CN2205102Y - Positioning device for gardening scissors - Google Patents

Abstract

The utility model relates to a positioning device for gardening scissors. A notch is concavely arranged at the back of one cutting edge piece in two cutting edge pieces of the knife and scissors which are cross assembled, and then the anterior part of the handle for vice of the other cutting edge piece pivots a fastening piece, the front end of the fastening piece is provided with a lock latch part which is bent and folded downwards, both sides of the middle section is arranged in the extending downwards way with convex ears, the convex ears are provided with circular holes, the rear end of the fastening piece is provided with a push part in shape of concave arc, the fastening piece shaft is pivoted at the handle for vice by the shaft rod and can be swung. The lock latch part of the fastening piece is embedded into the notch to position at close position of the knife and scissors, when grasping the knife and scissors and buckling the push part, the lock latch part is reelingly swung outward away from the notch, the knife and scissors can carry out the shearing action.

Description

Positioning device for gardening scissors

The utility model relates to a kind of orchard shears, and referring to especially a kind ofly can provide the positioner that the location of blade sheet is had the orchard shears of more definite effect.

The orchard shears of commonly using as shown in Figure 1, with a catch 1 bolt-lock on the handle 201 of upper knife edge 2, and be provided with a breach 301 in the relevant position place of following blade 3 tail ends, when folding, embed breach 301 by catch 1, to support down that blade 3 can not open and the safety of guaranteeing to receive and keep, see shown in Figure 2, yet these fixing buckle structures of arresting, be fixed on the handle 201 because of catch 1 is made of metal with bolt locking pivot, make its deflection arbitrarily, so when pulling, must bestow the thrust that is enough to promote catch 1, it is difficult quite painstakingly to operate when therefore using in the early stage, and must cooperate by both hands in when operation, in the break period of carrying out shear action, in the time of doing action that of short duration folding cutter cuts, on hand the action of must stopping engages knife edge cuts, and more trouble inconvenience on the contrary seems; Moreover, bolt can reduce gradually to the coupling mechanism force of catch 1 after using a period of time, the strength of keeping out of relative catch 1 reduces, and causes the following effect of supporting of blade 3 is had a greatly reduced quality, and can't effectively control the collapse state of blade, and when the bolt location generation of locking catch 1 is loosening, 1 one-tenth free deflection state of catch causes easily the phenomenon of false touch to take place in the pruning process, cause blade cut close block suddenly in the action motionless, the application of force is used and is had some setbacks, and has a strong impact on its function of use.

In view of this, main purpose of the present utility model is to provide a kind of positioner of orchard shears, and its structure is simplified, located really, and meets the design of ergonomics, makes operation smooth and easy.For achieving the above object, the positioner of the orchard shears that the utility model provides, it mainly becomes the knife back place of the blade sheet in the two blade sheets that cutter cuts to be arranged with a breach in intersecting winding, the handle of a knife front end position of another blade sheet cramp that then is pivoted, wherein the front end setting of this cramp is the hook portion of downward bending, both sides, stage casing then extension downwards are provided with lug, has circular hole on the lug, with an axostylus axostyle with this cramp axle pivot on this handle of a knife and do swing, and the rear end of cramp is provided with the press section be concave arc shape, and then corresponding on this handle of a knife have a concave-arc part; Embed in the breach in the hook portion of closure state that cutter is cut cramp in season and to locate, and can be hold by one hand cutter and cut and withhold its press section, can make the hook portion of cramp outwards be swung away from breach on the blade sheet, the action that cutter is sheared.

Reduced width is to its hook portion gradually by the set protruding pinna in its stage casing for this cramp, and the width of this hook portion just equals the thickness of this blade sheet for best.

For further understanding structure of the present utility model, feature and purpose thereof, existing conjunction with figs. describes in detail as the back:

Fig. 1: for the orchard shears commonly used in the three-dimensional appearance schematic diagram of open configuration.

Fig. 2: for the orchard shears commonly used in the three-dimensional appearance schematic diagram of collapse state.

Fig. 3: be three-dimensional appearance schematic diagram of the present utility model.

Fig. 4 A, 4B, 4C: be operational motion schematic diagram of the present utility model.

