JPS61285195A - Propeller for ship with gage having adjustable sensitivity - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mechanism provided for displaying the overall angular position of a marine propulsion device with respect to the stern beam of a hull, and more particularly to a device for transmitting trimming status and a trimming gauge.

See US patents listed below. i.e. U.S. Patent no.
Publication date Inventor name 2.681,435
June 15, 1954 [IW, 11. 1uri
e3.380,011 April 23F+, 1968
, 1. R, 1lasket13.564,476
February 1971 1611 W, A, l1
arden3.601.082 August 2, 1971
4th K, W, Wise3.64], 965
February 15, 1972 [IR, C, Schmie
de13.722,456 March 1973 27EI
lambrec old etc. 3.750.617 197
August 3rd year 7 [l 1. ,G.PinkerLon3
．． 797,449 March 19, 1974 [I Ca
rpenl:er etc. 3.834,345 1974 9
Month 10th llager etc. 3.844,247 197
October 4th 29FI Co11is etc. 3.848,1
85 November 12, 1974 [i M, 1Ien
1.5che13.886,448 1975 5
Month 27 FI Drabenko et al. 3.894.250
July 1975 8FI llager etc. 3.92
9.089 1975 12Ji 30FI la
mbrechl et al. 3.931.784 1976 IJ113FI Co11is et al. 4.005,67
4 February 1, 1977 J, A, Davi
d4.05+, 801 October 1977 4 [I
Woodfi l 1st class 4.318.699
March 1982 9 “l Wenst, adt, etc. 4.
364,733 December 21, 1982 14.1
ohner/1,420,741 December 13, 1983, 0. West4.449.945
May 22, 1984 8.R.Ferguson
4.459.115 July 10, 19114 “l
lE, T, 1llard reissue 28.816 May 1976 1801, ambr
echl: etc. The present invention provides a marine propulsion device that includes a propulsion device that can be steered about a substantially horizontal axis and tiltable about a substantially horizontal axis.

This propulsion device includes a lower device, a propeller rotatably supported by the lower device, and a trimming sending device for displaying the approximately horizontal angular position of the propulsion device □. a variable resistor, a pivotally supported magnet, a first coil adjacent to the magnet for coupling to a power source, magnetically adjacent and electrically coupled to the first coil; a second coil electrically coupled between the first and second coils and electrically coupled to the trimming state sending device; and a trimming gauge comprising a device for changing the sensitivity of the gauge to the resistance value of the variable resistor of the status sending device.

The invention also includes a pivotally supported magnet;
a first coil adjacent the magnet and coupled to a power source; a second coil magnetically adjacent the first coil electrically coupled and for being grounded; and a device for changing the current sensitivity of the gauge.

In one embodiment, the sensitivity changing device comprises the first
a variable resistor electrically coupled in parallel with one of the coil and the second coil.

In one embodiment, the sensitivity modification device includes a variable resistor coupled electrically in parallel with the trimming delivery device.

One of the main features of the invention is the provision of a gauge that includes a device for changing the current sensitivity of the gauge so that the sensitivity of the gauge can be easily adjusted. This allows it to be individually adjusted to best match the particular trimming characteristics, no matter what hull it is installed on.

For example, this sensitivity modification device allows the gauge to be adjusted "in the field" so that the gauge properly indicates gold trimming conditions at a certain point for a particular engine on that particular device. . Additionally, this gauge can be used with different variable resistance delivery devices.

Another aspect of the present invention 1. A unique feature is the provision of an easily adjustable gauge.

Other features and advantages of the invention can be found in the following description,
This will become clear when comparing the drawings and the claims in the heading.

Before describing one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of components set forth in the following description and illustrated in the drawings. Should. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Additionally, it should be understood that the words and phrases used in the text are for descriptive purposes only and should not be considered limiting.

