JP2012115423A - Umbrella - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an umbrella in which umbrella opening operation and umbrella closing operation using a single hand become possible in a simple structure.SOLUTION: The umbrella 1 includes a lower ring 5 and upper ring 7 pivotally attached to the bases of each rib 4 and each stretcher 6, and a main shaft part 10 including an interior pole 14 which is fixed to the upper ring 7 in the upper part, and a circular pipe (movable member) 15 which is connected to the lower ring 5 in the upper part and is slidably inserted outside of the interior pole 14. In the umbrella 1 having such a structure, the upper ring 7 is fixed in the main shaft 10 while the lower ring 5 is made movable along the central axis AX. Then, at the opening/closing motion of the umbrella 1, in response to the umbrella closing operation (umbrella opening operation) to an operation part provided in the lower part of the umbrella 1, the circular pipe 15 which extends toward the operation part from the lower ring 5 is driven in the direction in which the lower ring 5 approaches (separates from) the upper ring 7. Consequently, the umbrella opening operation and umbrella closing operation using a single hand become possible in a simple structure.

Description

  The present invention relates to an umbrella having a main shaft portion that extends from a grip portion along a central axis.

  Some umbrellas, such as rain umbrellas and parasols, can be used not only for opening but also for closing when the other hand holding the umbrella is holding a baggage or injured. If there is, it is convenient.

  Regarding such an umbrella, for example, a technique disclosed in Patent Document 1 has been proposed. According to this technique, the main bone, the fulcrum pivoted to the middle part of the parent bone, and the phalange pivoted to the middle part of the skeleton, and the upper, middle, and lower The upper and lower rockers can be dispersed and moved in the vertical direction with respect to the medium rocker fixed to the middle bar. With such a configuration, the moving distance (opening / closing stroke) of the lower rock required for the opening / closing operation of the umbrella is shortened, and the opening operation and the closing operation can be performed within a range that can be performed with one hand.

Japanese Patent Laid-Open No. 6-30813

However, according to the technique of the above-described Patent Document 1, a structure that includes three lokuros and that can move the upper and lower rokuro is required, and thus the structure is complicated. This leads to an increase in manufacturing cost.

  The present invention has been made in view of the above problems, and an object thereof is to provide an umbrella that can be opened and closed with one hand with a simple structure.

  In order to solve the above-mentioned problems, the invention of claim 1 is an umbrella having a main shaft portion extending from a grip portion along a central axis, and a support connected to a midway portion of a main bone that is expanded when the umbrella is opened. From the upper part to which the bone is pivoted, the lower part to which the main bone is pivoted and arranged in the main shaft part in the direction of the grip part from the upper part, from the midway part to the tip of the main bone The upper cloth and the lower rocker are provided with an umbrella cloth attached to the section and the support bone, and an operation unit for receiving an umbrella operation and an umbrella operation related to switching between the opened state and the closed state. The main shaft portion functions as a fixed rocker, one of which is fixed, and the other as a movable rocker capable of moving along the central axis, and in response to the closing operation, from the movable rocker to the operation unit Can be distracted towards Members, one for driving in a direction in which the movable runner approaches the fixed runner, in response to the Hirakikasa operation, the movable member is movable runner, characterized in that to drive in a direction away from the fixed runner.

  According to a second aspect of the present invention, the umbrella according to the first aspect of the present invention further includes an elastic member that urges the movable member in a predetermined direction along the central axis, and the operation portion includes the opening of the umbrella. A first operating member and a second operating member for receiving the operation and the closing operation, wherein the movable member is moved in the predetermined direction by the biasing force of the elastic member in response to the operation on the first operating member; While being driven, the movable member is driven in an opposite direction to the predetermined direction by an operation force applied to the second operation member in conjunction with an operation on the second operation member.

  According to a third aspect of the present invention, in the umbrella according to the first aspect of the present invention, the operation portion uses an operation member connected to the movable member and a predetermined elastic member, and the umbrella state is changed from the closed state to the opened state. And a toggle mechanism that holds the movable member at both ends of the drive range of the movable member, and interlocks with the opening operation with respect to the operation member, and the movable member has both ends of the drive range at the toggle mechanism. The movable member is driven from the other end to the one end in the toggle mechanism in conjunction with the closing operation of the operation member while being driven from one end to the other end.

  According to the first to third aspects of the present invention, one of the upper rocker to which the supporting bone connected to the middle part of the main bone is pivotally attached and the lower rocker to which the main bone is pivotally attached is fixed at the main shaft part. As the fixed rocker, the other functions as a movable rocker that can move along the central axis, and in response to the closing operation, a movable member that extends from the movable rocker toward the operation unit is moved to the fixed rocker. While driving in the approaching direction, the movable member is driven in a direction in which the movable rocker moves away from the fixed rocker in response to the opening operation. Thereby, the opening operation and the closing operation with one hand can be performed with a simple structure.

  In particular, in the second aspect of the invention, the movable member is driven in a predetermined direction along the central axis by the biasing force of the elastic member in response to the operation on the first operation member, while the second operation member Since the movable member is driven in the direction opposite to the predetermined direction by the operation force applied to the second operation member in conjunction with the operation, an appropriate combination of simple one-touch operation and reliable manual operation can be used. Opening and closing operations are possible.

