JP2013156777A - Attachment mechanism, electronic equipment and medium processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a second structure to a first structure from the lower part with simple configurations and simple operations in an attachment mechanism, electronic equipment and medium processor.SOLUTION: The attachment mechanism for temporarily locking and fixing a second structure (magnetic reading device 20) from the lower part to a first structure (frame 10) includes: guide shafts 11 and 12 disposed in the first structure (10) so as to be extended downward; fixed parts formed at the top ends of the guide shafts 11 and 12 for fixing the second structure (20) to the guide shafts 11 and 12; temporary locking parts 21 and 23 disposed in the second structure (20) so as to be engaged with the guide shafts 11 and 12 for temporarily locking the second structure (20); and fixing parts disposed in the second structure (20) for fixing the second structure (20) to the fixed parts of the guide shafts 11 and 12.

Description

  The present invention includes an attachment mechanism having a temporary fixing mechanism used to fix the second structure to the first structure from below, and the first structure and the second structure. The present invention relates to an electronic device and a medium processing apparatus.

Conventionally, various methods are used for temporary fixing and fixing between objects (for example, see Patent Documents 1 to 4).
For example, in Patent Document 1, in a mounting device for a drop-off mirror for a vehicle, when a mirror stay is attached to a vehicle body inner plate, first, a bracket that is temporarily held by inserting a leaf spring is attached to the vehicle body inner plate, A method of screwing the leaf spring and the mirror stay is described.

Japanese Utility Model Publication 2-15712 Japanese Utility Model Publication No. 6-35765 JP 2010-119276 A Utility Model Registration No. 3106781

  Here, a case where a magnetic reading device, which is a precision instrument, is fixed to a frame portion of the passbook printing apparatus from below in a passbook printing apparatus used in an ATM (Automatic Teller Machine) will be considered as an example.

  Even if it is possible to pull out the passbook printer to the back or front of the ATM, the work of fixing the magnetic reader from below to the passbook printer must be careful not to drop the magnetic reader. In addition, since the arrangement space of the magnetic reading device is limited, it is necessary to take care not to cause damage due to contact with other parts, which is a very difficult operation.

The same applies to the case where a structure is fixed to another structure from below in an electronic device other than the passbook printer.
An object of the present invention is to provide an attachment mechanism, an electronic apparatus, and a medium processing apparatus that can fix the second structure to the first structure from below with a simple configuration and a simple operation. It is.

  An attachment mechanism disclosed in the present specification is an attachment mechanism that temporarily fixes and fixes a second structure to a first structure from below, and is provided on the first structure. An extending guide shaft; a fixed portion that is formed at a tip of the guide shaft and fixes the second structure to the guide shaft; and is provided in the second structure, and engages with the guide shaft. A temporary fixing portion that temporarily fixes the second structure; and a fixing portion that is provided in the second structure and fixes the second structure to the fixed portion of the guide shaft. .

  An electronic device disclosed in this specification includes a first structure, a second structure fixed to the first structure from below, and the second structure from below with respect to the first structure. An attachment mechanism for temporarily fixing and fixing the structure, wherein the attachment mechanism is provided on the first structure, and is formed at a guide shaft extending downward, and at a tip of the guide shaft, A fixed portion for fixing the second structure to the guide shaft; and a temporary fixing portion that is provided in the second structure and engages with the guide shaft to temporarily fix the second structure. And a fixing portion that is provided in the second structure and fixes the second structure to the fixed portion of the guide shaft.

  The medium processing apparatus disclosed in the present specification includes a first structure, a second structure fixed to the first structure from below, and the first structure from below with respect to the first structure. An attachment mechanism that temporarily fixes and fixes the two structures, and the attachment mechanism is provided in the first structure, and is formed at a guide shaft extending downward, and at a tip of the guide shaft, A fixed portion that fixes the second structure to the guide shaft, and a temporary fixing portion that is provided in the second structure and engages with the guide shaft to temporarily fix the second structure. And a fixing portion that is provided on the second structure and fixes the second structure to the fixed portion of the guide shaft.

  According to the mounting mechanism, the electronic apparatus, and the medium processing device disclosed in the present specification, the second structure can be fixed to the first structure from below with a simple configuration and a simple operation. .

