JP2600768Y2 - Parallel part adjustment device for frame - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for adjusting a parallel portion of a frame, which can adjust a mounting state of a movable frame mounted on a fixed frame in parallel with the fixed frame.

[0002]

2. Description of the Related Art For example, in a conventional time stamp equipped with a dot printer, a printer frame (movable frame) on which a dot printer is mounted is moved up and down with respect to a main frame (fixed frame) using one connecting shaft. When printing, the printer frame is lowered and rotated so that the printer head approaches the printing surface of the inserted printing paper, and then the dot printer is driven to print. It is configured to print.

Therefore, in the mounting portion of the frame configured as described above, unless the parallel accuracy of the connection shaft hole formed in the main frame and the printer frame is improved, the parallelism of the printer frame with respect to the main frame must be improved. The right and left sides of the printer head have different clearances from the platen, resulting in a problem that the density of the printed characters on the right and left sides is not constant.

However, it is technically very difficult to tighten the parallel tolerance of the shaft hole for the connecting shaft between the printer frame and the main frame, and there is a limit in the manufacturing technology. It was almost impossible to make them completely parallel.

In view of the above, a shaft hole for a connecting shaft formed in both frames or one of the frames is formed in a vertically long hole, and after connecting the two frames, the mounting position of the connecting shaft is adjusted along the long hole. It has been conceived to adjust the parallel state of the printer frame by moving to correct an error in clearance from the platen.

[0006]

However, the correcting means for moving the connecting shaft along the above-mentioned elongated hole is to manually move the connecting shaft and screw the connecting shaft to the moving position. It is necessary to perform a fixing work, and the adjustment work is very delicate and difficult, and there is a problem that the fine adjustment such as 0.1 mm or less cannot be performed because the adjustment has to be performed by so-called intuition.

The technical problem of the present invention is that the parallel tolerance of the shaft hole for the connecting shaft between the movable frame (printer frame) and the fixed frame (main frame) must be reduced.
An object of the present invention is to configure a parallel portion of both frames in an adjusting manner so that the parallel state can be easily and accurately finely adjusted.

[0008]

Means taken by the present invention to solve the above technical problems are as follows.

A connecting shaft 4 is installed between the left and right mounting portions of the fixed frame 2, and the movable frame 3 is mounted on the connecting shaft 4 in a vertically rotatable manner.

(1) One mounting portion 2 of the fixed frame 2
A mounting hole 2c is formed in the mounting hole 2c, and one end 4T of the connection shaft 4 is inserted into the mounting hole 2c, and the center of the adjustment plate 6 is turned around the side surface of the one mounting portion 2a. and movably supported, and bored shaft hole 6c for inserting the end portion 4T of the connecting shaft 4 the central portion on one side surface of the adjustment plate 6 by sandwiching, and, on the other side fastening screw B
One for drilling a long insertion hole 6d in the vertical direction for inserting the S
On the other hand , the mounting portion 2a has a screw hole 2e for a tightening screw BS.
Is provided, and the adjusting plate 6 is screwed into the screw hole 2e through the insertion hole 6d.
Can be fixed to the mounting portion 2a side by tightening
At the same time, a protrusion 6 b is provided on one end surface of the adjustment plate 6.
On the fixed frame 2 side near the projection 6b.
The tip DR of the Phillips screwdriver against the projection 6b
To form a receiving hole 2b for receiving engagement and rotation
That .

( 2 ) The movable frame 3 attached to the fixed frame 2 is a printer frame to which a printer 5 for printing is attached.

[0012]

The above means operates as follows.

According to the means described in the above (1), when the adjust plate 6 pivotally supported by one of the mounting portions 2a of the fixed frame 2 is turned up and down, the one end 4T side of the connecting shaft 4 is moved up and down. Therefore, the movable frame 3 can be moved up and down by the vertical movement of the connecting shaft 4 to adjust the movable frame 3 in parallel with the fixed frame 2, and when the parallel adjustment by the adjust plate 6 is completed, the tightening screw is By tightening the BS and fixing the adjustment plate 6 to the mounting portion 2a side, it is possible to fix the position of the connection shaft 4 and maintain the movable frame 3 in the parallel state.

