JPS5812267Y2 - electromagnetic counter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in electromagnetic counters, and more particularly to a structure for holding lead wires for external connection of electromagnets disposed within a counter frame.

Conventionally, this type of electromagnetic counter has used a metal counter frame that is approximately U-shaped, and an electromagnet that drives the number wheel in steps is fixed inside the bottom plate of the counter frame.
Therefore, in such an electromagnetic counter, not only is the work to solder the terminal on the right side of the magnetic field and its lead wire for external connection done at the central office side, but also the direction in which the lead wire is pulled out after connection is The strength against tensile force cannot be guaranteed.

In other words, in order to prevent disconnection from occurring at the connection between the terminal on the electromagnet side and the lead wire, it is recommended to adopt a structure in which the lead wire is held directly on the counter frame or a cover that covers the outside of the counter frame. However, this is difficult due to space issues within the counter, so conventional devices either rely on soldering to connect the loose lead wires to the terminals, or use bushings to prevent the lead wires from being pulled out. A structure is used in which the counter frame is pulled out through the counter frame.

However, in the former case, this method lacks strength and reliability, and in the latter case, it is unfavorable in terms of workability when assembling the counter. It is desirable to have a structure that allows the connection work between the lead wire and the lead wire to be easily performed, and that can more reliably prevent disconnection of the connection portion.

The present invention was developed in view of the above circumstances.One side plate of the counter frame is formed as a separate frame from a synthetic resin material, and a lead wire for external connection of the electromagnet is provided on the outer gIU surface of this frame side plate. The simple structure of providing a recessed part for storage and holding and a through hole in a part of it to communicate with the inside of the counter frame makes it easy to connect the terminal on the electromagnet side and the lead wire for external connection. The present invention provides an inexpensive electromagnetic counter that not only can be used for a long time, but also can securely house and hold a lead wire in a recessed portion to improve reliability in terms of strength of a connecting portion.

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

1 to 4 A and B show an embodiment of an electromagnetic counter according to the present invention, and in this embodiment, an integrating electromagnetic counter used for displaying the number of copies in, for example, a copying machine, etc. Show the case where it is applied.

In these figures, reference numeral 1 denotes a first frame that is integrally formed of synthetic resin and constitutes one side plate of the counter frame, and 2 is a metal plate bent and formed into an abbreviated shape, which is also the other side of the counter frame. The second frame constitutes the side plate and the bottom plate, and by combining and integrating the first and second frames 1.degree.2, a counter frame having a substantially U-shape is formed.

That is, according to the present invention, one of the opposing side plates constituting the counter frame is made of a synthetic resin material as a separate frame that does not affect the custom-made magnetic path of the electromagnet, which will be described later. This allows the lead wire to be held securely.

First, to briefly explain the general structure of this type of electromagnetic counter, a number wheel shaft 3 and a pinion shaft 4 are integrally vertically installed inside the first frame 1, while a number wheel shaft 3 and a pinion shaft 4 are vertically installed inside the first frame 1. Holes 5 and 6 for supporting the other ends of both shafts 3 and 4 are bored in the side plate portion 2a.

Of course, the shafts 3 and 4 may be separate parts and installed inside the first frame 1 made of a metal plate, but if they are integrally formed from a synthetic resin material as described above, the number of parts can be reduced. This is advantageous because it allows for reduction.

Further, the holes 5 and 6 of the second frame 2 do not necessarily have to be through holes, but may be mere blind holes, in short,
Any configuration is sufficient as long as it can support the other ends of both shafts 3 and 4 when combined with the frame 1 of the present invention.

According to such a configuration, it is possible to extremely easily assemble the plural number wheels 7 and the pinion 8 interposed between the number wheels 7 and performing a shifting action.

In other words, the force that is vertically installed on the first frame 1,
The number wheel 7 and pinion 8 may be alternately inserted into the shafts 3 and 4 from the other end side.

At this time, it is necessary to align the displayed numerals on each number wheel I, but it is clear that this can be done much easier than the conventional work performed between opposing side plates of the counter frame.

After the number wheel 1 and pinion 8 are mounted on the shaft, it is preferable to assemble the counter frame by assembling the second frame 2 to the first frame 1.

As shown in FIG. 1, connection pieces 9 and 10 are integrally provided on the upper and lower edges of the first frame 1 and project in the same direction as the shaft 3.・Ru.

Then, by pressing the bent pieces 11, 12 on the second frame 2 side into the fitting grooves 9avlOa provided at the tips of the connecting pieces 9, 10, both frames 1,
2 is integrated.

At this time, the protrusions 13a and 13b protruding from the side edges of the bottom plate portion 2b of the second frame 2 engage with the notch grooves 14a*14bVc on the side edges of the first frame 1, and The protrusion 15 protruding from the connecting piece 10 is also engaged with the cutout groove 16 of the second frame 2.

Further, according to this embodiment, each member constituting the electromagnetic counter is appropriately assembled to the first and second frames 1.2, so that the entire assembly can be easily performed. is taken into consideration.

That is, inside the first frame 1, there is a pole 1 having a pair of pawls 17as17b that mesh with the ratchet 7a integrated with the least significant digit number and the car I and move it forward.
A support shaft 1a for pivotally supporting 7 is provided in a protruding manner on 7 bodies.

The engagement groove 1 formed on the base side of this pawl 17
7 c The armature 18 is assembled with the l1c1 tip 18a engaged.

