JPH0217376Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an illuminated push button switch.

In conventional switches of this type, the lead wires are connected to the terminals provided on the side of the body by soldering, so the lead wires are located in the radial direction of the body, making it difficult to tighten when installing the body to a panel. This has the disadvantage of causing problems in attaching and detaching the ring and requiring soldering work, which reduces work efficiency and increases costs. Furthermore, since the contact portion of the pushbutton switch and each terminal are constructed separately, each terminal must be wired with a lead wire, which is disadvantageous in that it requires a lot of work.

In order to eliminate such conventional drawbacks, the present invention eliminates the need for soldering work, and provides a latching member that latches the lamp holder fittings that form the lamp circuit and switch circuit to the conductor part and to the terminal fittings. It is characterized by the fact that it can be easily fixed by forming a button, and its structure is a push button switch in which the internal switch is switched by pressing a movable part that has an illuminated part that also serves as a push button on the front. A receptacle is provided at the rear of each of the first and second terminal fittings, which are arranged in pairs in the direction of the moving axis of the movable part and have first and second fixed contacts. A pair of elastic latching pieces are provided on both sides of the movable part, each having a latching collar with a gap therebetween, each of which engages with a protrusion provided on the inner surface of the pore of the rear body. A holder with a known alternating mechanism consisting of a pair of heart-shaped cams and a locking pin is provided with first and second movable contacts that alternately connect with the first and second fixed contacts, and each of the tips is used to hold a lamp. The rear ends of a pair of elongated lamp holder fittings having holding portions and latched to the front body protrude rearward from the insertion holes of the rear body, and the receptacles of the lamp holder fittings protrude outside the rear body. The front body and the rear body are fixed together by twisting them respectively, and the pair of lamp holder metal fittings and the first and second terminal fittings are connected through a switch mechanism consisting of first and second fixed contacts and first and second movable contacts. It is characterized by forming a circuit.

An example of the present invention will be described based on the drawings.
Inside the mounting part 1 having a rectangular outer shape, a name plate 2 is housed on the front surface, and a movable body 40 having a push button 3 which also serves as a transparent lid body is housed on the front surface thereof so as to be movable back and forth. A cylindrical front body 4 is integrally formed behind the attachment portion 1, and a thread 5 is provided on the outer periphery of the front body 4.

6 is a tightening ring to be screwed into the thread 5;
The panel 7 is held between the mounting portion 1 and the rear surface of the mounting portion 1.
Reference numeral 8 designates a pair of lamp holder metal fittings, each of which has a bent part 10 that is continuous with the holding part 9 for holding the lamp provided on the inside of the tip and bent outward, and further continues from the rear part and has a bent part 10 on both sides. A first receptacle 12 for a wide front terminal is formed via the stepped portion 11.

Reference numeral 15 denotes a pair of first terminal metal fittings, which are integral with the metal fittings 15 and have elastic first parts on both sides of a first narrow portion 17 formed at the front part of a second receptacle 16 for a fastening terminal provided at the rear end. A first locking flange 19 is formed on the outside of each of the locking pieces 18.
A first fixed contact 20 is provided by bending the front end of the metal fitting 15 at right angles to one side.

A second terminal fitting 21 is longer than the first terminal fitting 15, and a second narrow portion 23 is provided on the upper part of a third receptacle 22 for a fastening terminal provided at the rear end.
On both sides of the narrow width part 23, a second locking piece 24 which is integral with the metal fitting 21 and has elasticity is formed, and on the outside of each locking piece 24, a second locking collar 25 is formed, Furthermore, the upper end of the metal fitting 21 is bent at a right angle to one side to form a second fixed contact 26.

Reference numeral 30 denotes a rear body attached to the rear part of the front body 4. On the rear surface, parallel rising walls 31 are provided on the same straight line, and the coexisting upper walls 31 are partitioned by partition walls 32 to form respective recessed chambers 34. A plurality of pores 35a and 35b provided in each recessed chamber 34 are provided with protrusions 35 on the inner walls at both ends, respectively, with which the terminal fittings 15 and 21 and the locking flanges 19 and 25 engage. .