It is a side view which shows the internal structure of a medium processing apparatus. 3 is a plan view showing an internal structure of the medium processing apparatus. FIG. It is an orthographic projection figure which shows the temporary fix | stop part and shaft receiving part of a connection state. It is an orthographic projection figure which shows a temporary fix | stop part. It is an orthographic projection figure which shows a shaft receiving part. It is VI-VI sectional drawing of FIG. It is VI-VI sectional drawing of FIG. 5 at the time of guide shaft mounting. It is a perspective view (the 1) for demonstrating the flow of attachment of a magnetic reader. It is a perspective view (the 2) for demonstrating the flow of attachment of a magnetic reader. It is a perspective view (the 3) for demonstrating the flow of attachment of a magnetic reader. It is a perspective view (the 4) for demonstrating the flow of attachment of a magnetic reader. It is a perspective view (the 5) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 1) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 2) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 3) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 4) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 5) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 6) for demonstrating the flow of attachment of a magnetic reader. It is a schematic front view (the 7) for demonstrating the flow of attachment of a magnetic reader. It is an orthographic projection figure which shows the temporary fix | stop part and shaft receiving part of the connection state in a modification. It is the right view and back view (the 1) for demonstrating the flow of temporary fixing in a modification. It is the right view and back view (the 2) for demonstrating the flow of temporary fixing in a modification. It is the left view and front view which show the guide shaft in another modification.

Hereinafter, embodiments will be described with reference to the drawings.
1 and 2 are a side view and a plan view showing an internal structure of a medium processing apparatus 1 according to an embodiment.

  The medium processing apparatus 1 is, for example, a passbook printing apparatus provided in an ATM, and includes a conveyance path 2, a roller 3, a roller drive motor 4, a medium insertion port 5, a print head 6, a platen 7, A medium position detection unit 8, a frame 10, and a magnetic reading device 20 are provided.

The frame 10 includes two guide shafts 11 and 12 and two fixing shafts 13 and 14.
The magnetic reading device 20 includes, for example, temporary fixing portions 21 and 23 that are leaf springs, shaft receiving portions 22 and 24, shaft fixing plates 25 and 26, a laterally moving magnetic head 27, and a longitudinally moving magnetic head 28. Have. The temporary fixing portions 21 and 23, the shaft receiving portions 22 and 24, and the shaft fixing plates 25 and 26 are disposed at two locations, respectively.

  The medium processing apparatus 1 conveys, for example, a bankbook medium 100 inserted by a customer through the conveyance path 2. In addition, the medium processing apparatus 1 performs read / write (read / write) on the magnetic stripe affixed to the medium 100 with the laterally moving magnetic head 27 and the longitudinally moving magnetic head 28, and the medium 100 with the print head 6 and the platen 7. Is printed.

  The conveyance path 2 conveys the medium 100 inserted therein in the insertion direction from the medium insertion port 5 and the discharge direction to the medium insertion port 5 (see FIG. 1). As shown in FIG. 2, guide portions 2 a and 2 b that restrict the position of the medium 100 in the width direction are provided at the left and right ends of the transport path 2.

  The roller 3 is rotationally driven by one of the two roller drive motors 4 shown in FIG. The rollers 3 are paired up and down, and the pair of media 100 is sandwiched between the pairs.

  Two rollers 3 are provided at regular intervals in the width direction of the medium 100, and the two rollers are provided coaxially. A plurality of rollers 20 are arranged at appropriate intervals in the transport direction (eight pairs in FIGS. 1 and 2).

The medium insertion port 5 is also a discharge port through which the medium 100 for which processing such as writing has been completed by the medium processing apparatus 1 is discharged. The medium insertion port 5 is provided, for example, on the front surface of the ATM.
The print head 6 is arranged so as to be movable in the width direction of the medium 100 together with the platen 7. At the time of printing, the medium 100 is moved in the vertical direction (insertion / ejection direction) by the roller 3 to set the position of the line to be printed. Further, the print head 6 moves in the width direction, and deposit / withdrawal or the like is printed on the sheet of the medium 100. A page turning machine groove for turning the page of the medium 100 is provided on the back side of the conveyance path 2 (not shown), and when the print page is changed, the medium 100 is located at a position where the page turning machine groove is provided. Are carried and page turning is performed.