Further , according to the means described in the above (1) , when the tip DR of the Phillips screwdriver is inserted into the receiving hole 2b drilled in the fixed frame 2, the adjustment plate 6 projects into the groove of the tip DR. If the Phillips screwdriver is rotated left or right in this state, the adjustment plate 6 is turned up or down to move the one end 4T side of the connecting shaft 4 up or down. Therefore, the parallelism of the movable frame 3 can be finely adjusted in accordance with the rotation operation of the plus screwdriver.

According to the means described in the above (2) , one end 4 of the connecting shaft 4 is operated in accordance with the turning operation of the adjustment plate 6.
When the T side is moved up and down, one side of the movable frame 3, that is, one side of the printer frame is adjusted up and down, and one side of the head of the printer 5 can be finely adjusted up and down. By adjusting the interval, it is possible to perform clear printing with a constant density on the left and right.

As described above, the above-mentioned technical problems can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an apparatus for adjusting a parallel portion of a frame according to the present invention;

FIG. 1 is a side view for explaining a configuration in which the frame parallel portion adjusting device according to the present invention is applied to the time stamp 1. FIG. 2 is a time stamp cut along the line XX of FIG. 1A and 1B are cross-sectional views illustrating the configuration of a frame 1 in which an upper case body and a lower case body constituting a time stamp 1 are provided in an upper case body 1A. 3 shows a fixed frame (main frame).

Reference numeral 3 denotes a movable frame (printer frame) which is attached to the inside of the fixed frame 2 by means of a connecting shaft 4 so as to be freely rotatable up and down. When the printing paper (not shown) is inserted between the upper case body 1A and the lower case body 1B at the time of printing when attached, the operating mechanism using the motor M as a drive source causes the movable frame 3 to move toward the front end side. Is rotated downward with the connection shaft 4 as a fulcrum, so that the head of the dot printer 5 approaches the printing surface of the printing paper and the dot printer 5 is moved laterally along the printer shaft 5a to perform necessary printing. Is configured to do so.

Further, in the drawing, reference numeral 2a denotes one mounting portion of the fixed frame 2 on which the connecting shaft 4 is installed, and one end 4T of the connecting shaft 4 is shown in an enlarged view of a main part shown in FIG. As described above, a vertically long mounting hole 2c drilled at the end of the mounting portion 2a.
It is inserted in the upper and lower freely.

In FIGS. 1 and 2 and FIGS. 4 and 5, which are enlarged views of the essential parts, the reference numeral 6 designates a support shaft 6a projecting from the center of the inner surface. An adjustment plate which is rotatably supported on the outer surface of the mounting portion 2a by being fitted into a support hole 2d formed in the center of the mounting portion 2a. On one side, a slightly laterally elongated shaft hole 6c for inserting one end 4T of the connection shaft 4 is provided, and on the other side, a vertically long insertion hole through which a screw portion Ba of a fastening screw BS described later is inserted. A hole 6d is drilled. In the figure, reference numeral 4a denotes one end 4T of the connection shaft 4 inserted into the shaft hole 6c of the adjustment plate 6.
This is a retaining bracket attached to

The fastening screw BS having the screw portion Ba is always screwed into the screw hole 2e provided in the mounting portion 2a by passing the screw portion Ba through the insertion hole 6d of the adjustment plate 6. When the screw is tightened, the adjustment plate 6 is fixed to the outer surface of the mounting portion 2a. When the adjustment plate 6 is loosened, the adjustment plate 6 is allowed to rotate vertically.

