JP3229170U - umbrella - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an umbrella capable of reliably positioning a potter's wheel at a lower part of a center rod regardless of the rotation phase of the potter's wheel. SOLUTION: An umbrella has a long rod-shaped middle rod 2, an upper wheel provided on the upper part of the middle rod 2, a plurality of ribs 4 extending laterally from the upper wheel, and a lower part than the upper wheel. A lower wheel provided on the middle bar 2 so as to be movable in the vertical direction, a plurality of ribs extending laterally radially from the lower wheel, and swingably fixed to the middle side of the rib 4, and a middle bar. The lower part of 2 is equipped with a repellent that fixes the lower wheel in a state where movement is restricted in the vertical direction, and the upper wheel is equipped with a middle bar in a state where movement is restricted in the vertical direction with respect to the middle bar 2. It is rotatably attached around the axis of 2. The upper wheel is fitted (free-fitted) to the base cylinder 12 which is fixed to the upper part of the center rod 2 in a state where vertical movement and rotation are restricted, and to the base cylinder 12 in a state where rotation is allowed from the outside. In addition, it has a rotating body 13 on the outer peripheral side to which one end side of the rib 4 is swingably attached. [Selection diagram] Fig. 3

Description

The present invention relates to an umbrella capable of suppressing damage of the umbrella bone supporting the umbrella cloth and the umbrella cloth itself under strong wind by rotating the umbrella cloth around the axis of the center rod.

Traditionally, umbrella cloths to prevent rain have a structure that not only does not allow water to pass through, but also makes it difficult for air to pass through. When a large force is applied to the umbrella cloth due to strong wind, the umbrella bone or umbrella that supports the umbrella cloth It is known that the cloth itself is susceptible to damage such as deformation and rupture. Therefore, in recent years, wind-resistant umbrellas (umbrellas that can prevent damage under strong winds) have been made of materials that are not easily deformed even when exposed to strong winds, and have adopted a structure that allows them to pass through strong winds. , The same in this specification) has been developed in various ways. As one of such wind-resistant umbrellas, when a strong wind is received, the umbrella cloth rotates with respect to the center of the center rod, including the upper wheel, the lower wheel, and the umbrella bone, and an excessive force acts. Umbrellas are known that suppress the use and avoid damage. As such an umbrella, those shown in the following Patent Documents 1 to 6 are known.

That is, Patent Document 1 describes a parasol that is attached to a strut portion so that the canvas can be opened and closed via an umbrella bone, and the canvas has a parasol having an opening / closing mechanism for opening a part of the parasol. It is disclosed. The parasol of Patent Document 1 has a structure in which a rotation mechanism is interposed between the support portion and the umbrella bone so that the umbrella bone rotates together with the canvas with respect to the support portion. And, as this rotation mechanism, the one using a radial bearing is exemplified.

Patent Document 2 describes the middle rod 1, the upper wheel 2 provided at the upper end of the middle bar, the lower wheel 3 slidably externally attached to the middle bar below the upper wheel, and the base end portion above. The uppermost open umbrella is provided by the lower potter's wheel 4 which is pivotally connected to the potter's wheel and the lower potter's wheel 5 which is pivotally connected to the lower potter's wheel and the lower potter's wheel 3 which slides up and down along the middle rod. A Western umbrella with a long umbrella that defines the position U and the lowest closed position D is disclosed. The middle rod 1 provided in the Western umbrella of Patent Document 2 constitutes an upper pipe 1a and a lower pipe 1b which are located at M between the open and closed positions of the umbrella and are vertically divided. A rotary connecting means 7 is provided between the upper pipe and the lower pipe so as to be coaxially connected and rotatably connected to each other around the axis.

In Patent Document 3, a handle rod, a one-sided potter's wheel attached to one side of the handle rod, a ribs radially arranged on the one-sided potter's wheel, and an outer surface of each of these ribs are provided. An umbrella having a cloth, a stone tip provided on the tip end side of the handle rod, and a grip portion provided on the base end side of the handle rod, and each rib is attached to the grip portion. Umbrellas that are attached so that they can rotate relative to each other are disclosed.

In Patent Document 4, a middle rod 10 extending linearly in the vertical direction so as to have two upper and lower ends 10a and 10b, and an upper end 10a of the middle rod 10 are rotatably provided via a sliding member. The upper rod 20 is pivotally anchored to the lower rod 20 and the lower rod 30 slidably fitted to the middle rod 10, and the upper rod 20 and the lower rod 30 are pivotally anchored to the middle rod 10 of the lower rod 30. It is composed of a skeleton 40 that is opened and closed by sliding up and down along the skeleton, and an umbrella base 50 that is placed on the skeleton 40 and is expanded and contracted by opening and closing the skeleton 40. When a force is applied to 50, the upper sill 20, the lower sill 30, the skeleton 40, and the umbrella base 50 are all rotatable about the axis L of the middle bar 10, and the middle bar 10 is at least the upper end. The portion 11 is formed in a hollow shape that opens upward at the upper end 10a, a central concave hole 252 is opened in the lower end surface 25 of the upper rod 20, and the sliding member is composed of a sliding seat 621 and a sliding element 622. The sliding seat 621 is fixed in the upper end portion 11 of the middle rod 10, and a flange 621b which is annular and has an inner hole 621c is radially projected from the inner wall 621a of the sliding member 10. The 622 is composed of a small-diameter upper portion 622a, a large-diameter lower portion 622b, and a staircase portion 622c formed between them. The upper portion 622a is inserted into the central concave hole 252, and the lower portion 622b is in the sliding seat 621. An umbrella is disclosed which is located below the flange 621b and in which the inner hole 621c is rotatably hooked by the step portion 622c.

