JPH0712992Y2 - Paper mask with printer paper guide member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a paper mask portion in a photographic printer in which an automatic loading mechanism for long photographic printing paper, that is, also called roll paper, is incorporated. .

One of the biggest bottle necks in this type of photographic printer, which is equipped with an auto-loading mechanism, and is commonly referred to as a printer in this type of industry, is the reliable and smooth feeding of the paper when it is loaded. In particular, it was difficult to smoothly introduce the leading edge of the paper, but this difficulty is due to the fact that a flap that can be swung with respect to the opening for printing exposure with a paper mask is provided, Although it was supposed to be possible to eliminate the paper mask part by a technical means such as turning the flap to guide the paper, or a technical means such as that described in Japanese Utility Model Laid-Open No. 57-153340. , Has an opening for printing and exposure, and is fixed to the upper end of the easel body and is a movable pen. Paper mask base for sliding one part of the per mask, and a paper mask base on the base that is opposed to each other so that the paper can be moved in the longitudinal direction and the width direction, and along both side edges in the longitudinal direction of the paper. Is formed with a separate movable paper mask piece whose upper surface, which is also the feeding surface of the paper, is slightly higher than that arranged at intervals in the longitudinal direction of the paper, and the movable paper mask piece is formed. By sliding it, a so-called with-border (bordered, hereinafter referred to as WB if necessary) and borderless (borderless, hereinafter referred to as BL if necessary), etc. For printers equipped with it, when switching from BL to WB,
Not only does the front edge of each of the other paper mask pieces facing each other in the width direction, which is the direction orthogonal to the longitudinal direction of the paper, strike each other edge of the paper and damage the paper, Since the regular feeding of paper is often impossible, this is accompanied by improvements and improvements, and the advent of a paper guide device that can also guide the leading edge of the paper at the beginning of the introduction of paper is due to the consumption of photographic film. As the automation of printers has increased with the rapid increase in the number of printers, it has become indispensable.

In view of the above-mentioned current situation, the present invention provides a long photographic printing paper,
That is, in a paper mask in a printer in which a paper auto-loading mechanism is incorporated, each of the movable paper mask pieces arranged at intervals in the longitudinal direction of the paper and the different paper mask pieces. The paper feeding surface side, which also serves as the paper feeding surface, is composed of separate movable paper mask pieces arranged on both side edges in the longitudinal direction of the paper, and it is possible to switch between with border and borderless. At the same time, when the paper mask is slightly projected through the opening for printing exposure of the paper mask, the front end edge portion which is the introduction side of the paper has a paper mask piece provided on the introduction side of the paper. Paper guide part including a paper guide plate part that is tapered so as to be substantially the same height as the edge on the side where the opening is formed By allowed to mounting also, BL
To WB and WB to BL, the paper guide plate of the paper guide member is placed on the paper mask through the opening for printing exposure with the paper mask whose top surface is not arranged in one plane. Protruding and lifting the paper onto the paper mask, it makes it easy to guide and introduce the leading edge of the paper onto the paper mask by the operation of the auto loading mechanism, and the paper is fed normally without damaging it. Ensures smoothness, and also when switching from BL to WB
The front edge of each movable paper mask piece facing each other in the width direction, which is the direction perpendicular to the longitudinal direction of the paper, abuts on each side edge of the paper, and the side edge of the paper is abutted. We would like to provide a paper mask that can eliminate the concerns such as damage and the inability to smoothly and properly feed the paper.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. First, referring to FIGS. 1 and 2, the mounting and fixing of the easel body X to the upper end of a conventional printer of this kind will be described. The paper mask substrate A according to the present invention to be provided, and WB to BL on this substrate A, and BL
Paper mask Y consisting of a movable paper mask piece B, which is slidably mounted so that it can be switched from WB to WB.
Each component for construction will be described, and subsequently, the construction of each component will be described with reference to the drawings from FIG. 5 onward, together with the operation, and finally, the points of the present invention will be described with reference to FIGS. 1 to 4. The paper guide member Z will be described.

First, in FIG. 1 and FIG. 2, X is an easel body equivalent to an easel body in a printer of this type up to now, and Y is a paper mask according to the present invention attached to the upper end of the easel body X. , This paper mask Y
Is a paper mask board A that is used for mounting and fixing it on the upper end of the easel body X, and a movable piece that is slidably mounted on the board A so that it can be switched from WB to BL and from BL to WB. And a paper mask piece B of the above.

By the way, the paper mask base A, which serves as a base for placing and sliding the paper mask piece B, has a longitudinal direction of the paper to be transferred and run as shown in FIG. 5 in addition to FIGS. 1 and 2. Base pieces 1, which are arranged along both edges of
It is formed by connecting and fixing 1'and base pieces 10 and 10 '(see FIGS. 1 and 2) arranged at intervals in the longitudinal direction of the paper with several screws 15.