  Further, in the invention of claim 3, in conjunction with the opening operation for the operation member connected to the movable member, it is movable at both ends of the driving range from the closed state to the opened state using a predetermined elastic member. In the toggle mechanism that holds the member, the movable member is driven from one end to the other end on both ends of the drive range, while the movable member is driven from the other end to the one end in conjunction with the closing operation on the operation member. Therefore, the operation burden can be reduced in the opening operation and the closing operation.

1 is an external view showing a main configuration of an umbrella 1 according to a first embodiment of the present invention. 1 is an external view showing a configuration of a main part of an umbrella 1. FIG. It is a figure for demonstrating the open umbrella state which concerns on the umbrella. It is a figure for demonstrating the closed umbrella state which concerns on the umbrella. It is a figure for demonstrating opening / closing operation | movement of the umbrella. FIG. 3 is a diagram illustrating a configuration of a circular pipe portion 15. It is a figure which shows the structure of the umbrella 9 as a comparative example. It is an external view which shows the principal part structure of the umbrella 1A which concerns on 2nd Embodiment of this invention. It is an external view which shows the principal part structure of the umbrella 1A. It is a figure for demonstrating opening / closing operation | movement of the umbrella 1A. It is the figure which looked at the operating lever 21 in the closed state from the upper direction. It is a figure for demonstrating the operation part 20B of the umbrella 1B which concerns on 3rd Embodiment of this invention. It is a figure for demonstrating the structure of the operation part 20C which concerns on the modification of this invention. It is a figure for demonstrating the structure of operation part 20D which concerns on another modification.

<First Embodiment>
<Main part of umbrella>
1 and 2 are external views showing the main configuration of the umbrella 1 according to the first embodiment of the present invention. FIG. 1 shows a state in which the umbrella bone is unfolded and the umbrella 1 is opened (hereinafter also referred to as “open umbrella state”), and FIG. 2 is a state in which the umbrella 1 is closed (hereinafter also referred to as “closed umbrella state”). ). In FIG. 1 and subsequent figures, in order to clarify the directional relationship, an XYZ orthogonal coordinate system in which the Y-axis direction is the central axis direction of the umbrella 1 is attached as necessary.

  The umbrella 1 includes a main shaft portion 10 having a bar shape, a stone protrusion 2 connected to the upper end portion of the main shaft portion 10, and a hand 3 connected to the lower end of the main shaft portion 10. This hand 3 has a “J” -shaped outer shape and functions as a gripping part that is gripped by a hand.

  An operation unit 20 is provided at the lower part of the umbrella 1 to accept the closing operation and the opening operation for switching between the opening state and the closing state. The operation unit 20 is configured to slide the repellent 11 into the main shaft 10 by pushing operation and slide the umbrella button 12 to move from the closed state to the opened state and the direction of the stone bump 2 (+ Y direction). And a closed handle 13 for shifting the opened state to the closed state.

  In the upper part of the main shaft portion 10, there is a lower lokuro (lower lokuro) 5 configured as a main bone support to which a base end (root) of the main bone (main bone) 4 that is expanded when the umbrella is opened is pivotally attached, and the middle of the main bone 4 And an upper crocus (upper crocus) 7 configured as a fulcrum support to which a proximal end of a fulcrum (supporting bone) 6 pivotally connected to a dowel 8 arranged in the section is pivotally attached. . Here, the upper rocker 7 is fixed to the upper end portion of the main shaft portion 10, while the lower rocker 5 disposed in the direction of the hand 3 (−Y direction) from the upper wheel 7 in the main shaft portion 10 is an umbrella handle 13. It is possible to slide in the Y-axis direction in conjunction with the operation on. That is, the upper roll 7 and the lower roll 5 function as fixed rolls in which one is fixed in the main shaft portion 10, and the other can move along the central axis AX (see FIGS. 3 and 4) of the umbrella 1. Functions as a movable rocker. Due to the change in the separation distance between the upper block 7 and the lower block 5, the umbrella 1 can be switched between the opened state (FIG. 1) and the closed state (FIG. 2). Below, the opening / closing operation | movement of the umbrella 1 is demonstrated in detail using FIGS.

  FIG. 3 is a diagram for explaining the opened state of the umbrella 1, and FIG. 4 is a diagram for explaining the closed state of the umbrella 1.

  The main shaft portion 10 extends from the hand 3 (FIG. 1) along the central axis AX of the umbrella 1 toward the stone protrusion 2 provided at the pointed end portion of the umbrella 1, has a cylindrical outer shape, and has an upper end on the upper side. An intermediate rod 14 connected to the rocker 7 and a circular pipe portion 15 having a circular tubular shape and slidably inserted with respect to the intermediate rod 14 are provided. With respect to the circular pipe portion 15, for example, the upper end portion and the lower end portion of the circular pipe portion 15 are partially brought into contact (sliding) with the middle rod 14 to reduce the frictional resistance during sliding and are relatively small. It is preferable to enable smooth movement even with driving force.

