JPH02148060A - Charge wire cassette - Google Patents

Abstract

PURPOSE:To simply execute the replacement of a charge wire and to contrive the convenience in respect of a distribution, carrying and handling by winding the charge wire to a wire connecting member detained and held by a detaining member of a charge case side and containing it in a cassette case. CONSTITUTION:In a cassette case 22 of a charge wire cassette A, wire connecting members 23, 24 being freely detainable and detachable against detaining members 4, 5 of a charge device B are held so as to be freely rotatable, and a charge wire 10 of a length portion being sufficient for the wire replacement of plural times is connected and wound to the connecting members 23, 24 in a state that two pieces among four pieces of wire guides (e) are allowed to make a detour. By drawing out the charge wire 10 from an opening part (d) of the cassette case 22 and winding and hooking it to a pulley 11 of a base 7 of the charge device B, and also, detaining and holding the wire connecting members 23, 24 in the cassette case 22 by the detaining members 4, 5, the charge wire 10 is extended and provided in a state that tension by a coil spring 9 is given.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a charge Y/cassette 1 used for a charger device of an image forming apparatus such as an electrostatic photocopier or a facsimile machine.

[Conventional technology]

When the charge wire of the charger device is broken or becomes unsuitable for use and its life has expired, it is naturally necessary to replace the charge wire with a new one.

[Problem to be solved by the invention]

However, the above-mentioned charge wire is not generally distributed and difficult to obtain, and the work of fixing the wire is troublesome.
Replacing the charge wire is not something that anyone can do easily, and moreover, it requires preliminary inspection for replacement, so the replacement of the charge wire is left in the hands of No.-Bisman. With the charge wire wound around H being unwound, the wire connecting member connecting the charge wire is retained in a locking member on the charge case side, thereby achieving replacement of the charge wire.

Also, wrap the charge wire around at least one side? = Since the single-digit locking member is housed in the cassette case, breakage of the charge wire can be avoided in terms of distribution and portability, and it is also easy to remove.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

2 and 3 show a charger device 13 equipped with a charge wire cassette A according to the invention.

In the figure, 1 is a metal charge case, and on both sides in the longitudinal direction are box-shaped insulating members 2 and 3 made of synthetic resin, etc.
is removed, and the insulating part + on one longitudinal end of it is removed.
On the bottom plate 2a of 42, there are two locking members 4 and 5 having ridges d that can be rotated forward and backward. Care was required in carrying the device and handling it when exchanging it, and there was room for improvement in terms of the exchange process as well.

The present invention was devised in view of the above-mentioned circumstances, and allows anyone to easily replace the charge wire, and also provides a charge wire cassette that is suitable not only for distribution but also for carrying and handling. The purpose is to provide

[Means to solve the problem]

A charge wire cassette according to the present invention, which has been achieved in order to achieve the above object, connects a charge wire to a wire connecting member that is locked and held by two locking members on the charge case side, and A charging wire is wound around one of the wires, and the two wire connecting members are housed in a cassette case.

[Function] According to the above characteristic configuration, at least one wrench is provided.

A terminal 6 for voltage application is provided at the end of the other insulating member 3, and a conductive base 7 is provided inside so as to be freely slidable in the longitudinal direction. A conductive coil spring 9 is provided across the conductive member 8 and the terminal 6 to bias the base 7 toward the terminal 6. Furthermore, two conductive pulleys 11 for winding the charge wire 10 of the charge wire connector hA, the details of which will be described later, are rotatably mounted on a conductive spindle 12 erected on the base 7. It is provided.

Reference numeral 13 is used to adjust the height of the charge wire 10, and a screw b penetrating through the bottom plate 2a of the insulating member 2 is screwed into a height adjustment plate 15 rotatably equipped with a pulley 14 for supporting the charge wire. At the same time, a spring 16 is provided between the height adjusting plate 15 and the bottom plate 2a to bias the height adjusting plate 15 in the opposite direction.

