CN2392365Y

CN2392365Y - Structure-improved horticulture shears of step shearing

Info

Publication number: CN2392365Y
Application number: CN 99253479
Authority: CN
Inventors: 黄绣足
Original assignee: SHANGRMENG ENTERPRISE CO Ltd
Current assignee: SHANGRMENG ENTERPRISE CO Ltd
Priority date: 1999-11-08
Filing date: 1999-11-08
Publication date: 2000-08-23
Anticipated expiration: 2009-11-08

Abstract

The utility model relates to structure-improved horticulture shears of step shearing, which comprises a fixed jaw clamp and a movable jaw clamp which are mutually in pin joint. A rocking arm is in pin joint with the lower part of the middle of the fixed jaw clamp; a sliding slotted hole is opened at the bottom of the movable jaw clamp, the outside of which is provided with a plurality of ratchet slots. One end of a connecting rod is in pin joint with the middle section of the rocking arm, and the other end is in mesh with the ratchet slots of the movable jaw clamp by an actuating bolt; a movably arbor is movably arranged in the sliding slotted hole. A spring is a torsion spring, both ends of which are respectively against both ends of the connecting rod.

Description

Structure improved nibbling shear orchard shears

The utility model is relevant with the structural improvement of Shears for gardening, is meant a kind of structure improved nibbling shear orchard shears especially.

Press, the kind of Shears for gardening is a lot, open the more visible improvement design that its each bilge construction is arranged on the patent gazette, wherein relevant orchard shears is for the pruning of more thick and stiff limb, normal shearing resistance effect because of application of force deficiency and thick and stiff limb, and produce and can't cut off branch in same sheared edge, and when shearing, must loose one's grip again open that scissors pushes away forward and aim at the scarce fraud of former sheared edge more again, person who is ambitious or tenacious of purpose's bodyguard satisfies that research and development have can nibbling shear, the Shears for gardening of the laborsaving effect of tool, as No. 77210550 " having the nibbling shear labor-saving gardening " novel patent case with cutting, it is a fixed jaw and the movable jaw with mutual pivot joint, and be provided with a chute with the bottom of this activity jaw, one side of this chute is established and is the semi arch ditch, one end of one connecting rod is articulated in this chute with an axle, end then articulates with a rocking arm in addition, and the end in addition of this rocking arm then articulates with this fixed jaw; When carrying out shear actuation, be to utilize the axle of this connecting rod bottom in this chute, to be shifted, to adjust the point of application of this two jaw, utilize this axle to be embedded in the semi arch ditch position in the chute simultaneously, to locate the open angle of this two jaw, and opened the lever that is articulated on this fixed jaw and the rocking arm once more carrying out the action that the application of force is sheared, and reach the segmentation application of force, labour-saving purpose; Only, when these are configured in the practical operation use, the slippage in this chute on the one hand of the axle of this connecting rod, must engage with the semi arch ditch in the chute again on the other hand, and make axle when displacement, also produce incorrect snap action, and influence the keying of this two jaw, or do not cause this axle easily in this semi arch ditch escape really in the action of engaging, the effect that not only influences nibbling shear more can shorten the service life of orchard shears because of the wearing and tearing ahead of time of axle and chute.

Be with, main purpose of the present utility model is to provide a kind of structure improved nibbling shear orchard shears, it can make the activity axle of connecting rod smooth and easy in the chute hole internal shift of this activity jaw, this do untie-sell then engage with this ratchet slot the location action certain.

A time purpose of the present utility model then is to provide a kind of structure improved nibbling shear orchard shears, does must add an axle sleeve in the untie-sell in this, increasing the contact area of itself and ratchet slot, and can prolong the service life of orchard shears.

Edge is taken off purpose with on reaching, a kind of structure improved nibbling shear orchard shears provided by the utility model, and it includes:

One fixed jaw, its upper end has a shear surface, and its hypomere shank then can socket-connect with a holding rod;

One movable jaw, be with position, intermediate portion axle pivot in the middle part of this fixed jaw, its epimere has a blade part, the lower end forms an arm, has a chute hole in this arm bottom;

One rocking arm is articulated in the book office of this fixed jaw middle part with its top, and its bottom then socket-connects with another holding rod;

One connecting rod, an end are articulated in the middle appropriate position of this rocking arm, and end then is hubbed at the chute hole of this arm by an activity axle in addition;

One spring is to be a torque spring, and is held in the pivot part of two ends on this connecting rod respectively with its two end;

It is characterized in that:

An arm of this activity jaw is provided with the ratchet slot of plural number with respect to the outside of this chute hole; This connecting rod then is pivoted in a side of this activity axle and one does untie-sell, and doing untie-sell with this must be meshed with this ratchet slot; Drive this does untie-sell and can engage with this ratchet slot relatively by this activity axle can move in this chute hole, and when this fixed jaw and this activity jaw are the shear actuation that opens or fold, making displacement is to adopt to separate to carry out with the action that engages, and can be more certain, smooth and easy and prolong person in its service life.

