JPS6338676U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 4 show the first embodiment, Figure 1 is a schematic diagram showing the drive system of a skid steer vehicle, Figure 2 is a partially enlarged cross-sectional view showing the connecting part of both interlocking rods in the neutral state, and Figure 3. 4 is a partially enlarged sectional view showing the same connecting portion when moving forward, FIG. 4 is a partially enlarged sectional view showing the same connecting portion when moving backward, FIGS. 5 to 9 show the second embodiment, and FIG. Figure 1 equivalent figure, No. 6
The drawing is a partial view of Fig. 5, Fig. 7 is a drawing corresponding to the above-mentioned Fig. 2, Fig. 8 is a drawing corresponding to the above-mentioned Fig. 3, and Fig. 9 is a drawing corresponding to the above-mentioned Fig. 4.
FIG. 10 is a schematic diagram showing a drive system of a conventional skid steer vehicle. In the drawing, 4 is a variable displacement pump, 6 is a swash plate lever (
7 is a swash plate cylinder, 14 is a controller, 15 is a travel lever (operating member), 18
is an interlocking rod or interlocking lever (interlocking member), 19
19a is the interlocking rod (interlocking member), 19a is the interlocking lever (interlocking member), and 19b is the interlocking rod (interlocking member).
, 20 and 21 are connecting parts, 22 is a holder, 22
a is the bottom (engaging part), 23 is the engaging ring (engaging part), 24 is the engaging collar (engaging part), 26 is the position detection sensor, 27 is the engaging pin (engaging part), G is The relative movement allowable gap, P, is the relative reference position.

Claims (1)

[Claims for Utility Model Registration] A variable displacement pump, an operating mechanism for adjusting the variable displacement member, and an operating member for the pump, comprising an interlocking member provided on the variable displacement member and an interlocking member provided on the operating member. are connected to each other with a gap that allows relative movement at the connecting parts provided therein, and the relative reference position between the connecting parts of both interlocking members is detected, and the relative displacement when they move relatively from this reference position is detected. and a controller that controls the variable member actuation mechanism to match the relative displacement detection value to the relative reference position detection value based on the detection signal from the sensor, and The variable displacement member drive unit of the variable displacement pump is provided with an engaging portion that engages with each other so that both connecting portions move relative to each other within the range of the relative movement allowable gap by operating the operating member and then move in unison. Control device.