JP3153730U - Saw and sickle mounting structure, and a saw with a sickle for high pruning - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to firmly attach a base end sickle part and a saw part to an attachment part by increasing mutual engagement strength between the base end sickle part and the saw part. SOLUTION: A plate-like saw portion 13 having a saw tooth 13a formed at the edge portion, and an edge portion that can be fitted into a base end portion of the saw portion 13 and that faces the side where the saw tooth 13a is formed. The base end sickle part 14 in which the sickle blade 14a is formed, and the attachment part 15 to which the base end sickle part 14 and the saw part 13 are detachably attached in a state where the base end sickle part 14 is fitted in the saw part 13 are provided. The engaging portion 20 formed on the proximal end sickle portion 14 can be detachably fitted to the engaged portion 21 formed on the saw portion 13 and can be engaged with each other. In a state in which the base sickle portion 14 is engaged with the engaged portion 21 so as not to move in any direction parallel to the plate surface of the saw portion 13, the engaging portion 20 and An engaged portion 21 is formed. [Selection] Figure 3

Description

  The present invention relates to a saw with a sickle for high pruning used, for example, for pruning raw trees, and a saw part and a sickle part mounting structure that can be used therefor.

  As an example of a saw with a sickle for high pruning, what is shown in FIGS. 6-8 can be considered (for example, refer patent document 1). As shown in FIGS. 6 (a) and 6 (b), this high-pruning sickle saw 1 is fitted into a plate-like saw portion 2 on which saw teeth 2a are formed and a base end portion of the saw portion 2. And a base-like sickle portion 3 that engages with each other. The saw portion 2 and the base-end sickle portion 3 are attached to the attachment portion 5 with three bolts 4. An operation pole 6 is attached to the attachment portion 5 with two bolts 7.

  And the engagement structure of the saw part 2 and the base end sickle part 3 is the engaging part 8 formed in the base end sickle part 3 and the saw part 2 as shown in FIGS. And an engaged portion 9 formed at the base end portion. 7A shows a state in which the engaging portion 8 of the base end sickle portion 3 is fitted into the engaged portion 9 of the saw portion 2, and FIG. 7B shows the base end sickle portion 3 as The state removed from the saw part 2 is shown.

  The engaged portion 9 formed in the saw portion 2 has a convex portion 9a and a locking edge portion 9b. The convex portion 9a is formed from the base end portion of the saw portion 2 to the saw portion 2. It protrudes in the length direction and toward the attachment portion 5 side (the side opposite to the saw tooth 2a). The locking edge portion 9b is formed in a shape extending in a linear direction from the base end portion of the convex portion 9a toward the mounting portion 5 side.

  And the engaging part 8 formed in the base end sickle part 3 has the recessed part 8a and the latching edge part 8b, and these recessed parts 8a and the latching edge part 8b are shown to Fig.7 (a). As shown, the recessed portion 8a and the protruding portion 9a and the engaging edge portion 8b and the engaging edge portion 9b are abutted with each other in a state of being fitted to the protruding portion 9a and the engaging edge portion 9b of the saw portion 2. It is formed so that.

  Next, with reference to Fig.6 (a), the procedure of pruning the branch of a raw tree using this saw 1 with a high pruning sickle is demonstrated. First, the operator holds the operation pole 6 with his hand and raises the saw 1 with high sickle, and pushes the operation pole 6 in the direction of the arrow 27. In this way, a cut is made in the lower part of the outer periphery of the branch 28 of the living tree by the sickle blade 3a of the base end sickle part 3. Next, the cut portion is cut by the saw portion 2 and the branch 28 is cut off. This makes it possible to cut the raw tree branch 28 by forming a clean cut surface so that the lower part of the outer skin is not left uncut. In this way, when a clean cut surface can be formed and cut, the cut surface can be made difficult to rot.

  In addition, as shown in FIG. 8, the saw 1 with a high-branch sickle is attached to and detached from the saw part 2 and the base end sickle part 3 with a bolt 4 to a mounting part 5 having a reverse U-shaped cross section at the tip part. Since it is attached freely, when one of the saw part 2 and the base end sickle part 3 becomes unusable due to, for example, a blade (tooth) being damaged, replace the unusable part with a replacement part. Can be used. For example, as shown in FIG. 8, when the saw part 2 is attached to the attachment part 5 with bolts 4 and 4, the bolt 4 attaching the proximal sickle part 3 to the attachment part 5 is removed to remove this The proximal sickle portion 3 can be removed from the attachment portion 5 and can be attached to the attachment portion 5. Therefore, the workability of exchanging the proximal end sickle portion 3 is good.

Design Registration No. 1255539

  However, in the conventional high-branching sickle saw 1, as shown in FIG. 8, when the bolt 4 that attaches the base end sickle part 3 to the attachment part 5 is removed from the insertion hole 5 a of the attachment part 5, The base end sickle part 3 may fall off from the slit-like lower opening of the attachment part 5 having a reverse U-shaped cross section, and may be lost.

