JPH0630214U - Snow removal chute control lever for snow blower - Google Patents

Abstract

(57) [Abstract] [Purpose] The motor of the chute of the snow blower is rotated only to the left and right, and the angle of the chute cap is manually adjusted via a wire or rod. It is configured such that one unit can be operated steplessly at any position. A chute rotation switch S is arranged at the base of the chute operation lever 9, and the chute rotation switch S is switched by the left and right rotation of the chute operation lever 9 to operate the chute rotation motor 16 to remove snow. The chute 1 is pivoted to the left and right, the lever mounting plate 21 having the chute pivoting switch S mounted thereon is pivotally supported on the pivot shaft 24, and the chute operating lever 9 pivots the lever mounting plate 21 back and forth to move the chute operating wire. The chute cap 2 pivotally supported on the tip of the snow chute 1 is configured to be rotated up and down via 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lever structure and its mechanism for operating a snow removal chute of a snow remover.

[0002]

[Prior art]

 In the conventional snow blower, the following technologies are known to operate the snow chute. Japanese Utility Model Publication No. 64-2170, "Operating lever device", Japanese Utility Model Laid-Open No. 4-12529, "Snow removal machine", Japanese Utility Model Laid-Open No. 4-53820, "Snow removal tube operating device", and Japanese Unexamined Patent Publication No. 2-19505 "Snow removal system". "Snow chute drive device", "Kaikaihei 3-58326" Snowplow angle adjusting device "," Shokai 63-81920 "" Snow chute operating device for snowplow "", "Shokaisho" 57-197512 "swing angle control device for turning snow".

However, in the prior art, the turning of the snow chute to the left and right and the vertical angle adjustment of the chute cap for changing the snow discharge angle are performed electrically with a single operating lever. It was configured like this. Therefore, an electric switch was arranged for each of the chute turning rotation and the chute cap vertical angle adjustment, and it was operated by a motor or cylinder. With such a structure, the cost is high. There is also a conventional technique in which the snow removal shoe is rotated to the left and right by a motor, and the angle of the chute cap is adjusted manually via a wire, but in this case, the operation is performed to adjust the angle of the chute cap. It was necessary to provide a guide or the like on the lever so that it could be adjusted stepwise, that is, at a fixed position. Therefore, there is a drawback that the desired angle adjustment cannot always be performed because the adjustment is performed only at the position determined by the guide in advance.

[0004]

[Problems to be solved by the device]

 In order to remedy the above drawbacks, the present invention drives the motor only for turning the chute to the left and right, and manually adjusts the angle of the chute cap through a wire or a rod. With one lever, it can be operated steplessly at any position.

[0005]

[Means for Solving the Problems]

 The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, the chute rotation switch S is arranged at the base of the chute operation lever 9, and the chute rotation switch S is switched by the lateral rotation of the chute operation lever 9 to operate the chute rotation motor 16 and The snow chute 1 is rotated right and left, the lever mounting plate 21 having the chute rotating switch S mounted thereon is pivotally supported on the pivot shaft 24, and the chute operating lever 9 pivots the lever mounting plate 21 forward and backward to operate the chute. The chute cap 2 pivotally supported on the tip of the snow chute 1 is configured to rotate up and down via the wire 3.

[0006]

[Action]

 As shown in FIG. 8, when the chute operating lever 9 is tilted in the left and right directions of A and B, the chute operating lever 9 is tilted above the lever support base 20 in FIG. 4, and the internal chute rotation switch S is turned on. As a result, the power of the motor 16 is turned on, and the pinion or worm of the motor 16 and the rack at the base of the chute 1 meshing with the pinion rotate in the normal or reverse direction. That is, only while the stow operation lever 9 is tilted, the shoot 1 continues to rotate in the direction corresponding to the tilted side. Further, since the chute operation lever 9 does not fall down when it is rotated in the front-rear direction of C and D, the chute operation wire 9 is rotated together with the lever base 20 and the lever mounting plate 21 at the fulcrum pin 24 to pull the chute operation wire 3 or By pushing, as a result, the snow throwing angle of the shoot cap 2 can be adjusted.

[0007]

【Example】

 Next, examples will be described. 1 is an overall perspective view of the snow blower, FIG. 2 is a rear view of the traveling handle 6 and the operation panel 5, FIG. 3 is a perspective view showing a lower portion of the operation panel 5, and FIG. 5 is a perspective view of the lower part of the operation panel 5, FIG. 6 is a detailed rear view of a portion of the chute operating lever 9 and the chute rotation switch S, and FIG. 7 is an exploded view of a pivotal support portion of the chute operating lever 9. FIG. 8 is a perspective view showing the entire vertical movement of the chute cap 2 by the chute operation lever 9 and the turning operation of the snow removal chute 1.

This will be described with reference to FIG. FIG. 1 illustrates the right side surface of the snow blower. A body frame is arranged on the crawler type traveling unit 14, and an engine unit 12, a battery 15, an auger unit 13 and the like are arranged on the body frame. A blower is arranged between the auger section 13 and the engine section 12, and a snow removal chute 1 is projected from the chute section cover 11 covering the upper part of the blower so as to be pivotable right and left. . A chute cap 2 is pivotally supported on the upper end of the snow chute 1 so as to be vertically rotatable.

