JP4637814B2 - Recycling umbrella top - Google Patents

Description

  The present invention relates to a recycle umbrella which is not only easy to assemble at the time of manufacture but also easy to repair and disassemble, can be sorted by material, and can be reused. Is related to the structure of

  Usual umbrellas are made of metal members (center shaft, main bone, support bones, etc.) and non-metal members (hand, upper wheel, lower wheel, sheet, etc.) generally made of synthetic resin (hereinafter simply referred to as “resin”). Although configured, the members are connected permanently or in a state where disassembly is extremely difficult. In other words, the resin ladle is fixed to the metal shaft by a nail, and the connection between the resin ladle and the metal main bone is made by sequentially inserting wires (holding needles) into the holes formed in the root portion. After the base portion of the master bone is accommodated in the master bone receiving groove of the upper crossbone, the wire is wound around the outer peripheral groove of the upper crossbone and twisted at both ends of the wire.

  Therefore, the conventional umbrella not only takes time to assemble at the time of production, but when discarding a broken umbrella, it is difficult to separate and dispose of the metallic member and the non-metallic member, It made recycling of valuable resources difficult.

  In recent years, especially when environmental pollution issues have been highlighted, the number of local governments that require the separate disposal of umbrellas has increased, and there is a desire to facilitate the separate disposal of metallic and non-metallic components of umbrellas. Has been.

  Therefore, it is conceivable to adopt the structure disclosed in Patent Document 1 as a structure for removably attaching the upper handle to the middle shaft. In the attachment structure of the upper crossbone disclosed in Patent Document 1, the upper crosspiece is coaxial with a central shaft insertion hole and a flange formed radially with a plurality of main bone receiving grooves for receiving the root portion of the main bone. The cylindrical part above the flange of the upper part is provided with two opposing splits extending in the axial direction from the upper end toward the flange side and dividing the cylindrical part in two. A groove is formed, and a male screw is formed on the outer peripheral surface of the cylindrical portion. Further, on the inner peripheral surface of the cylindrical shaft's central shaft insertion hole, a pair of engaging projections engaged with the center shaft positioning holes are displaced by 90 ° around the axis with respect to the split groove. Are formed opposite to each other.

When a crossbone having such a configuration is inserted into the middle shaft from the upper end thereof in a state where the phase of the engagement projection and the upper shaft positioning hole of the middle shaft are aligned, the engagement projection comes into contact with the upper end of the middle shaft. Due to the presence of the groove, the cylindrical part is expanded and the engaging projection can be pushed further downward while sliding the engaging projection along the center axis, and the engaging projection engages in the center hole positioning hole. To do. And, the upper crosspiece is configured to be fixed to the center shaft by screwing a stone bump into the outer peripheral surface of the cylindrical portion having the male screw.
Japanese Utility Model Publication No. 53-124071

However, although the attachment structure of the above-mentioned top roller is easy to attach, it is difficult to remove it once the top plate is fixed to the center rod. Further, since the engagement protrusion is formed on the inner peripheral surface of the thin cylindrical portion provided with the male screw, there is a drawback that the resistance force in the rotation direction of the upper wheel with respect to the central shaft is weak.

  In view of the above circumstances, a first object of the present invention is to provide a recycle umbrella top that is not only easy to attach to the center shaft but also easy to remove.

  The second object of the present invention is to increase the resistance in the rotational direction of the upper wheel with respect to the central shaft.

  In the following description, the upper part or the upper part means the side of the umbrella and the lower part or the lower part means the hand side of the umbrella.

  An upper crossbone according to the present invention includes an upper crosspiece main body provided with an engagement protrusion engaged in an upper crossbone positioning hole of a middle shaft of an umbrella on an inner peripheral surface, and a plurality of main bone receiving grooves for receiving a root portion of the main bone. It is provided with an annular master pedestal support disk that is provided radially on the periphery and is fitted to the upper skull body.

  The upper crossbone main body includes a cylindrical portion on which the main pivot support disk is fitted to the outer peripheral surface from above, and a male screw connected to the upper portion of the cylindrical portion, and at least a part of the engaging protrusion is the cylindrical portion. It extends to the inner periphery of the part.

