JPH0622839A - Turning connection structure of two members and manufacture of its structure - Google Patents

Abstract

PURPOSE:To obtain the connection structure of two members, which has a smart external appearance, can join easily two members so as to be turntable, and also, prevents these two members from being easily detached, and moreover, can form easily a mold. CONSTITUTION:A pair of left and right turning shafts 41, 42 provided in a first member 4 are fitted in from both ends of a holding hole 12 provided in a second member 11, and both the members 4, 11 are connected so as to be turntable. In each of the turning shafts 41, 42, detaining parts 43, 43 protruded in the diameter outside direction are provided, and in the holding hole 12, left and right detaining parts 13, 14 protruded inward in the diameter direction are provided, and both the detaining parts 43, 43, 13 and 14 are engaged. A pair of left and right detaining parts 13, 14 of this holding hole 12 are configured in positions being different from each other in the peripheral direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-member rotary connection structure and a method for manufacturing the structure. The rotating connection structure of the two members is, for example, a joint structure of rotating parts of a clothes hanger, a joint structure of rotating parts of a hanger for suspending a plurality of clothes hangers, or a handle of a bag. It can be used as a structure when attached to the bag.

[0002]

2. Description of the Related Art Conventional hangers shown in FIGS. 8 and 9 are known. In this hanger, question mark-shaped hanging portions 203, 203 are rotatably connected to both ends of a support portion 202 having a plurality of insertion holes 201. Then, the hanging portions 203, 203 are hooked on a string or the like to be hung, and a plurality of normal clothes hangers are hung on the support portion 202. More specifically, it is adapted to be hung by passing through each of the insertion holes 201 of the support portion 202 through a question mark-shaped hanging portion of an ordinary clothes hanger. However, in the connecting structure of the supporting portion 201 and the hanging portion 203, the lower end of the hanging portion 203 is formed into two forks, and the supporting portion 201 is arranged between the two forks, and the rotation pin is attached to them. Two
It is rotatably joined by penetrating 04. As a result, the rotating pin 204 is attached to the hanging portion 203.
There is a problem that it is not smart because it looks like it is at the bottom of the and it gives a rugged feel to the design. Therefore, the inventor of the present application has provided a pair of rotary shafts projecting inward from the forked portion at the lower end of the hanging portion 203 and inserted into the rotary shafts provided in the support portion 201, but in this case, Found that the following problems would occur. First,
When attempting to insert a pair of rotary shafts projecting inward from the bifurcated parts into the rotary shafts provided in the support portion 201, first, the bifurcated parts are opened widely and supported between the projecting rotary shafts. It is necessary to pass through the part 201, and the joining work requires force and labor. Secondly, when many clothes are suspended and a large load is applied, or when an unbalanced load is applied, there is a problem that one rotation shaft comes out from the rotation hole.

[0003]

Therefore, the first invention of the present application has a structure in which two members are rotatably connected, and has a smart appearance in which the rotation shaft and the pin are not visible, and It is an object of the present invention to provide a connection structure in which two members can be easily rotatably joined and the two members are not easily separated. A second invention of the present application is a structure for rotatably connecting two members, and it is an object of the present invention to provide a connecting structure in which the two members are not easily disengaged and the molding is easy. . Further, the third invention of the present application aims to provide a method capable of easily molding the above-mentioned connection structure.

[0004]

The present invention solves the above-mentioned problems by providing the following features. In the first invention of the present application, the pair of left and right rotating shafts 41, 42 provided in the first member 4 are fitted from both ends of the holding hole 12 provided in the second member 11 so that both members 4, 11 are inserted. In a two-member rotational connection structure that is rotatably connected, a pair of left and right rotational shafts 41, 42 are provided with locking portions 43, 43 that project radially outward, and the holding hole 12 is radially inwardly projected. Providing protruding left and right locking portions 13 and 14, both locking portions 43 and 4
The present invention provides a two-member rotary connection structure characterized in that 3, 13, 14 are engaged with each other. In the second invention of the present application, a pair of left and right engaging portions 13 and 14 provided in the holding hole 12 are arranged at different positions in the circumferential direction from each other. The present invention provides a rotating connection structure of the above. In the third invention of the present application, a pair of left and right rotating shafts 41, 42 provided in the first member 4
Is a two-member rotary connection structure in which the holding holes 12 provided in the second member 11 are fitted from both ends to rotatably connect the both members 4 and 11, and a pair of left and right rotary shafts 41, Two-member rotary connection structure in which locking portions 43, 43 projecting radially outward are provided in each of 42, and left and right locking portions 13, 14 projecting radially inward are provided in the holding hole 12. In the method of manufacturing, the second member 11 is formed by molding two molds, a left mold a and a right mold b. At that time, this left type a
Is provided with a right locking defining portion 14a that forms the right locking portion 14 of the holding hole 12, while the right die b has a left locking defining portion 13b that forms the left locking portion 13 of the holding hole 12. To provide. Then, these right locking defining portion 14a and left locking defining portion 13
By arranging b and b at different positions in the circumferential direction, the left and right engaging portions 13 and 14 of the holding hole 12 are formed at different positions in the circumferential direction. It is a thing.

