bore 2c corresponding to the elongated hole 4c of the transmission pressing plate. The push rod 2 is further provided with a reutilization assembly comprising a reutilization spring 9a and a connection rod 9b. The connection rod 9b is fitted with the counter bore 2c of the push rod 2, and a front end and a rear end of the connection rod 9b are provided with a convex ring 9c. The reutilization spring 9a is mounted over the connection rod 9b, a front end of the reutilization spring 9a abuts against a rear end surface of the push rod 2, and a rear end of the reutilization spring 9a abuts against the convex ring 9c at a rear end of the connection rod 9b.

(33) Refer to FIGS. 14 to 16.

(34) In order to better understand the working principle of the hair extender, a structure of a hair extension clip is introduced herein.

(35) The hair extension clip comprises a C-shaped buckle 10 and a fixing pin 11. An outer wall of the C-shaped buckle 10 is provided with a rabbet 10a communicated with an inner hole, and a fixing ring 10b is extended from a lower end of the C-shaped buckle 10, wig being connected to the fixing ring 10b. The fixing pin 11 is fitted with the inner hole of the C-shaped buckle 10, an upper sidewall of the fixing pin 11 is provided with a limiting bulge 11a fitted with the rabbet 10a of the C-shaped buckle 10, and an upper end surface of the fixing pin 11 is provided with an assembly hole 11b matched with the mounting rod 5a of the transmission pressing plate.

(36) During usage, ten hair extension clips are mounted on the ten mounting rods 5a of the transmission pressing plate, respectively, and each of the mounting rod 5a is fitted with the fixing pin 11 of each of the hair extension clip.

(37) The handle 6 is operated to drive the transmission plate body 4 of the transmission pressing plate to move downwards, so that the hair extension clip fixed on the pressing plate body 5 is driven to move downwards, and the C-shaped buckle 10 of the hair extension clip contacts the first limiting boss 7b of the buckle plate 7. Since the projection position of the first limiting recess 7c on the horizontal plane is slightly more right than the projection position of corresponding first clamping recess 1d on the horizontal plane, the mounting rod 5a is inclined proximal to drive the whole hair extension clip to deviate proximal by a small displacement and enter a clamping cavity formed by the first clamping boss 1c of the main plate 1 and the second clamping boss 2a of the push rod 2, until the C-shaped buckle 10 of the hair extension clip fully enters the clamping cavity, and then the mounting rod 5a returns to the initial vertical state under a stress of itself.

(38) The handle 6 is released so as to move the sliding block 4a of the transmission plate body 4 upwards under the action of the hair fixing assembly, so that the hair extension clip is driven to move upwards, and the C-shaped buckle 10 of the hair extension clip abuts against a lower end surface of the first limiting boss 7b, and cannot move upwards along with the pressing plate body 5, so that the C-shaped buckle 10 of the hair extension clip is separated from the fixing pin 11.

(39) Next, real hair is placed in the C-shaped buckle 10 of the hair extension clip. The handle 6 is operated again to drive the transmission plate body 4 of the transmission pressing plate to move downwards; the hair fixing assembly is fitted with the sliding block 4a of the transmission plate body 4; the displacement bulge 8f of the moving block 8d and the displacement bulge 8f of the second fixing block 8c move on the left and right sidewalls of the sliding block 4a, respectively; since the chamfers are formed between the bottom block surface and the left and right end surfaces of the sliding block 4a, respectively, the distance between the moving block 8d and the second fixing block 8c is increasingly larger; the hair fixing spring 8b of the hair fixing assembly is extruded by the moving block 8d; the hair fixing spring 8b clamps the real hair placed in the C-shaped buckle 10; meanwhile, the mounting rod 5a of the transmission pressing plate drives the fixing pin 11 of the hair extension clip to move downwards; a lower end surface of the C-shaped buckle 10 abuts against an upper end surface of the second limiting boss 7d to ensure that the C-shaped buckle 10 does not move along with the fixing pin 11, until the fixing pin 11 fully enters the C-shaped buckle 10, thereby completing the hair extension operation.

(40) In addition, if the hair extension clip used in the hair extension operation is a reutilized hair extension clip, the opening angle of the C-shaped buckle 10 will be too large. Under normal circumstances, it is difficult for the C-shaped buckle 10 having too large an opening angle to be tightly fitted with the fixing pin 11 again. In that case, the connection rod 9b of the reutilization assembly is pressed down, so that the connection rod 9b runs through the push rod 2 and enters the waist-shaped hole 4c of the sliding block 4a; at the same time of the above normal hair extension operation, the push rod 2 moves distal under the action of the sliding block 4a, i.e., the second clamping recess 2b of the push rod 2 moves distal to urge the C-shaped buckle 10 in the clamping cavity to be deformed by force and recovered into a state fitted with the fixing pin 11, so as to complete the reutilization of the hair extension clip.

(41) As illustrated in FIG. 17, when the C-shaped buckle of the hair extension clip is interposed between the first clamping recess 1d of the first clamping boss 1c of the main plate 1 and the second clamping recess 2b of the second clamping boss 2a of the push rod 2, the rabbet 10a of the C-shaped buckle faces the chamfer of the first clamping boss 1c and the chamfer of the second clamping boss 2a, i.e., the rabbet 10a of the C-shaped buckle faces the front side of the hair extender, while the fixing ring 10b on the C-shaped buckle is interposed between the first clamping boss 1c and the second clamping boss 2a.

(42) In addition, as illustrated in FIG. 18, the C-shaped buckle 10 in this example differs from that in the example as illustrated in FIG. 15 only in that an axis of an inner hole 10b1 of a fixing ring 10b is perpendicular to a center line of the C-shaped buckle 10.

(43) The fixing ring 10b is a hook-shaped structure, with one end fixedly connected to an outer wall of the C-shaped buckle 10, and the other end bent towards and clings to the outer wall of the C-shaped buckle 10, so as to form an inner hole 10b1 capable of hanging bunched wig upper end connecting strings between the fixing ring 10b and the outer wall of the C-shaped buckle 10.

(44) In this example, referring to FIG. 19, the second limiting boss 7d at the front side of the buckle plate 7 of the hair extender is abutted below the fixing ring 10b, so as to position the C-shaped buckle 10, and prevent the C-shaped buckle 10 from moving downwards and going away from the clamping by the first clamping boss 1c and the second clamping boss 2a.

(45) In the present disclosure, the number of the first clamping bosses 1c, the second clamping bosses 2a, the first limiting bosses 7b or the second limiting bosses 7d is not limited to ten, and any other number may also be selected upon the actual operation demand, which is not restricted herein.

(46) The above descriptions just illustrate one embodiment of the present disclosure. It shall be pointed out that many modifications and improvements can be made by a person skilled in the art without deviating from the principle of the present disclosure, and those modifications and improvements shall fall within the protection scope of the present disclosure.