JPH0623206U - Variable resistor driver guide - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] When rotating the rotor to obtain the specified resistance,
The driver is easily applied to the screw groove formed on the upper surface of the rotor at the correct position to smoothly rotate the rotor. The housing portion 18 between the rotor accommodating hole portions 5 formed in the recess 3 of the housing 2 is formed in the tapered guide portion inclined toward the rotor accommodating hole portion 5 from the annular scale portion of the housing 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a driver guide unit used for rotating a rotor of a variable resistor.

[0002]

[Prior art]

 In the variable resistor of the conventional example, the rotor 4 is rotatably housed in the housing hole 5 provided in the housing 2, and the rotor insertion hole groove 6 is formed in the upper end of the rotor 4 to insert the rotor driver. By inserting a Phillips screwdriver or the like and rotating the rotor 4 in a predetermined direction, although not shown, the contact member provided on the rotor 4, for example, a wiper or the like is installed on the base provided in the case 2 By sliding on the body to move the position, a predetermined resistance value is obtained. Reference numeral 7 is an annular scale portion for measuring the rotation of the rotor 4. Further, pin terminals 8, 10 and 12 connected to the resistor body or electrode body are projected below the case 2, and these pin terminals are inserted into a printed circuit board or the like to be electrically connected and serve as a variable resistor. It has an effect. A surface of the upper end portion 14 of the rotor 4 having a Phillips screw groove 6 for rotating the rotor 4 by inserting a Phillips screwdriver or the like is formed to be flush with the upper surface 16 of the case 2. Has been done.

[0003]

[Problems to be solved by the device]

 When a screwdriver or the like is applied to the positive screw groove 6 of the rotor 4 to rotate the rotor 4 to obtain a predetermined resistance value, the upper surface 14 of the rotor 4 and the upper surface 16 of the housing are on the same plane. With such a configuration, a Phillips screwdriver or the like may not be able to be quickly and accurately inserted into the Phillips screw groove 6 of the rotor, which makes the rotation of the rotor troublesome and correct rotation of the rotor. However, there were some problems such as not being able to quickly.

[0004]

Means and Actions for Solving the Problem In order to solve the above problems, the rotor driver guide portion of the present invention has a rotor accommodating hole portion 5 formed in the recess 3 of the housing 2 from the annular scale portion 7 of the housing 2. The housing portion 18 between the two is formed as a tapered guide portion that is inclined toward the rotor accommodating hole portion 5. When a Phillips screwdriver or the like is applied to the Phillips screw groove 6 of the rotor 4 to rotate the rotor 4, the tip of the screwdriver is guided along the inclined surface of the tapered guide portion 18 into the recess 3. It slips in and is inserted into the plus thread groove 6 and easily and quickly engages with the plus thread groove 6. Therefore, the rotor 4 can be operated quickly and accurately by using a Phillips screw or the like.

[0005]

【Example】

 FIG. 1 is a partially cutaway view of a variable resistor according to the present invention, and FIG. 2 is a plan view of the variable resistor. A tapered guide portion 18 is formed from the annular graduation portion 7 provided on the upper surface 16 of the housing 2 toward the upper surface 14 of the rotor in the direction of the rotor hole portion 5 provided in the recess 3 of the housing 2. The other related members of the variable resistor according to the present invention have been already described in the description of the conventional example, and therefore will be omitted.

[0006]

【effect】

 The tip of the Phillips screwdriver is guided along the annular graduation on the top of the housing and the recess of the housing, and the inclined surface of the tapered guide that is installed toward the top of the rotor, and slides into the recess of the housing. Inserted and engaged in the thread groove, enabling quick and accurate rotation of the rotor.

[Brief description of drawings]

FIG. 1 is a partial cutaway view of a variable resistor according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG.

[Explanation of symbols]

 2 Housing 3 Recess of Housing 4 Rotor 5 Rotor Receiving Hole 6 Positive Screw Groove 7 Annular Scale 14 Upper Surface of Rotor 16 Upper Surface of Housing 18 Tapered Guide of Housing

Claims (1)

[Scope of utility model registration request] 1. A rotor having an annular scale portion on the upper surface of the housing and a screw groove for inserting a driver formed on the upper surface is rotatably accommodated in a recess of the housing, and the rotor surface from the scale portion in the direction of the recess is an upper surface of the rotor. A driver guide part of a variable resistor in which a tapered guide part is formed on the surface of the housing so as to incline toward.