JPH07312977A - Cutter for cutting nursery stock - Google Patents

Abstract

PURPOSE:To provide a cutter giving uniform cut surface angle and constantly and stably forming a beautiful cut surface in the cutting of a nursery stock for grafting by slantly attaching a cutter blade and cutting the nursery stock by sliding the blade in longitudinal direction. CONSTITUTION:The base 1 of the cutter has a longitudinally extended groove. A groove 1C for a stopper and a cutter-sliding groove 1D connected to the stopper groove are formed at the lower part of the base 1 and extended forward to the tip end of the base. The lower part of the base 1 is protruded forward to form a nursery stock fixing part 1B. A sliding member 3 is slidably placed in the groove 1A of the base 1 and on the nursery stock fixing part 1B. A slit 3C is formed in front of the sliding member 3 and a cutter blade 4 is slantly fixed in the slit 3C directing the edge downward. A nursery stock placed on the nursery stock fixing part 1B is cut by sliding the cutter blade 4 in the cutter sliding groove 1D. A stopper 2 is fixed to the sliding member 3 in a state extending from the upper face to the lower face and the lower end of the stopper is made to be engageable at both ends of the stopper groove 1C of the base 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter device for cutting seedlings used for producing grafted seedlings.

[0002]

2. Description of the Related Art Conventionally, as seedlings for fruits and vegetables such as tomatoes, eggplants and melons, in order to have resistance to diseases and insects, a rootstock resistant to these diseases and insects has been selected and grafted on the roots. ing. By the way, shaving blades have been used to cut saplings and rootstocks for grafting saplings.However, even if a skilled worker uses a razor blade to prevent damage to the saplings, It is difficult to cut into a certain shape, it is inefficient, productivity is poor, and economic efficiency is not good. For this reason, various cutter devices for accurately cutting grafting seedlings at a constant angle have been studied. That is, the cutter device can solve the problems that have been conventionally done manually. Examples of this cutter device include JP-A-63-226219 and JP-A-6-226219.
It is known that a small sapling is accurately cut at a certain angle by forming a stapler type or scissors type like 0-9421. When this device is used, its effect is large as compared with manual work, and it is efficient and highly productive.

[Problems to be Solved by the Invention]

However, in the above-mentioned shape, since the seedling is applied to the cutting edge at a constant angle and the seedling is cut by the gripping force of the hand, it is difficult to obtain a cut surface having an accurate angle, and the table is The cut surface between the tree and the scion is not constant, and the problem that the scion is not rooted is extremely likely to occur. Further, it is difficult to always obtain a cut surface having a good surface condition with the mere hand force, and sometimes it becomes rough, and it becomes difficult to form a smooth surface.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a seedling cutting cutter for obtaining a cutting surface of a grafting plant which always has an accurate cutting plane at a constant angle and always has a good surface condition. A device is provided.

That is, in the cutter device of the present invention, a sliding member holding and fixing a cutter blade is provided slidably in the longitudinal direction of the pedestal, and the sapling is appropriately tilted with respect to the sliding direction of the sliding member on the pedestal. The seedling fixing portion to be placed is provided on the sliding line of the cutter blade.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A cutter device of the present invention will be described with reference to FIGS. 1, 2, 3 and 4. Note that the right side of FIG. 1 will be described as the rear and the left side will be described as the front. The pedestal 1 is formed by providing a groove 1A extending in the longitudinal direction, and the lower part of the pedestal 1 is projected forward to form a seedling fixing portion 1B. A stopper groove 1C having a constant length is provided in the lower portion of the concave groove 1A toward the longitudinal direction of the pedestal 1, and a cutter sliding groove that is continuous with the stopper groove 1C and is smaller than the width of the stopper groove 1C. 1D is provided up to the front end of the pedestal 1, and the seedling fixing portion 1B is formed by a groove that intersects the cutter sliding groove 1D at an appropriate angle. A through hole 1F for a screw is formed in the bank 1E of the recessed groove 1A of the base 1. The stopper 2 having a spherical grip portion formed on the upper portion is formed by a male screw. A female screw 3A for a stopper is formed on the sliding member 3 from the upper surface to the lower surface thereof, and the stopper 2 is screwed to the female screw 3A for the stopper.
The lower end of the stopper 2 appropriately protrudes from the lower surface of the sliding member 3. Further, on the side surface of the sliding member 3, the bank 1 of the pedestal 1
A fixing female screw 3B is provided so as to correspond to the through hole 1F provided in E. A longitudinal slit 3C is provided in front of the sliding member 3, and a female screw is provided on the front side surface of the sliding member 3. The cutter blade 4 is inserted into the slit 3C with the cutting edge downward, and the male screw 5 is inserted through the female screw on the side surface of the sliding member 3 and the fixing hole 4A of the cutter blade 4 to tighten the slit 3C. Fix the blade 4. At this time, the cutting edge of the cutter blade 4 is configured to be inclined obliquely toward the lower right side. Although not shown here, the stopper 2 may be formed integrally with the sliding member 3.