  Then, the master pivot support disk is fitted to the outer peripheral surface of the cylindrical portion of the top handle body in which the engagement protrusion is engaged with the center spindle positioning hole, and all the master bones are fitted to the master support disk. In a state where the root portion is pivotally supported, a fixing member is screwed onto the male screw from above, so that the upper crossbone body and the main pivot support disk are integrated and fixed to the middle shaft. It is characterized by being made.

  In the first embodiment of the present invention, the upper wheel body includes a pair of split grooves extending from the upper end thereof to at least the cylindrical portion along a plane including the axis. In that case, the upper lathe body includes a flange that is coaxially connected to the lower portion of the cylindrical portion and receives the skeleton support disk, the engaging protrusion extends to the inner periphery of the flange, and the split groove is It is preferable to extend below the flange.

  In the second embodiment of the present invention, the upper skull body is constituted by a pair of semi-cylindrical bodies divided into two along a plane including the axis.

  In both embodiments, the projecting shaft pivot groove for pivotally supporting the projecting shaft of the main bone provided with the projecting shaft serving as the pivot on the upper surface of the master bone supporting disc is orthogonal to the host bone housing groove. It is preferable to be formed.

  According to the present invention, at least a part of the engagement protrusion formed on the inner peripheral surface of the upper crossbone main body and inserted into the upper crossbone positioning hole of the middle shaft is the cylindrical portion which is the fitting portion of the main pivot support disk. By extending to the inner periphery, it is possible to increase the resistance force in the rotational direction of the upper wheel with respect to the center shaft. Then, by removing the fixing member, it is possible to easily separate the skull from the central shaft.

  Further, in the first embodiment of the present invention, the pair of split grooves formed in the upper crossbone main body extend at least to the cylindrical portion to which the master pedestal support disk is fitted. In the second embodiment, the above-mentioned main body is made up of a pair of semi-cylindrical bodies that are divided into two along the plane including the axis, so that it is very easy to separate the main body from the central shaft. Can do.

  Furthermore, since the main part of the upper part is composed of the upper part of the upper part of the crosspiece and the main pivot support disk, the production of the upper part of the upper part is markedly greater than when the upper part is composed of a single part. There is an advantage that becomes easier.

  Hereinafter, preferred embodiments of an umbrella top according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a part of the overall configuration in a closed state of an umbrella provided with an upper handle according to the first embodiment of the present invention.

  In FIG. 1, the umbrella 1 includes a metal center shaft (support) 2, a synthetic resin upper crosspiece 3 fitted and fixed to the upper end of the central shaft 2, and a root portion pivotally attached to the upper crosspiece 3. A plurality of metal main bones 4, a cloth or resin fabric (sheet) S stretched along the main bones 4, a Jinka 5 that fixes the upper ladle 3 together with the fabric S to the middle shaft 2, and the middle shaft 2 And a plurality of metal bottoms 6 that are slidably fitted to the base 6 and a plurality of metals that are pivotally attached to the bottoms 6 at their roots and at the point P in the middle of the main bone 4. A support bone 8 and a synthetic resin hand 10 fixed to the lower end of the central shaft 2 are provided. A stone bump 14 is fitted to the upper end of the middle shaft 2.

  Further, in the closed state of the umbrella 1, a metal clasp (flick) 12 for locking the lower skull 6 at a position close to the hand 10 is spring-biased in a direction protruding from the outer peripheral surface of the center shaft 2. In this manner, the central shaft 2 is provided so as to be freely movable.

  FIG. 2 is an exploded front view of the upper end portion of the umbrella 1 of FIG. In FIG. 2, the middle shaft 2 provided with a pair of upper scissors positioning holes 16 is shown rotated by 90 ° around the axis. The upper crossbone 3 is constituted by an upper crosspiece main body 18, a main bone pivot disk 20, and a main bone removal prevention nut 22. A Jinkasa 5 is screwed onto the upper wheel 3 via the fabric S.

  3A to 3D show the upper wheel body 18, FIG. 3A is a plan view, FIG. 3B is a front view, FIG. 3C is a bottom view, and FIG. 3D is a sectional view taken along line 3D-3D in FIG.

