JP2596355Y2 - Recorder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a recorder for recording various recording data such as temperature and humidity from a process, and various recording data such as measurement conditions and conditions on recording paper. More particularly, the present invention relates to a recorder in which a cassette containing recording paper and a platen roller is detachably mounted.

[0002]

2. Description of the Related Art In a cassette type recorder of this type for recording an input value from an external process, a band-shaped recording paper and a platen roller for feeding the recording paper are housed in a cassette, and the cassette is mounted in an apparatus main body. It is removably mounted in the cassette storage section provided in. A variety of cassette mounting mechanisms have been proposed in the past, but the basic configuration of each of them is such that the cassette is inserted into the main body of the apparatus and set in a predetermined mounting position by being pushed up by a spring means. The contact structure is adopted.

FIGS. 9 and 10 are a side view and a front view, respectively, showing a conventional example of a recorder employing such a cassette mounting mechanism, wherein 1 is a U-shaped chassis which is open upward when viewed from the front. Are cassettes mounted in the chassis 1, 3
Is a cassette mounting mechanism disposed on the bottom surface of the chassis 1. The cassette 2 has a recording paper 4, a platen roller 5 to which the recording paper 4 is abutted, and a shaft 6, and is set on the cassette mounting mechanism 3. The cassette mounting mechanism 3 includes a push-up plate 7 arranged so as to be able to be pulled out along the bottom surface of the chassis 1 and leaf springs 8 arranged at four corners of the upper surface of the push-up plate 7, respectively. When the plate 7 is pulled out of the chassis 1, the cassette 2 is
Is placed on the rear side of the upper surface of the push-up plate 7 so as not to come into contact with the leaf spring 8, and when the push-up plate 7 is inserted into the chassis 1 in this state, the shaft 6 of the cassette 2 is formed on the side plate of the chassis 2. It stops when it comes into contact with the back end of a hook-shaped groove (not shown). When the push-up plate 7 is still inserted, the leaf spring 8 pushes up the cassette 2. As a result, the cassette 2 is set at a predetermined mounting position, and the abutting portion of the recording paper 4 that is in contact with the upper surface of the platen roller 5 contacts the pen cartridge 9. When pulling out the cassette 2 in the mounted state, when the push-up plate 7 is pulled out by a certain amount, the leaf spring 8 on the front side comes out of the bottom surface of the cassette 2 and the leaf spring on the rear side engages with the engagement provided on the bottom surface of the cassette 2. To move into the recess 10, the cassette 2 is released from the leaf spring 8 and falls by its own weight, and is then pulled out together with the push-up plate 7.

[0004]

In a recorder employing such a cassette system, a scale is printed on the printing surface of the recording paper 4 from left to right. It is necessary to mount the cassette 2 in the chassis 1 so that the position of the cassette 2 matches the initial position of the pen cartridge 9. However, the above-described conventional cassette mounting mechanism 3 does not include the means for positioning the cassette 2 in the left-right direction. Therefore, when the cassette 2 is mounted in the chassis 1, both side plates 1A and 1B of the chassis 1 and the cassette 2
If the cassette 2 is set to be shifted in the left-right direction due to the gaps d1 and d2 existing between them, there is a problem that a recording error occurs. Therefore, conventionally, when the cassette 2 is mounted, the gap in the left and right direction is checked each time, and the cassette 2 is brought into close contact with the inner surface of the left side plate 1A, which is the reference surface, so that the gap d1 is substantially zero. However, since it is troublesome to confirm and adjust the displacement and sometimes forget it, there is a demand for the development of a cassette mounting mechanism that can automatically correct the lateral displacement of the cassette.

The present invention has been made in view of such problems and demands of the related art. The purpose of the present invention is to make it possible to move a cassette to a reference surface side of a chassis at the time of mounting with a simple configuration. An object of the present invention is to provide a recorder capable of automatically correcting a lateral deviation.

