JPH0114434Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new platen device for typewriter toys.

Conventionally, in this type of platen device, one in which a cylindrical body is covered with a rubber tube having a slightly smaller diameter is known.

In the conventional platen device described above, when attaching a rubber tube to a cylindrical body, the diameter of the rubber tube is stretched and the cylindrical body is inserted into the rubber tube. However, if the rubber tube is attached while enlarging the diameter of the rubber tube in this manner, workability is extremely poor and production is labor-intensive.

The object of the present invention is to provide a platen device for use in a typewriter machine, which allows the work of attaching tubes to be carried out easily and quickly.

In order to achieve the above object, the present invention has a combined cylinder formed by combining a pair of semi-cylindrical bodies, a tube made of rubber or synthetic resin coated around the outside of the combined cylinder, and a tube made of rubber or synthetic resin attached to the outside of the combined cylinder, and a crack in the combined cylinder. The tube has a sandwiched wedge member, and when the wedge member is inserted, the tube exhibits a state without slack, and when it is removed, the tube exhibits a state with slack.

The illustrated embodiment has a hollow platform 1 that is convex when viewed from the side, and is provided with support walls 3 and 3' on both left and right sides above a low point 2 at the rear of the platform 1. The moving table 4 is mounted so that it can reciprocate in the left and right directions by fitting the rails 5, 5' and the grooves 6, 6', and an angle is formed between the supporting walls 3, 3' of the moving table 4. The shaft 7 is provided so as to be freely rotatable by means of the line feed knobs 8 and 8'.
Also, a pair of semi-cylindrical bodies 11, 11' which are combined with a separate short rubber tube 10 to form a cylinder, and a wedge member 12 which is inserted between the semi-cylindrical bodies 11, 11' to increase the diameter thereof. A platen 13 is constructed by inserting the above-mentioned support walls 3 and 3', and this platen 13 is fixed to the above-mentioned square shaft 7 and is mounted between the support walls 3 and 3'. , lie down and paper 1
A paper holding plate 16 is disposed across the platen 13 so that the edge of the platen 13 is pinched and stands up to eliminate the pinching, and a magnet 17 and a magnetic plate 18 are attached to the front wall of the bottom of the moving table 4. The carbon paper holding plate 20 which holds the lower edge of the carbon paper 19 by mutual adsorption is supported vertically and swingably, and the upper surface of the rear recess 2 is given a leftward movement force with respect to the movable table 4. The mainspring 21 and the toothed rack 2 provided on the lower surface of the movable table 4
2 to allow intermittent movement of the movable table 4, and a spring 26 that always presses one claw part 24 of the swing claw 23 in the engaging direction, as well as the other claw part 24'.
It is equipped with a back-and-forth moving member 25 that is pushed out in the meshing direction by the operation of a character punching key 33 and a feeding key 35, which will be described later. Both lower ends of an inverted U-shaped member 29 are rotatably and vertically movably supported on the lower sides of both side walls of this recess 28, so that the inverted U-shaped member 29 can swing back and forth. A dial loading drum 30 for vertical use is integrally installed on the top surface of the dial 29, and a push-button character typing key 33 is returned to the front low point 28 of the base plate 1 by a coil spring 32, and a plate spring 34 is used to return the dial. Attach the feed key 35 from the push button type, and connect the lower end of the character input key 33 to the lower surface of the U-shaped member 29 to the link 3.
6 to connect the U-shaped member 29 so that it tilts backward when the character input key 33 is pressed and tilts forward when the key is released, and also connects the lower end of the feed key 35 with the above-mentioned forward and backward moving member 25. Between the front end and the front end, a transmission member 37 that applies a backward pushing force to the forward and backward moving member 25 when the feed key 35 is pressed and releases the rearward pushing force when the pressing is released is slidable back and forth. A guide member 3 is interposed in the link 36 and moves rearward as the character correction key 33 is pressed to swing the carbon paper holding plate 20 upward.
8, and a character typing key 33 is connected to the rear end of the transmission member 37 and the leg of the inverted U-shaped member 29.
Protrusions 40 and 40' that collide with each other to push the transmission member 37 rearward when pressed are integrally provided, respectively, and a piano touch type dial switching key 41 is provided on the lower surface of the recess 28 and on the upper surface of the base plate 1. An intermediate member 42 that swings back and forth and a guide member 44 that moves backward by the backward swing of the intermediate member 42 and returns to the front by a spring 43 are provided. A convex disk 49 has an inclined edge 46 that guides the shaft bearing rods 45, 45 of the shaped member 29 upward and an inclined edge 47 that guides it downward, and separately has a loading hole 48 in the center. Three dial faces 53, 53', 53'' are constructed by wrapping a semi-rigid synthetic resin band plate 52 with typefaces 51, 51' protruding in two rows, upper and lower, around the outer periphery of the large diameter portion 50 of the dial. However, these dials 53, 53', 53'' are the inverted U-shaped members 29 above.
The used dial loading drum 30 provided on the base plate 1 and the spare dial loading drums 54' and 54'' provided integrally on the right side of the base 1 are respectively rotatably and removably loaded. 30, a hook-shaped part 55 for preventing the dial from being pulled out, and dials 53, 53';
A jump-type stopper 57 is provided which engages with a serration 56 provided on the inner circumferential surface of the dial 53'' to prevent free rotation of the dials 53, 53', and 53''.