[0005]

In the present invention, a pair of left and right rotating shafts 41,
42 are provided with locking portions 43, 43 projecting radially outward, respectively, and left and right locking portions 1 projecting radially inward in the holding holes 12.
Since the lock shafts 3 and 14 are provided and the two locking portions 43, 43, 13, and 14 are engaged with each other, the rotary shaft can form a smart appearance without being seen from the outside, and the rotary shaft can be easily pulled out from the holding hole. It can be prevented. Moreover, at the time of molding, the distance between the shaft portions 41 and 42 of the first member 4 is
The thickness may be larger than that at the time of assembly, such as a thickness equal to or slightly larger than the thickness of the second member 11. In this way, the second member 11 can be easily inserted between the shaft portions 41 and 42 during assembly. And each shaft part 4
1, 42 are aligned with the holding holes 12, and each shaft portion 41, 4
Hold 2 closer together. Then, each shaft 4
1, 42 are fitted into the holding hole 12 of the insertion portion, and both locking portions 13, 14 of the holding hole and the locking portions 43 of the shaft portions 41, 42 are engaged with each other to maintain the shaft support state. The present invention realizes a joined state that can be rotated very easily. Then, the pair of left and right engaging portions 4 provided in the holding hole 12 described above.
By arranging 3, 43 at different positions in the circumferential direction, molding by the two molds a, b becomes possible. That is, the left die a is provided with the right locking portion 14 of the holding hole 12.
Is provided with the right locking defining portion 14a, while the right mold b is provided.
Is provided with a left locking defining portion 13b that forms the left locking portion 13 of the holding hole 12, and the right locking defining portion 14a and the left locking defining portion 13b are arranged at different positions in the circumferential direction. To do. With this configuration, the left and right molds a and b can be opened and closed in a state where the right locking defining portion 14a and the left locking defining portion 13b are combined.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of a main part of a hanger to which the joining structure of one embodiment is applied, and FIG. 2 shows left and right locking portions of a holding hole in the joining structure, (A) shows the insertion portion on the left side. FIG. 3B is a perspective view of the insertion portion viewed from the right side. FIG. 3 is a side view of the hanger, and FIG. 4 is a front view of the hanger.

In this hanger, a question mark-shaped hanging portion 2 is rotatably connected to both ends of a horizontally long rod-shaped support portion 1. This hanger is configured so that a plurality of normal clothes hangers for wearing clothes such as jackets and blouses can be hung, and a plurality of insertion holes 1a are formed in the support portion 1. . Insert portions 11 are formed at both ends of the support portion 1, and holding holes 12 are formed in the insertion portions 11. A plurality of (three in FIG. 2) left locking portions 13 and a plurality (three in FIG. 2) right locking portions 14 are formed in the radial direction at the left and right ends of the holding hole 12. . Both locking parts 13, 14
Are formed at different positions in the circumferential direction, as shown in FIG. More specifically, each left locking portion 1
3 has a length of 60 degrees and is formed every 60 degrees, while each right locking portion 14 also has a length of 60 degrees,
It is formed every 60 degrees, and both 13 and 14 are formed by being displaced by 60 degrees. As shown in FIG. 1, it is preferable that the outer end surfaces of the both locking portions 13 and 14 are tapered surfaces 15, and the inner end surfaces of both the locking portions 13 and 14 are
It is preferable to use the inverted hook surface 16.

Next, the hanging part 2 has a hook part 3 and a pair of hanging parts 4, 4 arranged at the lower end of the hook part 3. The hook portion 3 is for hanging the entire hanger by hanging it on a string or a nail, and has a question mark shape. The lower end of the hook portion 3 has a rotary shaft portion 31 and a shaft having a diameter slightly larger than the rotary shaft portion 31. And a mating portion 32.

On the other hand, each of the pair of hanging parts 4, 4 has a flat plate shape, and the upper ends thereof are connected by a connecting part 5. A cylindrical member 52 is fitted and fixed in the connecting portion 5, and a rotary shaft portion 31 of the hook portion 3 is rotatably fitted in a through hole 51 of the cylindrical member 52. And
The inner diameter of the through hole 51 is set to be slightly larger than the outer diameter of the engaging portion 32, thereby preventing the hook portion 3 from coming off the connecting portion 5. In order to fit the rotary shaft portion 31 having the engaging portion 32 into the through hole 51, the engaging portion 32 may be press-fitted and elastically deformed. It is also desirable to provide a slit (not shown) extending in the vertical direction in the rotary shaft portion 31 of the portion 3. By connecting the hook portion 3 to the connecting portion 5 in this manner, the hook 3 can be rotated laterally, which is convenient.
The hook 3 and the connecting portion 5 may be integrally molded.

