JPS6131362Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is based on a system in which the needle of a cartridge attached to an arm is placed on one side of a scale-shaped gauge body that is swingably supported on a support stand, and in this state, the gauge body is The present invention relates to a stylus pressure gauge that measures the stylus pressure of a cartridge by adjusting the load on the other side and horizontally balancing the gauge body, and particularly relates to the structure of a horizontal gauge for checking the balance.

Generally, in order to play records in good condition, it is necessary to accurately adjust the stylus pressure of the cartridge, and during this adjustment, a stylus pressure gauge is used to accurately measure the stylus pressure of the cartridge. It is used. Balance-type stylus pressure gauges are widely used, but in order to accurately measure stylus pressure, this type of stylus pressure gauge has a balance-shaped gauge body with a bubble type or pendulum. A level gauge such as a type is installed to check the horizontal balance of the gauge body. In this case, the accuracy of the stylus pressure gauge is greatly affected by the accuracy of the level itself and the accuracy of the level's attachment to the stylus pressure gauge, and the stylus pressure may not be measured accurately, or the needle pressure may not be measured accurately due to the installation of the level and the price of the level. This has the disadvantage that the pressure gauge is expensive.

The present invention was developed in consideration of these points, and the structure of the balance type stylus pressure gauge has been devised so that horizontal balance can be checked using the stylus pressure gauge itself without the need for a separate spirit level. In this way, it is an object of the present invention to provide a highly accurate and compact stylus pressure gauge at a low cost.

Next, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 denotes a support stand, and this support stand 1 is made of metal such as aluminum or synthetic resin, and integrally has a fulcrum part 2 with a substantially triangular cross section on one side (right side in the figure). An inverted L-shaped gauge part 3 is integrally erected on the side (left side in the figure) of the part 2, and the upper surface 3a of this gauge part 3 is formed parallel to the bottom surface of the support base 1.

A scale-shaped gauge body 4 is swingably supported on the fulcrum 2 of the support stand 1. This gauge body 4 has a cartridge support part 5 on one side, and a load adjustment body 6 on the other side.
is attached so that it can appear and appear at will.

The gauge main body 4 is made of a metal such as aluminum or a molded material, and has a hollow part 7 formed on its lower surface, and a groove-shaped engagement part 8 provided on the inner bottom surface of the hollow part 7 is connected to the support base 4. The side of the engaging portion 8 (left side in the figure)
A hole 9 is formed in which the gauge part 3 of the support stand 1 is loosely inserted, and a pair of L-shaped indicator parts 10 are provided at the other end (the left end in the figure) for the side surface of the load adjuster 6. are provided to face each other, and an engaging edge 11 for engaging the lower surface of the load adjusting body 6 is provided to protrude inwardly from the lower end of the hollow portion 7.

On the other hand, the load adjusting body 6 is made of synthetic resin such as acrylonitrile, butadiene, and styrene resin, and is formed by protruding a pair of sliding parts 13 in parallel from the grip part 12. 13 is in the hollow part 7 of the gauge body 4,
It is mounted so as to be retractable so as to be located on both sides of the gauge section 3 of the support stand 1.

Then, when the load adjusting body 6 is attached to the gauge body 4 and the gripping part 12 is in contact with the indicating part 10, the loads on both sides of the engaging part 8 are balanced and applied to the fulcrum part 2 of the support base 1. It is formed to be supported horizontally, and in this state, the upper surface 3a of the gauge part 3 of the support stand 1 is located on the same plane as the upper surface 4a of the peripheral part of the hole 9 of the gauge body 4. It is formed.

Further, the upper surface 3a of the gauge part 3, the upper surface 4a of the peripheral part of the hole 9 of the gauge body 4, and the side surface 3b of the gauge part 3 are each formed in different colors that can be identified, so that the balanced state of the gauge body 4 can be seen at a glance. I'm starting to understand.

Further, on the upper surface of the cartridge support portion 5 of the gauge body 4, there are a plurality of support holes 5a, 5 in the shape of inverted conical holes.
b is formed, and each support hole 5
Needle pressure scales 13a and 13b for each indicating portion 10 are provided on the upper surface of the pair of sliding portions 13 of the load adjustment body 6 in correspondence with the numbers a and 5b.

In such a configuration, when measuring the stylus pressure of the cartridge of a record player, the support base 1 is placed on the turntable 21 which is a horizontal surface that has already been adjusted horizontally, and the support base 1 is placed on the fulcrum part 2 of the support base 1. On the other hand, the gauge body 4 on which the load adjustment body 6 is attached is engaged and supported at the engaging part 8 with the grip part 12 and the indicator part 10 in contact with each other, and the horizontal gauge body 4 is Needle 24 of cartridge 23 attached to tone arm 22 in either support hole 5a or 5b of cartridge support section 5
support.