In addition, the movable paper mask piece B is arranged in the longitudinal direction of the paper as shown in FIGS. 1 and 2 as well as FIGS. 5 and 6 and FIGS. 8 and 9. Movable paper mask pieces 20, 20 ', which are slidably mounted in the direction orthogonal to the longitudinal direction of the paper, on the base pieces 1, 1'arranged along both side edges of the base piece. The sliding grooves 2,2 'formed on the facing surfaces of 1,1' are movably supported by ridges 31,31,31 ', 31' (see FIGS. 8 and 9) and slidable. Movable paper mask strips 3 longitudinally spaced
The main components are 0,30 '(see FIGS. 8 and 9).

Then, each separate paper mask piece 20, 20 'having front edges 21, 21' that determine the width of the printing screen in the width direction on the paper.
Is formed on one end of each paper mask piece 20 in the longitudinal direction and on the other end of the other paper mask piece 20 'in the longitudinal direction. The long grooves 22 ', 22' (see Fig. 5, one of which is not shown) formed between the links 23, 23 '(see Figs. 1, 2, 5) and the base piece 1'rotate. Links 24, 24 '(first, second, fifth
(See the figure) and the paper mask pieces 20,2
0'is simultaneously moved to the inside and the outside orthogonal to the longitudinal direction of the paper by the eccentric cam 100 which is rotated once by a pulse motor (not shown) which is brought into contact with the cam contact plate 25 of the paper mask piece 20. It is designed to be punished.

However, at the time of WB, a coil spring provided between both sides of the base piece 1 and the paper mask piece 20 and between both sides of the base piece 1'and the paper mask piece 20 '(both of which are not shown in FIG. 5). Paper mask one-sided feeding member with 26, 26,
The paper mask pieces 20, 20 'biased inward by 26', 26 '(one 26, 26' is not shown) are
Protrusions for printing screen size regulation provided on the base pieces 1, 1 '
It is made to stand still by 3, 3 ', and at the time of BL, it operates as shown in FIG. Direction and the tip of the lock can be moved up and down [see (d) in Fig. 7]
And the lock pins 4 that are set up on both sides of the base piece 1 (the other one is not shown in FIG. 5) are provided to determine the printing screen size in the width direction of the paper. 29, 29 'are coil springs of the paper mask piece pushing member 26, 26' with a coil spring.

Then, the lock claw 27 and the lock pin 4 which are biased by the spring 28, and the paper mask piece pushing member 26, 26 'with the coil spring are protected by the protective covers 5, 5, 5 provided on the paper mask piece 20, 20'. It is covered with ‘5’.

The links 23, 23 'are notched portions 11, 11' of the base pieces 10, 10 '.
On the upper side, the base pieces 1, 1'and the links 24, 24 'are provided with long holes for moving the connecting shafts (one of which is not shown).

In addition, sliding grooves 2, formed on the opposing surfaces of the base pieces 1, 1 ',
The paper mask piece 30, 30 'slidably supported by the ridges 31, 31, 31', 31 'on the 2'is (see FIG. 6 shown on the other hand),
As shown in FIGS. 8 and 9, a turnbuckle 32 rotatably supported by the easel body X so that the rotation of the pulse motor M ₁ attached to the easel body X is transmitted through a speed reducer or the like. The movers 33 and 33 'screwed to the turnbuckle 32, and the support shafts 34 and 34 fixed to the easel body X
So that the sliders 33, 33 'slide along the pins 36, 36'
The sliders 35, 35, 35 ', 35' connected with the fixed plates 37, 37 'fixed on the fixed plates 37, 37' are connected by the pins 38, 38, 38 ', 38', each of which is the specified amount. It is moved so that the printing screen size in the longitudinal direction of the paper can be determined.

Finally, the paper guide member Z will be described with reference to the drawings from FIG. 1 to FIG.

The paper guide member Z is a paper guide plate portion 40.
And a reversible speed reducer motor M ₂ fixed to the machine frame
, One end is attached to the drive shaft 41 from the decelerator, the other end is fixed to the paper guide plate portion 40, the channel-like material connecting rod 42 bent into a substantially U-shape, and the paper. A stopper 43 that abuts the connecting rod 42 when the guide plate portion 40 moves out of the optical path for printing exposure on paper,
When the connecting rod 42 hits the stopper 43, the motor M ₂
The limit switch 44 for stopping the rotation of the paper and the paper guide plate 40 are movable paper mask pieces 20, 20 ', 30, 3
Even if the paper is slightly raised from the upper surface of 0 ', the paper is slightly lifted from above the paper mask pieces 20, 20', 30, 30 'and the paper mask pieces 20, 20' are moved, their front edges 21, 21 ' Stopper 45 that hits the connecting rod 42 when it reaches a position where it does not hit the side edge of the paper, and a limit switch that stops the rotation of the motor M ₂ when the connecting rod 42 hits the stopper 45. 46 and a pin planted in the machine frame
It is composed of a spring 49 etc. stretched between 47 and a pin 48 which is planted on the connecting rod 42. The stopper 43 and the stopper 45 are virtual straight lines connecting the pin 47 and the axis of the drive shaft 41. A spring 49 is provided on the opposite side of the connection bar 42 and is used to hold the connecting rod 42, and by extension, the paper guide plate portion 40 at the stop position.

