JPS5832672Y2 - Push button device for opening and closing western umbrellas - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a push button device for opening and closing a Western umbrella.

As is well known, the push-button device consists of a push-button holder fitted onto a center rod and a push-button held in the holder, and by pushing the push-button, the protruding end of the bar X that is in contact with the bottom surface of the push-button is pressed. The umbrella is automatically opened by pushing and releasing the engagement between the lower opening and the repelling claw, and allowing the lower opening to rise.

Conventionally, a push button is built into a holder so that its top surface protrudes freely forward and backward from an opening formed on the side of the holder, and protrusions provided at the upper and lower ends of the push button are latched to the periphery of the opening to prevent it from being pulled out. is being done.

Therefore, in order to set the push button in the holder, as shown in Fig. 1, a safety hole B is opened in the upper end surface of the holder A.
It was necessary to insert the push button C through the hole B and set it by internally cutting the opening.

Therefore, since it is necessary to provide the setting hole B in the holder A, the overall shape of the holder A cannot be formed into a true cylindrical shape, and the hole B has a shape that protrudes forward, which is not desirable in terms of appearance. .

Furthermore, in order to set it in this manner, the shape of the push button C was limited to a vertically long rectangular shape, making it difficult to change the design.

Further, before the center rod is assembled, the holder A and the push button C are separated, which is inconvenient to transport and store, and is troublesome to assemble.

The present invention was devised in view of the above-mentioned problems, and allows the push button to be set from the front of the opening of the holder, making the overall shape of the holder compact, and making it a subassembly with a minimum number of parts. To provide a push button device for opening and closing a western umbrella, which is convenient for transportation and storage, and which can be assembled to a center rod with a single touch.

Therefore, the feature is that the inner cylinder has a central rod insertion hole penetrating through the shaft center and a storage hole that opens on the radially negative side and communicates with the insertion hole. The outer cylinder, which is open at both ends and has an opening window that is formed smaller around the inner circumferential edge, communicates with the storage hole and the opening window, and the male and female fitting parts provided on both cylinders engage, making them unable to rotate relative to each other. The push button holder is constructed by fitting the locking portion so that relative movement in the axial direction is impossible, and the push button holder is fitted into the storage hole and locked to the inner peripheral edge of the opening window. The push button, which has a flange on its bottom periphery to prevent removal, is loosely fitted into the storage hole so that its top protrudes from the opening window so that it can move forward and backward.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIGS. 2 to 5, reference numeral 1 denotes a center rod, and the center rod 1 has a repellent 2 built therein.

The upper end of the repellent 2 is engaged with and fixed to the peripheral wall of the middle rod 1, and the lower end thereof has a slot groove 3 formed on the side surface of the middle rod 1.
It has a protruding part 4 that protrudes freely from the slot, and has a repellent claw 5 that protrudes freely from the slot groove 3 at its midpoint, and the back surface of the repellent 2 comes into contact with the circumferential wall of the middle rod 1. It is built in so as to urge the protruding part 4 and the repelling claw 5 in the outward projecting direction.

Although not shown in the drawings, a vertically movable lower cover is fitted onto the middle rod 1, and the umbrella is opened and closed by the vertical movement of the lower cover, and the lower cover engages with the repellent claw 5. The closed state is maintained.

Then, by pushing the protrusion 4 of the repellent 2, the repellent claw 5 is recessed into the middle rod 1, and the repellent claw 5 is moved.
When the lower opening black is released, the lower opening black automatically rises above the middle rod 1, and the western umbrella is opened.

A push button device 6 pushes the protrusion 4 of the repellent 2.
The device 6 is mainly composed of a push button holder 7 and a push button 8.

The push button holder 7 is composed of inner and outer double cylinders 9 and 10.

The inner cylinder 9 is a stepped true cylindrical body consisting of a large diameter part 11 and a small diameter part 12, and the small diameter part 12 is fitted into the top of the hand (not shown).

A large diameter flange 13 extending radially outward is provided at the upper end of the upper large diameter section 11, and a large diameter flange 13 is provided at the lower small diameter section 12.
A small-diameter flange 14 is provided near the connecting portion between the small-diameter portion 1 and the small-diameter portion 12 .

