JPS6115557Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides the following features:
The lower ends of the circuit boards 3a and 3b are respectively fitted into the elastic fitting parts 2 and 2 which apply an upward elastic force to the mated objects, and the circuit boards 3a and 3b are erected on the base 1. Fitting portions 6a and 6b are provided at the tips of mounting frames 5a and 5b horizontally protruding from both sides of the digital switch body 4 for setting, respectively, and fitting receiving portions 7a are provided at the upper ends of the circuit boards 3a and 3b, respectively. , 7b, the digital switch body 4 is disposed between the upper ends of the circuit boards 3a and 3b, and the length of the lead terminal 9 that can be led out from the digital switch body 4 to the circuit board 3a side can be attached to the circuit board 3. The present invention relates to a timer device in which the distance l is set at a distance l, and the dimension _L2 of the tips of both mounting frames 5, 5 is made close to the distance between the inner wall surfaces on both sides of the case 8 mounted on the base 1.

This type of conventional digital timer device is
The lower ends of the circuit boards 3, 3 on which the timer circuits are installed,
The circuit boards 3, 3 are fixed on the top surface of the base 1 with mounting members such as tapping screws 14, and the circuit boards 3 are erected on the base 1, while the digital switch body 4 is used to set the hours, minutes, and seconds individually. Mounting frame 5 provided around the upper side
After that, screws 14a, 14a are attached to the upper ends of the circuit boards 3, 3 using the tap holes 11, 11 provided on both sides of the plate 10.
It was fixed at. This not only requires a large number of assembly steps, but also requires mounting members such as screws and tapping screws, which has the disadvantage of increasing manufacturing costs.

This invention was proposed in view of the above-mentioned drawbacks.
The purpose is to provide a timer device that can be assembled without using mounting members such as screws, and in which each member can be fixed to a base without rattling.

The present invention will be explained below with reference to examples. FIG. 2 shows an exploded perspective view of one embodiment. The base 1 has a pair of parallel ribs 12, 12 protruding from both sides of the upper surface, and a rubber-like material is provided in the groove between the pair of parallel ribs 12, 12. An elastic member 13 is fitted, and the parallel ribs 12, 12 and the elastic member 13 constitute an elastic fitting portion 2 that applies an upward elastic force to the fitted object. These elastic fitting parts 2, 2 fit the lower ends of circuit boards 3a, 3b made of printed circuit boards on which timer circuits are wired from above, so that the circuit boards 3a, 3b are erected on both sides of the upper surface of the base 1. . One of the circuit boards 3a and 3b has protrusions erected at a predetermined interval on the upper end, and the other has cutout grooves formed at a predetermined interval on the upper end, and a fitting receiving portion 7 is provided at the upper end of each.
a and 7b are configured. The digital switch body 4 for timer setting has mounting frames 5a, 5 on both sides of the upper part.
b, respectively, and the mounting frame 5a on one side is provided with a fitted portion 6a consisting of a hole corresponding to the protrusion fitting receiving portion 7a provided on the circuit board 3a,
At the tip of the mounting frame 5b on the other side, there is a fitted part 6b consisting of a protrusion corresponding to the notch groove provided in the circuit board 3b.
are provided, and each mating part 6 is connected at the time of assembly.
a, 6b to the fitting receiving portion 7 at the upper end of the circuit board 3a, 3b.
a, 7b, respectively, and the digital switch body 4 is disposed between the upper ends of the circuit boards 3a, 3b. A circuit board 3 is mounted on one side of the lower part of the digital switch body 4.
A group of 9 lead terminals to be connected to the circuit board 3b are drawn out, and the length l of these lead terminals 9 is set to a length that can be attached to the circuit board 3b. By inserting and soldering the digital switch body 4 into the timer circuit, the digital switch body 4 and the timer circuit can be electrically connected. In the figure, 17 is a lead wire, 18
is a connecting pin.

