JPH08325A - Automatically openable/closable umbrella - Google Patents

Abstract

PURPOSE: To provide an umbrella which opens and closes automatically and whose middle rod does not bend and rarely breaks which makes the umbrella highly reliable. CONSTITUTION: A middle rod 13 is fitted on the outside of an inner tube 11, and an outer tube 14 is fitted on the outside of the middle tube 13 in a manner that the tube 14 can be freely slid. An upper tube 15 is inserted in the middle tube 13 at the upper edge of the tube 13. A spring 3 for opening the umbrella and a spring 4 for closing the umbrella are installed in the inner tube 11 in a manner that the spring 3 is inserted between the middle tube 13 and the upper tube 15 and the spring 4 is inserted between the inner tube 11 and the middle tube 13. A bottom lathe 26 is fitted on the outside of the outer tube 14 in a manner that the lathe 26 can be slid freely vertically. The bottom lathes 26 is engaged by connecting a hook 261 provided to the bottom lathe 26 to a hook hole 134 of the middle tube 13. A guide groove 141 is opened on the outer tube 14, and the hook 261 is inserted in this groove 141. A top control tube 54, which has a projection 541, is inserted in the inner tube 11 in a manner that the control tube 54 can be freely slid. When the top control tube 54 slides upwards, the projection 541 pushes the hook 261 of the bottom lathe 26 to disconnect the hook 261 from the hook hole 134.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening / closing umbrella, and in particular, it has an opening umbrella spring and a closing umbrella spring, and an umbrella can be opened and closed by the elastic force of the opening umbrella spring or the closing umbrella spring by operating an operation button. The present invention relates to an automatic opening / closing umbrella.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Application Publication No. Hei 6 (1994) proposed by the applicant of the present application as an umbrella in which an operation button is attached to a handle of an umbrella and the umbrella is automatically opened and closed by operating the operation button.
There is a proposal of -90810. In this proposal, the tip tube is slidably inserted inside the outer tube, and the lower rocker is attached so that the outer circumference of the outer tube is slidable. The lower rocker is a pair extending in the vertical direction opened on the tube wall of the outer tube. It is possible to move up and down by the pin inserted in the slit.

[0003]

In the above-described conventional automatic opening / closing umbrella, since the outer tube has a pair of slits in the wall thereof, the strength of the outer tube is lowered and the outer tube is easily bent. There was a problem that the umbrella might not be able to open and close smoothly if bent or twisted. Furthermore, there is a problem that it may break when it is hit by a strong wind. Further, the conventional automatic opening / closing umbrella has a large number of parts, has a complicated structure, and is apt to cause a failure.

The present invention has been made in order to solve the above-mentioned problems. The outer tube is provided with only one guide groove to enhance the strength, and the number of parts is small, no failure occurs, and reliability is high. The object is to provide an automatic opening / closing umbrella having high performance.

[0005]

In order to achieve the above object, an automatic opening / closing umbrella according to the present invention is provided in an umbrella shaft.
It includes an umbrella center rod mechanism (1) that is a main part that controls automatic opening and closing, and an umbrella frame device (2) that stretches a tension cloth and opens and closes it.

The umbrella center rod mechanism includes an inner tube (11) for connecting a handle (12) to a lower end thereof, and an inner tube (13) slidably fitted to the outer side of the inner tube (11). The middle tube (13)
Slidably fitted to the outside of the fork (14
3) having an outer tube (14) fitted therein and an upper end tube (15) slidably inserted inside the upper end of the middle tube (13), Is the upper wheel (22) fixed to the upper end of the upper tube (15) and the upper wheel (2).
2) A plurality of ribs (21) whose inner ends are rotatably supported.
A middle roller (24) slidably mounted on the upper end of the middle tube (13), and an inner end rotatably supported by the middle roller (24), and an outer end corresponding to each. A plurality of intermediate bones (23) rotatably attached to the ribs (21)
A lower roller (26) slidably mounted on the outer side of the outer pipe (14), an inner end rotatably supported by the lower roller (26), and an outer end corresponding to the lower roller (26). Ribs (2
1) has a plurality of supporting ribs (25) rotatably attached thereto.