Wherein this connecting rod is the upper and lower both sides that are divided into this rocking arm and this activity jaw by two microscler thin slices with reservation shape; again by this pivot pin and the wearing pivot of this activity axle and organize and establish formation; wherein a microscler thin slice more down extends in the upper end and establishes a Gai Yuan; provide protection to be located at its this interior spring; can not be subjected to branches and leaves to collude card, and the function person that the action of shearing can be carried out smoothly.

Wherein this makes untie-sell pivot group when this ratchet slot, get and wear an axle sleeve earlier, make this do untie-sell in this ratchet slot during inlay card, the contact area that increases with ratchet slot is provided with this axle sleeve, make the location more firm, in a single day and when wearing and tearing being arranged, also need only change this axle sleeve, to prolong the person in service life that this does untie-sell.

Relevant detailed construction of the present utility model, function and characteristics can be cooperated graphic detailed description and are able to abundant understanding by the following example, wherein:

Fig. 1 is the exploded perspective view of the utility model one preferred embodiment.

Fig. 2 is the combined planar schematic diagram of Fig. 1.

Fig. 3 is the planar gesture schematic diagram that Fig. 2 two jaws when desire is sheared open maximum angle.

Fig. 4 is the action schematic diagram of Fig. 2 when carrying out nibbling shear.

At first see also Fig. 1, shown in Figure 2, the structure improved nibbling shear orchard shears of the utility model is to comprise a fixed jaw 20, one corresponding movable jaw 30, a Rocker arm 40, a connecting rod 50 and a spring 60 substantially, wherein:

The upper end of this fixed jaw 20 has a shear surface 21, and its stage casing is respectively equipped with one first Pivot 23 and one second Pivot 25, and the then more past bottom of its hypomere is extended and socket-connected with a holding rod 71.

This activity jaw 30, its upper end has a blade part 31, the lower end then forms an arm 33, the chute hole 35 that this arm 33 is provided with is one microscler, run through, outer side edges in this chute hole 35 is provided with most the ratchet slots 37 that are semi arch chase shape, this ratchet slot 37 is the same sides that are positioned at this activity jaw 30 with this blade part 31, and should activity jaw 30 be with its position, stage casing axle pivot on first Pivot 23 of this fixed jaw 20, and be fulcrum and can and shearing with respect to shear surface 21 swings of this fixed jaw 20 with this first Pivot 23.

This Rocker arm 40 is second Pivot 25 that is articulated in this fixed jaw 20 with its top, and its bottom then can socket-connect with another holding rod 72.

One connecting rod 50 is to be mounted on this Rocker arm 40 and upper and lower both sides that should activity jaw 30 respectively by two corresponding microscler

thin slices

51,52, and be articulated in the position of this Rocker arm 40 near the upper end with one end mat one pivot pin 53, its other end is then worn the chute hole 35 of pivot by this activity jaw 30 with an activity axle 55, and can slippage in this chute hole 35, in a side of this activity axle 55, with respect to ratchet slot 37 positions of 20 arms 33 of this activity jaw, wear pivot in addition and do untie-sell 57, this does untie-sell 57 is engageable snapping in this ratchet slot 37; In addition, this is done untie-sell 57 and wears a last axle sleeve 59 earlier in wearing to get when organizing in this ratchet slot 37, make this do untie-sell 57 in this ratchet slot 37 during inlay card, the contact area that increases itself and ratchet slot 37 is provided with this axle sleeve 59, and it is more firm in when location to make this do untie-sell 57, please cooperate consult shown in Figure 3, and in case when wearing and tearing are arranged, also need only change this axle sleeve 59 and can not influence and do untie-sell 57, therefore can prolong the service life that this does untie-sell 57; More downward extension is provided with a lid edge 54 of tool predetermined altitude and a wherein microscler thin slice 51 of this connecting rod 50 is in the upper end, and its function repeats after holding.

This spring 60 is to be a torque spring; establish with the one end and to be vertical configuration 61; and a hole 41 that can directly be inserted on this Rocker arm 40 is located; its other end then is down to extend to elongate and be held on this connecting rod 50 this and do untie-sell 57; provide the reverse resist force of this Rocker arm 40 with this spring 60 with these activity jaw 30 relative starts; and because lid edge 54 structures that a microscler thin slice 51 of this connecting rod 50 is had; provided this spring 60 of protection can not be subjected to the influence of colluding card or extruding of branches and leaves, and the function that the action of shearing can be carried out smoothly.