Further, in Patent Document 4, a middle rod 10 extending linearly in the vertical direction so as to have two upper and lower ends 10a and 10b, and an upper rod rotatably provided at the upper end 10a of the middle rod 10 are provided. 20 and the lower rod 30 slidably fitted to the middle rod 10 and the upper and lower rods 20 are pivotally anchored along the middle rod 10 of the lower rod 30. It is composed of a skeleton 40 that is opened and closed by sliding up and down, and an umbrella base 50 that is placed on the skeleton 40 and is expanded and contracted by opening and closing the skeleton 40, and is formed on the skeleton 40 and the umbrella base 50. When a force is applied, the upper sill 20, the lower sill 30, the skeleton 40, and the umbrella base 50 are all rotatable about the axis L of the middle bar 10, and the middle bar 10 is at least the upper end portion 11. Is formed in a hollow shape with an upward opening at the upper end, and a central concave hole 26 having a small diameter of the hole 26a is formed on the lower end surface 25 of the upper rod 20, and the sliding member is a receiving seat 641 and a sliding element 642. The receiving seat 641 has a middle hole 641a and is fixed to the inner peripheral surface 11a of the upper end portion 11 of the middle rod 10, and the slide element 642 has a large diameter upper portion 642a and a small diameter. It is composed of a lower portion 642b and a staircase portion 642c formed between the lower portion 642b, the lower portion 642b is inserted into the inner hole 641a of the receiving seat 641, and the upper portion 642a is located in the central concave hole 26. An umbrella that rotatably hooks the hole 26a by 642c is also disclosed.

Further, in Patent Document 4, a middle rod 10 extending linearly in the vertical direction so as to have two upper and lower ends 10a and 10b, and an upper rokuro 20 rotatably provided at the upper end 10a of the middle rod 10 are provided. And, the lower kuro 30 slidably fitted to the middle rod 10, the upper kuro 20 and the lower kuro 30 are pivotally anchored, and the upper and lower parts along the middle rod 10 of the lower kuro 30 are vertically fixed. It consists of a skeleton 40 that is opened and closed by sliding, and an umbrella base 50 that is placed on the skeleton 40 and is expanded and contracted by opening and closing the skeleton 40, and exerts a force on the skeleton 40 and the umbrella base 50. When this is applied, the upper rokuro 20, the lower rokuro 30, the skeleton 40, and the umbrella base 50 are all rotatable about the axis L of the middle bar 10, and the middle bar 10 has at least the upper end 11 A hollow shape with an upward opening at the upper end is formed, a large-diameter center mounting hole 28 is opened on the upper end surface of the upper rokuro 20, and a small-diameter through hole 29 communicating with the center mounting hole 28 is opened on the lower end surface 25. A staircase portion 28a is formed between the large-diameter center mounting hole 28 and the small-diameter through hole 29, the sliding member is composed of a receiving seat 651 and a sliding element 652, and the receiving seat 651 is centered. It has a concave hole 651a and is fixed to the upper end portion 11 of the middle rod 10, and the slide element 652 includes a large-diameter upper portion 652a, a small-diameter lower portion 652b, and a staircase portion 652c formed between them. The lower portion 652b passes through the through hole 29 and is inserted into the central concave hole 651a of the receiving seat 651, and the upper portion 652a is located in the central mounting hole 28 and is provided by the staircase portion 652c. An umbrella in which the staircase portion 28a of the above is rotatably hooked is also disclosed.