The third receptacle 22 is made to protrude outside and the first terminal fitting 21 is inserted into the pore 35a located on the outside of each pore, and the pore 35a located on the inside
Similarly, the second receptacle 16 is made to protrude outside and the first terminal fitting 15 is inserted into the inside of the terminal 5b.
Each terminal fitting 15, 21 is fixed by engaging its locking collar 19, 25 with the protrusion 19.

A pair of lamp holder fittings 8 holding lamps (not shown) are housed in the front body 4, and insertion holes 4a provided at the rear of the front body 4 and the rear body 30 are inserted in a direction perpendicular to the row of pores. The first receptacle 12 of the metal fitting 8 is projected outward from the positioned insertion hole 36, and the receptacle 12 is twisted in the circumferential direction to fix the front body 4 and the rear body 30.

The first receptacle 12 can be used as it is to clamp and hold a fastener terminal, or can be used as a soldered terminal, and the same applies to the other receptacles 16 and 22. Note that the recessed chamber 37 from which the first receptacle 12 protrudes can be formed using a small-diameter jig.
Although the inner surface is formed into a circular shape so that it can be rotated while holding it, it does not necessarily have to be circular.

A heart-shaped pin 42 is housed in a small hole 41 provided in a direction perpendicular to the movable direction of the movable body at the front part of the movable part 40 to which the push button 3 is attached at the rear, and the tip of this pin is locked. A cam 43 is housed in the front body 4, and the pin 42 and the heart-shaped cam 43 constitute a known alternate mechanism 44.

A holder 45 is attached to the rear part of the movable part 40, and a hole 46 is provided in the holder in the front-rear direction.
A pair of openings 47 and 48 are formed at the front and rear of the opening, respectively. The first fixed contact 2 is inserted into the openings 47 and 48 by springs 49, which are applied in the front-rear direction.
0 or the second fixed contact 26 and the first,
Two fixed contacts 50 and 51 are accommodated.

A pair of springs 52 are provided between both sides of the holder 45 and the rear body 30, and each fixed contact 20,
The contact surface 26 may be formed of a phosphor bronze and silver cladding material to provide good electrical conductivity. Furthermore, the first terminal fitting 15 is bent outward at right angles to form the first fixed contact 20.
, and a second fixed contact 26 is provided by bending each of the second terminal fittings 21 at right angles to the center direction.

Incidentally, around each receptacle 12, 16, 22 protruding outward from the front and rear of the rear body, wall surfaces of an upright wall 31, a partition wall 32, and a recessed chamber 37 are provided to provide a sufficient creepage distance. be.

Next, to explain the operation of this embodiment, when the push button 3 is pushed backward, the movable part 40 integrated with the push button moves back, and when the holder 45 is moved back against the spring 52 via the alternate mechanism 44, , an opening 47 provided in the holder 45,
A pair of first and second movable contacts 50 and 51 housed in 48 and urged against each other by a spring 49 move back, and one of the first movable contacts 50 and the first fixed contact 20 are turned on.

In this case, when you release your hand from the pushbutton 3, the movable part 4
0 rises due to the elastic force of the spring 52,
Heart-shaped cam 43 of known alternate mechanism 44
is activated to prevent the holder 45 from moving forward, and the first
The fixed contact 20 is turned on, and the second fixed contact 26 is turned on.
It becomes OFF.

