JPH0229999Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] This invention relates to a scale toy in which when an object is placed on an upper plate, a pointer rotates due to the weight to display the weight.

[Problems to be Solved] Conventional top-pan scales have a complicated structure, so it is difficult to apply them to toys.

Therefore, the purpose of this invention is to provide a scale toy that has a simple and compact structure and moves in a manner similar to the real thing, allowing young children to have a simulated experience of measuring the weight of objects.

[Embodiment of this invention] Next, an embodiment of this invention will be described based on the drawings.

A box-shaped mounting body 2 is fixed to the upper surface of the bottom 1a of the housing 1, and a support 4 extending downward from the lower surface of the upper plate 3 is connected to a hole 5 provided on the upper surface of the upper portion 1b of the housing. It passes through a hole 6 provided in the upper wall of the main body 2 and is provided in the main body so as to be movable up and down. This support 4 has a longitudinally long rack 7 formed in the portion inserted into the main body 2.

Inside the main body 2, a shaft 9 is rotatably suspended horizontally between the back wall of the main body and a plate 8 fixed inside the front part of the main body, and a pinion 10 is fixed on the shaft 9.
is meshed with the rack 7.

A bevel gear 1 fixed to the tip of the pinion shaft 9
1 is meshed with a spur gear 13 fixed to the inner end of a shaft 12 rotatably mounted on the front wall of the main body 2. Reference numerals 14a and 14b are holding members fixed to the shaft 12 in order to rotatably support the shaft 12 on the front wall of the main body.

The shaft 12 projects outward from the front wall of the housing 1, and has a pointer 15 fixed to its tip.

Reference numeral 16 denotes a spring that constantly urges the support column 4 upward to hold or return it to a fixed position. It is attached by locking both ends of the spring between the stop pieces 18. However, a spring with such a function and purpose is, for example, a support column 4.
It is possible to attach a compression spring between the pinion shaft 9 and the bottom of the main body, a coil spring between the pinion shaft 9 and the main body, etc. in any desired manner.

If there is nothing on the upper plate 3, the upper plate 3 has an upper limit determined by the length of the spring 16 in its natural state, or by a stopper (not shown) protruding from the support that locks onto the main body. located at
At this time, the pointer 15 points to the starting point 0, as shown in FIG.

With the above configuration, when an object is placed on the upper tray 3,
Due to its weight, the support column 4 descends against the spring 16, causing the rack 7 to rotate the pinion 10, so that the pointer 15, which is linked to this pinion shaft via the gears 11, 13 and the shaft 12, rotates. It is rotated and points to the position corresponding to its weight.

As a means for defining the rotation range of the pointer 15 so that the pointer 15 does not rotate beyond the starting point, the holding member 14a is formed into a disk shape, and a protrusion 19 protrudes from the circumferential surface of the disk. A stopper 20 is provided on the front wall of the main body, and the stopper 20 projects on the circumference along which the projection moves.

When the placed object is removed from the upper tray, the support 4 is raised by the spring 16 and returned to its normal position, and the pointer 15 returns to its starting point.

The above-mentioned embodiment is merely an example, and various other types of linkage structures between the pinion 10 and the pointer 15 can be considered. That is, instead of the transmission means using gears, a flexible shaft may be directly connected to the pinion shaft, and the pointer 15 may be fixed to the shaft. Further, the means for regulating the rotation range of the pointer can also be constructed by defining the length of the vertical hole forming the rack 7 of the support 4.

In the figure, 21 is a transparent cover for protecting the pointer provided on the front.

[Effects of this invention] As described above, according to this invention, a pinion is engaged with a rack extending below the upper plate, and a pointer is linked to the pinion shaft, thereby regulating the rotation range of the pointer. The scale is very simple in construction because it is equipped with a spring to return the pointer to its normal position.Moreover, it has the same function as a real scale, so it is easy for young children to play with it. Students can develop a sense of the weight of objects and learn from them.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and FIG. 1 is a perspective view with the upper plate removed, and FIG.
The figure is a partially cutaway side view, and FIG. 3 is a front view. 1... Housing, 2... Main body, 3... Top plate, 4...
Pillar, 7...Rack, 9...Pinion shaft, 10...
...pinion, 11,13...gear, 12...shaft,
15...Pointer, 16...Spring, 17, 18...Example of rotation range regulating means.

Claims (1)

[Claims for Utility Model Registration] (a) A rack extending below the upper plate is provided on the main body so as to be movable up and down, (b) A pinion rotatably supported on the main body is engaged with the rack, (h) A scale toy, characterized in that:) a pointer is linked to the pinion shaft; (d) means is provided for regulating the rotation range of the pointer; and (e) a spring is provided for returning the pointer to a normal position.