JPH075375Y2 - Pen recorder pen moving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pen moving device in a pen recorder.

[Prior Art] When a signal is recorded on a recording paper by a recording pen, a pen moving device for moving the recording pen in a direction perpendicular to the paper feeding direction is required.

FIG. 3 is a perspective view showing a conventional apparatus, in which 1 is a recording pen, 2 is a pen carriage, 3 is a reference axis, 4 is a sliding axis, 5 is a timing belt, 6 is a belt holder, and 7 is a holder. It is a receiving tray.

The axes of the reference shaft 3, the sliding shaft 4, and the timing belt 5 are parallel to each other and perpendicular to the paper feeding direction of the recording paper (not shown). The recording pen 1 is mounted on the pen carriage 2 so as to be rotatable about a rotation axis parallel to the reference axis 3. The pen carriage 2 is mounted on the reference shaft 3 and the sliding shaft 4 so as to be slidable in the direction of the reference shaft 3. Since it is mounted on two axes, rotation around the axis is prevented.

FIG. 4 shows the belt holder 6 and the holder receiver 7 in FIG.
FIG. 3 is an exploded perspective view of FIG. 3, in which the same reference numerals as those in FIG. 3 denote the same or corresponding portions, and 60 denotes a constricted portion provided at the central portion in the axial direction of the belt holding portion 6, 70, 71, 72 , 7
Reference numeral 3 is a leaf spring portion that constitutes the holder receiver 7.

The timing belt 5 is inserted into the belt holder 6 to prevent relative movement of the timing belt 5 in the axial direction, and the belt holder 6 is held between the leaf spring portions 70, 71, 72, 73 of the holder receiver 7. By being inserted, the leaf spring portion 70 and the constricted portion 60 are engaged with each other to prevent relative movement between the belt holder 6 and the pen carriage 2 in the axial direction of the reference shaft 3.

The leaf springs 70, 71, 72, 73 all have appropriate elasticity so that the belt holder 6 can be easily inserted and the belt holder 6 after insertion can be locked.

When the timing belt 5 is driven by the motor and the pulley (not shown), the pen carriage 2 slides on the reference shaft 3.

[Problems to be Solved by the Invention] Since the conventional pen moving device is configured as described above, the belt holder 6 is attached to the holder holder 7 of the pen carriage 2.
There was a problem that the leaf spring portion 70 was easily broken when it was inserted into the.

An object of the present invention is to solve the above-mentioned problems in the conventional device and to provide a pen moving device in which the relative movement between the timing belt 5 and the pen carriage 2 does not occur and the holder receiver is not damaged. I am trying.

[Means for Solving the Problem] In the present invention, a step portion is provided at both ends in the axial direction of the belt holder, and the step portion engages with the step portion of the holder holder to provide the belt holder and the holder holder. Prevented axial movement between and. Further, a tooth profile is provided on the back surface of the timing belt so that the tooth profile is engaged with the tooth profile provided on the belt holder.

[Operation] Since there is no constriction in the central portion of the belt holder in the axial direction,
Since the belt holder is locked, the structure of the leaf spring portion provided on the holder receiving side is simplified and is not damaged when being attached or detached.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. First
3 is a perspective view showing an embodiment of the present invention, in which the same reference numerals as those in FIG. 3 designate the same or corresponding parts, and those different from the structure of FIG. This is the part of the receiver 7.

FIG. 2 shows the belt holder 6 and the holder receiver 7 in FIG.
2 is an exploded perspective view showing the same parts as those in FIG. 1, 50 is a timing belt tooth model, 61 is a lateral groove provided in the axial direction of the belt holder 6, and 62 is a lateral groove 61. A holder tooth profile is provided, 63 is a stepped portion provided at each axial end of the belt holder 6, 74 is a stepped portion provided on the holder receiver 7, and 75, 76 and 77 are leaf spring portions.

The timing belt 5 is inserted into the lateral groove 61 of the belt holder 6, and the timing belt tooth mold 50 is engaged with the holder tooth mold 62 to fix the space between the timing belt 5 and the belt holder 6.

Since the belt holder 6 does not have a constriction in the center, the structure of the leaf spring portions 75, 76, 77 for receiving it is simple.

Further, the stepped portion 63 of the belt holder 6 comes into contact with the stepped portion 74 of the holder holder 7 to prevent relative movement in the axial direction between the belt holder 6 and the holder holder 7.

Since the leaf springs 75, 76, 77 have a simple structure, they are not damaged when the belt holder 6 is attached or detached.

[Advantage of the Invention] As described above, according to the present invention, it is possible to obtain the pen moving device in which the belt holder can be easily attached to and detached from the holder receiver without damaging the holder receiver.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a belt holder and a holder receiver in FIG. 1, and FIG. 3 is a perspective view showing a conventional device. 4 is an exploded perspective view showing the belt holder and the holder receiver in FIG. 1 ... Recording pen, 2 ... Pen carriage, 3 ... Standard axis, 4 ... Sliding axis, 5 ... Timing belt, 6 ... Belt holder, 7 ... Holder holder, 50 ... Timing belt Tooth type, 61 …… Side groove, 62 …… Holder tooth type, 63 …… Step portion, 74 …… Step portion, 75,76,77 …… Leaf spring portion. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A pen carriage which holds a recording pen of a pen recorder is slidably held in the axial direction of these two axes by a reference axis and a sliding axis which are parallel to each other, and is fixed to the pen carriage. In a pen moving device of a pen recorder, wherein a timing belt fixed to a belt holder engaged with a holder holder is configured to move the pen carriage with respect to the two axes. A timing belt tooth profile is formed, the belt holder is provided with a lateral groove into which the timing belt is inserted, and a holding tool tooth profile that engages with the timing belt tooth profile is formed in the lateral groove. Stepped portions are provided at both ends, and the holder holder is engaged with the stepped portions at both ends of the belt holder to engage the belt holder and the holder holder. A stepped portion is provided to prevent relative movement in the axial direction between the gear and the case, and relative movement between the timing belt and the belt holder is prevented by engagement of the timing belt tooth mold and the holder tooth mold. The relative movement between the belt holder and the holder receiver is prevented by the engagement between the stepped portion of the belt holder and the stepped portion of the holder receiver.