JP2533518Y2 - Magnetic head fixing mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ticket gate installed at a ticket gate of a transportation facility, a ticket vending machine installed at a station yard, and the like, and a magnetic recording medium handled by these devices. And a magnetic head fixing mechanism for installing a built-in magnetic head for magnetically recording and reproducing information in the apparatus.

[0002]

2. Description of the Related Art In recent years, automatic ticket gates, ticket vending machines, and the like have been developed to streamline ticketing operations at stations. The automatic ticket gate magnetically writes information such as the boarding station, use section, use date and time, etc. on the magnetic coating applied on the back of the ticket, and reads the information at the time of ticket entry and exit to detect illegal users. If the user inserts a so-called prepaid card in which amount information corresponding to a predetermined amount is magnetically recorded in advance at the entrance of the boarding station and gets on the board, and then inserts the prepaid card again at the exit of the getting off station, it corresponds to a use section. By automatically performing a settlement process for subtracting the amount to be paid, or by similarly processing a so-called commuter pass that can be used for a certain section for a certain period, it is possible to promote the automation of the ticket gate business.

[0003] When a so-called prepaid card in which amount information corresponding to a predetermined amount is magnetically recorded in advance and a ride section is instructed, the ticket vending machine issues a ticket in which the section information is magnetically recorded. At the same time as the sale, the processing of subtracting the amount from the prepaid card, magnetically recording the balance, and returning the remaining amount is performed. As a result, passengers can use the railway or the like without carrying money.

In such an apparatus, since various processes are realized by recording / reproducing information via the magnetic recording medium, accurate recording / reproduction is performed and some abnormality occurs. In such a case, a magnetic recording / reproducing mechanism having a mechanism that facilitates maintenance is required.
For example, regarding the automatic ticket gate installed at the ticket gate of a railway station, when a user inserts a ticket or a commuter pass into an entrance provided at one end of the automatic ticket gate, these are transmitted by an internal transport mechanism. A ticket is conveyed, information is magnetically recorded or reproduced by a recording / reproducing head provided in the middle of the conveying path, and then returned to the user from a return port at the other end.

[0005] The recording / reproducing head is of a precise type capable of recording and reproducing a plurality of tracks (may be up to 10 tracks) simultaneously when these tickets are conveyed. For recording and reproducing a large number of tracks on a magnetic coating surface having a limited width such as a ticket or a commuter pass, excellent precision accuracy is required. Furthermore, since tickets and commuter passes are stained with dirt, or are used by a large number of users, there is a problem of dirt attached to the recording / reproducing head, and the dirt is cleaned and removed as appropriate. Maintenance such as removal of a ticket stuck in the mechanism is extremely important.

[0006] In order to solve such a problem, conventionally,
A magnetic head fixing mechanism disclosed in Japanese Patent Application Laid-Open No. 1-61676 and Japanese Utility Model Application Laid-Open No. 2-20810 is known. According to these techniques, the recording / reproducing head is installed in the middle of a transport mechanism for transporting a ticket or the like, and a pinch roller is provided to face the head surface, and the ticket transported by the transport mechanism is provided. The information on the magnetic coating film is recorded and reproduced while urging the head with the pinch roller. When cleaning and removing dirt and the like on the magnetic head, the pinch roller is moved so as to avoid a distance from the head surface of the recording / reproducing head, thereby securing a space (gap) where the head surface can be cleaned. It has a configuration.

[0007]

However, in such a conventional magnetic head fixing mechanism, one end of the pinch roller is supported so as to oscillate in the same direction as the transport direction. In the case of cleaning or the like, the pinch roller is separated from the head surface of the magnetic head by swinging in this direction.

As a result, when installing the magnetic head fixing mechanism in an automatic ticket gate, it is necessary to secure a space in the transport direction in advance to allow the pinch roller to swing, thereby saving space. Had a problem. In particular, such an apparatus for automation not only performs recording / reproduction with a magnetic head, but also a printing mechanism for printing a settlement amount and a date on the paper surface of a magnetic recording medium in the middle of a transport mechanism, an optical processing, and the like. A punch mechanism for punching a hole at one end of the magnetic recording medium, and other various mechanisms are connected in the transport direction to perform various types of information processing by these mechanisms in one transport operation. Since improvements have been made, space saving in the transport direction has become a very important issue.

