JPH0266039A - Driving mechanism for facsimile device - Google Patents

Abstract

PURPOSE:To contrive the smallness of size by permitting a drive power transmitting means so as to switch the first and second driving means in a follow-up manner to rotation of a driving motor, in the case of a facsimile device having a transceiving function. CONSTITUTION:A document is inserted in transmission, when a document detecting switch is turned on, a driving motor 10 is rotated in a direction of arrow head D. Here a planet gear 11a, turning a lever plate 11 with a driving motor 10a in the direction of arrow head D, is meshed with the first reduction gear 4b. Accordingly, a reading platen roller 3c is driven conveying the document in a direction of arrow head E performing transmission. On the contrary, information is received, when a reception detecting switch is turned on, the driving motor 10 is reversely rotated in a direction of arrow head C, meshing the planet gear 11a with an inversing gear 6c, and a recording platen roller 5c is driven feeding recording paper to a thermal head 5 and recording the information. In this way, a device can be constituted of a single set of motor.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a facsimile machine having a transmitting function and a receiving function.

(Prior Art) Conventionally, a drive mechanism of a commonly used facsimile machine has two motors: a drive motor for conveying a document and a drive motor for conveying recording paper.

(Problems to be Solved by the Invention) However, since the above-mentioned conventional drive mechanism has two drive motors, the space occupied by the drive motors and the cost increase, resulting in miniaturization of facsimile machines. , could not respond to lower prices.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drive mechanism for a facsimile machine that can perform transmission and reception using individual drive motors.

(Means for Solving the Problems) A drive mechanism of a facsimile apparatus of the present invention includes a reading means for reading a document, a first drive means for conveying the document, a recording means for recording on recording paper, and A facsimile apparatus having a second drive means for conveying recording paper, a drive motor for driving the first drive means and the second drive means, and a transmission means for transmitting the driving force of the drive motor. The transmission means can be switched to the first drive means or the second drive means in accordance with the rotation of the drive motor.

(Function) During transmission, when the drive motor is rotated in the transmission direction, the planetary gear meshed with the drive gear of the drive motor follows and rotates around the drive gear, and meshes with the first reduction gear of the first drive means. do. As a result, the first driving means is activated to convey the original and read the original.

When the drive motor is rotated in the reception direction during reception, the planetary gear meshed with the drive gear of the drive motor follows and rotates around the drive gear, and meshes with the second fJIi speed gear of the second drive means. As a result, the second driving means is actuated to convey the recording paper and record the received data.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a drive mechanism 1 of a facsimile machine;
FIG. 2 shows a partially cutaway plan view.

In the figure, a drive mechanism 1 is configured such that a first drive means 4 having a document reading means 3 and a second drive means 6 having a recording paper recording means 5 can be switched by a single drive motor 10.

The document reading means 3 connects the image sensor 3a with the compression spring 3.
It is configured by pressing in the direction of the arrow A with the arrow b to press the reading platen roller 30. This platen roller 3C is rotatable by supporting both ends of a rotating shaft 3d with bearings 7a fixed to the chassis 2.

The first driving means 4 drives the platen roller 30.
A gear 4a is fixed to the end of the rotating shaft 3d, and a first reduction gear 4b is provided which meshes with the gear 4a. This first reduction gear 4b is rotatably attached to a shaft 8a mounted on a gear base 8. Also, between the gear 4a and the drive motor 10, a planetary gear lla and a first reduction gear 4b, which will be described later, are connected. By interposing the platen roller 3C, it rotates in a direction opposite to the rotational direction of the drive motor 10 and transmits the rotation to the platen roller 3C.

On the other hand, the document recording means 5 is constructed by pressing a thermal pad 5a in the direction of arrow B by a compression spring 5b and pressing it against a recording platen roller 5C. This platen roller 5C is rotatable by supporting both ends of a rotating shaft 5d with bearings 7b fixed to the chassis 2.

The second driving means 6 is the platen roller 5c.
A gear 6a is fixed to the end of the rotating shaft 5d, a second reduction gear 6b meshing with the gear 6a, and a reversing gear 6C meshing with the second reduction gear 6b. This second
The reduction gear 6b and the reversing gear 6C are shafts 8b mounted on the gear base 8.

