JPH04351577A - Serial printer cooling device - Google Patents

Abstract

PURPOSE:To provide a low cost serial printer cooling device capable of cooling also other parts in which a temperature rises, using an axial flow fan for cooling a carrier motor. CONSTITUTION:A part in which a temperature rises 12 such as a sheet feed motor is arranged near the end of the rotary shaft of a freely reversible carrier motor 4 and an axial flow fan 15 is fixed to the temperature rising part 12 side of the rotary shaft 10. Each time the rotating direction of the carrier motor 4 changes, the axial flow fan 15 rotates backward to change the wind direction. Subsequently, the carrier motor 4 is cooled using the axial flow fan 15, when a carrier 1 is moved in a one direction. Another part in which a temperature rises 12 is cooled by using the axial flow fan 15 for cooling the carrier motor 4 when the carrier 1 is moved in the other direction.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a serial printer.

0002

[Prior Art] Conventionally, in a serial printer in which a carrier on which a print head is mounted is driven back and forth by a carrier motor that can freely rotate in forward and reverse directions, the carrier motor is cooled by an axial fan fixed to the rotating shaft of the carrier motor. There is a cooling device. Further, serial printers have parts such as paper feed motors whose temperature increases when they are operated, and conventionally, a cooling device such as a heat sink is provided for the parts whose temperature increases.

0003

Conventionally, in order to cool the temperature rising components, other cooling devices such as heat sinks must be separately provided, which poses a problem of increasing costs.

0004

[Means for Solving the Problems] The present invention provides a serial printer in which a carrier on which a print head is mounted is reciprocally driven by a carrier motor that can freely rotate in forward and reverse directions. A temperature increasing component such as the following was arranged, and an axial fan was fixed to the temperature increasing component side of the rotating shaft.

[0005]

[Operation] Every time the rotation direction of the carrier motor changes, the axial fan reverses and the wind direction changes, so when the carrier is moved in one direction, the axial fan cools the carrier motor, and the shaft for cooling this carrier motor A flow fan can be used to cool other temperature-raising components as the carrier is moved in the other direction.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be explained based on the drawings. 1 is a carrier, and a print head 2 is mounted on this carrier 1. Further, this carrier 1 is slidably fitted onto a carrier shaft 3 parallel to a platen (not shown). Reference numeral 4 denotes a carrier motor that can freely rotate in forward and reverse directions, and is provided with a power transmission mechanism 5 that converts the rotational motion of the carrier motor 4 into linear motion and transmits the linear motion to the carrier 1. The power transmission mechanism 5 includes a timing belt 6 partially fixed to the carrier 1, a plurality of pulleys 7 and 8 around which the timing belt 6 is wound, and a transmission gear that rotates integrally with one of the pulleys 7. 9 and the rotating shaft 1 of the carrier motor 4
The drive gear 11 is fixed at zero and meshed with the transmission gear 9. A paper feed motor 12 as a temperature increasing component is fixedly disposed near the end of the rotating shaft 10 of the carrier motor 4. A rotating shaft 13 of this paper feed motor 12 is perpendicular to the moving direction of the carrier 1, and a drive gear 14 is attached to this rotating shaft 13 for transmitting rotational force to a feed roller (not shown) that feeds the paper. Fixed. An axial fan 15 is fixed to the paper feed motor 12 side of the rotating shaft 10 of the carrier motor 4.

In such a configuration, when the carrier motor 4 is driven, its rotational force is transmitted to the timing belt 6, and the carrier 1 moves to the right or left depending on the rotation direction of the carrier motor 4. At this time, each time the rotational direction of the carrier motor 4 changes, the axial fan 15 reverses and the wind direction changes, so when the carrier 1 is moved in one direction, the carrier motor 4 is cooled and the carrier motor 4 is moved in the other direction. At times, other paper feed motors 12 can be cooled. As a result, the axial fan 15 can be used to cool the carrier motor 4 to cool other temperature-increasing components such as the paper feed motor 12, thereby reducing costs.

[0008]

Effects of the Invention The present invention provides a serial printer in which a carrier on which a print head is mounted is reciprocally driven by a carrier motor that can freely rotate in forward and reverse directions. Since the components are arranged and the axial fan is fixed on the temperature increasing component side of the rotating shaft, the axial fan is reversed and the wind direction changes every time the rotation direction of the carrier motor changes, so the carrier can be moved in one direction. When the carrier motor is moved in the other direction, the carrier motor can be cooled down, and other temperature-rising parts can be cooled down when the carrier motor is moved in the other direction. Therefore, each time the rotation direction of the carrier motor changes, the axial fan reverses and the wind direction changes. When the carrier is moved in one direction, the carrier motor is cooled by an axial fan, and when the carrier is moved in the other direction, the other temperature-rising parts are cooled using the axial fan for cooling the carrier motor. is possible,
Thereby, the structure of the cooling device can be simplified and costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

[Explanation of symbols]

1　　　　　　　　　　Career 2 Print head 4 Carrier motor 10 Rotation axis 12 Temperature rising parts 15 Axial fan

Claims (1)

[Claims] 1. A serial printer in which a carrier on which a print head is mounted is reciprocally driven by a carrier motor that can freely rotate in forward and reverse directions, in which a temperature-increasing component such as a paper feed motor is arranged near an end of a rotating shaft of the carrier motor. A cooling device for a serial printer, characterized in that an axial fan is fixed to the temperature increasing component side of the rotating shaft.