JPS5942915Y2 - Umbrella shaft rotation mechanism - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an umbrella shaft rotation mechanism.

In general, when riding a vehicle or entering a building after using an umbrella in the rain, do not rotate the umbrella, violently open and close it, or tear the umbrella to shake off the rainwater that has adhered to the umbrella. Although it is often done by shaking, it is most preferable to shake off the water by rotating the umbrella shaft in terms of draining efficiency and not damaging the bones.

However, in order to rotate the umbrella, it is necessary to hold the shaft in a rotatable state with one hand.
It is necessary to use both hands to rotate the handle with the other hand, which is inconvenient if you are carrying luggage, and you have to apply a sudden brake to the rotating handle of the umbrella shaft to stop it from rotating. This has the disadvantage that the attachment of the umbrella handle is often damaged.

This invention aims to provide a rotation mechanism for the umbrella shaft that eliminates these drawbacks.In particular, the lower end of the umbrella handle is a rotating part that rotates freely relative to the umbrella shaft, and the upper end is integrated with the umbrella shaft. The purpose is to provide a mechanism for rotating the umbrella by grasping the rotating part and driving or stopping the fixed part with fingers when rotating the umbrella during draining.

FIG. 1 is a cross-sectional view of an umbrella shaft 1 and a handle attached to its lower end. The handle 2 has a collar-shaped or sleeve-shaped fixing part 3 fitted and fixed to the umbrella shaft 1 at the upper part, and a lower end of the fixing part 3. and umbrella shaft 1
The rotary sleeve 4 is rotatably fitted into the rotary sleeve 4, and a dish-shaped bearing portion 5 is fixed to the lower end of the rotary sleeve 4 so as to close the lower end thereof.

A front end accommodating part 6 for accommodating the outer peripheral end of the umbrella rib is formed at the upper inner circumference of the fixed part 3, and a reduced diameter part 7 that fits with the upper end of the rotating sleeve 4 is formed at the lower end.

A fixing pin 8 is passed through the reduced diameter portion 7 and the umbrella shaft 1 inside thereof in the lateral direction to integrally fix the umbrella shaft 1 and the fixing portion 3.

In this example, the fixing pin 8 is a flat head screw so that it can be disassembled and reassembled, and a female thread is formed on the circumferential wall of the reduced diameter portion on the tip side of the screw, but the pin 80 can also be fixed by caulking both ends of the pin 80.

The upper end of the rotating sleeve 4 has a four part 9 into which the reduced diameter part 7 is rotatably fitted, and the peripheral wall of the recess 9 is provided with a pin hole 10 into which the pin 8 is inserted/removed or fixed by caulking. There is.

The lower end of the rotating sleeve 4 has a reduced diameter part 11 that fits into the upper end of the dish-shaped recess 12 of the bearing part 5, and the bearing part 5 and the rotating sleeve 4 are fastened by bolts 13 screwed from the lower end side of the bearing part 5. Fixed.

An end face cap 14 having a protruding part at the center and a seven-flange shape at the lower end is fixedly fitted to the lower end of the umbrella shaft 1, and the flange part is connected to the bottom surface of the dish-shaped recess 12 and the lower end surface of the reduced diameter part 11. The flange portion of the end cap 14 at the lower end of the umbrella shaft 1 abuts on the upper and lower surfaces, and the sleeve 4 and the bearing portion 5 This prevents the umbrella shaft 1 from being pulled out from the rotating part.

A recess 16 is formed at the center of the lower end of the end cap 14, and a ball 15 made of a hard material is accommodated therein.
The rotation of the umbrella shaft 1 within the rotating parts 4 and 5 is made smooth.

Also, the four parts 16 and 1 with which the upper and lower surfaces of the ball 15 are in contact
Wear prevention members 17 and 18 are inserted into the bottom surface of 2 as necessary.

As a result of this invention being constructed as described above, the umbrella shaft 1, that is, the umbrella itself, can be rotated with one hand by pushing and rotating the surface of the fixed part 3 in the circumferential direction with, for example, the thumb while grasping the rotating part. Also, when you want to stop the rotation, you can gently press the circumferential surface of the rotating fixed part with your fingers.

As a result, there is no possibility of damaging the ribs or fabric of the umbrella due to excessive impact, and the umbrella has the advantage of being able to easily drain water with one hand even when carrying luggage or the like.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the handle of a folding bat umbrella showing the mechanism of the present invention. 1...Umbrella shaft, 2...Handle, 3...
・Fixed part, 4...Rotating sleeve, 5...
・Bearing part, 6...Tube end housing part, 7...
Reduced diameter part, 8... Fixed pin, 9... Recessed part, 10... Pin hole, 11... Reduced diameter part,
12...Dish-shaped interior, 13...Bolt,
14... End cap, 15... Ball, 16... Recess, 17, 18... Wear prevention member.

Claims (1)

[Scope of utility model registration request] The handle 4 that fits on the lower end of the umbrella shaft 1 is rotated to the umbrella shaft 1 so that the upper end thereof is joined to the fixing part 3 that is fixedly fitted to the umbrella shaft 1, and the upper end is joined to the lower end of the fixing part 3. It consists of a rotary sleeve 4 that can be fitted freely, and a bearing part 5 that is fixed to the lower end of the rotary sleeve 4 and abuts the lower end of the umbrella shaft 1.The lower end of the umbrella shaft 1 has a flange part on the outer periphery of the lower end. A dish-shaped recess 1 in which an end face cap 14 is fixed, and a flange portion of the fixed cap 14 is formed on the joint surface of the rotating sleeve 4 and the bearing portion 5.
2. An umbrella shaft rotation mechanism rotatably housed in 2.