  The middle rod 14 and the circular tube portion 15 are formed of a metal such as aluminum, for example. The circular tube portion 15 has a lower rocker 5 fixed to the upper end thereof, and can move in the Y-axis direction (vertical direction) in conjunction with an operation on the umbrella handle 13 (FIG. 1). Yes.

  Since the circular pipe portion 15 can be relatively moved in the vertical direction with respect to the middle rod 14 in this way, the upper loft 7 and the lower rokuro 5 that are separated by the distance L in the opened state of FIG. It becomes possible to make them close. That is, when the circular pipe portion 15 is driven in the Y-axis direction by a distance corresponding to the distance L, switching between the opened state and the closed state can be performed.

  Here, with respect to the stroke of the circular tube portion 15 necessary for the opening / closing operation of the umbrella 1 (hereinafter also referred to as “opening / closing stroke”), the upper bone 7 to which the support frame 6 is connected is connected to the main bone 4 as in the present embodiment. Thus, the opening / closing stroke can be shortened by providing the upper part of the lower part 5 and moving the lower part 5 toward the upper part 7 during the closing operation. In the opened state, the angle θa of the main bone 4 with respect to the main shaft portion 10 and the angle θb of the support 6 are made acute, and the angle θb of the support 6 is made smaller than the angle θa of the main support 4, thereby opening and closing more effectively. Stroke is reduced. The effect of reducing the opening / closing stroke will be described in detail later.

  In the umbrella 1 having the above-described configuration, the umbrella is provided in the middle part of the main bone 7 from the dowel 8 to the tip (dew) 41 and the entire region of the support 6 (from the dowel 8 to the proximal end of the support 6). A cloth (cover) Ea (shaded portion in FIG. 1) is attached. In FIG. 1, for convenience of illustration, a part of the umbrella cloth in the umbrella 1 is represented by a shaded portion. Here, the height of the main bone 4 (in the Y direction) is gradually increased from the dowel 8 to the tip 41 like the tapered shape Kd shown in FIG. It is preferable to reduce (width).

<Opening and closing operation of umbrella 1>
Next, the switching operation (opening / closing operation) between the opened state (FIG. 1) and the closed state (FIG. 2) of the umbrella 1 will be described in detail.

  FIG. 5 is a diagram for explaining the opening / closing operation of the umbrella 1. Here, FIG. 5A and FIG. 5B show cross-sectional views of the vicinity of the operation unit 20 and show a closed state and an opened state. FIG. 6 is a diagram showing the configuration of the circular pipe portion 15 and shows an external view seen from the (+ X) direction.

  As shown in FIG. 6, in the circular pipe portion 15 slidable on the middle rod 14 fixed to the hand 3, the lower rocker 5 is fixed to the upper end, and the closed handle 13 is connected to the lower end via the cylindrical portion 16. Has been. Note that the vertical groove 5a and the horizontal groove 5b of the lower roller 5 shown in FIG. 6 are a vertical groove into which the base end of the main bone 4 is fitted and a linear member (for example, a wire) that forms a rotation axis at the base end of the main bone 4. Is formed as a lateral groove for installing.

  The circular pipe portion 15 includes a slit 15a for locking and holding a repellency (locking claw) 11 installed on the center rod 14 in the closed state, and an opening button 12 protruding from the center rod 14. A slit 15b for inserting the arm portion 12a is formed along the Y-axis direction. In addition, in the internal space of the circular tubular center rod 14, the arm portion 12a and the repellent 11 of the opening button 12 are connected by a connecting member 11a as shown in FIG. The elastic member 11 b is connected to the repellent 11. With such a configuration, the repellent 11 is urged in the direction protruding from the middle bar 14 (+ X direction), while the repellent 11 can be immersed in the middle bar 14 by pushing the opening button 12. The repellant 11 can be freely engaged and disengaged with respect to the slit 15 a of the circular pipe portion 15.

  In addition, the umbrella 1 has a casing (casing) 17 having a stepped columnar outer shape and housing a lower portion of the main shaft portion 10 including the cylindrical portion 16, and a compression coil spring 18 stored inside the casing 17. I have.

  The lower end of the housing 17 is fixed to the upper surface 3 u of the hand 3. The housing 17 has a circular hole 17h through which the main shaft portion 10 is inserted, and an umbrella handle that extends from the cylindrical portion 16 to the outside of the housing 17 and can move in the vertical direction (Y-axis direction). A rectangular hole 17g for inserting thirteen arm portions 13a is formed. The rectangular hole 17g is formed at the position indicated by the broken line in FIG. 6 in the opened state, and guides the arm 13a of the closed handle 13 that moves in the (+ Y) direction during the closed operation. It has become.

  The compression coil spring 18 has a lower end connected to the upper surface of the cylindrical portion 16 and an upper end connected to the inner wall upper surface 17 u of the housing 17. The compression coil spring 18 functions as an elastic member that biases the circular pipe portion 15 in the downward direction (−Y direction) along the central axis AX via the cylindrical portion 16.

