JPS6322886Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a push button case for an automatically opening Western umbrella.

As is well known, in automatic opening Western umbrellas, the push button is stored loosely in the push button case provided on the hand side.
It is configured to push and operate the repellent built into the middle rod. Therefore, when assembling the umbrella, it is necessary to align the case, the push button, and the repellent, making the assembly time-consuming and troublesome, and the assembly performance is poor. In addition, since the case stores the pushbutton in a loosely fitted state, the case itself becomes large and looks unsightly, and dimensional accuracy of the pushbutton and case is also required.
Moreover, the structure was complicated and productivity was poor. In addition, the push button is urged outward by the elastic force of the repellent and is housed stably in the case, so if a gap occurs between the repellent and the push button due to dimensional errors, the push button will not move inside the case. The pushing operation was not smooth as it rattled or stuck, and the pushing amount was not constant and was unstable.

Therefore, as a conventional technique which attempts to solve such problems, there is a known technique described in Japanese Utility Model Publication No. 54-29972. This conventional technology integrates a push button and a case, and also integrates a push button and a repellent. According to this conventional technology, the lower potter's wheel must be locked when the repellent is closed, and a tensile force is applied to the retractor, so the connecting part between the push button and the case must be able to withstand the tensile force. Must be. Therefore, the connecting portion between the push button and the case is stiff and is not suitable for bending and deforming, and there is a risk that it will break if repeatedly deformed over a long period of time.

Therefore, the present invention was devised in view of the above-mentioned problems, and the push button and the push button case are integrally molded, and excessive force is not applied to the joint between the push button and the case so that it can be used for a long period of time. To provide a durable push-button case for an automatically opening Western umbrella. Therefore, its characteristic feature is that the inner cylinder, which is tightly fitted to the inner rod of a Western umbrella with a built-in cissing mechanism, and the outer cylinder, which is loosely fitted to the inner rod through a predetermined space, are integrally formed through a continuous part. A push button window is opened in the outer cylinder,
A push button that is loosely fitted into the window and comes into contact with the pushing operation protrusion of the repellent is integrally formed with an elastically deformable thin base that stands up from approximately the center of the upper surface of the connecting part. , and the back surface of the push button that comes into contact with the protrusion is formed into an inclined surface that widens radially outward as it goes toward the tip side opposite to the proximal side of the center rod.

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

What is shown in FIGS. 1 to 3 is the first example of the present invention.
This is an embodiment, and in the figure, reference numeral 1 denotes a push button case, which is integrally molded from flexible synthetic resin and consists of a case body 2 and a push button 3.

The case body 2 consists of an inner cylinder and an outer cylinder 5, and the lower end of the outer cylinder 5 is integrally connected to the middle part of the inner cylinder 4 via a connecting part 6. And the upper end of the inner cylinder 4 is the outer cylinder 5
It is located below the top. An opening 7 extending from the continuous portion 6 to the upper edge of the inner cylinder 44 along the axial direction is provided on one side of the inner cylinder 4 housed in the outer cylinder 5 . A push button window 8 is provided in the outer cylinder 5 facing the opening 7.

A push button 3 is provided adjacent to this window 8 and has a base 9 in a continuous portion 6, and is integrally provided with the case body 2.
This base portion 9 is formed to be thin so that it can be bent elastically. The base 9 has an outer cylinder 5 and an inner cylinder 4.
It is erected from the continuous part 6 located in the space.
An operating section 10 provided at the upper end of the base 9 swings about the base 9 as a fulcrum and can move forward and backward through the window 8. The surface of the operating section 10 protrudes beyond the window 8, and the back surface of the operating section 10 has a repellent fitting groove 11. It is recessed in the axial direction.

The back surface of the operating section is formed into an inclined surface that expands radially outward as it goes upward.

The push button case 1 has an inner cylinder 4 that is tightly fitted onto the inner rod 12 and protrudes downward from the connecting part 6.
A pin 13 is driven into the inner rod 12 and the push button case 1 are fixed to each other. A handle 14 is fitted into the inner cylinder 4 that projects downward.

The middle rod 12 has a built-in repellent 15, and the repellent 1
5. A push operation protrusion 16 at the lower end protrudes freely forward and backward from the inner rod 12 and the opening 7 of the inner cylinder, and the protrusion end fits into the repellent fitting groove 11 of the push button 3, and the operation part 10 of the push button 3 is inserted into the push button 3. The base portion 9 is bent by constantly being biased outward. In addition, a ball holder 17 that converges and accommodates the tip of the main rib is slidably fitted on the middle rod 12.
The lower part of 7 can be fitted into the upper part of the outer cylinder 5 of the push button case 1.

Although not shown, a lower potter's wheel or the like is slidably fitted onto the middle rod 12, and the umbrella is opened and closed by engaging the claw 18 of the paddle 15 and the lower potter's wheel in a detachable manner. has been done.