  The medium position detection unit 8 is an optical sensor that detects the position of the conveyed medium 100. The medium position detectors 8 are arranged at appropriate intervals along the transport path of the transport path 2. Based on the detection signal from the medium position detector 8, the roller drive motor 4 that drives the roller 3 is controlled, and the medium 100 is conveyed to a position corresponding to each process.

  The horizontally moving magnetic head 27 and the vertically moving magnetic head 28 read or write signals of magnetic stripes attached to front and back covers of a passbook as an example of the medium 100. The laterally moving magnetic head 27 reads / writes the horizontal magnetic stripe of the medium 100. The longitudinally moving magnetic head 28 reads / writes the magnetic stripe in the longitudinal direction (insertion / ejection direction) of the medium 100.

  The horizontally moving magnetic head 27 and the vertically moving magnetic head 28 are controlled by a control unit (not shown) of the magnetic reading device 20. A control unit (not shown) of the magnetic reading device 20 controls the movement of the laterally moving magnetic head 27 and the longitudinally moving magnetic head 28 and controls the reading and writing of signals to the magnetic stripe.

  The horizontal movement magnetic head 27 and the vertical movement magnetic head 28 are raised to the medium 100 side only when they are retracted to a position below the medium 100 as shown in FIG. Touch the stripe surface. This is to prevent the head from being damaged by the conveyance of the medium 100.

  At the time of read / write, the horizontally moving magnetic head 27 and the vertically moving magnetic head 28 are driven to move at a constant speed along the longitudinal direction of the magnetic stripe surface while being in contact with the magnetic stripe surface. The signals read by the laterally moving magnetic head 27 and the longitudinally moving magnetic head 28 are A / D converted after amplification and further demodulated into data.

  The two guide shafts 11 and 12 and the two fixing shafts 13 and 14 are provided on the frame 10 and extend downward. As shown in FIG. 8A, the magnetic reader 20 (second structure) is fixed. Female screw portions 11b, 12b, and 13a (fixing shaft 14 is not shown) that are examples of the fixed portion to be fixed are formed at the tip. The fixed portion may be a fixing means other than a screw.

  The two guide shafts 11 and 12 face each other in the diagonal direction of the bottom surface of the frame 10, and the two fixing shafts 13 and 14 (the fixing shaft 14 is not shown) are diagonal directions of the guide shafts 11 and 12. Are opposed to each other in the diagonal direction orthogonal to each other.

  7A and 8E, the fixing shafts 13 and 14 (the other fixing shaft 14 is not shown) are attached to the shaft fixing plates 25 and 26 of the magnetic reading device 20 by screws 15. Fixed. On the other hand, the guide shafts 11 and 12 are fixed after temporary fixing as will be described later.

  As shown in FIG. 8A, the guide shafts 11 and 12 have recesses 11a and 12a formed on the outer peripheral surfaces. Further, since the tips 11c and 12c of the guide shafts 11 and 12 are tapered, the temporary fixing portion 21 shown in FIG. 3 (the temporary fixing portion 23 is not shown) and the shaft receiving portion 22 (shaft receiving portion). 24 is not shown in the figure, but is easily inserted.

  As shown in FIG. 7A, the frame 10 is formed with an opening 10a for securing a moving space for the laterally moving magnetic head 27 and an opening 10b for securing a moving space for the vertically moving magnetic head 28. ing.

  As will be described in detail later, the frame 10 is formed with two positioning butting surfaces 10c and 10d. Abutting pins 20a and 20b (see FIG. 8E) projecting upward from the magnetic reading device 20 are abutted against the positioning abutting surfaces 10c and 10d.

  FIGS. 3A and 3B are orthographic views showing the temporarily fixed portion 21 and the shaft receiving portion 22 in a connected state, (a) front view, (b) left side view, (c) right side view, (d) plan view, And (e) a bottom view is included.