Shown in the drawing is a marine propulsion device 10 that includes a mechanism 14 for indicating the oscillating movement, or angular position, of a propulsion device 18 attached to the transom member 22 of the hull. In the illustrated construction, this marine propulsion device IO takes the form of a stern drive, with the propulsion device 18 being mounted on the transom 22 of the hull by means of a support device in the form of a gimbal housing device 24 . This gimbal housing device 24 includes a stern beam housing 26 coupled to a stern beam 22 of the hull, and a gimbal housing 26 mounted on the stern beam housing 26 for horizontal rocking motion. It consists of a ring 27. The propulsion device 18 is
It is pivoted to the gimbal housing 27 to produce a horizontal rocking motion. Accordingly, the gimbal housing arrangement 24 supports horizontal rocking movement of the propulsion device 18 about a generally horizontal axis for steering and a generally horizontal pivot axis for trimming and tilting. Horizontal rocking motion of the propulsion device 18 around the heart is allowed.

A device in the form of a tilting and trimming cylinder assembly 28 coupled between the gimbal ring 27 and the propulsion device 18 for causing a rocking movement of the propulsion device 18 in a horizontal direction relative to the transom 22 of the hull. is also provided.

The propulsion device 18 also includes a lower device 29 that rotatably supports the propeller 30 and a device (not shown) for rotating the propeller 30.

Although other constructions may be used in other embodiments, the display mechanism 14 (see FIG. 5) provides a visual indication of the general angular position of the propulsion device 18 relative to the hull transom 22. Do the following. To explain in more detail, this display mechanism 1
4 indicates the overall angular position of the propulsion device 18 as the propulsion device 18 swings horizontally through a first angle relative to the transom member 22 of the hull. Beyond that, this mechanism 14
indicates that the propulsion device 18 is placed at an angular position exceeding the first angle. In this embodiment, this first angle is the trimming angle or range, and the movement of the propulsion machine 18 beyond this trimming angle is referred to as the tilt angle or range. Movement of the propulsion unit 18 through this trimming range typically results in raising and lowering the bow of the hull to change the hull attitude during powering, and movement of the propulsion unit 18 within the heel angle is required for maintenance or storage. Therefore, the propulsion unit 18 is pulled out of the water.

The display mechanism 14 includes a device in the form of a trimming gauge 34 (see FIGS. 5 and 6) for providing an overall visual indication of the angular position of the propeller 18 and for controlling the trimming gauge 34. and a signal emitting device in the form of a trim condition emitting device 38 for producing an operable signal.

Further, as shown in FIGS. 2 to 5, the trimming state delivery device 3B includes a housing 42 and a variable resistor 46 supported within the housing 42 and including a resistive element 50 having an end portion 54. , a fixed resistor 62 coupled electrically in parallel with the variable resistor 46, and a wiper 58 supported within the housing 42 for pivotal movement along the resistive element 50. The housing 42 is attached to the gimbal ring 27 in a spaced relationship from the generally horizontal pivot axis 23, although other configurations may be used in other embodiments.

The trimming state sending device 38 also transmits the trimming state to the propulsion device 1.
8 moves within the trimming angle in response to the oscillating movement of the propulsion device 18 to move said wiper 58 along the resistance element 50 and when the propulsion device 18 moves beyond a predetermined angle. Wiper 5 beyond the end 54 of the resistance element
It includes an exercise device for exercising 8. Although other structures may be used in other embodiments, such a motion device may include a lever 6 pivotally mounted to the housing 42.
G (see Figures 2 and 3). The wiper 58 is coupled to a bar 66 for pivoting together so that when the lever 66 pivots relative to the housing 42 of the trim delivery device, the wiper 58 moves along the resistance element 50. ing. Further, as shown in FIGS. 3 and 4, the bin 70 is attached to the housing 42.
One end of the lever 66 is pivotally connected at -1-, and the lever 66 is coupled to the wiper 58.

In other embodiments (not shown), the wiper 58 is connected to the propulsion unit 18 and the gimbal ring 2 at the pivot axis 23.
7 and the resistance element 50 can be mounted on the other of the propulsion device 18 and the gimbal ring 27. However, the advantage of spacing the housing 42 from the pivot axis 23 and using the lever 66 is that the small swinging momentum of the propulsion unit is reduced by the lever 66 and the wiper 5
The purpose is to increase the resistance change meter caused by the change in the angle of the propulsion device 18 by producing a large swing (2) of 8. As a result, the trim state delivery device 38 becomes more sensitive to propeller motion.

