JPH0661490U - Recording paper ejection mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] The purpose is to reduce the cost of one motor and to simplify the procedure for jamming recording paper. [Structure] The recording paper 11 is discharged by driving the motor when the cutter 2a attached to the wire 7 hung between the pulley 5 and the pulley 6 having a spur gear is returned from the cutting end position to the cutting start position. By transmitting from the pulley 6 with the tooth gear to the gear 9 with the one-way clutch 10 attached to one end of the shaft of the discharge roller 3 through the worm gear 8 with the spur gear, the discharge roller 3 is rotated in the counterclockwise direction of the recording paper discharge. The recording paper 11 is rotated and discharged. Here, when the cutter 2a moves from the cutting start position to the cutting end position, the rotation of the discharge roller 3 is stopped by the one-way clutch 10 attached to the discharge roller 3, and in the direction opposite to the recording paper discharge direction. It will not rotate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a recording paper ejection device.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 2, the recording paper 11 passes over the guide plate 1 and passes between the guide plate 1 and the slide cutter rail 2. Then, the leading end of the recording paper 11 enters between the discharge roller 3 and the pressure contact roller 4, and stops when the cutting position of the recording paper 11 of a predetermined rated size is reached. The discharge roller 3 and the pressure contact roller 4 are provided with three rollers 3a and 4a made of rubber on their shafts, whereby the recording paper 11 is gripped.

Explaining the cutting operation of the recording paper 11, the slide cutter rail 2 is provided with a slide-type cutter 2a, which is perpendicular to the conveyance direction of the recording paper 11 by a pulley 5, a pulley 6 and a wire 7. It can be moved in the cutting direction. With respect to the movement of these cutters 2a, a motor (not shown) drives the pulley 6. When the cutter 2a is at the cutting start position before the start of cutting, the pressing roller 4 is pushed upward by the solenoid, which is a pressing mechanism (not shown), and the discharge roller 3 and the recording paper 11 are pressed against each other. When the recording paper 11 is tensioned, it is cut by the cutter 2a.

The discharge operation of the recording paper 11 will be described. The motor (not shown) drives the discharge roller 3 and rotates the discharge roller 3 in the recording paper discharge direction to discharge the recording paper 11. The structure as described above was known.

[0005]

[Problems to be solved by the device]

 However, the conventional recording paper discharge device has the following problems. In the structure shown in FIG. 2, separate motors are used to drive the cutting operation and the discharging operation of the recording paper 11, which leads to a cost increase of one motor.

The structure shown in FIG. 2 is complicated by providing two drives, and it is difficult to deal with the jam of the recording paper 11. Therefore, in order to solve such a conventional problem, the present invention proposes a recording apparatus having a recording paper discharge mechanism that reduces the cost of one motor and simplifies the procedure for recording paper jam. For the purpose of provision.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention employs a configuration in which a drive motor for cutting a recording paper is also used to drive a discharge roller for performing a discharging operation in a recording paper discharging device.

[0008]

[Action]

 In the recording paper discharge device configured as described above, since the cutting and discharging of the recording paper can be driven by one motor, the cost for one motor can be reduced and the structure can be simplified. , The procedure for jamming the recording paper becomes easy.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings, taking a color thermal transfer recording apparatus as an example. In FIG. 3, the recording paper 11 is wound around the recording paper supply roll 11a in a roll shape, and although not shown, both core ends of the recording paper supply roll 11a are held, and the recording paper 11 can be fed forward and backward by a driving device (not shown). The recording paper 11 conveyed in the forward direction from the recording paper roll 11a is wound around the platen 12, and the thermal head 16 is arranged above the platen 12. Further, the conveyed recording paper 11 is sandwiched and gripped by a capstan 13 and a pinch roller 14.

A driving pulley (not shown) is integrally attached to one end of the capstan 13. The capstan 13 is driven by forward and reverse rotation of a stepping motor (not shown) to drive the pinch roller. The recording paper 11 gripped by 14 is reciprocated. Reference numeral 15a is an ink sheet supply roll, and 15b is an ink sheet take-up roll. Both ends of the core of the roll are held by the casing of the recording apparatus, although not shown.

Next, the printing operation will be described. When the thermal head 16 is separated from the platen 12, the ink sheet 15 rotates the ink sheet take-up roll 15b in a counterclockwise direction and drives a take-up motor (not shown) to drive the head. Send out. When the top color of the ink sheet 15 is finished, the thermal head 16 is pressed against the platen 12 by a driving device (not shown) to contact the platen 12, and a controller (not shown) is operated on a heating resistor part (not shown) of the thermal head 16. Then, heat is applied to melt the ink of the ink sheet 15, and transfer is performed on the recording paper 11.

