JP2659300B2 - Umbrella bone connection member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an umbrella bone connecting member for improving the assemblage of the umbrella bone and the useful life of the umbrella bone.

[0002]

2. Description of the Related Art Umbrellas use a large number of bones which are connected and assembled together. Therefore, in order to improve the productivity of the umbrella, a structure that allows easy connection and assembly of the bones is desired. Also, since a considerably large force acts on the umbrella bone, the umbrella bone needs to have considerable strength. In particular, since this strength is concentrated on the connecting portion, the connecting portion of the umbrella bone requires both assemblability and strength.

As shown in FIG. 7, in the conventional assembling of an umbrella bone, the receiving bone 4 is flattened at one end and a wire 5 is inserted through a hole formed in the flat part of the lower bone.
On the other hand, the rib 3 is flattened at one end and a wire 6 is inserted through a hole formed in the flat portion to be tied and fixed to the upper potter's wheel 2 provided on the shaft 7. The connection between the ribs 3 and the receiving bones 4 was made by inserting the other end of the flattened receiving bones 4 into the brackets 8 provided on the ribs 3, and making holes in the brackets 8 and the other end flat portions of the receiving bones 4. Both are connected to each other through a caulking pin 9 in the hole. Also,
For example, using a connecting member, for example,
The fixing between the umbrella bone and the connecting member disclosed in the publication is performed using an adhesive, and the connection between the main rib and the receiving bone is made by dividing the main bone into two parts and connected by the connecting member, and the connecting member is connected to the connecting member. The connecting member provided at the end of the receiving bone is inserted into the provided bracket, and the connecting member is connected by a caulking pin.

[0004]

In the above conventional example,
In the case of tying the umbrella bone to the upper and lower potter's wheel with a wire and fixing it, insert the end of the umbrella bone into a predetermined place of the potter's wheel after passing the wire through the hole drilled at the end of the required number of umbrella bone,
After that, the wire must be tightened, so that the operation requires skill and there is a problem in productivity. In addition, since the connection between the rib and the receiving bone is performed by a caulking pin, a step of using a machine or a tool for assembling the umbrella is required. For this reason, since the ribs and the receiving bones are first joined together by caulking pins and then tied up with the above-mentioned wire, the work becomes more difficult and there is a problem in terms of productivity. Or, conversely, after fixing the umbrella bone to the potter's wheel with a wire, when connecting the rib and the bone with the caulking pin, the hole was drilled in the bracket provided on the rib and the end of the bone. The operation of manually aligning the hole with the hole and maintaining the state, inserting a small caulking pin through the hole, and caulking the pin with a tool requires considerable skill and is problematic in terms of productivity.

Next, in the structure disclosed in Japanese Utility Model Publication No. 1-225925, the ribs are divided into two parts, so that the number of ribs is doubled, and many man-hours are required for connection to the connecting member. However, there is a problem that the assemblability is poor. In addition, since the connecting member is fixed to the umbrella bone with an adhesive, its workability is poor and there is a problem in productivity of the umbrella bone. Further, since the connection between the rib and the receiving bone is performed by a caulking pin, there is a problem similar to the case where the wire is used.

Next, regarding the strength, since all the forces in the axial direction of the receiving bone 4 are received by the caulking pin, a considerable strength is required for the caulking pin and the end of the receiving bone is required. Since the portion is flat, the axial force of the receiving bone 4 acts as a concentrated stress on this flat portion, and there is a problem in terms of the service life.

The present invention has been made in view of the above circumstances, and provides an umbrella bone connecting member which is further improved in terms of assemblability and service life as compared with the conventional example.

[0008]

According to the present invention, there is provided means for providing two halves of a connecting member having a concave groove into which an umbrella bone is fitted. An engaging portion is formed on the inner surface of the groove, and an engaging portion is provided on the outer periphery of the umbrella bone, where the engaging portion formed on the inner surface of the concave groove of the connecting member is engaged, and the two connecting members are combined. And a fixing member having an inner diameter formed at one end and an inner diameter fitted with the outer diameter of the umbrella bone at the other end.

[0009]

Since the present invention is constructed as described above, the umbrella bone is fitted into the concave groove into which the umbrella bone is fitted so that the umbrella bone is sandwiched by the half-sized connecting member. Engaging the engaging portion formed on the inner surface of the concave groove with the engaging portion formed on the outer periphery of the umbrella bone, and fitting the fixing member to the outer diameter of the connecting member in a state where the two connecting members are combined. Thereby, the two connecting members are integrated with the umbrella bones therebetween. In this way, by integrating the half connecting members with the fixing members, the umbrella bone and the connecting members are fixed by the locking portions and the engaging portions.

[0010]

An embodiment of the present invention will be described below. First, the outline of the connecting member will be described with reference to FIG. 4 which is an exploded view of the umbrella bone. The connecting member is fixed to the end of the rib 13 and the receiving bone 16 with the connecting member 12 fixed in the middle of the rib 13. There are two types of connection members 10. Each of the connecting members 10 and 12 is a half in which a concave groove 14 is formed according to the outer diameter of the rib 13 and the receiving bone 16, and a locking portion 15 is provided on the inner surface of the concave groove 14. ing. On the other hand, the rib 13 and the receiving bone
An engaging portion 17 with which the engaging portion 15 is engaged is provided at a predetermined position on the reference numeral 16.

In FIG. 1, a distal end portion 18 of the connecting member 10 is formed in a thin and flat plate shape, and a pin 19 is provided on the distal end portion 18 in a direction perpendicular to the plane. The fixing member 11 has an inner diameter 21 and an inner diameter 22, and the inner diameter 21 is a half connecting member.
10 is substantially equal to the outer diameter of the connecting member 10 when the engaging portion 17 and the engaging portion 17 are engaged and sandwiched the receiving bone 16, and the inner diameter 22 is the outer diameter of the receiving bone 16. They are almost equal. Reference numeral 20 denotes a flange formed on the outer surface of the connection member 10.

As shown in FIG. 1 to FIG.
A bracket 23 is formed at a substantially intermediate portion of the bracket. The bracket 23 is parallel to the half surface 26 of the
The inner surface side 25 is provided at the tip of the connecting member 10 when the half-divided connecting member 12 is fitted.
18 are formed to have a gap substantially equal to the combined thickness. The bracket 23 has a hole 24 into which the pin 19 is fitted.

Next, the potter's wheel 27 will be described with reference to FIG. 4. The potter's wheel 27 is composed of an inner ring 28 and an outer ring 29.
First, a cylinder 34 is provided on the inner ring 28.
The collar 30 is formed in the horizontal direction at the position of the height of H from the lower end of. This height H is substantially equal to the diameter of the pin 19 shown in FIG. The collar 30 has notches 31 formed in accordance with the number of umbrella bones. The width of the notch 31 is shown in FIG.
Is approximately equal to the combined thickness of the distal end portions 18 of the connecting member 10 shown in FIG.

On the other hand, a cylinder 35 is provided on the outer ring 29,
The outer ring cylinder 32 having a bottom is provided integrally with the cylinder 35. The outer ring cylinder 32 also has cutouts 33 corresponding to the number of umbrella bones. The width W of the notch 33
Is substantially equal to the combined thickness of the distal end portions 18 of the connecting member 10 shown in FIG. The inner diameter of the cylindrical body 35 is large enough to allow the shaft 7 shown in FIG. 7 to be inserted.

Next, in the relationship between the inner ring 28 and the outer ring 29,
The inner diameter of the cylindrical body 34 of the inner ring 28 is large enough to allow the cylindrical body 35 of the outer ring 29 to pass therethrough, and the outer diameter d of the collar 30 of the inner ring 28 is substantially equal to the inner diameter D of the outer ring cylindrical body 32 of the outer ring 29. Are equal. Thus, when the cylinder 35 of the outer ring 29 is inserted into the cylinder 34 of the inner ring 28, the cylinder 35 of the outer ring 29 is inserted into the cylinder 34 while being reduced in diameter by the slit 36, and the lower end of the cylinder 34 is When abutting against the bottom of 32, the flange portion 37 formed at the top of the cylindrical body 35 reaches the top of the cylindrical body 34, and the cylindrical body 35 reduced in diameter at the time of insertion returns to the original state, and the two at the flange 37 They are joined together.

The operation of the embodiment constructed as described above will be described below. Referring to FIG.
Assemble the ends. In this assembly, a predetermined number of fixing members 11 are fitted into the ribs 13 and the receiving bones 16.
Next, the engaging portion 15 of the connecting member 10 is aligned with the engaging portion 17 formed on the main rib 13 and the receiving bone 16, and the connecting member 10 is applied in half while sandwiching the rib 13 and the receiving bone 16 so as to be half the connecting member.
Hold 10 together. Then, the fixing member 11 previously fitted is moved in the direction of the arrow in FIG. 4 and the end of the fixing member 11 is inserted into the outer diameter of the connecting member 10. As a result, the connecting member 10 and the connecting member 10 are integrated with each other.
13 and the receiving bone 16 are fixed between the locking portion 15 and the engaging portion 17.

The ends of the rib 13 and the receiving bone 16 are assembled without using an adhesive or a special tool.
The rib 13 and the receiving bone 16 assembled in this manner become an umbrella with a pin 19 formed at the end thereof. Since the assembly of the end of the umbrella bone is a simplified part of the rib 13 and the receiving bone 16, which form the engaging portion 17, the connecting member 10 and the fixing member 11 which are divided in half, it is possible to standardize the assembly. Since the assembling operation is simple, automatic assembling by a machine is possible.

The umbrella bone, in which the ends of the main rib 13 and the receiving bone 16 are assembled in this manner, is then assembled to the wheel 27. In this assembly, the distal end portion 18 of the connecting member 10 is inserted and held in the notch 33 formed in the outer ring cylinder 33, and the slit 31 of the collar 30 provided in the inner ring 28 and the outer ring cylinder 32 provided in the outer ring 29 are formed. While aligning with the slit 33, the outer ring 29 is inserted into the cylinder 34 of the inner ring 28.
Is inserted and the two are integrated. This makes the rib 13
The pin 19 projecting from the tip of the receiving bone 16 is shown in FIGS.
As shown in FIG. 3, the end portion 18 of the connecting member 10 is held in a space portion 38 formed between the bottom of the outer ring cylindrical body 35 and the collar 30 provided at the height of H on the inner ring 28. As shown in FIG. 6, the rib 13 and the receiving bone 16 are swingably connected to the wheel 27 while being fitted between the slits 31 and 33.

Similarly, in assembling the potter's wheel 27 with the ribs 13 and the receiving bones 16, they can be assembled without using an adhesive or a special tool. And since it is a part consisting of the rib 13 having the pin 19 at the end, the receiving bone 16 and the standardized potter's wheel 27, it can be standardized. Assembly is possible.

Next, the assembly of the rib 13 and the receiving bone 16 is shown in FIG.
As shown in FIG. 4 and FIG. 4, the pin 19 is inserted into the hole 24 formed in the bracket 23 of the connecting member 12 while the engaging portion 15 of the connecting member 12 is aligned with the engaging portion 17 formed on the rib 13, and
The half of the connecting member 12 is held together while applying the connecting member 12 so as to sandwich it. Then, the fixing member 11 previously fitted is moved in the direction of the arrow in FIG. 4 and the end of the fixing member 11 is inserted into the outer diameter of the connecting member 12. Thereby, the connecting member 12 of the half is integrated and the connecting member
The rib 12 and the rib 13 are fixed between the locking portion 15 and the engaging portion 17, and the rib 13 and the receiving bone 16 are connected to each other by the pin 19 and the hole 24 formed in the bracket 23. Tip 18 is a bracket
23 so as to be rotatable while being sandwiched therebetween.

Similarly, in assembling the main rib 13 and the receiving bone 16, the assembly is performed without using an adhesive or a special tool. The assembly of the ribs 13 and the receiving bones 16 is a simplified part of the ribs 16 having the engaging portions 17 and the receiving bones 16 having the pins 19 at the ends, the half-connected connecting members 12 and the fixing members 11. Since it is possible to standardize and the assembling operation is simple, automatic assembling by a machine is possible.

Next, the strength will be described. Since the ends of the rib 13 and the receiving bone 16 are reinforced by the connecting member 10 and the fixing member 11, the strength is sufficient. And connecting members
Since the molded article 10 can be processed into an arbitrary shape as a molded product, the pin 19 and the distal end portion 18 can have a sufficient sectional shape in terms of strength. Further, in the connection portion between the rib 13 and the receiving bone 16, all the force applied to the receiving bone 16 is received by the connecting member 12, so that the force does not directly work on the rib 13, and the rib 13 may be bent or There is no breakage.

Also, since no adhesive or special tools or machines are used for assembling the umbrella bone, the connecting members 10 and 11
13, there is no restriction on the material of the receiving bone 16 and the potter's wheel 27, for example, using materials such as glass fiber or reinforced plastic for the main rib 13 and the receiving wheel 16, and the connecting members 10, 11 and the potter's wheel 27 can be molded A suitable resin may be used.

[0024]

As described above in detail, according to the present invention, two half connecting members each having a concave groove into which an umbrella bone is fitted are provided, and the connecting member formed on the inner surface of the concave groove of this connecting member. The stop is formed on the outer periphery of the umbrella bone by engaging the engaging portion to join the two connecting members, and the fixing member is fitted to the connecting member, so that an adhesive or special machine or tool is used. It is possible to assemble the umbrella bone without doing. Then, by providing a pin on the connecting member, an umbrella bone having a pin at an end of the assembled umbrella bone is obtained, and in connection with the umbrella bone and the potter's wheel, the bottom of the outer race cylinder and the inner race are joined. By holding the pin between the collar and the inner ring and the outer ring, the umbrella bone can be assembled without using an adhesive or special machines and tools. In addition, since the umbrella bone is reinforced by the connecting member, there is no problem in strength, and since the umbrella bone and the connecting member have simple shapes, they can be standardized and productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal sectional view showing a state where a main rib and a receiving bone according to an embodiment of the present invention are combined.

FIG. 2 is a cross-sectional view of a part of a joint between a rib and a receiving bone according to an embodiment of the present invention.

FIG. 3 is a partially longitudinal sectional view showing a joint between a rib and a receiving bone according to an embodiment of the present invention.

FIG. 4 is an exploded perspective view of an umbrella bone according to one embodiment of the present invention.

FIG. 5 is a partial vertical cross-sectional view showing the assembled state in FIG. 4;

6 is a cross-sectional view taken along line XX of FIG.

FIG. 7 is a front view partially showing an assembled state of a conventional umbrella bone.

[Description of sign]

 10 connecting member 11 fixing member 12 connecting member 13 rib 14 concave groove 15 locking part 16 receiving bone 17 engaging part 19 pin 21 inner diameter 22 inner diameter 23 bracket 26 half surface 28 inner ring 29 outer ring 30 flange 31 notch 32 outer ring cylinder 33 Notch 34 Tube 35 Tube 36 Slit 37 Flange

Claims (4)

(57) [Claims] 1. Two connecting members, each having a half groove formed with a concave groove into which the umbrella bone is fitted, are provided with a locking portion on the inner surface of the concave groove of the connecting member, and the other is formed on the outer periphery of the umbrella bone. An engaging portion is formed on the inner surface of the concave groove of the connecting member to be engaged with a locking portion. An inner diameter is formed at one end to fit an outer diameter when the two connecting members are combined, and the umbrella is formed at the other end. An umbrella bone connecting member comprising a fixing member having an inner diameter with which the outer diameter of the bone fits. 2. The umbrella bone connecting member according to claim 1, wherein a locking pin protruding substantially perpendicularly is formed on an outer surface on one end side of the connecting member. 3. The connecting member according to claim 1, wherein a bracket protruding from an outer peripheral surface of the connecting member substantially in parallel with a half surface of the connecting member is formed at a substantially central portion of the connecting member. An umbrella bone connecting member, wherein a pin hole is provided in a bracket . 4. A cylindrical body having a flange formed at a top portion and a plurality of slits formed in an axial direction and an outer ring cylindrical body having a bottom integrally provided with a notch portion equal to the number of umbrella bones in the outer ring cylindrical body. An outer ring is formed, a horizontal flange is provided at a predetermined height position from the lower end of the cylindrical body, and a notch portion equal to the number of umbrella bones is provided in the flange to form an inner ring, and the outer diameter of the inner ring flange is set to the outer diameter. An umbrella bone connecting member, wherein the inner diameter of the outer ring cylinder is substantially equal to the inner diameter of the outer ring cylinder, and the inner diameter of the inner ring cylinder is larger than the outer diameter of the outer ring cylinder.