Also, the internal space of such an apparatus for automation is extremely limited, and if the magnetic head fixing mechanism is integrated and permanently incorporated into the transport mechanism, adjustment or repair may be performed at a later date. It is extremely difficult and troublesome to replace the magnetic head fixing mechanism itself, so it can be easily attached and detached and easily adjusted and repaired while being removed from the transport mechanism. There has been a demand for a magnetic head fixing mechanism that can perform the above.

The present invention has been made in view of such a problem, and provides a magnetic head fixing mechanism capable of easily performing cleaning and adjustment and realizing space saving in a transfer direction of a magnetic recording medium. The purpose is to provide.

[0011]

In order to achieve the above object, the present invention provides a fixing mechanism for fixing a magnetic head in a direction perpendicular to a conveying direction of a conveying mechanism, and a pinch roller mechanism for the fixing mechanism. And a locking mechanism for removably locking the pinch roller mechanism at one end of the fixing mechanism, and a head surface of the magnetic head. A unit is provided with various adjustment mechanisms for adjusting the surface facing the pinch roller mechanism so as to match the conveyance surface of the conveyance mechanism.

[0012]

With this configuration, the pinch roller mechanism is supported so as to be able to swing in the direction perpendicular to the above-described transport direction and does not swing in the transport direction, so that space can be saved in the transport direction. , Cleaning work and the like can be facilitated. Further, since the unit is formed as a unit, for example, it can be separately adjusted in a state where it is detached from the automatic ticket gate, and the workability can be improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a magnetic head fixing mechanism according to the present invention will be described below with reference to the drawings. First, the external structure of the embodiment will be described with reference to FIGS. FIG. 1 is a plan view,
FIG. 2 is a plan view showing a state where the pinch roller mechanism is swung to the open side, and FIG. 3 is a top view shown from the mark A side in FIG.

In FIG. 1, reference numeral 1 denotes a magnetic head, which is supported between a first hold base 2 and a head base 3 disposed on the left and right sides thereof with a spacer 4 and a movable block 5 having a structure to be described later interposed therebetween.・ Fixed. Reference numeral 6 denotes a pinch roller mechanism having rollers 6a and 6b for opposing the head surface of the magnetic head 1. The right end of the roller axle 7, which is the central axis, is provided at the upper end of the head base 3. It is swingably supported by the mechanism 8.

A locking mechanism for locking between the left end of the roller axle 7 of the pinch roller mechanism 6 and an L-shaped movable hook 9 connected to the upper end of the first hold base 2. 10 are provided. As shown in FIG. 1, when the locking mechanism 10 is locked to the movable hook 9, the pinch roller mechanism 6 is tilted toward the head surface of the magnetic head 1 while being supported by the support mechanism 8, and the roller section When the locking mechanism 10 is removed from the movable hook 9 and pulled up in the direction of arrow B as shown in FIG. The pinch roller mechanism 6 can be released from the magnetic head 1 by swinging while the mechanism 6 is supported by the support mechanism 8.

Next, a description will be given of a mounting structure when this magnetic head fixing mechanism is mounted on an automatic ticket gate installed at a ticket gate of a station. Inside the automatic ticket gate, three transport belts 11a to 13b are arranged in a positional relationship as shown in FIG. Then, the three transport belts 11b, 12b, 13b overlap with the three transport belts 11a, 12a, 13a located on the upper side, respectively, and move integrally along the longitudinal direction (transport direction) D. I do. That is, each of the transport belts 11a, 12a, and 13a is an annular belt wound around a predetermined pulley (not shown), and each of the transport belts 11b, 12b, and 13b is another pulley (not shown). ), Which are driven by rotating these pulleys.
a to 13b are rotated, and each pair of the transport belts (11a and 11b, 12a and 12b, 13a and 13
The ticket 14 and the commuter pass 15 are transported in the transport direction D while nipping the ticket 14 and the commuter pass 15 during the period b) (hereinafter referred to as a transport reference plane). In addition, according to the size of a ticket and a commuter pass as a magnetic recording medium, the sheet is conveyed by a predetermined conveying belt among the three conveying belts.