  The opening / closing operation | movement of the umbrella 1 which has the above structures is demonstrated below.

  First, in the closed state, as shown in FIG. 5A, the repellant 11 protrudes and is locked from the slit 15a, and the cylindrical portion 16 is moved by the compression coil spring 18 in a compressed state in which a constant urging force is stored. It is biased downward (−Y direction).

  In such a closed state, the user can move to the opened state by operating the opened button 12. Specifically, as the repellent 11 is immersed in the center rod 14 with the pushing operation of the opening button 12 and the locked state is released, the stored biasing force of the compression coil spring 18 is released, Due to the urging force, the cylindrical portion 16 and the circular tube portion 15 are pushed down and moved along the intermediate rod 14. Then, when the lower end of the cylindrical portion 16 comes into contact with the upper surface 3u of the hand 3 that functions as a stopper that restricts the movement of the cylindrical portion 16, the downward movement is completed, and the state changes to the opened state shown in FIG. . That is, a circular pipe portion as a movable member that extends from the lower part (movable part) 5 toward the operation part 20 in response to (responds to) the opening operation to the opening button (first operation member) 12. 15 is driven using the urging force of the compression coil spring 18 in the direction (-Y direction) below the direction where the lower rock 5 is separated from the upper rock (fixed rock) 7 (detachment direction). Switching to the umbrella state is performed. Accordingly, an appropriate opening operation can be performed with a simple one-touch operation on the opening button 12.

  In the opened state, the compression coil spring 18 is in a state of being expanded from the opened state shown in FIG. 5A, but has a downward biasing force on the cylindrical portion 16 and the circular tube portion 15. This urging force is a force necessary to stably maintain the opened state (FIG. 1), and when a relatively large external force acts on the umbrella cloth (cover) (an umbrella cloth that has become heavy due to water droplets). Even when the wind is blown by the wind, a force that does not allow the lower end of the cylindrical portion 16 to separate from the upper surface 3u of the hand 3 is required.

  In such an opened state, the closed handle 13 can be operated to move to the closed state. Specifically, against the biasing force of the compression coil spring 18 described above, an operation of pushing up the umbrella handle 13 with a thumb or the like is performed upward (+ Y direction) in the direction opposite to the direction of the biasing force. A transition is made to the closed state shown in 5 (a), that is, the state where the repellent 11 protrudes from the slit 15a and is locked. That is, in conjunction with the closing operation of the umbrella handle (second operation member) 13, the circular pipe portion (movable member) 15 is moved to the lower block (movable block) 5 and the upper block (fixed block) 7. Switching from the opened state to the closed state is performed by driving with the operating force applied to the closed handle 13 above the approaching direction (the approaching direction) (+ Y direction). Thereby, an appropriate closing operation can be performed by a reliable manual operation with respect to the closing handle 13.

  In the umbrella 1 that can perform the opening / closing operation as described above, the opening operation and the closing operation with one hand can be performed with a simple structure including two rockers (the lower rocker 5 and the upper rocker 7).

  Further, in the umbrella 1, the support bone (supporting bone) 6 is disposed above the parent bone 5, so that the supporting bone such as the receiving bone is disposed below the parent bone 5 as compared with the conventional umbrella in which the supporting bone is disposed below the parent bone. Space can be expanded.

  In the umbrella 1 of the present embodiment, as shown in FIG. 3, the main bone 4 is pivotally attached to the lower rocker 5, and the angle θa of the main bone 4 with respect to the main shaft portion 10 and the angle θb of the support 6 are made acute angles in the opened state. Although the opening and closing stroke of the circular pipe portion 15 is reduced by this, a comparative example in the case where this technical idea is applied to the configuration of an umbrella according to the prior art (a configuration in which the main bone is pivotally attached to the upper loft) will be considered below. To do.

  FIG. 7 is a diagram illustrating a configuration of an umbrella 9 as a comparative example. This figure corresponds to FIG. 3 showing the configuration of the present embodiment.

  In the umbrella 9 as a comparative example, an upper rock 92 to which the base end of the main bone 91 is pivotally attached is fixed to the main shaft portion 90, while a lower rocker 94 to which the proximal end of the support frame 93 is pivotally attached is the main shaft portion 90. It can slide. In addition, in the opened umbrella 9, the distance between the upper block 92 and the lower block 94 is set to L in order to equalize the conditions with the umbrella 1 (FIG. 3) of the first embodiment, and the lower block 94 and the upper block 92. The angles of the umbrella bone with respect to the main shaft portion 90 extending from the angle are θa and θb. Even with such an umbrella 9, if the lower rocker 94 is moved so as to be close to the upper rocker 92, the closing operation can be performed.