  At this time, the concave portion 8a of the base end sickle portion 3 shown in FIGS. 7A and 7B is detached from the convex portion 9a of the saw portion 2 because the convex portion 9a has a tapered chevron shape. This is because it is formed in a substantially V shape that becomes narrower as it goes from the entrance part of the opening toward the back side part.

  Further, as shown in FIG. 6A, when the scalpel blade 3a of the base end sickle portion 3 is cut at the lower outer periphery of the branch 28, the base end sickle portion 3 is pushed down by the reaction force from the branch 28. Directional force works. This pressing force is held by the clamping force by which the side plates on both sides of the attachment portion 5 having an inverted U-shaped cross section sandwich the proximal end sickle portion 3 therebetween.

  Therefore, in order to strongly attach the base end sickle portion 3 to the mounting portion 5 having an inverted U-shaped cross section, it is necessary to strongly tighten the bolt 4 inserted through the insertion hole 5a of the base end sickle portion 3. It is difficult for a person to tighten the bolt 4 strongly.

  When the high branch pruning operation is performed, the bolt 4 is loosened, so that the attachment strength of the proximal sickle portion 3 to the attachment portion 5 may be reduced. A looseness may occur in how the sickle portion 3 is attached, and it may be difficult to make a cut at the lower outer periphery of the branch 28 using the proximal sickle portion 3.

  The present invention has been made in order to solve the above-described problems. By integrating the base end sickle portion and the saw portion with each other to increase the mutual engagement strength, these base end sickle portions are provided. It is an object of the present invention to provide a saw and sickle mounting structure that can firmly attach the part and the saw part to the mounting part, and a high-branch sickle saw.

  The mounting structure of the saw part and the sickle part according to the first device is a plate-like saw part in which saw teeth are formed on the edge part, and can be fitted into the base end part of the saw part. A proximal sickle portion that protrudes from the edge portion where the saw blade is formed and has a sickle blade formed on the edge portion toward the side where the saw blade is formed, and the proximal sickle portion is fitted into the saw portion. In the mounting structure of the saw part and the sickle part, the base end sickle part and the saw part are detachably attached in a state where the operation pole is attached to the base end sickle part. The engaging portion can be detachably fitted to the engaged portion formed on the saw portion so as to be engaged with each other, and the engaging portion is engaged with the engaged portion. In the fitted state, the base end sickle portion is engaged so as not to move in any direction parallel to the plate surface of the saw portion. The shape, is characterized in that the engaging portion and the engaged portion is formed.

  According to the attachment structure of the saw portion and the sickle portion according to the first device, for example, when cutting a tree branch, first, the outer peripheral lower portion of the branch is cut by a sickle blade of the base end sickle portion. Next, the part with the cut is cut by the saw part, and the branch is cut off. As a result, the branch of the tree can be cut by forming a clean cut surface so that the lower part of the outer skin is not left uncut. In this way, when a clean cut surface is formed and cut, the cut surface can be made difficult to rot.

  And since the saw part and the base end sickle part are detachably attached to the attachment part, when one of the saw part and the base end sickle part becomes unusable, the part that cannot be used is replaced with a replacement part. Can be used interchangeably.

  Further, since the base end sickle portion is engaged with the saw portion by fitting the base end sickle portion into the engaged portion of the saw portion, the base end sickle portion and the saw portion are They can be arranged in substantially the same plane. Thereby, the branch can be cut by the saw portion at the exact cut portion of the lower periphery of the branch formed by the sickle blade of the proximal end sickle portion. As a result, the branch can be cut off with a clean cut surface.

  Furthermore, since the base end sickle part is locked so as not to move in any direction parallel to the plate surface of the saw part with the engaging part fitted in the engaged part, the base end The sickle portion and the saw portion can be integrated with each other, and thereby the mutual engagement strength can be increased. Therefore, the base end sickle portion and the saw portion can be firmly attached to the attachment portion by fitting the engagement portion into the engaged portion.

  The attachment structure of the saw part and the sickle part according to the second device is the attachment structure of the saw part and sickle part of the first device, wherein the engagement part is formed as having a convex part or a concave part, The engaging portion is formed as having a concave portion or a convex portion, and the convex portion is formed so as to expand from the base end portion toward the distal end portion, and the concave portion is formed on the back side from the inlet portion of the opening. It is formed so that it may expand as it goes to the part.

  According to the attachment structure of the saw part and the sickle part according to the second device, the tip part of the convex part is enlarged, and the tip part of the enlarged convex part is fitted into the enlarged back side part of the concave part. The proximal sickle portion can be locked so as not to move in any direction parallel to the plate surface of the saw portion.

  The attachment structure of the saw part and sickle part according to the third aspect is the attachment structure of the saw part and sickle part according to the second aspect, wherein the convex part expands to both sides as it goes from the base end part to the tip part. The concave portion is formed so as to expand to both sides as it goes from the entrance portion of the opening toward the back side portion.

  According to the attachment structure of the saw part and sickle part according to the third device, the base end sickle part can be firmly locked so as not to move in any direction parallel to the plate surface of the saw part, It can hold firmly also to the moment which acts on an engaging part or an engaged part. Moreover, it can be of a simple structure and can be manufactured at low cost.