The small diameter flange 14 protrudes very slightly from the outer periphery of the small diameter portion 12, and a locking groove 15 is formed around the small diameter flange 14 and the lower end surface of the large diameter portion 11.

The lower end surface of the small diameter flange 14 is formed into a tapered shape.

An insertion hole 16 into which the inner rod 1 is slidably inserted is provided in the axial center of the inner cylinder 9, and an insertion hole 16 is provided on the negative side of the large diameter portion 11 in the radial direction. A storage hole 17 communicating with 16 is provided.

This storage (L17) is formed with a substantially rectangular cross section.

Further, a pair of left and right male fitting portions 18 are provided on the side surfaces of the large diameter portion 11 .

The male fitting portion 18 is a protrusion along the axial direction, and the protrusion is a tapered protrusion that widens from the bottom to the top.

The outer cylinder 10 is a true cylindrical body with openings at both ends, and its inner periphery is slidably fitted onto the large diameter portion 11 of the inner cylinder 9, and the outer periphery is formed to have the same dimensions as the outer diameter of the large diameter flange 13. has been done.

A pair of left and right female fitting parts 19 that engage with the male fitting part 18 are provided along the axial direction on the inner peripheral surface, and the female fitting parts 19
is formed in a tapered groove so as to be tapered connected to the male fitting portion 18.

An inner flange 20 projecting inward is provided at the lower end of the outer cylinder 10, and the inner flange 20 is dimensioned to slidably fit onto the small diameter portion of the inner cylinder 9 and engage with the locking groove 15. is formed.

The total length of the outer cylinder 10 is such that when the outer cylinder 10 is fitted into the inner cylinder 9 and the inner flange 20 is fitted into the locking groove 15, the upper end surface of the outer cylinder 10 and the lower end surface of the large diameter flange 13 are approximately in contact. It is formed to the appropriate length.

Thus, a locking portion 21 is constituted by the inner flange 20 and the locking groove 15.

An opening window 22 is provided on the radial side of the outer cylinder 10, and the opening window 22 engages the male/female fitting portions 18 and 19 and is composed of an inner flange 20 and a locking groove 15. It is provided at a position where it communicates with the storage hole 17 when the outer tube 10 is fitted into the inner tube 9 by fitting the locking portion 21 .

The shape of the opening window 22 is substantially similar to that of the storage hole 17, and the inner peripheral edge of the opening window 22 is formed one size smaller than the inner peripheral edge of the storage hole 17.

Therefore, the inner circumferential edge of the opening window 22 projects inwardly from the inner circumferential edge of the storage hole 17.

As mentioned above, the push button 8 is housed in the housing hole 17 of the push button holder 7, which is separated from the inner and outer double cylinders 9 and 10.

The push button 8 has a shape that is slidably fitted into the opening window 22, and a flange 23 that is slidably fitted into the storage hole 17 is attached to the bottom peripheral edge of the push button 8 located inside the storage hole 17. The flange 23 is engaged with the periphery of the opening window 22 and has the function of preventing the push button 8 from being removed from the storage hole 17.

The top surface of this push button 8 protrudes from the opening window 22 so that it can move forward and backward,
The bottom surface of the push button 8 comes into contact with the protrusion 4 of the repellent 2.

To assemble the push button device 6 of the embodiment of the present invention having the above configuration,
The push button 8 is inserted into the storage hole 17 of the inner cylinder 9 so that the bottom part of the push button 8 is stored.

After pushing the push button 8 so that the top surface of the push button 8 does not protrude from the side surface of the large diameter portion 11, the outer cylinder 10 is fitted into the large diameter portion 11.

In this fitting operation, the male and female fitting parts 18 and 19 are fitted together, and both cylinders 9 and 10 are centered until the inner flange 20 of the outer cylinder 10 and the locking groove 15 of the inner cylinder 9 are fitted. relative movement in the direction.

At this time, the inner flange 20 slides on the small diameter portion 12 and comes into contact with the small diameter flange 14, and movement in the axial direction is restricted.
The lower end surface of the small diameter flange 14 is tapered, and the amount of protrusion of the small diameter flange 14 is extremely small.However, since the outer cylinder 10 and the like are made of synthetic resin and have elasticity, if pushed strongly, The inner flange 20 is fitted into the locking groove 15 beyond the small diameter flange 14, and the locking part 21 is constituted by the inner flange 20 and the locking groove 15, and the inner and outer double cylinders 9, 1
0, relative movement in the axial direction is prevented, and it is maintained in a state where it is extremely difficult to separate the two again.

