JPH033421Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a paper guide locking mechanism for setting the position of the paper guide according to the paper width in a front inserter installed in a serial printer to guide paper such as office forms.

Conventionally, when setting the position of the paper guide according to the width of the form using a front inserter, a knob screw 3 has been used to fix the paper guide 1 guided to the guide rail 2 as shown in FIG. However, when moving and positioning the paper guide 1,
The following operations are required.

Loosen knob screw 3. The paper guide 1 is moved and positioned on the guide rail 2.
Tighten the knob screw 3 to fix the paper guide 1.

Therefore, there is a drawback that it requires cumbersome operations such as loosening and tightening the knob screw 3.

The present invention provides a paper guide locking mechanism that solves the above-mentioned drawbacks by changing the paper guide locking mechanism from a knob screw type to a push button type.

According to the present invention, a guide rail fixed to a printer, a main body portion that guides the side edges of paper loaded in the printer and is guided by the guide rail, and a lock plate attached to this main body portion; A spring whose one end is fixed to the main body part is applied with force to press the lock plate against the guide rail to generate a braking force, and is pushed against the spring to cause the lock plate to release the braking force. A locking mechanism for a paper guide is obtained, which is characterized in that it includes an edge plate that allows the paper guide to be locked.

Next, embodiments of the present invention will be described with reference to the drawings.

Fig. 2 shows a serial printer with a guide rail 4 fixed to the upper part, which is an embodiment of the present invention.
A pair of paper guides 5 is fixed on the guide rail 4. Paper guides 5 on both sides of the form (not shown)
It is guided through a groove 6 provided in the serial printer and installed in the serial printer.

3 to 5 are a perspective view (spring 13 is omitted), a plan view, and a partial front view of the paper guide 5, respectively, and FIG. 6 is a sectional view AA' shown in FIG. 4. The guide rail 4 has a U-shaped cross section.
A guide piece 8, which is made up of rods with books facing each other and is fixed to the main body 7 of the paper guide 5, is guided by the guide rail 4. A pin 10 is fixed to a bracket 9 fixed to the main body 7, and a lock cover 12 is attached. Edge plate 1
1 is guided by engaging a pin 10 through a long hole 16 (which is obliquely inclined with respect to the guide rail 4). A retaining ring is attached to the tip of the pin 10 to prevent the edge plate 11 from slipping out from the pin 10. The lock plate 14 is attached with the lower part 14a inserted through a hole provided in the bracket 9 and placed on the bracket 9. Since this lock plate 14 is not fixed to any other member, its upper part is wider than the hole in the bracket 9 to prevent it from falling off. Edge plate 1
1 is a spring 1 with one end fixed to the bracket 9
3 and guided by the pin 10, the lock plate 14 is pressed against the guide rail 4.
Rubber is attached to the surface of the lock plate 14 that comes into contact with the guide rail 4, and the lock plate 14
When pressed against the guide rail 4, a braking force is generated to fix the paper guide 5.

When the lock release button 15 fixed to the edge plate 11 is pushed in the direction of arrow B against the spring 13, the edge plate 11 is guided by the pin 10 and separated from the lock plate 14, and the paper guide 5
The braking force is released and the paper guide 5 can be moved along the guide rail 4.

The operation of this embodiment will be explained with reference to FIG.

The lock cover 12 is secured to the bracket 9 at the point indicated by the reference numeral 20. When this button 15 is pressed while sandwiching the lock cover 12 and the lock release button 15, the lock plate 14 becomes free and the lock is released. Then, when the paper guide 5 is moved along the guide rail 4 and released at a desired position, it is locked and the paper guide 5 is fixed at that position.

As explained above, in this invention, the paper guide is fixed by pressing the lock plate against the guide rail by the force of the spring, and the paper guide is released by pushing the lock plate against the spring, thereby easily guiding the paper guide. or fix the
It has the effect of releasing fixation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional example, FIG. 2 is a perspective view of a serial printer, and FIGS. 3 to 6 are perspective views, plan views, partial front views, and
The AA' sectional view and FIG. 7 are explanatory views of the operation of an embodiment of the present invention. 1, 5... Paper guide, 2, 4... Guide rail, 3... Knob screw, 7... Body, 8... Guide piece, 9... Bracket, 10... Pin, 1
1...Edge plate, 13...Spring, 1
4...Lock plate, 15...Lock release button.

Claims (1)

[Claims for Utility Model Registration] A guide rail having a slit-shaped sliding shaft extending in the longitudinal direction, a paper guide that is slidably engaged on the sliding shaft of the guide rail, and a paper guide that is fixed to the paper guide and has a slit-like sliding shaft. a bracket having a planar portion extending in the longitudinal direction through the shaped sliding axis, protruding toward the opposite side of the paper guide with respect to the guide rail, and being located substantially on the same plane as the sliding axis of the guide rail; a plurality of pins provided on the plane portion and arranged upright in the longitudinal direction;
an edge plate that is slidably engaged with the flat portion and has a long hole inclined with respect to the longitudinal direction that engages the pin; and a lock plate that is held between the edge portion of the edge plate and the guide rail. and,
a spring means that is stretched in the longitudinal direction between the bracket and the edge plate and presses the lock plate against the guide rail via the edge plate; a lock release button that releases the pressure of the lock plate against the guide rail by sliding the plate in the longitudinal direction against the pressing force of the spring means; and at least the bracket of the lock release button that is fixed to the bracket. A locking mechanism for a paper guide, comprising: a locking cover, a part of which is provided on the opposite side of the paper guide.