JP4281945B2 - Work implement - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to the implement having a grayed-liter flop movable in the length direction of the rod-shaped operating handle.
[0002]
[Prior art]
As an example of a work tool having a rod-like long operation rod, a power-driven vibration fruit dropping machine for harvesting fruits such as plum fruit and olive fruit is known. The operator supports the long operation rod upward with both hands, hooks the hook at the tip of the operation rod onto the branch of the fruit tree, and holds the hook with the power from the power generation unit held on the shoulder or on the back. Shake the fruit off the branch.
[0003]
On the base end side of the operating rod, two upper and lower grips formed of an elastic body such as an anti-vibration rubber are fixed at an appropriate interval between each other so that the operator can easily grip. .
[0004]
By the way, since the upward angle of the operating rod in use changes according to the height position of the branch, etc., the position of the center of gravity changes accordingly. Therefore, the operator usually supports the operating rod in a state where the distance between both hands is widened or narrowed according to the upward angle of the operating rod.
[0005]
For this reason, conventionally, even if the grip position of the operating rod is changed, the operator can always work while holding the grip so that it is 2 to 5 times the minimum required length. The formed grip was used as the upper grip (see, for example, Patent Document 1).
[0006]
[Patent Literature]
Japanese Utility Model Publication No. 2-5709 [0007]
[Problems to be solved by the invention]
However, in the conventional method, the material cost and the like are increased, and the weight of the entire operation rod including the grip is increased, so that the operability is deteriorated and the fatigue of the operator is increased. is there.
[0008]
The present invention has been made in view of the above-mentioned circumstances, saves material costs and the like, and can suppress the increase in weight of the total, the present invention is to provide a work tool has good operability It is.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a work tool according to the present invention moves in the length direction of the operation rod in a state of being attached to the operation rod and a rod-shaped operation rod that is gripped by an operator to perform a predetermined work An anti-vibration grip, and the grip has an elastically deformable grip body that can be fixed so as to be immovable by being pressed against the operating rod by the grip force of the operator, An outward projecting portion that intersects the length direction of the operating rod that contacts the operator's hand that is moved along the length direction of the operating rod in a state in which the grip force to the grip body is released is integrated (Claim 1).
[0011]
Prior Symbol implement, the operator, when grips the grip body, in the grip, the grip body is deformed and pressed against the operating rod. Thereby, the grip body is fixed to the operating rod so as not to move. When the operator releases the gripping force on the grip body, the grip body returns to its original state by the elasticity of the grip body, and can move in the length direction of the operation rod. Therefore, the operator can always operate the operating rod by grasping the grip by moving the position of the grip according to the change of the grip position of the operating rod. According to the present invention, in addition to the grip body, Runode sufficient if only the minimum required length corresponding to the palm of the operator, the material cost for forming the grip can be saved, the grip It can also contribute to weight reduction of work tools including
[0012]
Further, according to the present invention, the operator, when moving the position of the front Kigu lip in the operating桿上, while releasing the grip to the grip body, along a longitudinal direction of the operating rod Move your hands. Thus, the projecting portion is integral with the grip body, because the contact with the hand of the operator, the position change operation of the front Kigu lip, can be performed easily and reliably.
[0013]
Further, the presence of the overhanging portion makes it easy to perceive the position of the grip even by groping when the operator once removes the hand from the grip and then grips the grip again. Therefore, it is not necessary to look at each hand during a predetermined work performed using the operation rod, and workability is improved.
[0014]
As a form of preferred embodiment, the overhang, addition can be formed at both ends of the grip body in the length direction of the operating rod, Ru can be formed only on one end portion of the grip body.
[0015]
For example, in the case of work using the operating rod facing upward, the operator simply releases the gripping force of the hand gripping the grip body, and the grip is lowered by its own weight along the operating rod. Displace. For this reason, it is not always necessary to dispose the projecting portion at both ends of the grip body, and only the one end portion (upper end portion) of the grip portion is used when the grip is moved upward. It can also be arranged.