  The saw and sickle mounting structure according to the fourth invention is the saw and sickle mounting structure according to any one of the first to third inventions, wherein the saw part and the base sickle part are bolted. It is characterized by being attached by being detachably sandwiched between attachment parts.

  According to the attachment structure of the saw part and the sickle part according to the fourth device, the saw part and the base end sickle part are detachably firmly attached to the attachment part and attached by the operation of tightening the bolt and the operation of loosening the bolt. be able to.

  According to a fifth aspect of the present invention, there is provided a saw part and a sickle part mounting structure, the saw part and the sickle part mounting structure according to any one of the first to fourth aspects, wherein the saw part and the sickle part are provided at a tip portion of the saw part. The tip sickle portion further includes a sickle blade projecting from the edge side where the saw blade is formed, and the tip sickle portion has a sickle blade formed at the edge portion toward the side where the saw tooth is formed. It is what.

  According to the attachment structure of the saw part and the sickle part according to the fifth device, a thin branch can be cut out by operating the tip sickle part in the pulling direction, for example. And the cut branch caught by the branch and the cut branch can be dropped using this tip sickle part.

  A saw with a sickle for high pruning according to a sixth device is provided with the attachment structure of the saw portion and the sickle portion according to any one of the first to fifth devices, and the operation pole is attached to the attachment portion. is there.

  According to the sickle saw for high pruning according to the sixth device, the mounting structure of the saw part and the sickle part operates as described above. Then, the operator can use the saw with a sickle for high pruning to cut and cut the branches of a living tree in high places.

  According to the attachment structure of the saw part and the sickle part according to the first invention and the saw with a sickle for high pruning according to the sixth invention, the engaging part of the proximal sickle part is fitted into the engaged part of the saw part. The base end sickle part is locked so that it does not move in any direction parallel to the plate surface of the saw part, so that the base end sickle part and the saw part are integrated with each other. The mutual engagement strength can be increased. Therefore, the base end sickle portion and the saw portion can be firmly attached to the attachment portion. Furthermore, it is possible to prevent the base end sickle portion from being detached from the saw portion and the attachment portion and being lost in a state where the saw portion and the base end sickle portion are attached to the attachment portion.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the saw with a high-branch sickle which concerns on 1st Embodiment of this invention, (a) is a front view, (b) is a side view. It is a figure which shows the attachment structure of the saw part and sickle part with which the saw with a high-branch sickle which concerns on the 1st Embodiment is equipped, (a) is a partial enlarged front view which shows the state which fitted the base end sickle part in the saw part FIG. 4B is a partially enlarged front view showing a state where the base end sickle portion is removed from the saw portion. It is a partial enlarged front view which shows the state which has cut | disconnected the outer peripheral lower part of the branch using the base end sickle part of the saw with a high-branch sickle which concerns on the 1st Embodiment. (A) is the elements on larger scale which show the attachment structure of the saw part and sickle part which concern on 2nd Embodiment of the invention, (b) shows the attachment structure of the saw part and sickle part which concerns on 3rd Embodiment of the invention. It is a partial expanded front view shown. (A) is a partial enlarged front view showing a saw and sickle mounting structure according to the fourth embodiment of the present invention, (b) is a saw and sickle mounting structure according to the fifth embodiment of the present invention. It is a partial expanded front view shown. It is a figure which shows the conventional saw with a sickle for high pruning, (a) is a front view, (b) is a side view. It is a figure which shows the attachment structure of the saw part and the sickle part with which the conventional saw with a sickle for high pruning is equipped, (a) is a partial enlarged front view which shows the state which fitted the base end sickle part in the saw part, (b) ) Is a partially enlarged front view showing a state in which the proximal sickle portion is removed from the saw portion. It is the elements on larger scale which show the state which removed in order to replace | exchange the base end sickle part of the conventional saw with a scissors for high pruning.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a saw and sickle mounting structure according to the present invention and a high-branch sickle saw having the same will be described below with reference to FIGS. As shown in FIGS. 1 (a) and 1 (b), this high-pruning sickle saw 11 includes a saw portion 13 and a base end sickle portion 14 fitted into and engaged with the base end portion of the saw portion 13. The saw portion 13 and the base end sickle portion 14 are attached to the attachment portion 15 with bolts 16, 16, and 16 (saw portion and sickle portion attachment structure 12). An operation pole 17 is attached to the attachment portion 15 with bolts 18 and 18.

  As shown in FIGS. 1 (a) and 1 (b), the saw portion 13 is a plate-like body whose front shape is formed in an arc shape, and a predetermined shape is formed on the inner edge portion of the saw portion 13 formed in the arc shape. A sawtooth 13a is formed over a range. A tip sickle portion 19 is formed at the tip portion of the saw portion 13.

  As shown in FIG. 1A, the tip sickle portion 19 projects from the inner edge side of the saw portion 13 where the saw teeth 13a are formed in a direction substantially perpendicular to the operation pole 17, and the saw teeth 13a are formed. A sickle blade 19a is formed at the edge toward the side.