Further, the automatic opening / closing umbrella according to the present invention is provided in the middle tube (13) and provides an urging force in a direction in which the upper end tube (15) projects from the inside of the middle tube (13). A spring (3), and a closing umbrella spring (4) provided in the middle pipe (13) and applying a biasing force in a direction in which the inner pipe (11) projects from the middle pipe (13). ing.

Further, an operation button (51) mounted on the handle (12) so as to be slidable up and down, and the inner pipe (1).
1) The operation button (51) is slidably inserted into the operation button (51).
A lower control pipe (52) connected to the control button (51) and connected to the lower end of the connecting rod (531) and slidably provided inside the inner pipe (11). A slide block (53), an upper control pipe (54) that is engaged with the upper end of the connecting rod (531) and works in conjunction with the slide block (53), and a pipe wall of the upper control pipe (54). A projection (541) formed so as to project in the direction of
Ratchet (5) provided in the operation button (51)
13) is engaged with and disengaged from the umbrella centering mechanism (1) to bring the closing umbrella spring (4) and the opening umbrella spring (3) into a compressed state, and a hook lever (provided to release this state). 58) and a control device (5).

Then, the operation button (51) is pushed upward in a closed state where the opening umbrella spring (3) is compressed to push up the operation button (51) so that the protrusion (541) causes the hook in the lower wheel (26). (261) is operated to be pushed out to release the engagement between the lower lock (26) and the middle pipe (13), and the compressed opening spring (3) is released to open the umbrella. The operation button (51) is pushed down to rotate the hook lever (58) to release the compressed umbrella closing spring (4) to close the umbrella.

Further, the outer tube (14) has a lower roller (26).
Groove (141) for guiding the sliding of the hook (261) of the
Is formed on the tube wall of the outer tube (14) only in the vertical direction.

[0011]

The hook (261) of the lower wheel (26) is slidably fitted in the guide groove (141) formed in the outer tube (14) to guide the sliding.

A guide groove (141) is provided in the outer tube (14).
Since only the guide groove is formed, the strength is higher than that of the conventional device in which the pair of guide grooves are formed in the outer tube.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings.

As shown in the figure, the automatic opening / closing umbrella of the present invention is
The umbrella center rod mechanism (1), the umbrella frame device (2), the opening umbrella spring (3), the closing umbrella spring (4), and the control device (5).

The umbrella center rod mechanism includes an inner tube (11) for connecting a handle (12) to a lower end, and an inner tube (13) slidably fitted to the outer side of the inner tube (11). The middle tube (13)
Slidably fitted to the outside of the fork (14
3) An outer pipe (14) fitted therein and an upper pipe (15) slidably inserted inside the upper end of the middle pipe (13).

The umbrella frame device (2) includes the upper end tube (1).
5) an upper roller (22) fixed to the upper end, a plurality of ribs (21) whose inner ends are rotatably supported by the upper roller (22), and a slide on the upper end of the middle tube (13). A middle wheel (24) movably mounted, an inner end of which is rotatably supported by the middle wheel (24), and an outer end of which is rotatably attached to the corresponding rib (21). A plurality of intermediate bones (23), a lower wheel (26) slidably mounted on the outer side of the outer tube (14), and an inner end rotatably supported by the lower wheel (26), A plurality of supporting bones (2) rotatably attached to the ribs (21) having outer ends respectively corresponding thereto.
It consists of 5).

In the opening umbrella spring (3), the lower end (31) is provided in the vicinity of the upper end of the middle pipe (13), and the upper locking portion (1) is provided.
30) and the upper end (32) is engaged with the lower edge of the upper end tube (15) and is sandwiched between the upper locking portion (130) and the lower edge of the upper end tube (15). Then, the middle tube (1
It is located inside 3).

The closing umbrella spring (4) has a lower end (41) engaged with an upper end (110) of the inner pipe (11) and an upper end (4).
2) engages with the middle stage locking part (131) of the middle pipe (13) and is sandwiched between the upper end (110) of the inner pipe and the middle stage locking part (131) of the middle pipe. , Arranged inside the middle tube (13).