Furthermore, Patent Document 4 provides a middle rod 10 extending linearly in the vertical direction so as to have two upper and lower ends 10a and 10b, and the upper end 10a of the middle rod 10 rotatably provided via a sliding member. The upper rotor 20 is slidably fitted to the middle rod 10, and the upper bracket 20 and the lower bracket 30 are pivotally anchored in the lower bracket 30. The skeleton 40 is opened and closed by sliding up and down along the rod 10, and the umbrella base 50 that is placed on the skeleton 40 and is expanded and contracted by the opening and closing of the skeleton 40. When a force is applied to the umbrella base 50, the upper sill 20, the lower sill 30, the skeleton 40, and the umbrella sill 50 are all rotatable about the axis L of the middle rod 10, and the middle rod 10 is rotatable. , At least the upper end portion 11 is formed in a hollow shape that opens upward at the upper end 10a, and the upper end portion 11 is formed downward from the upper end 10a to the large diameter portion 111 and the small diameter portion 112 and the staircase portion 113 formed between them. A pair of through holes 114 located symmetrically with each other about the axis thereof are provided on the peripheral surface of the large diameter portion 111, and the sliding member is formed from the outside of the large diameter portion 111. A pair of balls 681 and 681 projecting into the large diameter portion 111 through the through holes 114 and received by the through holes 114, and both balls 681 and 681 between the pair of balls 681 and 681. It is composed of an elastic member 682 provided so as to press and give an outward urging force, and a slider 683. The slider 683 is formed in a hollow tubular shape, and the lower portion 683B thereof is in the middle. The middle rod is formed between a large diameter portion 683a that rotatably fits the large diameter portion 111 of the rod 10 and a small diameter portion 683b that rotatably fits the small diameter portion 112 of the middle rod 10. It is composed of a staircase portion 683c rotatably hooked on the staircase portion 113 of 10, the upper portion 683A thereof is fitted to the lower portion 22 of the upper rokuro 20, and the annular concave groove 831c provided in the lower portion 683B is the ball. Also disclosed are umbrellas that receive them while elastically contacting the portions of 681,681 protruding from the large diameter portion 111.

Patent Document 5 describes a rotary umbrella having a positioning structure including a center rod, an upper locro, a lower locro, an open umbrella spring, a buffer cover, and a rib, and the center rod is hollow. The main middle bar and the sub-middle bar are plugged and connected, and the length of the sub-middle bar is shorter than that of the main middle bar, and the outer diameter of the lower half of the sub-middle bar is larger than the inner diameter of the main middle bar. It is small, and after the lower half of the sub-middle bar is plugged in and connected from the upper end of the main center bar, the position near the top end of the main center bar and the position near the top end of the main center bar so that the main center bar and the sub-middle bar do not come off. The lower half of the sub-middle rod that has been inserted is provided with an inner concave annular groove that is formed so as to fit perfectly by pressing, and the hand is fixed to the bottom end of the main middle rod and the main A repellent is provided at a position close to the hand on the middle rod, the upper locro is fixed at a position near the apex of the sub-middle rod, and one end of the plurality of ribs is pivotally contacted with the upper locro. At the same time, the rib has an umbrella cloth surface, the lower locro is covered with the middle rod, and the lower locro is composed of a main locro, a sub locro, and a cover. A plurality of notch grooves are provided on the entire peripheral surface of the bottom end, a locking block is provided on the peripheral surface of the main locro located above the notch groove, and the sub-locro is provided above the main locro. The cover is provided with a convex ring on the inner surface of the bottom end, a locking hole is provided at a position close to the upper end, and the cover is put on the lower half of the main locro from below the main locro and the engagement. The stop hole and the locking block of the main rod are locked, and the notch groove at the bottom end of the main rod is further covered. Further, one end of the rotary umbrella is pivotally contacted with the sub rod and the other end is said. A plurality of receiving bones pivotally contacted with the ribs and a plurality of auxiliary bones having one end pivotally contacted with the main locro and the other end pivotally contacted with the bone receiving are provided, and the opening spring is provided with the lower part. The bottom of the open umbrella spring is provided in the main locro, and the top end of the open umbrella spring is in contact with the bottom surface of the sub locro, and is provided in a state of being stretched between the main locro and the sub locro. A rotary umbrella having a positioning structure is disclosed, wherein the cushioning cover is covered with the sub-middle bar of the middle bar, and the top end of the cushioning cover is in contact with the bottom surface of the upper locro.

Patent Document 6 includes a hollow middle rod having an axis Y extending in the axial direction, an upper wheel body, an engaging member, and a movable upper wheel, and is rotatable to the upper end of the middle rod. The potter's wheel, the potter's wheel body, the movable potter's wheel, the wheel provided on one side, and the wheel seat provided with a wire that abuts on the wheel and connects to the wheel are included. An umbrella cloth support including a potter's wheel rotatably provided on the middle rod, a plurality of potter's wheels connected to the movable upper wheel and the movable potter's wheel, and a potter's wheel covering the outer surface of the potter's wheel. It is an automatic opening and closing umbrella that includes a part, and the upper wheel body has a hollow tubular shape, and a middle rod is rotatably inserted, and the first pivot part and the first pivot part are attached to both upper and lower ends, respectively. It has one engaging portion, the engaging member is attached to the upper wheel body, and has a second pivoting portion and a protrusion at both upper and lower ends, respectively, and the second pivoting portion is the first. Corresponding to one pivoting portion, a first fitting portion is provided between the protrusion and the first pivoting portion, and the movable upper wheel is rotatably provided with respect to the middle rod, and the pulley. The seat has a hollow tubular shape, has fittings and insertion portions, and has a second engaging portion that engages with the first engaging portion and a first connecting portion at both ends, and the lower wheel body is It has a second connecting portion that is connected to the pulley seat and is connected to the first connecting portion, and is rotatably inserted into the fitting insertion portion so that the movable potter's wheel rotates with respect to the middle rod. It is freely provided, and when the umbrella is opened, the upper wheel body and the lower wheel body are positioned by engaging the second engaging portion with the first engaging portion to prevent arbitrary rotation. The umbrella cloth support portion is linked to the movable upper wheel and the movable lower wheel, and the movable upper wheel and the movable lower wheel are configured to rotate with respect to the middle rod in synchronization with each other. An automatic opening / closing umbrella in which a portion supporting the wheel rotates is disclosed.

