JPS5817139Y2 - Composite bell spring device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a composite bell spring device that combines a plurality of bell springs.

Although plate springs have a large load capacity and are small in size, the amount of deflection per piece is small, so they are often used in combination.

Such combinations are divided into series combinations, parallel combinations, and combinations that combine parallel and series combinations, but it takes a lot of effort to combine the bellows individually when assembling equipment as in the past, and it is difficult to combine them. It is easy to make mistakes in the process, and the desired composite spring characteristics may not be obtained.

Furthermore, if individual bellows springs are simply polymerized, special care is required to restore them to their original state when they are removed for equipment repair or the like.

Furthermore, when handling different types of bellows springs with similar shapes and dimensions at the same time, it is necessary to separate them so that they are not confused with each other.

The present invention was developed based on the above circumstances, and its purpose is to create a highly reliable composite plate spring that can be easily and easily installed and removed from various types of equipment, etc., without causing mistakes in combination. The goal is to provide equipment.

Hereinafter, the present invention will be explained with reference to the illustrated embodiments.

In the first embodiment shown in FIG. 1, a plurality of axially overlapping springs (four in the figure) are combined in series.

A cylindrical support member 3 is loosely inserted into the through hole 2 of the plate spring 1.

The support member 3 includes a threaded portion 4 formed at one end, and a ring-shaped first spring seat 5 is screwed into the threaded portion 4.

A ring-shaped second spring seat 6 is loosely fitted to the other end of the support member 3 so as to be able to freely reciprocate in the axial direction.

The support member 3 is integrally provided with a locking portion 7 provided at the other end so as to prevent the second spring seat 6 from detaching.

The locking portions 7 may be provided over the entire circumference of the support member 3 or may be provided at intervals in the circumferential direction.

When assembling the first embodiment, the second spring seat 6 and the bellows 1 preset according to the desired spring characteristics are fitted in order from one end of the support member 3. After that, the first spring seat 5 may be screwed on, and if necessary, the tip of the threaded portion 4 may be caulked in an appropriate manner.

Moreover, when this is used, it may be arranged so that an axial load is applied to the plate springs 1 through the first and second spring seats 5 and 6.

In the first embodiment, the spring 1...
are combined to exhibit the desired spring characteristics, so they can be installed or removed from equipment as is.
Compared to installing and removing the springs 1 individually, the man-hours can be greatly reduced, and the desired spring characteristics can be easily maintained since there is no possibility of mistakes in combination. , excellent reliability.

Moreover, since the bellows springs 1 are externally covered by the support member 3, if an abnormality such as a breakage accident occurs, they can be easily identified from the outside and maintenance is easy.

In the second embodiment shown in FIG. 2, the first spring seat 5 is formed integrally with the support member 3, and the locking portion 8 is detachably attached to the support member 3. The configuration is substantially the same as that of the first embodiment.

The locking portion 8 is, for example, a snap ring or the like,
It is fitted into a circumferential groove 9 provided at the other end of the support member 3 .

In the third embodiment shown in FIG. 3, a plurality of sets of two parallel plate springs 1 are combined in series.

Further, the second spring seat 6 includes a cylindrical portion extending in the axial direction beyond the other end of the support member 3.

The rest of the structure is substantially the same as that of the first embodiment.

In the fourth embodiment shown in FIG. 4, the support member 10 has an axial sliding portion 11 and is formed to be expandable and contractible in the circumferential direction, and one end is substantially the same as the other end. A flange-shaped locking portion 12 is integrally provided.

Moreover, the first spring seat 13 is prevented from being disengaged from the support member 10 by engaging with the locking portion 12 .

The rest of the structure is substantially the same as that of the third embodiment.

It goes without saying that each of the second to fourth embodiments can achieve the same effects as the first embodiment.

Note that the present invention is not limited to the above-mentioned embodiments; for example, the support member 3 may be a solid rod-shaped body, etc., if necessary, and regardless of whether it is hollow or not, the support member 3 may be a solid rod-shaped body or the like. The cross-sectional shape may be a polygonal shape inscribed in the through hole 2, a spline shape, or the like.

Further, the locking portion 7 may be attached to the support member by screwing or other appropriate means.

As described above, the present invention includes a plurality of bellows springs stacked together in the axial direction, and a support that is loosely inserted into the through holes of these springs and has a first spring seat provided at one end to prevent the bellows springs from coming off. a member, a second spring seat loosely fitted to the other end of the support member, and a locking portion provided at the other end of the support member to prevent detachment of the second spring seat. ing.

Therefore, compared to the case where a plurality of bell springs are individually attached to the same part of various devices, the installation work is extremely simple and easy, and the required man-hours can be significantly reduced.

In addition, since each bell spring is pre-combined to match the desired spring characteristics, there is no chance of incorrect combinations during installation, so the desired performance can always be achieved, resulting in excellent reliability. ing.

Similarly, when repairing equipment, etc., the bell spring is not only easy to remove, but also easy to reinstall, and there is no change in performance.

In addition, since each of the bellows springs is disposed on the outer periphery of the support member, abnormalities can be easily discovered and maintenance is easy, which provides excellent practical effects.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing one embodiment of the present invention, Figures 2 and 3.
4 and 4 are cross-sectional views showing different embodiments of the present invention, respectively. 1...Farewell, 2...Through hole, 3,1
0... Support member, 5.13... First spring seat, 6... Second spring seat, 7, 8...
Locking part.

Claims (1)

[Scope of utility model registration request] A support member that is loosely inserted into the through holes of these bellows springs and is provided with a first spring seat at one end that prevents the bellows springs from coming off, and other parts of the support member. A composite plate spring device comprising: a second spring seat loosely fitted to an end portion; and a locking portion provided at the other end of the support member to prevent detachment of the second spring seat.