Detailed step during its use of orchard shears of the present utility model and the effect after the use are to be the known techniques structure, do not describe in detail in this appearance; Only the change narration with the utility model orchard shears is described as follows:

As shown in Figure 3 and Figure 4, the activity axle 55 that is had by this connecting rod 50 and this are done untie-sell 57, in this two

jaw

20,30 are subjected to this two

holding rod

71,72 outwards pull open and when opening, this connecting rod 50 is to be fulcrum with this pivot pin 53, this activity axle 55 of impelling its other end slides onto its (as shown in Figure 3) bottom by the top (position as shown in Figure 2) of chute hole 35, this moment this two

jaw

20,30 open maximum, therefore can aim at thicker limb, and this makes untie-sell 57 will break away from ratchet slot 37 engagements of original and this activity jaw 30 admittedly along with the swing of this connecting rod 50 state, make and draw back two

holding rods

71,72 the action and the application of force first are more or less freely, and ought be relatively inside this two holding rod 71 of grip pressure, 72 application of forces make this two

jaw

20,30 shear when entering branch, because this two jaw 20, the swing of this connecting rod 50 of 30 interlocks, make this do untie-sell 57 and can snap into this ratchet slot 37 wherein in the roller seating space, and locate this two

jaw

20,30 open angles (that is its shearing enters the state of branch), can open this two holding rod 71 more subsequently, 72 to maximum, this moment, this Rocker arm 40 was that the pivot pin 53 with this connecting rod 50 is a fulcrum, its activity axle 55 then moves in this chute hole 35 but does not influence this and does untie-sell 57 and be positioned state in this ratchet slot 37, (shown in Fig. 4 dotted line), make things convenient for user's application of force once more, make this two

jaw

20,30 can further shear again, and then reach nibbling shear, the labour-saving purpose, and characteristics of the present utility model promptly are: will provide to increase this two holding rod 71, the activity axle 55 of 72 open angles, with provide the location this two jaw 20, the untie-sell of doing of 30 open configuration effects was arranged in 57 minutes, one, the stressed effect of sharing can be provided, two then admittedly this activity axle 55 and the different functions of doing untie-sell 57 design the chute hole 35 of different structures and ratchet slot 37 with cooperate, the action of screens and slippage is separated to be carried out, and can make the connecting rod 50 can be more smooth and easy in the action in when displacement, action when engaging then can be more certain, can not be provided with the semi arch ditch as commonly using because of chute has concurrently, when mobile, easily produce the phenomenon of interfering and influence accuracy of action, and the scarce fraud that orchard shears is damaged ahead of time because of axle wearing and tearing, orchard shears of the present utility model can prolong this activity axle 55 and this does the service life of untie-sell 57, and, the ratchet slot 37 of this activity jaw 30 is located at outside this chute hole 35, and in a side of this arm 33, must avoid adding man-hour in heat-treating, the stress concentration phenomenon that is produced because of the rising-heat contracting-cold effect, an arm 33 of this activity jaw 30 can not damaged ahead of time, is to be another advantage of the present utility model.

To sum up institute is old, the structure of the utility model improvement nibbling shear orchard shears is by the Aided Design of the activity axle of this connecting rod, the chute hole of doing untie-sell and movable jaw support arm portion and ratchet slot etc., commonly use the constructional disappearance of tool nibbling shear province's cutter Shears for gardening and can effectively solve, effect after its improvement is to be worth sure, suffice to show that thus the utility model is the design of a tool progress effect and practicality, for ensureing the rights and interests of creator's pains development and Design, the whence proposes novel patent application in accordance with the law.

Claims

1. structure improved nibbling shear orchard shears, it includes:

One spring is to be a torque spring, and is held in the pivot part of these connecting rod two ends respectively with its two end;

It is characterized in that:

An arm of this activity jaw is with respect to the outer sorrowful ratchet slot that is provided with plural number of this chute hole; This connecting rod then is pivoted in a side of this activity axle and one does untie-sell, and doing untie-sell with this must be meshed with this ratchet slot.

2. a kind of structure improved nibbling shear orchard shears according to claim 1, it is characterized in that, wherein this connecting rod is the upper and lower both sides that are divided into this rocking arm and this activity jaw by two microscler thin slices with reservation shape, again by this pivot pin and the wearing pivot of this activity axle and organize and establish formation, wherein a microscler thin slice more down extends in the upper end and establishes a Gai Yuan.

3. a kind of structure improved nibbling shear orchard shears according to claim 1 is characterized in that wherein this makes untie-sell pivot group when this ratchet slot, gets to wear an axle sleeve earlier.