Utility Model Registration No. 313806 Japanese Unexamined Patent Publication No. 2003-153717 Japanese Unexamined Patent Publication No. 9-70307 Japanese Patent No. 3828092 Utility Model Registration No. 3197959 Utility Model Registration No. 3200434

By the way, some umbrellas are provided with a repellent that positions the potter's wheel at the bottom of the center rod so that it can be kept closed. For this repellent, cut a slit groove in the lower wheel in the vertical direction along the axis of the middle bar, and insert the repellent claw into this slit groove to put the lower wheel on the lower part of the middle bar. A positioning structure is generally adopted.
However, the umbrellas of Patent Documents 1 to 6 described above have a structure in which the umbrella cloth rotates with respect to the center of the center rod together with the upper wheel, the lower wheel, and the umbrella bone when a strong wind is received. It has. In this way, in the structure in which the lower wheel is rotatable with respect to the axis of the middle rod, the slit groove also freely rotates around the axis of the middle rod as the lower wheel rotates, so the repellent claw is inserted. The potter's wheel does not always rotate so that the slit groove comes to a position where it is possible, and the potter's wheel may not be positioned at the bottom of the center rod. That is, the umbrellas of Patent Documents 1 to 6 do not have a structure that enables positioning even if the potter's wheel rotates around the axis of the center rod, and can reliably cope with the rotation of the umbrella cloth. I couldn't say there was.

The present invention has been made in view of the above-mentioned problems, and provides an umbrella capable of positioning the lower wheel at the lower part of the middle bar regardless of the rotation phase of the lower wheel with respect to the middle bar. The purpose.

In order to solve the above problems, the umbrella of the present invention takes the following technical measures.
That is, the umbrella of the present invention has a long rod-shaped middle rod, an upper wheel provided on the upper part of the middle rod, a plurality of ribs extending laterally from the upper wheel, and a lower portion than the upper wheel. A lower wheel provided on the middle rod so as to be movable in the vertical direction, a plurality of ribs extending laterally radially from the lower wheel, and swingably fixed to the middle side of the rib, and the above-mentioned An umbrella equipped with a repellent that fixes the lower wheel in a state where movement is restricted in the vertical direction at the bottom of the middle bar, and the upper wheel is restricted from moving in the vertical direction with respect to the middle bar. In this state, it is rotatably attached around the axis of the center rod.

It should be noted that preferably, the upper body has a base cylinder that is fitted to the upper part of the middle rod in a state where rotation is restricted, and the rib that is fitted to the base cylinder from the outside and has a rib on the outer peripheral side. It has a rotating body that can be swingably attached in the vertical direction, and an annular recess that is recessed toward the middle rod side is formed on the outer peripheral surface of the base cylinder, and the rotating body is formed. It is preferable that the base cylinder is fitted into the annular recess of the base cylinder in a state where the rotation is permitted so that the base cylinder can be rotated in a state where the movement is restricted in the vertical direction.

It should be noted that preferably, the potter's wheel is provided with a claw that engages with the potter's wheel from the side facing the middle rod to regulate the rotation of the potter's wheel, and the potter's wheel engages with the potter's wheel. A step portion for restricting the upward movement of the lower wheel is provided on the side facing the middle rod, and the step portion is such that the lower wheel with respect to the middle rod is of the repellent regardless of its rotation phase. It is preferable that the claws are formed over the entire circumference so as to surround the middle rod so that the claws can be engaged with each other.

It should be noted that preferably, when the upper wheel is located above the middle bar, rotation of the upper wheel with respect to the middle bar is allowed, and when the upper wheel is located below the middle bar, the upper wheel is above the middle bar. The rotation of the potter's wheel should be regulated.
It should be noted that preferably, the upper wheel is rotated so as to engage with the folded rib so that the folded rib does not rotate around the middle rod when the rib is folded along the middle rod. It is good to have a regulation department.

According to the umbrella of the present invention, the potter's wheel can be positioned at the lower part of the center rod regardless of the rotation phase of the potter's wheel with respect to the center rod.

It is a front view of the umbrella of this embodiment which is in an open state. It is sectional drawing when the umbrella in the open state of FIG. 1 is cut along the vertical direction. It is a cross-sectional view of the potter's wheel. It is an exploded perspective view of the potter's wheel. It is a cross-sectional view of the potter's wheel.