  As shown in FIG. 1A, the base end sickle portion 14 is fitted and engaged with the base end portion of the saw portion 13, and the saw tooth 13 a of the saw portion 13 is formed similarly to the tip sickle portion 19. It protrudes in a direction substantially perpendicular to the operation pole 17 from the inner edge side. And the sickle blade 14a is formed in the edge part which the base end sickle part 14 goes to the side in which the sawtooth 13a is formed.

  Thus, as shown in FIG. 1A, the distal sickle portion 19 and the proximal sickle portion 14 are provided at the distal end portion and the proximal end portion of the saw portion 13, and the inner edge portion side where the saw teeth 13 a are formed. Are projected in the same direction, and sickle blades 19a and 14a are formed on the edge portions of the distal sickle portion 19 and the proximal sickle portion 14 facing each other. The saw tooth 13 a is an edge portion of the saw portion 13 and is formed over a range between the distal sickle portion 19 and the proximal sickle portion 14.

  And the saw part 13 and the base end sickle part 14 which have these front-end | tip sickle parts 19 are the plate-shaped bodies formed in the substantially same thickness, and the base end sickle part 14 is understood from FIG.1 (b). Is formed so as to be a single plate-like body in a state in which is inserted into and engaged with the saw portion 13.

  Next, with reference to FIG. 2 (a), (b), the attachment structure 12 of a saw part and a sickle part is demonstrated. The saw and sickle mounting structure 12 includes an engaging portion 20 formed on the base end sickle portion 14 and an engaged portion 21 formed on the base end portion of the saw portion 13. FIG. 2A shows a state in which the engaging portion 20 of the base end sickle portion 14 is fitted into the engaged portion 21 of the saw portion 13, and FIG. 2B shows the base end sickle portion 14. The state removed from the saw part 13 is shown.

  The engaging portion 20 formed on the base end sickle portion 14 can be detachably fitted to the engaged portion 21 formed on the saw portion 13 and can be engaged with each other. Then, as shown in FIG. 2A, the engagement portion 20 and the engaged portion 21 are configured so that the base end sickle portion 14 is sawtooth with the engagement portion 20 fitted into the engaged portion 21. It is formed in a shape that locks so as not to move in any direction parallel to the plate surface of the portion 13.

  The engaged portion 21 formed in the saw portion 13 has a concave portion 22 and a locking edge portion 23 as shown in FIGS. The concave portion 22 is formed by cutting out on the edge side where the saw tooth 13a of the base end portion of the saw portion 13 is formed. And the recessed part 22 is formed so that it may taper up on both sides as it goes to the back | inner side part from the entrance part 22a of the opening. And the latching edge part 23 is the shape extended in the linear direction toward the attachment part 15 side from the edge part (edge part on the opposite side to the sawtooth 13a) of the attachment part 15 side which forms the inlet_port | entrance part 22a of the recessed part 22 Is formed.

  The engaging portion 20 formed on the proximal sickle portion 14 has a convex portion 24 and a locking edge portion 25. As shown in FIG. 2A, the convex portion 24 and the locking edge portion 25 are fitted into the concave portion 22 and the locking edge portion 23 of the saw portion 13, as shown in FIG. , And the locking edge 25 and the locking edge 23 are formed in a shape that abuts each other.

  Therefore, the convex part 24 is formed so that it may taper up on both sides as it goes to the front-end | tip part from the base end part. And the latching edge part 25 is extended in the linear direction toward the attachment part 15 side from the edge part (edge part on the opposite side to the sawtooth 13a) of the attachment part 15 side which forms the base end part of the convex part 24. It is formed into a shape.

  Next, the attachment part 15 is demonstrated with reference to FIG.1 and FIG.3. As can be seen from FIGS. 1A and 1B, the attachment portion 15 has a tip portion with a reverse U-shaped cross section. And between the pair of side plates 15a, 15a facing each other at the tip, the engaging part 20 of the base end sickle part 14 is fitted into the engaged part 21 of the saw part 13 and engaged with each other. Thus, the engaging portion 20 and the engaged portion 21 that are engaged with each other can be detachably mounted.

  And it forms in the base end part of two insertion holes formed in a pair of side plates 15a and 15a which form the front-end | tip part of the attaching part 15, and the saw part 13 pinched | interposed between this pair of side plates 15a and 15a. The base end portion of the saw portion 13 can be detachably fixed and attached to the distal end portion of the attachment portion 15 by tightening the two insertion holes through bolts 16 and 16 respectively.

  Further, one insertion hole formed in the pair of side plates 15a and 15a forming the distal end portion of the attachment portion 15, and the convex portion 24 of the base end sickle portion 14 sandwiched between the pair of side plates 15a and 15a. The base end sickle portion 14 can be detachably fixed and attached to the distal end portion of the attachment portion 15 by tightening the bolt 16 through one insertion hole formed in the attachment portion 15.

