JPH04924Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is based on the periphery of the cam with a handle attached to either the fan case or the medicine tank, and the abutment part attached to the medicine tank or the fan case. A chemical tank for a power spreader with a simple mechanism that allows the fan case and chemical tank to be placed in close contact with each other, making it possible to easily change between a fastened state and a relaxed state as needed. The present invention relates to a mounting device.

[Conventional technology]

When assembling a fan case and a chemical tank in a conventional power spreader, for example, as shown in FIG. ′
while inserting and sealing the fan case 1, inserting a bolt 5 through the upper part of the fan case 1 and the periphery of the discharge part at the lower end of the chemical tank 4, and tightening a nut 6 above. As shown in the figure,
The upper end of the fan case 11 is joined to the lower end of the drug tank 10, and as a result, the locking portion 12 provided on either the drug tank 10 or the fan case 11 (in this case, the drug tank 10) is engaged. Stopper 1
3 is removably exposed, and the medicine tank 10 and fan case 11 can be fastened or separated by rotating a lever 14 to which the locking piece 13 is movably connected.

[The problem that the idea attempts to solve]

In the case of () in the above-mentioned "Prior Art" section, since the chemical tank 4 and the fan case 1 are attached and detached by tightening or loosening the bolts 5, workers are required to perform cleaning, inspection, etc. It is hard to avoid feeling complicated in their movements, and Boruto 5 and Natsu 6 are separated.
There is also a problem that there is a risk of losing the information.

In addition, in the case of (), the degree of tightening between the chemical tank 10 and the fan case 11 cannot be adjusted,
Due to wear and tear on the packing, tolerances of parts, etc., the airtightness between the chemical tank 10 and the fan case 11 may be insufficient, resulting in the chemical leaking outside, and on the other hand, over-tightening may be required to maintain airtightness. Then,
As a result, the mutual contact part between the chemical tank 10 and the fan case 11 is damaged, and the worker accidentally inhales the chemical that flows out from this damaged area during spraying, resulting in a dangerous situation where the worker suffers chemical damage. There are some issues that may arise.

This invention was proposed in view of the above-mentioned problems, and its purpose is to support a cam with a rotatable handle on either side of the fan case or the chemical tank, and to attach the handle to the cam. By making it possible for the periphery of the cam to come into contact with the chemical tank or the abutment part on the fan case side with an appropriate degree of tightening depending on the rotational position of the cam, the rotation of the cam can connect the fan case and the chemical tank. It is an object of the present invention to provide a chemical tank attachment device for a power spreader that can be easily tightened or separated.

[Means for solving problems]

In order to achieve the above object, the chemical tank mounting device of the power spreader in this invention is set on the backpack frame,
The fan and the driving engine are arranged side by side on the side of the fan case housing the fan, and a chemical tank is placed above the fan case via a shutter case, and a bracket is fitted on the side of the shutter case. In a power sprayer, the center of a cam with a handle is rotatably supported on the fan case or a support shaft installed in the bottom end of the chemical tank, and the inside of the cam is Either of the outer peripheries is allowed to come into contact with a contact part attached to the chemical tank or the fan case, and the tightening force of the chemical tank to the fan case can be adjusted by the rotating position of the handle. be.

〔Example〕

Embodiments of this invention will be explained with reference to FIGS. 1 to 11.

First, in FIGS. 1 to 3 of the first embodiment, each of the support shafts d ₁ and d ₁ installed at a suitable position above the fan case C ₁ fixed on the backpack frame 21 has a flat cross section and surface. A ``''-shaped cam k ₁ is rotatably supported, and a handle h ₁ integrated _{with this cam k 1 is} formed to a desired length. An annular clamp made of highly elastic material
is provided, and the bulge _e1 protruding from the lower end of the drug tank _T1 placed on the shutter case G that clamps the clamping body n is fitted into the inside of the bracket _b1 via the set screw _j1 . A claw-like contact part q ₁ is fixed and bent toward the fan case C ₁ at the lower end of the bracket b ₁ .
The inner peripheral edge of the cam _k1 is slidably exposed, and the degree of compression of the clamping body n can be adjusted by rotating the handle _h1 , and as shown in FIG.
Hold the protruding piece T ₀ at the lower end of the drug tank T ₁ in the gap of b ₁ ,
A set screw _j1 may be passed through and fixed at this location.