[First Embodiment]
Hereinafter, an embodiment of the umbrella 1 of the present invention will be described in detail with reference to the drawings.
FIG. 1 schematically shows an umbrella 1 of the present embodiment in a state where the umbrella 1 is opened (hereinafter, referred to as an umbrella open state).
As shown in FIG. 1, the umbrella 1 of the present embodiment in the open umbrella state has an umbrella cloth 3 and an umbrella cloth that spread horizontally with respect to the center rod 2 arranged so that the axis is oriented in the vertical direction. The ribs 4 and the like that support 3 are rotatable around the axis of the center rod 2. If such a structure in which the umbrella cloth 3 is rotatable is adopted, the umbrella cloth 3 rotates around the axis of the center rod 2 even in a strong wind, and the force of the wind acting on the umbrella bone 5 and the umbrella cloth 3 is exerted. Since it weakens, it is possible to avoid damage to the umbrella 1 due to strong wind.

For example, when a wind (strong wind) as shown by a white arrow is blown from the side of the umbrella 1 as shown in FIG. 1, in the umbrella 1 of the present invention, the direction indicated by the black arrow. The umbrella cloth 3 rotates in the (horizontal direction) to dissipate the force applied to the umbrella bone 5 by the wind, and the umbrella cloth 3 does not bend or break even when it receives a strong wind or the like, and the umbrella 1 is damaged. It is possible to avoid it. In other words, the umbrella 1 of the present invention can be said to be an umbrella 1 (windproof umbrella 1) having wind resistance that is not easily damaged by strong winds. In the umbrella 1 of the present invention, such rotation of the umbrella cloth 3 is possible because of the upper wheel 6 that supports the rib 4.

However, in the following, before the explanation of the upper wheel 6, the overall configuration of the umbrella 1 including the upper wheel 6 will be described.
As shown in FIG. 2, the umbrella 1 of the present embodiment has a center rod 2 arranged so as to have its axis oriented in the vertical direction. A stone tip 7 is provided at the upper end of the middle bar 2, and a handle 8 is provided at the lower end of the middle bar 2 to be gripped when the user points the umbrella 1. An upper wheel 6 is provided on the lower side of the stone thrust 7 in the middle rod 2 in a state where the movement is restricted in the vertical direction, and the upper wheel 6 is provided on one end side of the rib 4 extending substantially horizontally toward the side. (Hereinafter, the end portion on the side closer to the middle rod 2 is referred to as one end side) is supported. A plurality of the ribs 4 are provided so as to extend radially from the middle rod 2, and one end of each rib 4 is connected to the upper wheel 6. Further, a lower wheel 10 for supporting the rib 9 is provided below the upper wheel 6 on the middle rod 2. The lower wheel 10 can be moved in either the upper or lower direction along the middle rod 2, and when it is moved upward in the direction approaching the upper wheel 6, the umbrella 1 (umbrella cloth 3) opens and the upper wheel 6 is used. Umbrella 1 (umbrella cloth 3) closes when it is moved downward in the direction away from it.

The rib 4 described above is a long rod-shaped member made of metal, glass fiber, or the like. Further, the rib 9 supported by the potter's wheel 10 is also made of the same material as the rib 4, and has a size of about 1/3 to 1/2 of the length of the rib 4. There is. The end (one end side) of the rib 4 on the side close to the center rod 2 is oscillatingly connected to the upper wheel 6 in the vertical direction. Further, at the end of the rib 4 on the side far from the center rod 2 (hereinafter referred to as the other end side), a dew tip 11 for dropping the water transmitted through the umbrella cloth 3 to the outside of the umbrella 1 is provided. Further, a dowel 33 for connecting the other end side of the rib 9 to the rib 4 is provided on the middle side of the rib 4 in the longitudinal direction. Further, one end side of the rib 9 is vertically swingably attached to the lower wheel 10, and the other end side of the rib 9 is swingably swingable vertically on the dowel 33 of the rib 4 described above. It is connected.

An umbrella cloth 3 made of a water-repellent synthetic fiber or a sheet is attached to the upper side of the rib 4 described above to prevent rainwater from entering the umbrella.
That is, in the umbrella 1 of the present invention, the upper wheel 6 is fixed to the middle rod 2 in a state where the movement of the upper wheel 6 is restricted in the vertical direction, whereas the lower wheel 10 is movable in the vertical direction. Therefore, as shown by the alternate long and short dash line in FIG. 2, when the lower wheel 10 is moved downward so as to keep a distance from the upper wheel 6, one end side of the rib 9 connected to the lower wheel 10 also moves downward. , The rib 9 swings so that the rib 9 and the middle rod 2 are substantially parallel to each other. Then, in conjunction with the swing of the rib 9, the rib 4 swings downward with respect to the upper wheel 6, and the rib 4 also swings parallel to the middle rod 2 and is attached to the rib 4. The umbrella cloth 3 can be folded. When opening the umbrella cloth 3, if the lower wheel 10 is moved upward so as to be closer to the upper wheel 6, the umbrella bone 5 is unfolded in the reverse procedure of folding, and the umbrella cloth 3 can be opened. ..

