JPH089227B2 - Printer - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device.

2. Description of the Related Art In recent years, electronic typewriters have become popular in place of manual typewriters because they have good operability and many have many functions, and there is a demand for lower priced electronic typewriters.

An electronic typewriter which is a conventional printing device will be described below. FIG. 3 is a side view of a main part of a conventional electronic typewriter, and 1 is a radial arrangement of spokes.
A type wheel in which a type 1b is arranged at the tip of 1a, 2 is a holder for holding the type wheel 1 inside, 3 is a supporting piece 3a and 3b, and a type striking means (not shown in the figure).
The holder 2 is held with play in the carriage. 4 is a support body that is supported by the carriage 3 and serves as a guide for the holder 2.
Is a type selection motor having support pieces 5a and 5b and a coupling portion 5c that engages with the type wheel 1, and selects the type 1b by rotating the type wheel 1, and 6 is a guide supported by the support pieces 3a and 3b. It is a shaft, and the type selection motor 5 is a support piece.
It is slidably supported by the guide shaft 6 via 5a and 5b. Reference numeral 7 is a screw for fixing the guide shaft 6 to the support piece 5b, and 8 is a lever which is rotatably held by the type selection motor 5 and engages with the carriage 3. The lever 8 is rotated in a direction indicated by an arrow A. As a result, the character selection motor 5 moves along the guide shaft 6 in the direction indicated by the arrow B. Reference numeral 9 is a leaf spring that presses the holder 2 against the support 4 when the type selection motor 5 is in a position close to the type wheel 1, and 10 is a screw that fixes the leaf spring 9 to the type selection motor 5.

Regarding the conventional electronic typewriter configured as described above, the case of replacing the type wheel will be described below.

When printing is performed, the character selection motor 5 is positioned close to the character wheel 1, the coupling portion 5c and the character wheel 1 are in an engaged state, and the coupling portion 5c and the character wheel 1 rotate integrally. To do. Further, since the holder 2 is pressed against the support 4 and fixed, the character wheel 1 is in a state where it does not accidentally contact the holder 2.

When the type wheel 1 is replaced, when the lever 8 is operated from this state to move the type selection motor 5 to a position away from the type wheel 1, the coupling portion 5c and the type wheel 1 are separated, and the leaf spring 9 is also removed. The holder 2 is separated from the holder 2 and is held in the carriage 11 with play, so that the holder 2 can be easily removed.

Next, after replacing the type wheel 1 together with the holder 2, the lever 8 is operated again to bring the type selection motor 5 closer to the type wheel 1 so that the type can be printed again.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional configuration, the leaf spring 9 for pressing and fixing the holder 2 to the support body 4 is required, and the screw 10 for fixing the leaf spring 9 is also required, and the number of parts is increased. There was a problem that there were many.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a printer having a simpler structure while having the same function.

MEANS FOR SOLVING THE PROBLEMS The present invention is directed to a printing member having a plurality of typefaces for printing, a housing means for housing the printing member, and a printing member provided so as to be movable in the coaxial direction with respect to the printing member. Drive means for rotating the drive means, a connecting member provided on the rotary shaft of the drive means for connecting with the printing member, a movable conveying means for accommodating the accommodating means with a gap in the axial direction, and a accommodating means for conveying. A biasing means for elastically biasing the driving means toward the printing member so that the coupling member of the driving means couples with the printing member in a state of being inserted in the housing portion of the means, and a biasing force of the biasing means. A separating mechanism that operates so that the connecting member and the printing member are separated from each other, and a guide member that is movably supported by both mounting members of the driving means and the conveying means and that guides the driving means along the moving direction. , And the transportation means A printing device that prints by changing the type of a printing medium by rotating the driving means while the connecting member and the printing member are connected while moving, wherein the guide member is the printing member. It is provided so as to come into contact with the storage means in a state of being connected to the storage means, and to be separated from the storage means in the separated state of the separating mechanism.
The other end is attached so as to be engaged with an engaging portion provided on the guide member.

Operation In the present invention, the guide member, which has conventionally functioned as a guide during the movement of the drive means, is brought into contact with the storage member in the state where the connecting member and the printing member are connected, and the urging means is Since one end is attached to the attachment member of the drive means and the other end is attached to engage with the engagement portion provided on the guide member, the attachment is easy and the number of parts is reduced. .

