JPH073520Y2 - Motor mounting structure for card reader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a card reader for reading magnetic information recorded on a magnetic card, writing information on the magnetic card, etc. The present invention relates to a mounting structure for a motor used as a driving means of a motor.

[Prior Art] In general, a card reader of this type for reading magnetic information recorded on various magnetic cards such as telephone cards, recording information on the magnetic card, and confirming the information includes a conveyor belt and the like. And is driven by a drive motor. The most general mounting structure of such a drive motor is to fix it to a bracket mounted on the housing of the device with a set screw.

[Problems to be solved by the invention] However, in such a conventional motor mounting structure for a card reader, the fixing work is troublesome because it is fixed by the set screw, and the set screw is removed at the time of maintenance and adjustment. If the screw holes are screwed or screwed again, there is a problem that the screw holes eventually become ridiculous holes and cannot be used. Also, mounting the bracket is troublesome,
It has a problem of increasing the number of work processes.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to mount a drive motor on a motor of a card reader so that the drive motor can be mounted with one touch without using a set screw. To provide the structure.

[Means for Solving the Problems] In order to achieve the above object, the present invention integrally provides a motor mounting portion having a recessed portion on an outer surface of a side plate forming a housing of a card reader, and an inner surface of the recessed portion. , A motor holding portion having an undercut structure for holding the outer peripheral portion of the motor to prevent the motor from coming off is integrally projected, and a rotation preventing boss portion engaging with a mounting screw hole provided in the motor is also integrally projected. It was set up.

[Operation] In the present invention, when the drive motor is fitted into the housing recess of the motor mounting portion, the motor holding portion holds the motor and the rotation preventing boss portion is engaged with the screw hole of the drive motor. Further, the motor holding portion has an undercut portion to prevent the drive motor from coming off.

[Embodiment] Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is an exploded perspective view showing an embodiment of a motor mounting structure according to the present invention, FIG. 2 is a schematic sectional view of a card reader, and FIG.
FIG. 4 is a plan view showing the inside of the card reader with the cover removed, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, and FIG. 5 is a sectional view taken along the line VV of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. In these figures, 1 is a base that is long in the front-rear direction, 2 is a cover that covers the upper surface of the base 1, and
These form a box-shaped housing 3 which is long in the front-rear direction.

The base 1 is provided with a bottom plate 4 and a pair of left and right side plates 5 and 6 which extend vertically at both ends of the bottom plate 4 and face each other in parallel with each other. A card guide surface 8 for guiding the lower surface is formed. A slit-shaped card insertion / return port 9 into which the magnetic card 7 can be inserted is formed between the front end surface of the base 1 and the cover 2 at the same height as the card guide surface 8.

Inside the housing 3, there are provided a card intake passage 10 communicating with the card insertion / return opening 9, and a card transport passage 11 continuously provided at the back end of the card intake passage 10 and a card. A sensor 12 (12a to 12f) for detecting a card, a card carrier 13 for taking in the magnetic card 7 inserted in the card insertion / return port 9 and reciprocating along the card carrier path 11,
The shutter mechanism 14 for preventing the insertion of the second card, the magnetic head 15 for reading, writing and confirming the magnetic information of the magnetic card 7, the touch roller 16 for pressing the magnetic card 7 against the magnetic head 15, and the magnetic card 7 Various mechanisms and parts such as a punch mechanism 17 for forming small holes are incorporated.

The card conveying means 13 is provided rotatably on the base 1 via four bearings 21 and a total of four rollers 20a to 20d which are vertically opposed to each other with the card card conveying path 11 interposed therebetween. The four shafts 22a to 22d and the upper roller 20
The conveyor belt 23 is stretched between a and 20b. The lower rollers 20c and 20d are arranged on the lower surface side of the bottom plate 4 of the base 1, and a part of the peripheral surface thereof projects from the opening 24 provided in the bottom plate 4 to the upper surface side of the bottom plate 4. Then, one end of the shaft 22b projects to the outside of the right side plate 6, and the worm 27 provided on the output shaft 26 of the drive motor 25 (described later) is provided at the projecting end.
A worm wheel 28 that meshes with is attached.

The shutter mechanism 14 is located immediately after the card insertion / return port 9 and opens the normal card loading passage 10. When the first card is loaded, the shutter mechanism 14 operates by the card insertion detection signal from the card insertion detection sensor 12a. By doing so, the card intake passage 10 is closed to prevent the insertion of the second card. The solenoid 30 disposed on the lower surface side of the base 1 and the lower surface of the cover 2 facing the solenoid 30. And the sheet magnet 31 embedded in the. The movable iron core 32 of the solenoid 30 is normally at the lowest position and opens the card intake passage 10. When the solenoid 30 is energized and excited, the solenoid 30 is attracted and lifted to be attracted and held by the sheet magnet 31, and the card intake passage. Close 10

The punch mechanism 17 is a conventionally well-known one composed of a punch stand 34 and a solenoid 35 which are vertically opposed to each other with the card intake passage 10 interposed therebetween.
By piercing a small hole, the approximate balance information remaining depending on the piercing position is displayed. A punch pin (not shown) is integrally provided on the upper end of the movable iron core 36 of the solenoid 35.