Then, as shown in FIGS. 1 to 3, these transport belts 11a to 13b are arranged such that the magnetic head 1 and the pinch roller mechanism 6 sandwich the magnetic belt 1 from the side orthogonal to the transport direction. Install the fixing mechanism. To perform this mounting operation, as shown in FIG. 2, the pinch roller mechanism 6 is opened, and the head surface of the magnetic head 1 is positioned on the same plane as the transport reference surfaces of the transport belts 11a to 13b. After fixing the head base 3 to a predetermined position such as a housing of the transport mechanism by screwing or the like, the pinch roller mechanism 6 is tilted to interlock the locking mechanism 10 and the movable hook 9 as shown in FIG. Stop. Therefore, the opposing surfaces of the roller portions 6a and 6b of the pinch roller mechanism 6 and the head surface of the magnetic head 1 coincide with the conveyance reference surfaces of the conveyance belts 11a to 13b, so that the conveyance belts 11a to 13b
The ticket or the like conveyed by being pinched by the head passes between the roller portions 6a and 6b of the pinch roller mechanism 6 and the head surface of the magnetic head 1 provided at a position opposed thereto,
At the time of this passage, the magnetic head 1 performs magnetic recording or reproduction on the magnetic coating film applied to the back surface of the ticket or the like. Although not shown, the magnetic head 1 is a multi-head type that simultaneously records and reproduces a plurality of tracks, and is capable of recording and reproducing a plurality of tracks (for example, 10 tracks) on the head surface in a direction orthogonal to the transport direction. Head grooves are provided at predetermined intervals.

Further, the magnetic head fixing mechanism is provided with an adjusting mechanism for finely adjusting the positional relationship between the magnetic head 1 and the pinch roller mechanism 6 and the transport belt to perform highly accurate recording / reproducing. And will be described in detail below. FIG.
Is the first hold base 2 excluding the pinch roller mechanism 6
FIG. 6 is an exploded perspective view showing the base head 3 without the pinch roller mechanism 6, and FIG. 7 is an exploded perspective view showing a main part of the locking mechanism.

In FIGS. 5 and 6, a fitting groove 16 for fitting the base of the movable hook 9 is formed on the back side of the first hold base 2, and a pair of positions is formed at the bottom of the fitting groove 16. The decision pins 17 and 18 are erected vertically at predetermined intervals. On the other hand, at the base of the movable hook 9, there are formed long holes 19, 20 through which the positioning pins 17, 18 penetrate to the back surface and protrude when fitted into the fitting groove 16. Further, screw holes 21 and 22 are formed at the base of the movable hook 9, and elongated holes 23 and 24 are formed in the first hold base 2 at positions opposed to the screw holes 21 and 22. Yes, first
The male screw 57 is inserted into the screw holes 21 and 22 from the long holes 23 and 24 while the hold base 2 and the movable hook 9 are fitted to each other.
The screws 58 are fixed together by screwing. Each of the elongated holes 19, 20, 23, and 24 is a slightly elongated hole along the longitudinal direction of the first hold base 2 and the movable hook 9.

Further, through holes 25 and 26 are formed at two thick portions of the first hold base 2 in the same direction as the direction in which the positioning pins 17.18 are erected.
58 is inserted. Reference numeral 27 denotes a small hexagonal set screw which is screwed into a screw hole (not shown) formed from the bottom of the first hold base 2 to the fitting groove 16 and is screwed. The relative displacement of the movable hook 9 with respect to the first hold base 2 in the longitudinal direction can be adjusted by changing the amount of protrusion of the 27 from the fitting groove 16. A hexagon socket head screw screwed into the screw hole
The jaws 27 constitute a second adjusting mechanism.