In FIG. 4 of the second embodiment, the fan case
A handle h ₂ integrated with a cam k ₂ rotatably supported by a spindle d ₂ fixed above C ₂ is attached only to one side (the right side in this case), and the inner peripheral edge of this cam k ₂ is The lower end of tank T ₂ faces the abutment part q ₂ of bracket b ₂ integrally formed, while the bracket b ₂
Either cover and fix the other side (the left side in this case) with the bendable stopper piece 22 on the upper end of the fan case C ₂ , or as shown in Figure 5, cover and fix the other side with the bendable stopper piece ₂₂ on the upper end of the fan case C2 instead of the stopper piece 22. A protrusion 24 protruding from the lower end of the drug tank T ₂ may be fitted and tightly attached to the formed elliptical (circular or square) engagement piece 23.

In FIGS. 6 and 7 of the third embodiment, one side (the left side in FIG. 6) is attached to the bracket b ₃ fixed to the lower end of the drug tank T ₃ with a fastener j ₃ , as in the second embodiment. , a metal cam covered and fixed with a stopper piece 25 on the upper end of the fan case C ₃ and rotatably supported on a support shaft d ₃ planted on the other side (right side in Fig. 6).
The outer periphery of the cam k ₃ faces the contact part q ₃ of the bracket b ₃ so that it can come into contact with it, and it can also come into contact with the metal protrusion piece a ₃ that is integrally attached to the outer periphery of the cam k ₃ at a suitable location. in,
By installing a detent pin _p3 made of synthetic resin or rubber at a suitable position on the bracket _b3 , it is possible to prevent the cam _k3 from unexpectedly reversing.

In the case of the fourth embodiment shown in FIG. 8, a fastener j 4 such as a screw or a stud is attached to the outer periphery of a cam k ₄ with a metal handle _{h 4 made} of synthetic resin or an elastic material such as rubber. A protrusion piece a ₄ consisting of is fixed, and this protrusion piece a ₄
A detent pin made of metal that can come into contact with
This embodiment differs from the third embodiment in that p ₄ is implanted in a suitable position in the bracket b ₄ or the chemical tank T ₄ , but the other points are the same as in the third embodiment, so a description thereof will be omitted.

In FIGS. 9 and 10 of the fifth embodiment, the chemical tank
The upper end of the locking piece 26 is fixed to the bracket _{b 5 which} is fixed to the lower end of T ₅ with a fastener j ₅ such as a screw or rivet, and this locking piece 2
6 Contact part q ₅ bent toward fan case C ₅ side at lower end
The inner edge of the cam k ₅ with the handle h ₅ , which is rotatably held by the support shaft d ₅ installed above the fan case C ₅ , is exposed so as to be able to come into contact with it, while the outer edge of the cam k ₅ Gradually, a suitable number of protruding pieces _A5 of appropriate length and height are arranged side by side along the length, and each of these protruding pieces _A5 is attached to a detent pin _P5 planted in the appropriate position of the bracket B5 _. When engaged, the cam _k5 is prevented from unexpectedly reversing, and the first
In Figure 0, the counterclockwise rotation of the cam _k5 causes it to come into contact with the bracket _b5 , thereby making it possible to increase the tightening force of the drug tank _T5 to the fan case _C5 .

In FIG. 11 of the sixth embodiment, a support shaft d 6 is protruded and fixed to the outer circumferential edge of a bracket _{b 6 fixed} to the lower end of the drug tank T ₆ with a screw j 6, and a support shaft d ₆ is rotatably mounted on the support shaft d ₆ . While forming the handle _h6 integrally with the supported cam _k6 , the contact portion q6 of the locking piece 27 fixed (or detachable is also possible) above _the fan case _C6 ,
The inner peripheral edge of the cam _k6 is exposed so as to be able to come into contact with it.

In the figure, S is the shutter, M is the engine, 15,
28 and 29 are drug delivery tubes, respectively.

