JPH0713934Y2 - Device for attaching small clips - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment device for attaching a clip for small articles to a cylinder such as a writing instrument, a smoking pipe, a lipstick case and the like.

[0002]

2. Description of the Related Art Conventionally, when a clip is attached to a so-called clip cylinder such as a writing instrument, a smoking pipe, a lipstick case, etc., a step of making a clip attachment hole in the clip cylinder and a clip having an attachment piece are performed. A pressing step of digging the attachment piece into the clip attachment hole, and a bending step of bending the attachment piece with a core metal inserted in the clip cylinder to engage the attachment piece with the inner surface of the cylinder. The clip was fixed to the clip cylinder by sequentially performing the steps.

[0003]

[Problems and technical problems of the invention] In the case of the prior art,
Since the three steps of the punching step, the pressing step, and the bending step have to be carried out individually, the mounting step becomes complicated, and it takes a long time, and the productivity is deteriorated. The technical problem of the present invention is to forcibly open the clip mounting hole only by the pressing force of the mounting piece protruding from the clip to the clip cylinder, and to guide the mounting surface on the guide bar formed on the core metal. Is to be bent and engaged with the inner surface of the clip cylinder.

[0004]

[Means for Achieving the Technical Problem] The technical measures taken for achieving the above technical problems are a movable upper mold (100) that can be moved up and down, or a fixed lower mold (which is disposed opposite to the movable upper mold). 200)
A core metal (1) for externally fitting the clip cylinder (A) is provided by a movable upper die (100) so as to be movable downward, and a clip portion of the clip cylinder (A) is provided on the core metal (1). A concave guide surface (1-1) for the mounting piece of the clip (B) is formed in parallel in the circumferential direction at a portion corresponding to the above, and the clip is placed on a portion of the fixed lower mold (200) facing the core metal (1). A surface (201) is formed, and a positioning recess (203) for the clip (B) is formed on a portion of the clip mounting surface facing the guide surface (1-1) for the mounting piece.
And the housing recesses (202) and (202) on both sides of the clip mounting surface (201), and the guide blocks (302) and (302) are vertically movable in the housing recesses, respectively. The clip cylinder (A) which is housed and externally fitted into the core metal (1) is housed in the positioning recess (203) by the guide blocks.
₁ ) is configured so that it can be guided to the clip (B) arranged toward the guide surface (1-1) for the mounting piece, and further, each of the above guide blocks
That is, the compression springs (301) and (301) are interposed between the facing surfaces of the (302) and (302) and the accommodation recesses (202) and (202), respectively.

[0005]

The operation of the technical means of the present invention is as follows. The clip cylinder externally fitted and inserted in the cored bar and the clip having the attachment piece are pressed against each other to be abutted against each other. At this time, the mounting piece breaks through the peripheral wall of the clip cylinder and hits the core metal. Next, the mounting piece is guided by the mounting piece guide surface formed on the core metal and bent and engaged with the inner surface of the clip cylinder.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. The present invention will be described in detail with reference to the mounting device of the first embodiment shown in FIGS. 1 to 5 and the mounting device of the second embodiment shown in FIGS. 6 to 10.

In the first embodiment of the mounting apparatus, the cored bar (1) for externally fitting the clip cylinder (A) is fixed horizontally and linked to an appropriate pressurizing means (not shown) to move it up and down. A movable upper mold (100) that is movable, a fixed lower mold (200) on which the clip (B) is placed and supported, and a core bar of the movable upper mold (100) that moves downward within the fixed lower mold (200). Guide means (300) for guiding the clip cylinder (A) externally fitted to (1) to the clip (B).
Consists of.

The movable upper die (100) is a surface facing the fixed lower die (200), that is, the rear end is screwed to one end of the lower surface, and the core metal (1) is attached.
Of the curved shape along the upper half of the clip tube body (A) externally fitted to the core metal (1) at a portion facing the upper surface area of the tip end part of the core metal (1). Prevention surface (1
01) to form.