  Further, as shown in FIGS. 1A and 1B, the base end portion of the attachment portion 15 is formed in a substantially cylindrical shape divided into two parts, and the tip end portion of the operation pole 17 can be freely attached to and detached from this base end portion. It is configured so that it can be inserted into and attached to. Then, with the distal end portion of the operation pole 17 inserted into the proximal end portion of the attachment portion 15, the operation pole 17 is coupled to each other using the two bolts 18 and 18.

  The operation pole 17 is a four-stage telescopic type. Then, by operating the three lock mechanisms 26 with the operation pole 17 adjusted to a desired length, it can be fixed in a desired length state.

  Next, with reference to FIG. 1 and FIG. 3, a procedure for pruning the branches 28 of the living tree using the high-branch sickle saw 11 configured as described above will be described. First, the operator holds the operation pole 17 adjusted to a desired length with his / her hand so that the high-branch sickle saw 11 is raised, and pushes the operation pole 17 in the direction of the arrow 27 shown in FIG. In this way, a cut is made in the lower part of the outer periphery of the branch 28 of the raw tree by the sickle blade 14a of the base end sickle part 14. Next, the cut portion is cut by the saw portion 13 and the branch 28 is cut off. This makes it possible to cut the raw tree branch 28 by forming a clean cut surface so that the lower part of the outer skin is not left uncut. In this way, when a clean cut surface is formed and cut, the cut surface can be made difficult to rot.

  Moreover, according to the attachment structure 12 of the saw part and sickle part comprised as mentioned above, as shown to Fig.1 (a), (b), each of the base end part of the saw part 13 and the base end sickle part 14 is shown. Is detachably attached to the attachment portion 15 using three bolts 16, so that either one or both of the saw portion 13 and the base end sickle portion 14 may be damaged by, for example, damage to the blade (tooth). When it can no longer be used, it can be used by replacing it with a replacement part. Therefore, these saw part 13 and base end sickle part 14 can be used economically.

  However, when replacing either one or both of the saw portion 13 and the base end sickle portion 14, first, all three bolts 16 are removed, and both the saw portion 13 and the base end sickle portion 14 are replaced. It is necessary to remove from the attachment portion 15. After that, either one or both of the saw portion 13 and the base end sickle portion 14 are replaced with replacement parts, and both are fitted and engaged with each other, and are attached to the attachment portion 15 in this engaged state. And fix with bolts 16.

  As shown in FIGS. 2A and 2B, the engaging portion 20 and the engaged portion 21 are configured so that the engaging portion 20 of the proximal end sickle portion 14 is replaced with the engaged portion 21 of the saw portion 13. Since the base end sickle portion 14 is engaged with the saw portion 13 by fitting, the base end sickle portion 14 and the saw portion 13 can be arranged in substantially the same plane. Thereby, the branch 28 can be cut by the saw portion 13 at the portion of the cut at the lower outer periphery of the branch 28 formed by the sickle blade 14 a of the base end sickle portion 14. As a result, the branch 28 can be cut off with a clean cut surface.

  2 and 3, the engaging portion 20 and the engaged portion 21 are in a state in which the engaging portion 20 is fitted in the engaged portion 21, and the proximal end sickle portion 14 is a saw portion. The base end sickle portion 14 and the saw portion 13 can be integrated with each other, so that the base end sickle portion can be integrated with each other. The mutual engagement strength of 14 and the saw portion 13 can be increased. Therefore, the proximal sickle portion 14 and the saw portion 13 can be firmly attached to the attachment portion 15 by fitting the engaging portion 20 into the engaged portion 21 and engaging each other.

  In this manner, the saw and sickle mounting structure 12 is configured so that the base end sickle portion 14 is parallel to the plate surface of the saw portion 13 by fitting the engaging portion 20 into the engaged portion 21. Since it is the structure which latches so that it may not move also to a direction, it can manufacture at low cost.

  Here, referring to FIG. 2A, the engagement portion 20 of the proximal end sickle portion 14 is fitted in the engaged portion 21 of the saw portion 13, and the proximal end sickle portion 14 is bolted. It will be described that the base sickle portion 14 can be locked so as not to move in any direction parallel to the plate surface of the saw portion 13 in a state where it is not fixed to the attachment portion 15 at 16.

  In FIG. 2A, when a force is applied to the base end sickle portion 14 in the left and right directions, the left and right outer edge portions of the convex portion 24 formed on the base end sickle portion 14 are saw portions. 13, the proximal sickle portion 14 can be locked so as not to move in the left and right directions.

  And since the recessed part 22 shown to Fig.2 (a) is formed so that it may expand to both sides as it goes to the back | inner side part from the entrance part 22a of the opening, each outer edge of the convex part 24 as mentioned above When the portion presses the left and right inner edge portions of the concave portion 22, the component force acting on the convex portion 24 in the direction along the outer edge portion and the inner edge portion is directed toward the back side of the concave portion 22. Therefore, when a force is applied to the proximal sickle portion 14 in the left and right directions, the convex portion 24 acts as a force for entering the back side of the concave portion 22, and the convex portion 24 passes through the inlet portion 22 a of the concave portion 22. The base end sickle portion 14 can be locked so as not to move in the left and right directions with respect to the saw portion 13 without slipping out.

