JPS5942917Y2 - Western umbrella without hatchet - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a Western umbrella without a repellent.

The inventor of the present application has already proposed a Western umbrella without a repellent as described in Publication of Utility Model Publication No. 35-17971.

As shown in FIG. 1, this western umbrella has a U-shaped cross-section metal fitting 2 fitted and fixed in the middle of a main rib 1 with a U-shaped cross-section, and steps 3 having the thickness of the metal fitting 2 are formed at both ends of the metal fitting 2. In the U groove 4 of the metal fitting 2,
A chevron-shaped bullet wire 5 that is slightly thinner than this groove width is fitted, and the bent ends 6 at both ends are in contact with the bottom surface of the rib groove and are opposed to the stepped portions 3, respectively, and are attached to the projecting pieces 7 on both end edges of the metal fitting 2. An inclined side 12 near the top of the chevron bullet ray 5 was pressed against one corner 10 or the other corner 11 of the tip 9 of the pivotally supported support bone 8.

The above-mentioned western umbrella can maintain the open and closed states by pressing the chevron rays 5 against the tips 9 of the support beams 8, thereby eliminating the need for conventional cissing.

However, in the above structure, both ends of the chevron ray 5 were in contact with the bottom surface of the groove of the main rib 1, so when the support bone 8 rotates, the both ends are pressed against the bottom surface of the groove of the main rib 1 and move in the longitudinal direction. It became difficult to do so, and rotation of the support bone 8 was permitted only by elastic deformation of the chevron ray 5.

Therefore, the repulsive force of the bullet 5 was strong, making it extremely difficult to open and close the umbrella.

Furthermore, since the vertebrae 8 was straight to its tip,
As shown by the imaginary lines in FIG. 1, in the closed state, the main rib 1 and the support bone 8 come close to each other in close contact with each other, and also approach the middle rod. This interferes with grasping the black by hand, and combined with the strong pressing force of the bullet 5, opening and closing operations are difficult.

Further, when the umbrella is closed, the main rib 1 comes into close contact with the center rod, so the tip of the protruding piece 7 of the metal fitting 2 hits the center rod, making it easy to damage the surface of the center rod.

This was a fatal flaw, especially for those with painted center rods.

Therefore, the present invention was devised in view of the above problems, and when the umbrella is closed, the main rib does not converge so tightly that it comes into close contact with the center rod, but converges quickly, making opening and closing operations easy. In addition, it is an object of the present invention to provide a Western umbrella without a repellent, which prevents the metal fittings from coming into contact with the center rod and causes no damage to the center rod.

Therefore, its characteristic feature is that it has a support bone, one end of which is rotatably connected to the middle part of the main rib, and the other end of which is rotatably connected to the lower part of the rod that can move up and down the center rod. An elastic member that comes into elastic contact with the corner of the tip of the main rib pivoting part of the support bone and urges the lower potter's wheel upward when opening the umbrella, and urges the tip of the main rib in the convergence direction when closing the umbrella,
In the Western umbrella without a stub provided in the U-shaped groove of the main rib, the main rib pivot part of the support bone is bent and formed so as to substantially follow the slope of the main rib when the umbrella is opened.

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

What is shown in Fig. 2 is an overall view of the Western umbrella without a repellent according to the present invention.
&Ma shows the fully closed state.

In this FIG. 2, 20 is a center rod, and an upper potter's wheel 21 is fixed to the upper part of the center rod 20.

The upper end of the main rib 22 is pivotally connected to the upper potter's wheel 21 so as to be vertically movable.

A connecting fitting 23 is fitted and fixed in the middle of the main rib 22, and one end of a support rib 24 is pivotally connected to the fitting 23 so as to be vertically movable.

The other end of this support 24 is pivotally connected to a lower jaw 25 that moves up and down on the middle rod 20 so as to be vertically movable.

When the umbrella is opened, the lower jaw joint part 26 of the support bone 24 is located very slightly above the main rib pivot joint part 27 at the other end, and the stopper 28 prevents the lower jaw joint 25 from moving upward at the same position. is fixed to the center rod 20.

The middle rod 20 is not provided with a conventional repellent for locking the lower claw 25 at the raised position H and the lowered position of the lower claw 25.

The umbrella cloth 29 is stretched over the main rib 22.

FIG. 3 shows details of section A in FIG. 2.

In FIG. 3, the rib 22 has an inverted U-shaped cross section, and a connecting fitting 23 having an inverted U-shaped cross section is fitted into the rib groove 30 and fixed by caulking 31. As shown in FIG.

A pair of left and right protrusions 32 are protruded from both side edges of the metal fitting 23, and a support shaft 33 is installed horizontally between the protrusions 32, and the main bone pivot portion 27 of the support frame 24 is rotatable on the support shaft 33. is supported by

The main rib pivot portion 27 is bent relative to the main rib body so as to substantially follow the slope of the main rib 22 in the open state.

This bent portion 34 is bent into a U-shape.