Since both cylinders 9 and 10 are locked by the locking portion 21 in this manner, no separate fixing means using other members is required.

Since the inner and outer double cylinders 9 and 10 are also engaged by the male and female fitting parts 18 and 19, relative rotation is prevented, and therefore the storage hole 17 and the opening window 22 are 10
Just by fitting them together, they will overlap and communicate with each other without any separate alignment.

Moreover, since the male and female fitting parts 18 and 19 are tapered together, even if there is play in the fitting of the inner cylinder 9 and the outer cylinder 10, a close fit can be achieved, and the two cylinders 9 and 10 can be fitted tightly. There's no fear.

However, the push button 8 recessed into the storage hole 17 has an opening window 22.
The flange 2 of the push button 8 can be protruded forward and backward from the button.
Since the push button 3 is locked to the periphery of the opening window 22, there is no fear that the push button 8 will fall out of the storage hole 17.

In this way, the push button 8 can be set from the front side of the push button holder 7, so the push button holder 7 can be made more compact.
Moreover, the pressing area of the push button 8 can be increased, and operability can be improved.

In particular, if a recess is provided on the top surface of the push button 8, the operability will be further improved.

The push button device 6 that has been made into a subassembly as described above is
Insert the bar 1 with a built-in bar 2 into the push button device 6 and the bar 1 at the position where the bottom of the push button 8 comes into contact with the protrusion 4 of the bar 2.
All you have to do is fix it.

Note that the present invention is not limited to the above-mentioned embodiments, and for example, the male fitting part 18 is connected to the outer cylinder 10 and the female fitting part 19 is connected to the inner cylinder 9.
Alternatively, these may not be provided as protrusions, but may have a protruding fitting structure.

Further, although the locking portion 21 is provided at the connecting portion between the large diameter portion 11 and the small diameter portion 12, it is not limited to this position, and may be located at the upper end or the like.

Further, although the outer cylinder 10 is a true cylinder, the outer circumferential surface of the outer cylinder 10 may be a regular polygon such as a hexagonal shape.
As for the shape of the push button 8, the top surface thereof can be made into a desired shape such as a round shape or an ellipse shape.

In this invention, the push button holder is composed of an inner and outer double cylinder, so that the push button can be set from the front side of the push button 9 holder, and the outer cylinder prevents the push button from being removed, making the shape of the push button holder compact. In addition, it can be made into a subassembly with a minimum number of parts, making it easy to carry and store, and it can be assembled into the center rod with a single touch.

Since the inner and outer double cylinders are fixed by the male/female fitting parts and the locking part, the push button holder can be sub-assembled very easily, and it is highly effective in practical use.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a front view showing an embodiment of the present invention, Fig. 3 is a sectional view taken along the line III--III in Fig. 2, and Fig. 4 is a -IV-- FIG. 5 is an exploded perspective view of the embodiment of the present invention. 6... Push button device, 7... Push button holder,
8...Push button, 9...Inner cylinder, 10...
...Outer cylinder, 16...Insertion hole, 17...
・Storage hole, 18...Male fitting part, 19...
・Female fitting part, 20... Locking part, 22...
・Opening window, 23...Flange.

Claims (1)

[Scope of utility model registration request] The inner cylinder has an inner rod insertion hole that penetrates through the shaft center and a storage hole that opens toward the radial side and communicates with the insertion hole, and is formed on the radial side to be one size smaller than the inner peripheral edge of the storage hole. An outer cylinder having an opening window at both ends is opened, and the storage hole and the opening window communicate with each other, and the male and female fitting parts provided on both cylinders are engaged to prevent relative rotation, and the locking part is engaged. The push button holder is configured by being fitted so that relative movement in the axial direction is impossible, and a retaining flange is provided on the bottom periphery, which is fitted into the storage hole and is locked to the inner periphery of the opening window. A push button device for opening and closing a western umbrella, characterized in that the push button is loosely fitted into a storage hole so that the top part of the push button protrudes from an opening window so that it can move forward and backward.