JPS6230965Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the improvement of Western umbrellas, and relates to a Western umbrella whose main ribs expand when the umbrella is opened to increase the intended function of the umbrella, while the main ribs contract when the umbrella is closed to make it more compact.

Traditionally, various types of Western umbrellas have been provided.For example, there are already umbrellas with telescopic middle rods that extend when the umbrella is opened, but contract when the umbrella is closed. Proposed. In the case of this type of Western umbrella, when the umbrella is closed, the umbrella becomes compact and convenient to carry, but only the middle rod expands and contracts, and when the umbrella is opened, the unfolded diameter of the umbrella cloth made up of the framework expands. Therefore, the intended function of the umbrella (rain protection function) is not improved. Regarding this point, for example, Jitsugan No. 49-7000 (Jitsugan 45-7000)
52601), the lower potter's wheel and the leading rib are connected and supported by a support bone, the upper potter's wheel and the said support bone are pivotally connected by a middle rib, and the base end of the leading rib is connected to the upper potter's wheel. The frame structure is indirectly connected and supported, and the length of the frame in the open state is longer than the length of the frame in the closed state. Therefore, in this Western umbrella, the unfolded diameter of the umbrella cloth is enlarged when the umbrella is opened, and the intended function of the umbrella can be increased. However, since this Western umbrella has a structure in which the leading rib is indirectly connected and supported to the upper potter's wheel as described above, the shape of the umbrella cloth when the umbrella is opened does not have a beautiful appearance, and the frame structure is complicated.
Moreover, this method is limited to folding type Western umbrellas, and therefore, there is a problem in that the work of folding the umbrella cloth at the same time as folding is extremely complicated.

In addition, as a device that made it possible to expand the unfolded diameter of the umbrella cloth in the open state, for example,
The one described in the -1964 publication is publicly known. This conventional Western umbrella consists of a rib that is pivoted to the upper potter's wheel and a slide bone that is slidably held on the groove bone, and the base of the slide bone is pivoted to the support bone.
The middle part of the perpendicular bone and the groove bone were connected by a bending link, and a stopper was provided at the tip of the groove bone to prevent the sliding bone from falling out.

Western umbrellas with the above structure use a stopper to prevent the groove bones and slide bones from falling off when the umbrella is opened, and the stopper is easily subjected to impact force when the umbrella is opened, and even in strong winds, the stopper is not exposed to excessive force. It was easy to apply force, and the stopper easily fell off.

That is, in this conventional western umbrella, the bending link does not function in any way to maintain the umbrella in the open state, but only functions to pull up the sliding rib during the closing operation, which poses a problem in terms of strength.

Further, in the above-mentioned Western umbrella, the base of the slide rib cannot be approached close to the upper potter's wheel when the umbrella is closed, so the appearance of the umbrella cloth when the umbrella is closed is not beautiful.

Therefore, the present invention has a strong frame structure and
To provide a Western umbrella that can withstand a large force when opened and whose umbrella cloth has a beautiful appearance when closed. Furthermore, the purpose of this invention is to
The purpose of this Western umbrella is to simplify the structure of the extendable main rib as much as possible, and to facilitate the installation work, thereby reducing costs and weight of the umbrella.

In order to achieve this purpose, the present invention is characterized by having a main bone whose proximal end is pivoted to an upper potter's wheel that is fixed to the center bar, and a proximal end to a lower potter's wheel that can be raised and lowered to the center bar. In a Western umbrella with a frame structure, which has pivotally attached supporting bones, and the tips of the supporting bones are pivotally connected to the middle part of the main ribs:
A first structure in which the main ribs are superimposed on each other so as to be able to expand and contract with each other.
It consists of an outer rib and a second outer rib, the proximal end of the first outer rib is pivotally connected to the upper potter's wheel, the tip of the first outer rib and the middle part of the supporting bone are connected by one interlocking bone, and the second outer rib is A midway portion is pivotally attached to the end of the support bone, and a holder is provided at the proximal end of the second rib, an umbrella cloth is attached to the holder, and the attachment portion and the upper wheel are connected to each other. The space between the first and second ribs is configured as a surplus part of the umbrella cloth, and the tip of the first rib is fixed to a guide member slidably mounted on the outer peripheral surface of the second rib, and the interlocking rib is pivotally attached to the guide member. It consists of:

The present invention will be described in detail below with reference to the illustrated embodiments. As shown in FIG. 1 showing the closed state and FIG. 2 showing the open state, the present invention is preferably an automatic opening umbrella called a jump umbrella. will be implemented. The Western umbrella has a main rib 3 fixed to the middle rod 1 and whose base end is pivoted to the upper potter's wheel 2.
and a support bone 5 whose proximal end is pivoted to a lower potter's wheel 4 that can be raised and lowered to the center rod 1, and the tip of the support bone 5 is pivoted to the middle part of the main rib 3 to form a frame structure. .

The middle rod 1 consists of a first middle rod 1a on the proximal end side that is telescopically connected and is extendable and retractable, and a second middle rod 1b that is slidably inserted into the first middle rod 1a. Spring receivers 6a, 6 are formed of divided intermediate rods and are fixed to the first intermediate rod 1a and the second intermediate rod 1b, respectively.
A compression spring 6 is interposed between b, and the spring 6
The middle rod 1a and the second middle rod 1b are urged in the direction of extension. The second middle bar 1b has an upper potter's wheel 2 fixed to its upper end, and a cap 7 is fixed above the upper potter's wheel, and a middle bar fixing repellent 8 is installed inside the second middle bar 1b. ing. A cushion spring 9 is wound around the second center rod 1b below the upper wheel. On the other hand, the first middle rod 1a has a proximal end 10 at its base end.
is fixed, and the first center rod 1 is positioned near the hand 10.
A jump repellent 11 is installed inside the lower end of a. This repellent 11 is for locking the lower potter's wheel 4, and is equipped with a button 12, and a locking claw 13 can freely come out and retract from a slit in the first center rod 1a. Thus, the middle rod fixed repellent 8 is attached to the second middle rod 1.
It has a claw piece 8a that can freely protrude and retract from the circumferential surface of the second middle rod 1b, and urges the claw piece 8a to protrude from the circumferential surface of the second middle rod 1b. The claw piece 8a of the repellent 8 when inserted into the first middle rod 1a
a locking slit 14 that receives and locks the second center rod 1;
A locking slit 15 is formed in each of the first inner rods 1a to receive and lock the pawls 8a in the same way when the claws 8a are extended from the first inner rod 1a by the compression spring 6.

The lower wheel 4 is composed of a first lower wheel 4a and a second lower wheel 4b, and the proximal end of the support bone 5 is pivotally attached to the first lower wheel 4a. 2nd lower wheel 4b
is located below the first lower wheel 4a, and the body 16 of the first lower wheel 4a is inserted into the cylindrical part 17 of the second lower wheel 4b, and between the first lower wheel 4a and the second lower wheel 4b. A jump spring 18 is interposed and compressed. The second lower potter's wheel 4b has a slit 19 that receives and locks the locking claw 13 of the jump reel, and the second lower potter's wheel 4b has a slit 19 that receives and locks the locking claw 13 of the jump reel.
The proximal end of is pivotally attached. The connecting bone 20 has its tip pivotally connected to the supporting bone 5.

The main rib 3 is composed of a first main rib 3a and a second main rib 3b which are superimposed on each other so as to be able to expand and contract with each other.
The proximal end of the main rib 3a is pivotally connected to the upper potter's wheel 2, while the pivot piece 21 is fixed to the middle part of the second main rib 3b.
The tip of the above-mentioned support bone 5 is pivotally connected to. In the illustrated embodiment, the first main rib 3a and the second main rib 3b are telescopically slidable, and the second main rib 3b is formed to have a groove shape in cross section, and the first main rib 3a is connected to the second main rib 3b.
It is inserted into b. As shown in an enlarged view in FIG. 3, the second main rib 3b has a guide member 22 slidably mounted on its outer peripheral surface, and a pivot piece 22a protruding from the guide member is attached to the second main rib 3b. The tip of the first rib 3a protruding from the groove-shaped opening is pivoted. Also, a cap-shaped holder 23 is provided at the base end of the second rib 3b.
The first rib 3a is inserted into the holding body 23 and is slidably held therein. This holder 23 is provided with a locking portion 23a for a thread 28 that secures the umbrella cloth. The first master rib 3a and the middle part of the support bone 5 are connected by the interlocking bone 24, and the interlocking bone 24
The base end is pivoted to a pivot piece 25 in the middle of the support bone 5, and the tip is pivoted to the pivot piece 22a of the guide member 22 to which the tip of the first main rib 3a is fixed via the same axis. be done.