Further, a screw hole 28 is formed at the upper end of the L-shaped movable hook 9 so as to penetrate from the bottom to the upper side, and a projection 28a projects from the upper end. Next, the spacer 4 is formed with a long groove 29 into which the positioning pins 17 and 18 protruding through the long holes 19 and 20 of the movable hook 9 are fitted. That is, the length of the long groove 29 in the longitudinal direction is designed to be substantially equal to the interval between the positioning pins 17 and 18, and the spacer 4 is held in the first hold by strong fitting between the positioning pins 17 and 18 and the long groove 29. The structure is such that it is assembled integrally with the base 2.

Reference numerals 30 and 31 denote through holes formed in a positional relationship facing the through holes 25 and 26 of the first hold base 2. Reference numerals 32, 33 denote positioning pins provided upright on the spacer 4, and the positioning pins 17,
18 and are fixed in the same direction.

The movable block 5 has a screw hole 34 formed in the same direction as the long holes 25 and 30 and a screw hole 35 formed in the same direction as the long holes 26 and 31.
A pair of positioning pins 36 and 37 facing the hold base 2 and the head base 3 are press-fitted and fixed at a predetermined interval, and a concave step portion 40 is formed in a corner portion on the positioning pin 37 side. ing.

The head base 3 is formed with a fitting groove 41 into which the positioning pins 36 and 37 of the movable block 5 are fitted, and a slot 42 and a hole 42 at positions facing the screw holes 34 and 35.
43 are drilled. In addition, both the long holes 42 and 43 are formed long in the same longitudinal direction as the fitting groove 41. Further, an elongated hole 44 is formed on one side of the extension of the fitting groove 41, and both sides of the elongated hole 44 are thick convex steps 45, 46. Further, the convex steps 45, 46 are formed. A pinch roller mechanism 6
The support portions 47 and 48 for swingably supporting the roller axle 7 are formed. An end of the roller axle 7 is fitted between the support portions 47 and 48, and a hole (not shown) formed in a side end of the end of the roller axle 7 and a hole are formed facing the support portions 47 and 48. The support pin 51 is fitted via a washer or the like in a state where the support holes 49 and 50 communicate with each other, thereby forming a support mechanism 8 that swingably supports the roller axle 7 of the pinch roller mechanism 6.

Reference numeral 52 denotes a square adjusting member which is loosely fitted between the convex portions 45 and 46, and has a screw hole 54 which is screwed with a male screw 53 inserted from the back side of the elongated hole 44. Therefore, the position where the male screw 53 and the adjusting member 52 are fixed can be slightly adjusted within the movable range of the elongated hole 44 in the longitudinal direction. Further, at the bottom end of the head base 3, a protruding step 55 projecting toward the concave step 40 of the movable block 5 is formed.
The movable block 5 is fitted between the protruding steps 45 and 46 and the protruding step 55 in such a manner that the movable blocks 5 are combined. When this fitting is performed, the positioning pins 36 and 37 are firmly fitted into the fitting grooves 41.

Reference numeral 56 denotes a hexagon socket head set screw which is screwed into a screw hole (not shown) formed to penetrate from the outside to the inside of the convex step portion 55, and the movable block 5 is fitted into the head base 3. In the state, the entering amount of the hexagon socket set screw 56 and the male screw 53
By adjusting the position where the movable block 5 is fixed to the head base 3, the position where the movable block 5 is attached to the head base 3 in the longitudinal direction can be adjusted. The screw
The hexagon socket set screw 56 screwed into the hole is a first adjusting mechanism.
Is composed.

As shown in the vertical sectional view of FIG. 8, the magnetic head 1 has a fitting groove 1a formed at a side end of the spacer 4 facing the positioning pins 32 and 33, A fitting groove 1b formed at a side end facing the positioning pins 36 and 37 and a pair of through holes (shown by dotted lines in the drawing) penetrating long screws 57 and 58 described later are formed in advance.