The jump-up prevention surface (101) is the core metal (1).
Fitting space of the clip cylinder (A) that is externally inserted
The movable upper mold (10
It is formed on the lower surface of the protruding ridge (103) protruding from
When the clip cylinder (A) is abutted against the clip (B) mounted and supported on the fixed lower mold (200) by moving the (100) downward through the pressurizing means, the reaction force is generated. Make sure that the cylinder (A) does not jump up.

The core metal (1) has concave guide surfaces (1-1) for mounting pieces, which are formed by integrally bending the mounting pieces (b ₁ ) integrally formed with the clip (B), in opposite directions. It is formed adjacent to each other in the circumferential direction at a position corresponding to the clip attachment portion of (A).

The clip cylinder (A) is formed of brass or a plastic material, and is a so-called round or square cylinder such as a writing instrument such as a fountain pen, an outer cylinder of a ballpoint pen, a smoking pipe, and a lipstick case. .

The fixed lower mold (200) is accommodated on both sides of the clip mounting surface (201), leaving a clip mounting surface (201) at a portion facing the core metal (1) of the movable upper mold (100). Recessed (202)
(202) is provided as a recess, and a positioning recess for positioning the clip (B) upward at a portion of the clip mounting surface (201) facing the guide surface (1-1) for the mounting piece of the core metal (1).
(203) is recessed, and the guide means (300) is housed in the housing recesses (202) (202).

The guide means (300) mounts a compression spring (301) by fixing the lower end to each bottom surface of the accommodation recess (202), and the accommodation recess (20) is attached to the upper end of the compression spring (301).
Guide block (302) that is slightly smaller than the planar shape of 2)
It is configured by fixing.

This guide block (302) is normally a compression spring.
The cylinder is located on the housing recess (202) in a protruding shape by the urging force of the (301) and is at the upper end portion facing the lower half of the clip cylinder body (A) that is fitted onto the core metal (1). It has a curved support surface (303) along the body (A) in a concave shape.

The clip (B) is formed of a material such as annealed steel having a hardness higher than that of the clip attachment target cylinder (A). Then, the mounting method of the present invention will be explained based on the mounting apparatus of the first embodiment.

The cylinder (A) for clip is fitted on the core metal (1) and the cylinder (A) is set on the movable upper die (100), and the clip mounting surface of the fixed lower die (200). The clip (B) is set upward in the positioning recess (203) provided in the (201). At this time, the clip cylinder (A) is the movable upper mold.
The clip (B) is non-rotatably supported by the jump-up prevention surface (101) of (100) and the support surface (303) of the guide block (302).
Make sure the mounting surface is exactly facing the clip (B) (Fig. 3). Next, the movable upper die (100) is moved down. At this time, the guide block (302) of the guide means (300) has its movable upper die (10
The pressing force of 0) resists the urging force of the compression spring (301) and causes the clip cylinder (A) to drop while holding the clip cylinder (A) with the jump-up prevention surface (101) (FIG. 4). When the movable upper die (100) further descends, the clip cylinder (A) abuts against the mounting piece (b ₁ ) of the clip (B) and the mounting piece (b ₁ )
The surrounding wall (a ₁ ) is broken through. Wall (a ₁₎ a break through attachment piece (b ₁₎ is attached piece guiding surfaces of the metal core (1) (1-1)
Is bent by being guided by, and is engaged with the inner surface of the peripheral wall (a ₁ ) of the clip cylinder (A), and the attachment of the clip (B) is completed (FIG. 5).