On the outer surface of the rear end of the right side plate 6 of the base 1, a motor mounting portion 41 having a recessed portion 40 that opens upward and accommodates the drive motor 25 is integrally formed with the base 1 by molding. Has been formed. The recess 40 has a semi-circular arc shape, and a pair of front and rear arc-shaped projections 42a, 42b for receiving and holding the lower half of the outer peripheral surface of the drive motor 25 are integrally provided on the inner bottom surface thereof, and the arc-shaped projection 42a, Vertical walls 44 that restrict the lateral movement of the drive motor 25 are integrally provided at both ends of the 42b so as to project upward. Further, four motor holding portions 45, which hold both sides of the outer peripheral surface of the drive motor 25, are provided on both sides of the inner peripheral surface of the recess 40 so as to face each other.
The upper ends of these motor holding portions 45 form an undercut portion 45a at the time of molding, and the upper portion of the maximum horizontal diameter of the drive motor 25 projects toward the center of the recess 40 as shown in FIG. This prevents the drive motor 25 from coming off. The motor contact surface of each motor holding portion 45 is curved in an arc shape so that a portion below the maximum horizontal diameter of the drive motor 25 is substantially vertical and an upper portion thereof is in close contact with the outer periphery of the drive motor 25 in a uniform manner. There is. Since the motor holding portion 45 constitutes an undercut on the inner bottom surface of the recessed portion 40, a die removing hole 46 is formed. A pair of left and right rotation preventing bosses 49a, 49b are provided on the inner surface of the front wall 48 of the recess 40, and a mounting screw hole 50 is provided at the output shaft side end surface of the drive motor 25.
It is integrally provided so as to face a and 50b.

In such a configuration, when mounting the drive motor 25, the drive motor 25 is press-fitted into the recess 40 of the motor mounting portion 41 from above, and the rotation preventing boss portions 49a and 49b are attached to the mounting screw holes 50a and 50b. They may be engaged with each other. During press fitting, the motor holding portion 45 is pressed and deformed outward by the motor, and when the maximum horizontal diameter portion of the drive motor 25 passes through the upper end portion of the motor holding portion 45, that is, between the undercut portions 45a, the motor holding portion 45 returns to its original state and the drive motor 25 The outer peripheral surface of is clamped from both sides to prevent it from coming off. In addition, rotation prevention bosses 49a, 49b
Engages with the mounting screw holes 50a, 50b to prevent rotation of the drive motor 25 itself.

In this case, the mounting screw holes 50a and 50b of the drive motor 25 are preliminarily provided in most commercially available products, and it is not necessary to specially form them.

Thus, according to the motor mounting structure having such a configuration, since the drive motor 25 only needs to be press-fitted and fixed to the motor mounting portion 41 of the base 1, no fixing means such as a set screw is required, and the number of parts can be reduced. In addition to making it possible, the mounting work is very simple and the assembling workability can be improved. Further, since the base 1 and the motor mounting portion 41 are integrally molded,
Since no bracket or the like is required, the number of parts and the number of assembly work steps can be reduced from this point as well.

In the above embodiment, the case in which the housing 3 is installed horizontally is used, but the present invention is not limited to this, and it goes without saying that the card insertion / return port 9 may be used vertically so that it is vertical. is there.

[Advantages of the Invention] As described above, according to the motor mounting structure of the card reader according to the present invention, the drive motor can be mounted with one touch without using a fixing means such as a set screw. The number of man-hours can be reduced, and productivity and manufacturing cost can be reduced, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a motor mounting structure according to the present invention, FIG. 2 is a schematic sectional view of a card reader, and FIG.
FIG. 4 is a plan view showing the inside of the card reader with the cover removed, FIG. 4 is a sectional view taken along the line IV-IV of FIG. 3, and FIG. 5 is a sectional view taken along the line VV of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 1 ... base, 2 ... cover, 3 ... enclosure, 4 ... bottom plate,
5, 6 ... Side plate, 7 ... Magnetic card, 9 ... Card insertion and return port, 40 ... Recessed portion, 41 ... Motor mounting portion, 45 ...
Motor clamping part, 45a ... Undercut part, 49a, 49b ...
… Rotation prevention bosses, 50a, 50b …… Mounting screw holes.

Claims (1)

[Scope of utility model registration request] 1. An undercut for integrally mounting a motor mounting portion having a recessed portion on an outer surface of a side plate forming a housing of a card reader, and holding an outer peripheral portion of the motor on an inner surface of the recessed portion to prevent the motor from coming off. A motor mounting structure in a card reader, characterized in that a motor holding portion of the structure is integrally projected, and a rotation preventing boss portion that engages with a mounting screw hole provided in the motor is integrally projected.