JPS634814Y2 - - Google Patents

Description

[Detailed description of the invention] This invention increases the frictional resistance between the adsorbed surface and the polymeric suction cup by fitting a conical leaf spring to the outside of the polymeric vacuum suction cup, and is used for large loads. This article relates to a polymeric vacuum suction cup type fastening device.

Conventional suction cups have a conical leaf spring with a slit fitted onto the outside of the suction cup, and when in use, the outer circumference of the conical leaf spring expands, creating a gap that allows the suction cup to be held down completely. However, the combined force between the suction cup and the spring is small, which causes the suction cup to easily deform, making it unable to withstand large loads.

This invention eliminates those drawbacks,
To explain the structure of this invention, a spring fitting stepped part 2 is provided on the outer upper part of a polymeric conical suction cup 1, and a spring fitting part 2 is formed into a conical shape and a fitting bent part 3 is provided at the upper part. A stock 4 is applied, a triangular cutout 5 is formed on the conical part, and a curved part 6 is formed on the bottom circumference to form a conical spring 7. 3 was fitted to form a polymer vacuum type fastening device with a conical leaf spring.

To explain its action, when a polymeric vacuum suction cup type stopper with a conical leaf spring is applied to a surface to be attracted (such as a glass surface) and pressed, the conical leaf spring 7 deforms into a flat shape and the bottom circumference becomes circular. The circumference becomes larger and the curved part 6 stretches and deforms into a nearly flat state, while the suction cup 1 also deforms into a flat state at the same time, and when the pushing force is removed, the bottom peripheral part of the suction cup 1 and the fitted stepped part 2 are used as fulcrums. Since the spring force of the conical leaf spring 7 is applied,
The bottom periphery of the suction cup 1 is pressed against the curved part 6 (bottom periphery) of 7 to prevent it from being deformed by the load, and the degree of vacuum of the suction cup 1 is increased by the spring force of 7, so that the suction cup The frictional resistance between the surface and 1 increases, and the stopper has the effect of being able to withstand a large load.

As explained above, this invention has the effect of being able to withstand a large load with a simple structure in which the conical leaf spring 7 is fitted on the outside of the polymeric vacuum suction cup 1.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of a polymeric vacuum suction cup type fastening device with a conical leaf spring, Figure 2 is a plan view of the conical leaf spring, Figure 3 is a side view of the conical leaf spring, and Figure 4 is a side view of the conical leaf spring. Figure 5 is a side view of the curved part when not in use, Figure 6 is a side view of the curved part when it is in use, and Figure 7 is a partial cross-sectional view of the curved part when it is in use. be. 1: Polymer vacuum suction cup, 2: Fitting step, 3:
Fitting joint part, 4: slit, 5: triangular cutout part, 6: bottom circumference curved part, 7: conical leaf spring, 8: suction surface.

Claims (1)

[Scope of utility model registration request] Polymer vacuum suction cup type with a conical leaf spring, in which a conical leaf spring 7 having a triangular cutout 5 on the conical part and a curved part 6 on the bottom periphery is fitted onto the outside of the polymer vacuum suction cup 1. Stopping device.