[0016]
Another embodiment of the present invention may be a work tool configured as follows.
[0018]
That is, a work tool having a rod-shaped operation rod for an operator to hold and perform a predetermined work, and a vibration-proof grip that is movable in the length direction of the operation rod when attached to the operation rod. The grip has a cylindrical grip that has an operating rod insertion hole having a size that can accept the operating rod with play and is elastically deformable to press against the operating rod with the gripping force of the operator. A work tool that integrally includes a main body and a flange portion formed at least at one end of the grip main body in the length direction of the operation rod (claim 2 ).
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of the invention will be described with reference to the accompanying drawings.
[0020]
FIG. 1 is a perspective view showing an overall configuration and a use state of a power type fruit dropping machine 1 which is a working tool according to an embodiment of the present invention. The fruit dropping machine 1 can be used for, for example, a vibration harvesting operation of a fruit M such as a plum fruit or an olive fruit.
[0021]
The fruit dropping machine 1 is provided with a rod-shaped operation rod 2 that can be expanded and contracted according to the height of the fruit tree. A hook 4 for hooking onto a fruit tree branch T via a gear box 3 is connected to the distal end portion 2a of the operating rod 2 so as to freely reciprocate linearly along the length direction XX of the operating rod 2. Has been.
[0022]
On the other hand, a prime mover 6 such as a small air-cooled two-cycle gasoline engine or an electric motor is connected to the base end 2b of the operation rod 2 via a flexible shaft 5 for driving. The prime mover 6 is a backpack type or a shoulder-holding type so as to be suitable for carrying work. The rotational driving force by the prime mover 6 is transmitted to the gear box 3 through the flexible shaft 5 and the transmission shaft 2c inserted into the hollow operation rod 2. Within the gear box 3, the rotation of the transmission shaft 2c is converted into a linear reciprocating motion little by little. As a result, the hook 4 is driven to vibrate in small increments along the length direction XX of the operating rod 2.
[0023]
On the base end 2b side of the operation rod 2, there are two upper and lower vibration-proof grips 7 and 8 formed of an elastic body such as rubber for vibration prevention and for easy gripping of the operation rod 2. Is arranged. The lower grip 8 among them is fixed to the operation rod 2 so as not to move. A throttle lever 9 is disposed above the lower grip 8 as an output control member of the prime mover 6. On the other hand, the detailed configuration and operational effects of the upper grip 7 will be described later.
[0024]
The operator (operator) P of the fruit dropping machine 1 holds the two upper and lower grips 7 and 8 with their respective hands to support the operation rod 2 upward, and hooks the hook 4 on the branch T of the fruit tree. Then, the throttle lever 9 is operated with a finger. As a result, the hook 4 is vibrated in small increments along the length direction X of the operation rod 2 and the branches T vibrate moderately. It can be harvested by shaking it well.
[0025]
By the way, since the upward angle of the operating rod 2 in use changes according to the height position of the branch T, the position of the center of gravity of the operating rod 2 changes accordingly. Therefore, the operator P is used in a state in which the distance between both hands is widened or narrowed according to the upward angle of the operating rod 2 so that the operating rod 2 can always be stably supported. It is normal. However, when both of the two grips 7 and 8 are fixed to the operation rod 2 in a predetermined position in advance, the operator P can change the operation rod 2 when the distance between both hands is changed. It is necessary to work by directly gripping the part without the anti-vibration grip. Therefore, in the present embodiment, regardless of the change in the spacing of the hands gripping the front Symbol joystick 2, so that the work can be performed at all times by gripping both of the two grips 7 and 8.
[0026]
Next, with reference to FIG. 2 thru | or FIG. 4, the said upper side grip 7 which comprises the working tool which concerns on suitable embodiment of this invention is demonstrated in detail. 2 is a partially cutaway side view showing the upper grip 7 in FIG. 1 in a horizontal state, FIG. 3 is a sectional view taken along the line III-III in FIG. 2, and FIG. 4 is another embodiment of the upper grip 7. It is a partially notched side view which shows the form.