When the push button 3 is moved back again, the heart-shaped cam 43 of the Altite mechanism 44 acts, and the first fixed contact 26 is now turned OFF as shown in FIG.
In addition, since the hooking pieces provided with gaps on both sides of the narrow width portions provided on both sides of the base of the receptacle have elasticity, they fit into the protrusions 35b provided on the inner surfaces of the small holes 35a and 35b of the rear body. When combined, it can be firmly fixed. Furthermore, by twisting the receptacle provided at the rear end of the long lamp holder fitting 8 at a position protruding from the rear surface of the rear body by about 30 degrees in the circumferential direction, the front body 4 and the rear body 30 can be connected with one touch. It can be fixed.

The present invention has the following effects.

Since the electric circuit is formed using terminal fittings and lamp holder fittings without using wiring, there is no need to worry about wire breakage, and since there is no lead wire protruding in the radial direction, it is easy to attach and detach the tightening ring, making it easy to remove the device after wiring. Can be easily mounted on a panel.

The first and second terminal fittings can be installed simply by press-fitting them into the small holes in the rear body, making it easy to install the first and second terminal fittings.Since each terminal metal fitting is wrapped around the back of the rear body, it is easy to install the first and second terminal fittings. Connections are easy and can be used with both fastened terminals and soldered terminals.

The first and second fixed contacts provided on both terminal fittings and the first and second movable contacts provided on the movable part move back and forth to facilitate switching.

The front body has a movable part with a push button on the front that can be moved back and forth, and the rear body has the first and second terminal fittings attached, without using long bolts and nuts as in the past. Since the receptacles of the pair of lamp holder metal fittings are used and can be fixed by simply twisting the ends thereof, the lamp holder has the advantage of being smaller and lighter.

Since the number of parts is significantly reduced and wiring work is not required, there is an advantage that the circuit can be installed at the same time as the assembly of the device is completed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is an overall side view, Fig. 2 is a front view of the same, Fig. 3 is a rear view of the same, and Fig. 4 is a part of a panel with mounting holes. 5 is a cross-sectional view taken along the line A-A of FIG. 1, FIG. 6 is a cross-sectional view taken along the line B-B of FIG.
The figure is a bottom view of the first terminal fitting, and Figure 8 is a front view of the same.
Fig. 9 is a right side view of the same, Fig. 10 is a bottom view of the second terminal fitting, Fig. 11 is a front view of the same, Fig. 12 is a right side view of the same, Fig. 13 is a plan view of the lamp holder fitting;
Figure 14 is a left side view of the same, Figure 15 is Figure 13 C-
A sectional view taken along line C, and FIG. 16 is a right side view of the same. 4...Front body, 8...Lamp holder metal fitting, 9
...Holding part, 12,16,22...Receptacle, 15,21...Terminal fitting, 17,23...Narrow width part, 18,24...Latching piece, 19,25...
Locking collar, 30...Rear body, 35...Protrusion, 35
a, 35b...pore, 36...insertion hole, 44...
Alternate mechanism.

Claims (1)

[Scope of utility model registration request] In a push button switch in which an internal switch is switched by pressing a movable part that has an illumination part that also serves as a push button on the front surface, a first switch is provided facing each other in a pair in the direction of the axis of movement of the movable part. , 2 receptacles are provided at the rear of the first and second terminal fittings each having a fixed contact, and locking collars are provided on both sides of the narrow portion formed on the receptacle to engage with protrusions provided on the inner surface of the pore of the rear body. A holder is provided with a pair of elastic hooking pieces formed with a gap between them, and has a known alternate mechanism consisting of a pair of heart-shaped cams provided on the movable part and a locking pin, A pair of elongated lamp holders provided with first and second movable contacts which are alternately connected to the first and second fixed contacts, and each having a holder for holding the lamp at the tip and latched to the front body. The rear ends of the metal fittings are made to protrude rearward from the insertion holes of the rear body, and the receptacles of the lamp holder metal fittings that protrude outside the rear body are twisted respectively to fix the front body and the rear body together, thereby forming a pair of lamp holder metal fittings. An illuminated push button switch in which a circuit is formed between first and second terminal fittings via a switch mechanism consisting of first and second fixed contacts and first and second movable contacts.