By the way, as described above, in the umbrella 1 of the present invention, members such as the umbrella cloth 3, the rib 4, the upper wheel 6, the lower wheel 10, and the child bone 9 are rotatable around the axis of the center rod 2. It is characterized by being. The rotation of the member around the umbrella cloth 3 is due to the structure of the upper wheel 6 as shown below.
As shown in FIG. 3, the upper wheel 6 has a base cylinder 12 fixed to the upper part of the center rod 2 in a state where vertical movement and rotation are restricted, and a state in which the base cylinder 12 is allowed to rotate from the outside. It has a rotating body 13 which is fitted (freely fitted) with the rod and has one end side of the rib 4 oscillatingly attached to the outer peripheral side.

The base cylinder 12 is a substantially cylindrical member having an insertion hole 14 formed in the center through which the middle rod 2 can be inserted in the vertical direction. An annular recess 15 recessed toward the middle rod 2 side is formed on the upper outer peripheral surface of the base cylinder 12. The annular recess 15 is formed in an annular shape so as to orbit around the axis of the center rod 2, and the above-mentioned rotating body 13 is rotatably fitted.
Further, as shown in FIG. 4 (particularly, see the lower left figure of FIG. 4), the outer peripheral surface on the upper side of the base cylinder 12 has a phase difference of 180 degrees in the circumferential direction at two locations (in the example, 180 degrees (Open) A slit 16 is formed. The slit 16 is formed so as to cut out the wall surface of the base cylinder 12 from the top to the bottom, and the diameter of the upper side of the base cylinder 12 is reduced by the amount cut out in the portion where the slit 16 is provided. It can be transformed like this. That is, if the slit 16 described above is provided, the base cylinder 12 can be shrunk to a small diameter, and the rotating body 13 can be easily fitted into the annular recess 15.

Further, a protrusion 17 protruding toward the outer peripheral side is formed on the lower outer peripheral surface of the base cylinder 12. The protrusion 17 engages with the folded rib 4 described later to form a rotation regulating portion 18 that regulates the rotation of the umbrella cloth 3.
The rotating body 13 is a short cylindrical (annular) member having a fitting hole 19 that can be fitted into the annular recess 15 in the center. On the outer peripheral surface of the rotating body 13, an upper peripheral groove 20 recessed toward the middle rod 2 side (center side of the fitting hole 19) is formed. The upper peripheral groove 20 is formed so as to orbit the outer peripheral surface of the rotating body 13 on the intermediate side in the vertical direction around the axial center of the middle rod 2, and connects one end side of the rib 4 to the groove. The rib connecting wire 21 can be turned around.

More specifically, a connecting hole 22 through which the above-mentioned rib connecting wire 21 can be inserted is formed on one end side of the rib 4. Then, if the above-mentioned rib connecting wire 21 is rotated around the rotating body 13 along the upper peripheral groove 20 with the connecting hole 22 of the rib 4 inserted, one end side of the rib 4 is raised by the rib connecting wire 21. It can be fixed to the potter's wheel 6. At this time, since one end side of the rib 4 is pivotally supported by the rib connecting wire 21, the rib 4 is connected to the rotating body 13 in a state where the other end is allowed to swing in the vertical direction. ..

Further, on the outer peripheral surface of the rotating body 13, a rib accommodating portion 23 that is recessed toward the middle rod 2 side (inner peripheral side) and extends in the vertical direction is formed. The rib accommodating portion 23 is formed as a recess that opens in two directions, that is, outward and downward, and a plurality of rib accommodating portions 23 are formed around the axis of the center rod 2 at equal intervals. One end side of the rib 4 can be inserted and connected to the plurality of rib accommodating portions 23 in a state where the rib 4 is allowed to swing in the vertical direction.

In the case of the above-mentioned upper rokuro 6, even if the rotation of the base cylinder 12 is restricted with respect to the middle rod 2, the rotating body 13 rotates with respect to the base cylinder 12 (the axis of the middle rod 2). It is possible to rotate a member such as the rib 4 integrally with the rotating body 13 around the axis of the center rod 2.
When the above-mentioned upper wheel 6 is rotatable with respect to the middle rod 2, the lower wheel 10 connected to the upper wheel 6 via the umbrella bone 5 such as the rib 4 and the child bone 9 is also the axis of the middle rod 2. It can rotate around the heart. However, with the conventional potter's wheel, it may be difficult to position the potter's wheel at the lower part of the middle rod depending on the rotation phase of the potter's wheel. Therefore, in the umbrella 1 of the present invention, it is possible to fix (position) the lower wheel 10 to the lower part of the middle bar 2 regardless of the rotation phase of the lower wheel 10 with respect to the middle bar 2. I am doing it.