The sliding member 3 is placed so as to slide in the concave groove 1A of the pedestal 1 and on the seedling fixing portion 1B in the longitudinal direction, and the stopper 2 fixed to the sliding member 3 is attached to the pedestal 1.
It is configured so that it can be locked at both ends of the stopper groove 1C provided on the. At this time, the cutter slide groove 1 of the pedestal 1
Into D, the cutting edge of the cutter blade 4 obliquely fixed in front of the sliding member 3 is inserted. The movement range of the cutter blade 4 is defined by the stopper 2. When this cutter device is not used, as shown in FIG.
The sliding member 3 is fixed to the pedestal 1 by inserting a screw 6 into the through hole 1F provided in the slide member 3 and inserting and fixing the tip of the screw 6 into the fixing female screw 3B provided on the side surface of the sliding member 3.

The operation of this embodiment will be described. First, from the state shown in FIG. 4, the screw 6 for fixing the pedestal 1 and the sliding member 3 is removed, and as shown in FIG. 5, the seedling 7 is placed in the groove of the seedling fixing portion 1B. The slide member 3 having the cutter blades 4 attached obliquely is slid from the rear to the front to slide the pedestal 1
The cutter blade 4 passing through the cutter sliding groove 1D of is the seedling 7
After diagonally cutting, the stopper 2 is locked at the front end of the stopper groove 1C and the sliding member 3 stops. next,
The sliding member 3 is moved backward from the front side until the stopper 2 is retracted until it is locked at the rear end of the stopper groove 1C, the cut seedling 7 is removed, and the next seedling is placed on the seedling fixing portion 1B again. Then, the same operation is repeated. After the work is completed, in order to fix the pedestal 1 and the sliding member 3, the screw 6 is loaded into the through hole 1F on the side surface of the pedestal 1 and inserted into the fixing female screw 3B on the side surface of the sliding member 3 to fix the screw. . When replacing the cutter blade 4, the through hole 1F of the bank 1E of the pedestal 1
The sliding member 3 is removed from the pedestal 1 by removing the screw 6 that has been screwed to, and then the male screw 5 that fixes the cutter blade 4 is removed and replaced with a new cutter blade. At this time, the pedestal 1 and the sliding member 3 can be washed.

After using the cutter device of the present invention, it is preferable to fix the pedestal and the sliding member. That is, if the sliding member comes off the pedestal, the cutter blade may be broken or the blade edge may be exposed, which is dangerous. Therefore, in this embodiment, a through hole is provided in the bank and a fixing female screw is provided in the sliding member, and the sliding member on the pedestal is fixed by the screw, but as another embodiment, as shown in FIG. The bank 11E of the pedestal 11 is provided with a through window 11G having a constant length along the sliding direction of the sliding member 13, and the side surface of the sliding member 13 is provided with a stopper internal thread 13A corresponding to the through window 11G. A structure in which the stopper 12 is screwed to the stopper internal thread 13A of the sliding member 13 through the through window 11G, or a screw hole 21H is provided in the bank 21E of the pedestal 21 as shown in FIG. A recessed groove 23D having a constant length corresponding to the screw hole 21H of the pedestal 21 is provided along the moving direction, a stopper 22 is loaded into the screw hole 21H of the pedestal 21, and the tip of the stopper 22 is attached to the sliding member 23. The structure may be slidably inserted into the concave groove 23D. In the case of the above structure, the stopper itself also serves as a mounting structure, and the mounting structure shown in FIG. 4 is not necessary, and at the same time, the stopper groove provided under the concave groove of the pedestal is unnecessary, and the tip of the cutter blade is A cutter sliding groove for inserting and moving may be provided with a predetermined length. Therefore, there is an advantage that the lower part of the pedestal can be easily processed and at the same time, it is not necessary to remove the screws before and after the work as shown in FIG.

Although not shown as a structure having the same advantages, the stopper groove of the pedestal is perforated to the bottom surface of the pedestal to form a through window, and the diameter of the upper portion of the stopper groove is made smaller than that of the lower portion to form a step. It is also possible to provide a mounting structure by fixing a nut or the like, which is larger than the diameter of the upper part in the stopper groove from the bottom surface of the pedestal, to the stopper. In this case, the stopper itself also serves as the attachment mechanism as well as the stopper function.

In this embodiment, the lower part of the pedestal is projected forward to form the seedling fixing part. However, the lower part of the pedestal is not projected forward, and the whole part including the seedling fixing part has a groove. Although not shown in this case, the seedling fixing portion may be provided with a deep groove having an arbitrary angle with the cutter sliding groove from the upper part to the lower part of the bank.