  FIG. 4 is an orthographic view showing the temporary fixing part 21, and includes (a) a front view, (b) a left side view, and (c) a plan view. In addition, since the temporary fix | stop part 23 is the structure similar to the temporary fix | stop part 21, description of the temporary fix | stop part 23 is abbreviate | omitted.

  FIG. 5 is an orthographic view showing the shaft receiving portion 22 and includes (a) a front view, (b) a left side view, (c) a right side view, (d) a plan view, and (e) a bottom view. It is. Since the shaft receiving portion 24 has the same structure as the shaft receiving portion 22, the description of the shaft receiving portion 24 is omitted.

  The temporary fixing portion 21 shown in FIG. 4 is a leaf spring, and is provided so that an engagement piece 21 a that engages with the concave portion 11 a of the guide shaft 11 protrudes obliquely downward toward the guide shaft 11.

  The temporary fixing portion 21 includes an upper surface portion 21b and a right side surface portion 21c bent downward at a right angle from the upper surface portion 21b. The right side surface portion 21c in the temporary fixing portion 21 is located on the right side surface in FIG. 4, but the other temporary fixing portion 23 is located on the left side surface side, and thus becomes the left side surface portion. Thus, in particular, the positions in the front-rear and left-right directions are described only in accordance with the orientation of the drawings.

  As shown in FIG. 4C, a guide hole 21b-1 into which the guide shaft 21 is inserted from above is formed in the upper surface portion 21b. Further, connection holes 21b-2 and 21b-3 into which screws 29 for connection to the shaft receiving portion 23 are inserted are formed in the upper surface portion 21b. Of the connection holes 21b-2 and 21b-3, the connection hole 21b-2 is a round hole, and the connection hole 21b-3 is a long hole for alignment.

  As shown in FIG. 4 (b), the right side surface portion 21c is open at the periphery 21c-1 other than the base end portion of the engagement piece 21a. Further, the lower end 21c-2 of the right side surface portion 21c is partially narrowed so as to be a width that can be inserted into the opening 22c-2 of the bottom surface portion 22c of the shaft receiving portion 22. The lower end 21 c-2 inserted in this way is a pressing portion that is pressed in a direction to release the state where the temporary fixing portion 21 is engaged with the guide shaft 11.

  The shaft receiving portion 22 shown in FIG. 5 has an upper surface portion 22a, a left side surface portion 22b bent downward at a right angle from the upper surface portion 22a, and the left surface portion 22b and the upper surface portion 22a so as to face substantially horizontally. A bent bottom surface portion 22c and a pair of shaft inclination regulating portions 22d bent to the right side surface at right angles from the front side end portion and the back side end portion of the narrow width portion 22b-1 of the left side surface portion 22b, Including. The upper surface portion 22a and the bottom surface portion 22c are bent in the same direction.

  As shown in FIG. 5D, a guide hole 22a-1 for guiding the guide shaft 21 is formed in the upper surface portion 22a. Further, connection holes 22a-2 and 22a-3 into which screws 29 for connection to the temporary fixing portion 21 are inserted are formed in the upper surface portion 22a.

  As shown in FIG. 5E, a guide shaft fixing hole 22c-1 is formed in the bottom surface portion 22c. The guide shaft fixing hole 22c-1 is inserted with the screw 15 shown in FIG. 8C, which is screwed into the female screw portion 11b of the guide shaft 11 shown in FIG. 8A, from below. The screw 15 and the bottom surface portion 22c fixed to the female screw portions 11b and 12a of the guide shafts 11 and 12 by the screw 15 are examples of fixing portions that fix the magnetic reading device 20 to the guide shafts 11 and 12. .

  The shaft inclination restricting portion 22d forms a U-shape together with the narrow portion 22b-1 of the left side surface portion 22b in the plan view of FIG. 5D and the cross-sectional views of FIGS. 6A and 6B. . The shaft inclination restricting portion 22d restricts insertion of the guide shaft 11 while being inclined when the guide shaft 11 is inserted.

Hereinafter, attachment of the magnetic reading device 20 to the frame 10 of the medium processing apparatus 1 will be described.
FIGS. 7A to 7E and FIGS. 8A to 8G are a perspective view and a schematic front view for explaining the flow of attachment of the magnetic reader 20.