[0006]

In order to achieve the above object, a recorder according to the present invention comprises a recording paper in which a cassette containing a recording paper and a platen roller for running the recording paper is detachably disposed in a chassis. A cassette mounting mechanism comprising: a vertically movable slide plate on which a cassette is mounted on a bottom plate of the chassis; and a push-up plate that pushes up the slide plate when mounting the cassette. A pair of projections respectively engaged with engagement holes provided on both side plates of the chassis, and a pair of protrusions provided on an end surface of the chassis opposite to the reference side plate side, and the cassette is mounted on the reference side plate side when the cassette is mounted. The push-up plate has a push-up portion that pushes up the slide plate, and is disposed so as to be able to be pulled out on the bottom surface of the chassis. Than it is.

[0007]

According to the present invention, when the cassette is displaced to the opposite side from the reference surface side of the chassis and placed on the slide plate, the displaced end of the cassette is placed on the inclined portion and is inclined. By sliding down the part, it moves to the reference plane side and automatically corrects the deviation in the left-right direction. The push-up plate pushes up the slide plate by the push-up section when loading the cassette, and sets the cassette at the cassette loading position.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. 1 to 8 show an embodiment of a recorder according to the present invention. FIG. 1 is a partially cutaway front view of the recorder, FIG. 2 is a side sectional view showing a cassette mounted state, and FIG.
FIG. 4 is a plan view of the same mounting state, FIG. 4 is a front view of the chassis, and FIG.
6 is a plan view of the chassis, FIG. 6 is a side view of the chassis, FIGS. 7A and 7B are a plan view and a front view of a slide plate,
FIGS. 8A to 8D are a plan view, a front view, and an A-
It is the sectional view on the A line and the BB line sectional view.

Referring to FIGS. 1 and 2, a schematic configuration of a recorder 11 to which the present invention is applied will be briefly described below. In the figure, reference numeral 12 denotes a casing of the recorder 11, and the casing 1
Reference numeral 2 denotes a substantially cubic body having an open front surface, in which a chassis 1 forming a storage space for the cassette 2, a wire hammer 9 as a recording means located above the cassette 2, and a cassette mounting for setting the cassette 2 to a mounting position. A mechanism 13 and the like are provided, and a display 14 constituting necessary information display and an operation unit of the recorder 11 is disposed above the wire hammer 9 in the front opening, and a transparent plate is provided. An openable and closable door (not shown) is provided. The door allows the chassis 1, cassette 2, wire hammer 9, cassette mounting mechanism 13, display unit 14, and the like to be viewed from the front of the recorder 11.

The cassette 2 has two compartments, namely, a recorded recording paper storage chamber 15a and an unused recording paper storage chamber 15b.
The recording paper 4 serving as a foldable chart is stored in b. At the center of the upper surface of the cassette 2, a platen roller 5 to which the recording paper 4 drawn from the unused recording paper storage chamber 15b is attached is provided. The platen roller 5 is provided in the housing 12. The recording paper 4 is configured to travel at a constant speed in response to rotation transmitted from a drive motor (not shown).

The wire hammer 9 is mounted on a carriage 17 slidably mounted on a main shaft 16 laid on the upper part of the chassis 1.
The printhead is reciprocated along the main shaft 16 along the main shaft 16 in the axial direction of the platen roller 5, stops at an arbitrary position, protrudes the wire, and presses the recording paper 4 via an ink ribbon (not shown) to print. It is configured to be.