  In FIG. 2A, when a force is applied to the base end sickle portion 14 in a downward direction, the left and right outer edge portions of the convex portion 24 formed on the base end sickle portion 14 are saw portions. 13, the proximal end sickle portion 14 can be locked so as not to move downward. That is, since the front end portion of the convex portion 24 is formed to have a larger width than the inlet portion 22 a of the concave portion 22, the convex portion 24 does not come off through the inlet portion 22 a of the concave portion 22.

  Further, in FIG. 2A, when a force directed upward is applied to the base end sickle portion 14, the outer peripheral edge portion of the convex portion 24 formed on the base end sickle portion 14 is applied to the saw portion 13. Since it contacts the inner edge of the back side of the recessed portion 22 formed, the proximal end sickle portion 14 can be locked so as not to move upward.

  Thus, when the base end sickle part 14 is not fixed to the attachment part 15 with the bolt 16 in a state where the engaging part 20 of the base end sickle part 14 is fitted into the engaged part 21 of the saw part 13. However, the engaging portion 20 and the non-engaging portion 20 can be locked so that the proximal sickle portion 14 does not move in any direction parallel to the plate surface of the saw portion 13.

  Further, as described above, the engaging portion 20 and the engaged portion 21 are fixed to the attachment portion 15 with the bolt 16 in a state where the engaging portion 20 is fitted in the engaged portion 21. Even if not, since the proximal end sickle portion 14 can be locked so as not to move in any direction parallel to the plate surface of the saw portion 13, the saw portion 13 and the proximal end sickle portion 14 are attached to the mounting portion. 15, even if the bolt 16 that attaches the base end sickle portion 14 to the attachment portion 15 is loosened and falls off, the base end sickle portion 14 is detached from the saw portion 13 and the attachment portion 15. It can be prevented from being lost.

  As described above, when the bolt 16 that attaches the base end sickle portion 14 to the attachment portion 15 is loosened and falls off, when the base end sickle portion 14 is used to cut the branch 28, And when the worker is an elderly person and the bolt 16 cannot be tightened strongly.

  And as shown to Fig.2 (a), the convex part 24 which the engaging part 20 has is formed so that it may expand on both sides as it goes to the front-end | tip part from the base end part. And the recessed part 22 which the to-be-engaged part 21 has is formed so that it may expand to both sides as it goes to the back | inner side part from the entrance part 22a of the opening. Therefore, the proximal end sickle portion 14 can be firmly locked so as not to move in any direction parallel to the plate surface of the saw portion 13, and the moment acting on the engaging portion 20 or the engaged portion 21. Can also be held firmly. Moreover, it can be of a simple structure and can be manufactured at low cost.

  The reason why the moment acting on the engaging portion 20 or the engaged portion 21 can be firmly held in this way is that the tip end portion of the convex portion 24 expands to the left and right sides. When the moment acts on the left and right sides of the convex portion 24, the portions expanding on the left and right sides of the concave portion 22 come into contact with the respective inner edge portions forming the space portions expanding on the left and right sides of the concave portion 22. is there.

  Further, as shown in FIGS. 1 and 2, the saw portion 13 and the base end sickle portion 14 are detachably attached to the attachment portion 15 by bolts 16, 16, 16. The saw part 13 and the base end sickle part 14 can be detachably and firmly attached to the attachment part 15 by an operation of tightening and an operation of loosening the bolts 16, 16, 16. Therefore, the operator can easily replace the saw portion 13 or the base end sickle portion 14, or both, and the workability is good.

  Further, as shown in FIGS. 1 and 2, since the tip sickle portion 19 is formed at the tip portion of the saw portion 13, the operator holds the operation pole 17 by hand and pulls the tip sickle portion 19 for example. By manipulating in the direction, a thin branch can be easily cut off. Then, the cut branch that is caught on the branch or the cut branch can be dropped using the tip sickle portion 19.

  In this way, the operator can use the high-branch sickle saw 11 shown in FIGS. 1 to 3 to cleanly cut and cut the branches 28 in the high places.

  Next, a second embodiment of the saw and sickle mounting structure (hereinafter sometimes simply referred to as “mounting structure”) according to the present invention will be described with reference to FIG. The attachment structure 30 of the second embodiment shown in FIG. 4A and the attachment structure 12 of the first embodiment shown in FIGS. 2A and 2B are different from each other in the engaging portions 31 and 20. And the front shapes of the engaged parts 32 and 21 are different. Except this, it is equivalent to 1st Embodiment, an equivalent part is shown with the same drawing code | symbol, and description of these equivalent parts is abbreviate | omitted.

  That is, the concave portion 22 formed in the engaged portion 21 of the saw portion 13 of the first embodiment shown in FIGS. 2A and 2B is formed on both sides as it goes from the opening entrance portion 22a toward the back side portion. In contrast, the concave portion 33 formed in the engaged portion 32 of the saw portion 13 of the second embodiment shown in FIG. 4A opens. It forms so that it may expand to both sides as it goes to the back | inner side part from the entrance part 33a, and the back | inner side part of this recessed part 33 is formed in the substantially oval shape. The engaging edge portions 34, 34 formed on the engaged portion 32 are connected to the attachment portion 15 side from the respective edge portions on the attachment portion 15 side and the saw tooth 13a side forming the inlet portion 33a of the recess 33. And it is formed in the shape extended toward each side of the saw-tooth 13a side.