First, as shown in FIGS. 7A and 8A, an operator who attaches the magnetic reading device 20 moves the magnetic reading device 20 to below the attachment position of the frame 10.
Then, as shown in FIGS. 7B, 7C, and 8B, the operator reads the magnetic reading so that the guide shafts 11 and 12 are inserted into the temporary fixing portions 21 and 23 and the shaft receiving portions 22 and 24 from above. Lift the device 20. And the guide shafts 11 and 12 are inserted so that the engagement pieces 21a and 23a of the temporary fix | stop parts 21 and 23 may be pushed from the front-end | tips 11c and 12c.

  As shown in FIGS. 7D and 8C, when the engagement pieces 21 a and 23 a of the temporary fixing portions 21 and 23 reach the recesses 11 a and 12 a of the guide shafts 11 and 12, the engagement pieces 21 a and 21 a pushed away from the guide shaft 11 23a is engaged by engaging with the recesses 11a and 12a.

  At this time, for example, the engaging pieces 21a and 23a are arranged so that the magnetic reading device 20 is guided in the guide holes 22a-1 of the shaft receiving portions 22 and 24 with respect to the diameter Φ8 of the guide shafts 11 and 12 in the horizontal direction with respect to the frame 10. By engaging the recesses 11a and 12a movably within the range of the difference Φ1 (1 mm) of the diameter Φ9 of 24a-1, in this engaged state (temporarily fixed state), two positioning abutments shown in FIG. 7D Precise positioning can be performed using the surfaces 10c and 10d and the butting pins 20a and 20b shown in FIG. 8E. In addition, as said difference, it is desirable that it is 2 mm or less.

  Further, the engagement pieces 21a and 23a are engaged with the recesses 11a and 12a so that the shaft receiving portions 22 and 24 have a clearance that can move about 1 to 2 mm in the vertical direction with respect to the guide shafts 11 and 12. In this engaged state (temporarily fixed state), as shown in FIG. 8D, the shaft receiving portions 22 and 24 and the guide shafts 11 and 12 can be temporarily fixed by the screw 15. In the temporarily fixed state, it is desirable to perform the above-described horizontal positioning.

  Next, as shown in FIG. 8E (and FIG. 7E), the operator secures the shaft receiving portions 22 and 24 and the guide shafts 11 and 12 by tightening with screws 15. Thereby, the magnetic reader 20 is fixed to the frame 10.

  When removing the magnetic reading device 20 from the frame, first, the screw 15 is removed to release the fixation. Also at this time, the engagement pieces 21a and 23a are engaged with the recesses 11a and 12a, and the temporarily fixed state is maintained.

  Therefore, the operator presses the temporary fixing portion 21 at the lower end 21c-2 of the right side surface portion 21c of the temporary fixing portion 21 shown in FIG. 4B, and as shown in FIGS. 8F and 8G, the engagement piece The state where 21a and 23a are engaged with the guide shafts 11 and 12 is released.

Next, the temporary fix | stop part 31 and the shaft receiving part 32 in a modification are demonstrated.
FIGS. 9A and 9B are orthographic views showing the temporarily fixed portion 31 and the shaft receiving portion 32 in a connected state in a modified example, (a) front view, (b) left side view, (c) right side view, (d). A rear view, (e) a plan view, and (f) a bottom view are included.

The temporary fixing part 31 shown in FIG. 9 may be a sheet metal that does not have elasticity instead of a leaf spring.
The temporary fixing portion 31 includes an engaging piece 31a extending in the front-rear direction, a movable portion 31b provided at the front end of the engaging piece 31a, supported by a pin 34 so as to be movable in the left-right direction, and a rear portion of the engaging piece 31a. It has a lever portion 31c provided at the end and extending downward, and an engagement guide portion 31d protruding upward from the engagement piece 31a.

  The engaging piece 31a is urged by the tension spring 33 to the right side (that is, the left side) in the rear view of FIG. 10A (b) and FIG. It can be engaged with the recess 11a.