Embodiment FIG. 1 is a side view of a main part of an electronic typewriter which is a printing apparatus according to an embodiment of the present invention, in which 1 is a printing wheel (printing member having a plurality of printing bodies), and 2 is a holder (storage means). ) 4 is a support body, 5 is a type selection motor (driving means), and 8 is a lever (separation mechanism). Since these have the same construction as the conventional example, the same reference numerals are given and their explanations are omitted. To do.

Reference numeral 11 denotes a carriage having support pieces (mounting members) 11a and 11b for holding a character striking means (not shown) and the like, and a holder 2 for holding the holder 2 with play, and 12 is further shown in FIG. Groove (engagement part) 12 at the end as shown in detail
a is formed and is supported by the support pieces 11a and 11b, and the type selection motor 5 is supported via the support pieces (mounting members) 5a and 5b.
Slide shaft (guide member) for holding, 13 is groove 12a
Is a spring (urging means) attached to the support piece 5b.

Further, the coupling portion 5c is a connecting member, and the carriage 11 is a conveying means.

Regarding the electronic typewriter of the present embodiment configured as described above, the case of replacing the type wheel will be described below.

When printing is performed similarly to the conventional example, the character selection motor 5 is positioned close to the character wheel 1, and the coupling portion 5c and the character wheel 1 are in the engaged state. Further, since the holder 2 is pressed and fixed to the support 4 by the slide shaft 12, the type wheel 1 is in a state of not inadvertently contacting the holder 2.

When the type wheel 1 is replaced, when the lever 8 is operated from this state to move the type selection motor 5 to a position away from the type wheel 1, the coupling portion 5c and the type wheel 1 are separated and the slide shaft 12 is also moved. When the holder 2 is separated from the holder 2, the holder 2 is held in the carriage 3 with play, and can be easily removed.

Next, after exchanging the type 1 with the holder 2, the lever 8 is operated again and the type selection motor 5 is positioned close to the type wheel 1 to enable printing again.

In addition, according to the present embodiment, it is not necessary to separately provide a member for urging the holder 2 unlike the conventional example, so that the number of parts can be reduced and the holder 2 can be mounted by the slide shaft 12 which is heavier than the leaf spring. Since the holder 2 is fixed, the holder 2 is pushed by a larger inertial force, and the generation of vibration of the holder 2 can be suppressed.

EFFECTS OF THE INVENTION With the above-described configuration, the present invention can provide a printer having an extremely simple structure having the same function as the conventional one.

[Brief description of drawings]

FIG. 1 is a side view of a main part of an electronic typewriter which is a printing device according to an embodiment of the present invention, and FIG. 2 is a perspective view of the same part.
FIG. 3 is a side view of a main part of a conventional electronic typewriter. 1 …… Type wheel, 1a …… Spoke, 1b …… Type, 2
...... Holder, 4 ...... Support, 5 ...... Type selection motor,
5a, 5b ... Supporting piece, 5c ... Coupling part, 8 ... Lever, 11 ... Carriage, 11a, 11b ... Supporting piece, 12 ... Slide shaft, 12a ... Groove, 13 ... Spring.

Claims (1)

[Claims] 1. A printing member having a plurality of typefaces for printing, a storage means for storing the printing member, and a movable member provided coaxially with the printing member.
Driving means for rotating the printing member, a connecting member provided on a rotation shaft of the driving means for connecting to the printing member, and a movable carrier for accommodating the accommodating means with a gap in the axial direction. And the storage means is inserted into the storage portion of the transport means, the drive means is elastically biased toward the print member so that the connecting member of the drive means connects with the print member. Urging means, a separating mechanism that operates so as to separate the connecting member and the printing member against the urging force of the urging means, and is movable to both mounting members of the driving means and the conveying means. A guide member that is supported by the guide member and that guides the drive unit along the movement direction thereof, and the drive unit rotates while the transport unit moves while the connecting member and the printing member are connected to each other. By changing the type of the printing body to perform printing, the guide member is brought into contact with the storage means in a state where the connecting member of the driving means is connected to the printing member, The biasing means is provided so as to be separated from the storage means in the separated state of the separation mechanism, and one end of the biasing means is an attachment member of the drive means, and the other end is an engaging portion provided on the guide member. A printing device, which is mounted so as to be engaged with the printing device.