  However, in the configuration of the umbrella 9, the angle θa of the main bone 4 of the first embodiment can be obtained only by separating the upper and lower pockets 92 and 94 by the same distance L as the umbrella 1 of the first embodiment shown in FIG. Accordingly, the angle θb of the main bone 91 is reduced. This is because the rotation center of the main bone 91 in the umbrella 9 is the upper rock 92 (near the main shaft portion 10), whereas the rotation center of the main bone 4 in the first embodiment is separated from the main shaft portion 10 (FIG. 3). ). Therefore, in order to realize the angle θa of the main bone 4 similar to that of the first embodiment with the umbrella 9, the movement of the lower rocker 94 larger than the interval L is required. This means an increase in the opening / closing stroke, and the configuration of the first embodiment is superior to the umbrella 9 on the extension line of the prior art. Further, in the umbrella 1 of the first embodiment, since the rotation center (the dowel 8) of the main bone 4 is separated from the main shaft portion 10 as described above, compared to the umbrella 9 having the rotation center of the main bone 91 in the upper loft 92. As a result, the rotational moment with respect to the parent bone is reduced, and the driving force of the lower rocker 5 (circular tube portion 15) when the parent bone 4 is deployed can be reduced.

  As described above, in the umbrella 1 according to the first embodiment, the opening / closing stroke of the circular pipe portion 15, that is, the amount of operation of the umbrella handle 13 can be effectively reduced. The driving amount (and driving force) of the closed handle 13 can be ensured.

Second Embodiment
<Main part of umbrella>
8 and 9 are external views showing the main configuration of an umbrella 1A according to the second embodiment of the present invention. FIG. 8 shows an opened state of the umbrella 1A, and FIG. 9 shows a closed state of the umbrella 1A. 8 to 9, the same reference numerals are assigned to the parts having the same configuration as that of the first embodiment.

  Umbrella 1A of 2nd Embodiment has the structure similar to umbrella 1 of 1st Embodiment, performs the operation | movement similar to 1st Embodiment demonstrated using FIGS. The state can be switched, but the configuration of the operation unit is different from that of the first embodiment.

  That is, the operation unit 20A of the umbrella 1A includes an operation lever (operation member) 21 for opening and closing the umbrella 1A instead of the opening button 12 and the closing handle 13 of the first embodiment. The opening / closing operation of the umbrella 1A using the operation unit 20A will be described below.

<Opening and closing operation of umbrella 1A>
FIG. 10 is a diagram for explaining an opening / closing operation of the umbrella 1A. Here, FIG. 10A and FIG. 10B are cross-sectional views of the vicinity of the operation unit 20A, and show a closed state and an opened state. FIG. 11 is a view of the operation lever 21 in the closed state shown in FIG. 10A as viewed from above (+ Y direction).

  The main body portion 21a of the operating lever 21 inserted through the rectangular hole 17j of the housing 17A has a semi-elliptical cutout portion 21e formed at the front end portion and rectangular cutout portions 21f and 21g on both sides of the rear end portion. Has a plate-like shape. The distal end portion of the main body portion 21a bifurcated by the notch portion 21e is pivotally connected to cylindrical rotary shafts 15p and 15q extending in the Z-axis direction from the circular tube portion 15, so that the operation lever 21 is a circular tube. The part 15 is pivotally connected. Further, the operation lever 21 is provided with columnar rotating shafts 21s and 21t extending in the Z-axis direction near the intermediate position of the main body 21a, and the X-axis direction formed in the housing 17A for housing the main body 21a. The slit 17s is slidably fitted (freely fitted).

  In the operation lever 21, two leaf springs 22 are brought into contact with a stepped portion (concave portion) of the main body portion 21a formed by the notches 21f and 21g. The leaf spring 22 has a “U” shape in a side view, and both ends 22e thereof are fixed to the housing 17A. The leaf spring 22 biases the rotary shafts 21s and 21t along the slit 17s in the (−X) direction.

  In the operation unit 20A having the above-described configuration, the rotation shafts 21s and 21t of the operation lever 21 are positioned at the end of the slit 17s on the main shaft unit 10A side (the −X direction side), that is, FIG. 10A and FIG. A mechanism such as a toggle switch that is stable in the two states of the operation lever 21 shown in FIG. 10B is formed. That is, using leaf springs 22 that act as elastic members, both ends of the driving range (driving range) Dr (FIG. 10 (a)) of the circular tube portion 15 from the closed state to the opened state, that is, FIG. 10 (a). A toggle mechanism TG that statically holds the circular pipe portion (movable member) 15 is formed at both the closed position Pa shown and the open position Pb shown in FIG.

  Therefore, in the closed state shown in FIG. 10 (a), if the operation lever 21 is pushed upward (opening operation) in the upward direction Ha to exceed the intermediate point Md, the opened state shown in FIG. 10 (b). Will be transferred to. On the other hand, in the opened state shown in FIG. 10 (b), if the operation lever 21 is pushed down (closed operation) in the downward direction Hb beyond the intermediate point Md, the closed state shown in FIG. 10 (a). Migrate to

  That is, in conjunction with the opening operation with respect to the operation lever 21, the circular pipe portion from the closed position (one end) Pa to the opened position (other end) Pb with respect to both ends of the drive range Dr shown in FIG. In the toggle mechanism TG, the circular tube portion 15 is driven from the opening position (other end) Pb to the closing position (one end) Pa in conjunction with the closing operation on the operation lever 21. Switching between the open state and the closed state is performed by the reciprocating drive of the circular pipe portion 15 in the drive range Dr.