A chevron-shaped bullet 36 is fitted into the groove 35 of the connecting fitting 23.

One end of this bullet 36 is bent, and the end surface of the bent end 37 comes into contact with the bottom surface of the rib groove 30, and the bent end 37 engages with one end edge of the connecting fitting 23.

The other end of the bullet 36 is also bent and formed, and the top of the curve is formed into the metal fitting groove 3.
A sliding portion 38 is movably slidably in contact with the bottom surface of 5.

The middle part of the bullet 36 is formed into a mountain shape so as to be pressed against the tip of the main bone pivot portion 27 of the support bone 24, and the inclined side 39 is pressed against one corner 40 or the other corner 41 of the tip of the pivot portion 27. are doing.

Each of the corners 40 and 41 at the tip of the main bone pivot portion 27 of the support bone is rounded in order to stably contact the bullet 36.

Therefore, when the umbrella is opened, the inclined side 39 of the bullet 36 is
One corner 40 at the tip of the main bone pivot portion 27 of the support bone 24 is urged in the direction of arrow a in the figure.

As a result, the lower jaw joint part 26 side of the support bone 24 is urged in the direction of the arrow, and the lower jaw 25 comes into contact with the stopper 28 and maintains this abutting state.

Moreover, in this state, the lower opening black pivot joint 26 is at a position higher than the main rib pivot joint 27 by h, and the umbrella cloth 29
Coupled with the main rib reduction force F due to the tension, the lower opening black 25 is strongly urged upward, and maintains the open state without moving downward.

Next, to close the umbrella from the open state A, grasp the lower opening clog 25 with your hand and pull it down against the biasing force of the bullet 36 and the tension of the umbrella cloth 29.

When the lower jaw 25 moves downward, the main bone pivot portion 27 of the support bone 24 rotates around the support shaft 33, and the tip of the main bone pivot portion 27 rotates while pressing the bullet 36.

During this rotation, the bent end 37 at one end of the bullet 36 is pressed against the bottom surface of the rib groove 30, so no movement in the longitudinal direction occurs.
Moreover, since it is engaged with the edge of the connecting fitting 23, movement is prevented.

However, since the sliding portion 38 at the other end is movable on the bottom surface of the metal fitting groove 35, it moves in the longitudinal direction so as to release the deformation of the bullet ray 36 and weaken the elastic force of the bullet ray 36. It becomes extremely easy to pull down the lower opening black 25 after it has passed.

In the closed state, the bullet 36 hits the support bone 24 and the other corner 4.
1 in the direction of arrow C, the tip of the main rib 22 is urged in the direction of arrow d and maintains the converged state.

At this time, the bent portion 34 of the support bone 24 comes into contact with the center rod 20, and the protruding piece 32 of the connecting fitting 23 is prevented from colliding with the center rod 20, thereby preventing damage to the surface of the center rod 20. .

Since this bent portion 34 does not have a sharp edge unlike the protruding piece 32, even if it comes into contact with the center rod 20, the surface thereof will not be damaged.

Furthermore, since the bent portion 34 of the support bone 24 comes into contact with the middle rod 20,
Since the main rib 22 converges at a position farther away from the center rod 20, it becomes easier to grip the lower opening 25 when opening the umbrella.

Furthermore, the weak spring force of the bullet 36 and the soft convergence of the main ribs 22 make it possible to rapidly rotate this western umbrella around the axis of the center rod 20, resulting in a centrifugal force. The ribs 22 open and expand, making it extremely easy to open the western umbrella.

The one shown in FIG. 4 shows another embodiment of the chevron bullet 36, in which the bent end 37 is opposite to that in FIG. 3, and the chevron shape is close to a trapezoid. It is.

Note that the present invention is not limited to the above embodiments,
For example, the chevron-shaped bullet 36 shown as an elastic body may be formed by forming a spring steel plate into a corrugated shape.

According to the present invention, the opening/closing operation becomes easy, and the inner rod is not damaged, so that it can be put to practical use and exhibits great effects.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional example, Fig. 2 is a sectional view showing an embodiment of the present invention, Fig. 3 is an enlarged view of section A in Fig. 2, and Fig. 4 is a sectional view showing another embodiment. It is. 20... Middle stick, 22... Outer rib, 24.
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
... Main bone pivot point of the trabecular bone, 34... Bent part,
36...Bullet ray (elastic body), 40°41...
...Corner.

Claims (1)

[Scope of utility model registration request] One end is rotatably connected to the middle part of the main rib, and the other end is rotatably connected to the lower mouth part that can move the center rod up and down. In a Western umbrella without a repellent, an elastic member is provided in the U-shaped groove of the main rib in elastic contact with the corner of the tip to urge the lower potter's wheel upward when the umbrella is opened, and to urge the tip of the main rib in the convergence direction when the umbrella is closed. , a Western umbrella without a repellent, characterized in that the main rib pivot portion of the supporting bone is bent and formed so as to substantially follow the slope of the main rib when the umbrella is opened.