In FIGS. 4 to 6, the chassis 1 for accommodating the cassette 2 is formed in a U-shape as viewed from the front by opening a top surface and front and rear surfaces by bending a metal plate. It comprises left and right plates 1A and 1B, and a bottom plate 1C connecting the lower ends of the left and right plates 1A and 1B. The inner surface of the left plate 1A forms the reference surface 20 of the cassette 2. A hook-shaped groove 21 into which the shaft 6 (see FIG. 1) provided in the cassette 2 is inserted at the time of mounting the cassette is formed at the front end surface of the left and right plates 1A and 1B at the intermediate portion in the height direction. This groove 21 is slightly inclined rearward and is a substantially horizontal horizontal groove portion 21 a that defines the insertion amount of the cassette 2.
And a vertical portion 21b bent at a substantially right angle above the inner end of the horizontal groove portion 21a. In the vicinity of the lower front ends of the left and right plates 1A, 1B, there are formed vertically long rectangular engaging holes 23 for holding a slide plate described later movably in the vertical direction. An insertion hole 25 through which a shaft 24 (FIG. 3) for rotatably supporting a push-up plate, which will be described later, is formed at the left corner of the front end of the bottom plate 1C. An arc-shaped (approximately 1/4 circle) guide hole 26 having a radius is formed. The chassis 1 having such a configuration is connected to the housing 12.
Inserted and fixed inside.

1 to 3, 7 and 8, the cassette mounting mechanism 13 includes a slide plate 28 on which the cassette 2 is mounted and a push-up plate 29 for moving the slide plate 28 up and down. ing.

As shown in FIG. 7, the slide plate 28 is formed of a rectangular plate elongated in the left-right direction. The slide plate 28 is formed on the left end surface so as to be vertically movable in the engagement hole 23 of the left plate 1A and to restrict the movement in the front-rear direction. And a projection 30 is integrally formed and protruded from the right end face.
Is provided over the entire width (length in the front-rear direction), and the tip of the inclined portion 31 is formed at the same angle as the front end so as to be vertically movable in the engagement hole 23 of the right side plate 1B and to move in the front-rear direction. The protruding portions 32 to be inserted while being regulated extend integrally. The inclination angle θ of the inclined portion 31 is 30 °
Degree. The width of the slide plate 28 is smaller than the depth of the cassette 2.

The push-up plate 29 is formed of a substantially triangular (fan-shaped) plate as viewed in plan as shown in FIG. 8, and is disposed on the bottom plate 1C of the chassis 1 so as to be freely pulled out by rotation. The top 29a is rotatably supported by the shaft 24 (FIG. 3). For this reason, the shaft 2 is provided on the top 29a.
A shaft hole 38 through which the hole 4 is inserted is formed. Push plate 2
An L-shaped operation unit 39 is integrally provided at the right end of the front end surface 29b of the front panel 9. On the other hand, the rear end face 29 of the push-up plate 29
c is a bent portion 4 whose tip is bent upward by the thickness of the plate.
Numeral 0 protrudes integrally with the guide hole 26 of the bottom plate 1C. The front end of the bent portion 40 has a width in the front-rear direction smaller than the width of the guide hole 26 and the axial hole 38.
Is approximately equal to the distance from the shaft hole 25 of the bottom plate 1C to the center of the guide hole 26.
In the center of the push-up plate 29, a resilient tongue-like push-up portion 41 formed by being cut and raised obliquely upward is formed. The push-up portion 41 is also formed in an arc shape around the shaft hole 38.

In the cassette mounting mechanism 13 having such a configuration, a dashed line in FIG. 3 indicates a state where the push-up plate 29 is pulled out from the chassis 1 forward, and a broken line indicates a state where the push-up plate 29 is housed in the chassis 1. In a state where the push-up plate 29 is pulled out in front of the slide plate 28, the bent portion 40
It passes under the slide plate 28 and is located in the front end of the guide hole 26, and the front end of the slide plate 28 is connected to the bottom plate 1 </ b> C of the chassis 1.
Slightly raised from. This is to make it easy for the push-up plate 29 to enter below the slide plate 28 when the cassette is mounted.