  In the umbrella 1A that performs the opening and closing operation as described above, the opening operation and the closing operation with one hand can be performed with a simple structure as in the first embodiment.

  Further, in the umbrella 1A of the second embodiment, by adopting the operation unit 20A having a toggle mechanism, if the operation lever 21 is raised or lowered to about the middle point Md, the operation lever 21 is driven thereafter. Since it is assisted by the urging force of the leaf spring 22, a smooth operation on the operation lever 21 can be performed. As a result, the operation burden can be reduced in the opening operation and the closing operation.

<Third Embodiment>
An umbrella 1B according to the third embodiment of the present invention has the same configuration as the umbrella 1A of the second embodiment shown in FIGS. 8 to 9, but the configuration of the main shaft portion is different.

  That is, the main shaft portion 10B of the umbrella 1B is not configured such that the circular tube portion 15 is slidable with respect to the middle rod 14 fixed to the hand 3 as in the second embodiment, but the circular tube portion fixed to the hand 3 The intermediate rod 140 is slidable with respect to 150. Even in such a configuration, the relative distance between the lower rocker 5 fixed to the upper end of the circular pipe portion 150 and the upper rocker 7 fixed to the upper end of the center rod 140 can be changed. Switching to the closed state shown in FIG.

  In the umbrella 1B as described above, the configuration of the operation unit for sliding the center rod 140 with respect to the circular tube unit 150 is necessary. This configuration will be described below.

  FIG. 12 is a view for explaining the operation unit 20B of the umbrella 1B according to the third embodiment of the present invention. This figure corresponds to FIG. 10 showing the operation unit 20A of the second embodiment, and parts having the same configuration as in the second embodiment are given the same reference numerals. Here, FIG. 12A and FIG. 12B are cross-sectional views in the vicinity of the operation unit 20B, and show an opened state and an closed state. In the opened state and the closed state shown in FIG. 12, the state of the operation lever 21 is reversed with respect to FIG.

  The operation unit 20B includes a toggle mechanism TG and has a configuration similar to that of the operation unit 20A of the second embodiment. However, the distal end portion of the operation lever 21 bifurcated branches from the middle rod 140 in the Z-axis direction. The second embodiment is different from the second embodiment in that it is pivotally connected to a cylindrical rotating shaft 14q (14p) extending in the direction. And the slit 15s for inserting the rotating shaft 14q (14p) which protrudes from the center rod 140 is formed in the circular pipe part 150 along the Y-axis direction. The length of the slit 15s in the Y direction is the distance that the rotary shaft 14q (14p) is moved by the operation of the operation lever 21, in other words, the driving range Dv of the middle rod 140 from the closed umbrella state to the opened state (FIG. 12). This corresponds to (a)).

  With such a configuration of the operation unit 20B, if the operation lever 21 is operated in the upward direction Ha (closed umbrella operation) in the opened state shown in FIG. On the other hand, the middle bar 140 is pushed down to shift to the closed state shown in FIG. On the other hand, if the operation lever 21 is operated in the downward direction Hb (opening operation) in the closed state shown in FIG. 12B, the center rod 140 is pushed up with respect to the circular pipe portion 150, and FIG. ) Move to the opened state shown in).

  That is, in response to the closing operation with respect to the operation lever 21, the center rod (movable member) 140 extending from the upper block (movable block) 7 toward the operation unit 20B is used. While driving in the direction approaching 5), the center rod 140 is driven in the direction in which the upper block 7 is separated from the lower block 5 in response to the opening operation of the operation lever 21. Thereby, switching between the opened state shown in FIG. 3 and the closed state shown in FIG. 4 can be performed.

  In the umbrella 1B that performs the opening / closing operation as described above, as with the second embodiment (and the first embodiment), the opening operation and the closing operation with one hand can be performed with a simple structure.

<Modification>
-In the operation part in said 1st Embodiment, it is not essential to provide the compression coil spring 18 which urges | biases the circular pipe part 15 below, and the structure which is not provided with the compression coil spring 18 may be sufficient. This configuration will be described below with reference to FIG.

  FIG. 13 is a diagram for explaining a configuration of an operation unit 20C according to a modification of the present invention. FIG. 13 corresponds to FIG. 5 showing the operation unit 20 of the first embodiment.

The modified operation portion 20 </ b> C includes an opening / closing handle 25 connected to the lower end portion of the circular pipe portion 15. In the operation portion 20C, triangular prism-shaped locking members 171 and 172 are provided in the vicinity of the inner opening of the rectangular hole 17g of the housing 17C for inserting the opening / closing handle 25, and the locking members 171 and 172 are engaged. A possible cylindrical protrusion 251 extends in the Z-axis direction from the arm portion 25 a of the opening / closing handle 25. Here, the protrusion 251 is connected to a rod-like member 252 that is inserted into a hole 25h that passes through the center of the opening / closing handle 25, and the tip of the rod-like member 252 is connected to an elastic member 253 such as a compression coil spring.
It is biased in the (+ X) direction.

