CN102398276A

CN102398276A - Scissors holding structure

Info

Publication number: CN102398276A
Application number: CN2010102820609A
Authority: CN
Inventors: 林重江
Original assignee: Nusharp Inc
Current assignee: Nusharp Inc
Priority date: 2010-09-15
Filing date: 2010-09-15
Publication date: 2012-04-04

Abstract

The invention discloses a scissors holding structure, which comprises two cutting edges and two pivoted handle parts, wherein the two cutting edges are fixed at one ends of the two handle parts; the two handle parts are provided with holding parts for holding a thumb and four fingers respectively; a first bone extends from a thumb base joint at the hand root of the thumb; the other end of the first bone is provided with a first joint which is connected with the second bone; the center of each holding part for accommodating the thumb is provided with an insertion part; each holding part is sleeved on the first bone of the thumb; a first joint relative to the thumb is provided with a retaining part; and the first joint of the thumb is positioned in a range which passes through the insertion part and is outside the retaining part. By adopting the scissors holding structure, the safety, controllability and scissoring quality of scissors can be enhanced. During shearing operation, a first holding part is sleeved on the base part of the thumb of a user, and the other four fingers of the hand of the user are matched with a second holding part for driving the cutting edges to carrying out scissoring, so that the scissors can always keep in the stable state in the scissoring process, and the scissoring quality and safety are enhanced.

Description

The scissors handgrip

Technical field

The present invention relates to a kind of scissors handgrip.

Background technology

By present scissor construction; Like Fig. 1, shown in 2, this scissors 10 has the

blade

11,12 that two 1 ends articulate each other, and the end of these

blade

11,12 nearly articulated sections links shank 13,14 in addition; The other end of this two shank 13,14 then is provided with the

grip part

15,16 of central annular; Wherein, when user's hand 20 is placed through this first grip part 15 with thumb 21, drive first blade 11 through this first shank 13 simultaneously; Other four finger of user's hand 20 then is placed through second grip part 16 through second shank 14 and second blades 12; Wherein, the design of passing first grip part 15 owing to user's hand 20 thumbs 21 is bad, causes this scissors 10 to use the problem that goes up shakiness and influence shearing quality and security.

Because the thumb of this user's hand 20 21 structures are to be stretched with 211 places, thumb base portion joint of hand 20 base portions 210 by thumb 21 to be provided with a first segment bone 212, then are provided with one first joint 213 and second at the other end of this first segment bone 212 and save bone 214 and be connected; And the finger tip of this thumb 21 is when passing first grip part 15, and this first grip part 15 is nested with on the second joint bone 214 that is positioned thumb 21, so; When the user operated this scissors 20, general user can be the center with the base portion joint 211 of this thumb 21 all, and folding thumb 21 and four refers to; When scissors 10 is begun to open by two

blades

11,12 one-tenth closed states, thumb 21 and four refers to by immediate state gradually away from, and general user's hand 20 custom of moving; Be that the wrist maintenance is motionless; And refer to two

grip parts

15,16 of scissors 10 are done the action of folding with thumb 21 and four, and wherein, the action of thumb 21; Promptly as shown in Figure 2; It is moving partially to be that base portion joint 211 with this thumb 21 is that the center is done, and promptly the first segment bone 212 when this thumb 21 is that the angle that the center is rocked to and the origin-location of squinting differs is an offset angle with this base portion joint 211, cause this scissors 10 by originally vertical position deviation angle for swinging poor β; And interlock second joint bone 214 is that the angle of center off normal displacement is off normal difference σ with first joint 213; And the overall offset amount that makes this scissors 10 is the sum total that swings poor β and off normal difference σ, make two

blades

11,12 cut across cut the compound article otch very easily because of displacement improperly, the instability when causing scissors 10 displacements; The not only quality of wayward otch like this; The disappearance of skew about two

blades

11,12 are, and another hand that easy fitted is held cloth or compress or held thing in these two blades, 11,12 the place aheads causes unnecessary damages and safety issue.

Other has known structure as shown in Figure 3, wherein, and this

grip part

15,16 be designed to comparatively to fit form of palm; Wherein, The grip part 15 that supplies thumb 21 to pass is set as an end opening, and big end opening is less in addition so that this grip part 15 when being placed in this thumb 21 general scissors fit, precisely because the position of grip part 15 is still on the second joint bone 214; And this grip part 15 was placed in for second joint 214 last times of bone, promptly had moving partially disappearance the as shown in Figure 2.

