JPS5922285Y2 - Tiller air intake spout - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a breath odor that is attached to the tip of an air suction hose of an air cleaner that extends to the vicinity of the handle at the rear of a tiller, particularly a hand-held tiller.

Usually, the air cleaner of a hand-held tiller has an air suction hose attached to it, and an elbow-shaped breather is fitted at the end. This is to prevent dust flying up near the cultivated land being plowed by the blade from being sucked in, thereby preventing the air cleaner's air purifying function from deteriorating.

However, the conventional means for connecting an air suction hose and a halitosis tube simply involves inserting the halitosis base into the distal end of the hose, and the halitosis tube has a smooth surface, resulting in the following drawbacks.

In other words, in order to prevent the halitosis from easily separating from the hose, the inner diameter of the hose and the outer diameter of the halitosis are made to almost match, thereby increasing the tightness of fitting the hose against halitosis. Insert the base <<
,It takes time and effort.

(2) Therefore, in order to insert the halitosis base into the end of the hose, it is necessary to apply a smooth insertion agent such as oil to the halitosis base. If applied, the halitosis will rotate due to the vibration of the tiller, which will have the opposite effect, and the direction of the halitosis tip will change. Because there is a risk that the breath may change or the bad breath itself may fall off, a clamp was required.

The present invention has been devised in view of the above-mentioned problems, and its configuration will be explained below based on the accompanying drawings.

Figure 1 shows the side view of a hand-held power cultivator, which consists of main components such as a prime mover 1, a tiller handle 2, and a tiller blade 3.The prime mover includes an air cleaner 4 and a flexible spiral for air suction. It is equipped with a hose 5 and a halitosis 6 for air inhalation.

Figure 2 is an enlarged plan view of the halitosis for air suction, Figure 3 is a sectional view taken along the A-A green ribbon in Figure 2, and Figure 4 is a bottom view of the halitosis. A spiral protrusion 7 that fits into the spiral groove on the inner wall of the spiral flexible hose is formed in the vicinity of this protrusion to regulate the length of the spiral flexible air suction hose that fits into the bad breath. The stopper protrusion 8 is a spiral protrusion 7
Two spiral protrusions are formed on the outside with different pitches, and an air suction port 9 is formed at the tip of the halitosis.

Here, the reason why the stopper protrusion 8 is provided on the outside (on the right side in FIGS. 2 to 4) of the spiral protrusion 7 rather than on the inside is that if the stopper protrusion 8 were to be provided on the left side of the spiral protrusion 7, When the stopper protrusions 8 are provided, the stopper protrusions 8 are provided at two locations perpendicular to the outer diameter of the air suction halitosis 6, and since the stopper protrusions 8 are not spiral-shaped, the air suction spiral flexible hose 5 is placed first. This is because the stopper protrusion 8 rides on the stopper protrusion 8, so there is an inconvenience that the screw cannot be twisted all the way to the spiral protrusion 7.

The reason why the stopper protrusions 8 are provided at a different pitch from the spiral protrusions is that when the stopper protrusions 8 are arranged at the same pitch as the spiral protrusions 7, the spiral flexible hose 5 for sudden suction This is because there is nothing to stop it, so it is twisted until it rides on the R part of the air-breathing halitosis 6, so a strong connection cannot be expected, and there are disadvantages such as the screwing length cannot be made constant.

However, in this case, the connection between the air suction hose and the bad breath can be easily achieved by twisting the bad breath base into the tip of the hose, sliding the protrusion along the spiral groove of the hose, and bringing the stopper protrusion into contact with the edge of the hose tip. can be done.

Since the present invention is configured as described above, a protrusion that matches the shape of the spiral groove of the air suction hose is formed on the halitosis base, so that just by twisting the halitosis base to the end of the hose as described above, the halitosis can be removed from the hose. Since it can be firmly bonded, the halitosis can be installed easily without applying a smooth insertion agent such as oil around the base of the halitosis as in the past.

In addition, since no smoothing agent is used, the halitosis does not rotate due to the vibration of the cultivator, and not only is no clamp required, but the direction of the air suction port at the tip of the halitosis can always be maintained in a constant direction.

In addition, two stopper protrusions are provided for the halitosis, so when the halitosis base is twisted into the hose tip when connecting the hose and the halitosis, the edge of the hose end comes into contact with the stopper protrusions, making it impossible to twist the hose any further. However, this not only allows you to confirm that the bad breath does not easily separate from the hose but is firmly attached to it, and since the length of the bad breath being twisted into the hose is also constant, it is possible to determine the distance from the air cleaner to the tip of the bad breath. It can be arranged uniformly.

Moreover, since there are only two stopper protrusions, when the hose is twisted in, the hose tip slightly rides on these two protrusions and is firmly connected, so that bad breath does not easily escape from the hose.

(If these stopper protrusions are provided around the entire circumference, the hose tip will not ride on these protrusions, and therefore a strong connection cannot be expected.

)

[Brief explanation of drawings]

Figure 1 is a side view of the cultivator, Figure 2 is a plan view of the bad breath, and Figure 3 is a side view of the cultivator.
The figure is a longitudinal sectional view taken along the line A-A in FIG. 2, and FIG. 4 is an enlarged bottom view of bad breath. 1... Prime mover, 2... Tiller handle, 3... Tilling blade, 4... Air cleaner, 5... Air suction spiral flexible hose for use, 6... bad breath for air inhalation, 7... spiral protrusion strip, 8... protrusion for stopper, 9
...Air intake port.

Claims (1)

[Scope of utility model registration request] A spiral protrusion that fits into the spiral groove of the hose is formed at the base of the halitosis, which is inserted and attached to the tip of the air suction hose of the air cleaner that extends to the vicinity of the handle at the rear of the tiller in a hand-held tiller. The breath odor for air suction of a tiller is characterized in that stopper protrusions are provided at two locations on the outside of the protruding strips at different pitches from the spiral protruding strips.