The movable part 31b is movably supported by the pin 34 by a long hole provided in the left and right directions provided at the upper end 31b-1 and the lower end 31b-2.
At the lower end of the lever portion 31c, as shown in FIG. 10B (b), the temporary fixing portion 31 is movable in a direction to release the engaged state with the guide shaft 11 (a direction away from the guide shaft 11). A pressing portion 31c-1 pressed by a person is formed.

The engagement guide portion 31d protrudes obliquely upward to the right from the upper end of the engagement piece 31a, and guides the engagement piece 31a to be smoothly inserted into the recess 11a of the guide shaft 11.
The shaft receiving portion 32 has an upper surface portion 32a, a left side surface portion 32b bent downward at a right angle from the upper surface portion 32a, and a substantially right angle and substantially horizontal so as to face the upper surface portion 32a from the left side surface portion 32b. A pair of shaft inclination restriction portions 32d bent to the right side surface at substantially right angles from the front side end portion and the rear side end portion of the narrow width portion 32b-1 of the left side portion 32b; ,including.

  The shaft receiving portion 32 is substantially the same as the shaft receiving portions 22 and 24. However, in this modification, the above-described pin 34 is fixed to the upper surface portion 32a and the bottom surface portion 32c, and the left side surface portion 32b and the above-described pin portion. A tension spring 33 is disposed between the movable portion 31b.

FIG. 11A is a left side view and FIG. 11B is a front view showing a guide shaft 41 according to another modification.
A plurality of recesses 41 a-1 and 41 a-2 are formed on the outer peripheral surface of the guide shaft 41. For example, the engagement piece 21 a of the temporary fixing portion 21 shown in FIG. 3 is formed in the plurality of recesses 41 a-1 and 41 a-2. Engage in stages.

  Therefore, in the first-stage engagement (temporary fastening) in the first-stage recess 41a-1, work such as cable wiring is performed, and the second-stage engagement (temporary fastening) in the second-stage recess 41a-2. Then, operations such as fixing or temporary fixing can be performed.

  In the embodiment described above, the guide shafts 11 and 12 are provided on the frame 10 (first structure), extend downward, and have female screw portions 11b and 12b (fixed portions) formed at the ends. ing. The temporary fixing portions 21 and 23 are provided in the magnetic reading device 20 and engage with the guide shafts 11 and 12 to temporarily fix the magnetic reading device 20. The magnetic reading device 20 is also provided with a fixing portion (screw 15, bottom surface portion 22 c, etc.) for fixing the magnetic reading device 20 to the female screw portions 11 b and 12 b of the guide shafts 11 and 12.

  Therefore, it is not necessary to perform the fixing work while paying attention so that the magnetic reading device 20 does not fall or break, and the temporary fixing (engaging) / fixing work can be performed even in a narrow space.

Therefore, according to the present embodiment, the magnetic reading device 20 (second structure) can be fixed to the frame 10 (first structure) from below with a simple configuration and simple work. .
In the present embodiment, the number of guide shafts 11, 12, 41 has been described as two, but may be one or three or more.

The medium 100 is not limited to a passbook, and may be a form such as various slips, a booklet, or the like.
Although the magnetic reading device 20 has been described as an example of the second structure, the structure is preferably a precision instrument that is difficult for a person to hold with one hand, but may be other than that.

  The first structure and the second structure may be provided with another electronic device instead of the medium processing apparatus 1.

DESCRIPTION OF SYMBOLS 1 Medium processing apparatus 2 Conveyance path 2a, 2b Guide part 3 Roller 4 Roller drive motor 5 Medium insertion port 6 Print head 7 Platen 8 Medium position detection part 10 Frame 10c, 10d Positioning abutting surface 11, 12, 41 Guide shaft 11a , 12a Recess 11b, 12b, 13a Screw part 11c, 12c Tip 13, 14 Fixing shaft 15 Screw 20 Magnetic reader 20a, 20b Pin 21, 23 Temporary fixing part 21a, 23a Engagement piece 21b-1 Guide hole 21b-2 , 21b-3 Connecting hole 21c Right side surface portion 21c-1 Perimeter 21c-2 Lower end 22, 24 Shaft receiving portion 22a Top surface portion 22a-1 Guide hole 22b Left side surface portion 22b-1 Narrow portion 22c Bottom surface portion 22c-1 Guide Shaft fixing hole 22c-2 Opening 22d Shaft inclination restricting portion 25, 26 G Fixed plate 27 Horizontally moving magnetic head 28 Vertically moving magnetic head 29 Screw 31 Temporary fixing part 31a Engagement piece 31b Movable part 31c Lever part 31c-1 Pressing part 31d Engaging guide part 32 Shaft receiving part 32a Upper surface part 32b Left side surface part 32b-1 Narrow portion 32c Bottom portion 32d Shaft inclination regulating portion 33 Tension spring 34 Pin 41 Guide shafts 41a-1, 41a-2 Recess 100 Medium