  The upper shaft body 18 accommodates the inner shaft insertion hole 26 having a pair of opposing projections 24, 24 engaged with the upper shaft positioning hole 16 of the intermediate shaft 2 on the inner peripheral surface, and the root portion of the main bone 4. 8 is formed of a cylindrical body coaxially provided with disk-shaped flanges 30 formed radially at substantially equal intervals around the periphery thereof. A cylindrical portion 31 to which the disk 20 is fitted is connected, and a male screw 32 is formed up to the upper end above the cylindrical portion 31, and a pair extending downward from the upper end along a plane including the axis. Split grooves 34 are provided.

  As apparent from FIGS. 3A and 3C, the pair of protrusions 24 and 24 formed on the inner peripheral surface of the upper potter's wheel body 18 is on the axis with respect to the plane including the split grooves 34 and 34 and the axis. It is on an orthogonal surface and is formed on the inner peripheral surface extending from the cylindrical portion 31 to the flange 30. The split grooves 34, 34 extend downward from the upper end of the upper crossbone body 18 through the flange 30 downward in parallel with the axis.

  Eight disk positioning holes 36 aligned on one concentric circle are formed in the flange 30 so as to penetrate the flange 30 at a position between the adjacent main bone receiving grooves 28 and 28.

  4A to 4D show the master pivot disk 20, FIG. 4A is a plan view, FIG. 4B is a front view, FIG. 4C is a bottom view, and FIG. 4D is a cross-sectional view taken along line 4D-4D in FIG.

  The main pivot support disk 20 configured to be able to be fitted onto the flange 30 of the upper potter's wheel body 18 is fitted to the outer diameter of the flange 30 of the upper potter's wheel body 18 and the cylindrical portion 31 of the upper potter's wheel body 18. It is configured to have an annular shape with a shaft hole 37 having a possible inner diameter, and is provided with eight master bone receiving grooves 38 corresponding to the master bone containing grooves 28 of the flange 30. Further, on the bottom surface thereof, there are provided eight positioning projections 40 that fit into the eight disk positioning holes 36 of the flange 30. When the master bone support disk 20 is abutted on the flange 30, both master bones are accommodated. The grooves 28 and 38 are configured to coincide with each other.

  On the upper surface of the master bone support disk 20, there are projecting shaft support grooves 42 for pivotally supporting the projecting shafts 44 (FIG. 5A) formed at the root of the master bone 4. It is formed so as to be orthogonal to the groove 38. Further, a projecting edge 46 is formed around the shaft hole 37 on the upper surface of the master bone support disk 20.

FIG. 5A is a bottom view showing the root portion of the main bone 4, and FIG. 5B is a plan view showing a state where the root portion of the main bone 4 is pivotally supported by the main bone pivot disk 20. The root portion 4a of the main bone 4 is flattened so that it can be inserted into the main bone receiving grooves 28 and 38, and a projecting shaft 44 serving as a pivot is integrally formed. When attached to the main rib receiving groove 38 and the projecting shaft pivot支溝42 for opening the root portion 4a of all ribs 4 having a projecting shaft 44 on the upper surface of the parent Honekururu支disk 20, the state shown in FIG. 5B .

  6A and 6B show a cross-sectional view and a bottom view of the main bone detachment prevention nut 22, and a female screw 48 to be screwed to the male screw 32 of the cylindrical portion 31 of the upper lathe body 18 is provided on the inner peripheral surface of the shaft hole 47. In addition, an annular recess 50 is provided around the shaft hole 47 on the bottom surface. As shown in FIG. 5B, the main bone removal prevention nut 22 is fitted to the main bone pivot disk 20 to which the base portions 4 a of all the main bones 4 are attached to prevent the main bone from coming off, thereby preventing the main bone from coming off. It has the function of facilitating attachment work of the parent bone.

  Instead of the main bone disengagement prevention nut 22, a main bone disengagement prevention ring that is relatively tightly fitted to the base of the cylindrical portion 31 of the upper crossbone main body 18 may be used.

  In the case of attaching the upper crossbone body 18 having the above-described configuration and the upper crossbone 3 provided with the master bone support disk 20 to the middle shaft 2, first, the protrusions 24 and 24 of the upper crossbone body 18 and the upper crossbone positioning of the middle shaft 2. The upper crossbone body 18 is inserted into the middle shaft 2 from above in a manner in which the orientations with the holes 16 and 16 are aligned, but when the projections 24 and 24 come into contact with the middle shaft 2, the split grooves 34 and 34 are formed from the projections 24 and 24. Also extends downward, the upper body 18 is elastically opened to allow the protrusions 24 and 24 to slide on the outer peripheral surface of the center shaft 2, and the protrusions 24 and 24 are engaged with the upper wheel positioning holes 16 and 16. At the time of entry, the upper body 18 returns to its original shape.