See also the positioner of the utility model orchard shears shown in Figure 3, a cutter is cut 10 and is the winding of intersecting axle pivot with two blade sheets 11,12 and forms, and the blade position of its front end can be for the usefulness of people's topiary, and the shank 13,14 that the rear end articulates then grips the application of force for staff; This positioner is that the knife back position appropriate location in wherein a blade sheet 12 is concaved with a breach 121, and shank 14 front ends of another blade sheet 11 then are provided with a concave-arc part 141, for a cramp 15 is set;

The hook portion 151 that the front end setting of this cramp 15 is reduced width, also bends downwards, the width of this hook portion 151 is matched with the thickness and corresponding the embedding in its breach 121 of blade sheet 12, and in the both sides, position, stage casing of cramp 15, then extend downwards respectively and be provided with lug 152, on it and be provided with circular hole 153, for an axostylus axostyle 154 pass lug 152 circular hole 153 and with 15 pivots of cramp on shank 14, and make it be able to swing, then concave-arc part 141 that should shank 14 is provided with the press section 155 that is concave arc shape in the rear end of cramp 15 again;

By above-mentioned structure, see also shown in Fig. 4 A, cut 10 two shanks 13 to hold tight cutter, 14, make its two blades sheet 11,12 are closure brings state together, the breach 121 of the knife back side of this blade sheet 12 just can reveal at this moment, with cutting a hand finger wherein of 10 and pull this cramp 15 and can make its hook portion 151 inwardly and be embedded in the breach 121 of blade sheet 12 knife back sides to grip cutter, even two blade sheets 11,12 must not outwards open, fix two blade sheets 11,12 are the situation of closing, can't carry out shear action, and when not using or in break period that shear action is carried out, can guarantee two blade sheets 11,12 can not open suddenly, do not have the danger of accidentally injuring the people, and it pulls the action of location, need only be with one-handed performance, simply easily;

See also shown in Fig. 4 B, using cutter to cut 10 when user's desire cuts when cutting action, need only the press section 155 of withholding this cramp 15 with finger, make its concave-arc part that fits in handle of a knife 14 141, the hook portion outside swing of 151 meetings of cramp 15 other ends at this moment breaks away from the breach 121 of blade sheet 12, make two blade sheets 11,12 are free state, can grip the action that the relative application of force of handle of a knife is sheared by staff, shown in Fig. 4 C, when desire uses cutter to cut, as long as cut a wherein finger of 10 same proficiency to grip cutter, withhold the press section 155 of its cramp 15, can unclamp the restraining force of the hook portion 151 of former cramp 15, simple to operate easy, and when after the break period of shear action, desiring to proceed to shear, to meet the design of ergonomics, needn't operate by an other hand again, can remove 15 pairs of blade sheets 11 of cramp at once, 12 restriction, move more smooth and easy saving trouble, and carrying out cutter when cutting 10 shear action, outside the breach 121 of blade sheet 12 can not be revealed in, because of having the motionless phenomenon of blade engaging suddenly, the false touch control knob do not take place so do not have the product of commonly using;

In sum, the utility model has thoroughly solved the aforementioned product of commonly using and attained the perfect disappearance that produces in the end in the structure design, and reach aforementioned intended purposes of the present utility model, simple element, manufacturing assembling are easily, can reduce manufacturing cost, and mode of operation more meets the ergonomics principle, except promoting industrial utilization, also promoting practical effect, is a rare and excellent creation in fact.

Claims (2)

1, a kind of positioner of orchard shears, it is characterized in that: become the knife back place of the blade sheet in the two blade sheets that cutter cuts to be arranged with a breach in intersecting winding, the handle of a knife front end position of another blade sheet cramp that then is pivoted, wherein the front end setting of this cramp is the hook portion of downward bending, both sides, stage casing then extension downwards are provided with lug, has circular hole on the lug, with an axostylus axostyle with this cramp axle pivot on this handle of a knife and do swing, and the rear end of cramp is provided with the press section be concave arc shape, and then corresponding on this handle of a knife have a concave-arc part.

2, according to the positioner of the described orchard shears of claim 1, it is characterized in that: reduced width is to its hook portion gradually by the set protruding pinna in its stage casing for this cramp, and the width of this hook portion just equals the thickness of this blade sheet for best.

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