JP2000305241A - Structure for connecting leader to film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and surely perform the connecting and the connecting release of a film and a leader without attaching another member to the leader. SOLUTION: A pair of first right and left engaging holes 11 and 11 is arranged on the leading end part of the film F1 and a second engaging hole 12 is arranged between the holes 11 and 11. A pair of right and left first engaging projecting pieces 3 and 3 engaged with the holes 11 and 11 and projecting toward the travelling direction of the leader L1, and a second engaging projecting piece 4 projecting in a direction opposite to those of the pieces 3 and 3 and engaged with the hole 12 are provided on the end part of the leader L1. The piece 4 is set so as to have a length by which its leading end part 4a can be positioned to the corresponding peripheral edge part of the hole 12 when the film is drawn by the leader L1, and the piece 4 is engaged with the hole l2, so that the connecting condition of the leader and the film can be held, and undesirable connection release in the middle of the leader travelling is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a reader and a film used in an automatic developing device of a reader transport type, that is, a photographed film connected to the reader is pulled by the reader to develop, fix, etc. The present invention relates to a connection structure between a photographed film pulling leader and a film used in an automatic developing device that automatically performs development by being transported to each processing zone.

[0002]

2. Description of the Related Art As such a connecting structure between a reader and a film, for example, as shown in FIG. 4, a reader main body having a first insertion hole (53) and a second insertion hole (54) at its ends. (51) Windows (57) corresponding to both insertion holes (53) and (54)
Window (57) having (58) and corresponding to first insertion hole (53)
A sheet piece (56) provided with protruding pieces (59) (59) projecting in the direction opposite to the running direction of the leader is adhered to the inner edge of the sheet, and the tip of the protruding pieces (59) (59) is the first insertion. A leader (L2) formed to be supported by a peripheral portion of the hole (53) is formed, and the protruding pieces (59) and (59) are formed at the tip of the film (F2).
Are provided with engaging holes (60) and (60) which can be engaged with the engaging holes (60) at the leading end of the film (F2) inserted from the second inserting hole (54) into the first inserting hole (53). ) (60) to the protruding piece (5
9) Engage (59) to make the leader (L2) and the film (F)
2) is known (see JP-A-9-73161 and JP-A-9-80731).

[0003] Such a connecting structure allows connection and disconnection to be performed easily and quickly compared to the connection between a film and a leader by a splice tape having a strong adhesive force. After inserting the film (F2) into the second insertion hole (54) from above the leader (L2), the film (F2) is inserted into the first from below the reader (L2).
When inserted into the insertion hole (53), the leading end of the film (F2) pushes the projecting pieces (59) and (59) upward to bend, and the engaging holes (60) and (60) at the leading end of the film (F2) project. Piece (59)
When it is pushed up to a position corresponding to the tip of (59), the protruding pieces (59) and (59) are automatically fitted into the engagement holes (60) and (60) to perform connection. Is a protruding piece (59)
By eliminating the force to bend (59), the projecting piece (5
9) (59) is returned to the original state in which it is horizontal with the reader body (51) due to the elastic restoring force, and the protrusions (59) (5)
Since the front end of 9) is supported by the peripheral portion of the first insertion hole (53), there is an advantage that the engagement state is reliably maintained. Therefore, it is a suitable connection structure for connecting a film and a reader in a lab where a large amount of photographed film is developed.

[0004]

However, although such a connecting structure certainly has various advantages as described above, it still has the following disadvantages.

First, a sheet piece (56) separate from the reader main body (51) must be manufactured in advance, and its manufacture and management are somewhat troublesome. Second, the sheet pieces (5
6) Connect the windows (57) and (57) to the first of the reader body (51).
The leader is made to correspond exactly to the insertion hole (53) and the second insertion hole (54), and the protruding pieces (59) and (59) are supported so that their tips are supported by the periphery of the first insertion hole (53). It has to be attached to the main body (51), and its positioning is somewhat troublesome. If this positioning is not performed accurately, there is a possibility that a problem may occur in connection with the film (F2).

Third, the sheet piece (56) having the protruding pieces (59) and (59) must be rich in elasticity as described above. The film (F2) which is pushed up to the lower side has a lower rigidity than the protruding pieces (59) and (59) and has a curl. Push it up,
The projections (59) and (59) cannot be engaged with the engagement holes (60) and (60), and the connection between the leader (L2) and the film (F2) may not be performed smoothly.

[0007] Fourth, the sheet piece (56) having the protruding pieces (59) (59) must be rich in elasticity as described above, and for that purpose, a certain thickness is required. Inevitably, the thickness of the reader (L2) is partially increased, and as a result, the length of the automatic developing device when returning from below to above a certain processing zone and when transitioning from one processing zone to the next processing zone. It may be difficult to bend in the vertical direction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can quickly and surely connect and disconnect a film and a reader without attaching a separate member to the reader. The present invention relates to a connection structure between a reader and a film.