  Next, the master pivot disk 20 inserted into the middle shaft 2 from above is fitted into the cylindrical portion 31 of the upper skull body 18, and the positioning protrusions 40 of the master pivot disk 20 are positioned in the positioning holes 36 of the flange 30 of the skull body 18. The base part of all the main bones 4 is pivotally supported by the master bone support disk 20 in a state of being fitted to the master bone support disk 20, and then the master bone removal prevention nut 22 is screwed onto the male screw 32 exposed above the master bone support disk 20. Then, cover the upper surface of the parent bone pivot disk 20.

7A and 7B show a cross-sectional view and a bottom view of the fixing member 5 called a Jinkasa. This Jinka 5 is fitted to the male screw 32 of the upper wheel body 18 in the middle part of the shaft hole 51 inserted through the middle shaft 2 thereof. to be provided with an internal thread 52, and a bottom surface, and a recess 5 3 for accommodating the anti nut 22 off ribs. Then, after covering the fabric S having a center hole (not shown) through which the central shaft 2 is inserted on the main bone removal prevention nut 22, the Jinka 5 is screwed to the upper end portion of the male screw 32 of the lathe main body 18. Thus, the upper skull 3 is firmly fixed to the middle shaft 2.

  Next, FIG. 8A is an exploded front view showing the upper end portion of the umbrella provided with the top handle according to the second embodiment of the present invention, corresponding to FIG. In FIG. 8A as well, the middle shaft 2 provided with the pair of counterbore positioning holes 16 is shown rotated by 90 ° around the axis.

  The upper wheel 103A in the present embodiment is constituted by an upper wheel body 118, a main pivot support disk 120, and a main bone retaining ring 121A. A stone bump 114 </ b> A is screwed onto the upper wheel 103 via the fabric S. Instead of the main bone retaining ring 121A and the stone thrust 114A, a Jinkasa type parent bone retaining ring 121B and a stone thrust 114B as shown in FIG. 8B may be used.

  9A to 9C show the upper wheel body 118, FIG. 9A is a plan view, FIG. 9B is a front view, and FIG. 9C is a bottom view of one half cylinder 118a.

  The upper body 118 includes a pair of semi-cylindrical bodies 118a and 118b that are divided into two along a plane F including an axis (see FIG. 9A), and the semi-cylindrical bodies 118a and 118b are abutted to form a cylindrical body. In the formed state, a pair of protrusions 124, 124 engaged with the upper wheel positioning hole 16 of the middle shaft 2 are provided on a surface orthogonal to the surface F on the axis. At the lower end of the outer peripheral surface of the upper crossbone main body 118, a flange 130 for receiving the main pivot support disk 120 is formed, and above this flange 130, a cylindrical portion 131 to which the main pivot support disk 120 is fitted is connected, and A male screw 132 is formed to the upper end so as to be connected to the upper portion of the cylindrical portion 131. The cylindrical portion 131 is larger in the vertical dimension than the cylindrical portion 31 of the upper skull body 18 shown in FIGS. 3A to 3C.

  On the outer peripheral surface of the cylindrical portion 131, anti-rotation protrusions 140 and 140 for the master skeleton support disk 120 are extended in a vertical direction at positions corresponding to the protrusions 124 and 124. In addition, protrusions 141 and 141 are formed on one of the opposing surfaces of the pair of semi-cylindrical bodies 118a and 118b, and a recess 143 that engages with each protrusion 141 is formed on the other.

  10A to 10D show the master pivot disk 120, FIG. 10A is a plan view, FIG. 10B is a front view, FIG. 10C is a bottom view, and FIG. 10D is a cross-sectional view taken along line 10D-10D in FIG.