The transferred recording paper 11 passes between a capstan 13 and a pinch roller 14, and passes through a guide plate 1 as shown in FIG. 1 to cut the recording paper 11 with a cutter 2 a and a slide cutter rail. It is guided to a discharge device (not shown) through the space between the two. First, the recording paper 11 passes over the guide plate 1 and passes between the guide plate 1 and the slide cutter rail 2. Then, the leading end of the recording paper 11 enters between the discharge roller 3 and the pressure contact roller 4, and stops when it reaches the cutting position of the recording paper 11 of a predetermined rated size. The discharge roller 3 and the pressure roller 4 have shafts provided with three rollers 3a 1 and 4a 2 made of rubber, whereby the recording paper 11 is gripped.

The cutting operation of the recording paper 11 will be described. The slide cutter rail 2 is provided with a slide type cutter 2a. This cutter 2a is attached to a wire 7 hung between a pulley 5 and a pulley 6 with a spur gear. It is attached so that it can be moved in a cutting direction perpendicular to the conveying direction of the recording paper 11. Regarding the movement of these cutters 2a, a motor (not shown) drives the pulley 6 with a spur gear. When the cutter 2a is at the cutting start position before the start of cutting, the pressure contact roller 4 is pushed up by the solenoid (not shown), which is a pressure contact mechanism, and presses the recording paper 11 against the discharge roller 3. Then, when the recording paper 11 is tensioned, the cutting is performed by the cutter 2a.

The discharge operation of the recording paper 11 will be described. The drive of the motor when the cutter 2a returns from the cutting end position to the cutting start position is discharged from the pulley 6 with the spur gear via the worm gear 8 with the spur gear. By transmitting to a gear 9 with a one-way clutch 10 attached to one end of the shaft of the roller 3, the ejection roller 3 is rotated counterclockwise of ejection of the recording paper, and the recording paper 11 is ejected. Here, when the cutter 2a moves from the cutting start position to the cutting end position, a clockwise rotational force acts on the gear 9 attached to the shaft of the discharge roller 3, but the gear 9 is attached to the discharge roller 3. The one-wake latch 10 stops the rotation of the discharge roller 3 and does not rotate in the direction opposite to the recording paper discharge direction.

In the present embodiment, the recording medium is recording paper, but it goes without saying that the type does not matter. Further, in this embodiment, a spur gear and a gear with a one-way clutch are attached to one of the pulleys and each of the discharge rollers, and both are connected by a worm gear with a spur gear, but the pulley and the discharge roller are connected by a power transmission mechanism. If so, it goes without saying that it is good.

[0016]

[Effect of device]

 As described above, according to the present invention, in the recording paper ejection device, the drive motor for cutting the recording paper is also used for driving the ejection roller for performing the ejection operation. Have.

Since there are only two motors instead of two, the cost is reduced by one motor. Since the structure is simple, the procedure for jamming the recording paper becomes easy.

[Brief description of drawings]

FIG. 1 is a diagram of a recording paper ejection device according to the present invention.

FIG. 2 is a diagram of a conventional recording paper discharge device.

FIG. 3 is a diagram regarding a recording paper feeding mechanism before cutting and discharging of the recording paper.

[Explanation of symbols]

 1 Guide Plate 2 Slide Cutter Rail 2a Cutter 3 Ejection Roller 4 Pressing Roller 5 Pulley 6 Pulley with Spur Gear 7 Wire 8 Wire Worm Gear with Spur Gear 9 Gear 10 One Way Clutch 11 Recording Paper 11a Recording Paper Supply Roll 12 Platen 13 Capstan 14 Pinch roller 15 Ink sheet 16 Thermal head

Claims (1)

[Scope of utility model registration request] 1. A slide-type cutter attached to a wire wound between two pulleys and moved in a cutting direction of the recording sheet by rotation of the pulley; and a slide-type cutter provided in a recording sheet discharge direction from the slide-type cutter position. Before the start of cutting, press and hold the above recording paper from above and below,
In a cutting and discharging mechanism for a recording sheet, which comprises a set of a discharging roller and a pressing roller for discharging after cutting, one of the pulleys and a rotary shaft of the discharging roller are coupled by a power transmission mechanism, and the discharging is performed. A one-way clutch that transmits rotation to the discharge side is attached to the rotation shaft of the roller. The discharge roller holds the recording paper in pressure contact during the cutting operation of the slide cutter, and returns after the cutting operation. A recording paper cutting and discharging mechanism characterized in that the recording paper is sometimes discharged.