JPH0454414Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a liquid level meter used to display the level of liquid in, for example, a fuel tank.

(Prior art) Some motorcycle fuel tanks are equipped with a gauge, i.e., a liquid level meter, and a display window on the top of the tank, but it becomes difficult to see when loaded with luggage, and it becomes even more difficult to see when the pointer is vertically movable. It has been pointed out that this trend is increasing.

(Technical Problem) An object of the present invention is to provide a liquid level meter in which the rotating direction of the float and the moving direction of the gauge pointer can be set to be perpendicular to each other.

(Technical Means) In order to achieve the above-mentioned object, the present invention pivots an engagement plate 3, which rotates due to the vertical movement of the float 2, by a horizontal support shaft 4 inside the lower part of the hollow main body 1 of the liquid meter. An engaging element 6 that rotates by engaging with an arc-shaped cam hole 5 formed in the engaging plate 3 is attached to an orthogonal shaft 9 perpendicular to the support shaft 4 so that the upper part is sloped more gently than the lower part. A pointer member 8 is formed to be rotatable around a coaxial shaft 9 provided, and has a pointer 7 at its upper end for displaying liquid volume corresponding to the vertical movement of the float.
The pointer member 8 is provided with respect to the length of the engager 6 so that the rotation range of the engager 6 at the engagement portion with the cam hole 5 corresponds to the display range from the empty amount to the full amount of the pointer 7. The length is set.

(Example) To explain with the illustrated example, this liquid level meter M is, for example, an irregularly shaped fuel tank T as illustrated in FIG.
This tank T is suitable for attaching to the lower part.
The capacity of T′ is larger than the upper T″, and the float 2
This is a type in which the direction of rotation is restricted. As shown in FIG. 1, the main body 1 has a cylindrical shape that can be opened up and down, and a deformed fan-shaped engagement plate 3 that rotates together with the shaft 10 of the float 2 is pivoted at the lower end by a support shaft 4. The engagement plate 3 has a circular arc-shaped cam hole 5 eccentric to the support shaft 4 on its rotation surface.

An engaging element 6 and a pointer 7 that engage with this eccentric cam hole 5
The member 8 provided with is pivoted to the main body 1 by an orthogonal shaft 9 so that the engager 6 can move vertically in FIG. ing. Since the orthogonal shaft 9 is perpendicular to the float support shaft 4, the moving direction of the pointer 7 can be changed by 90 degrees, and even if the float rotation direction is specified, the pointer 7 can be swung in a different direction. Eccentric cam hole 5
has an arcuate shape with different distances from the center of rotation at both ends 5a and 5b, so the engager 6 that engages with it is higher and lower when it is on the near end 5a side than when it is on the far end 5b side. The amount of movement is large, therefore, the fourth
By setting the full side at the top T'' of the tank T as shown in the figure to the near end 5a side, it is possible to correspond to changes in the liquid level and the pointer 7.

In each figure, 11 is the bearing part of the support shaft 4, 12 is the orthogonal shaft 9
13 is a gauge scale plate provided with a slit 14 through which the upper end of the pointer member 8 passes; 15 is a lens whose upper part is closed via a packing 16;
Reference numeral 7 denotes a case with a window that covers the main body 1, and has a locking protrusion 18 that locks with a step 19 on the outer periphery of the main body. Also 2
0 indicates a stopper for fixing the case 17 to the tank T, 21 indicates a seal between the main body 1 and the tank T, and 22 indicates the balance of the pointer member 8.

(Operation of the invention) In the above-described configuration, when the liquid L is injected into the tank T from the inlet F, the float 2 rotates upward as the liquid level rises, so the engagement plate rotates at the same time. 3 and the engaging element 6 engaged with the eccentric cam hole 5 move upward, and the pointer 7 displays the liquid amount corresponding to the liquid level on the gauge scale plate 13.

At this time, since the rotation axis of the member 8 provided with the pointer 7 is an axis 9 orthogonal to the support shaft 4 that rotates the float 2, the movement direction of the pointer 7 is the rotation surface of the float support shaft 4. Since the length of the pointer member 8 can be set to be several times the length from the engaging part of the engaging plate 3 to the orthogonal axis 9, the rotation of the engaging element 6 can be changed. Even if the movement range is narrow, the display range of the pointer 7 can be amplified.

In addition, the upper part of the cam hole 5 has a gentler slope than the lower part, and the amount of vertical movement of the engaging element 6 can be changed on both sides of the cam hole 5. Display that corresponds to the actual capacity becomes possible.

(Effect of the invention) According to the invention, the vertical movement of the float 2 that follows the liquid level is controlled by the cam hole 5 whose upper part is sloped more gently than the lower part, so that the liquid volume can be displayed according to the shape of the tank. Even if the movable amount of the engaging plate 3 or the engaging element 6 that transmits the vertical movement range of the float 2 is small, the ratio of the lengths of the engaging element 6 and the pointer member 8 can be increased to increase the desired range of movement of the pointer 7. Since it can be set to a size that is large enough, it has the remarkable effect of being optimal as a liquid level meter for irregularly shaped tanks, or as a liquid level meter where only a narrow mounting area is available.

[Brief explanation of the drawing]

The drawings show one embodiment of the liquid meter according to the present invention, and FIG. 1 is a cross-sectional side view of the main part, FIG. 2 is a cross-sectional side view of the main part in a direction 90 degrees different from that in FIG. 1, and FIG. 4 is an explanatory diagram of the display section, and FIG. 4 is a partially cutaway side view of the display section attached to the tank. 1... Main body, 2... Float, 3... Engagement plate,
4... Support shaft, 5... Cam hole, 6... Engagement element, 7...
... pointer, 8... member provided with pointer, 9... orthogonal axis.

Claims (1)

[Claims for Utility Model Registration] (1) At the inside of the lower part of the hollow body 1 of the liquid meter, an engagement plate 3 that rotates due to the vertical movement of the float 2 is pivoted by a horizontal support shaft 4, and the lower part An engaging element 6 that rotates by engaging with an arc-shaped cam hole 5 formed in the engaging plate 3 is provided on an orthogonal shaft 9 perpendicular to the support shaft 4 so that the upper slope is gentler. A pointer member 8 is provided on the orthogonal shaft 9, and is rotatably formed around the cam hole 5, and has a pointer 7 at the upper end for displaying the liquid amount corresponding to the vertical movement of the float. A liquid level meter having a configuration in which the length of the pointer member 8 is set relative to the length of the engager 6 so that the rotation range of the engager 6 corresponds to the display range of the pointer 7 from empty to full. (2) The flowmeter according to claim 1, in which the cam hole 5 has an arcuate shape eccentric to the support shaft 4.