When the cassette 2 is mounted, the push-up plate 2
9 is pulled out, the left and right shafts 6 (see FIG. 1) are inserted into the grooves 21 (FIG. 6) of the left and right plates 1A and 1B, and the cassette 2 is inserted into the chassis 1;
8. At this time, if it is shifted to the right side,
The right end of the lower surface of the cassette 2 rests on the inclined portion 31 and is inclined downward and left. However, the cassette 2 slides down the inclined portion 31 so that the left side plate 1A, which is the reference surface of the chassis 1,
And is horizontally set on the slide plate 28, thereby automatically correcting a lateral deviation. In this state, the gap between the left side plate 1A and the cassette 2 becomes substantially zero. After the cassette 2 is placed on the slide plate 28, the operating portion 39 is pressed by hand to rotate the push-up plate 29 counterclockwise and insert it into the chassis 1 along the bottom plate 1C. Gradually pushes up the slide plate 28, rotates by a predetermined angle and stops when the bent portion 40 comes into contact with the rear hole wall of the guide hole 26, thereby setting the cassette 2 to a predetermined mounting position, and 4 is brought into contact with the wire hammer 9.

Thus, in the cassette mounting mechanism 13 having such a configuration, the lateral displacement of the cassette 2 is automatically corrected, and the inner surface 20 of the left side plate 1A serving as the reference plane is corrected.
The gap between the paper hammer 9 and the cassette 2 can be made substantially zero, so that the initial position of the wire hammer 9 and the origin position of the scale of the recording paper 4 can be accurately matched, and a recording error can be prevented. it can. In addition, when the cassette 2 is placed on the slide plate 28, it is not necessary to check and correct the displacement of the cassette 2 in the left-right direction each time, and the mounting work of the cassette 2 is extremely simple and easy.

In the above embodiment, the cassette mounting mechanism 13 is used.
Although the push-up plate 29 is configured to be able to be pulled out by rotation, it is needless to say that the push-up plate 29 may be pulled out by sliding in the front-rear direction.

[0020]

As described above, according to the recorder according to the present invention, when the cassette is placed on the slide plate, the deviation in the left and right direction is automatically corrected by the inclined portion, and the cassette is placed on the reference surface side of the chassis. Since it can be shifted, no recording error occurs, and it is not necessary to check and correct the displacement of the cassette at the time of mounting, so that the cassette can be mounted quickly.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a recorder.

FIG. 2 is a side sectional view showing a mounted state of a cassette.

FIG. 3 is a plan view of the mounting state.

FIG. 4 is a front view of the chassis.

FIG. 5 is a plan view of the chassis.

FIG. 6 is a side view of the chassis.

FIGS. 7A and 7B are a plan view and a front view of a slide plate.

8 (a) to 8 (d) are a plan view, a front view, and
It is the sectional view on the AA line, and the BB line sectional view.

FIG. 9 is a side view showing a conventional example of a recorder using a cassette mounting mechanism.

FIG. 10 is a front view of the recorder.

[Explanation of symbols]

 Reference Signs List 1 chassis 2 cassette 4 recording paper 5 platen roller 6 shaft 7 push-up plate 8 leaf spring 9 pen cartridge (wire hammer) 11 recorder 12 housing 1A, 1B side plates on both sides of chassis 1C chassis bottom plate 13 cassette mounting mechanism 20 reference surface 23 engagement Hole 28 Slide plate 29 Push-up plate 30 Projection 31 Slope 32 Projection 41 Push-up

Claims (1)

(57) [Scope of request for utility model registration] 1. A recorder in which a cassette accommodating a recording paper and a platen roller for running the recording paper is removably disposed in a chassis, wherein the cassette is mounted on a bottom plate of the chassis and is movable up and down. A cassette mounting mechanism including a slide plate and a push-up plate that pushes up the slide plate when the cassette is mounted is provided. The slide plate engages with engagement holes provided on both side plates of the chassis. A pair of protrusions, and an inclined portion provided on an end surface of the chassis opposite to the reference side plate side, and the cassette is moved toward the reference side plate side when the cassette is mounted. A recorder having a push-up portion for pushing up and being disposed so as to be able to be pulled out on the bottom surface of the chassis.