The control device (5) includes an operation button (51) slidably attached to the handle (12), the operation button (51), and the inside of the operation button (51). The ratchet (51
3) and the operation button (51) to the umbrella center rod (1)
Of the outer tube (14) of the lower guide groove (14
2) penetrating the slit (112) of the inner pipe (11) and engaging the lower end of the lower control pipe (52) so that the lower control pipe (52) is vertically linked with the operation button (51). And the slide block (53) slidably provided inside the inner pipe (11) and connected to the lower end of the connecting rod (531) and the upper end of the connecting rod (531). The upper control pipe (5) which is worn and works in conjunction with the above-mentioned Suid block (53)
4) and the pipe wall of the upper control pipe (54) is formed so as to project outward, and the hook (261) in the lower wheel (26) is pressed by the operation of the upper control pipe (54). Provided in the upper control pipe (54) and a protrusion (541) for releasing the engagement between the lower wheel (26) and the middle pipe (13), and always protruding from the side surface of the upper control pipe (54). An elastic member (57) that abuts on the inner wall of the middle pipe (13) to stabilize the sliding of the upper control pipe (54) in the middle pipe (13), and the inner pipe (1).
1) is rotatably supported at the lower end of the upper hook part (58).
1) penetrates the lower control pipe (52) and the inner pipe (11) to lock the middle pipe (13), and the lower hook portion (582) is the lower control pipe (52) and the inner pipe (11). And a hook lever (58) which penetrates the outer tube (14) and is rotated by the operation of the ratchet (513) in the operation button (51).
The outer pipe (14) is provided with a guide groove (141) on its side surface, and the hook (261) is provided with the guide groove (14).
1) Slide inside. The upper and lower guide grooves (141),
Reference numeral (142) is a vertically extending recess formed by recessing the tube wall.

Next, the opening / closing operation of the automatic opening / closing umbrella of the present invention will be described.

When this automatic opening / closing umbrella is closed from the open state shown in FIG. 6, the operation button (51) is slid downward to move the lower control pipe (52) downward under the open state. And the ratchet (51
3) is pressed and the lower hook portion (5) of the hook lever (58) is
82) is pushed in and the hook lever (58) is rotated, and the upper hook portion (581) thereof has a hook hole (1) of the middle pipe (13).
33) Detach. As a result, the closed umbrella spring (4) which has been compressed until now is released and its elasticity is exerted to push the middle pipe (13) upward, and the upper control pipe (54) moves relatively downward. Middle stage locking part (13)
1) It abuts on the upper end (131a) and moves the lower wheel (26) relatively downward so that the hook (261) in the lower wheel (26) moves into the lower hook hole (134) of the middle tube (13). , Thereby closing the umbrella device (2) and compressing the opening spring (3) so as to reset it to the closed state as shown in FIG.

When opening this automatic opening / closing umbrella, first, refer to FIG.
In the state shown in Fig. 2, the umbrella rod (1) is compressed toward the handle (12) to urge the closing umbrella spring (4), and the hook (261) of the lower lock (26) is released. The pipe (14) is relatively lowered along the guide groove (141) to engage the upper hook portion (581) of the hook lever (58) with the hook hole (133) of the middle pipe (13). At the same time, lower hook part (582) of hook lever (58)
As shown in FIG. 3, it is inserted into the slit (143a) of the fork (143) attached to the lower end of the outer tube (14). The outer tube (14) has an upper guide groove (14
1) is provided. Therefore, the prior art (Japanese Patent Laid-Open No.
No. 90810), a pair of guide grooves are provided on the tube wall of the outer tube, so that the outer tube is easily bent, and therefore, there is no problem that the opening / closing operation cannot be performed smoothly.