As described above, the present invention consists of a combined cylinder formed by combining a pair of semi-cylinders, a tube made of rubber or synthetic resin covered around the outside of the combined cylinder, and a wedge inserted between the cracks of the combined cylinder. When the wedge member is inserted, the tube exhibits a state with no slack, and when it is removed, the tube exhibits a state with slack. Therefore, first, a pair of semi-cylindrical bodies are combined. The tube can be attached easily and quickly by forming a cylinder into a cylinder, then covering the outer circumference of the combined cylinder with a tube, and then inserting a wedge member into the crack in the combined cylinder to make the tube tight. Moreover, it has an excellent effect of completely achieving the intended purpose.

[Brief explanation of drawings]

The figure shows an embodiment of the invention. 1st
The figure is a perspective view showing the whole, Figure 2 is a sectional view taken along the line A-A in Figure 1, Figure 3 is a bottom view of the key part for typing, and Figure 4 is taken along the line B-B in Figure 1. A sectional view, FIG. 5 is a bottom view of the key part for automatic feed, FIG. 6 is a sectional view taken along line C-C in FIG. 1, FIG. 7 is a bottom view of the key part for dial change, and FIG. A side view showing the relationship between the protrusion provided on the rear end of the transmission member and the protrusion provided on the leg of the inverted U-shaped member, Fig. 9 is an exploded perspective view of the platen, and Fig. 10 shows the dial loading part used. FIG. 1... base plate, 2... bottom, 3, 3'... support wall,
4...Moving table, 5,5'...Rail, 6,6'...
Concave groove, 7... Square shaft, 8, 8'... Line feed knob, 10... Tube, 11, 11'... Semi-cylindrical body, 12... Wedge member, 13... Platen, 15...
... Paper, 16 ... Paper holding plate, 17 ... Magnet, 1
8...Magnetic plate, 19...Carbon paper, 20...Carbon paper holding plate, 21...Spring, 22...Spinous tooth rack, 23...Swinging claw, 24...One claw part,
24'...Other claw part, 25...Back and forth moving member, 26
...Spring, 27...High place, 28...Concave place, 29...
...Inverted U-shaped member, 30...Dial loading drum used, 32...Coil spring, 33...Key for typing, 34...Key for feeding, 36...Link,
37...Transmission member, 38...Guiding member, 40,4
0'...Protrusion, 41...Dial switching key, 42
... Intermediate member, 43 ... Spring, 44 ... Guide member, 45 ... Bearing rod, 46, 47 ... Inclined edge, 4
8... Loading hole, 49... Convex disk, 50... Large diameter portion, 51, 51'... Type, 52... Strip plate, 5
3,53',53''...Dial, 54,54'...
Spare dial loading drum, 55... hooked part for preventing removal, 55... jagged part, 57... stopper.

Claims (1)

[Scope of utility model registration request] The wedge member has a combined cylinder formed by combining a pair of semi-cylindrical bodies, a tube made of rubber, synthetic resin, etc. that is coated around the outside of the combined cylinder, and a wedge member inserted into the crack of the combined cylinder. A platen device for a typewriter store, characterized in that the tube exhibits a state with no slack when the tube is inserted, and a state with slack when the tube is removed.