FIG. 8 shows still another embodiment of the cutter device, in which a bank 31E of the pedestal 31 is provided with a bent portion 31I which is bent inward so as to surround the sliding member 3.
The sliding member 3 that holds and fixes the cutter blade is configured to be non-detachable from the pedestal 31 by the bent portion 31I of the pedestal 31 and the stopper 2 that moves in the stopper groove 31C. Here, the structures of the cutter sliding groove and the seedling fixing portion connected to the stopper groove are the same as those in FIG. When replacing the cutter blade, the stopper 2 is removed, the sliding member 3 is slid in the longitudinal direction and taken out from the base 31, and the cutter blade is replaced. Also in this structure, a new mounting structure is not required, and the sliding member is held on the base only by the shape of the base and the stopper.

Although not shown as a stopper,
Instead of the stopper and the stopper groove of FIG. 8, a through window having a certain length is provided in the sliding direction on the bank of the pedestal in the same manner as in FIGS. 6 and 7, and the sliding member of the sliding member is provided so as to correspond to the through window. A female screw for a stopper that fixes the stopper may be provided on the side surface, or a screw hole may be provided on the bank of the pedestal, and a recess of a certain length in the sliding direction may be formed on the side surface of the sliding member so as to correspond to the screw hole. A groove may be provided, the stopper may be fixed to the screw hole, and the tip of the stopper may be inserted into the groove.

FIG. 9 shows still another embodiment, which shows a combination of a pedestal and a sliding member. The internal shape of the concave groove 41A of the pedestal 41 is trapezoidal, and the cross section of the sliding member 33 is its pedestal. It is trapezoidal so as to match the concave groove 41A. Also in this case, as in FIG. 8, a new mounting structure is not required,
The sliding member 33 is slidably held on the pedestal 41 only by providing the stopper 2. As the stopper 2, not only the structure shown in FIG. 1 but also the structure shown in FIGS. 6 and 7 may be used. Although the sliding member has a trapezoidal cross-sectional shape here, it may have any shape such as hexagonal, octagonal, or circular, and the shape of the groove in the pedestal should match the shape of the sliding member. To configure. Further, the seedling fixing portion is formed by projecting the lower part of the pedestal forward as in the case of FIG.

FIGS. 10 and 11 show another embodiment of the present invention, which is a through hole 51J having a quadrangular cross section in the longitudinal direction of the pedestal 51.
Is provided to form a tubular shape, and only the lower portion of the pedestal 51 is projected forward to form a seedling fixing portion 51B. In the lower part of the pedestal 51, a cutter sliding groove 51D into which a cutter blade is inserted and moved is provided in the longitudinal direction toward the front, and a top surface portion 51K of the pedestal 51 is formed with a longitudinal through window 51L having a certain length. It is used as an insertion hole for the stopper 32. The sliding member 43 for holding and fixing the cutter blade 4 forward has a rectangular cross section so as to match the through hole 51J of the pedestal 51, and a stopper female screw 43A corresponding to the through window 51L of the pedestal 51 is provided on the upper surface thereof. The sliding member 43 is loaded in the through hole 51J of the pedestal 51, the stopper 32 is inserted through the through window 51L of the pedestal 51, and the stopper 32 is inserted into the female screw 43A for stopper on the upper surface of the sliding member 43 to fix the screw.

In this embodiment, a through window is provided on the top surface of the cylindrical pedestal to form a stopper insertion hole, but it may be provided on the side surface of the pedestal as shown in FIG. Also, the through hole 5 of the pedestal 51
1J has a quadrangular cross section in the present embodiment, but its shape is arbitrary such as trapezoidal, hexagonal, octagonal, and circular, and the cross-sectional shape of the sliding member is arbitrarily configured to match these shapes.

12, FIG. 13, FIG. 14 and FIG. 15 are still another embodiment of the present invention, in which the upper surface of the pedestal 61 is formed with a convex portion 61M extending in the longitudinal direction, which is aligned with the convex portion 61M. The sliding member 53 having the concave groove 53E is slidably held in a state where the concave groove 53E is engaged with the convex portion 61M. A pedestal 61 having a convex portion 61M in the longitudinal direction is provided with a cutter sliding groove 61D at the center, in which the cutter blade 4 moves forward in the longitudinal direction of the convex portion 61M.
Further, a seedling fixing portion 61B having a certain angle with the cutter sliding groove 61D is formed in front of the pedestal 61, and a stopper female screw 61N is formed on the side surface of the convex portion 61M of the pedestal 61. In front of the sliding member 53, the top surface portion of the recessed groove 53E excluding the bank 53F is projected, and a slit 53C for inserting the cutter blade 4 is formed in the center of the top surface portion to fix the cutter blade 4. A female screw for loading the male screw 5 is formed on the side surface. Also, the sliding member 5
The bank 53F of No. 3 is provided with a through window 53G having a certain length along the sliding direction so as to correspond to the female screw 61N for the stopper provided on the side surface of the convex portion 61M of the pedestal 61. By fixing the stopper 42 to the female screw 61N for the stopper of the convex portion 61M through the through window 53G, it serves not only as a stopper but also as a mounting structure for the pedestal 61 and the sliding member 53.

