JPH0722602U - Handle attachment device for work equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] An object is to obtain a handle mounting device for a working machine, which has a highly rigid mounting structure for mounting the handle and can reduce the angle change of the handle when the handle is vertically adjusted. It is a thing. [Structure] A handle member is directly attached to a die-casting transmission case, and a vertical adjustment mechanism of the handle is configured by utilizing the attached portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handle attachment device for a working machine.

[0002]

[Prior art]

 In the conventional working machine, the handle is mounted on the handle frame on the upper part of the machine so that it can be adjusted up and down, as seen in Japanese Utility Model Publication No. 61-30946.

[0003]

[Problems to be solved by the device]

 As described above, when the handle is attached to the mission case via the intermediate body such as the handle frame, the operation load of the handle is applied to the handle frame, and the operation load of the handle cannot be directly transmitted to the mission case. A separate part called a handle frame is required between it and the mission case. Also, many mounting bolts are required to mount the handle frame to the mission case, and therefore, the mounting bolts add to the play. Furthermore, since the handle mounting position is far from the axle, a highly rigid mounting structure cannot be obtained, and when the handle is adjusted up and down, the handle angle changes significantly. Therefore, in order to solve the above problems, the present invention aims to provide a handle mounting device for a working machine that has a highly rigid mounting structure for mounting the handle and can reduce the angle change of the handle when adjusting the handle vertically. It is what

[0004]

[Means for Solving the Problems]

 In order to achieve the above objectives, the present proposal is to provide a handle mounting device for the following working machine. That is, the mounting boss of the handle member is projected from the periphery and the middle of the die-cast molded mission case, the handle member is fixed to the mission case with a bolt and nut through the mounting boss, and the handle is vertically adjusted at the fixed position. It is a handle attachment device for a working machine provided with a mechanism.

[0005]

[Action]

 The handle member is attached directly to the mission case by using the mounting boss that protrudes around and around the die-cast mission case and can be adjusted vertically.

[0006]

【Example】

 Embodiments shown in the drawings will be described below. First, a cultivator as a working machine, particularly a small cultivator having a rotary integrally formed, will be described with reference to FIG. Reference numeral (1) is a frame, on which an engine (2) is mounted, and the engine pulley (3) powers an input pulley (5) mounted on a shaft (5a) via a belt (4). Is transmitted and drives the wheel (7) mounted on the shaft (7a) via the transmission gear in the upright portion of the L-shaped mission case (6). Further, the rotary (8) is driven via the transmission gear in the inclined portion of the mission case (6). The bonnet (9) on the wheel (7) has a guide groove (11) for the speed change lever (10), and the tension roller (12) is mounted on the inclined portion of the mission case (6) as a handle member (13). It is operated by the clutch lever (14). The rotary (8) has a rotary cover (15), and the rear cover (16) is configured to rotate up and down around a rotary axle (18) by a supporting plate (26). A resistance rod (18) and a working depth adjusting rod (19) are attached to a boot-type fastening member (17) for attaching the rotary cover (16) to the axle (18) so that the vertical movement can be adjusted, and the fastening member (17) By inclining the rods against the torque springs (22) and (23) whose centers are wound around the fixing pins (20) and (21), the notches (24) and (25) of the rods are fixed to the fixing pins (20). ) It is possible to release the locked state by separating from (21). The rear cover (16) has a rubber droop (27).

When attaching the handle member (13) to the mission case (6) in the working machine as described above, when the mission case (6) is die-cast as shown in FIG. 1, an L-shaped mission case (6) is used. ) Around the inclined case of the rotary case and the middle of the transmission case in the figure, handle mounting bosses (28) (29) are provided on both sides of the rotary case (6) so as to project. Several handle mounting bosses (28) around the mission case are formed vertically, and the bolt hole (30) at the tip of the handle (13), the mounting boss hole (29) at the middle of the mission case, and the bolt at the top of the handle. Mounting around the hole (31) and the mission case Fix with either of the holes of the boss (28) by bolts (32) (33) and nut (34) or nut with knob (35), respectively. At that time, the bolt (32) inserted into the hole of the mounting boss (29) and the bolt hole (30) of the handle (13) serves as a pivot, and the handle can be selected by selecting one of the plurality of mounting bosses (28). You can adjust (13) up and down.

When the handle (13) is attached to the mission case (6) as described above, the operating load of the handle can be directly transmitted to the mission case (6), and a highly rigid mounting structure can be obtained. The case is die-cast and the number of mounting bolts for mounting the handle member is small, so the number of parts can be reduced. In any of the above cases, the present invention is characterized in that the handle member is directly attached to the die-cast molding case, and the attaching / detaching portion is used to construct the handle vertical adjustment mechanism.

[0009]

[Effect of device]

 According to the proposal, since the handle member is directly attached to the die-casting mission case, there is no mounting member such as a handle frame provided between the handle member and the mission case. The load can be directly transmitted to the mission case, and a highly rigid mounting structure can be obtained. Also, since the mission case is die-cast and does not require a handle mounting member, the number of mounting bolts is correspondingly reduced, and rattling due to the mounting bolts can be reduced, and a mounting structure with higher rigidity can be obtained and the number of parts can be reduced. It is possible to reduce the cost. The handle mounting position is near the axle, so the handle grip and axle are the shortest distance, and a structure with high rigidity is obtained. Further, since the handle mounting position can be arranged in the vicinity of the axle, it is possible to reduce the angle change of the handle when the handle is vertically adjusted.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of the device of the present invention.

FIG. 2 is a front view showing the entire structure of the working machine.

[Explanation of symbols] 6 Mission case 13 Handle member 28 Mounting boss 29 Mounting boss 30 Bolt hole 31 Bolt hole 32 Bolt 33 Bolt 34 Nut 35 Nut with knob

Claims (1)

[Scope of utility model registration request] 1. A mission case formed by die casting.
Attach the mounting boss of the handle member to the periphery and the middle and
Mission the handle member with bolts and nuts via the boss
It is fixed to the case, and the handle vertical adjustment mechanism is attached to the fixed part.
Handle attachment device for the working machine provided.