JP3149465U - Metal clip - Google Patents

Abstract

To provide a metal clip capable of avoiding breakage even when an excessive force is applied to the clip. A metal clip attached to a cylindrical body such as a shaft cylinder or a cap of a writing instrument by sandwiching an annular fixing portion includes a plate-like portion, the plate-like portion, and the fixing portion. In addition, the clip has a protruding body that is embedded in the cylindrical body, and the protruding body is in contact with the inner surface of the cylindrical body. A metal clip that restricts an opening operation of the clip. [Selection] Figure 1

Description

  The present invention relates to a metal clip provided on a writing instrument or the like. Specifically, the present invention relates to a structure of a metal clip that regulates the opening operation of the clip.

  Conventionally, a metal clip attached to a cylindrical body such as a shaft cylinder or a cap of a writing instrument has been proposed in which an annular fixing portion is sandwiched between the cylindrical bodies (Patent Documents 1 and 2). . In such a type of clip, if an excessive force is applied in the direction in which the clip is opened, the restriction is not applied, and the plastic deformation region is opened, resulting in breakage. In the clip of the type proposed in Patent Document 1, the clip body of the plate-like portion is bent by the opening operation of the clip, and the bent portion connected between the plate-like portion and the fixing portion is also elastically deformed. When the clip is forcibly opened in the opening direction, both the plate-like portion and the bent portion are plastically deformed beyond the elastic deformation range.

  Moreover, in the case of a metal clip in which an operation part having a ball part serving as a clip body, as proposed in Patent Document 2, is fixed to a plate-like elastic part by caulking, the clip is opened. In this case, the plate-like attachment piece is hardly deformed, and the amount of elastic deformation at the portion extending from the support piece to the bent portion increases. In other words, during the clip opening operation, the burden on the portion extending from the support piece portion to the bent portion increases. When the clip is forcibly opened in the opening direction, it is plastically deformed beyond the elastic deformation region from the support piece portion to the bent portion.

Shokai 60-137585 Japanese Patent No. 3842777

  In the conventional metal clip, when an excessive force is applied in the opening direction, the clip is plastically deformed and broken. In particular, in a metal clip in which a member such as an operation unit is fixed to the plate-like portion, the plate-like portion is hardly deformed, so that a load is applied to the bent portion and is easily damaged.

  The present invention relates to a metal clip that is attached to a cylindrical body such as a shaft cylinder or a cap of a writing instrument by sandwiching an annular fixing portion. The metal clip includes a plate-like portion and the plate. A bent portion is provided between the fixed portion and the fixed portion, and the metal clip further includes a protruding body included in the cylindrical body, and the protruding body is The metal clip is characterized by restricting an opening operation of the metal clip by contacting the inner surface of the cylindrical body.

  According to the present invention, the protruding body provided on the metal clip is configured to abut against the inner surface of the cylindrical body when the clip is opened by a predetermined amount or more. Therefore, the opening operation of the clip is restricted. Therefore, even if an excessive force is applied to the clip, the clip cannot be opened any further, so that the deformed portion of the clip stays in the elastic deformation region and can be prevented from being damaged.

It is a longitudinal cross-sectional view which shows the whole writing instrument in a present Example. It is an expanded vertical sectional view which shows the principal part of this invention. It is III-III sectional drawing of FIG. FIG. 4 is a view as seen from IV in FIG. It is component drawing of a clip, (a) The front view of the metal clip of this invention, (b) The figure seen from the back of the metal clip of this invention. It is an operation state diagram of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the forward direction refers to the direction of the pen tip side.

  In FIG. 1, a writing instrument 1 is a so-called rotary composite writing instrument. Since the appearance mechanism and the like of the writing instrument 1 are conventional techniques, the configuration and operation of the writing instrument 1 will be schematically described below. The upper shaft 2 is formed in a cylindrical shape from a metal material. At the rear end of the upper shaft 2, a flange 21 is formed in a substantially annular shape with a clip attachment portion cut out. On the other hand, the slide pieces 31 and 32 to which the refills (111 and 112) of the ballpoint pen and the mechanical pen are connected are guided by the guide member 4 and are repelled rearward by the coil springs 51 and 52. And the front-end | tip latching | locking part 61 of the cam member 6 is formed so that the slide pieces 31 and 32 can be latched.

  Further, the cam member 6 is provided with a cam surface 62. The slide pieces 31, 32 move back and forth in the axial direction in the axial direction of the guide member 4 along the cam surface 62 in combination with the elastic force of the coil springs 51, 52.

  The rear end of the cam member 6 is screwed with the tail plug 7. Further, the rear end of the cam member 6 and the tail plug 7 sandwich the flange portion 21 of the upper shaft 2 and the fixing portion 81 of the clip 8. Therefore, the clip 8, the cam member 6, and the upper shaft 2 are fixed integrally. And the protrusion part 22 provided in the back of the upper axis | shaft 2 fits with the groove part 63 provided in the cam member 6, and has strengthened the mutual fixed relationship.

