JPH0110215Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a recording paper winding mechanism in a recorder.

In electronic self-balancing recorders, there are two types of recording paper supplied: rolls and folding paper, which are alternately folded at appropriate pitches.The size of these sheets depends on the type of recorder and the paper size. Selected depending on the recording purpose. In a normal recorder, these recording sheets are stored and printed while being fed along a predetermined path, after which they are gradually ejected out of the recorder from the discharge end. In this case, since the foldable type recorder is folded and stored in a suitable storage means installed inside or outside the recorder housing, no particular inconvenience occurs.

On the other hand, if you leave a long roll of recording paper as it is ejected from the recorder,
It becomes uncontrollable as it spreads out or meanderes irregularly. Therefore, in such a case, a winding mechanism and a large space for it must be secured within the recorder housing, or an external winding mechanism must be used. However, when the winding mechanism is internally installed, it is necessary to secure a recording paper winding space of the maximum size expected to be used, so the recorder main body becomes significantly large. In addition, in the case of an external take-up mechanism, this mechanism must be equipped with a dedicated motor for winding, or a complex transmission mechanism that engages with the recording paper drive mechanism of the main body when connected to the main body. Must be.

When using recording paper with a large winding size, the present invention stores the winding mechanism inside the recorder without increasing the size of the recorder, and pulls it out from the recorder body only when in use to install the winding reel. It is an object of the present invention to provide a recording paper winding mechanism that can be supported in a transmission manner.

Briefly, the present invention is a recording paper roll supporting shaft, a guide roller, and a drive wheel with a sprocket, which are held on both side plates of a recorder mechanism that supports the drive wheel with a sprocket so as to be movable along the surfaces of these plates. It consists of a pair of parallel pull-out brackets, and has either a storage position in which substantially the entirety thereof is hidden by or combined with the side plates, and an operating position in which the main part thereof protrudes into the space on the recording paper ejection side outside the side plates. A recording paper winding section is provided, each of which is provided with a bearing member for supporting a rotating shaft of a recording paper take-up reel at its free end. A mechanism is provided which is transmission-coupled with the sprocketed drive wheel at the position and transmits the rotation transmitted thereby to the corresponding bearing member.

Therefore, the main body of the recorder does not become large, and the winding section can be stored in the storage position when the recorder is not in operation or when there is no need to wind up the recording paper discharged outside the recorder even when the recorder is in operation. If you do that, it won't take up any space. Then, when the winding section is pulled out only when it is necessary to wind up the recording paper, the rotation is automatically transmitted to the bearing section at its free end (on either side);
If the take-up reel is supported by this, it will automatically rotate in synchronization with the recording paper feed drive mechanism, making it possible to wind up the recording paper without strain.

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

In FIGS. 1 and 2, 1 is one side plate of the recorder main body, and between the other side plate (not shown), a roll 2a of recording paper 2, a guide roller 3, and a drum for driving the recording paper are installed. 4 is supported in a crosslinking manner. In the figure, the recording paper roll 2a is arranged at the center of the side plate 1, the guide roller 3 is arranged at the upper right position, and the drum 4 as a recording paper drive wheel is arranged at the upper left position. A recording paper guide plate 5 connecting the guide roller 3 to the drum 4 is fixed to the upper edges of both side plates. The drum 4 is provided with a sprocket (not shown) that engages with a feed hole in the side edge of the recording paper 2. However, instead of the sprocketed drum 4, the guide plate 5 is extended to form a curved surface similar to that of the drum, and only the sprocket wheel is coaxially supported as the recording paper drive wheel. may be slidably fed onto this curved surface.

A gear train 6 for rotationally driving the recording paper driving wheel 4 such as the drum is disposed on the outer surface of the side plate 1. The first gear 6a of the gear train 6 is fixed to the output shaft 8 of a rotary drive source 7 consisting of an appropriate motor, and intermediate gears 6b, 6c, . . .
The rotation is transmitted to the final gear 6g via f. The support shaft 9 of the final stage gear 6g supports a gear (not shown) that is transmission-coupled to a recording paper drive wheel 4 such as a drum on the back side of the side plate 1 (inside the recorder mechanism). As a result, when the drive source 7 is activated, the gear train 6 from the first gear 6a to the final gear 6g is activated to transmit rotation to the recording paper drive wheel 4, and the recording paper 2 pulled out from the roll 2a is moved to the guide roller. 3 to a feed path connecting the guide plate 5 and the drive wheels 4.

