JP2007222591A - Folding umbrella - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably lock/hold the opening state of a folding umbrella including a multi-stage expansible metal rod with the use of nested pipes. <P>SOLUTION: The folding umbrella includes: the multi-stage expansible metal rod 10 with the use of the nested pipes, which is obtained by slidably fitting a plurality of element pipes 10a-10d different in diameter stepwise in order of diameter; folding ribs 40 bent/extended by the vertical movement operation of a lower runner 22 fitted to the metal rod; and a stop spring 13 which is arranged at the upper side of the metal rod and locks the lower runner 22 so as to be removable from a lower part when the umbrella is opened. The lower runner 22 includes a variable mechanism for reducing a fitting hole diameter with the metal rod 10 at the lock position by the stop spring 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a foldable umbrella provided with a multistage telescopic middle rod using a nested pipe.

  The folding umbrella is configured by using a multistage telescopic middle rod with a nested pipe together with a folding umbrella bone. The nested pipe is configured by fitting a plurality of element pipes having different diameters in a stepwise manner so as to be slidable in the diameter order (see, for example, JP-A-2003-189916).

  FIG. 9 shows an outline of a conventional folding umbrella. The folding umbrella shown in the figure uses a four-stage telescopic middle rod 10 composed of four element pipes 10a to 10d. Each of the element pipes 10a to 10d is gradually formed in a small diameter, and is slidably fitted in order of diameter.

  An upper rocker 21 is fixed to the upper end of the middle bar 10. A lower rocker 22 is disposed below the upper rocker 21. The lower roller 22 has a fitting hole through which the middle rod 10 passes, and is fitted so as to be movable along the middle rod 10.

  A movement fulcrum of the folding umbrella bone 40 is pivotally supported on the upper rocker 21 and the lower rocker 22. The folding umbrella bone 40 is called a hook type, and is composed of an original parent bone 41, a middle parent bone 42, a leading parent bone 43, a receiving bone 45, a wire-shaped joint 51, a wire spring (spring straight line) 52, and the like. Yes.

  The original parent bone 41, the middle parent bone 42, and the previous parent bone 43 are sequentially hingedly connected, and the proximal end of the original parent bone 41 is pivotally supported by the upper rocker 21. The receiving bone 45 has a proximal end pivotally supported by the lower rocker 22 and a distal end hinged to the middle of the original parent bone 41.

  When the lower rocker 22 is moved upward, the angle between the receiving bone 45 and the original parent bone 41 is changed, and the middle parent bone 42 and the leading parent bone 43 are elongated in accordance with this change, and an opened umbrella state is formed. The This opened state is detachably locked and held by the repellent 13.

The repellency 13 is provided on the element pipe 10 d that forms the most advanced portion of the intermediate rod 10. In this element pipe 10d, a spring and a hinge are incorporated so that the repellent 13 protrudes to the outside of the pipe 10d so as to advance and retreat. In addition, the code | symbol 11 shows a stone tip and 12 shows a hand.
JP2003-189916

  The folding umbrella described above has the following problems. In other words, the folding umbrella uses a multistage telescopic middle rod 10 with a nested pipe, and the nested pipe is fitted with a plurality of element pipes 10a to 10d having different diameters so that they can slide in a diameter order. Configured. The telescopic middle rod 10 is thicker on the lower side and thinner on the upper side. That is, there is a difference in diameter between the lower part and the upper part.

  The opening and closing operation of the umbrella is performed by moving the lower rocker 22 up and down along the middle bar 10. In this case, the lower rocker 22 is fitted to the thickest element pipe 10a at the bottom when the umbrella is folded, while it is fitted to the thinnest element pipe 10d at the top when the umbrella is opened. It is done.

  In order to open and close the umbrella without hindrance, the lower roll 22 must be movable from the lower part to the upper part of the middle bar 10. For this reason, the fitting hole diameter of the lower roller 22 through which the middle rod 10 passes is matched with the outer diameter of the thickest element pipe 10a.

  As shown by a broken line in FIG. 9, the lower rocker 22 is fitted to the lowermost element pipe 10a with the umbrella folded, but is fitted to the uppermost element pipe 10d with the umbrella opened.

  FIG. 10 is a cross-sectional view showing a fitting state of the lower roller 22 and the middle rod 10. The lower roller 22 has a small play gap and is closely fitted to the lowermost element pipe 10a as shown in (a) of the figure, but for the uppermost element pipe 10d, As shown in FIG. 5B, the fitting is performed with a large play gap.