In this embodiment, a groove 1b for temporary fixing into which the tip 18a of the armature 18 is previously inserted is formed inside the first frame 1, so that both the armature 18 and the pole 11 are connected to the first frame 1. It is constructed so that it can be easily assembled to the frame 1 of.

This is because the engagement between the armature 18 and the pole 17 causes trouble when the armature 18 is assembled to the second frame side, and is not necessarily limited to this. An electromagnet 19 is fixed together with a core 20 inside the bottom plate portion 2b of the second frame 2, and this electromagnet 1
Front flange 2 of synthetic resin bobbin 21 constituting 9
A terminal 23at23b to which both ends of a coil 220 wound around the bobbin 21 are connected is press-fitted into 1a.

In this case, the terminals 23a and 23b have forked ends so as to hold the peeled portion of the lead wire, which will be described later, so that they do not fall off easily.

Note that the side plate portion 2a of the second frame 2 has 7L/
- When assembling the arm, a groove 24 is drilled to measure the leg portion 18b of the armature 18, and this force supports the armature 18 so as to be able to swing freely while facing the core 20Vc.

Further, in the figure, reference numeral 25 denotes a tension spring for restoring the armature, which is hooked between the cut and raised pieces 25a and 25b provided on the outer surface of the armature 18 and the inner surface 11j of the second frame 2.

Now, according to the present invention, in the electromagnetic counter configured as described above, (as is clear from FIGS. 2 and 3) A recessed portion 27 for housing and holding lead wires 26a-26b for external connection is provided in the recessed portion 2.
A through hole 28a is provided at a position corresponding to the terminal 23a923b in 7.

28b is bored.

And the terminal 23a. 23b is the concave portion 27 through the through holes 28a and 28b when assembling the frame.
protrude inward.

Therefore, according to such a configuration, the lead wire 26
Since the work of connecting the a s 26 b to the terminal 23 at 23 b can be performed from the outside of the frame side plate as the final step after assembly, the work efficiency is significantly improved.

In particular, this concave portion 27 is provided in a protruding manner in a portion of the counter frame where the electromagnet is disposed, which is normally a dead space, and therefore its advantage is great.

Further, the lead wires 26a and 26b are connected to the recessed portion 2 described above.
1, a protrusion 27 meandering inside and protruding inside.
a and a pair of protrusions 29a, 2 forming the exit portion thereof.
It is pulled out to the rear of the counter via the wire 9b, and is configured to prevent wire breakage due to external tensile force and to securely store and hold the wire.

According to such a configuration, the lead wires 26a,
Since the external tensile force applied to the connecting portion of terminal 26b to terminal 23a923bvc can be made as small as possible, soldering of the connecting portion can be omitted and workability can be further improved.

Furthermore, in the configuration described above, the lead wire 26a.

Since the cover 26b is securely housed within the recessed portion 27 and does not protrude outward from the side, the problem of obstructing the substantially housing-shaped cover 30 having a counter display window (not shown) that is placed over the counter frame is avoided. In addition, there is an advantage that the overall configuration of the counter can be simplified.

In addition, in this embodiment, the lead wire 26a mentioned above.

26b is a notch 3 provided at the rear end of the first frame 1.
A notch 32a is guided along the inside of the bottom plate part 2b of the second frame 2 via 1a and 31b, and is provided at a bent part between the side plate part 2a and the bottom plate part 2b of this second frame.
, 32b to the rear of the counter.
This structure holds the lead wires 26a, 26b more firmly and prevents them from being pulled out.

As explained above, according to the electromagnetic counter according to the present invention, one of the opposing side plates constituting the counter frame, which does not affect the custom magnetic path of the electromagnet, is formed as a separate frame from a synthetic resin material, and this A recess is formed on the outer surface of the frame to house the lead wire for external connection of the electromagnet, and a through hole is formed in a part of the recess to communicate with the inside of the counter frame. This not only makes it extremely easy to connect the lead wire to the electromagnet, but also allows the lead wire to be securely stored and held in the recess and to be firmly assembled. It has various excellent effects, such as eliminating the problem of corrosion and improving reliability in terms of strength.

[Brief explanation of the drawing]

The figure shows one embodiment of the electromagnetic counter according to the present invention.
The figure is an exploded perspective view showing the general configuration of the whole, Figure 2 is a perspective view of main parts showing the assembled state, Figure 3 is a 100-sided cross-sectional view of only the counter frame, and Figure 4 At B is a side view and side cross-section. It is a diagram. 1...First frame, 2...Second frame, 3...Number wheel shaft, 4...
...Pinion shaft 1.7...Number wheel, 8.
...Pinion, 19...Electromagnet, 23a
s23b... terminal, 26at26b...
- Lead wire for external connection, 27... recessed part, 28a. 28b...Through hole.

Claims (1)

[Scope of utility model registration request] A U-shaped counter frame, a plurality of numbered wheels mounted on a shaft supported between both side plates of this counter frame, a pinion interposed between these numbered wheels to perform a digit feeding action, and the counter frame. An electromagnetic counter is provided with an electromagnet that is fixedly fixed to the bottom plate of the counter frame and advances the number wheel via a feed member, one side plate of the counter frame is made of a synthetic resin material, and an outer surface of the side plate is provided with an electromagnet. An electromagnetic counter characterized in that a recessed portion is provided to accommodate an external connection lead wire of the electromagnet, and a through hole communicating with the inside of the counter frame is bored in the recessed portion.