Further, especially on the introduction side indicated by an arrow P, the introduction direction of the paper in the paper guide plate portion 40 slightly projected from the upper surface of the paper mask pieces 20, 20 ', 30, 30' as described above, As shown in the figure, the taper is tapered downward toward the paper introduction side, and its tip is the same as or slightly lower than the printing screen defining edge of the paper mask piece 30. The surface portion t is formed.

As a result, particularly when the paper is introduced onto the paper mask Y during automatic loading, the leading end of the paper hits against the edge of the paper guide plate portion 40 of the paper guide member Z, so that the paper can be reliably and smoothly introduced and conveyed. There was no concern that it would hinder or make the introduction transport impossible.

Also, when switching the printing screen size to paper, especially when moving each paper mask piece 20, 20 ′, 30, 30 ′ to WB having a smaller printing screen size than BL having a large printing screen size, in the paper guide member Z The paper guide plate portion 40 lifts the paper, and particularly the front edges 21, 21 ′ of the paper mask pieces 20, 20 ′ collide with the side edges of the paper to damage the side edges of the paper or to secure the paper securely. There was no concern about smooth transportation, that is, hindering the transportation.

As is clear from the above description, according to the present invention, a paper auto-loading mechanism is incorporated, and BL to WB
, The printer can switch from WB to BL and guides and introduces the paper onto a paper mask whose top surface is not arranged in one plane, but no damage to the tip of the paper. Not only can it provide smooth and smooth guidance and introduction without giving it, and can ensure the regular feeding of the paper, it not only has a very excellent effect, but also when switching from BL to WB. An excellent effect that the front edge of the mask piece collides with the side edge of the paper, damages the side edge of the paper, and makes it impossible to smoothly and properly feed the paper. It has become possible to provide a printer that can also produce the effects.

[Brief description of drawings]

The drawings show only the essential parts of the embodiment of the paper guide device in the printer according to the present invention. FIG. 1 is a schematic plan view when the paper guide is not used, and FIG. 2 is a schematic when the paper guide is used. A plan view, FIG. 3 is a schematic side view of a paper guide in a use state, which is vertically sectioned along the line III-III in FIG. 2 and viewed in the direction of the arrow, and FIG.
FIG. 5 is a schematic rear view of the state of use of the paper guide cut along the line IV-IV and seen in the direction of the arrow, and FIG. FIG. 6 is an exploded perspective view of the paper, excluding and partially cut away, FIG. 6 is a perspective view of the assembling thereof, and (a), (b), (c), and (d) of FIG. BL the movable paper mask pieces placed on both edges of the
Explanatory drawing of locking order and unlocked state when using
The figure is omitted in FIG. 5, and in FIG. 6, a front view for explaining a moving mechanism portion of a movable paper mask piece arranged in the longitudinal direction of the paper, one side of which is indicated by an imaginary line, and FIG. 9 is a part thereof. FIG. X: Easel body 100; Eccentric cam, 101; Paper retainer Y: Paper mask A; Paper mask base 1,1 ', 10,10'; Base piece 2,2 '; Sliding groove 3,3; Printing screen Size-regulating ridges 4; Lock pins, 5, 5 '; Protective covers 11, 11'; Cutouts, 15; Screw B; Movable paper mask pieces 20, 20 ', 30, 30'; Paper mask pieces 21 , 21 '; Front edge, 22; Projection piece 22'; Long groove 23, 23 ', 24, 24'; Link 25; Cam contact plate 26 ';26'; Push member with coil spring 27; Lock claw, 28; Spring 31 , 31 '; ridge, 32; turnbuckle 33, 33'; mover, 34; spindle 35, 35 '; slider 36, 36', 38, 38 '; pin 37, 37'; fixed plate, M ₁ ; Motor Z; Paper guide member 40; Paper guide plate 41; Drive shaft 42; Channel-like material connecting rods 43, 45; Stoppers 44, 46; Limit switches 47, 48; Pins, 49; Spring M ₂ ; Motor, t; tapered surface

Claims (1)

[Scope of utility model registration request] 1. A long photographic printing paper, that is, a paper mask in a printer in which a paper auto-loading mechanism is incorporated, wherein the paper mask is movable and arranged at intervals in the longitudinal direction of the paper. A paper mask piece, and another movable paper mask piece arranged along both side edges in the longitudinal direction of the paper on the side of the paper feeding surface that also serves as the paper feeding surface of the paper mask piece. And is capable of switching between with-border and borderless, and when it is slightly projected on the paper mask through the opening for printing exposure of the paper mask, the front edge part on the paper introduction side is formed. Is a paper taper so that the height of the paper mask piece arranged on the paper introduction side is substantially equal to or lower than the edge on the side where the opening is formed. Paper guide member with paper mask of the printer the paper guide member having a guide plate characterized in that it also was allowed attached.