In the drawing, reference numeral 6b denotes a projection formed on one end surface of the adjustment plate 6, and the projection 6b
As shown in FIG. 4, the screwdriver is protruded from the outside of the upper case body 1A so as to be able to engage with the groove of the tip DR of the screwdriver inserted into the receiving hole 2b formed in the fixed frame 2. Tip D
R moves the protrusion 6b up and down to adjust the adjustment plate 6
Is configured to be rotatable up and down around the support shaft 6a.

Since the apparatus for adjusting the parallel portion of the frame according to the present invention has the structure as described above, if the movable frame 3 is not mounted parallel to the fixed frame 2,
First, the adjusting plate 6 is made rotatable by loosening the tightening screw BS a little, and then the adjusting plate 6 is turned either up or down with the hand or the tip DR of the Phillips screwdriver, so that the connecting shaft 4 Since the one end 4T side can move up and down to move one side of the movable frame 3 up and down, the movable frame 3 can be adjusted in parallel with the fixed frame 2 by this up and down movement. BS
The parallel state of the movable frame 3 can be maintained by loosening again.

[0025]

As described above, according to the apparatus for adjusting the parallel portion of the frame according to the present invention, the movable plate is moved up and down by moving one side of the connecting shaft up and down by adjusting the adjusting plate up and down. The adjustment of the parallel part can be performed very easily and accurately, and the fine adjustment of 0.1 mm or less is possible. Since it is not necessary to increase the parallel accuracy of the shaft hole drilled in the frame, it is easy to machine the parallel portion and reduce the cost. The present invention can be applied to a movable frame, that is, a mounting portion of a printer frame.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a configuration of a time stamp in which a frame parallel part adjusting device according to the present invention is implemented.

FIG. 2 shows a configuration of a fixed frame and a movable frame by X in FIG.
It is sectional drawing cut | disconnected and shown along the -X line.

FIG. 3 is an enlarged side view of a part of a fixed frame, which is a main part of the present invention.

FIG. 4 is an enlarged side view showing a state in which an adjusting plate, which is a main part of the present invention, is moved up and down.

FIG. 5 is a side view showing a state in which the adjustment plate is fixed with a fastening screw.

[Explanation of symbols]

 2 Fixed frame (Main frame) 2a Mounting part 2b Receiving hole 2c Mounting hole 2d Support hole 2e Screw hole 3 Movable frame (printer frame) 4 Connecting shaft 4T One end 5 Dot printer 6 Adjust plate 6b Projection 6c Shaft hole 6d Insertion hole BS Tightening screw DR Phillips screwdriver tip

Claims (2)

(57) [Scope of request for utility model registration] A connecting shaft is provided between left and right mounting portions of a fixed frame, and a movable frame is mounted on the connecting shaft so as to be rotatable up and down. A vertically long mounting hole 2c is formed in one of the mounting portions 2a, and one end 4T of the connection shaft 4 is inserted into the mounting hole 2c, while an adjustment plate 6 is formed on a side surface of the one mounting portion 2a. Is pivotally supported at the center thereof, and a shaft hole 6c into which one end 4T of the connection shaft 4 is inserted is formed on one side of the adjustment plate 6 with the center therebetween. Is provided with a vertically long insertion hole 6d through which the fastening screw BS is inserted, while the mounting portion 2a is provided with a screw hole 2e for the fastening screw BS, and the adjusting plate 6 is inserted through the above-mentioned insertion hole. Tightening screw screwed into this screw hole 2e through hole 6d By tightening of the BS, it is fixed freely configured on the mounting section 2a side, the adjustment
A protrusion 6 b is provided on one end surface of the plate 6, and the protrusion 6 b
Near the fixed frame 2 near the tip of a Phillips screwdriver.
The end DR is rotatably engaged with the projection 6b.
A parallel part adjusting device for a frame, wherein a receiving hole 2b is formed . Wherein the movable frame 3 attached to the fixed frame 2, parallel portions adjusting device frame according to claim 1, characterized in that the printer frame attached printer 5 for printing.