  The engaging portion 31 formed on the proximal sickle portion 14 has a convex portion 35 and locking edge portions 36 and 36. As shown in FIG. 4A, the convex portion 35 and the locking edge portions 36 and 36 are formed in a state where the convex portion 35 and the locking edge portions 36 and 36 are fitted into the concave portion 33 and the locking edge portions 34 and 34 of the saw portion 13. 35 and the recessed part 33, and the latching edge parts 36 and 36 and the latching edge parts 34 and 34 are formed in the shape mutually abutted.

  Therefore, the convex part 35 is formed so that it may expand to both sides as it goes to the front-end | tip part from the base end part, and the front-end | tip part is formed in the substantially oval shape. Then, the locking edge portions 36, 36 extend from the respective edge portions on the attachment portion 15 side and the saw tooth 13a side forming the base end portion of the convex portion 35 to the respective sides on the attachment portion 15 side and the saw tooth 13a side. It is formed in a shape extending in a straight line direction.

  Next, a third embodiment of the saw and sickle mounting structure according to the present invention will be described with reference to FIG. The difference between the mounting structure 38 of the third embodiment shown in FIG. 4B and the mounting structure 30 of the second embodiment shown in FIG. This is where the front shapes of the portions 40 and 32 are different. Except this, it is equivalent to 2nd Embodiment, an equivalent part is shown with the same drawing code | symbol, and description of these equivalent parts is abbreviate | omitted.

  That is, the engaging portion 39 (the concave portion 33 and the locking edge portions 34, 34) formed on the proximal end sickle portion 14 of the third embodiment shown in FIG. 4B is the second portion shown in FIG. The shape is the same as the engaged portion 32 (the recessed portion 33 and the locking edge portions 34, 34) formed in the saw portion 13 of the embodiment. And the to-be-engaged part 40 (the convex part 35 and the latching edge parts 36 and 36) formed in the saw part 13 of 3rd Embodiment shown in FIG.4 (b) is 2nd shown to Fig.4 (a). It is the shape equivalent to the engaging part 31 (the convex part 35 and the latching edge parts 36 and 36) formed in the base end sickle part 14 of embodiment.

  Next, a fourth embodiment of the saw and sickle mounting structure according to the present invention will be described with reference to FIG. The difference between the mounting structure 42 of the fourth embodiment shown in FIG. 5 (a) and the mounting structure 38 of the third embodiment shown in FIG. 4 (b) is that the engaging portions 43 and 39 and the engaged parts are engaged. This is where the front shapes of the portions 44 and 40 are different. Except this, it is equivalent to 3rd Embodiment, an equivalent part is shown with the same drawing code | symbol, and description of these equivalent parts is abbreviate | omitted.

  That is, the recessed part 33 formed in the engaging part 39 of the base end sickle part 14 of 3rd Embodiment shown in FIG.4 (b) expands to both sides as it goes to the back | inner side part from the opening entrance part 33a. The inner side of the recess 33 is formed in a substantially oval shape, whereas the engagement portion 43 of the proximal end sickle portion 14 of the fourth embodiment shown in FIG. The formed recess 45 is formed so as to expand in a tapered shape on both sides as it goes from the opening entrance 45a to the back side.

  Then, the locking edge portions 34, 34 formed on the engaging portion 43 are connected to the attachment portion 15 side and the attachment portion 15 side and the saw tooth 13a side forming the inlet portion 45a of the recess 45, respectively. It is formed in a shape extending linearly toward each side of the saw tooth 13a.

  The engaged portion 44 formed in the saw portion 13 has a convex portion 46 and locking edge portions 36 and 36. As shown in FIG. 5 (a), the convex portion 46 and the locking edge portions 36 and 36 are formed in a state in which the concave portion 45 of the proximal end sickle portion 14 and the locking edge portions 34 and 34 are fitted. 46 and the recessed part 45, and the latching edge parts 36 and 36 and the latching edge parts 34 and 34 are formed in the shape mutually abutted.

  Therefore, the convex part 46 is formed in a taper shape so as to expand to both sides as it goes from the base end part to the tip part. And the latching edge parts 36 and 36 are each from the each edge part of the attachment part 15 side and the sawtooth 13a side which form the base end part of the convex part 46 to each side of the attachment part 15 side and the sawtooth 13a side, respectively. It is formed in a shape extending in a straight line direction.

  Next, a fifth embodiment of the saw and sickle mounting structure according to the present invention will be described with reference to FIG. The attachment structure 48 of the fifth embodiment shown in FIG. 5B is different from the attachment structure 42 of the fourth embodiment shown in FIG. The front shapes of the parts 50 and 44 are different. Except this, it is equivalent to 4th Embodiment, an equivalent part is shown with the same drawing code | symbol, and description of these equivalent parts is abbreviate | omitted.