As shown in FIG. 2, the motion device also combines the wiper 58 and the propulsion device to move the wiper 58 along the resistance element 50 by an amount that is changeably proportional to the oscillating momentum of the propulsion device 18. Contains equipment capable of operating between 18 and 18 hours. Further, this changeably proportional movement device is located adjacent the free end 74 of the lever 66 to the propeller +8. A curved camming surface 78 at I- and a free end 7 of the lever 66 such that when the thruster 18 swings the lever 66 pivots in a manner defined by this curved camming surface 78.
4 into contact with a curved camming surface 78. Furthermore, as shown in FIGS. 2 and 3, this biasing device is concentric with the pin 70! ?
and the housing 42- of the trimming state sending device.
The first end 86 is fixed to the lever 66 to rotate the lever 66 in the clockwise direction in FIGS. 1 and 2.
6 and an engaging second end 90 .

The contour of said curved camming surface 78 is such as to produce a linear or non-linear characteristic relationship between the wiper momentum and the horizontal motion of the propulsion unit 18, or to modify the doubling effect on the wiper momentum. Alternatively, the trimming gauge may be configured to specifically compensate for non-linear characteristics of the display mechanism 14 so that the display is directly proportional to the angle of the propeller 18.

The lever 66 is also configured such that the free end 74 of the lever 66 is positioned to be engaged by the curved camming surface 78 when the thruster 18 swings back into the trimming range.
Also provided is a device for engaging the lever 66 after the wiper 58 has swung through a first angle.

Therefore, the operation of the trimming state sending device 3B is as follows. That is, as the lever 66 and the wiper 58 pivot with the thruster 18 over the trimming range, the wiper 58 moves along the entire length of the resistance element 50. As wiper 58 moves along resistive element 50, the resistance of variable resistor 46 changes in a manner determined by the type of resistive element used. In some configurations, this change in resistance is a linear function of the wiper's momentum; in other configurations, the change in resistance is not a linear function of the wiper's momentum.

The movement of the wiper 58 at any particular time depends on the shape of the curved camming surface 78. In other words, this curved cam action surface 78 will cause the rocking motion of the propulsion machine!
Increase or decrease the momentum of the wiper relative to ■.

Providing this camming surface 78 therefore makes it possible to select the desired relationship between the oscillating motion of the propulsion machine (t and the resulting TI) and the change in resistance of the variable resistance 46. It is to make it. One such desirable relationship is that when combined with the trimming condition transmitter 38 or the trimming gauge: (4), the change in resistance is directly proportional to the actual change in the trimming angle of the propeller 18. - To produce a change in the visual representation of the rimming angle.

+-i (By electrically connecting the variable resistor 46 and the national resistor 62 in parallel, the following result is achieved.

The resistance value of the parallel circuit is 1 ÷ resistance value of variable resistor 46 + 1 ÷
It is equal to the reciprocal of the resistance value of the fixed resistor 62. The variable resistor 46 has a certain small value when its resistance value is low. As the resistance value of the variable resistor increases, the total resistance value of the parallel circuit increases. When the variable resistance wiper 58 leaves the end 54 of the resistive element 50, the total resistance created by this parallel circuit changes discontinuously and increases significantly. As a result, when a parallel circuit is coupled on either side of a voltage source, a discontinuous change in the resistance value causes a discontinuous change in the current flowing through the parallel circuit. This change in resistance results in a discontinuous visual display of the propeller 18 when the trimming status delivery device 38 is coupled with the trimming gauge 34, extending beyond the trimming range and into the tilting range.

Such a visual display serves to alert the operator of the rocker of the propulsion machine 18 to stop rocking motion of the propulsion machine 18 if tilting of the propulsion machine 18 is not required.