Near the lower ends of the pair of hanging parts 4 and 4,
A pair of shaft portions 41, 42 are formed so as to project inward. Each of the shaft portions 41 and 42 has a cylindrical shape, and a locking portion 43 is formed at the tip thereof. This locking portion 43
Has a diameter slightly larger than the diameter of the shaft portions 41, 42. It is also desirable that the outer peripheral edge of the tip of the large-diameter locking portion 43 be a tapered surface 45.

Then, the insertion portion 11 is inserted between the pair of hanging parts 4 and 4. This insertion may be performed by elastically deforming the lower ends of both hanging parts 4, 4 so as to open in a V shape from the state at the time of molding, but conversely at the time of molding,
It is preferable that the lower ends of the hanging parts 4 and 4 are formed in a V-shape. Specifically, the distance between the shaft portions 41 and 42 is set to be equal to or slightly larger than the thickness of the insertion portion 11. Then, the shaft portions 41, 4 of the left and right hanging parts 4
2 to the holding hole 12 of the insertion part,
Hold 4 close to each other. Then, the hanging parts 4 and 4 are elastically deformed to the illustrated state, and the shaft parts 4 of the hanging part 4 are
1, 42 are fitted into the holding hole 12 of the insertion portion, and the two locking portions 13, 14 of the holding hole are engaged with the locking portions 43 of the shaft portions 41, 42. By this engagement, the hanging parts 4, 4 are prevented from opening, the state shown in the figure is maintained, and the joined state in which rotation is extremely easy is realized. still,
If the taper surfaces 15 and 45 are formed in the shaft portion 12 and the holding hole 41, the fitting becomes easy.

Thus, the insertion portion 11 is rotatably supported between the pair of hanging parts 4 and 4, and by this rotation, the hanging portion 2 is connected to the support portion 1 so as to be capable of undulating. It is something. Since this insertion portion 11 is supported between the pair of hanging parts 4 and 4, it is held in a well-balanced manner, and even when relatively heavy clothes are hung, its load is
Add evenly to the left and right. Therefore, no unreasonable turning force is applied to both shaft portions 41, 42, and there is no problem of the shaft portion 12 coming off or being deformed or damaged. Moreover, since both the locking portions 13 and 14 of the holding hole and the locking portions 43 of the shaft portions 41 and 42 are engaged with each other, this joining cannot be easily disengaged.

Next, a method of manufacturing the clothes hanger will be described. In the clothes hanger, a mold is used for the support part 1 of the clothes, the main body of the hanging part 2, and the hook part 3, respectively. It can be manufactured by molding a synthetic resin. The manufacturing of each of these parts can be performed by an ordinary molding method using a mold, and the molding method does not require any special explanation. However, regarding the support portion 1, even when the molding method using a mold is adopted, the locking portions 13, 1 are provided on the left and right of the holding hole 12.
Since 4 is provided, a complicated mold is usually required. However, in the present application, as described above, since the positions of the locking portions 13 and 14 are formed so as to be displaced to the left and right in the circumferential direction, it is possible to perform molding using two molds.

FIG. 5 shows the left and right molds a and b for molding the supporting portion 1, and FIG. 6 is a sectional view of the molds a and b closed. However, the portion for molding the insertion portion 11 formed at the end of the support portion 1 is enlarged and illustrated. The left and right molds are the outer surface defining portions 17a, 1 that define the outer surface 17 (see FIG. 2) of the insertion portion 11.
7b and side surface defining portions 18a and 18b that define the left and right side surfaces 18 (see FIG. 2). Further, the hole center defining portions 12a, 1 for defining the center of the holding hole 12 of the insertion portion.
2b and.

The left die a is formed with three right locking defining portions 14a for defining the right locking portion 14 of the holding hole 12. The tip of the right locking defining portion 14a is a tapered surface 16a, and the tapered surface 16a forms the reverse hook surface 16 of the locking portion 14. On the other hand, right mold b
In this, three left locking defining portions 13b for defining the left locking portion 13 of the holding hole 12 are formed. The tip of the left locking defining portion 13b is also a tapered surface 16b, and the tapered surface 16b forms the reverse hook surface 16 of the locking portion 13.

