JPH067860U - Vibrator knob - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the knob is directly connected to the vibrator such as the engine or blower without using a complicated structure for not directly connecting the knob to the vibrator such as the engine or blower, Reduce vibration. A hollow cylindrical portion forming a knob portion at a tip portion of a rod member connected to a vibrating body, and a solid vibration absorbing rod portion substantially on a central axis of the hollow cylindrical portion are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a knob of a vibrating body used in a backpack-type power medicine sprayer or the like.

[0002]

[Prior art]

 The backpack-type power chemical sprayer carries a chemical tank, a fuel tank, a blower, etc. on the back via a backpack stand, and is operated with a jet pipe for spraying chemicals, and the amount of chemicals is adjusted by hand. In many cases, the adjustment knob is extended from the side to the front of the backpack type power chemical sprayer so that it can be adjusted. Since this adjusting knob is connected to the vibrator such as the engine or blower and extends from the side to the front of the backpack-type power chemical sprayer, the distance between the adjusting knob is long and the adjustment knob vibrates. This will amplify and transmit the vibration of the body, making the operator's finger numb to make adjustment work difficult, or amplifying the vibration of the entire backpack type power chemical sprayer to make noise by contact with other members. In some cases, the knobs are designed so that they are not directly connected to the vibration body such as the engine or the blower.

However, in the backpack-type power chemical sprayer, the fan case of the blower is vibrated by the vibration of the engine, and the blower and the engine are relatively heavy. It has a complicated structure that is attached to a backpack mount. Therefore, the structure in which the knob is not directly connected to the vibration body such as the engine or the blower not only complicates the structure of the backpack-type power chemical sprayer, but also disassembles and assembles the backpack-type power chemical sprayer. However, there were problems such as making it difficult, making maintenance and inspection troublesome, and making adjustments with the knobs less accurate.

[0004]

[Problems to be solved by the device]

 Therefore, the present invention reduces the vibration of the knob by directly connecting the knob to the vibrator of the engine or blower without using a complicated structure in which the knob is not directly connected to the vibrator of the engine or blower. The purpose is to provide a knob for the vibrating body.

[0005]

[Means for Solving the Problems]

 The knob of the vibrating body according to the present invention comprises a hollow cylindrical portion forming a knob portion at the tip of a rod member connected to the vibrating body, and a solid suction member substantially on the central axis of the hollow cylindrical portion. And a swing bar portion.

[0006]

[Action]

 Therefore, the knob of the vibrating body according to the present invention has a simple structure formed by the hollow cylindrical portion forming the knob portion and the solid vibration absorbing rod portion substantially on the central axis of the hollow cylindrical portion. Like the conventional knob, it can be easily attached by screwing or adhering through the lock nut to the tip of the rod member that is connected to, and giving a range of choice in shape and material. You can also

[0007]

【Example】

 The present embodiment relates to a backpack-type power chemical sprayer whose entire perspective view is shown in FIG. 1, and relates to a backpack-type power chemical sprayer, which is mounted on the tip of the throttle lever and throttle lever. Is attached via a vibration isolating member 3, and a fuel tank 4 is provided at the lower portion thereof and a drug tank 5 is provided at the upper portion thereof. A throttle lever 6 and a metering lever 7 are provided in parallel on the side of the backpack type power medicine sprayer so as to project forward from the metering scale plate 13 and these slot lever 6 and metering lever 7 are provided. The knobs 8 according to the present invention are attached to the tips of 7 and 7, respectively.

FIG. 2 is a cross-sectional view of a knob 8 according to the present invention, which is screwed to a threaded portion 9 at the front ends of the levers 6 and 7 via a lock nut 10. The knob 8 includes a hollow cylindrical portion 11 on the outer peripheral portion forming the knob portion and a solid vibration absorbing rod portion 12 on the substantially central axis inside the hollow cylindrical portion, and is made of a metal such as zinc alloy having a large specific gravity. It is made of material. The hollow cylindrical portion 11 and the solid vibration absorbing rod portion 12 have a constant length according to the vibration of the vibrating body, and the vibration of the knob portion is particularly small. The solid vibration absorbing rod portion 12 can be formed by extending the screw portion 9 of the levers 6 and 7 as it is.

In order to compare the vibration of the knob 8 with and without the solid vibration-absorbing rod portion 12, the engine speed is increased from the low speed range to reach the normal rotation range, and then the low speed range is restarted. When the vibration value at each rotation speed was measured, the value decreased by nearly 40% in the embodiment of the present invention, and it was possible to set the vibration range of 8 parts of the knob which the operator does not feel uncomfortable.

[0010]

[Effect of device]

 As is clear from the above description, according to the configuration of the present invention, a simple hollow tube portion forming the knob portion and a solid vibration absorbing rod portion substantially on the central axis of the hollow tubular portion are formed. With the structure, the vibration from the vibrating body can be canceled by the mass of the knob and the hollow cylinder, and the transmission of the vibration to the hollow cylinder that forms the knob can be prevented. Even if the knob is directly connected to the vibrator, such as an engine or a blower, without using a complicated structure that is not directly connected to the body, it is possible to provide the knob of the vibrator that can reduce the vibration of the knob.

[Brief description of drawings]

FIG. 1 is a perspective view of a backpack-type power medicine spraying machine.

FIG. 2 is a cross-sectional view of a knob according to the present invention.

[Explanation of symbols]

 6 Throttle lever (bar member) 7 Metering lever (bar member) 8 Knob 9 Screw part (tip part) 10 Lock nut 11 Hollow cylinder part 12 Solid vibration absorbing rod part

Claims (1)

[Scope of utility model registration request] 1. A rod member (6, 6 connected to a vibrating body).
7) A hollow cylindrical portion (11) forming a knob portion at the tip portion (9) and a solid vibration absorbing rod portion (12) substantially on the central axis of the hollow cylindrical portion. The knob of the vibrating body.