Next, the potter's wheel 10 and the repellent 24, which are the features of the present invention, will be described in detail.
The lower wheel 10 is a substantially cylindrical member that is long in the vertical direction. Similar to the upper wheel 6, a lower peripheral groove 25 recessed toward the middle rod 2 side is formed on the upper outer peripheral surface of the lower wheel 10. The lower circumferential groove 25 orbits around the axial center of the center rod 2, and the rib connecting wire 26 is circulated around the outer peripheral surface of the lower wheel 10 through the groove. ..

Further, on the outer peripheral surface of the lower wheel 10, a rib accommodating portion 27 that is recessed toward the middle rod 2 side (inner peripheral side) and extends from the top to the bottom is formed. Like the rib accommodating portion 23, the rib accommodating portion 27 is formed as a recess open in two directions, that is, outward and upward, and a plurality of the rib accommodating portions 27 are spaced around the axis of the middle rod 2 at equal intervals. It is formed. One end side of the rib 9 can be inserted into and connected to the plurality of rib accommodating portions 27 in a state where the rib 9 is allowed to swing in the vertical direction.

Further, a through hole 28 that penetrates the lower wheel 10 in the vertical direction is formed in the center of the lower wheel 10, so that the middle rod 2 can be inserted into the through hole 28 in a state where the lower wheel 10 is allowed to move in the vertical direction. It has become.
By the way, the above-mentioned through hole 28 is formed so that the inner diameter gradually decreases from the top to the bottom. That is, the through hole 28 from the upper end of the lower wheel 10 to the middle in the vertical direction is formed in a straight tubular shape having the largest inner diameter. Further, the through hole 28 from the middle of the lower wheel 10 in the vertical direction to slightly above the lower end of the lower wheel 10 is formed in a straight tubular shape having an inner diameter slightly smaller than that of the upper end. These straight tubular portions having different inner diameters are connected by a flange-shaped first step portion 29 extending in the horizontal direction.

On the other hand, the lowermost end of the through hole 28 is formed to have the smallest inner diameter. Both the through hole 28 having the smallest inner diameter and the through hole 28 slightly above the lower end are formed in a straight tubular shape having different inner diameters from each other. The straight tubular portions having different inner diameters are connected by a flange-shaped second step portion 30 extending in the horizontal direction. It is connected by the second step portion 30.

The repellent 24 is a member that fixes (positions) the lower wheel 10 at a predetermined position on the lower side of the middle rod 2 in a state where the movement is restricted in the vertical direction, and is formed of metal or the like in an elongated plate shape in the vertical direction. .. The upper portion of the repellent 24 described above is embedded and fixed inside the middle rod 2. On the other hand, the lower portion of the repellent 24 is not fixed to the middle rod 2, a part of the lower end thereof protrudes to the outside of the middle rod 2, and the pressing portion 31 is provided at the tip protruding outward. That is, in the above-mentioned repelling 24, the lower end side which is not fixed to the middle rod 2 can be elastically deformed with respect to the upper end side fixed to the middle rod 2, and the pressing portion 31 is placed on the center side of the middle rod 2. When pushed toward, the repellent 24 itself is elastically deformed, and the lower end side can be pushed into the middle rod 2.

On the vertical side of the repellent 24, a claw 32 that meshes with the lower wheel 10 from the inner peripheral side (the side facing the middle rod 2) and can regulate the upward movement of the lower wheel 10 is provided. ..
The claw 32 of the repellent 24 can be retracted or protruded from the outer peripheral surface of the middle rod 2 by the elastic deformation of the repellent 24 described above. The claw 32 meshes with the lower wheel 10 fitted on the middle rod 2 to regulate the upward movement of the lower wheel 10. Specifically, the claw 32 has a shape in which the tip on the outer peripheral side is pointed outward, and the lower side is formed so as to extend in a direction orthogonal to the axis of the center rod 2. Therefore, if the lower side of the claw 32 of the repellent 24 is pressed against and engaged with the second step portion 30 extending in the horizontal direction, the upward movement of the lower wheel 10 is restricted, and the lower wheel 10 is designated by the middle rod 2. It is possible to securely fix it in the position.

Further, since the second step portion 30 formed on the lower end side of the above-mentioned through hole 28 is formed over the entire circumference so as to surround the periphery of the middle rod 2, the claws of the repellent 24 are formed regardless of the rotation phase. It can be engaged with 32. Therefore, no matter what rotation phase the lower wheel 10 is stopped with respect to the middle rod 2, the claw 32 of the repellent 24 is surely engaged with the second step portion 30, and the lower portion of the middle rod 2 is positioned at a predetermined position. It is possible to fix the lower wheel 10 to the bottom.