Then, as shown in the vertical sectional view of FIG. 8, the movable hook 9 and the spacer 4 are assembled to the first hold base 2, the movable block 5 is assembled to the head base 3, and the spacer 4 With the magnetic head 1 sandwiched between the movable blocks 5, the long screw 57 is screwed into the screw hole 34 through the long holes 25, 30 and one through hole of the magnetic head 1, and the long screw 58 is inserted into the long hole. Each member and the magnetic head 1 are integrally assembled by screwing into the screw holes 35 through the other through holes 26 and 31 and the magnetic head 1. still,
As described above, the position of the movable hook 9 with respect to the first hold base 2 and the position of the head base are adjusted by adjusting the amounts of the hexagon socket set screws 27 and 56 and the positions of the adjusting member 52 and the male screw 53. The mounting position of the magnetic head 1 with respect to the magnetic head 3 can be further finely adjusted, thereby achieving fine adjustment for making the head surface of the magnetic head 1 coincide with the transfer reference surface of the transfer mechanism.

Next, the structure of the locking mechanism 10 will be described. As shown in FIG. 7, a rectangular connecting member 59 is fixedly attached to an end of the roller axle 7, and a support hole 60 is provided at an upper end of the connecting member 59.
Are drilled. Reference numeral 61 denotes a rocker arm, which connects a pair of support protrusions 61a and 61b extending from one end to the connecting member 5.
9 and the support pins 61c and 61d formed in the support protrusions 61a and 61b, the support pin 62 inserted in the support hole 60, and a washer (not shown).
It is swingably supported by the connecting member 59.

Reference numeral 61e denotes a screw hole provided at the side end of the rocker arm 61 toward the connecting member 59.
3 is screwed. Reference numeral 64 denotes a metal roller rotatably supported between the other support protrusions 61f and 61g of the rocker arm 61, and a knob 65 is fixed to the opposite end of the roller 64.

As shown in FIG. 1, the adjusting screw 6 is screwed into a screw hole 28 formed at the upper end of the movable hook 9.
The roller 64 of the rocker arm 62 is locked to the head of No. 6, and the locking friction can be adjusted by the screwing amount. As described above, the locking mechanism 10 tilts the pinch roller mechanism 6 so that the connecting member 59 abuts on the distal end of the movable hook 9, and then pushes the rocker arm 61 toward the adjustment screw 66 so that the roller 64 The other end of the pinch roller mechanism 6 (the side opposite to the support mechanism 8) is fixed to the movable hook 9 by strongly locking the head of the adjustment screw 66 with the head.
Conversely, the pinch roller mechanism 6 is released from the magnetic head 1 as shown in FIG. 2 by releasing the locking of the roller 64 and the adjusting screw 66 by pulling the rocker arm 61 and lifting it upward. 1. To secure a space for cleaning and adjusting the head surface.

The locking force between the roller 65 and the adjusting screw 64 can be appropriately adjusted by adjusting the screwing amounts of the adjusting screws 63 and 66. Next, the pinch roller mechanism 6
The structure of will be described. In FIG. 8, which shows a longitudinal section of the magnetic head fixing mechanism, a cylindrical cylinder 6c is rotatably supported on a roller axle 7 via ball bearings 68, 68, and an ether-based synthetic material such as polyurethane is provided on the peripheral side of the cylinder 6c. Rollers 6a and 6b made of resin are provided by baking, and concave portions 6e and 6f into which the conveyor belt is fitted are formed in a circular shape on the side surface of the cylinder 6c.

The spacer 4 is interposed between the first hold base 2 and the magnetic head 1 to hold the magnetic head 1, and has the same width as the distance between the first hold base 2 and the movable block 5. When the magnetic head is fixed, the spacers 4 are omitted, and the positioning pins 17, 18 protruding from the first hold base 2 are firmly fitted into the fitting grooves of the magnetic head.