  The opened state is formed in a state where the lower rocker 22 is engaged with the uppermost element pipe 10d, and this state is locked and held by the repellent 13 provided on the uppermost element pipe 10d. However, if the play gap between the lower rocker 22 and the element pipe 10d is large, the locking by the repellent 13 is likely to be released, and there is a problem that the opened state cannot be stably maintained.

  In order to stabilize the open state, it seems that the overhang width (stroke) of the repellent 13 should be increased. However, this repellent 13 must be provided in the narrowest element pipe 10d due to the structure of the nested pipe. I must. Therefore, the overhang width of the repellent 13 is reduced according to the diameter of the element pipe 10d. For this reason, in the folding umbrella using the multistage telescopic middle rod 10 by the nested pipe, it has been impossible to avoid that the opening and holding state of the umbrella by the repellency 13 becomes unstable.

  The present invention solves the above-mentioned problems, and its purpose is to stabilize the locking and holding of the opened state in a folding umbrella having a multistage telescopic middle rod with a nested pipe. I will let you.

  Other objects and configurations of the present invention will become apparent from the description of the present specification and the accompanying drawings.

  The present invention provides the following solutions.

  (1) A multistage telescopic middle rod made of a nested pipe in which a plurality of element pipes having different diameters are slidably fitted in a diameter order, an upper roll fixed above the middle rod, It is equipped with a lower rocker that can be moved up and down on the rod, and a folding umbrella bone that is pivotally supported by the upper and lower rockers to bend / extend as the lower rocker moves vertically. In the foldable umbrella provided with a repellent that can be removably engaged from below, the lower reticule reduces the fitting hole diameter with the middle rod at the position where the repelling is engaged. A folding umbrella characterized by having a variable mechanism.

  (2) In the above means (1), the lower rocker is composed of a lower cylinder part connected to the lower part of the pivot part for pivotally supporting the folding umbrella bone, and a floating outer cylinder fitted to the lower cylinder part so as to be vertically movable The lower cylinder part is formed with a movable piece that is elastically deformable in the radial direction, while the floating outer cylinder part is provided with a cam part that presses the movable piece toward the middle rod side in its upward movement position. A folding umbrella characterized by being formed.

  (3) The folding umbrella according to the means (2), wherein the movable piece is formed integrally with the lower tube portion by providing a cut in the lower tube portion.

  (4) In the above means (1), the lower rocker is provided with a movable member that is urged elastically toward the middle rod side and moves back in the radial direction while elastically contacting the middle rod. The folding umbrella characterized in that the fitting hole diameter changes depending on the outer diameter of the intermediate rod.

  (5) In any one of the above means (1) to (4), the lower lokuro is a folding umbrella characterized in that the cylindrical portion is connected to the upper and lower portions of the pivot portion.

  (6) In any one of the above means (1) to (3), (5), the multistage telescopic middle rod using the nested pipe is capable of sliding a plurality of element pipes having different diameters step by step in the diameter order. It is configured so that the extended state is positioned and maintained by a spring-operated and push-in type automatic lock pin that fits, and the lower rocker is a lower cylinder that is connected to the bottom of the pivot that pivotally supports the folding umbrella bone Part, a floating outer cylinder part fitted to the lower cylinder part so as to be movable up and down, a variable mechanism for reversibly reducing a fitting hole diameter with respect to the middle rod of the lower cylinder part by upward movement of the floating outer cylinder part, A folding umbrella, comprising: a spring member that generates a spring repulsive force that opposes the upward movement of the floating outer cylinder portion.

  In the folding umbrella provided with a multistage telescopic middle rod by a nested pipe, the locking and holding of the opened umbrella can be stabilized.

  Operations / effects other than those described above will be apparent from the description of the present specification and the accompanying drawings.

  FIG. 1 shows an outline of a folding umbrella constituting the first embodiment of the present invention. FIG. 2 shows a cross section of the lower lokuro which forms the main part of the present invention. FIG. 3 shows a fitting state of the lower roll and the center rod.

  The folding umbrella shown in the figure uses a four-stage telescopic middle rod 10 composed of four element pipes 10a to 10d. Each of the element pipes 10a to 10d is gradually formed in a small diameter, and is slidably fitted in order of diameter.

  An upper rocker 21 is fixed to the upper end of the middle bar 10. A stone bump 11 is mounted on the upper rocker 21. A cup-shaped hand 12 is attached to the lower end of the center rod 10.

  Below the upper block 21, a lower block 22 is disposed. The lower roller 22 has a fitting hole through which the middle rod 10 passes, and is fitted so as to be movable along the middle rod 10.