A recording paper winding section 10 that protrudes or retracts forward (to the left of the side plate 1 in FIGS. 1 and 2) is movably supported between both side plates. As shown in FIGS. 1 and 2, the winding section 10 has flanged guides 11 and 12 protruding from the bracket body, and these guides 11 and 12 are connected to slots 13 formed in the front and back direction in the side plate 1. , 14, so that it can be retracted and retracted from both side plates.

FIG. 3 is a top view of the bracket 15a on the side plate 1 side of the pair of brackets forming the main body in the recording paper winding section 10. As shown in FIG. In FIG. 3, the flanged guide 11 also serves as a bearing for the winding section input shaft 16, and an input gear 17 is fixed to the outer end of the input shaft 16, that is, to the guide 11 side, and to the inner end thereof. A belt pulley 18 is supported. The belt 19 supported by this pulley 18 passes through a guide pulley 20 to a bearing pulley 21 at the front end of the bracket.
The pulleys 18 and 21 are supported by the pulleys 18 and 21.

FIG. 4 shows the back side of the bracket 15a, and the bearing pulley 21 at the front end has a bullet support 22 for elastically receiving the shaft (not shown) of the recording paper take-up reel and driving the shaft by friction. .

5 and 6 show the bracket 15b which should be located on the other side plate side. In the case of this bracket 15b, the bearing member 21' at the front end is a bearing for rotatably supporting the reel shaft. Since it only has the groove 22', a transmission mechanism like the bracket 15a is not provided. Also,
The other features and shape of this bracket 15b are symmetrical with those of the bracket 15a.

Since the embodiment of the present invention is constructed as described above, when the winding section 10 is pulled out from the position shown in FIG. 1 to the position shown in FIG.
2 rides on the horizontal portions at the rear ends of the corresponding guide slots 13 and 14, and due to the lever effect due to the weight of the bracket 15a, the input gear 17 is strongly engaged with the final gear 6g in the gear train of the side plate 1. In this state, the shaft of the recording paper take-up reel is supported on the bearing members 21 and 21' of the brackets 15a and 15b shown in FIGS. Once entwined, the recording paper 2 can be wound up and carried in conjunction with the ejection from the drive wheel 4.
When the winding diameter of the recording paper 2 increases and an overload occurs, the take-up reel slips with respect to the bearing member 21, so that the recording paper can be smoothly wound at the recording paper discharge speed.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of an embodiment of the present invention, FIG. 2 is a side view of the main parts of the same embodiment in a different state,
Figure 3 is a top view of one winding section bracket;
The figure is a back view, FIG. 5 is a top view of the other winding bracket, and FIG. 6 is a back view. 1... Side plate, 2... Recording paper, 3... Guide roller, 4... Recording paper drive wheel, 6... Gear train,
7... Drive source, 10... Winding section, 15a, 15b
... Bracket, 17 ... Input gear, 21,2
1'... Bearing member.

Claims (1)

[Claims for Utility Model Registration] a By rotatably supporting a recording paper roll support shaft, a recording paper guide roller, and a recording paper drive wheel with a sprocket between both side plates, the recording paper can be moved after the guide rollers. In a recorder that is sent to a predetermined print position and discharged to the outside of the both side plates at a position where it passes the drive wheel, b. a gear train arranged and supported along the outer surface of one of the both side plates; a rotation transmitting section configured to transmittively connect the initial stage gear to the drive source and the final stage gear to the recording paper drive wheel, and (c) move along the plate surfaces of the both side plates. a pair of parallel drawer-type brackets that are held so as to be able to move, a storage position where substantially the entirety thereof is hidden or combined with the side plates, and a main portion of which is located outside the side plates on the recording paper ejection side. d. In the recording paper winding section, the recording paper winding section is capable of occupying one of the operating positions protruding into the space of the recording paper winding section, and is provided with a bearing member that supports a rotating shaft of the recording paper winding reel at its free end. A recording paper winding mechanism characterized in that the bracket corresponding to the one side plate is provided with a mechanism that engages with the final stage gear of the rotation transmission section in the operating position and transmits the rotation to the corresponding bearing member. .