JPH0227362Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cartridge mounting device for a record player.

The cartridge installed on the cartridge mounting surface of the head shell is usually adjustable in its mounting position along the longitudinal direction of the tone arm, but in the past, a plurality of left and right cartridge mounting screw holes were arranged side by side on the cartridge mounting surface. Alternatively, the cartridge mounting position can be adjusted by providing a pair of left and right cartridge mounting long holes penetrating from the mounting surface to the upper surface of the head shell. However, when the screw holes are placed side by side, it is difficult to make fine adjustments for overhang adjustment.
Further, in the case of a cartridge having an elongated hole, there is a drawback that the cartridge cannot be attached to the head shell in an accurate position due to play between the mounting screw inserted through the elongated hole and the elongated hole.

The present invention provides a cartridge mounting device that eliminates the above-mentioned drawbacks and also allows the height of the cartridge to be adjusted, and will be explained below with reference to the drawings.

FIG. 1 is a diagram for explaining an embodiment to which the present invention is applied, in which a first groove 21 is provided on the upper surface of the head shell 1, and a second groove 22 is provided on the cartridge mounting surface, which is the lower surface of the head shell 1. are formed along the longitudinal direction of a tone arm (not shown) to which the head shell 1 is attached, respectively, and a pair of elongated holes 6 are penetrated by a pair of mounting screws 4, 4 for attaching the cartridge 3 to the head shell 1. , 6 are formed along the above-mentioned longitudinal direction, penetrating from the lower surface to the upper surface. Reference numerals 5 and 5 designate a pair of penetration holes formed in the cartridge 3 through which the mounting screws 4 and 4 are inserted. The plate member 7 has a convex portion 1 on its lower surface that fits into the grooves 21 and 22 of the head shell 1 without any gaps.
0, and on its upper surface there is a concave groove 2 of the head shell 1.
Concave grooves 23 having the same width as 1 and 22 are provided, respectively. Further, the plate member 7 is provided with a pair of through holes 8, 8 into which the mounting screws 4, 4 can pass, and a pair of screw holes 9, 9 into which the mounting screws 4, 4 can be screwed.

In the present invention having the above configuration, the plate member 7 is used as follows. FIG. 2 shows a case where the plate member 7 is used for fixing a cartridge.
The screw holes 9, 9 are positioned so as to correspond to the penetration holes 5, 5 of the cartridge placed at designated positions. The mounting screws 4, 4 inserted from the through holes 5, 5 side of the cartridge 3 are attached to the long holes 6, 6 of the head shell 1, respectively.
The cartridge 3 is inserted into the head shell 1 by being screwed into the screw holes 9, 9 of the plate member 7.
Fixed.

Further, FIG. 3 shows a case where the plate member 7 is used for adjusting the height of the cartridge, and in this case, two plate members 7 ₁ and 7 ₂ are prepared. The first plate member 7 ₁ is disposed on the lower surface side of the head shell 1 with its convex portion 10 fitted into the groove 22 of the head shell 1 , and the cartridge 3 is disposed on the lower surface side of the head shell 1 via this plate member 7 ₁ . be done. Another plate member ₇₂ is used for fixing as shown in FIG. 2, and its convex portion 10 is fitted into the groove 21 of the head shell 1, and is disposed on the upper surface side of the head shell 1. In this case, the through holes 8, 8 of the plate member ₇₁ and the screw holes _{9, 9 of the plate member 72} are arranged correspondingly to the penetration holes 5, 5 of the positioned cartridge 3, and as in the case of FIG. Attach the cartridge 3 using the mounting screws 4 and 4.
is fixed to head shell 1.

In addition, by preparing multiple plate members used for height adjustment and overlapping them by fitting the convex part with the concave part, the height of the cartridge can be adjusted over a wide range, and the thickness of each plate member can be adjusted. It is also possible to make fine adjustments by making it thinner.

According to the present invention, by fitting the plate member 7 and the engaging portion of the head shell 1, it is possible to attach the cartridge 3 to the head shell 1 in an accurate positioning state, and it is also possible to adjust the overhang. It is possible to provide a cartridge mounting device that has excellent advantages such as being able to be used for height adjustment.

[Brief explanation of the drawing]

FIG. 1 is a diagram for explaining one embodiment of the present invention;
FIGS. 2 and 3 show diagrams for explaining each usage example. 1... Head shell, 21, 22, 23... Concave groove, 3... Cartridge, 6... Elongated hole, 7... Plate member, 8... Through hole, 9... Screw hole, 10...
...Protrusion.

Claims (1)

[Claims for Utility Model Registration] First and second grooves extending in the longitudinal direction on the top surface and the bottom surface, which is the mounting surface of the cartridge, respectively;
and a head shell having a pair of elongated holes formed in parallel with the groove to pass through the cartridge mounting screw, and a convex engaging member on one surface to fit into the first or second groove. A cartridge mounting device comprising a plate member having a joint portion and a third groove having a width equal to the width of the groove on the other surface opposite to the one surface.