JPH025199Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

TECHNICAL FIELD The present invention relates to a component mounting platform device for relatively small electrical and mechanical components.

[Conventional technology]

The base plates on which many small parts, including electrical parts, are mounted are often made of molded synthetic resin, and the boss-shaped parts protruding from the base plate at intervals are equipped with screws for fixing the parts. The nut to be screwed into is immovably buried. In order to manufacture such a base plate, there are two methods: burying nuts in the boss-like part at the same time as forming the base plate, or forcing the nut into the boss-like part on the base plate after forming the base plate to make it immovable. In the former method, a special nut with knurling is carved into the outer circumferential surface, and in the latter method, an expansion plate is attached to the nut, and after driving the nut, the expansion plate is expanded and inserted into the boss hole. A special lockable nut is used to hold the nuts in place.

[Problem that the invention attempts to solve]

In the method of embedding and fixing nuts during base plate forming,
For example, when there are many parts to be mounted on the base plate, such as the drive mechanism of an automatic mahjong table, it is necessary to bury a large number of nuts, usually 200 to 300 pieces, on the base plate. Pre-inserting the nuts into the mold requires a considerable amount of time, which greatly reduces the operating rate of the molding machine, and it is also easy to make mistakes such as forgetting to insert some nuts, resulting in product loss. There is a problem with the relatively high occurrence of On the other hand, with the method of driving the nuts after forming the base plate, it is difficult to completely maintain the biting strength of the nuts.
There is a problem in that the fixing state is unstable and parts cannot be securely screwed together. In addition, in the conventional platform mentioned above, parts are directly supported and fixed on the boss-like part, so there is a feeling of insecurity in the boss-like part itself, and when the number of protruding boss-like parts increases, the total When it is difficult to mold all boss-like parts to the same height, and there are often differences in height on the mounting surface of the parts, making it impossible to mount the parts neatly and stably on the same plane. There is.

[Means to solve the problem]

The present invention solves the above-mentioned problems, and its purpose is to include a synthetic resin substrate and a metal upper plate fixed on the substrate, which is fitted into a supporting part protruding from the substrate. The attached nuts are fixed with fixing screws inserted from the bottom side of the board, while the upper plate and the parts supported on the upper plate are simultaneously fixed on the support part, so that the parts are attached only when the upper plate is fixed. Another purpose is to provide a base plate device for mounting parts that is improved so as to be able to be firmly mounted through the base plate.Another purpose is to improve the overall strength and to be able to stably and orderly mount parts on the same plane. An object of the present invention is to provide a base plate device for mounting parts. Therefore, the above-mentioned object of the present invention is to provide a large number of supporting parts protruding from a synthetic resin substrate at intervals, and to provide fitting parts having a polygonal cross-section on the supporting parts. A square nut having a shape corresponding to the fitting portion is fitted into each of the fitting portions, and this square nut is fixed to the fitting portion by a fixing screw inserted from the bottom side of the substrate. A metal upper plate capable of covering these support parts at the same time is supported on all the support parts, and this upper plate is screwed into the above-mentioned square nut with the mounting screw of the part to be attached to the upper plate. This is achieved by a base unit for mounting parts configured to be fixed on a support.

【Example】

An embodiment of the present invention will be described below with reference to the accompanying drawings. A substrate 1 made of synthetic resin is a molded product, and a large number of supporting parts 2 are protruded at intervals on the plate surface. At the same time, auxiliary support parts 3 are protruded from the four corners to assist the fixing state of the upper plate, which will be described later, as necessary, and all the support parts 2 and auxiliary support parts 3 are at the same height. be. Each support part 2 is provided with a fitting part 2a having a polygonal cross-sectional shape such as a square or hexagon, and a square nut is attached to the fitting part 2a flush with the top surface of the support part 2. 4 (this uses a commercially available square or hexagonal nut), the fixing screw 5 inserted from the bottom side of the board 1 is screwed into this square nut 4, and the square nut 4 is inserted into the fitting part 2a. Fixed to. The upper plate 6 is made of metal, and is provided with a large number of screw insertion holes 7 corresponding to the fitting positions of the square nuts 4 described above. A top plate 6 that can cover these supporting parts 2 at the same time is supported, a part 13 is placed on the top plate 6, and a mounting screw 8 inserted into this part 13 is screwed into the square nut 4 through the screw insertion hole 7. By doing so, the upper plate 6 is fixed onto the support portion 2, thereby configuring a base plate device for mounting components. In the above configuration, the upper plate 6 has the mounting screws 8 used when attaching the parts 13 to the upper plate 6 connected to the square nuts 4.
The upper plate 6 is screwed into the support part 2 and fixed on the support part 2, but if necessary, the upper plate 6 is screwed into the auxiliary support part 3 mentioned above and the Tatsupin screws 9 are screwed in to preliminarily fix the upper plate 6 onto the substrate 1. The upper plate 6 may be finally fixed as described above. In addition, in order to preliminarily fix the upper plate 6 on the auxiliary support part 3, as shown in FIG. The upper plate 6 may be mounted on the auxiliary support portion 3 in a caulked state. In the figure, reference numeral 11 indicates a hole for inserting the fixing screw 5 drilled in the board 1, and reference numeral 12 indicates a hole for inserting the pin screw 9 or the protrusion 3a drilled at the four corners of the upper plate 6.

[Effect of the idea]

The present invention is as described above, and unlike conventional platform devices, there is no need to use special nuts.
All you have to do is insert a commercially available regular square nut into each support part after molding the board, and its fixed state is determined by the fixing screw screwed into the bottom of the board, completely eliminating the worry of it falling off. It can be resolved. Therefore, the upper plate is fixed on the support part by screwing the mounting screws used when attaching parts onto the upper plate and the square nuts fixed to the support part in advance, so that the upper plate is fixed on the support part. Once the condition is determined, all parts can be firmly and orderly fixed along the same plane, and parts can also be attached to the bottom of the board using fixing screws for fixing square nuts. It has certain advantages in use, and in addition, the lack of strength of the synthetic resin board is compensated by the metal top plate, and the durability of the entire platform device can be significantly improved, so its practical value is extremely large. be.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a perspective view, and Fig. 2 is Fig. 1A with parts attached.
3 is a sectional view showing another example of a portion for preliminarily fixing the upper plate. In the figure, 1 is a substrate, 2 is a support part, 2a is a fitting part,
4 is a square nut, 5 is a fixing screw, 6 is an upper plate, 8 is a mounting screw, and 13 is a component.

Claims (1)

[Scope of utility model registration request] A large number of supporting parts are provided protrudingly at intervals on a synthetic resin substrate, and fitting parts having a polygonal cross section are provided on these supporting parts, and each of the fitting parts corresponds to the fitting part. At the same time as fitting a square nut with a shape of
This square nut is fixed to the fitting part by a fixing screw inserted from the bottom side of the board, and on the other hand, a metal upper plate is provided on all the supporting parts at the same time to cover these supporting parts at the same time. 1. A base plate device for mounting parts, characterized in that the upper plate is fixed on a supporting part by screwing together the mounting screws of the parts to be mounted on the upper plate and the square nuts.