  A movement fulcrum of the folding umbrella bone 40 is pivotally supported on the upper rocker 21 and the lower rocker 22. The folding umbrella bone 40 is called a topless type, and includes a receiving bone 46, a former parent bone 41, a middle parent bone 42, a leading parent bone 43, an auxiliary bone 47, wire-shaped joints 51 and 53, and a wire spring (spring straight line). 52 or the like. Reference numeral 15 denotes an umbrella fabric sewn on the folding umbrella bone 40.

  An original parent bone 41 is hinge-connected to the distal end of the receiving bone 46, an intermediate parent bone 42 is hinge-connected to the distal end of the original parent bone 41, and an earlier parent bone 43 is hinge-connected to the distal end of the intermediate parent bone 42. The proximal end of the receiving bone 46 is pivotally supported by the lower roller 22. The auxiliary bone 47 has a proximal end pivotally supported by the upper rocker 21 and a distal end hinged to the middle of the receiving bone 46.

  When the lower rocker 22 is moved upward, the angle between the auxiliary bone 47 and the receiving bone 46 is changed, and the original parent bone 41, the middle parent bone 42, and the front parent bone 43 are extended in accordance with this change, and the umbrella is opened. A state is formed. This opened state is detachably locked and held by the repellent 13.

  The repellency 13 is provided on the element pipe 10 d that forms the most advanced portion of the intermediate rod 10. As shown in FIG. 3B, a spring 131 and a hinge 132 are incorporated in the element pipe 10d so that the repellant 13 protrudes outwardly from the pipe 10d.

  As shown in FIGS. 2A and 2B, the lower rocker 22 includes a pivotal support part 220 that pivotally supports the folding umbrella bone 40, a lower cylindrical part 222 that is connected to the upper and lower sides of the pivotal support part 220, and an upper part. A cylindrical portion 221 is integrally provided.

  A movable piece 224 that is elastically deformable in the radial direction is formed in the lower cylindrical portion 222. The movable piece 224 is formed integrally with the lower cylinder portion 222 by providing the lower cylinder portion 222 with an axial cut 223. A protruding portion 225 is formed on the free end of the movable piece 224 so as to project outward.

  A loose outer cylinder part 226 is fitted to the lower cylinder part 222 so as to be movable up and down with respect to the lower cylinder part 222. A cam portion 227 that presses the projection 225 of the movable piece 224 toward the middle rod 10 at an upward movement position with respect to the lower tube portion 222 is integrally formed with the floating outer tube portion 226.

  In the state where the floating outer cylinder part 226 is positioned below, the movable piece 224 is retracted to the substantially same circumferential position as the cylinder wall of the lower cylinder part 222 as shown in FIG. When the floating outer cylinder part 226 is moved upward with respect to the lower cylinder part 222, the movable piece 224 is bent and deformed inward as shown in FIG. Shrink.

  The opening / closing operation of the umbrella is performed by moving the lower rocker 22 up and down along the middle bar 10. In this case, the lower rocker 22 is fitted to the thickest element pipe 10a at the bottom when the umbrella is folded, while it is fitted to the thinnest element pipe 10d at the top when the umbrella is opened. It is done.

  The vertical movement of the lower roller 22 is performed in a state where the floating outer cylinder part 226 is lowered to the lower position with respect to the lower cylinder part 222. In this state, as shown in FIG. 3A, the movable piece 224 is retracted to the same circumferential position as the cylindrical wall of the lower cylindrical portion 222, and the lower rocker 22 has element pipes 10a to 10d having different thicknesses. You can freely slide between them.

  When the lower rocker 22 is pushed up to the opening position, and the floating outer cylinder 226 is further pushed up with the upper end of the upper tubular part 221 abutting against the lower end of the upper rocker 21, as shown in FIG. The cylinder part 226 is moved upward with respect to the lower cylinder part 222. By this movement, the cam portion 227 of the floating outer cylinder portion 226 pushes the projection 225 of the movable piece 224 in the radial direction, thereby narrowing the inner diameter of the lower cylinder portion 222.

  As a result, at least at the place where the repellent 13 is locked and held, the play gap between the lower rocker 22 and the element pipe 10d is reduced, and even if the overhang width (stroke) of the repellent 13 is small, the reopening by the repellent 13 is performed. Position locking and holding can be performed reliably and stably.

  In this case, although the detailed illustration of the floating outer cylinder portion 226 is omitted, the floating outer cylinder portion 226 is locked so as not to come out below the lower cylinder portion 222, and the idle movement range is restricted. The upper cylindrical portion 221 is formed in such a length as to abut against the lower end of the upper block 21 when the lower block 22 moves slightly above the position where the repelling 13 is engaged.