  In the opening / closing handle 25 having such a configuration, the protrusion 251 engages with the locking member 171 or the locking member 172 as shown in FIG. It is possible to maintain the closed state and the opened state shown in FIG. Here, when it is desired to shift from the closed state to the opened state, the open / close handle 25 is moved downward (−Y direction) while pushing the rod-like member 252 to release the engagement between the locking member 171 and the protrusion 251. It will be sufficient to operate. Similarly, when it is desired to shift from the opened state to the closed state, the opening / closing handle 25 is operated upward (+ Y direction) while pushing the rod-shaped member 252 to release the engagement between the locking member 172 and the protrusion 251. Just do it.

  Even with the operation unit 20C having the simple configuration as described above, it is possible to appropriately perform the opening operation and the closing operation as in the first embodiment.

  Moreover, you may make it apply the structure like said operation part 20C to the umbrella 1B of 3rd Embodiment. This configuration will be described below with reference to FIG.

  FIG. 14 is a diagram for describing a configuration of an operation unit 20D according to another modification. This figure corresponds to FIG. 13 showing the operation unit 20C described above.

  Since the umbrella 1B of the third embodiment has a configuration in which the middle bar 140 is slid with respect to the circular pipe part 150, the arm part 25a of the opening / closing handle 25 is attached to the middle bar 140 in the operation part 20D. And the slit 15t for inserting this arm part 25a is formed in the circular pipe part 150 along the Y-axis direction.

  Even with the operation unit 20 </ b> D having such a simple configuration, it is possible to appropriately perform the opening operation and the closing operation as in the third embodiment.

  In the operation portion 20 in the first embodiment, it is not essential to urge the circular tube portion 15 downward (−Y direction) via the cylindrical portion 16 by the compression coil spring 18. May be biased upward. Further, it is not essential to urge the circular pipe portion 15 with the compression coil spring 18, and it may be urged using an elastic member such as a leaf spring.

  In the operation portion 20A (20B) in the second embodiment (and the third embodiment), it is not essential to bias the operation lever 21 with the leaf spring 22 toward the main shaft portion 10A (10B). The operation lever 21 may be urged by an elastic member such as a coil spring.

  Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

1,1A, 1B Umbrella, 3 Hands, 4 Parentbone, 5 Lower roll, 6 Support bone, 7 Upper roll, 10, 10A-10D Spindle, 11 Repel, 12 Open button, 13 Closed handle, 14, 140 Middle Bar, 15,150 circular pipe part, 15a, 15b slit, 15s, 15t slit, 16 cylindrical part, 17, 17A, 17C housing, 17g, 17j rectangular hole, 18 compression coil spring, 20, 20A-20D operation part, 21 Operation lever, 22 Leaf spring, 25 Opening / closing handle.

In order to solve the above-mentioned problem, the invention of claim 1 is an umbrella having a main shaft portion that extends from a grip portion along a central axis, and is arranged in the middle portion of the main bone that is expanded when the umbrella is opened . An upper loft on which a support bone pivotally connected to a dowel is pivotally attached; a lower lokuro on which the main bone is pivotally attached and arranged in the main shaft portion in the direction of the gripping portion; and An umbrella cloth attached to the section from the midway part to the tip of the main bone and the support bone, and an operation part for receiving an umbrella operation and an umbrella operation related to switching between an opened state and an opened state, The upper and lower rockers function as a fixed rocker, one of which is fixed in the main shaft portion, and the other as a movable rocker that can move along the central axis, and in response to the closing operation. From the movable lokuro A movable member extending toward the cropping part is driven in a direction in which the movable rocker approaches the fixed rocker, and in response to the opening operation, the movable member is moved in a direction in which the movable rocker moves away from the fixed rocker. It is characterized by being driven.

According to the first to third aspects of the invention, the upper loft on which the support bone pivotally connected to the dowel arranged in the middle of the main bone is pivotally attached, and the lower lokuro on which the main bone is pivotally attached. Functions as a fixed rocker, one of which is fixed at the main shaft part, and the other as a movable rocker that can move along the central axis, and extends from the movable rocker toward the operating part in response to the closing operation. While the movable member is driven in a direction in which the movable rocker approaches the fixed rocker, the movable member is driven in a direction in which the movable rocker moves away from the fixed rocker in response to the opening operation. Thereby, the opening operation and the closing operation with one hand can be performed with a simple structure.