An operation panel 5 is provided at the rear of the engine section 12, and a chute operation lever 9, a travel continuously variable transmission lever 8, a travel clutch lever 7, and an auger blower clutch lever 10 are provided on the operation panel 5. It is arranged. Two rectangular traveling handles 6 project rearward from the operation panel 5. A chute rotating motor 16 is provided inside the chute cover 11. Although two operating wires 3 and 3'are provided in this embodiment, the wire 3 alone may be used. The chute operating wire 3 ′ is a returning wire, and may be only the chute cap returning spring 4.

In FIG. 2, a portion of the operation panel 5, a traveling clutch lever 7, a traveling continuously variable transmission lever 8, a chute operating lever 9, and an auger blower clutch supported or pivotally supported by the operation panel 5. The lever 10 and the engine start switch 17 are shown. A lever fulcrum shaft 18 supported and fastened to the frame portion is provided, and a rotatably mounted traveling clutch lever 7 and a link portion for connecting and disconnecting the traveling portion to the traveling clutch lever 7 connected to the lever fulcrum shaft 18 are provided. Similarly, a link for connecting the traveling continuously variable transmission lever 8 to continuously change the traveling speed, a link portion for connecting to the auger / blower clutch lever 10 for turning the auger / blower "on / off", and an accelerator lever 19 A wire or the like for adjusting the engine rotation is pivotally supported or attached.

The structure of the chute operating lever 9 of the present invention will be described in detail. The chute operation lever 9 shown in FIG. 4 has a chute rotating switch S for rotating the chute driven by a motor integrally formed at the lower end, and is attached to the lever support base 20. It is fastened to the mounting plate 21 with bolts. The lever mounting plate 21 may be bent integrally and the chute operating lever 9 may be directly assembled.

Reference numeral 33 denotes an electric harness for rotating the chute. Further, the chute operating wire 3 is attached to the welded rivet on the lever mounting plate 21. An outer receiver 31 for mounting the chute operating wire 3 and a nut 32 are fixed to the fulcrum pin 24. The lever mounting plate 21 is attached to the plates 23, 23 and 23 'which are fixed to the lever fulcrum shaft 18 by welding, and the fulcrum pins 24 which are further fixed to the lever fulcrum shaft 18 by welding.

The fulcrum pin 24 has a threaded portion formed at its tip, and this threaded portion constitutes a cut surface. The lever mounting plate 21 is attached to the screw portion by friction plates 25, 25, plain washers 26, 26, disc springs 27, 27, and nuts 28, 28. The friction plates 25 may be attached to the plate 23 and the flat washer 26. The flat washers 26, 26 have a hole at the center corresponding to the shape of the cut surface of the fulcrum pin 24 so that they cannot rotate. The collars 29 and 29 and the plain washers 30 and 30 and 30 are dimension adjusting members for positioning the traveling clutch lever 7 and the auger-blower clutch lever 10.

In FIG. 7, the lever mounting plate 21 is sandwiched by two plain friction washers 26, 26 and flat springs 27, 27 from the left and right by two friction plates 25, 25, and tightened and locked by nuts 28, 28. . The tightening force has sufficient resistance against the tensile load of the chute cap return spring 4 of the chute operating wire 3 and is tightened with an appropriate pressure for operating the lever. The chute operation lever 9 is held at an arbitrary position by the frictional force. The plate vanes 27, 27 cover the friction plates 25, 25 with their spring force to reduce the frictional force caused by the sliding and the "compatibility".

[0015]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. That is, firstly, the rotation of the chute and the angle of the chute cap can be adjusted with one operation lever, and at the same time, the snow throwing direction can be adjusted quickly. In addition, since the guides and other regulatory parts are no longer needed, it is possible to adjust the shoot cap angle to the desired one.

Secondly, since only the turning of the snow removal chute 1 is driven by a motor and the angle of the chute cap is adjusted by a wire, not only the cost is lower than that of the electric one but also the same effect can be obtained.

[Brief description of drawings]

FIG. 1 is an overall perspective view of the snow blower of the present invention.

FIG. 2 is a rear view of a traveling handle 6 and an operation panel 5.

FIG. 3 is a perspective view showing a lower portion of an operation panel 5.

FIG. 4 is a perspective view of a lower portion of a chute operating lever 9.

FIG. 5 is a perspective view of the lower portion of the operation panel 5, similarly.

6 is a detailed rear view of a portion of a chute operating lever 9 and a chute rotation switch S. FIG.

FIG. 7 is an exploded perspective view of a pivotal support portion of the chute operating lever 9.

FIG. 8 is a diagram showing the entire vertical movement of the chute cap 2 by the chute operation lever 9 and the turning operation of the snow removal chute 1.

[Explanation of symbols]

 S Shoot rotation switch 1 Snow removal chute 2 Shoot cap 3 Shoot operation wire 4 Shoot cap return spring 5 Operation panel 6 Travel handle 7 Travel clutch lever 8 Travel continuously variable lever 9 Shoot operation lever 10 Auger / Blower clutch lever 21 Lever mounting Board

Claims (1)

[Scope of utility model registration request] 1. A chute rotation switch S is arranged at the base of a chute operation lever 9, and the chute rotation switch S is switched by the lateral rotation of the chute operation lever 9 to operate a chute rotation motor 16. The snow discharge chute 1 is pivoted left and right, the lever mounting plate 21 having the chute pivoting switch S mounted thereon is pivotally supported on the pivot shaft 24, and the chute operating lever 9 pivots the lever mounting plate 21 back and forth to shoot the chute. A snow removal chute operation lever for a snow remover, characterized in that a chute cap 2 pivotally supported on the tip of a snow removal chute 1 is configured to be vertically rotated via an operation wire 3.