  That is, the engaging portion 49 (the convex portion 46 and the locking edge portions 36 and 36) formed in the proximal end sickle portion 14 of the fifth embodiment shown in FIG. 5B is the same as that shown in FIG. It is the shape equivalent to the to-be-engaged part 44 (the convex part 46 and the latching edge parts 36 and 36) formed in the saw part 13 of 4 embodiment. And the to-be-engaged part 50 (the recessed part 45 and the latching edge parts 34 and 34) formed in the saw part 13 of 5th Embodiment shown in FIG.5 (b) is 4th Embodiment shown to Fig.5 (a). It is the shape equivalent to the engaging part 43 (the recessed part 45 and the latching edge parts 34 and 34) formed in the base end sickle part 14 of a form.

  However, in each of the above-described embodiments, as shown in FIGS. 2 to 5, the recessed portion 22 or the like of the engaged portion 21 or the like expands to both sides as it goes from the inlet portion 22a or the like of the opening toward the back side portion. However, instead of this, it may be formed so as to expand to one of the left and right sides from the inlet 22a of the opening toward the back side. When doing in this way, the convex part which the engaging part inserted in this concave part has a shape corresponding to the concave part, and expands to one side on the corresponding side as it goes from the base end part to the tip part. To form.

  In each of the above embodiments, as shown in FIG. 1A, the tip sickle portion 19 is formed at the tip portion of the saw portion 13, but the tip sickle portion 19 may not be provided.

  As described above, the attachment structure of the saw part and the sickle part and the saw with a sickle for high branching according to the present invention integrate the base end sickle part and the saw part with each other to increase the mutual engagement strength. By this, it has the outstanding effect that these base end sickle parts and saw parts can be firmly attached to the attachment part, and it is applied to such a saw part and sickle part attachment structure and a high-branch sickle-equipped saw. Suitable for

DESCRIPTION OF SYMBOLS 11 Saw with sickle for high pruning 12 Saw part and attachment structure of sickle part 13 Saw part 13a Saw tooth 14 Base sickle part 14a Sickle blade 15 Attachment part 15a Side plate 16, 18 Bolt 17 Operation pole 19 Tip sickle part 19a Sickle blade 20 Engagement Joint part 21 Engaged part 22 Concave part 22a Inlet part 23, 25 Locking edge part 24 Convex part 26 Lock mechanism 27 Arrow 28 Branch 30 Saw part and sickle part attachment structure 31 Engagement part 32 Engagement part 33 Concave part 33a Entrance part 34 Locking edge 35 Projection 36 Locking edge 38 Saw and sickle mounting structure 39 Engaging part 40 Engaged part 42 Saw and sickle mounting structure 43 Engaging part 44 Engaged Part 45 Concave part 45a Inlet part 46 Convex part 48 Saw part and sickle part attachment structure 49 Engaging part 50

Claims (6)

A plate-shaped saw portion having a saw blade formed at the edge portion, and can be fitted to a base end portion of the saw portion, and protrudes from the edge portion of the saw portion where the saw blade is formed, and the saw blade is formed. A base end sickle part having a sickle blade formed on the edge toward the side where the base end is facing, and the base end sickle part and the saw part are detachable with the base end sickle part fitted into the saw part In the attachment structure of the saw part and the sickle part, which is attached and the attachment part to which the operation pole is attached,
An engagement portion is formed in the base end sickle portion, and this engagement portion can be engaged with each other by being detachably fitted to an engaged portion formed in the saw portion,
In a state in which the engaging portion is fitted into the engaged portion, the base end sickle portion is locked so as not to move in any direction parallel to the plate surface of the saw portion. A structure for attaching a saw portion and a sickle portion, wherein a joint portion and the engaged portion are formed. The engaging portion is formed as having a convex portion or a concave portion, and the engaged portion is formed as having a concave portion or a convex portion,
The convex portion is formed so as to expand from the proximal end portion toward the distal end portion,
2. The mounting structure for a saw part and a sickle part according to claim 1, wherein the concave part is formed so as to expand from the entrance part of the opening toward the back side part. The convex portion is formed so as to expand on both sides as it goes from the proximal end portion to the distal end portion,
3. The mounting structure for a saw portion and a sickle portion according to claim 2, wherein the concave portion is formed so as to expand to both sides as it goes from the entrance portion of the opening toward the back side portion.   The saw part and the sickle part mounting structure according to any one of claims 1 to 3, wherein the saw part and the base end sickle part are detachably attached to the attachment part by bolts.   The tip portion of the saw portion is further provided with a tip sickle portion protruding from an edge portion where the saw blade of the saw portion is formed, and the tip sickle portion is directed to the side where the saw blade is formed. 5. The saw and sickle mounting structure according to claim 1, wherein a sickle blade is formed at the edge.   A saw with a sickle for high pruning, comprising the attachment structure for the saw part and the sickle part according to any one of claims 1 to 5, wherein the operation pole is attached to the attachment part.

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