JPH0110655Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The invention includes a light pen for reading barcoded information and a rotatable pen hanging part for hanging and holding the light pen. It relates to an information reading device.

Conventional Structure and Problems Generally, in this type of information reading device, the pen hanging part consists of an L-shaped pole that is rotatably supported by the main body of the reading device, and a winding that is attached to the free end of this L-shaped pole. The light pen is supported so as to be movable up and down by connecting a signal line that electrically connects the light pen and the main body to the winding device. however,
Conventional information reading devices do not have a mechanism for regulating the rotation of the L-shaped pole within a predetermined angular range and stopping it at a predetermined angular position. If the light pen is out of reach of the operator's hand when the light pen is needed again, the operator must move it and return it to the use position. Further, when the L-shaped pole rotates in only one direction, the signal wire of the light pen wraps around the base end of the pole, causing problems such as breakage.

Purpose of the invention The present invention solves the above-mentioned conventional drawbacks.
By restricting the pen hanging part to rotate only within a predetermined angular range and allowing it to stop at a predetermined angular position, the light pen is always within the bending range of the operator's hand, making it easy to use. An object of the present invention is to provide an information reading device which can return to the original state and also prevents the signal line of a light pen from being disconnected.

Composition of the invention In order to achieve the above object, the present invention includes a light pen for reading barcoded information;
The information reading device is equipped with a rotatable pen hanging part for suspending and holding the light pen, and the pen hanging part is equipped with a pole rotatably supported by a fixed bearing, and the pen hanging part includes a pole rotatably supported by a fixed bearing. A stopper pin protruding from the pole is provided at a position adjacent to one end surface of the bearing, engagement recesses formed by an inclined surface and a stopper surface are provided at two appropriate locations in the circumferential direction of the one end surface of the bearing, and An information reading device is provided, which is provided with an elastic means that always urges the stopper pin to come into contact with one end surface of the bearing.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

In FIG. 1, reference numeral 1 denotes the main body of the information reading device, and on the front surface of the main body 1, a keyboard section 2 and a display section 3 are arranged. Main body 1
is electrically connected to a light pen 4 for reading barcoded information via a signal line 5, and the signal line 5 is connected to a pen hanging part rotatably supported on the upper surface 1b of the main body 1. By supporting
A light pen 4 is indirectly held suspended. The pen hanging part 6 includes an L-shaped pole 7 having a base end rotatably supported on the rear end of the upper surface 1b of the main body 1, and a signal line located at the midpoint of the horizontal part of this L-shaped pole 7. 5, a spring 8 for preventing the intermediate portion from hanging down, and a winding device 9, located at the free end of the L-shaped pole 7, for raising and lowering the light pen 4.

As shown in Fig. 2, the pen hanging part 6, that is, the L-shaped pole 7, has its rotation restricted to a range of 180 degrees, and can be stopped at each position 180 degrees apart. . The mechanism for this purpose is constructed as shown in FIGS. 3 and 4. That is, the base end of the L-shaped pole 7 is rotatably supported by a bearing 10 fixed to the upper surface 1a of the main body 1, and a stopper surface perpendicular to the inclined surface 11a is placed at a position displaced by 180 degrees on the lower end surface of the bearing 10. 11b is provided, and a stopper pin 12 protruding from the pawl 7 is provided at a position adjacent to the lower end surface of the bearing 10 of the pawl 7.
is provided. The pole 7 is always urged upward by a spring 14 housed in a bearing 13 fixed inside the main body 1.
The stopper pin 12 is always pushed out from the lower end surface of the bearing 10.

In the above configuration, when the pen hanging part 6, that is, the light pen 4 is in the use position shown by the solid line in FIG. 2, the stopper pin 12 is in contact with the horizontal part of the lower end surface of the bearing 10, When the pen hanging part 6 is rotated and brought to one of the standby positions shown by the imaginary lines in FIG. This action restricts further rotation of the pen hanging portion 6. To return the pen hanging part 6 to the use position, press the stopper pin 1.
2 may be rotated so as to pass over the inclined surface 11a of the engagement recess 11.

In the above embodiment, the engagement recess 11 was provided at a position displaced by 180 degrees, but the L-shaped pole 7
When the base end of the main body 1 is rotatably supported on the front part of the upper surface 1a of the main body 1, it is preferable to provide an engaging recess 11' at a position displaced by approximately 360 degrees as shown in FIG. In the figure, the engaging recess 11' is shown to be at the front, but it is actually provided at the rear.) Naturally, the rotation angle range of the pen hanging portion 6 is not limited to those of these embodiments, and can be appropriately selected depending on the requirements of each case.

Effects of the invention Since the invention has the structure as explained above, it has the following effects.

(1) The rotation of the pen hanging part that suspends and holds the light pen is regulated within a specified range, so the light pen will not be unduly separated from the operator, and the signal wire will not wrap around the pole and break. .

(2) Since the pen hanging part can be stopped and held in a predetermined position, work efficiency is improved by always having the light pen waiting in the same place.

(3) Since the engaging recess has an inclined surface, the pen hanging part can be smoothly returned to the use position, and the stopper mechanism is not damaged due to repeated rotation and stopping of the pen hanging part. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of an information reading device according to the present invention, FIG. 2 is a plan view of the device, and FIG.
The figure is a vertical sectional view showing a stopper mechanism according to a first embodiment of the present invention, FIG. 4 is an enlarged perspective view of the main part of the same mechanism, and FIG. 5 is a main part of a stopper mechanism according to a second embodiment of the present invention. It is an enlarged perspective view. 1... information reading device body, 4... light pen,
6...Pen hanging portion, 10...Bearing, 11...Engagement recess, 11a...Slope surface, 11b...Stopper surface, 14...Stopper pin.

Claims (1)

[Scope of utility model registration request] An information reading device comprising a light pen for reading barcoded information and a rotatable pen hanging part for hanging and holding the light pen, the pen hanging part being mounted on a fixed bearing. A stopper pin protruding from the pole is provided at a position adjacent to one end surface of the bearing of the pole, and an inclined surface and a stopper pin are provided at two suitable locations in the circumferential direction of the one end surface of the bearing. 1. An information reading device comprising: an engaging recess formed by a stopper surface; and an elastic means for biasing the stopper pin so as to constantly contact one end surface of the bearing.