When the propulsion device 18 is in the tilt range, the resistance value of the resulting parallel circuit is equal to the value of the fixed resistor 62. Because the manufacturing tolerances of the fixed resistor are better than those of the variable resistor 46, the resistance value of the trim state delivery device 38 when the propulsion device 18 is within the tilt range is more predictable. Thus, a more predictable visual indication is obtained when the propulsion device 18 is within the range of inclination.

In other embodiments, the lever 66 is connected to the housing 4
2+ and electrically coupled between the fixed resistor 62 and the variable resistor 46, the coupling between the times when the propulsion device 18 moves beyond a predetermined angle. Open the circuit. The switch thus acts, like the wiper 511 over the resistive element 50, to remove the variable resistor 46 from the parallel circuit.

As shown in FIGS. 5 and 6, the trimming gauge 34 includes a support in the form of a housing 98 and a magnet 102 supported within the housing 98 for pivotal movement about an end thereof. and a second magnet adjacent and in a plane adjacent to this magnet 102 (as shown schematically in FIG. 5) and coupled to a power source, such as the illustrated battery +07. 1 coil 106. Trimming gauge: 14 is also the first
A second coil +10 is magnetically adjacent and electrically coupled to and in the same plane as the coil 106 and is grounded. Furthermore, this second coil 110 is
a first coil portion I11 that is grounded and a second coil portion II+ that is coupled in parallel to the first coil 106 but extends in the opposite direction to the first coil 106; The coil section 112 is shaped like a t-hair.

Said gauge 34 also includes a display device in the form of a pointer +14 coupled in parallel to said magnet 102;
Indicates the pivoting momentum of 02. Trimming gauge 34
Also, the first coil 106 and the second coil 110
A leet wire 118 is electrically coupled therebetween to be coupled to the variable resistor 46 in the trimming state sending device 38. Furthermore, this lead wire +18 is coupled to the terminal 122 of the trimming state sending device 38. Variable resistor 46 in trimming state sending device 38
and the fixed resistor 62 are grounded.

The face 128 of the l.rimming gauge 34 is also shown in FIG. This surface 128 has four trim sections separated by lines numbered 1 through 3 and a sloped section separated by a fourth line. Guidelines 1
After the pointer 114 indicates the general or approximate angular position of the propeller 18 by sweeping this trimming section, the pointer 114 indicates that the propeller 18 is now in the tilt range by skipping over the tilt section. Display.

In operation, current flowing through the first coil 106 and the second coil 110 creates a magnetic field. first coil 1
06 and the second coil 110 are in magnetic proximity;
and extend in mutually opposite directions, so that the current flowing through the coils, one opposite to the other, determines the magnitude of the magnetism and the direction of the net magnetic field. Since the magnet 102 always tries to align with the direction of the net magnetic field, the direction of this field determines the pivoting momentum of the magnet 102. Propulsion machine 1
8 swings within the trimming range, the resistance value of the trimming state sending device 38 changes, thereby causing the coil 106
and 110 are changed. This results in a change in the direction of the magnetic field around the magnet 102, resulting in a torque being applied to the magnet 102. This torque applied to the magnet 102 will cause a pivoting movement of the magnet 102 and a movement of the pointer 114 since the magnet 102 and the pointer 114 are themselves aligned with the direction of the net magnetic field.

The trimming gauge 34 is also in electrical communication with one of the first coil 106 and the second coil 110 to change the current sensitivity of the gauge, ie, the sensitivity of the trimming gauge 34 to the resistance of the trimming state delivery device 311. It includes a device in the form of a variable resistor 126 coupled in parallel. Furthermore, this variable resistor 12B is electrically coupled in parallel with the second coil +10.

Alternatively, variable resistor 127 can be electrically coupled in parallel with trim state delivery device 38 as shown by the dotted line in FIG. A calibration resistor (not shown) in the form of a fixed resistor is also optionally connected to the first coil 106.
They can also be electrically coupled in parallel.

Adjustment of the variable resistor 126 via coils 10B, II+ and +12 causes a change in the amount of current returned to the second coil 110, thereby affecting the position of the pointer 114 caused by the resistance of the trimming state delivery device 38. affect The effect of the variable resistor +26 on the position of the pointer 114 increases as the resistance value of the trimming state sending device increases.