[0009]

In order to achieve the above-mentioned object, a connecting structure between a leader and a film according to the present invention comprises:
Referring to the reference numerals in the drawings, the film (F1) has a pair of left and right first engagement holes (11) and (11), and a pair of left and right first engagement holes (11) and (11). And a second engaging hole (12) disposed between the first and second engaging holes (12).
A pair of left and right first engagement projections (3) (3) that engage with the engagement holes (11) and (11) and project in the same direction in either the traveling direction of the leader (L1) or the opposite direction; The second engagement hole (1) protrudes in a direction opposite to the first engagement protrusions (3) and (3).
2) and a second engaging protrusion (4) that engages with the leader (L1). The leading end (4a) of the engaging protrusion (4) protruding in the direction opposite to the running direction of the leader (L1) is a leader. When the film is pulled by (L1), the length is set to a length that can be located at the peripheral edge of the corresponding engaging hole (12), and the engaging protrusions (3) and (3) protrude in the leader running direction. But the protruding piece (3)
By engaging the engaging holes (11) and (11) corresponding to (3), the leader (L1) and the film (F1) are connected, and the direction opposite to the running direction of the leader (L1). The connection state is maintained by engaging the engaging projection (4) projecting into the engagement hole (12) corresponding to the projection (4). Things.

The leader (L1) is obtained by notching and piercing the end of a rectangular leader body (1) having a thickness of 0.25 mm made of a stretched polyester which has been generally used conventionally in a predetermined manner. Things. The pair of left and right first engagement projections (3) (3) pulls the film (F1) to be protruded in the traveling direction rather than in the direction opposite to the traveling direction of the leader. Although it is preferable because the load is dispersed, the second engaging projection (4) projects in the running direction of the leader (L1), so that the first engaging projection (3) is moved to the film (F1). ) And the second engaging projection (4) may be maintained.

The film (F1) may be a so-called Advanced Photo System (APS) dedicated film or a conventional 35 mm film. The APS-specific film has the above-mentioned engaging hole in the film itself. In contrast, for 35mm film,
Originally, there is no engagement hole at the leading end of the film, so the engagement hole must be formed before connecting to the leader. Also, since the 35 mm film has a lower tear strength than the APS exclusive film, it is desirable to provide a tear prevention reinforcing material on the periphery of the engagement hole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS.

FIG. 1 shows a reader (L1) and a film (F).
The left side shows a state before connecting the reader (L1) and the film (F1), and the right side shows a state after connecting the reader (L1) and the film (F1). Things.

The film (F1) in this embodiment
Is an APS exclusive film, and a pair of right and left perfect circular first engagement holes (11) (1
1) and a second grain-sized second engagement hole (12) is formed between the first engagement holes (11) and (11).

The leader (L1) protrudes along the running direction of the reader (L1) at the end of the leader body (1) and in each of the left and right regions of the feed holes (10). A pair of perforations (2) and (2) forming a pair of left and right first engagement protrusions (3) and (3) are formed, and the perforations (2) and (2) are formed.
The second engaging projection (4) is formed by cutting out the edge of the leader body (1) outwardly of the first engaging projection and projecting in the opposite direction from between the first engaging projections (3) and (3). Are formed. Further, the film (F1) is provided on the base end side of the first engaging projections (3) and (3) and on the left and right sides of the second engaging projections (4) when the film (F1) is connected to the leader (L1). Film supporting portions (7) and (7) for supporting from below are formed. Further, film swing restricting grooves (5) and (5) are formed so as to be continuous with the film supporting portions (7) and (7), and a pair of left and right film restrainers opposing each other are formed outside the grooves (5) and (5). Piece (6)
(6) is protruded.

Thus, a reader (L1) having the above configuration
When connecting the film and the film (F1), FIG.
As shown in (a), first, the first engagement protrusions (3) and (3) are fitted and engaged in the first engagement holes (11) and (11), respectively. In this state, the base end (4b) of the second engaging projection (4) faces the second engaging hole (12), but the distal end (4a) still faces the lower surface of the film (F1). Located on the side. Therefore,
As shown in FIG. 3B, when a thin rod-like material (B) that can penetrate through the second engagement hole (12) is strongly pushed up from below the second engagement protrusion (4) in the direction of the arrow, As the tip of the rod-shaped object (B) penetrates through the second engagement hole (4), the tip (4a) of the second engagement projection (4) becomes the second engagement hole (4) as shown by a chain line. And project to the upper surface. When the rod-shaped object (B) is pulled out from the second engagement hole (4), the second engagement protrusion (4) is returned downward by its elastic restoring force. The second engagement hole (12) comes into contact with or is located above the peripheral edge portion of the second engagement hole (12), thereby preventing the second engagement hole (12) from being pulled out from the engagement hole (12). Finally, the side portions of the film (F1) are aligned with the film swing regulating grooves (5) (5) of the leader (L1).
When it is fitted inside, the film (F1) is supported by the film supporting portions (7) and (7) from below, and both sides are pressed down by the film pressing pieces (6) and (6) of the leader (L1). become. Therefore, the film (F1) includes the film supporting portions (7) and (7) and the film holding piece (6).
Thus, the film (F1) is stably connected to the leader (L1) by being lightly sandwiched between (6) and (6).

After the development process is completed, the film (F
When disconnecting the connection between 1) and the reader (L1),
Contrary to the connecting operation, first, both sides of the film (F1) are withdrawn from the film swing regulating grooves (5) and (5), and the end of the film (F1) is erected in an obliquely upright shape. When the film (F1) is quickly pulled up in the running direction of the leader (L1), the second engaging projection (4) comes out of the second engaging hole (12) first, and then the first engaging hole (11). )
The first engagement projections (3) and (3) withdraw from (11), and the connection between the leader (L1) and the film (F1) is released at once.

[0018]

According to the present invention, the film F
A pair of left and right first engagement holes (11) (11)
And a second engagement hole (12) disposed between the left and right first engagement holes (11) and (11), while the reader (L1)
A pair of left and right first engagement projections (3) (3) that engage with the first engagement holes (11) and (11) and protrude in the same direction in either the traveling direction of the leader (L1) or the opposite direction. ) And a second engaging projection (4) projecting in a direction opposite to the first engaging projections (3) and (3) and engaging with the second engagement hole (12). The leading end (4a) of the engaging projection (4) projecting in the direction opposite to the running direction of L1) is positioned at the peripheral edge of the corresponding engaging hole (12) when the film is pulled by the leader (L1). Engagement protrusion (3) projecting in the running direction of the leader (L1) since the length is set to a length that can be adjusted.
(3) is an engaging hole (11) corresponding to the protruding pieces (3) and (3).
By engaging (11), the leader (L1) and the film (F1) are connected, and the leader (L1) is connected.
The engaging projection (4) projecting in the direction opposite to the traveling direction of
By engaging the engagement hole (12) corresponding to the protruding piece (4), the connection is maintained, and a connection structure between the leader and the film that can reliably prevent unintentional disconnection can be provided. . In addition, the connection operation can be performed only by fitting each engagement protrusion into the corresponding engagement hole, and the connection release operation can be performed only by slightly raising the film (F1) and then strongly pulling in the running direction of the reader. It is possible to provide a connecting structure between the film and the reader which is extremely easy to perform the connecting operation and the releasing operation. When the pair of left and right first engagement projections (3) and (3) are provided to project in the running direction of the leader (L1), the tensile load is dispersed, and the film (F1) is unwilling to be displaced. It can also prevent serious damage.

When the leader (L1) is provided with a pair of left and right film swing regulating grooves (5) and (5), the swing in the width direction of the film (F1) is regulated, so that automatic development is performed. Unwanted troubles caused by meandering of the film (F1) during transport of the film (F1) in the apparatus can be avoided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a connection state of a leader and a film in an embodiment of a connection structure between a leader and a film according to the present invention.

2A is a cross-sectional view taken along the line II-II in FIG. 1, and FIG.
FIG. 3 is a sectional view taken along line III-III in FIG. 1.

FIG. 3A is a plan view showing a state in which the reader and the film according to the embodiment of the present invention are being connected.

FIG. 4 is a perspective view of a conventional connection structure between a reader and a film.

FIG. 5 is a sectional view in the middle of the connection.

[Explanation of symbols]

 F1 Film L1 Leader 3 First engagement projection 4 Second engagement projection 4 End of second engagement projection 5 Film swing regulating groove 11 First engagement hole 12 Second engagement hole

Claims (3)

[Claims] An engaging projection provided at a rear end of a leader engages with an engaging hole provided at a leading end of a film, so that the leader and the film are connected to each other. In the connection structure of (1), a film (F1) is disposed between a pair of left and right first engagement holes (11) and (11) at a front end thereof. A second engaging hole (12), and the leader (L1) engages with the first engaging hole (11) (11), and either the running direction of the leader (L1) or the opposite direction. A pair of left and right first engaging projections (3) (3) protruding in the same direction.
And a second engagement projection (4) projecting in a direction opposite to the first engagement projections (3) and (3) and engaging with the second engagement hole (12). ) Protrudes in the opposite direction to the running direction, the leading end (4a) of the engaging protrusion (4) is located at the peripheral edge of the corresponding engaging hole (12) when the leader (L1) pulls the film. Engaging projection (3), which is set to a length that is protruding toward the running direction of the reader.
(3) is an engaging hole (11) corresponding to the protruding pieces (3) and (3).
By engaging (11), the leader (L1) and the film (F1) are connected, and the leader (L1) is connected.
The engaging projection (4) projecting in the direction opposite to the traveling direction of
A connecting structure between a leader and a film, wherein the connecting state is maintained by engaging with an engaging hole (12) corresponding to the protruding piece (4). 2. The connecting structure between a leader and a film according to claim 1, wherein a pair of left and right first engaging projections (3) (3) is provided to project in a running direction of the leader (L1). 3. The connecting structure between a leader and a film according to claim 1, wherein the leader (L1) includes a pair of left and right film swing regulating grooves (5) (5).