  FIG. 4 shows a second embodiment of the present invention by a cross-sectional view of a main part thereof. In the embodiment shown in the figure, a movable member 228 and a spring member 229 are provided on the lower roller 22. The movable member 228 is constantly elastically biased toward the middle rod 10 by the spring member 229, and moves back and forth in the radial direction while elastically contacting the middle rod. That is, the movable member 228 is configured to retreat forward in the radial direction so as to follow the outer diameter of the intermediate rod 10.

  As shown in FIGS. 4A and 4B, even if the outer diameter of the center rod 10 changes, the movable member 228 moves forward and backward in accordance with the change, so that the extension width (stroke) of the repellent 13 is increased. Even if it is small, it is possible to avoid the occurrence of a play interval between the lower roller 22 and the middle rod 10 that destabilizes the locking and holding by the repellent 13.

  FIG. 5 shows an outline of a folding umbrella constituting the third embodiment of the present invention. FIG. 6 shows a cross section of the lower lokuro which forms the main part of the present invention. FIG. 7 shows the fitting state of the lower roll and the center rod. Further, FIG. 8 shows a state in which the lower lokuro moves along the middle bar.

  The folding umbrella of the third embodiment is similar to that of the first embodiment described above, and the lower cylinder 22 is connected to the lower cylindrical portion 222 under the pivotal support 220 that pivotally supports the bone of the folding umbrella 20. A floating outer cylinder portion 226 that is fitted to the lower cylinder portion 222 so as to be movable up and down, and a variable mechanism that reversibly reduces the fitting hole diameter with respect to the middle rod 10 of the lower cylinder portion 222 by the upward movement of the floating outer cylinder portion 226. (224, 225, 227) (FIGS. 6 and 7).

  In addition to the above configuration, the third embodiment includes a spring member 231 that generates a spring repulsive force that opposes the upward movement of the floating outer cylinder portion 226, as shown in FIGS.

  Although not shown in the explanatory view (FIG. 1) of the first embodiment, the multi-stage telescopic middle rod 10 by the nested pipe is usually positioned and held in its extended state, as shown in FIGS. A spring-operated and push-release type automatic lock pin 101 is provided at a connection position between the element pipes 10a to 10d.

  Since this lock pin 101 is well known in this type of telescopic rod of a nested pipe type, detailed illustration is omitted, but it protrudes from the inner element pipe so as to be able to advance and retreat sideways, and is inserted into a small hole in the outer element pipe. Both pipes are restrained to lock each other.

  This locked state can be easily released by pushing the lock pin 101 protruding sideways with a finger or the like. It can also be automatically released by pushing down the lower roll 22 with a certain force.

  Since the locking pin 101 is automatically projected and retracted, it usually does not hinder the opening and closing operation of the umbrella. However, when the positioning lock state by the lock pin 101 is further ensured or when the lock pin 101 is manually pushed and released easily, the lock pin 101 protrudes slightly to the side of the element pipes 10a to 10c. It may become a form to do.

  Also in this case, the lock pin 101 is provided so that it can be automatically released by pushing down the lower rocker 22 with a certain force or more. However, when the lower rocker 22 is moved downward, the floating outer cylinder portion is provided. 226 may hit the lock pin 101 and move upward of the lower cylindrical portion 222.

  When the floating outer cylinder part 226 moves upward, the variable mechanism (224, 225, 227) is activated to reduce the fitting hole diameter of the lower cylinder part 222, so that the lower cylinder part 222 moves the middle rod 10 down. There may be a kind of locked state that cannot be moved by being pinched. This locked state can be easily released by slightly pushing up the lower block 22, but the smoothness of the operation of moving the lower block 22 downward is hindered.

  However, in the third embodiment, since the spring member 231 that generates a spring repulsive force that opposes the upward movement of the floating outer cylinder portion 226 is provided, the lock pin 101 hits the lower end of the floating outer cylinder portion 226. Also, the spring repulsive force of the spring member 231 acts so as to prevent the floating outer cylinder portion 226 from moving upward.

  The spring member 231 has a spring force such that the spring repulsive force overcomes the protruding spring force of the lock pin 101 and the lock pin 101 is automatically pushed and released.

  Thereby, when the lower roller 22 is pushed down, the floating outer cylinder portion 226 can continue to be kept in a state where it is pushed down by the spring member 231, that is, in a state where the fitting hole diameter of the intermediate rod 10 is widened.

  Therefore, as shown in FIGS. 8A, 8B, and 8C, the lower roller 22 smoothly slides downward while being sequentially pushed in without being blocked by the lock pin 101. be able to. That is, the occurrence of the locked state can be reliably prevented.

  As described above, in the folding umbrella of the third embodiment, the locking and holding in the opened state can be stabilized, and the opening / closing operation of the umbrella by the operation of the lower rocker 22 can be smoothly smoothed.

