JPH0249000Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a cassette tape loading device that can reduce impact noise when taking out a cassette tape.

Conventional Structures and Their Problems In recent years, various methods have been used in audio equipment such as cassette tape recorders to reduce the impact noise caused when a cassette tape is taken out and to improve the operational feel.

An example of a conventional cassette tape mounting device will be described below.

FIG. 1 is a perspective view of a conventional cassette tape loading device, in which 1 is a cabinet body, 2 is a rotational fulcrum of a cassette holder integrally formed in the cabinet body 1, 3 is a cassette holder, and 4 is a rotary fulcrum of a cassette holder 3. A large gear integrally molded, 5 a small gear meshing with the large gear 4, 6 a cabinet main body 1
This is a bearing for a small gear 5 fixed to a small gear 5, and a space between the spindle of the small gear 5 and the bearing 6 is filled with viscous grease. Reference numeral 7 denotes a door opening spring that presses the cassette holder 3 in the opening direction.

According to the cassette tape mounting device configured as described above, when the cassette holder 3 is opened by the spring pressure of the door opening spring 7, the opening speed is suppressed by the viscous resistance of the grease in the bearing 6, and the impact when the door is opened is suppressed. Sound can be alleviated.

However, according to the above conventional configuration, both the large gear 4 and the small gear 5 are spur gears, and the rotation fulcrum 2
The rotation axis of the pinion 5 and the rotation axis of the pinion 5 are parallel to each other. However, since the cabinet body 1 is often molded with resin, the bearing 6
It is difficult to integrally mold it into the cabinet body 1, and it is inevitably a separate member, which increases the number of parts, requires installation work, and also requires extra space for installation due to its shape. It wasn't a good thing.

Purpose of the invention This invention solves the above-mentioned conventional problems.
It is an object of the present invention to provide an excellent cassette tape mounting device that can reduce the number of parts and eliminate the need for mounting work.

Structure of the invention The present invention is characterized by having large gears and small gears with orthogonal or staggered axes, and the bearings of the small gears are integrally molded into the cabinet body, thereby reducing the number of parts. This makes it possible to eliminate the installation work.

DESCRIPTION OF THE EMBODIMENTS FIG. 2 is a side view of a cassette tape loading device according to an embodiment of the present invention. In Figure 2, 1
1 is a cabinet main body, 12 is a rotation fulcrum of the cassette holder, 13 is a cassette holder, 14 is a large bevel tooth gear integrally formed with the cassette holder 13, 15 is a small bevel gear that meshes with the large gear 14, 1
Reference numeral 6 denotes a bearing for a pinion 15 integrally formed with the cabinet body 11, and a space between the pinion 15 and the bearing 16 is filled with viscous grease.

As described above, according to this embodiment, since bevel gears are used for the pair of gears, the axial direction of the pinion matches the molding direction of the cabinet body, and the bearing can be easily molded integrally with the cabinet body. can do.

FIG. 3 shows a small gear portion of a cassette tape loading device in another embodiment of the present invention. In FIG. 3, 15 is a small gear with a small diameter portion at the base of the shaft, 16 is a bearing integrally molded on the cabinet body 11, 18 is a small hole passing through the bearing 16, and 18 is a small gear passing through the bearing 16. The viscous grease is injected through the small hole 18. The small diameter portion of the bearing 16 can be obtained by insert molding the small gear 15, etc.Although the small hole 18 is different from the mold removal direction of the cabinet body 11, since the depth is shallow, it can be removed by sliding the mold. Can be done.

As described above, according to this embodiment, even if the small gear 5 has a structure in which it is likely to fall off after assembly, this can be prevented.

In the embodiment, the gear pair was a bevel gear, but as shown in FIG.
It may be set to 5. In addition, in the above example, the gear pair was set on orthogonal axes, but the gear pair may be on staggered axes, and in this case, the bearing position can be freely arranged within a certain range. There are advantages.

Effects of the Invention The present invention allows the bearing of the small gear to be molded integrally with the cabinet body by making the large gear and small gear have orthogonal or staggered axes, which reduces the number of parts and the number of work steps. Furthermore, by insert-molding the pinion into the bearing, it is possible to create a shape that prevents the pinion from falling off even if the mounting structure is such that it is easy to fall off.Also, the overall shape of the device can be made smaller, and the arrangement of the bearing can be improved. It is also possible to obtain the effect of increasing the degree of freedom, which is extremely advantageous in practice.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional cassette tape mounting device, FIG. 2 is a side view of a main part of an embodiment of the cassette tape mounting device of the present invention, and FIG. 3 is a sectional side view of a main part of another embodiment. FIG. 4 is a perspective view of a main part of still another embodiment. 11... Cabinet body, 12... Rotating fulcrum, 13... Cassette holder, 14... Large gear, 15... Small gear, 16... Bearing, 18... Small hole.

Claims (1)

[Scope of utility model registration request] A cassette holder rotatably supported on a rotation fulcrum provided in the cabinet body, a large gear formed integrally with the cassette holder, and a gear perpendicular to the rotation axis of the cassette holder to mesh with the large gear. Alternatively, it is equipped with a pinion having a rotating shaft serving as a staggered shaft, and a bearing formed by insert-molding the rotational shaft of the pinion and integrally forming the cabinet, and the root of the pinion has a diameter larger than the shaft inside the bearing. A cassette tape mounting device characterized in that a small portion is provided and a small hole is provided on the circumferential surface of the bearing for injecting grease between the bearing and the shaft.