The support holes 5a and 5b are selected depending on the lightness of the needle pressure set in the cartridge 23. If the needle pressure is relatively heavy, the support hole 5a near the engagement part 8, that is, the fulcrum part 2 is selected, and the needle pressure described later is selected. To read the pressure, read the stylus pressure scale 13a corresponding to this support hole 5a, and if the stylus pressure is relatively light, read the stylus pressure scale 13a corresponding to the support hole 5a.
That is, the support hole 5b far from the fulcrum part 2 is selected, and the stylus pressure is read by reading the stylus pressure scale 13b corresponding to this support hole 5b.However, in the following explanation, the stylus pressure of the cartridge 23 is relatively The case where the needle 24 of the cartridge 23 is engaged with the support hole 5b near the fulcrum part 2 will be explained, and the explanation of the other case will be omitted.

Then, in this state, the gauge body 4 is rotated clockwise in FIG.
While positioned below the peripheral upper surface 4a, gradually pull out the load adjusting body 6 from the gauge body 4 via the gripping part 12, sandwiching the engaging part 8, that is, the fulcrum part 2, and place it on the opposite side of the cartridge support part 5. By increasing the load on the gauge body 4 at , the gauge body 4 is again balanced horizontally.

At this time, the balance of the gauge body 4 is determined by the gauge part 3.
The upper surface 3a of the gauge body 4 and the upper surface 4 of the peripheral part of the hole 9 of the gauge body 4
This is done by aligning the upper surface 3a of the gauge part 3 and the hole 9 of the gauge body 4 to the same plane.
Since the peripheral upper surface 4a and the side surface 3b of the gauge part 3 are formed in different colors, the balance state can be easily and accurately determined, and the gauge body 4 can be accurately balanced horizontally. It's becoming like that.

Then, with the gauge body 4 accurately balanced horizontally, the numerical value indicated on the indicator 10 is read at the needle pressure scale 13a corresponding to the support hole 5a in which the needle 24 of the cartridge 23 is supported. This makes it possible to accurately measure the stylus pressure of the cartridge 23.

In this embodiment, the gauge part 3 and the hole 9 are provided on the load adjustment body 6 side of the fulcrum part 2 and the engaging part 8, but they are provided on the cartridge support part 5 side of the fulcrum part 2 and the engaging part 8. Also, when the gauge body 4 is horizontally balanced, the upper surface 3a of the gauge part 3 and the upper surface 4a of the peripheral part of the hole 9 of the gauge body 4 are made to be on the same plane. It is also possible to make the height higher than this and provide an indicator scale on the side of the gauge part to indicate the horizontal state and the tilted state, so that not only the horizontal state but also the tilted state can be numerically checked. The adjustment of the load is not limited to the above-mentioned load adjustment body 6, but may also be made by placing a weight on it.

Further, the stylus pressure gauge of the present invention can function not only as a stylus pressure measurement but also as a spirit level. That is, without applying any load to the cartridge support section 5,
And the grip part 12 of the load adjustment body 6 is attached to the gauge body 4.
When the gauge body 4 is in contact with the indicator 10 of
is horizontal regardless of the inclination of the support base 1, so
From the positional relationship between the gauge portion 3 and the hole 9, it is possible to know the inclination of the support base 1, that is, the surface on which the support base 1 is placed.

As described above, according to the present invention, the horizontal balance of the gauge body can be checked using the structure of the stylus pressure gauge itself, so the accuracy of the stylus pressure gauge can be improved. However, since a hole into which the gauge portion is loosely inserted can be formed by drilling the gauge body, the stylus pressure gauge can be manufactured compactly and at low cost.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with Fig. 1 being a perspective view of the stylus pressure gauge, Fig. 2 being a longitudinal sectional view thereof, and Fig. 3 being an enlarged plan view of the main part thereof. 1: Support base, 2: Support part, 3: Gauge part, 3a: Top surface of the gauge part, 3b: Side surface of the gauge part, 4: Gauge body, 4b: Top surface of the periphery of the hole of the gauge body, 9: Hole, 21: Turntable as a horizontal surface, 22: Arm, 23:
…cartridge, 24… needles.

Claims (1)

[Claims for Utility Model Registration] (1) A scale-shaped gauge body is swingably supported on the fulcrum of a support stand placed on a horizontal surface, and an arm is attached to one side of the gauge body. The stylus pressure of the cartridge is measured by placing the stylus of the cartridge on which the stylus is placed, and in this state adjusting the load on the other side of the gauge body to balance the gauge body horizontally. A gauge part is erected from the side to the gauge body, and a hole is formed in the gauge body into which the gauge part is loosely inserted, and the balance of the gauge body is checked based on the positional relationship between this hole and the gauge part. A horizontal stylus pressure gauge characterized by the following features: (2) A request for registration of a utility model characterized in that when the gauge body is balanced horizontally, the upper surface of the gauge part of the support stand and the upper surface of the peripheral part of the hole in the gauge body are located on the same plane. range 1
Horizontal gauge of stylus pressure gauge mentioned in section. (3) The upper surface of the gauge part of the support base, the upper surface of the peripheral part of the hole of the gauge body, and the side surface of the gauge part are each formed in different colors so that they can be easily identified. A horizontal gauge for a stylus pressure gauge according to claim 1 or 2 of the utility model registration claim.