[action, effect]

In this invention, in the first embodiment, when the handle h ₁ is rotated to the left or right about the spindle d ₁ in FIG. 3, the cam k ₁ is simultaneously rotated in the same direction. , by pressing or loosening the abutment part q ₁ at the lower end of the bracket b ₁ , the tightening force of the chemical tank _{T 1 to} the fan case C ₁ via the bracket b 1 can be easily changed by changing the rotational position of the handle h ₁ . In addition, the bracket b ₁ can be easily removed from _the drug tank T 1 by removing the setscrew j ₁ , and the bracket b ₁ can be easily removed from the drug tank T 1 by removing the set screw j ₁ .
The chemical tank T ₁ and the fan case C ₁ can be easily separated by separating from the chemical tank T 1 and the fan case C 1, and inspection and cleaning are not complicated. Moreover, this attachment/detachment mechanism is extremely simple and requires only a small number of parts. It is easy to assemble and disassemble into tank T ₁ and fan case C ₁ , and can be manufactured at low cost. It also does not require the bolts and nuts used in conventional types to tighten, so there is no risk of loss. On top of that, tolerances and wear during the manufacturing of parts,
This has the practical benefit of being able to easily adjust the degree of tightening due to deformation etc. by changing the rotational position of the handle.

In the second embodiment, as in the first embodiment, by bringing the inner peripheral edge of the cam _k2 into contact with the contact portion _q2 of the bracket _b2 fixed on the drug tank _T2 ,
The degree of fastening of the chemical tank T ₂ to the fan case C ₂ can be adjusted, and in the third and fourth embodiments, the protrusions a ₃ and a ₄ are used to secure the brackets b ₃ and b, respectively. By pressing or relaxing the contact parts q ₃ and q ₄ of ₄ , the drug tank T ₃ ,
The tightness of T ₄ to fan cases C ₃ and C ₄ can be adjusted. The effects of each of these embodiments are the same as those of the first embodiment.

In the fifth embodiment, as described above in FIG. 10, depending on the rotational position of the cam _k5 , the contact between the protrusion piece _a5 and the abutment part _q5 of the bracket b5 is determined by the degree of contact between the protrusion piece a5 and the contact part _q5 of the bracket _b5 . The tightening force of the drug tank T ₅ to the fan case C ₅ can be adjusted, and the effects of this embodiment are similar to those of the first embodiment.

In the sixth embodiment, the cam _k6 , which is rotatably assembled to the bracket _b6 , is set by rotating the handle _h6 to a desired position, and the locking piece is attached to the fan case _C6 . The degree of fastening of the chemical tank T ₆ to the fan case C ₆ can be adjusted by abutting the contact portion q ₆ of the fan 27, and the effects of this embodiment are the same as those of the first embodiment.

[Brief explanation of drawings]

Fig. 1 is a partially cut away vertical sectional view of the first embodiment of this invention, Fig. 2 is an enlarged sectional view of a portion of Fig. 1, Fig. 3 is a view taken along the - line in Fig. 1, and Fig. 4. 5 is a partially cutaway sectional view of the main part of the second embodiment, FIG. 5 is a perspective view of the main part of the means for fixing the chemical tank to the fan case, which is different from that in FIG. 4, and FIG. 6 is a main part of the third embodiment. 7 is a front view of the cam with a handle of the same embodiment as above, FIG. 8 is a front view of the cam with handle of the fourth embodiment, and FIG. 9 is a main part of the fifth embodiment. A partial sectional view, FIG. 10 is a view taken along the - line in FIG. 9, and FIG.
The figure is a partially cutaway sectional view of the main part of the sixth embodiment.
FIG. 2 is a side view of a conventional power spreader, and FIG. 13 is a sectional view of a main part of the same according to another conventional type. C ₁ to C ₆ ... Fan case, T ₁ to _{T 6} ... Chemical tank, d ₁ to _{d 6} ... Support shaft, h ₁ to _{h 6} ... Handle, k ₁ to
k ₆ ... cam, q ₁ to q ₆ ... contact part.

Claims (1)

[Scope of utility model registration request] The engine for driving the fan is installed on the side of the fan case that is set on the backpack frame and houses the fan, and the chemical tank is placed above the fan case via a shutter case. In a power spreader in which a bracket that fits on the side is attached to the lower end of the chemical tank with a fastener, the support shaft installed in the fan cases C ₁ to _{C 5} or the chemical tank T ₆
The centers of cams k1 to _k6 with handles _h1 to _h6 are rotatably supported at _d1 to _d6 , and either the inner _or outer periphery of these cams _k1 to _k6 is connected to the drug tank. The contact parts q ₁ - q ₆ attached to T ₁ - _{T 5} or the fan case C ₆ can be brought into contact with each other, and the rotational positions of the handles h ₁ - _{h 6} can be used to control the chemical tanks T ₁ - _{T 6} . A chemical tank attachment device for a power spreader that allows adjustment of the tightening force to fan cases C ₁ to _{C 6} .