By the way, in the above-described umbrella 1 of the present invention, when the upper wheel 6 is located above the middle bar 2, the upper wheel 6 is allowed to rotate with respect to the middle bar 2, and the upper wheel 6 is located below the middle bar 2. In this case, the rotation of the upper wheel 6 with respect to the middle rod 2 is restricted. Specifically, the upper wheel 6 is engaged with the folded rib 4 so that when the rib 4 is folded along the middle bar 2, the folded rib 4 does not rotate around the middle bar 2. It is provided with a matching rotation control unit 18.

In the case of the present embodiment, the rotation restricting portion 18 is a protruding portion 17 formed in a protruding shape on the lower outer peripheral surface of the base cylinder 12 described above. That is, in the state where the umbrella 1 is closed (the state where the umbrella 1 is closed), the rib 4 is folded so as to be substantially parallel to the center rod 2. At this time, since the rib 4 swings downward and is in a state close to the middle rod 2, the folded rib 4 is caught (engaged) with the above-mentioned protrusion 17 and is engaged with the middle rod 2. The rotation of the umbrella cloth 3 is suppressed. That is, in the umbrella 1 of the present invention, the protrusion 17 functions as a rotation regulating portion 18 that engages with the folded rib 4 to suppress the rotation of the umbrella cloth 3.

The umbrella 1 of the present invention described above has a configuration in which the umbrella cloth 3 not only rotates around the axis of the center rod 2 but also the umbrella cloth 3 switches between a rotation restricted state and a rotation allowed state as the umbrella 1 is opened and closed. It has become. Therefore, in the above-described umbrella 1 of the present invention, damage to the umbrella bone 5 and the umbrella cloth 3 due to strong wind can be suppressed by the rotation of the umbrella cloth 3 in the open state, and the rotation of the umbrella cloth 3 is restricted in the closed umbrella 1 state. Therefore, problems such as rainwater splashing are suppressed.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not restrictive. In particular, in the embodiments disclosed this time, matters not explicitly disclosed, for example, various parameters, dimensions, weights, volumes, etc., do not deviate from the range normally practiced by those skilled in the art, and those skilled in the art usually practice. If so, a value that can be easily assumed is adopted.

1 Umbrella 2 Middle bar 3 Umbrella cloth 4 Ribbone 5 Umbrella bone 6 Upper bone 7 Stone thrust 8 Handle 9 Ribbon 10 Lower rod 11 Dew point 12 Base cylinder 13 Rotating body 14 Insertion hole 15 Circular recess 16 Slit 17 Protrusion 18 Rotation Regulator 19 Fitting hole 20 Upper circumference groove 21 Ribbone connecting wire 22 Connecting hole 23 Ribbon accommodating part 24 Repellent 25 Lower circumference groove 26 Ribbon connecting wire 27 Ribbon accommodating part 28 Through hole 29 First step part 30 Second step Part 31 Pressing part 32 Claw 33 Dove

Claims (5)

A long rod-shaped middle rod, an upper wheel provided on the upper part of the middle rod, a plurality of ribs extending laterally from the upper wheel, and a middle rod below the upper wheel in the vertical direction. A potter's wheel that is movably provided, a plurality of potter's wheels that extend laterally from the potter's wheel and are oscillatingly fixed to the middle side of the rib, and a potter's wheel at the bottom of the middle rod. It is an umbrella equipped with a potter's wheel that fixes the movement in the vertical direction in a restricted state.
An umbrella characterized in that the upper wheel is rotatably attached around the axis of the middle bar in a state where its movement is restricted in the vertical direction with respect to the middle bar. The potter's wheel
A base cylinder that is fitted to the upper part of the middle rod in a state where rotation is restricted, and a rotation that is fitted to the base cylinder from the outside and the rib is oscillatingly attached to the outer peripheral side in the vertical direction. Have a body and
An annular recess is formed on the outer peripheral surface of the base cylinder, which is recessed toward the center rod side.
Claim 1 is characterized in that the rotating body is fitted in an annular recess of the base cylinder in a state where rotation is permitted, so that the rotating body can rotate in a state where movement in the vertical direction is restricted. Umbrella described in. The repellent is provided with a claw that engages with the potter's wheel from the side facing the middle rod to regulate the rotation of the potter's wheel.
The lower wheel is provided with a step portion on the side facing the middle rod that regulates the upward movement of the lower wheel by engaging with the claw of the repellent.
The step portion is formed over the entire circumference of the middle rod so that the lower wheel can engage the claws of the repellent regardless of its rotation phase. The umbrella according to claim 1 or 2, characterized in that. When the upper wheel is located above the middle bar, rotation of the upper wheel with respect to the middle bar is allowed.
The umbrella according to any one of claims 1 to 3, wherein when the upper wheel is located at the lower part of the middle bar, the rotation of the upper wheel with respect to the middle bar is restricted. The upper wheel is provided with a rotation restricting portion that engages with the folded rib so that the folded rib does not rotate around the middle bar when the rib is folded along the middle bar. The umbrella according to any one of claims 1 to 4, wherein the umbrella is provided.

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