The umbrella cloth 27 is held between the upper potter's wheel 2 and the cap 7, and is fixed to the locking part 23a of the holder 23 of the second main rib 3b via a thread 28, as well as attached to the pivot of the second main rib 3b. The second rib 3 on the distal side of the attachment piece 21
b with a conventionally known thread 29 or the like. On this occasion,
The umbrella cloth 27 is attached to the fixing thread 2 in the closed state (FIG. 1).
8 and the upper potter's wheel 2, there is a margin 30. Although not shown, the umbrella cloth 27 includes a well-known band that holds the umbrella cloth around the frame when the umbrella is closed.

To explain the operation of the western umbrella according to the above embodiment, in the closed umbrella state shown in the first figure, the first middle rod 1a compresses the compression spring 6 and is inserted into the second middle rod 1b, and the middle rod fixed repellent 8 is inserted into the second middle rod 1b. The inner rod 1 is held in a contracted state. The lower wheel 4 is lowered with respect to the middle rod 1, and the locking claw 13 of the jump repellent 11 is locked in the slit 19 of the second lower wheel 4b. In addition, the first lower 4a compresses the jump spring 18,
The main rib 3 and the supporting bone 5 are folded so as to overlap.

To open the umbrella from this state, insert the button 12 of the jumping repellent 11. When the second lower potter's wheel 4b is disengaged from the jump repellent 11, the first lower potter's wheel 4a and the second lower potter's wheel 4b, which are connected by the support bone 5 and the connecting bone 20, are moved by the action of the jump spring 18. By moving in the direction of separation, the lower potter's wheel 4 rises along the middle rod 1, and the supporting ribs 5 push up the main rib 3 to automatically open the umbrella. At this time, the first lower potter's wheel 4a collides with the cushion spring 9, and the impact is alleviated (FIG. 2). During this automatic umbrella opening, when the first lower potter's wheel 4a passes through the middle rod fixing repellent 8 while rising, the claw piece 8a is pushed inward through the locking slit 14 of the first middle rod 1a. Therefore, as a result, the first center rod 1a and the second center rod 1
b is released from the fixed state, and the first
The center rod 1a is extended, and after the extension, the claw piece 8a of the center rod fixing repellent 8 is engaged with the locking slit 15 to fix the extended state (FIG. 2).

Due to this opening, the main rib 3 is expanded as shown in FIGS. 4 and 5. That is, FIG. 4 shows the framework in the closed state, and FIG. 5 shows the framework in the open state.
When the umbrella is opened, the angle of the support bone 5 with respect to the center rod 1 changes from an acute angle to a nearly right angle, and accordingly, the interlocking bone 24 opens and the guide fixed to the tip of the first main rib 3a along with the tip of the interlocking bone 24 opens. The second main rib 3b, which is pivotally attached to the support bone 5, is pulled toward the tip of the main bone with respect to the member 22. Therefore, the second rib 3b is the same as the first rib 3a.
For the guide member 22, the holder 23 is slid on the first rib 3a, and for the guide member 22, the second rib 3a is slid.
The base end portion of the second rib 3b is slid on the inner surface of the guide member, thereby extending the second rib 3b in the axial direction. As the main rib 3 expands, the holder 23 of the second main rib 3b to which the umbrella cloth 27 is fixed moves, thereby extending the margin 30 of the umbrella cloth. Therefore, the overall length L of the main rib 3 is equal to the length La in the closed state shown in FIG.
The length Lb in the open state shown in FIG. 5 is set to satisfy La<Lb.