Reference numeral 17 denotes a drive means for rotating the locking member 34.5 in the forward and reverse directions. A motor M capable of forward and reverse rotation is attached to the motor 18, and a worm gear G is provided to the output shaft 19 of the forward and reverse rotation motor M.
- Lie L meshing with Mugya G3, wheel gear G4 and A
A gear G meshing with the gear G of the locking member 4 described in iJ is rotatably provided on the bracket 20 connected to the insulating member 2, and is connected to both of the locking member 4.5. gear G
,, G, and the intermediate gear G6 that meshes with the bracket 2
0.

Reference numeral 21 denotes a cleaning tool for cleaning the charge wire 10 as the charge wire 10 moves, and is made of, for example, a felt member with a slit for inserting the wire.

Next, a specific example of the charge wire cassette will be explained based on FIG. 1 and FIG. 4.5. The locking members 4 and 5
The wire connection part flat 1'23.24 which can be freely engaged and detached from the cassette case 22
a first control means 25 for rotating the first control means 25 in the vicinity of the opening d;
- A second control means 26 is electrically connected to the second control means 26 which receives an exchange signal and rotates the motor M by a predetermined number of rotations in the wire winding direction.

That is, when the accumulated number of images formed reaches a predetermined number and a cleaning signal is sent, the motor M reciprocates a predetermined number of times, and the charge wire 10 reciprocates accordingly. The charging wire 10 in the position is relatively cleaned by the cleaning tool 21.

Then, taking into account the lifespan of the charge wire 10, the number of cleanings of the charge wire 10 that can withstand use is calculated based on the lifespan, and when the accumulated number of cleanings reaches a predetermined number based on this, the wire is replaced. A signal is transmitted, and the motor M is rotated a predetermined number of times in the wire winding direction, and as the one wire connecting member 23 rotates, the charge wire 10 that is wound around the wire connecting member 23 is used. At the same time, a four-wire wire guide 'e is provided to connect the other wire, and the charge wire 1o, which has a length sufficient for five wire replacements, is routed around the two wire guides e. In this state, both ends of the charge wire 1o are connected to each of the wire connection members 23 and 24, and the charge wire 1o is connected to one of the lie A/connection members 2.
It is made by wrapping around 3.

As shown in FIGS. 3 and 5, the charge wire 10 is pulled out from the opening d of the cassette case 22, wound around the pulley 11 of the base 7, and the charge wire 1o is inserted into the slit of the cleaning tool 21, and the wire connecting member 23 held in the cassette case 22 is held in a state where the base 7 is slightly slid against the biasing force of the coil spring 9.
．． By locking and holding the charge wire 24 to the IL members 4 and 5, the charge wire 10 is tensioned with the tension applied by the coil spring 9.

Here, a cleaning signal is input to the motor M, for example, with the accumulated predetermined number of image formation sheets as a control base [V], and the motor M is rotated by a predetermined number of rotations in accordance with the rotation of the forward/reverse portion 4A24. , the charging wire 10 that has been in the use position until now is configured to be wound around the wire connecting member 24.

In addition, a third control means 27 is provided for transmitting a charge wire replacement signal based on a wire replacement signal transmitted when all of the charge wires 10 have reached the end of their service life, and an indication is provided based on the input from the third control means 27. The lamp 28 is turned on and the charge wire 10 is attached based on the lighting of the lamp 280 to encourage replacement.

Next, a first alternative embodiment of the charge wire connector I-A is shown in FIGS. 6 to 8.

This charge wire cassette A consists of a cassette case 22 that can be divided into two parts 22a and 22b connected by a small connecting part f, and the case part 22a
The wire connecting members 23.24 are rotatably held across the -L lower plates of the wire connecting members 23. 24 and winding the charge wire 10 around one wire connecting member 23, the charger device B is equipped with the charge wire 1-A.
It is shown in FIG.