And aforementioned various types of scissors 10 is because grip part 15 is placed in the position of thumb 21 on the second joint bone 214; Moving partially unsettled phenomenon is very easily arranged in the process of cutting scissors 10 of dying; And so structure since this

grip part

15,16 and shank 13,14 and

blade

11,12 all at grade, so after these scissors 10 placements on the table, when the user will take once again; It is real difficult that its finger and thumb will pass scissors 10

grip parts

15,16 that keep flat on the table; Must take after this scissors 10 leaves desktop with another hand, another hand can pass the

grip part

15,16 of this scissors 10, causes the inconvenient person who takes.

Summary of the invention

The technical problem that the present invention will solve provides a kind of scissors handgrip, and it can improve the quality of security, controllability and the shearing of scissors.

For solving the problems of the technologies described above, scissors handgrip of the present invention comprises:

Two blades;

Two shanks, fixing two blades of an end and pivot joint each other;

Be respectively equipped with the grip part that supplies user's hand thumb and four fingerstall to wear on this two shank, this thumb is stretched by the thumb base portion joint of hand root and is provided with a first segment bone, is provided with one first joint and second at the other end of this first segment bone and saves bone and be connected;

The grip part that supplies thumb to cover has a throwing part in centre, and this grip part is set on the first segment bone of thumb, and first joint of this thumb is provided with one and lets portion, first joint of this thumb be positioned to pass this throwing part and the scope beyond the portion of letting relatively.

Scissors handgrip of the present invention; Because first grip part is placed in thumb base portion first segment bone place fully and near position, the centre of the palm, therefore, shearing manipulation is more stable; Arbitrarily skew or swing can not take place, thereby have improved the quality of security, controllability and the shearing of scissors; Simultaneously, be close to the design of portion, make the first terminal grip part of scissors shank be the form of deflection, thereby improved the convenience that the user took and placed scissors.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation:

Fig. 1 is the structural representation of the cooperation of existing scissors;

Fig. 2 is that existing scissors cooperates the hand thumb to look closely perspective action sketch map;

Fig. 3 is that the scissors of another existing form cooperates the hand schematic perspective view;

Fig. 4 is a stereoscopic sketch map of the present invention;

Fig. 5 is the present invention person of being used hand and hand perspective schematic perspective view;

Fig. 6 is that the present invention person of being used hand and hand perspective end apparent motion are made floor map;

Fig. 7 is that the present invention cooperates hand perspective side view plane action sketch map;

Fig. 8 is that the present invention places the action sketch map of taking on the desktop.

Description of reference numerals is following among the figure:

11,12: 12: the second blades of 11: the first blades of blade

13,14: 14: the second shanks of 13: the first shanks of shank

15,16: 16: the second grip parts, 15: the first grip parts, grip part

20: hand 21: thumb 210: base portion

211: thumb base portion joint 212: 213: the first joints of first segment bone

214: the second joint bones 30,40: 30: the first blades of blade

Blade 31,41 in 40: the second: 31: the first shanks of shank

Shank 32,42 in 41: the second: 32: the first grip parts, grip part

The grip part 310 in 42: the second: be close to portion 320: throwing part

321: penetrate portion 322: pass portion 323: let portion

50: desktop α: deviation angle β: it is poor to swing

σ: off normal difference A: horizontal direction B: plane

C1: four refer to drive first height of second grip part

C2: four refer to drive second height of second grip part

C3: four refer to drive the 3rd height of second grip part

The specific embodiment

Understand for technology contents of the present invention, characteristics and effect being had more specifically, combine illustrated embodiment at present, details are as follows:

Please cooperate shown in Figure 4; This scissors is most of identical with existing structure, promptly have all right one way or the other closed relatively or open two

blades

30,40, and the other end of two

blades

30,40 respectively is provided with a

shank

31,41; This two

shank

31,41 articulates each other; And the end at two

shanks

31,41 respectively is provided with a

grip part

32,42, wherein, and thumb 21 base portions of these first grip part, 32 person's of being used hands 20 and designing.

When these shank 31 ends extend to first grip part 32; Be to bend and extend into one to the place, the centre of the palm of user's hand 20 to be close to portion 310; Make the position that is close to the user centre of the palm that first grip part 32 can be certain; Place for the thumb 21 of user's hand 20 and these first grip part, 32 middle positions have the throwing part 320 that runs through, make first grip part 32 and throwing part 320 can be close to the person of base portion place of thumb 21.