Each is rotatably attached to 8C. Also, gear 6a
By interposing a planetary gear lla, a second reduction gear 6b, and a reversing gear 6C, which will be described later, between the drive motor 10 and the drive motor 10, the drive motor 10 rotates in the same direction as the rotation direction of the drive motor 10 and transmits rotation to the platen roller 5C. do.

The drive motor 10 is fixed to the back surface of the gear base 8 with screws or the like, has a rotating shaft 10a protruding from the surface of the gear base 8, and has a drive gear 10b press-fitted onto the rotating shaft 10a.

A lever plate 1 having a space 11b between it and the drive gear 10b is provided on the surface of the gear base 8 near the drive gear 10b.
1 is provided. This lever plate 11 is
One end thereof is rotatably attached to a support shaft 8d set on the gear base 8. In addition, the other end has a planted shaft 11C.
A planetary gear lla that meshes with the drive gear 10b is provided on the shaft 11C. This planetary gear 11a is a shaft 11C
It is rotatably attached to the lever plate 11 and always meshes with the drive gear 10b when the lever plate 11 is rotated. Further, a spring lid is rotatably attached to the tip of the shaft 11C. With this, the planetary gear
A is held down with an appropriate load and an appropriate slip torque is obtained.

Next, the operation of the drive mechanism 1 of this facsimile machine will be explained.

First, at the time of transmission, when a document is inserted into a facsimile machine, a document detection switch (not shown) is turned on, and the drive motor 10 rotates in the direction of the arrow. At this time, the planet gear lla
Since it has a moderate slip torque, the lever plate 11 rotates in the direction of the arrow as the drive motor 10 rotates, and the planetary gear 11a meshes with the first reduction gear 4b to reach the state shown in FIG. Become. Therefore, the rotational force of the drive motor 10 is transmitted to the reading platen roller 30 via the drive gear IQb, the planetary gear 11a, the first reduction gear 4b, and the gear 4a. As a result, the document is sandwiched between the image sensor 3a and the reading platen roller 3C, and is conveyed in the direction of arrow E by the frictional force between the reading platen roller 3C and the document, and the information on the document is sequentially read by the image sensor 3a. go.

Next, at the time of reception, when the facsimile machine receives information, a reception detection switch (for example, an electrical switch such as a transistor, not shown) is turned on, and the drive motor 10 is activated by arrow C.
Rotate in the direction. At this time, since the planetary gear lla is provided with an appropriate slip torque, the lever plate 11 rotates in the direction of arrow C as the drive motor 10 rotates, and the planetary gear lla meshes with the reversing gear 6c, as shown in FIG. The state shown in is reached. Therefore, the rotational force of the drive motor 10 is transmitted to the recording platen roller 50 via the drive gear 10b, the planetary gear 11a, the reversing gear 6C1, the second reduction gear 6b, and the gear 6a. As a result, the recording paper sandwiched between the thermal head 5a and the recording platen roller 5C is conveyed in the direction of arrow F by the frictional force between the recording platen roller 50 and the recording paper, and the received information is transferred to the thermal head 5a. Record them sequentially on recording paper.

(Effects of the Invention) As described above, according to the present invention, it is possible to perform both transmission and reception using - number of drive motors, making it possible to downsize and lower the price of facsimile machines. becomes.

[Brief explanation of the drawing]

1 to 4 show drawings of the present invention, FIG. 1 is a front view showing the drive mechanism of the facsimile machine, FIG. 2 is a partially cutaway plan view of the same, and FIG. 3 is a transmission state of the drive mechanism. FIG. 4 is a front view showing the receiving state of the drive mechanism. Figure 1

Claims (1)

[Claims] 1) A reading means for reading a document, a first driving means for conveying the document, a recording means for recording on recording paper, and a second driving means for conveying the recording paper. A facsimile machine comprising: one drive motor that drives the first drive means and the second drive means; and a transmission means that transmits the driving force of the drive motor, and the transmission means transmits the rotation of the drive motor. 1. A drive mechanism for a facsimile machine, characterized in that the drive mechanism can be switched to the first drive means or the second drive means according to the following.