This charger device B is rotatably provided with a locking member 5 that removably locks an empty wire connecting member 24 on an insulating member 2 provided on the negative end side of a metal charge case 1. At the same time, a locking member 4 is rotatably provided on the insulating member 3 at the other end of the charge case 1 to detachably lock and hold the twist connecting member 23 around which the charge wire 10 is wound. A terminal 6 is provided at the end of the insulating member 3 on the other end side, and a conductive wire winding that is electrically connected to the terminal 6 via a coil spring 9 connects the member 8 to the oblique elongated hole g. The insulating member 3 is erected so as to be slidable along the insulating member 2.3, and a cleaning tool 21 is provided on each of the insulating members 2.3, and a driving means 17 is provided for driving and rotating the locking member 4.5. It consists of

The first drive stage 17 described above is configured as follows.

As a result, the charge wire 10 is tensioned with the tension (=1) applied by the coil spring 9.

(7) When the accumulated number of images formed reaches a predetermined number and a cleaning signal is sent, the motor M reciprocates a predetermined number of times, and the charge wire 10 reciprocates accordingly. Charge wire 1 that was in the used position until now
0 is relatively cleaned by the cleaning tool 21.

Further, when cleaning is repeated and the cumulative number of cleanings reaches a predetermined number and a wire exchange signal is transmitted, the charge wire IO wound around the twister connecting member 23 is fed out to the use position, and the charge wire IO is fed out to the use position. When the charge wire 10 that has been in the use position is wound around the wire connecting member 24 and all of the charge wires 10 have reached the end of their service life, an indication for wire replacement is made.

In each of the above embodiments, the number of times the charge wire 10 can be cleaned to withstand use is calculated based on the lifespan of the charge wire 10, and based on this, when the accumulated number of times of cleaning reaches a predetermined number, the wire is replaced. In other words, the locking member 4.
A gear G, , G, is connected to each of the gears G7. Gear G9 meshing with G11. A GIO is rotatably installed on an intermediate shaft 29.30 connected to each of the insulating parts 112.3, and a pulley 31 is integrally installed on each of the gears Gl and G. At the same time, an endless transmission gear 32 is wound around the pulley 31, and the gear G is connected to the output shaft 19 of the forward/reverse rotation motor M. The motor M is provided with a war J and a gear Gz that mesh with each other, and is electrically connected to the first and second control means 25 and 26 to the motor M, and is provided with a fifth control means 27 and an indicator lamp 28. It is.

As shown in FIGS. 8 and 10, the case 22 is divided into two parts, and the empty wire connecting member 24 is held in place by the locking members 5L and 5. At the same time, while the conductive member 8 is slid slightly against the biasing force of the coil spring 9 and the charge wire IO is unwound from the wire connecting member 23, the charge wire 10 is connected to the conductive member 8. Wrap it around the sexual member 8,
In this state, the wire connection member 23 is locked and held by the locking member 4. The motor M is wound with a wire each time the cleaning signal is sent. While sweeping the charge wire 10 for 7N by rotating it a predetermined number of times in the removal direction, the one wire connecting member 23 is
At the same time, the charge wire 10 that has been wound up on the wire connecting member 24 is repeatedly fed out to the use position, and the charge wire 10 that has been at the use position is repeatedly wound on the wire connecting member 24.
It is also possible to detect the wire exchange signal (that is, the cleaning signal) that is sent after the final winding of the charging wire 10 and control the cleaning and winding of the charge wire 10 in the reverse order.

Alternatively, the charge wire 10 is once unwound based on the wire exchange signal after the final winding of the charge wire 10, and then the charge wire 1
It may also be possible to perform control to restart the repetition of cleaning and winding.

Further, the number of times of cleaning determined based on the lifespan of the charge wire 10 is divided into a plurality of times, and the cleaning signal transmitted after reaching the divided number of times of cleaning is used as a wire replacement signal, and based on this, the above two aspects are performed. It is also a good idea to take control of the In other words, if the number of cleanings determined based on the lifespan of the charge wire 10 is, for example, six times, then the number of cleanings is divided into, for example, three times, and the charge wire IO is wound up and set as described above. - It is also good to have it repeated by controlling the aspect.