When the molds are closed, the left locking defining portions 13b are fitted between the right locking defining portions 14a to form a cylindrical shape as a whole. The cylindrical outer peripheral surface defines the inner peripheral surface of the holding hole 12. Then, as described above, the tapered surface 16a formed at the tip of the right locking defining portion 14a of the left die a defines the inverted hook surface 16 of the right locking portion 14. On the other hand, the tapered surface 16b formed at the tip of the left locking defining portion 13b of the right mold b defines the reverse hook surface 16 of the left locking portion 13. In addition, between the three left type right locking defining portions 14a,
Since the tapered surface 15a is formed and the tapered surface 15b is formed between the three right-type left locking defining portions 13b, these tapered surfaces 15a and 15b are formed on both the left and right locking portions. The taper surface 15 of the outer end surfaces of 13 and 14 is formed. As described above, in the present invention, although the locking portions 13 and 14 are provided on the left and right sides of the holding hole 12, the positions of the left and right locking portions 13 and 14 are formed so as to be displaced in the circumferential direction. Therefore, it is possible to perform molding with two molds.

Although the hanger has been described in this embodiment, this joint structure can be used in various fields in which two members are rotatably joined, and for example, in a normal clothes hanger. Alternatively, as shown in FIG. 7, the present invention can be applied to the case where the handle 101 of the bag is attached to the attachment plate 103 of the bag body using the C-shaped ring 102. More specifically, when the structure of the present invention is applied with the end of the C-shaped ring 102 as the rotation axis and the hole 104 of the mounting plate 103 of the bag body as the holding hole, the C-shaped ring 102 has the hole 10.
You can't easily get out of 4.

[0018]

The first invention of the present application has a structure in which two members are rotatably connected to each other, and has a smart appearance without showing the rotation shaft and the pin, and easily rotates the two members. It is possible to provide a connection structure that can be joined as much as possible and that the two members do not easily come off.
The second invention of the present application has a structure in which two members are rotatably connected, and the two members do not easily come off,
Moreover, it is possible to provide a connection structure that can be easily molded. Further, the third invention of the present application was able to provide a method capable of easily molding the above-mentioned connection structure.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of a main part of a hanger to which a joining structure according to an embodiment of the present invention is applied.

FIG. 2A is a perspective view of the insertion part of the hanger as viewed from the left, and FIG. 2B is a perspective view of the insertion part of the hanger as viewed from the left.

FIG. 3 is a side view of the hanger.

FIG. 4 is a front view of the hanger.

FIG. 5 is a perspective view showing a state in which left and right molds for molding the insertion portion of the hanger are opened.

FIG. 6 is a cross-sectional view of a state in which left and right molds for molding the insertion portion of the hanger are closed.

FIG. 7 is a perspective view showing a mounting structure of a bag handle to which the joining structure of the present invention can be applied.

FIG. 8 is a front view of a conventional hanger.

FIG. 9 is a side view of a conventional hanger.

[Explanation of symbols]

 4 Hanging part (1st member) 11 Insertion part (2nd member) 12 Holding hole 13 Left locking part of holding hole 14 Right locking part of holding hole 13b Left locking regulation part 14a Right locking regulation part 41 Rotating shaft 42 Rotating shaft 43 Locking part of rotating shaft a Left type b Right type

Claims (3)

[Claims] 1. A pair of left and right rotating shafts (4) provided on the first member (4).
Rotational connection structure of two members in which (1) and (42) are fitted from both ends of a holding hole (12) provided in the second member (11) to rotatably connect both members (4) and (11). In the above, the pair of left and right rotary shafts (41) and (42) are provided with locking portions (43) and (43) projecting radially outward, and the holding holes (12) are provided with left and right engaging portions projecting radially inward. Stops (13) (14) are provided, and both locking parts (43) (43) (13)
A two-member rotary connection structure characterized in that (14) is engaged. 2. A pair of left and right engaging portions provided in the holding hole (12)
The two-member rotary connection structure according to claim 1, wherein (13) and (14) are arranged at different positions in the circumferential direction. 3. A pair of left and right rotary shafts (4) provided on the first member (4).
Rotational connection structure of two members in which (1) and (42) are fitted from both ends of a holding hole (12) provided in the second member (11) to rotatably connect both members (4) and (11). The left and right rotating shafts (41) and (42) are provided with locking portions (43) and (43) projecting radially outward, respectively, and the retaining holes (12) project radially inwardly. In the method for manufacturing the two-member pivotal connection structure having the locking portions (13) and (14) of the above, the second member is used as a left mold (a) and a right mold (b). Formed by molding, the left die (a) is provided with a right engagement regulating portion (14a) that forms the right engagement portion (14) of the holding hole (12), and the right die (b) is The holding hole (12) is provided with a left locking defining portion (13b) that forms the left locking portion (13), and these right locking defining portion (14a) and left locking defining portion (13b) are connected to each other. By arranging at different positions in the circumferential direction, the left and right engaging portions (13) (14) of the holding hole (12) are formed at different positions in the circumferential direction. A method for manufacturing a two-member pivotal connection structure characterized in that