Trimming gauges such as gauge 34 can be used in a variety of ways:
Ship''',!5 't') Species'''. Propulsion device 0 support 1
As a result, the particular proper angular position when the propeller leaves and enters the trimming range will vary for different devices. Providing variable resistor 126 allows the vessel operator to adjust the sensitivity of gauge 34 to a particular hull system so that trim condition transmitter 38 and trim gauge 34 can accommodate variations between trim and list ranges. This enables proper display.

In another embodiment, a variable resistor +30 may instead be coupled electrically in parallel to the first coil 106, as shown in dotted lines in FIG. However, this variable resistor 130 would then increase the amount of current delivered to the trim state delivery device 38, risking an overload to the power rating of the device. Therefore, coupling the variable resistor 126 in parallel to the second coil 110 is more preferable than the above-described modification because it sends current to ground.

As shown in FIG. 6, trimming gauge 34 also includes a device in the form of a knob for adjusting the resistance of variable resistor 126. As shown in FIG. This knob 134 allows access from the outside of the housing 98 so that the operator can easily change the resistance value for trimming gauge 34 calibration operations.

Features of the invention are set forth in the appended claims.

[Brief explanation of drawings]

FIG. 1 is a side view showing a marine propulsion device implementing various features of the present invention, and FIG. 2 is an enlarged view showing a part of the marine propulsion device including a trimming state sending device implementing various features of the present invention.
3 is a sectional view taken along line 3--3 in FIG. 2, FIG. 4 is a sectional view taken along line 4--4 in FIG. 3, and FIG. FIG. 6 is a cross-sectional view of a trimming status delivery device for measuring and generally visually displaying the angular position of a marine propulsion system, and FIG. 6 is a perspective view of a trimming gauge embodying features of the present invention.

Claims (1)

[Claims] 1. A propulsion device is provided that can be steered around a substantially vertical axis and tiltable around a substantially horizontal axis,
The propulsion device includes a lower device and a propeller rotatably supported by the lower device, and further includes a trimming condition indicating a substantially vertical angular position of the propulsion device and including a variable resistance for grounding. A delivery device and a trimming gauge are provided, the trimming gauge including a pivotally supported magnet, a first coil for coupling to a power source adjacent the magnet, and a first coil for coupling to a power source adjacent the magnet. a second coil magnetically adjacent and electrically coupled to the first coil and grounded; and a second coil electrically coupled between the first coil and the second coil and the trimming state delivery device. A marine propulsion device comprising: a lead wire electrically coupled to a variable resistor of the trimming state sending device; and a device for changing the sensitivity of the gauge to the resistance value of the variable resistor of the trimming state sending device. 2. The device for changing the sensitivity includes a variable resistor electrically coupled in parallel with one of the first coil and the second coil. marine propulsion system. 3. The marine propulsion device according to claim 1, wherein the device for changing the sensitivity includes a variable resistor electrically coupled in parallel with the variable resistor of the trimming state sending device. 4. a pivotally supported magnet; a first coil adjacent to the magnet for coupling to a power source; and magnetically adjacent and electrically adjacent the first coil. A gauge, characterized in that it comprises a second coil for being coupled and grounded, and a device for varying the sensitivity of the current of the gauge. 5. The gauge according to claim 4, wherein the device for changing the sensitivity includes a variable resistor electrically coupled in parallel with one of the first coil and the second coil. . 6. A gauge according to claim 5, characterized in that said sensitivity varying device is electrically coupled in parallel with said second coil. 7. The magnet is supported by a housing, the variable resistor includes a device for changing the resistance of the variable resistor, and the resistance changing device is accessible from outside the housing for calibration operations. The gauge according to claim 5. 8. Claim 8, further comprising a lead wire electrically coupled between the first coil and the second coil and electrically coupled to a variable resistor that is grounded. Gauge described in item 5. 9. The gauge according to claim 5, further comprising a display device coupled to the magnet to display the pivoting momentum of the magnet.