On the other hand, to close the umbrella again, the second lower roller 4b is grasped and lowered along the center pole 1.
When the lower wheel 4b passes through the center rod fixing slot 8, the claw piece 8a of the slot is pushed in and disengaged from the slit 15, so that the first center rod 1a is connected to the second center rod 1b.
The claw piece 8 is inserted and contracted against the compression spring 6.
The center rod 1 is fixed in a contracted state by the engagement of the other slit 14. As the lowering of the lower wheel 4 causes the support 5 to make an acute angle with respect to the center rod 1, the support 5 and the connecting rib 20 overlap, and as a result, the first lower wheel 4a moves against the jump spring 18 to the second lower wheel 4b.
It is inserted into the cylindrical portion 17 of the lower wheel 4b.
The locking claws 13 of the jumping spout 11 engage with the slits 19 of the second lower roller 4b to fix the lower roller 4 in the lowered position.
As shown in Fig. 4, the second rib 3b slides toward the base end of the rib relative to the first rib 3a, contracting the rib 3. At this time, the holder 23 of the second rib 3b slides on the first rib 3a, lifting the extra portion 30 of the umbrella cloth 27 above the upper spool 2 (Fig. 1). It is preferable to form a fold in this extra portion 30 beforehand, so that the fold will reduce the extra portion 30.
It is possible to lift the items in an orderly manner.

FIG. 6 shows a comparative example of the structure of the main rib according to the above embodiment, in which a second main rib 3b' is inserted into the first main rib 3a', and the telescopic connection mode is opposite to that of the above embodiment. . Both the first rib 3a' and the second rib 3b' have a groove-shaped cross section, and the connecting member 22' is fixed to the outer periphery of the tip of the first rib 3a' which is externally covered by the second rib 3b'. The tip of the interlocking bone 24' is pivotally connected to a pivot piece 22a' that projects from the member. Further, a guide member 23' that can freely slide around the outer circumference of the first rib 3a' is provided, and a tongue piece 23b' protruding from the guide member is used to guide the second rib 3b' that protrudes from the groove-shaped opening of the first rib 3a'. The proximal end is fixed. According to this comparative example, when the umbrella is opened from the closed state,
The interlocking bone 24' is the connecting member 2 at the tip of the first master rib 3a'.
The second main rib 3b' is pulled in the distal direction with respect to the second main rib 2' via the support bone 5', and the second main rib 3b' is extended by sliding the guide member 23' on the circumferential surface of the first main rib 3a'. Thus, the intended purpose of the present invention can be achieved in the same manner as in the above embodiments.
However, when using this comparative example, the first
It is not easy to assemble the main rib 3a' and the second main rib 3b'. When closing the lid and assembling the guide member 23'
is set on the outer periphery of the first rib 3a', and the connecting member 2
The first rib 3a' to which the ribs 2' are fixed is fitted onto the second rib 3b', and in this assembled state, the second rib 3a' is fixed to the second rib 3b'.
The proximal end of the main rib 3b' must be pivoted to the tongue piece 23b' of the guide member 23', and this work is extremely complicated.

In contrast to such a comparative example, according to the embodiment of the present invention, a cap-shaped holder 23 is loosely inserted in advance around the outer periphery of the first rib 3a, and a guide member 22 is interlocked with the tip of the first rib 3a. After fixing coaxially with the bone 24 and inserting the second main rib 3b between the guide member 22 and the first main rib 3a in this state, the holding body 23
It is sufficient to cover the proximal end of the second rib 3b and fix it by caulking, welding, etc.
The work of assembling the main rib 3a and the second main rib 3b is extremely easy. Further, as shown in the figure, the first rib 3a can be made of wire, which is advantageous in reducing the weight of the frame.