In this embodiment, the stopper and the mounting structure of the pedestal and the sliding member are not limited to the above-mentioned structure, but a stopper groove is provided behind the cutter sliding groove as shown in FIG. The configuration can be applied as it is. Further, as the structure of the stopper, although not shown in addition to the above-mentioned embodiment, a concave groove having a constant length is provided on the side surface of the convex portion of the pedestal along the sliding direction, and this concave groove is formed on the bank of the sliding member. A structure may be adopted in which a corresponding female screw for a stopper is provided, the stopper is inserted and fixed to this female screw for a stopper, and the tip of the stopper is slidably inserted into the groove.

Although the number of the seedling fixing portions is one in all of the above embodiments, for example, two or more grooves can be provided, and the greater the number, the better the productivity.

Further, as a method of attaching the cutter blade, a method of sandwiching the cutter blade in a slit provided in front of the sliding member was used, but as another method, one side from the longitudinal center in front of the sliding member is used. There is also a method of removing and installing a new cutter blade holder separately. In other words, insert a male screw into the female screw provided on the front side surface of the sliding member, insert the fixing hole of the cutter blade into this male screw, and then insert the cutter blade retainer formed with the female screw so as to sandwich the cutter blade. , Tighten the male screw to fix it. This method has an advantage that the cutter blade can be easily attached and aligned.

[0021]

The cutter device of the present invention has the following various features. 1. Since the cutter blade is attached diagonally and slides in the longitudinal direction for cutting, a stable and beautiful cutting surface is always obtained. 2. Since the slide cutting is performed by the sliding member, there is no variation in the angle of the cut surface, and a reliable oblique cut surface can be obtained. 3. The cutter device has a simple structure and is excellent in productivity.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a cutter device of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a cross-sectional view taken along line BB of FIG.

FIG. 4 is a partial cross-sectional view of the mounting structure in the embodiment of FIG.

FIG. 5 is a plan view showing a state in which seedlings are placed on the cutter device.

FIG. 6 is a partial cross-sectional view showing another embodiment of the present invention.

FIG. 7 is a partial cross-sectional view showing still another embodiment of the present invention.

FIG. 8 is a sectional view showing still another embodiment of the present invention.

FIG. 9 is a sectional view showing still another embodiment of the present invention.

FIG. 10 is a sectional view showing still another embodiment of the present invention.

11 is a cross-sectional view taken along the line CC of FIG.

FIG. 12 is a front view showing still another embodiment of the present invention.

13 is a sectional view of the embodiment of FIG.

FIG. 14 is a sectional view taken along the line DD of FIG.

FIG. 15 is a plan view of the embodiment shown in FIG.

[Explanation of symbols]

 1 pedestal 1A concave groove of pedestal 1 1B seedling fixing part 1C stopper groove 1D cutter sliding groove 2 stopper 3 sliding member 3A stopper female screw 3C slit 4 cutter blade 11 pedestal 11G through window 12 stopper 13 sliding member 21 pedestal 22 Stopper 23 Sliding member 23D Groove 31 Base 31I Bent part of base 31 41 Base 33 Sliding member 51 Base 51J Through hole 51 of base 51 51L Through window 32 Stopper 43 Sliding member 61 Base 61M Convex portion of base 61 42 Stopper 53 Sliding member 53E Recessed groove of sliding member 53 53G Through window

Claims (4)

[Claims] 1. A sliding member holding and fixing a cutter blade is provided so as to be slidable in the longitudinal direction of a pedestal, and a seedling is placed on the pedestal at a right angle or at an appropriate angle with respect to the sliding direction of the sliding member. A cutter device for cutting seedlings, wherein the seedling fixing portion is provided on the sliding line of the cutter blade. 2. A pedestal having a groove extending in the longitudinal direction,
The cutter device for cutting seedlings according to claim 1, wherein a sliding member having a cross-sectional shape matching the groove of the pedestal is slidable in the groove. 3. A pedestal having a through hole extending in the longitudinal direction, and a slide member having a cross-sectional shape that matches the through hole of the pedestal is slidable in the through hole. The cutter device for cutting seedlings according to 1. 4. A pedestal having a convex portion extending in the longitudinal direction,
2. The cutting device for cutting seedlings according to claim 1, wherein a sliding member having a concave groove that matches the convex portion of the pedestal is configured to be slidable with the concave groove meshing with the convex portion.