In the first embodiment, the clip cylinder (A) is rotated by the jump-up prevention surface (101) of the movable upper die (100) and the support surface (303) of the guide block (302). Since it descends while being supported improperly, not only is there an advantage that the clip (B) can be accurately attached to the target position, the movable upper die (1
00) is equipped with a jumping-up prevention surface (101), the cylinder (A) for the clip does not float up when the pressure collision with the clip (B) is made, and the guide surface (1-1) for the mounting piece is used. There is an advantage that the mounting piece (b ₁ ) of the clip (B) that breaks through the peripheral wall (a ₁ ) can be reliably guided and firmly engaged with the inner surface of the peripheral wall (a ₁ ).

Second Embodiment The mounting device in the second embodiment is an example in which the core metal (1) is provided on the fixed lower die (200) side.

The fixed lower mold (200) has a clip mounting surface at the center.
Retaining (201), the accommodation recesses (202) for the guide means (300) are provided on both sides, and the guide cylinder (204) is integrally provided on the extension line of the clip mounting surface (201). The guide means (300) is housed in the housing recess (202), and the mandrel (1) is moved up and down on the clip mounting surface (201) using the guiding cylinder (204) as a guide. Support to do so.

The cored bar (1) is cantilevered with its rear end fixed to a fixed block (205) which is loosely fitted to the guide tube (204), and is supported on the bottom surface of the guide tube (204). By fixing the upper end of the compression spring (206) with its lower end fixed to the bottom surface of the fixed block (205), it will descend if the fixed block (205) is pushed against the biasing force of the compression spring (206). To configure.

The fixed block (205) has its upper surface portion fitted to the lower surface of the movable upper die (100) in a fitting manner, and the movable upper die (10) is
When (0) is moved downward via a pressurizing means (not shown), the core metal (1) is automatically made to approach the clip mounting surface (303) against the biasing force of the compression spring (206). Function.

In the second embodiment as well, the movable upper die (1
00) is the same as in the first embodiment described above, the jump-up prevention surface (10
The protruding ridge (103) having 1) is integrally formed. Also,
Reference numeral (206) is a guide elongated hole of the cored bar (1) opened in the guiding cylinder portion (204). Then, the mounting method of the present invention will be explained based on the mounting apparatus of the second embodiment.

The clip cylinder (A) is fitted onto the core metal (1) and set on the cylinder (A), and the fixed lower mold (20)
Positioning recess formed in the clip mounting surface (201) of (0)
Set the clip (B) to (203) facing upward. At this time, the clip cylinder (A) is non-rotatably supported by the jump-up prevention surface (101) of the movable upper die (100) and the support surface (303) of the guide block (302), and the first cylinder Similarly to the embodiment, the surface on which the clip (B) is attached is made to accurately face the clip (B) (FIG. 8). Next, the movable upper die (100) is moved down. At this time, the fixed block (205) descends against the urging force of the compression spring (206) by the pressing force of the movable upper die (100), and the clip cylinder body is externally inserted into the core metal (1). (A) also descends while being held between the jump-up prevention surface (101) and the support surface (303) of the guide block (302) (FIG. 9). Movable upper mold (100)
Mounting piece of the clip when the drop progresses The X manner (B) (b ₁₎ to the clip accommodating cylinder (A) abuts, the mounting piece (b ₁₎ in the peripheral wall (a ₁₎ is topped peripheral wall (a ₁ ) the pierces attachment piece (b ₁₎ is mounted for guiding surfaces of the metal core (1) (1
-1) and bends, engages with the inner surface of the peripheral wall (a ₁ ) of the clip cylinder (A), and the attachment of the clip (B) is completed as in the first embodiment (Fig. Ten).

Also in the case of the second embodiment, similarly to the first embodiment, since the jump-up prevention surface (101) and the support surface (303) of the guide block (302) are non-rotatably supported, The clip (B) can be accurately attached at the intended position, and the presence of the jump-up prevention surface (101) allows the clip cylinder (A) to be attached.
Of the mounting guide (1-1) for preventing the mounting piece (b ₁ ) from rising when pressing against the clip (B).
There is an advantage that it can be guided by and is engaged with the inner surface of the peripheral wall (a ₁ ). The core metal (1) is used in both the first and second embodiments.
The guide surface (1-1) for mounting piece formed on the above guides the mounting piece (b ₁ ) in opposite directions, but the mounting piece (b ₁ ) is directed outward (in opposite directions). In the case of the clip fastening method that guides to (), the guide surface for the mounting piece (1-
It goes without saying that ₁ ) is formed in a shape that guides the mounting pieces (b ₁ ) in mutually opposite directions.