  A main pivot support disk 120 configured to be fitted to the cylindrical portion 131 of the upper wheel body 118 has a thickness corresponding to the cylindrical portion 131 and has an inner diameter shaft hole 137 that can be fitted to the cylindrical portion 131. And is configured in an annular shape, and is provided with eight parent bone receiving grooves 138 radially. An annular recess 145 is formed around the shaft hole 137 on the bottom surface of the master pivot disk 120 to accommodate the flange 130 of the upper potter body 118. Further, the shaft hole 137 has a protrusion for preventing rotation of the upper potter body 118. Concave grooves 136 and 136 engaging with 140 and 140 are extended in the vertical direction.

  On the upper surface of the master bone support disk 120, there are projecting shaft support grooves 142 for pivotally supporting the projecting shaft 44 (see FIG. 5A) formed at the root of the master bone 4. It is formed so as to be orthogonal to the accommodation groove 138. Further, a projecting edge 146 is formed around the shaft hole 137 on the upper surface of the master bone support disc 120. Further, notches 147 for facilitating the work of removing the main bone retaining ring 121A or 121B are formed at two positions on the peripheral edge portion of the upper surface of the main bone support disk 120.

  11A and 11B are cross-sectional views of the main bone retaining rings 121A and 121B. 11A is a simple annular body that includes a shaft hole 121a that is fitted to the protruding edge 146 of the master pivot disk 120 and covers the upper surface of the master pivot disk 120. A bone retaining ring 121B shown in FIG. 11B is a Jinkasa type member provided with an annular recess 121b that accommodates the protruding edge 146 of the parent bone pivot disk 120 and a female screw 121c that is screwed to the male screw 132 of the upper crossbone main body 118. . A notch 121d is formed at the lower end of the peripheral edges of the main bone retaining rings 121A and 121B in order to facilitate removal during disassembly.

  When attaching the upper crossbone 103A or 103B comprising the upper crossbone main body 118, the main bone pivot disk 120 and the main bone retaining ring 121A or 121B having the above-described configuration to the middle shaft 2, first, the semi-cylindrical body 118a of the upper crossbone main body 118 is used. , 118b is directed from the left and right to the middle shaft 2 in such a manner that the projections 124 are engaged with the upper wheel positioning holes 16 and 16 of the middle shaft 2, respectively, and the upper wheel body 118 is assembled.

  Next, after the master bone support disk 120 inserted into the middle shaft 2 from above is fitted into the cylindrical portion 131 of the upper main body 118, the base part of all the master bones 4 is pivotally supported by the master bone support disk 120. As shown in the lower part of 12A, a master bone retaining ring 121A is fitted on the projecting edge 146 of the master bone pivot disk 120, or as shown in the lower part of FIG. 12B, upward from the projecting edge 146 of the master bone pivot disk 120. The main bone retaining ring 121B is screwed to the protruding male screw 132.

  12A and 12B show stone bumps (fixing members) 114A and 114B, respectively. The stone bump 114A is formed at the lower end portion of the center hole 151 into which the upper end of the center shaft 2 is inserted. A female screw 152 that is screwed onto a male screw 132 that protrudes above the main bone retaining ring 121A of the upper crossbone main body 118 is provided, and the stone thrust 114B is provided on the main bone retaining ring 121B in addition to the center hole 151 and the male screw 132. A recess 153 is provided to accommodate the upper part.

  And about the upper crosspiece 103A, after covering the center part of the cloth | dye S provided with the center hole (not shown) in which the male screw 132 part is penetrated on the main bone retaining ring 121A, screwing the stone thrust 114A The upper runner 103A is firmly fixed to the middle shaft 2, and the upper runner 103B is similarly firmly fixed to the middle shaft 2 by screwing the stone bump 114B.

  Next, the lower handle 6 slidably fitted to the middle shaft 2 is connected to the support bone pivot member 54 shown in FIGS. 13A to 13D and to the lower side of the support bone pivot member 54. 14A to FIG. 14C and a bottom body 56 as shown in FIG.

  13A is a plan view of the support bone pivot member 54, FIG. 13B is a front view, FIG. 13C is a bottom view, and FIG. 13D is a cross-sectional view taken along line 13D-13D in FIG. 13A.

  The support bone pivot support member 54 having the shaft hole 57 through which the middle shaft 2 passes has eight support bone receiving grooves 58 for receiving the root portion of the support bone 8 radially around the shaft hole 57 at equal intervals. A relatively thick annular support bone pivoting disk part 60 formed, and a cylindrical part 62 for coupling with the bottom main body 56 coaxially suspended from the lower surface of the disk part 60, On the lower surface of the portion 60, there is a projecting shaft pivot groove 64 for pivotally supporting a projecting shaft (not shown) formed at the base portion of the support bone 8 as in the case of the main bone 4 shown in FIG. 5A. The support bone receiving grooves 58 are formed on both sides so as to be orthogonal to the support bone receiving grooves 58. In addition, a positioning hole 66 for positioning the support bone support member 54 with respect to the lower body 56 is also opened on the lower surface of the disk portion 60. Engaging protrusions 68 are provided around the outer periphery of the connecting cylindrical portion 62.

FIG. 14A is a plan view of the bottom wheel body 56, FIG. 14B is a front view thereof, and FIG. 14C is a cross-sectional view taken along 14C-14C of FIG. 14A. Lower runner body 56, the lower runner having the support bone and a shaft hole 57 of the pivot member 54 has a shaft hole 67 of the same diameter, and the elongated cylindrical portion 71 which is a gripping portion of the opening and closing operation of the umbrella 1 The main body 56 includes a flange 70 having substantially the same diameter as the disk portion 60 of the support bone support member 54 at the upper end, and a recess 72 in which the cylindrical portion 62 of the support bone support member 54 is removably fitted at the center of the upper surface. Are open coaxially. A groove 74 that engages with a protrusion 68 formed on the outer peripheral surface of the cylindrical portion 62 of the support bone pivot member 54 is provided around the inner peripheral surface of the recess 72. Further, on the peripheral surface of the cylindrical portion 71, an elongated opening 76 which infested the clasp 12, called "flick" has been formed.

  On the upper surface of the flange 70, two positioning projections 78, 78 engaged with the positioning hole 66 of the support bone pivot member 54 are opposed to each other with the recess 72 interposed therebetween. The concave grooves 80 and 80 having substantially the same depth as the thickness of the flange 70 are formed at two positions on the upper surface of the peripheral edge of the flange 70 at the offset position in such a manner that the flange portion of the part is curved downward. ing. The concave grooves 80, 80 form a gap with the disk portion 60 when the support bone pivot member 54 is fitted to the lower crossbone main body 56, so that the support bone pivot support member 54 is lowered to the lower crossbone main body 56. In the case of detaching from the engaging ridge, the tip of the appropriate detaching tool is inserted into the gap, and the engaging ridge 68 and the engaging groove 74 are disengaged by squeezing the tool. 54 and the bottom body 56 can be separated.

  FIG. 15 is an exploded front view in which a part of the hand 10 shown together with the lower end portion of the middle shaft 2 is taken as a cross section. The hand 10 includes a hand body 90 made of synthetic resin in which an external thread 84 is formed on the outer periphery of the end portion having the insertion hole 82 at the lower end of the center shaft 2, and a shaft hole 86 through which the center shaft 2 is inserted. A hand fixing cap 92 in which a female screw 88 to be screwed to the male screw 84 is formed on the hand main body 90 side of the shaft hole 86.

  An annular groove 81 is formed at the end of the middle shaft 2 inserted into the middle shaft insertion hole 82 of the hand main body 90 at a position separated from the lower end by a predetermined distance. The middle shaft 2 extends from the middle shaft insertion hole 82 in the annular groove 81. A stop ring 93 that constitutes a removal means for preventing the removal together with the hand fixing cap 92 is fitted. A notch 83 for preventing rotation is formed at a part of the front end edge of the middle shaft 2.

  The stop ring 93 is formed so that the outer diameter of the stop ring 93 when fitted in the annular groove 81 is larger than the inner diameter of the shaft hole 86 of the hand fixing cap 92 and smaller than the inner diameter of the female screw 88. Yes.

  On the other hand, at the bottom end of the middle shaft insertion hole 82 of the hand main body 90, an engaging portion 94 that engages with the notch 83 of the middle shaft 2 is provided. 16A shows a plan view of the main part of the hand main body 90, and FIG. 16B is a cross-sectional view taken along the line 16B-16B in FIG. When the four notches 83 of the central shaft 2 are formed at an angular interval of about 90 °, the engaging portion 94 is formed of a cross-shaped protruding edge as shown in FIGS. 16A and 16B. When the two notches 83 of the central shaft 2 are formed at an angular interval of about 180 °, the center shaft 2 has an I-shaped protrusion as shown in FIG. 16C.