  On the other hand, the guide member 4 is fixed to the lower shaft 9 via the intermediate member 10 or the like. Therefore, the cam member 6 is also rotated at the same time by the rotation operation around the axis of the upper shaft 2, so that the slide pieces 31 and 32 are moved back and forth in the guide member 4. Then, the refills 111 and 112 are drawn from the tip of the writing instrument 1.

  2 to 5 show the periphery of the clip 8 of the writing instrument 1 which is the gist of the present invention. As described above, the tail plug 7 is screwed from the rear end of the cam member 6 provided in the upper shaft 2. And the collar part 21 and the fixing | fixed part 81 are pinched between the rear end surface of the cam member 6, and the tail plug 7, and are fixed. Here, although the fixing portion 81 is formed in an annular shape (see FIG. 5B), it may be substantially annular with a notch or the like.

  A component diagram of the clip 8 is shown in FIG. The clip 8 is made of metal and has a long plate-like plate-like portion 82 and a bent portion 83 that is connected to the plate-like portion 82 and is bent at approximately 90 °. The above-described fixing portion 81 is connected to the bent portion 83. In other words, the bent portion 83 is connected between the plate-like portion 82 and the fixed portion 81. And the clip main-body part 84 which exhibits the box-shaped shape which makes a cross-sectional top part site | part semicircle (refer FIG. 3, FIG.5 (b)) is being fixed to the plate-shaped part 82. FIG. The fixing method is a method in which a protrusion for caulking joining is provided on the side surface 84a of the clip body 84, and caulking joining is performed from the side surface to the lower surface of the plate-like portion 82 (for example, fixing disclosed in Japanese Patent No. 3842777). Method). Here, on the lower surface of the front end of the clip main body portion 84, a pinching ball portion 84b is provided so that paper or the like can be pinched.

  Further, a protruding body 84a1 bulges from the side surface 84a so as to be inherent in the upper shaft 2 on the rear end side of the clip main body 84. This projecting body 84a1 is formed in an arc shape by matching its cross-sectional shape to the inner peripheral surface of the upper shaft 2 (see FIG. 3). Further, a notch 64 is formed in the rear portion of the cam member 6 corresponding to the projecting body 84a1 so that the projecting body 84a1 is accommodated.

The effect | action of the metal clip of a present Example formed in this way is demonstrated.
As shown in FIG. 6, when the clip 8 (clip body 84) is lifted with a finger in the opening direction, the bent portion 83 is elastically deformed. When a certain amount of the clip is opened, the upper surface of the protruding body 84a1 comes into contact with the corresponding inner surface of the upper shaft 2. Therefore, the further opening operation of the clip 8 is restricted. Here, if the contact between the protruding body 84a1 and the inner surface of the upper shaft 2 is set within the elastic deformation region of the bent portion 83, the clip 8 (bent portion 83) is plastically deformed and broken. There is no fear.

  In addition to the present embodiment, the protruding body 84a1 can be provided in the same manner in a clip of a type that does not have the clip main body 84 (see Japanese Utility Model Laid-Open No. 60-137585). However, in the clip in which the plate-like portion 82 is not elastically deformed as in the present embodiment, since the deformation load of the bent portion is large, the present invention is more effective.

  Furthermore, in the present embodiment, since the upper shaft 2 is made of metal, the clip opening operation can be more reliably regulated.

  In the present embodiment, the clip 8 is provided at the rear end of the shaft cylinder of the writing instrument 1, but it can be similarly provided in other cylindrical bodies, for example, the cap of the writing instrument. Furthermore, the cylindrical shape of the upper shaft 2 that is a cylindrical body is not limited to the present embodiment, and may be, for example, one provided with variously shaped ribs or the like, or a rectangular cylindrical shape.

DESCRIPTION OF SYMBOLS 1 Writing instrument 2 Shaft cylinder 8 Clip 81 Fixing part 82 Plate-like part 83 Bending part 84 Side surface 84a1 Projection part 84b Nipping ball part

Claims (2)

In a metal clip that is attached to a cylindrical body such as a shaft cylinder or a cap of a writing instrument by sandwiching an annular fixing portion,
The metal clip is a plate-like portion, and a bent portion is continuously provided between the plate-like portion and the fixing portion,
Further, the metal clip has a protruding body that resides in the cylindrical body, and the protruding body abuts against the inner surface of the cylindrical body, thereby restricting the opening operation of the metallic clip. A metal clip characterized by that. The metal clip according to claim 1, wherein the metal clip is fixed to the plate-like portion and has a clip main body portion having a holding ball portion.

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