JPS6263739U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a cooling device for an electronic copying machine according to an embodiment of this invention, showing the state in which the cooling device is installed in the electronic copying machine, and FIGS. A schematic plan view showing a cooling device for an electronic copying machine according to different embodiments of
FIG. 5 is a perspective view of a louver according to yet another embodiment, and FIG. 6 is a schematic explanatory diagram of the optical system of an electronic copying machine, which is the background of this invention. (Explanation of symbols), 2...Contact glass (original table), 3...Moving part of optical system, 4...Lamp,
5... Mirror, 10... Cooling device, 12... Copying machine main body, 14... Cooling fan, 16... Second moving frame, 18a
, 18b, 18c, 18d...louver, 22... tension spring (louver driving means).

Claims (1)

[Claims for Utility Model Registration] 1. A cooling device for an electronic copying machine that cools a document table placed above a moving optical system, comprising: a fan for forcing outside air into the machine; and a fan placed in front of the fan. A cooling device for an electronic copying machine, comprising: a louver that directs outside air from the fan in a variable angle; and a louver driving means that changes the angle of the louver in accordance with movement of the optical system. 2. The louver has one end facing the fan pivoted, and the other end being a free end, so that the louver can swing around the one end as a rotation center, and the louver driving means 2. A cooling device for an electronic copying machine according to claim 1, further comprising a tension spring member for coupling a movable frame equipped with a movable optical system to the other end of the louver. 3 By being combined with the force of the tension spring,
A request for registration of a utility model further comprising an adjustment spring that is attached to the other end of the louver in order to apply a force to the other end of the louver to adjust the direction of the force acting on the other end of the louver. A cooling device for an electronic copying machine according to item 2. 4. The louver is pivoted at one end facing the fan, the other end is a free end, and is swingable about the one end as a rotation center, and the louver driving means is , a bar rotatably pivoted near one end of the louver with one end as a rotation center, and a bar that is engaged at an intermediate portion to a part of a movable frame equipped with the optical system and is displaced by movement of the movable frame; A cooling device for an electronic copying machine according to claim 1, comprising: a transmission gear that rotates one end of the louver in conjunction with the displacement of the bar to displace the louver. 5 Utility model registration claim 4, comprising an engaging member swingably attached to a part of the movable frame, and the engaging member is slidably engaged in an intermediate portion of the bar. A cooling device for an electronic copying machine as described in 2. 6 In the middle part of the bar, the middle part is
The bar is slidably abutted on a portion of the moving frame, and permanently presses the bar against the portion of the moving frame, thereby causing the bar to move in response to the movement of the moving frame. Utility model registration claim 4, which is provided with a biasing means that is swingably attached to a part
A cooling device for an electronic copying machine as described in . 7. The louver is fixed at a predetermined angle to a rotatably equipped cylindrical frame, and the louver driving means is a means for rotating the cylindrical frame in accordance with movement of the optical system. A cooling device for an electronic copying machine according to claim 1 of the utility model registration claim.