The operation at the moment of opening the umbrella will be described. As shown in FIGS. 4 and 5, the opening umbrella spring (3) is in a biased state when the umbrella is closed. When the operation button (51) is slid upward in this state, the ratchet (513) provided in the operation button (51) moves upward, but the hook lever (58) is locked to the fork (143). Therefore, the lower hook portion (582) does not rotate. Therefore, the upper hook portion (581) of the hook lever (58) is maintained in the state of being engaged with the hook hole (133) of the middle pipe (13). However, the horizontal pin (512) in the operation button (51)
Moves downward together with the operation button (51), so that the lower control pipe (52) moves upward to move the inner pipe (11).
Inside slide block (53) and upper control tube (54)
The upper control pipe (54),
1) pushes out the hook (261) of the lower wheel (26) to the outside to release the engagement between the hook (261) and the lower hook hole (134) of the middle pipe (13), and is in the compressed state until now. Release the pressing force of the opening umbrella spring (3) that has been urged. As a result, the upper end pipe (15) is pushed up, the umbrella device (2) is pulled up, the lower wheel (26) rises, and its hook (261) rises to guide the outer pipe (14). The upper edge of the groove (141a) and the upper hook hole (135) of the middle tube (13) are engaged, and the lower wheel (26) is connected to the outer tube (14).
Of the fork (143) fitted to the lower end of the outer pipe (14) by coming into contact with the upper end protruding edge (140) and further pushing up the outer pipe (14). ) Rises, the ratchet (513) in the operation button (51) rotates inward and reaches a position above the lower hook portion (582) of the hook lever (58). As a result, when the operation button (51) slides downward during the next umbrella closing operation, the ratchet (513) pushes down the lower hook portion (282) of the hook lever (58), so that the hook lever (58). Is rotated and the hook (5
81) is disengaged from the hook hole (133) of the middle pipe (13), and the compressed state of the umbrella closing spring (4) can be released. Further, the upper hook hole (135) of the middle pipe (13) is formed as a long hole in the longitudinal direction. As a result, when the wind force (W) is strong when the umbrella is being used in the open state, when the umbrella bone device (2) is pushed down a little, the hook (261) of the lower wheel (26) causes the middle pipe (13) to move. ) Upper hook hole (13
Since it moves a little downward in 5), the user can temporarily reduce the opening degree of the umbrella to reduce the area hit by the wind and reduce the wind hit.

Further, according to the present invention, when the fork (143) is attached to the lower end of the outer tube (14) and the umbrella is closed, the lower hook portion (582) of the hook lever (58) is cut into the groove of the fork (143). When the user pushes the operation button (51) up or the umbrella-bone device (2) cannot open the umbrella due to the restraint, the operation button (51) is placed in (143a). Even if it slides downward, the ratchet (513) in the operation button malfunctions to rotate the hook lever (58) to release the closing spring (4) and unexpectedly project from the middle pipe (13) or another person. You will not be injured or you will not be able to close the umbrella.

[0025]

According to the present invention, the upper control pipe (54) is
The protrusion (541) pushes out the hook (261) in the lower wheel (26) to lower the lower wheel (26) and the middle tube (1).
Since the engagement of 3) is released, the upper control pipe (5
The structure of 4) is simpler than the conventional automatic opening / closing umbrella, and the reliability is high and the manufacturing cost is low.

Further, the hook (261) of the lower wheel (26)
Is configured to slide up and down in a guide groove (141) formed in the outer pipe (14), and the outer pipe (14) is formed with only one guide groove (141). The strength is higher than the structure of the technology in which a pair of guide grooves are opened, and the outer tube is not bent.

[Brief description of drawings]

FIG. 1 is a cross-sectional country showing a state after the automatic opening / closing umbrella of the present invention is closed from an open state.

FIG. 2 is a partial cross-sectional view showing the configuration of an elastic member of the upper control tube of the automatic opening / closing umbrella of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the umbrella closing spring of the automatic opening / closing umbrella of the present invention is reset.

FIG. 4 is a cross-sectional view showing the moment of opening the umbrella.

5 is an enlarged cross-sectional view of a part of FIG.

FIG. 6 is a cross-sectional view showing a state after opening the umbrella.

FIG. 7 is an enlarged cross-sectional view of a part of FIG.