Therefore, as described above, the circuit boards 3a, 3b,
After placing the digital switch body 4 on the base 1, the synthetic resin case 8 is fitted onto the top of the base 1 to complete the desired timer device. Here, the distance L ₂ between the ends of the mounting frames 5a and 5b is made close to the distance between the inner walls on both sides of the case 8, so that the strength is reinforced even when an external force is applied in the diagonal direction shown by the arrow X in Fig. 3. do. Further, the circuit boards 3a and 3b are urged upward by the elastic force of the elastic fitting portion 2, and the upper surface of the digital switch body 4 comes into elastic contact with the lower surface of the case 8.

FIG. 4 shows a digital switch body 4 used in another embodiment of the present invention. In this embodiment, a support 15 is provided protruding from the side of the digital switch body 4 below the lead terminal 9 of the digital switch body 4. When soldering the circuit board 3b and the lead terminals 99, the digital switch body 4 is supported to facilitate soldering.

Figure 5 shows a base 1 used in another embodiment of the present invention.
In this embodiment, the base 1 is made of a rubber sheet, and vertical holes are formed in the upper surface of the base 1 made of the rubber sheet, and the elastic fitting parts 2, 2, . . . are formed in the vertical holes. Of course, the lower ends of the circuit boards 3a, 3b are provided with protrusions 16, 16 which fit into the elastic fitting parts 2, 2.

In the present invention, the circuit board is erected by fitting the lower end of each circuit board into the elastic fitting parts provided on both sides of the top surface of the base, which apply upward elastic force to the mated object. Because of this, it is installed between the upper ends of the circuit board and can push the digital switch body upward, allowing the digital switch body to stick to the ceiling of the case.Moreover, it is installed horizontally on both sides of the digital switch body. The digital switch body is disposed between the upper ends of the circuit boards by fitting the mating parts provided at the ends of the mounting frames into the respective fitting receptacles provided at the upper ends of the circuit boards. Since the digital switch body can be assembled without using screws or other fittings, it is easy to assemble and requires fewer assembly steps.Furthermore, the number of parts is reduced, so the manufacturing cost is lower, and it is more cost-effective than the digital switch body. The length of the lead terminal that can be led out to the circuit board side is set to a distance that allows it to be attached to the circuit board, so there is no wobbling between the digital switch body and the circuit board.
This can be prevented by the function of the elastic fitting part mentioned above, and furthermore, since the dimension between the tips of both mounting frames is close to the distance between the inner walls on both sides of the case installed on the base, It has the advantage of being strong against diagonal external forces by reinforcing the strength at the end of the mounting frame and being strong against diagonal external forces.Furthermore, since the mounting frame is fixed by fitting as described above, the digital switch Even when a plurality of digital switch bodies are used, there is an advantage that there is no need to connect the digital switch bodies with each other using screws or the like.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a conventional example, Fig. 2 is an exploded perspective view of one embodiment of the present invention with the case removed, Fig. 3 is a sectional view of the same, and Fig. 4 is a digital switch of another embodiment of the present invention. FIG. 5 is an enlarged exploded perspective view of another embodiment of the present invention, with the base portion partially omitted and cut away, in which 1 is the base, 2 is an elastic fitting part, and 3 is an exploded perspective view.
a and 3b are circuit boards, 4 is a digital switch body, 5a and 5b are mounting frames, 6a and 6b are mated parts, 7a and 7b are mating receiving parts, 8 is a case, 9 is a lead terminal, and _L2 is The distance between the ends of the mounting frame, l is the lead terminal length.

Claims (1)

[Scope of utility model registration request] The lower ends of the circuit boards are fitted to the elastic fitting parts provided on both sides of the top surface of the base, which apply upward elastic force to the mated objects, and the circuit boards are set upright on the base, and the timer is set up. The mating parts provided at the ends of the mounting frames horizontally protruding on both sides of the digital switch body for setting are fitted into the mating receptacles provided at the upper ends of the circuit boards, and the parts are connected between the upper ends of the circuit boards. Arrange the digital switch body, set the length of the lead terminal that can be led out from the digital switch body to the circuit board side to a distance that can be attached to the circuit board, and set the dimension between the tips of both mounting frames to the base. A timer device located close to the distance between the inner walls on both sides of the case.