[0027]
As shown in FIG. 2, before Symbol upper grip 7, in the mounted state to the operating rod 2, a grip for a movable image stabilization in the longitudinal direction X-X of the operation rod 2. The grip 7 is provided with a grip body 10 for the operator P to grip with the hand. The grip body 10 is elastically deformable so as to be fixed so as not to move by being pressed against the operation rod 2 by the grip force of the operator P.
[0028]
Specifically, the grip body 10 has a cylindrical shape having an outer peripheral surface 11 suitable for the operator P to grip. The grip body 10 has an operation rod insertion hole 13 having a size capable of receiving the operation rod 2 having a cylindrical outer peripheral surface 12 in the presence of play C. The size of the play C is the same as that of the operation rod 2 when the grip force to the grip body 10 is released so that the grip body 10 can be more securely pressed against the operation rod 2 when the grip body 10 is gripped. It is desirable that the gap be in a very small range that allows smooth movement along.
[0029]
The outer diameter of the grip body 10 can be set to an appropriate size so that the operator P can easily grip the outer peripheral surface. In the present embodiment, a number of ridges 14 extending along the length direction XX of the operation rod 2 are formed on the outer peripheral surface 11 of the grip body 10 as a slip stopper. In addition, the length of the grip body 10 is, for example, 15 to 18 cm in consideration of ease of gripping by the operator P and possible weight reduction of the entire operation rod 2 including the grips 7 and 8. For example, the length may be an appropriate length that is not too long.
[0030]
The grip body 10 can be formed using an elastic material such as rubber by an appropriate molding method known per se, such as a compression molding method or an injection molding method. Among them, in particular, when produced using rubber with good sliding wear resistance and weather resistance, such as ethylene-propylene rubber, and low specific gravity, it is suitable for long-term outdoor use, and because it is lightweight, portable workability is also good. Is preferred.
[0031]
When the worker P grips the outer surface 11 of the grip body 10, the grip body 10 is deformed by the gripping force, and the inner peripheral surface 15 of the operation rod insertion hole 13 has a large area and the operation rod 2 has a large area. since pressure of the outer peripheral surface 12, before Kigu lip 7 is immovably fixed relative to the operating rod 2 only hold lightly. On the other hand, when the operator P releases the gripping force applied to the grip body 10, the grip body 10 returns to its original shape due to its elasticity, and the outer peripheral surface 12 of the operation rod 2 and the operation The play C returns between the inner peripheral surface 15 of the scissors insertion hole 13. Thereby, the position of the grip body 10 can be changed along the length direction XX of the operation rod 2. Thus, the operator P, the operating rod before in accordance with the change of the gripping position of the 2 by moving the position of Kigu lip 7 vertically, the operation always hold both the two grips 7 and 8 The operation of 桿 2 can be performed.
[0032]
The front Kigu lip 7 is in contact with the hand H of the operator P to be moved along the length direction X-X of the operating rod 2 while releasing the grip to the grip body 10, the operation An outward projecting portion 16 that intersects the longitudinal direction XX of the ridge 2 is provided. In the present embodiment, flange portions 16 a and 16 b are formed at both end portions 10 a and 10 b of the grip body 10 as the overhang portion 16. In the example of FIG. 2, the flange portions 16 a and 16 b are formed integrally with the grip body 10 using the same material as the grip body 10. However, the flange portions 16a and 16b are formed separately from the grip body 10 and attached to the grip body 10 afterwards using an appropriate fixing means such as a screw or an adhesive. It may be a thing. Further, the overhanging portion 16 does not necessarily have to protrude over the entire periphery of the grip body 10 and may protrude outward from only a part of the outer periphery of the grip body 10.
[0033]
The operator P is, in order to change the position of the front Kigu lip 7 on the operating rod 2, while releasing the grip to the grip body 10, along the length direction X-X of the operating rod 2 The hand H may be moved. Thus, the grip body 10 and the flange portion 16a which is integral, 16b is, since the contact with the hand H of the operator P, before the position change operation of Kigu lip 7 easily and reliably It can be carried out.