  When the hand 10 having such a configuration is attached to the middle shaft 2, first, the hand fixing cap 92 is first inserted above the portion of the middle shaft 2 where the annular groove 81 is provided, and the annular groove 81 is inserted into the hand fixing cap 92. The stop ring 93 is fitted into the annular groove 81. On the other hand, a washer 95 is fitted in advance at the base of the male screw 84 of the hand body 90. Next, the lower end portion of the middle shaft 2 is inserted into the middle shaft insertion hole 82 of the hand main body 90, and the notch 83 of the middle shaft 2 is engaged with the engaging portion 94. Next, when the hand fixing cap 92 is screwed onto the male screw 84 of the hand body 90, the state shown in FIG. 17 is obtained, and the hand 10 is firmly and detachably fixed to the middle shaft 2.

  Next, a structure for attaching the fabric (sheet) to the main bone 4 will be described with reference to FIGS. 18, 19A, and 19B. 18 is a partial back view of the fabric S, FIG. 19A is an enlarged view of a portion A in FIG. 18, and FIG. 19B is an enlarged view of the portion A in FIG. 18 showing a state in which the main bone is inserted into the loop-shaped piece 96 of the fabric S. is there.

  In the present embodiment, a loop shape in which each of the parent bones 4 is inserted without play in the contact portion with the parent bone 4 on the back surface of the fabric S to which the eight parent bones 4 are attached around the upper cross 3. The piece 96 is sewn into the fabric S in advance.

  The attachment position of the loop-shaped piece 96 with respect to the fabric S is set at a position corresponding to approximately the middle of both ends of the main bone 4 and on the distal end side with respect to the pivot point P (see FIG. 1) of the support bone 8 with respect to the main bone 4. When the fabric (sheet) S is attached to the main bone 4, the eight main bones 4 are put into a so-called “mouth” state prior to the assembly of the main bone 4, so that the loop from the tip side of each of the main bones 4 is performed. The strip 96 can be inserted into the parent bone 4, whereby the fabric S and the eight parent bones 4 can be easily combined.

  Next, the preferable decomposition | disassembly procedure at the time of decomposition | disassembly and disposal of the umbrella 1 which has the top 3 is demonstrated.

  (1) First, in a state where the umbrella 1 is opened, the support bone pivot member 54 is removed from the armor body 56 in the above-described manner, and the root portions of all the support bones 8 are removed from the support bone pivot member 54.

  (2) Turn the Jinkasa 5 in the loosening direction to remove it from the cylindrical portion 31 of the upper body 18 and extract it from the middle shaft 2, and then remove the main bone disengagement prevention nut 22 from the cylindrical portion 31, so that the base portion of all the main bones 4 is the main bone. The main bone 4 is removed from the central shaft 2 together with the fabric S and the support bone 8 by removing from the pivot disk 20. At this time, the fabric S can be removed from the master bone 4 by putting the master bone 4 in a so-called “mouth” state and pulling out the loop-shaped piece 96 of the fabric S to the tip side of each master bone 4.

  (3) The main bone pivot disk 20, the upper skull body 18, the support bone pivot member 54, and the lower skull body 56 are removed upward from the middle shaft 2.

  (4) Turn the hand fixing cap 92 of the hand 10 in the loosening direction to remove it from the hand main body 90, remove the middle shaft 2 from the hand main body 90, and then remove the hand fixing cap 92 above the middle shaft 2.