The throwing part 320 of this first grip part 32 is a long arc shape perforation structure, and wherein, a side of throwing part 320 becomes the portion that penetrates 321 of flaring opening form; And the opposite side of throwing part 320 becomes the portion that passes 322 of tapered openings form; The tip that makes thumb 21 penetrates in the throwing part 320 and by the portion of passing 322 and passes by penetrating portion 321, and is as shown in Figure 4, and first grip part 32 lets portion 323 with respect to what 213 places, first joint of thumb 21 were provided with a concave arc form; First joint 213 of thumb 21 is positioned to be passed throwing part 320 and is letting portion 323 scope in addition; When even the throwing part 320 of this first grip part 32 is enclosed within the base portion 210 of thumb 21, first grip part 32 is located on the first segment bone 212 of thumb 21, and lets portion 323 let the maximum end of first segment bone 212 action; I.e. 213 places, first joint; Make first grip part 32 be placed in 210 of first joint 213 to the base portions, because the base portion 210 of thumb 21 almost remains under the motionless state in the course of action of shearing; Promptly when the whole scissors person of being used operates, remain under the stable status.

Please cooperate shown in Figure 5; Because the bottom of this first grip part 32 is near the position, the centre of the palm of user's hand 20; And the top of this first grip part 32 is provided with and lets portion 323 supply the first maximum joint 213 of first segment bone 212 activities to pass the throwing part 320 of first grip part 32; Make first grip part 32 be placed in the base portion of thumb 21 really, when user's hand 20 when horizontal direction A advances, as shown in Figure 7; First grip part 32 is when shearing operation; The first segment bone 212 and first grip part 32 remain on the height of horizontal direction A and move, and first blade, 30 tips that first grip part, the 32 first terminal shanks 31 connect are against the plane B work of advancing, and can guarantee that so these first grip part, 32 relevant structures keep moving horizontally and unnecessary skew or the swing of unlikely generation; And 30 of this first blades remain on best vertical direction state; Other of user's hand 20 four refers to then to cooperate 42 actions of second grip part, make second grip part 42 can produce relatively as shown in the figure four refer to drive second grip part the first height C1, the four second height C2 and four that refers to drive second grip part refer to drive the 3rd height C3 of second grip part, even second shank 41 and second blade 40 and first blade, 30 generation opening and closing movements; So that second blade 40 cooperates first blade 30 to produce the action of shearing; So as shown in Figure 5, two

blades

30,40 all can be sheared operation under vertical state, very stable.

So, squint through aforesaid first grip part, 32 alterations of form and with thumb 21 cooperation positions, make first grip part 32 when scissors is operated, the displacement of off normal and swing is restricted to minimum degree, can reach following function, comprising:

1, stability is high: this first grip part 32 is placed in base portion first segment bone 212 places of thumb 21 and completely near the position in the centre of the palm; As long as it is stable that user's hand 20 keeps, first blade 30 of these first grip part, 32 interlocks can be in stable status down cut operation.

2, shear direction is controlled good safe: because whole scissors is subject to the factor that first grip part 32 is placed in thumb 21 base portions; Stability during scissor cut is high; Unlikely random skew; Promptly by effectively control, unlikely thorn reaches or cuts and injure the hand of holding the another hand of being cut thing two blades, 30,40 tip directions, thus the security that can improve scissors.

3, shearing quality can improve really: because aforementioned first grip part 32 is high with hand 20 relative stabilities and controlled property; And the possibility of issuable off normal and swing reduced during operation was advanced; When two

blades

30,40 are sheared; Plumbness that remains on the best that can be certain, thus can reach best shearing quality.

4, conveniently take and place scissors 10: because the portion of being close to 310 designs of the tight nearly palm of bending are arranged on these scissors 10 shanks 31, make the shank 31 first terminal grip parts 32 be the form of a deflection, therefore when scissors 10 horizontal in 50 last times of desktop; First grip part 32 remains on the form of leaving desktop 50; As shown in Figure 8, thus can make things convenient for user's finger to place, directly take; It is auxiliary to need not another hand, so very easy to use.

Claims

1. a scissors handgrip is characterized in that, comprises:

Two blades;

Two shanks, fixing two blades of an end and pivot joint each other;

2. scissors handgrip as claimed in claim 1; It is characterized in that: said scissors has all right one way or the other closed relatively or open blade; The other end of this two blade respectively is provided with a shank; This two shank articulates each other and respectively is provided with a grip part at the end of this two shank, and wherein, the thumb base portion of this first grip part person's of being used hand designs.

3. scissors handgrip as claimed in claim 2 is characterized in that: said shank end is to this first grip part extension and have one to the portion of being close to that place, the centre of the palm bending of user's hand is extended, and this first grip part is close to the position in user's hand centre of the palm.

4. scissors handgrip as claimed in claim 2; It is characterized in that: the throwing part of said first grip part is a long arc shape perforation structure; This first grip part is provided with the portion that lets of a concave arc form with respect to first joint of thumb, and the throwing part of first grip part is placed in the base portion of thumb, and first grip part is located on the first segment bone of thumb; And the maximum end of the first segment bone that let portion action, i.e. first joint.