[0025]

As described above, according to the present invention, the guide surface for the clip mounting piece is formed on the peripheral surface of the core metal, and the clip mounting piece is arranged to face the guide surface for the mounting piece and the clip is attached to the core metal. The external cylinder is fitted and inserted, the peripheral wall of the clip cylinder is pierced by the mounting piece of the clip, and then the mounting piece piercing the clip cylinder is bent at the guide surface of the core metal,
Since it is adapted to be engaged with the inner surface of the peripheral wall of the clip cylinder, only the step of pressing the clip cylinder and the clip against each other does not require a separate clip mounting hole to be formed in the clip cylinder in advance. Clips can be attached in practice.

Therefore, not only the mounting process is simplified, but also the time required until the mounting is completed can be shortened, and it is possible to provide a mounting method for a small clip which excels in mass production and has a low manufacturing cost. Therefore, the intended purpose can be achieved.

[Brief description of drawings]

FIG. 1 is a front sectional view of a first embodiment of a mounting device of the present invention.

FIG. 2 is a sectional view taken along line (2)-(2) of FIG.

FIG. 3 is a sectional view taken along line (3)-(3) of FIG.

FIG. 4 is a sectional view taken along line (3)-(3) of FIG. 1, showing a state in which the clip cylinder is abutted against the clip.

5 is a sectional view taken along line (3)-(3) of FIG. 1, showing a state in which the mounting projection is bent and engaged with the inner surface of the clip cylinder.

FIG. 6 is a front sectional view of a second embodiment of the mounting device of the present invention.

7 is a sectional view taken along line (7)-(7) of FIG.

FIG. 8 is a sectional view taken along line (8)-(8) of FIG.

FIG. 9 is a sectional view taken along line (8)-(8) of FIG. 6, showing a state where the clip cylinder is abutted against the clip.

FIG. 10 is a sectional view taken along line (8)-(8) of FIG. 6, showing a state in which the mounting piece is bent and engaged with the inner surface of the clip cylinder.

[Explanation of symbols]

(1): Core bar (A): Clip cylinder (B): Clip (a ₁ ): Peripheral wall (b ₁ ): Mounting piece (1-1): Mounting guide surface

Claims (1)

[Scope of utility model registration request] 1. A mandrel (1) for externally fitting a clip cylinder (A) onto a movable upper die (100) which is movable up and down or a fixed lower die (200) which is arranged to face the movable upper die. A movable upper die (100) is provided so as to be able to move downward, and a concave guide surface (1-1) for the mounting piece of the clip (B) is provided at a portion of the core metal (1) corresponding to the clip portion of the clip cylinder (A). ) Are formed side by side in the circumferential direction, and a clip mounting surface (201) is formed at a portion of the fixed lower mold (200) facing the core metal (1), and the clip mounting surface is a guide surface for the mounting piece. A positioning recess (203) for the clip (B) is provided in a portion facing (1-1), and accommodation recesses (202) (202) are provided on both sides of the clip mounting surface (201).
And a guide block (302) (302) in each of the accommodation recesses.
And a clip cylinder (A) externally fitted and inserted into the core metal (1) by each of the guide blocks.
Is configured so that the mounting piece (b ₁ ) can be guided to the clip (B) arranged in the positioning recess (203) so as to face the mounting piece guide surface (1-1), and the guide blocks (302) ( 302) and the accommodation recesses (202) (202) facing each other with a compression spring (3
01) (301) intervening clip attachment device for small items.