[Explanation of symbols]

 1 Umbrella centering mechanism 2 Umbrella device 3 Opening spring 4 Closing spring 5 Control device 11 Inner tube 12 Handle 13 Middle tube 14 Outer tube 15 Top tube 21 Parent bone 22 Upper rocker 23 Middle bone 24 Middle rocker 25 Spindle 26 Bottom Locator 51 Operation button 52 Lower control pipe 54 Upper control pipe 57 Elastic member 58 Hook lever 261 Hook 513 Ratchet 541 Protrusion

Claims (5)

[Claims] 1. An inner pipe (1) connecting a handle (12) to a lower end thereof.
1), a middle pipe (13) slidably fitted to the outside of the inner pipe (11), and a middle pipe (13) slidably fitted to the outside of the middle pipe (13), and a fork (143) at the lower end. ) Is fitted to the outer pipe (14), and the upper end pipe (15) slidably inserted inside the upper end of the middle pipe (13), the umbrella center rod mechanism (1), An upper wheel (2) fixed to the upper end of the upper pipe (15).
2), a plurality of ribs (21) whose inner ends are rotatably supported by the upper roller (22), and an intermediate roller (24) slidably attached to the upper end of the intermediate tube (13). A plurality of intermediate bones (23) having an inner end rotatably supported by the middle wheel (24) and an outer end rotatably attached to the corresponding ribs (21); A lower roller (26) slidably mounted on the outer side of the outer tube (14), and an inner end rotatably supported by the lower roller (26) and an outer end corresponding to each rib (21). ), Which is provided in the middle pipe (13) and has the upper end pipe (15) connected to the middle pipe (13). ) An opening umbrella spring (3) for applying a biasing force in a direction of projecting from inside, and an inner pipe (11) provided inside the middle pipe (13) (13) An umbrella closing spring (4) that applies a biasing force in a direction of projecting from inside, an operation button (51) slidably attached to the handle (12) up and down, and inside the inner pipe (11). A lower control pipe (5) slidably inserted in the operation button (51) and connected to the operation button (51) so as to interlock with the operation button (51).
2) and the lower end of the connecting rod (531), and the inner pipe (1
1) A slide block (53) slidably provided inside, and an upper control pipe (54) which is engaged with the upper end of the connecting rod (531) and interlocks with the slide block (53).
And a protrusion (541) formed on the pipe wall of the upper control pipe (54) so as to protrude outward, and a ratchet (513) provided in the operation button (51). And a hook lever (58) provided to release the closed umbrella spring (4) and the open umbrella spring (3) in a compressed state by engaging and disengaging the umbrella centering mechanism (1). A control device (5) including the above, and by pushing the operation button (51) upward under a closed state in which the opening spring (3) is compressed, the lower lock ( The hook (261) in 26) is operated to be pushed out to release the engagement between the lower wheel (26) and the middle pipe (13), and the compressed opening umbrella spring (3) is released. Open the umbrella and push down the operation button (51) to An automatic opening / closing umbrella configured to rotate a hook lever (58) to release a compressed umbrella closing spring (4) to close the umbrella. 2. The control device (5) is provided in the upper control pipe (54) and always protrudes from a side surface of the upper control pipe (54) to come into contact with an inner wall of the middle pipe (13). The automatic opening / closing umbrella according to claim 1, further comprising an elastic member (57) for stabilizing the sliding of the upper control pipe (54) in the middle pipe (13). 3. The slit (1) in the fork (143).
43a), wherein the lower hook portion (582) of the hook lever (58) is inserted into the slit (143a). 4. The upper control pipe (54) is formed so as to project outward, and the upper control pipe (54) is operated to press a hook (261) in the lower wheel (26). The automatic opening / closing umbrella according to claim 1, further comprising a protrusion (541) for releasing the engagement between the lower wheel (26) and the middle pipe (13). 5. The outer pipe (14) is provided with an upper edge (140) at its upper end, and when the lower wheel (26) rises, the lower wheel (26) is brought to the upper edge (140). The outer pipe (14) and the fork (143) fitted to the lower end of the outer pipe (14) are pulled up by the abutment, whereby the hook lever (5) retained by the fork (143) is pulled up.
8) The engagement with the lower hook portion (582) is released, and the hook lever (58) is rotated to close the operation button (5
The ratchet (513) of 1) enables the umbrella closing operation after closing the umbrella, and the lower end of the outer pipe (14) is guided to the long slit (112) at the lower end of the inner pipe (11). The automatic opening / closing umbrella according to claim 1, wherein a pin (512) that is moved is inserted and guided to move.