Another embodiment of the charger device B equipped with the charge wire cassette A of the first embodiment is shown in FIG. 11G.

This charger device I3 includes a metal charge case 1.
A locking member 5 for releasably locking and holding the empty wire connecting member 24 is rotatably provided on the insulating member 2 provided at one end, and an insulating member at the other end of the charge case 1. 3, a locking member 4 that removably locks and holds the wire connecting member 23 around which the charge wire 10 is wound is rotatably provided, and a friction member 33 is connected to the locking member 4. At the same time, the friction member 33 is connected to the insulating member 3.
Since the charging wire 10 is tensioned by the spring 34 which is pressed against the bottom surface of the spring 34 and the locking member 4, and the frictional resistance is attached to the locking member 4, By driving and rotating the motor M in the wire winding direction, tension is applied to the charge wire lOt.

Then, when a wire exchange signal is transmitted, the charge wire 10 wound around the wire connecting member 23 is fed out to the use position, and the charge wire 10 that has been in the use position is moved to the wire connection member 24. When the charge wire 10 is wound up and all of the charge wires 10 reach the end of their service life, an indication for wire replacement is made.

FIG. 12 shows a charge wire cassette according to a second alternative embodiment. This is structurally identical to the charge wire cassette of the first alternative embodiment, except that the cassette 1-
The case 22 is partially different in that it consists of separate case parts 22c and 22d, and in order to prevent the charge wire 10 from breaking during distribution or carrying, the case part 22 is
c and 22d are integrated with adhesive tape (not shown).

It is interposed between the continuous seat and the insulating member 3, and allows the locking member 4 to rotate under frictional resistance provided by the frictional member 33.

A terminal 6 is provided at the end of the insulating member 3 of the other end example, and a conductive wire receiver electrically connected to the terminal 6 has a roller 35 erected on the insulating member 3, while the A driving means 17 is provided for driving and rotating the locking member 5 in the wire winding direction.

The driving means 17 described in I- is provided with a worm wheel gear G1 □ connected to the locking member, and an A-mgya GI3 that meshes with the gear GI2 on the output shaft 19 of the motor M. The second control means 26 is electrically connected to the third control means 27 and the indicator lamp 2.
8 is set.

Facing this, the sumo wrestler case 22 is divided into two pieces, one empty wire connecting member 24 is locked and held by the locking member 5, and the charge wire 10 is unwound from the other wire connecting member 23. The charge wire cassette A, in which the wire connecting member 23 is locked and held by the locking member 4, is installed in the charger device B shown in FIG. 9.10 or FIG. 11.

In the embodiment, the cleaning signal is transmitted based on a predetermined cumulative number of times of image formation, and the wire replacement signal is transmitted based on the predetermined cumulative number of cleaning times.
This is merely an example, and changes such as, for example, transmitting a cleaning signal and a wire replacement signal based on the cumulative number of rotations of the photosensitive drum are possible.

FIG. 13 shows a third alternative embodiment of the charge wire force 1-A.
shows. This item is a disposable type,
One of the wire connecting members 23 and 24 is of a pulley type, and the other is of a small link type, and the end side of the charsi ear 10, which is long enough to be used twice, is connected to the one wire. While connecting to part +423,
FIG. 14 shows a charger device B having the other end connected to a small link type wire connecting member 24 and equipped with the charge wire cassette A.