As described above, according to this embodiment, the pinch roller mechanism 10 is supported so as to swing in the direction perpendicular to the transport direction of the transport mechanism.
Space saving in the transport direction can be realized. or,
By providing each of the adjustment mechanisms described above, the fine adjustment of the interval between the pinch roller mechanism 10 and the head surface of the magnetic head 1 and the fine adjustment for making the pinch roller mechanism 10 and the magnetic head 1 coincide with the transport reference plane can be performed with high precision. In addition, since it is configured as a single unit, it can be easily attached to and detached from the transport mechanism, so that repair and adjustment can be performed independently of the transport mechanism, and operability is improved. .

[0035]

As described above, according to the present invention, the pinch roller mechanism is swingably supported in a direction perpendicular to the transport direction of the transport mechanism, so that space can be saved in the transport direction. In addition, cleaning work and the like can be facilitated. Furthermore, since the mechanism for attaching the pinch roller mechanism to the magnetic head is unitized, for example, adjustment can be performed separately in a state where the pinch roller mechanism is detached from the automatic ticket gate, and workability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing the structure of a magnetic head fixing mechanism according to an embodiment.

FIG. 2 is a plan view showing the structure of the magnetic head fixing mechanism of the embodiment with the pinch roller mechanism in an open state.

FIG. 3 is a top view showing the structure of the magnetic head fixing mechanism of the embodiment as viewed from a pinch roller mechanism side.

FIG. 4 is a partial perspective view showing a main structure of a transport mechanism such as an automatic ticket gate.

FIG. 5 is an exploded perspective view showing the structure of the magnetic head fixing mechanism of the embodiment, omitting a pinch roller mechanism.

FIG. 6 is an exploded perspective view showing a structure of a magnetic head fixing mechanism of the embodiment, omitting a pinch roller mechanism.

FIG. 7 is an exploded perspective view of a main part for describing a structure of a locking mechanism.

FIG. 8 is a longitudinal sectional view showing the structure of the magnetic head fixing mechanism of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Magnetic head 2; 1st hold base 3; Head base 4; Spacer 5; Movable block 6; Pinch roller mechanism 6a, 6b; Roller part 7; Roller axle 8; Support mechanism 9; Movable hook 10; 11a, 12a, 13a, 11b, 12b, 13b; conveyor belts 16, 41; fitting grooves 17, 18; positioning pins 19, 20, 23, 24; elongated holes 21, 22, 28, 34, 35, 54; Screw holes 25, 26, 30, 31; through holes 27, 56; hexagon socket set screw 28a; protrusion 29; long grooves 32, 33, 36, 37; positioning pins 40; concave steps 42, 43, 44; Holes 45, 46; convex portions 49, 50, 60; support holes 51, 62; support pins 52; adjusting members 53; male screws 55; convex steps 57, 58; long screws 59; connecting members 61; Arm 63, 66; Adjustment screw 68; Ball bearing

Claims (2)

(57) [Scope of request for utility model registration] 1. A magnetic head fixing mechanism for fixing a magnetic head for performing magnetic recording or reproduction of information on a magnetic recording medium conveyed in a predetermined conveyance direction along a predetermined conveyance reference plane, wherein: A first hold base (2) supported by a spacer (4) on one of the side ends of the magnetic head (1) and a movable block (5) on the other of the side ends.
And a pinch roller mechanism (6) at one end of the head base (3).
A support mechanism (8) that faces the head surface of the magnetic head (1) and swingably supports in a direction perpendicular to the transport direction; and a movable block (5) supported by the head base (3). ) Is adjusted toward the pinch roller mechanism (6).
And a movable hook supported by the first hold base (2).
(9) a second moving adjustment to said pinch roller mechanism (6) side
And a locking mechanism (10) for detachably locking the pinch roller mechanism (6) and the movable hook (9). A first adjusting mechanism for moving the head base;
Adjustment screw (56) screwed into the screw hole
The movable block (5) is moved forward and backward, and the second adjusting mechanism passes through the first hold base (2).
Adjustment screw (27) screwed into the threaded hole
The movable hook (9) is moved forward and backward.
2. The magnetic head fixing mechanism according to claim 1, wherein: