JPH0442844Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to an improvement in a mechanism for locking the openable and closable cover of the film insertion section of an automatic film processing machine in a closed state.

(Prior art) Generally, in automatic film processing machines,
A leader with a plurality of film cartridges affixed to the rear end is inserted through the insertion section and fed into the developing section. When the reader is inserted into the insertion section and the cover is closed, the inside of the insertion section is shielded from light.The rear end of the film pulled out from the cartridge is then cut and the leader and film are fed into the developing section. There is.

Therefore, in order to avoid problems, it is strongly required in the developing process that the cover of the insertion section should not be opened until the film is completely fed into the developing section.

In the conventional insertion section cover closing lock mechanism, a locking device 19 consisting of a solenoid 20 is installed in the insertion section 17 as shown in Figs. 4 and 5, and the insertion section cover is opened and closed in opposition to the locking device 19. 18
A hook-shaped lock plate 25 is fixedly provided on the inside. When the insertion section cover 18 is closed, a proximity sensor 26 installed on the insertion section cover 18 detects the closing of the insertion section cover 18 and activates the solenoid 20. The lock slide plate 22, which supports the horizontally elongated guide holes 22a, 22a with the guide shafts 23, 23, slides in conjunction with the suction operation of the shaft 21 by energizing it. The insertion section cover 18 was locked in the closed state by engaging the coupling notch 24 with the locking plate 25 of the insertion section cover 18.

In this way, in the conventional mechanism, the locking device 19 is installed inside the film insertion section 17 and isolated from the outside, so when opening the insertion section cover 18 or when an electrical trouble occurs with the solenoid 20, etc.
It becomes necessary to manually release the locked state.
Therefore, it is necessary to provide a reset button 27 that is always pushed outward when the ammunition 27b is attached, and to add a lock release mechanism in which the inner end of the pin 27a is linked to the internal locking device 19. Therefore, it was actually established. Therefore, when a trouble occurs, when the reset button 27 is pressed to release the lock device 19 (power is cut off), the inner end of the pin 27a pushes the lock slide plate 22 of the lock device 19 and returns it to its original position before suction. , by retracting the notch 24 of the lock slide plate 22 and removing the insertion section cover 1.
By removing the notch 24 from the lock plate 25 of No. 8, the mutually engaged state is released, and the insertion section cover 18 can be opened freely.

(Problems to be solved by the invention) Since the manual lock release mechanism in the conventional mechanism is connected to the inside and outside of the film insertion section, this part requires a highly accurate light shielding function, making the configuration complex and expensive. Along with the drawbacks,
Because the locking mechanism was installed internally, not only was it impossible to visually confirm the locking status, but
There is an inconvenience in that it is not possible to directly retreat and release it by hand, and the purpose of this invention is to eliminate this problem.

(Means for Solving the Problems) In order to achieve the above object, this invention provides a mechanism for closing and locking the cover of the film insertion section of an automatic film processing machine using a locking device equipped with a solenoid mechanism. A device is installed on the outer surface of the film insertion part, and the engaging part advanced by the operation of an interlocking solenoid mechanism is used to lock the opening/closing latch that is engaged when the cover is closed to prevent it from being opened accidentally. This paper proposes a film insertion section locking mechanism for an automatic film processing machine.

(Function) When the cover is closed and the latch is engaged, a locking device using a solenoid mechanism installed on the outer surface of the film insertion section of the automatic film processing machine is energized and suctioned, and this suction movement advances in the direction of the latch. The latch is inserted into the engaged portion or locked in a restrained state so that the latch does not come undone.

In order to open the cover, the power to the locking device is cut off and the engaging portion is moved back directly by hand to release the latch, so that the latch can be freely disengaged and the cover can be opened.

(Example) Next, a specific example of the locking mechanism of this invention will be described with reference to the drawings.

Fig. 1 is a side view of an automatic film processing machine in which this invention can be implemented, Fig. 2 is a perspective view of the main parts of the same processing machine, with a part cut away showing the locking mechanism of the film insertion section, and Fig. 3 is the same as above. 1 is a front view of the main parts showing the locked state of the locking mechanism. In the figure, 1 is the film insertion part of the automatic film processing machine 16, a cover 2 is attached to the top surface so as to be openable and closable, and a cover 2 is provided on the outer surface of the cover 2. A latch 11 is formed by the latch 14 and a lever portion 12 having a barb 13 attached to the outer surface of the front cover 1a of the film insertion portion 1 facing the latch 14. By hooking and removing the latch 11, the cover 2 can be opened. Open it and keep it closed again. A locking device 3 is provided on the outer surface of the front cover 1a of the film insertion section 1 opposite to the latch 11, and the locking device 3 pivots the center of a vertically long crank plate 5 to the solenoid 4 with a support shaft 7, and locks the lower side of the locking device 3. 5a facing the solenoid 4 so that it can be freely separated from the solenoid 4, and the base 9b of the lock pin 9, which is supported by a bearing 10 so that the tip engaging part 9a moves forward and backward on the latch 11, is loosely supported in a vertically elongated receiving hole 6 bored on the upper side. They are fitted and connected, and the lower side 5a of the crank plate 5 is always urged away from the solenoid 4 by the bullet 8. The solenoid 4 of the locking device 3 and the latch 11 are electrically connected, the insertion section cover 2 is closed, and the latch 1 is closed.
1, the solenoid 4 is energized to attract the lower side 5a of the crank plate 5 against the elasticity of the bullet 8, and the crank plate 5 is rotated around the support shaft 7 as a fulcrum.
The upper side receiving hole 6 is swung in the direction of the latch 11 in the opposite direction, the lock pin 9 is slid, and the tip engaging portion 9a is advanced in an elbow shape onto the lever portion 12 of the latch 11 in the engaged state. Prevents dissolution and locks. Instead of electrically interlocking the energization of the solenoid 4 with the engagement of the latch 11 as described above, the suction action can also be intermittent by manually opening and closing the electricity via a switch (not shown). With this structure, when opening the insertion section cover 2, the suction action of the solenoid 4 is stopped by stopping the power supply to the solenoid 4, and the lock pin 9 is automatically retracted by the bullet 8 to be engaged. By removing the joint 9a from the latch 11, the latch 11 can be released and the cover 2 can be opened.
It is also possible to retreat the lock pin 9 directly by hand without providing the ammunition 8.

Reference numeral 15 denotes an interlock cover that is detachably attached to the front cover 1a of the insertion section 1 to protect the lock device 3. Although not shown, the latch 11 can also be used for various mechanisms such as an automatic latching mechanism. Of course, the lock pin 9 has also been used.
It is also conceivable to insert and lock the tip end 9a of the latch into a latch.

(Effects of the invention) As described above, this invention is a mechanism for closing and locking the insertion part cover of an automatic film processing machine, which is mainly based on a solenoid mechanism. It is installed on the outer surface of the processing machine, that is, the outer surface of the film insertion section, and engages the engaging portion advanced by a solenoid mechanism with the latch for opening and closing the cover, thereby visually locking (fixing) the engaged state of the latch. It is characterized by a mechanism.

Therefore, since the opening/closing lock state of the film insertion section cover can be visually confirmed, the state can be immediately recognized, and the opening/closing judgment can be made quickly and reliably, making it easy to operate and making it easier to operate the engaging section. The lock can be released by pushing it backwards directly with your hand and removing it from the latch, which is effective in manually opening the cover in the event of an electrical problem. The opening/closing mechanism with a removable latch is made more reliable to improve safety, and the opening/closing lock operation of the film insertion part cover can be easily, quickly and safely performed.

Moreover, because this device has a locking device installed on the outside and locks the device externally, it is possible to manually move the engaging part directly to release the lock, eliminating the need to force the engaging part as in the past. There is no need for a mechanism that connects the inside and outside to reset the device. Therefore, since the highly accurate and complicated light shielding mechanism required for this can be omitted, the structure of the film insertion section is simplified, and the cost is reduced accordingly, allowing the automatic film processing machine itself to be manufactured at low cost. In addition, even in existing processing machines equipped with a film insertion section without a locking device, a visual locking mechanism can be installed by simply replacing only the front cover of the film insertion section equipped with a locking device. It is a highly effective idea, with benefits that can be enjoyed.

[Brief explanation of the drawing]

Fig. 1 is a side view of an automatic film processing machine in which this invention can be implemented, Fig. 2 is a perspective view of the main part of the film insertion section of the same processing machine, with a portion cut away, and Fig. 3 is the same as above. A front view of the main parts showing the locking state of the locking mechanism, FIG. 4 is a perspective view of the main parts of the locking mechanism of a conventional film insertion section with a part cut away, and FIG. 5 is a perspective view of the main parts of the same locking mechanism. It is. In the figure, 1 is a film insertion portion, 2 is an insertion portion cover, 3 is a locking device, 4 is a solenoid, 8 is a bullet, 9a is an engaging portion, and 11 is a latch.

Claims (1)

[Claims for Utility Model Registration] (1) A mechanism for locking the openable/closable cover of a film insertion section in the closed state with a locking device using a solenoid mechanism, in which the locking device is provided on the outer surface of the insertion section and A film insertion section locking mechanism for an automatic film processing machine, in which an advanced engagement section locks an opening/closing latch in a closed state. (2) A film insertion portion locking mechanism in an automatic film processing machine according to claim 1, wherein a solenoid mechanism of the locking device is connected to be interlocked with engagement of a latch. (3) Utility model registration claim 1 or 2, in which the engaging portion is constantly urged in the backward direction by a bullet
A film insertion section locking mechanism in the automatic film processing machine described in 2.