This charger device B has a locking member 5 that removably locks the pulley-type wire connecting member 23 on an insulating member 2 provided at one end of a metal charge case 1. At the same time, a connecting member 4 electrically connected to the terminal 6 is provided on the other end of the charging case l, and the wire connecting member 24 of the small link type is provided. With the K tf member 4 holding the locking member 11 and the locking member 5 visually sliding against the biasing force of the coil spring 36, the charge wire 10 is wound around the wire connecting member 23. By holding the wire connecting member 23 in the locking member 5 while returning the charging wire 10, the charge wire 10 is tensioned with the tension exerted by the coil spring 37 being Nj-5.

〔Effect of the invention〕

As explained above, according to the charge wire cassette of the present invention, the locking member around which the charge wire is wound is housed in the cassette case, making it easy to distribute the charge wire to the general public while avoiding wire breakage. Then,
Moreover, the charge wire can be easily replaced without any tools by simply unwinding the charge wire wrapped around the wire connection member and locking and holding the wire connection member to the locking member on the charge case side. Since then, we have worked hard to meet the needs of general users.

Second, because it is a cassette type, it is excellent in terms of portability and handling, and in turn, it is suitable for maintenance of service personnel. Overall, the purpose of the present invention has been achieved through rationally improved technology.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the charge wire cassette, Fig. 2 is a plan view of the charger device, Fig. 3 is a vertical cross-sectional side view of the charger device showing the state before the charge wire is stretched, and Figs. 4 and 5 are the cassette case. - It is a partial perspective view showing an opening with the case upside down. FIG. 6 is a perspective view of the charge wire cassette of the first alternative embodiment, FIG. 7 is a schematic plan view, and FIG. 8 is a longitudinal sectional side view. FIG. 9 is a plan view of the charger device of the first alternative embodiment, and FIG. 10 is a longitudinal sectional side view of the charger device showing the state before the charge wire is stretched. FIG. 11 is a longitudinal sectional side view of a charger device according to a second alternative embodiment, and FIGS. 12 and 13 are perspective views of charge wire cassettes according to third and fourth alternative embodiments. FIG. 14 is a longitudinal sectional side view of a charger device according to a third alternative embodiment. 1... Charge case, 4.5... Locking member, IO
...Charge wire, 22...Caseso L-gauge,
22a to 22d... Gauge portion, 23.24... Wire connection member. Applicant: Sanda Kogyo Co., Ltd. Agent: Patent Attorney: Hideo Fujimoto 10000-Year Wire 22: Case I Case 22a, 22b - Case portions 23, 24: Wire connection member Fig. 6 ÷ ÷ Ll')

Claims (6)

[Claims] (1) A charge wire is connected to a wire connecting member that is locked and held by two locking members on the charge case side, and a charge wire is wound around at least one of the wire connecting members, and the two wires are A charge wire cassette consisting of a connecting member housed in a cassette case. (2) One of the locking members is drive-rotatable in the wire winding direction, and the other locking member locks and holds the wire connection member in a state that applies frictional resistance to the rotation of the wire connection member. one of the wire connecting members is removable from the other locking member, and
The charge wire cassette according to claim 1, wherein the other wire connecting member is configured to be detachable from the one locking member which can be driven and rotated. (3) Each of the locking members is drive-rotatable in the wire winding direction and the wire unwinding direction, and the wire connecting member is configured to be freely engageable and detachable from each of the locking members. The charge wire cassette described in (1). (4) The charge wire according to claim (1), wherein the cassette case is configured to be divisible into two parts, and each of the two divided case parts is provided with the wire connecting member. cassette. (5) One of the locking members is drive-rotatable in the wire winding direction, and the other locking member locks and holds the wire connection member in a state that applies frictional resistance to the rotation of the wire connection member. said one wire connecting member divided into two pieces can be freely engaged with and detached from said other locking member, and said other wire connecting member can be freely driven and rotated. The charge wire cassette according to claim 4, wherein the charge wire cassette is configured to be detachable from the locking member. (6) Each of the locking members is drive-rotatable in the wire winding direction and the wire unwinding direction, and the case portion divided into two parts is configured to be freely engageable and detachable from each of the locking members. The charge wire cassette according to claim (4).