To explain the effects of the first embodiment of the present invention, in the push button case 1, the case body 2 and the push button 3 are integrally molded, so there is no need to adopt a conventional fitting structure. It can be compactly and smartly molded, has a simple structure, and is easy to manufacture. Since it is integrated, there is no need to consider the relationship between the push button, the push button case, and the repellent when assembling it, unlike in the conventional case, and the assembly is easy. Moreover, the base 9 of the push button 3 is located in the space between the inner tube 4 and the outer tube 5, and is as close to the center rod as possible, and the back surface of the push button is formed as an inclined surface, so that the back surface of the operating section 10 The push button 3 always comes into contact with the protrusion 16 of the repellent 15, so that the push button 3 can be pressed smoothly without rattling, and the amount of push is constant. That is, the push button case 1 is connected to the middle rod 12.
In order to assemble the inner rod 2, the case 1 is inserted from the proximal side. However, if the back surface of the push button 3 is formed into a parallel surface along the axis of the inner rod, the repellent 15
If there is a gap between the protruding part 16 and the back surface of the push button 3, the gap between the two cannot be eliminated. However, by forming an inclined surface, the protrusion can be removed by moving and positioning the push button case 1 in the axial direction during assembly. The portion 16 and the back surface are in contact with each other to eliminate the gap. In this way, if the push button case 1 is fixed to the inner rod 12 at the position where the back surface of the push button 3 and the protrusion 16 come into contact, the push button 3 will not wobble.

Further, since the base 9 of the push button 3 is formed thin and easily deforms elastically, it will not break even after repeated use over a long period of time. Moreover, since the base 9 is erected from approximately the center of the upper surface of the continuous portion 6 (the center position in the thickness direction of the continuous portion 6), the front and back sides of the base of the base 9 are evenly spaced on the continuous portion 6. will be supported by Therefore, uniform stress acts against repeated bending deformation, and there is an effect of preventing breakage.

That is, for example, if the base 9 is biased so that the surface of the base 9 and the surface of the continuous portion 6 are flush with each other, the front and back sides of the base 9 will not be able to withstand the bending action. Non-uniform stress occurs, making it more likely to break.

What is shown in FIG. 4 is a second embodiment of the present invention, in which a reinforcing member 19 is embedded in the base 9 of the push button 3. The reinforcing member 19 is made of a spring steel plate or the like. The rest is substantially the same as the first embodiment.

By embedding the reinforcing member 19 integrally in the base portion 9 in this way, damage to the base portion 9 which is bent when the operating portion 10 is pushed and operated is prevented.

Note that the present invention is not limited to the above embodiments.

This invention has a push button and push button case body that are integrally molded, so the structure is simple and can be produced at low cost.Since it is one body, there is no need for assembly, making it suitable for mass production. Since it is pressed down, there is no failure, and since it is integrally molded, it can be molded into a compact and smart shape.

Moreover, the base that connects the push button and the case body is
Since it is provided almost at the center of the continuous part (center in the direction of the continuous part), both the front and back sides of the base are evenly supported by the continuous part, creating an even stress state against repeated action. This prevents breakage accidents, and since the base is thin, it can be easily elastically deformed and is effective in preventing breakage. In addition, the back of the push button is formed into an inclined surface that expands radially outward as it goes to the tip side opposite to the proximal side of the center rod, so the push button case is inserted and assembled from the proximal side of the center rod. By moving the push button case toward the tip, it becomes easier to bring the back of the push button into contact with the protruding part of the repellent, and the push button does not rattle inside the case, resulting in great practical effects. It is something that demonstrates the.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, FIG. 1 is a front view of the first embodiment, FIG. 2 is a sectional view taken along the line of FIG. 1, FIG. 3 is a sectional view taken along the line of FIG. 1, and FIG. FIG. 3 is a cross-sectional view of the second embodiment. 1...Push button case, 2...Push button case body, 3
...Push button, 4...Inner tube, 5...Outer tube, 6...Continuous part, 8...Push button window, 12...Inner bar, 15...Card, 16...Protrusion part.

Claims (1)

[Scope of utility model registration request] An inner cylinder 4 that tightly fits onto the middle rod 12 of a western umbrella and has a built-in cissing 15, and an outer cylinder 5 that loosely fits around the middle rod 12 with a predetermined space are integrally formed via a continuous portion 6. A push button window 8 is provided in the cylinder 5, and a protrusion 16 that loosely fits into the window 8 and is used for push operation of the repellent 15.
The push button 3 that comes into contact with the protrusion 16 is integrally formed with a thin, elastically deformable base 9 that stands up from approximately the center of the upper surface of the connecting portion, and the back surface of the push button 3 that comes into contact with the protrusion 16 is , a push button case for an automatic opening Western umbrella, characterized in that the case is formed with an inclined surface that expands radially outward as it goes to the tip side opposite to the hand side of the middle stick.