  In this way, the metal member and the resin member are easily separated, enabling complete waste disposal.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic which abbreviate | omits one part and shows the whole structure in the closed state of the umbrella provided with 1st implementation of the top wheel according to this invention 1 is an exploded front view of the upper end of the umbrella in FIG. Top view of the top of the umbrella in FIG. FIG. 3A is a front view of the upper wheel body. FIG. 3A is a bottom view of the upper wheel body. Sectional drawing which follows the 3D-3D line | wire of FIG. 3A Fig. 1 is a plan view of the main pivot support disk of the umbrella in Fig. 1 FIG. 4A is a front view of the master pivot disk of FIG. 4A. 4A is a bottom view of the master pivot disk of FIG. 4A. Sectional view along line 4D-4D in FIG. 4A Bottom view of the root of the master bone The top view which shows the state in which the base part of the main bone was pivoted by the main bone pivot disk Cross section of the main bone removal prevention nut Bottom view of the main bone removal prevention nut Cross section of Jinkasa Jinkasa bottom view Exploded front view of the upper end of an umbrella with a second implementation of the upper wheel according to the present invention FIG. 8A is an exploded front view of the upper end showing the deformation of the umbrella in FIG. 8A. 8A is a plan view of the top of the umbrella in FIG. 8A FIG. 9A is a front view of the upper wheel body. FIG. 9B is a bottom view of one semi-cylindrical body of the upper wheel body. FIG. 8A is a plan view of the pedicle support disk of the umbrella of FIG. FIG. 10A is a front view of the master pivot disk of FIG. 10A. FIG. 10A is a bottom view of the master pivot disk of FIG. Sectional drawing along line 10D-10D in FIG. 10A Cross-sectional view of parent bone retaining ring Sectional drawing which shows deformation of the main bone retaining ring Exploded front view showing the top of the umbrella in FIG. Exploded front view showing the top of the umbrella in FIG. Plan view of the support bone pivot member Front view of brace support member Bottom view of brace support Sectional drawing along line 13D-13D in FIG. 13A Top view of the bottom wheel body Front view of the bottom wheel body Sectional view along 14C-14C in FIG. 14A Disassembled front view of the hand with a section shown along with the lower end of the central shaft An enlarged plan view of the main part of the hand FIG. 15 is an enlarged sectional view taken along line 16B-16B in FIG. FIG. 16B is an enlarged cross-sectional view showing a modification of FIG. Sectional drawing which shows the coupling | bonding state of a center axis | shaft and a hand Partial back view of fabric Enlarged view of part A in FIG. The enlarged view of the A section of FIG. 18 which shows the state which inserted the master bone in the loop-shaped piece of cloth | dough

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Umbrella 2 Center shaft 3,103A, 103B Upper skull 4 Master bone 6 Lower skull 8 Support bone 10 Hand 12 Support bone 14, 114A, 114B Stone thrust 16 Upper skull positioning hole 18, 118 Upper skull body 20, 120 Parent bone pivot disk 22 Parent bone removal prevention nuts 24, 124 Engaging projections 28, 38, 138 Parent bone receiving groove 30, 130 Flange 34 Split groove 42, 64, 142 Projection shaft pivot support groove 54 Support bone pivot support member 90 Hand body 92 Hand fixing cap 96 Loop Strip

Claims (2)

An upper body of an umbrella provided with an engaging projection engaged in an upper wheel positioning hole of the middle shaft of the umbrella on the inner peripheral surface, and a plurality of main bone housing grooves for housing a base portion of the main bone are provided radially on the periphery. An annular master bone pivot disc fitted to the upper wheel body,
The upper crossbone main body includes a cylindrical portion in which the main pivot support disk is fitted to the outer peripheral surface from above, and a male screw connected to the upper portion of the cylindrical portion, and the engaging protrusion is an inner periphery of the cylindrical portion. Extends to
The main pivot support disk is fitted to the outer peripheral surface of the cylindrical portion of the upper crossbone main body in which the engagement protrusion is engaged with the upper crossbone positioning hole of the middle shaft, and all the main bones are fitted to the main pivot support disk. In a state where the root portion is pivotally supported, a fixing member is screwed onto the male screw from above, so that the upper crossbone body and the main pivot support disk are integrated and fixed to the middle shaft. It is,
The upper crossbone main body includes a pair of split grooves extending from the upper end thereof to at least the cylindrical portion along a plane including an axis, and a flange that is coaxially connected to the lower portion of the cylindrical portion to receive the master bone pivot disk. provided, extending the engaging projections to the inner periphery of the flange, and the split groove is characterized in that it extends to below the flange, runner on recycling umbrella. A protruding shaft supporting groove for supporting the protruding shaft of the parent bone having a protruding shaft serving as a pivot at the base portion is formed on the upper surface of the parent bone supporting disk so as to be orthogonal to the parent bone receiving groove. runner on the claim 1, wherein.

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