[0034]
For example, added before the Kigu lips 7, when the position change operation to the distal end portion 2a of the operating rod 2, by releasing the grip to the grip body 10, the hand H into the grip body 10 The operating rod 2 is moved in the direction of the distal end portion 2a while being left. Since the index finger or thumb of the hand H in this case is, comes into contact with the said tip-side flange portion 16a, a pre Kigu lip 7, reliably slides into the distal end portion 2a direction of the operating rod 2 Can be displaced.
[0035]
Conversely, the pre Kigu lips 7, when the position change operation to the base end portion 2b side of the operating rod 2, by releasing the grip to the grip body 10, the grip body and the hand H 10, the operating rod 2 is moved in the direction of the base end 2 b. Pinky or palm of the end face of the hand H in this case is, since the contact with the base end side flange portion 16b, and front Kigu lip 7, certainly sliding into the proximal end 2b direction of the operating rod 2 It can be displaced dynamically.
[0036]
Further, in this embodiment, the flange portion 16a, the provision of the 16b, the operator P is, before Kigu lip 7 After releasing one end hand H, when gripping the front Kigu lip 7 again The position of the grip 7 can be easily perceived by hand search without visual observation. Therefore, it is not necessary to look at each hand during the fruit removal work, and workability is improved.
[0037]
The overhanging amount e of the flange portions 16a and 16b is an appropriate overhanging amount within a range necessary for performing the above action so as not to obstruct the operator P holding the grip body 10. Is desirable.
[0038]
Further, as shown in FIG. 1, the fruit dropping machine 1 is usually used with the operation rod 2 facing upward, so that the operator P only releases the gripping force on the grip body 10. , before Kigu lip 7 can be lowered by its own weight along the operating rod 2. Therefore, before Kigu lip 7 it is not necessarily provided with the flange portion 16a, 16b upper and lower end portions 10a, both of 10b of the grip body 10, as shown in FIG. 4, the grip body 10 Only one end, that is, the upper end 10a of the grip body 10 may be provided with the flange portion 16a.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration and a usage state of a power type fruit dropping machine which is a working tool according to an embodiment of the present invention.
FIG. 2 is a partially cutaway side view showing the movable anti-vibration grip in FIG. 1 in a horizontal state.
3 is a cross-sectional view taken along arrow III-III in FIG.
FIG. 4 is a partially cutaway side view showing another embodiment of a movable anti-vibration grip.
[Explanation of symbols]
1 Work implement (powered fruit remover)
2 Operation rod 7 Movable anti-vibration grip 10 Grip body 10a, 10b Grip body end 16 (16a, 16b) Overhang (flange)
C Play H Hand P Operator XX Length of operation rod

Claims (2)

  A rod-shaped operating rod (2) for the operator (P) to hold and perform a predetermined work, and the length direction (XX) of the operating rod (2) in the state of being attached to the operating rod (2) An anti-vibration grip (7) that is movable to the operating tool (1), wherein the grip (7) is pressed against the operating rod (2) by a gripping force of the operator (P). A grip body (10) having elastic deformability that can be fixed so as to be immovable, and along the length direction (XX) of the operating rod (2) in a state in which the gripping force to the grip body (10) is released And an outwardly projecting portion (16) that intersects the length direction (XX) of the operating rod (2) that contacts the hand (H) of the operator (P) that is moved in an integrated manner. Work tools.   A rod-shaped operating rod (2) for the operator (P) to hold and perform a predetermined work, and the length direction (XX) of the operating rod (2) in the state of being attached to the operating rod (2) A work tool (1) having an anti-vibration grip (7) that can be moved to a position, and the grip (7) is large enough to accept the operation rod (2) with play (C). A cylindrical grip body (10) having an elastic deformability that has an operating rod insertion hole (13) and is pressed against the operating rod (2) by the grip force of the operator (P), and the operating rod (2 And a flange portion (16a) formed at least at one end portion (10a) of the grip body (10) in the longitudinal direction (XX).

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