JPS5918503Y2 - Knob mounting structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a mounting structure for a legitimate child.

A knurled shaft 7, as shown in FIG. 1, which is generally used to attach the rotating heir 6, has a groove 8 cut in the axial direction of the shaft, and the elasticity of the shaft 7 holds the heir 6 with a constant force.

In this case, since the knurled shaft is pulled out by knurl processing, it is difficult to determine the center of rotation of the shaft 7 and the heir 6
Even if it is installed, it has the disadvantage of easily causing so-called runout.

This proposal was made with these points in mind, and to put it simply, a round shaft part is provided at the tip of the knurled shaft, and the knurled shaft is inserted into a cylindrical part formed at the center of rotation of the second child. A cavity into which the knurled shaft can be fitted and a cavity into which a round shaft connected to this cavity can be fitted in close contact with precision are provided, and the cavity corresponding to the knurled shaft is configured to elastically fit and hold the knurled shaft, and the above-mentioned structure is provided. The cavity into which the round shaft is inserted is configured to fit and hold the round shaft so that the center of rotation of the shaft can be easily determined, and this is a pedigree mounting structure that significantly reduces the deflection of the pedigree.

Hereinafter, the present invention will be further explained in detail with reference to the drawings.

Figure 2 is a side sectional view showing the legitimate child of the present invention being attached to the round shaft and knurled shaft, Figure 3 a and b
4 shows a side view of the legitimate child and a front view of its cylindrical portion, and FIG. 4 is a sectional side view showing the legitimate child separated from the round shaft portion and the knurled shaft.

In these figures, 1 is a rotary heir made of an elastic material such as plastic, and this rotary heir 1 is constructed such that it has cylinders 1a and lb on a concentric circle, and the small diameter cylinder 1b is a round shaft (described later). 2a and the knurled shaft 2 with the round shaft 2a formed at the tip thereof are formed in a cavity 1C91d having an inner diameter into which the knurled shaft 2 is inserted, and can be particularly fitted into the group of outer circumferential longitudinal grooves of the knurled shaft 2 with minimal gaps. The cavity 1d having a group of vertical grooves therein has a vertical notch 1e in the axial direction of the cylinder 1b, and has elasticity capable of pressing the knurled shaft 2 so as to effectively fit and hold the knurled shaft 2. to emerge.

Here, even if the round shaft 2a is deflected due to the fitting between the knurled shaft 2 and the cavity 1d of the heir 1, the round shaft 2a and the cavity 1C can be fitted closely and accurately, so that the heir 1 No vibration occurs.

The pedestal mounting structure of the present invention is extremely convenient for devices that need to be rotated continuously, such as television channel selection pedigrees, because vibration is hardly noticeable.

Incidentally, instead of the group of vertical grooves on the knurl shaft 2, the grooves may be F-cut or polygonal.

In addition, 3 is a panel, 4 is a mounting chassis, and 5 is a flywheel.

In this way, the present invention is excellent as a legitimate child because the swing of the legitimate child can be suppressed to a minimum, and it is also better than the conventional groove 8.
(Fig. 1) becomes unnecessary.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a conventional mounting structure for a legitimate child, Fig. 2 and subsequent figures are diagrams showing one embodiment of the mounting structure for a legitimate child of the present invention, Fig. 2 is a side sectional view thereof, and Fig. 3 a and b are diagrams of a mounting structure for a legitimate child. A side view and a front view of the cylindrical portion of the illegitimate child, and FIG. 4 are views showing a state in which the illegitimate child is removed from the shaft.

Claims (1)

[Scope of utility model registration request] A round shaft is formed at the tip of the knurled shaft,
A cylindrical portion having a cavity into which the knurled shaft can be fitted and a cavity which is connected to this cavity and into which the round shaft can be fitted closely and accurately is formed at the center of rotation of the eldest child;
A mounting structure for a legitimate child, characterized in that a cylindrical portion corresponding to the knurled shaft has a resilient structure when both shafts are inserted into the rain cavity.