Claims (12)

An attachment mechanism for temporarily fixing and fixing the second structure from below with respect to the first structure,
A guide shaft provided in the first structure and extending downward;
A fixed portion that is formed at a tip of the guide shaft and fixes the second structure to the guide shaft;
A temporary fixing portion that is provided in the second structure, engages with the guide shaft, and temporarily fixes the second structure;
A fixing portion provided in the second structure, and fixing the second structure to the fixed portion of the guide shaft;
An attachment mechanism comprising: A shaft receiving portion provided in the second structure, into which the guide shaft is inserted;
The temporary fixing portion engages with the guide shaft inserted into the shaft receiving portion,
The mounting mechanism according to claim 1, wherein: A concave portion is formed on the outer peripheral surface of the guide shaft,
The temporary fixing portion has an engagement piece that engages with the concave portion,
The attachment mechanism according to claim 1, wherein the attachment mechanism is provided.   The attachment mechanism according to claim 3, wherein the engagement piece is provided integrally with the urging member and protrudes from the urging member toward the guide shaft.   The said temporary fix | stop part has a press part pressed in the direction which cancels | releases the state engaged with the said guide shaft of this temporary fix | stop part, The Claim 1 characterized by the above-mentioned. Mounting mechanism. A plurality of the recesses are formed on the outer peripheral surface of the guide shaft,
The engagement piece of the temporary fixing portion engages with the plurality of recesses in stages.
The attachment mechanism according to claim 3 or 4, wherein the attachment mechanism is provided. A guide hole for guiding the guide shaft is formed in the shaft receiving portion,
The temporary fixing portion is configured so that the second structure can move within a range of difference between the guide shaft and the guide hole of the shaft receiving portion with respect to the first structure by 2 mm or less so as to be freely movable. The attachment mechanism according to claim 2, wherein the attachment mechanism is engaged.   The said temporary fix | stop part is engaged with the said guide shaft in the state which has a clearance which the said 2nd structure can move 1 to 2 mm to an up-down direction with respect to the said guide shaft. Item 8. The mounting mechanism according to any one of items 7 to 9.   The attachment mechanism according to claim 3, wherein the engagement piece is biased toward the guide shaft. A first structure;
A second structure fixed from below to the first structure;
An attachment mechanism for temporarily fixing and fixing the second structure from below to the first structure;
The attachment mechanism is
A guide shaft provided in the first structure and extending downward;
A fixed portion that is formed at a tip of the guide shaft and fixes the second structure to the guide shaft;
A temporary fixing portion that is provided in the second structure, engages with the guide shaft, and temporarily fixes the second structure;
A fixing portion provided in the second structure, and fixing the second structure to the fixed portion of the guide shaft;
An electronic device comprising: A first structure;
A second structure fixed from below to the first structure;
An attachment mechanism for temporarily fixing and fixing the second structure from below to the first structure;
The attachment mechanism is
A guide shaft provided in the first structure and extending downward;
A fixed portion that is formed at a tip of the guide shaft and fixes the second structure to the guide shaft;
A temporary fixing portion that is provided in the second structure, engages with the guide shaft, and temporarily fixes the second structure;
A fixing portion provided in the second structure, and fixing the second structure to the fixed portion of the guide shaft;
A medium processing apparatus comprising: The first structure is a frame of the medium processing apparatus;
The second structure is a magnetic reader of the medium processing device.
The medium processing apparatus according to claim 11.