  As mentioned above, although this invention was demonstrated based on the typical Example, this invention can have various aspects other than having mentioned above. For example, the cross-sectional shape of the middle bar 10 may be a circle or a polygon other than a rectangle other than a substantially rectangle. The middle rod 10 can be composed of a plurality of nested pipes of two or more stages.

  Further, the present invention can be applied to systems other than the topless type in which the folding umbrella bone 40 is used, for example, a hook type as shown in FIG.

  In the folding umbrella provided with a multistage telescopic middle rod using a nested pipe, the locking and holding in the opened state can be stabilized.

It is a partially omitted side view showing an outline of a folding umbrella constituting the first embodiment of the present invention. It is a longitudinal cross-sectional view which shows the structure of the lower rotation which makes the principal part of 1st Embodiment. It is a longitudinal cross-sectional view which shows the fitting state of the lower roller and center bar in 1st Embodiment. It is a principal part longitudinal cross-sectional view of the folding umbrella which makes 2nd Embodiment of this invention. It is a partially-omission side view which shows the outline | summary of the folding umbrella which makes 3rd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the structure of the lower roll which makes the principal part of 3rd Embodiment. It is a longitudinal cross-sectional view which shows the fitting state of the lower roller and center bar in 3rd Embodiment. It is a side view which shows operation | movement of the principal part in 3rd Embodiment. It is a partially omitted side view showing an outline of a conventional folding umbrella. It is a cross-sectional view which shows the fitting state of the conventional lower loft and the center rod.

Explanation of symbols

10 Center rod, 10a-10d Element pipe, 101 Lock pin,
11 stone bumps, 12 hands, 13 reptiles, 131 springs, 132 hinges,
15 Umbrella cloth, 21 upper roll, 22 lower roll,
220 pivot part, 221 upper cylinder part, 222 lower cylinder part, 223 slitting,
224 movable piece, 225 projection part, 226 idle outer cylinder part, 227 cam part,
228 Movable member, 231 Spring member 40 Foldable umbrella bone, 41 Original master bone, 42 Middle master bone, 43 Prior master bone,
45,46 bone receiving, 47 auxiliary bone, 51,53 wire-like linkage,
52 Wire spring (Spring straight line)

Claims (6)

  A multistage telescopic center rod made up of nested pipes in which multiple element pipes with different diameters are slidably fitted in order of diameter, an upper rocker fixed above the center rod, and the center rod It has a lower crochet that fits in a movable manner, and a folding umbrella bone that is pivotally supported by the upper and lower crocuses to bend / extend as the lower crocus moves up and down. In the folding umbrella in which the repelling that is releasably locked from below is provided on the upper side of the middle rod, the lower rocker has a variable mechanism that reduces the diameter of the fitting hole with the middle rod at the position where the repelling is engaged. Folding umbrella characterized by having.   In claim 1, the lower lokuro has a lower cylinder part connected under the pivot part that pivotally supports the folding umbrella bone, and an idler outer cylinder part fitted to the lower cylinder part so as to be vertically movable, A movable piece that is elastically deformable in the radial direction is formed on the lower cylinder portion, while a cam portion that presses the movable piece toward the middle rod side at the upward movement position is formed on the floating outer cylinder portion. A characteristic folding umbrella.   3. The folding umbrella according to claim 2, wherein the movable piece is formed integrally with the lower cylinder portion by providing a cut in the lower cylinder portion.   In claim 1, the lower rocker is provided with a movable member that is urged elastically toward the middle rod side and moves back and forth in the radial direction while elastically contacting the middle rod, so that the fitting hole diameter with the middle rod is increased. A folding umbrella that changes according to the outer diameter of the middle bar.   The folding umbrella according to any one of claims 1 to 4, wherein each of the lower rockers has a cylindrical portion connected to an upper portion and a lower portion of the pivot portion. 6. The multistage telescopic middle rod according to any one of claims 1 to 3, wherein a plurality of element pipes having different diameters are slidably fitted in a diameter order while being slidable in a radial order, and a spring is operated and a push-in release is performed. It is configured so that the extended state is positioned and held by a self-locking pin of the type, and the lower rocker is connected to the lower cylinder part under the pivot part that pivotally supports the folding umbrella bone, and the lower cylinder part up and down. A floating outer cylinder portion that is movably fitted, a variable mechanism that reversibly reduces a fitting hole diameter with respect to the middle rod of the lower cylinder portion by the upward movement of the floating outer cylinder portion, and an upward movement of the floating outer cylinder portion And a spring member that generates a spring repulsive force.

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