In order to solve the above-mentioned problem, the invention of claim 1 is an umbrella having a main shaft portion that extends from a grip portion along a central axis, and is arranged in the middle portion of the main bone that is expanded when the umbrella is opened. An upper loft on which a support bone pivotally connected to a dowel is pivotally attached; a lower lokuro on which the main bone is pivotally attached and arranged in the main shaft portion in the direction of the gripping portion; and An umbrella cloth attached to the section from the midway part to the tip of the main bone and the support bone, and an operation part for receiving an umbrella operation and an umbrella operation related to switching between an opened state and an opened state, The upper and lower rockers function as a fixed rocker, one of which is fixed in the main shaft portion, and the other as a movable rocker that can move along the central axis, and in response to the closing operation. From the movable lokuro A movable member extending toward the cropping part is driven in a direction in which the movable rocker approaches the fixed rocker, and in response to the opening operation, the movable member is moved in a direction in which the movable rocker moves away from the fixed rocker. The amount of movement of the movable rocker required for the opening and closing operation of the umbrella corresponds to the amount of operation that can be performed with a predetermined finger in one hand that grips the grip portion, and the operation portion And a first operating member and a second operating member that receive the closing operation, and the movable member and the movable rocker are responsive to an operation on the first operating member and are biased by a predetermined elastic member. While being driven in a predetermined direction along the central axis, the movable member and the operation amount and the operation amount given by the operation of the predetermined finger on the second operation member are directly used. Characterized in that said movable runner said predetermined direction by being driven in the reverse direction, the it is possible to switch between open umbrella with said閉傘state.

The invention of claim 2 is an umbrella having a main shaft portion that extends from the grip portion along the central axis, and is pivotally connected to a dowel arranged in the middle portion of the main bone that is expanded when the umbrella is opened. An upper roll to which the connected supporting bone is pivoted, a lower roll to which the main bone is pivoted and arranged in the main shaft portion in a direction of the gripping portion, and the middle of the main bone An umbrella cloth attached to a section from the section to the tip and the support bone, and an operation section for receiving an umbrella operation and an umbrella operation related to switching between an opened umbrella state and an umbrella state, the upper roll and the The lower rocker functions as a fixed rocker, one of which is fixed in the main shaft portion, and the other as a movable rocker that can move along the central axis, and in response to the closing operation, Distracted from the operation part The movable member is driven in a first direction in which the movable rocker approaches the fixed rocker, and in response to the opening operation, the movable member is driven in a second direction in which the movable rocker is separated from the fixed rocker. The amount of movement of the movable rocker necessary for the opening and closing operation of the umbrella corresponds to the amount of operation that can be performed with a predetermined finger in one hand holding the gripping portion, and with respect to the operation portion by the predetermined finger. When the movable member and the movable rocker are driven in the first direction or the second direction by directly using the operation force and the operation amount given by the operation, the opened state and the closed state It is possible to switch between.

According to the first and second aspects of the present invention, the upper loft to which the support bone pivotally connected to the dowel arranged in the middle of the main bone is pivotally attached and the lower lokuro to which the main bone is pivotally attached. Functions as a fixed rocker, one of which is fixed at the main shaft part, and the other as a movable rocker that can move along the central axis, and extends from the movable rocker toward the operating part in response to the closing operation. While the movable member is driven in a direction in which the movable rocker approaches the fixed rocker, the movable member is driven in a direction in which the movable rocker moves away from the fixed rocker in response to the opening operation. Thereby, the opening operation and the closing operation with one hand can be performed with a simple structure.

In particular, in the first aspect of the invention, in response to an operation on the first operating member, the movable member and the movable rocker are driven in a predetermined direction along the central axis by the biasing force of the predetermined elastic member, The movable member and the movable rocker are driven in the direction opposite to the predetermined direction by directly using the operation force and the operation amount given by the operation with respect to the second operation member by the predetermined finger , thereby opening the umbrella. Therefore, it is possible to perform appropriate opening operation and closing operation by a combination of simple one-touch operation and reliable manual operation.

Claims (3)

An umbrella having a main shaft portion extending from the grip portion along the central axis,
Upper lokuro, to which a support bone connected to the middle part of the main bone expanded at the time of opening is pivotally attached,
The main bone is pivotally attached, and the lower rokuro which is arranged in the direction of the grip part from the upper rokuro in the main shaft portion,
An umbrella cloth attached to a section from the midway portion to the tip of the main bone and the support bone;
An operation unit for accepting the closing operation and the opening operation related to switching between the opening state and the closing state;
With
In the main shaft portion, the upper lokuro and the lower lokuro function as a fixed rokuro, one of which is fixed, while the other functions as a movable rokuro that can move along the central axis,
In response to the closing operation, a movable member extending from the movable rocker toward the operation part is driven in a direction in which the movable rocker approaches the fixed rocker,
In response to the opening operation, the movable member is driven in a direction in which the movable rocker moves away from the fixed rocker. The umbrella according to claim 1,
An elastic member for biasing the movable member in a predetermined direction along the central axis;
And further comprising
The operation unit is
A first operating member and a second operating member for receiving the opening operation and the closing operation;
Have
In response to an operation on the first operating member, the movable member is driven in the predetermined direction by the biasing force of the elastic member,
The umbrella characterized in that the movable member is driven in a direction opposite to the predetermined direction by an operation force applied to the second operation member in conjunction with an operation on the second operation member. The umbrella according to claim 1,
The operation unit is
An operation member connected to the movable member;
A toggle mechanism for holding the movable member at both ends of the drive range of the movable member from the closed state to the opened state using a predetermined elastic member;
Have
In conjunction with the opening operation on the operation member, while the movable member is driven from one end to the other end of the drive range in the toggle mechanism,
In conjunction with the closing operation on the operation member, the movable member is driven from the other end to the one end in the toggle mechanism.

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