As a result of the present invention configured as described above, the main rib 3 is expandable and retractable, and the second main rib 3 is moved by the interlocking rib 24.
b is formed so that it automatically extends from the closed state to the open state relative to the first rib 3a.
The unfolded diameter of the umbrella cloth 27 can be expanded when the umbrella is opened, which is excellent for increasing the intended function of the umbrella. Furthermore, when the umbrella is closed, the main rib 3 is automatically retracted by the interlocking rib 24, making it compact and convenient to carry. Since the main rib 3 can be contracted in accordance with the rod 1, the appearance in the folded state can also be made neat. Furthermore, by the linear expansion and contraction movement of the main rib 3 itself, the umbrella can be expanded or contracted extremely smoothly and in a very stylish and smart manner. Moreover, since it becomes possible to form the extra portion 30 of the umbrella cloth 27 in the small diameter portion of the cloth 27, that is, in the center of the cloth 27, when the umbrella cloth 27 is closed, the umbrella cloth 27
You can also fold the 7 with ease.

Further, according to the present invention, without fundamentally changing the frame structure of a conventional Western umbrella, the main rib 3 is divided into a first main rib 3a and a second main rib 3b which are mutually extendable and slidable, and the interlocking rib 24 It can be implemented with a simple configuration of providing a
A slidable guide member is provided on the outer peripheral surface of the second rib, and the tip of the first rib and the tip of the interlocking rib are connected to the guide member, so that the rib expands and contracts as the umbrella opens and closes. It is excellent in that the movement can be performed very smoothly through the guide member, and furthermore, by having a structure in which the tips of the first master rib and the interlocking bone are both pivoted to the pivot piece of the guide member when inserting the bone. Easy to incorporate. Furthermore, as described above, the entire umbrella cloth 27 from the upper potter's wheel 2 to the outer periphery of the cloth is supported by the main rib 3, so that the shape when the umbrella is opened is beautiful, and as in the above embodiment, the umbrella cloth 27 has a beautiful shape. By configuring the margin part 30 to be lifted, the work of folding the umbrella cloth when the umbrella is closed is facilitated, and the appearance of the umbrella cloth in the closed state is made beautiful.

In addition, since the end of the first rib and the middle part of the support bone are connected by one interlocking bone, this interlocking bone prevents the second rib from falling off when the umbrella is opened, and when the umbrella is opened, Since the movement of the second rib is prevented, the strength is excellent, and the effect is extremely remarkable.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a western umbrella according to an embodiment of the present invention in a closed state, FIG. 2 is a vertical cross-sectional view showing the umbrella in an open state, and FIG. 4 and 5 are side views sequentially showing the movement of the bones from the closed state to the open state, and FIG. 6 is an enlarged sectional view showing the main parts of a comparative example with respect to the embodiment of the present invention. 1... Middle stick, 2... Upper potter's wheel, 3... Outer bone, 3
a...First rib, 3b...Second rib, 4...Lower potter's wheel, 5...Spin bone, 22...Guide member, 23...
Holding body, 24... Interlocking bone, 27... Umbrella cloth, 28...
...Thread, 30...Extra section.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. It has a main bone whose proximal end is pivoted to an upper potter's wheel that is fixed to the center rod, and a support bone whose proximal end is pivoted to a lower potter's wheel that can be raised and lowered to the center rod, In a Western umbrella with a frame structure in which the tips of the supporting ribs are pivotally connected to the midpoints of the main ribs: The proximal end of the first rib is pivotally attached to the upper potter's wheel, the tip of the first rib and the middle part of the spine are connected by one interlocking bone, and the middle part of the second rib is pivoted to the end of the spine. and has a holder at the proximal end of the second rib,
An umbrella cloth is attached to the holder, the space between the attachment part and the upper potter's wheel is configured as a margin of the umbrella cloth, and the first A Western umbrella characterized in that the tips of the main ribs are fixed and the interlocking ribs are pivotally connected to the guide member. 2 The second rib is formed with a groove-shaped cross section, while the first
A master rib is telescopically inserted into the second master rib so as to be telescopically telescopic with respect to the second master rib, and the guide member has a pivot piece projecting thereon and interlocks with the tip of the first master rib that protrudes from the groove-shaped opening of the second master rib. The umbrella according to claim 1, which is a registered utility model, characterized in that the tip of the bone is pivoted to the pivot piece. 3. The second main rib fixes a holding body to the proximal end, and the first main rib is inserted into the holding body and slidably held, and the holding body has a locking part for the thread that fixes the umbrella cloth. The umbrella according to claim 2 of the utility model registration claim, characterized in that the umbrella comprises: