This invention relates to an office clip for pinching and binding one or more memo pads and the like.
Conventionally, office clips have been widely used to improve the efficiency of office work such as collecting and classifying documents. Although various types of clips for office use have been provided, the actual situation is that they are not so high in terms of designability. Therefore, a clip decorative seal that can be attached to an existing gem clip is known (refer to Patent literature 1). This is because the seal base material is folded in two along the center line and attached, and has the advantage that it does not fall off accidentally.
However, the clip decorative seal disclosed in the above-mentioned Patent Document 1 is not a type of clip decorative seal that gives designability by devising the shape of the clip itself.
A ring-shaped clip in which the clip is ring-shaped is known as a device in which the shape of the clip itself is devised (refer to Patent literature 2). Generally, most of the ring-shaped clips do not have sufficient gripping force between the wire rods, and conversely, if the wire rods are brought into close contact with each other so as to increase the gripping force, there is a problem that it becomes difficult to pinch a document or the like. The ring-shaped clip disclosed in the above-mentioned Patent Document 2 is to insert an insert piece formed so that the end portion is opened in the gap of the ring of the coil-shaped ring, and according to this, a document or the like can be easily sandwiched.
However, although the ring-shaped clip disclosed in Patent Document 2 is highly convenient, it is hard to say that the designability is high.
In view of such a circumstance, the present invention aims to provide an office clip having a high designability while having a sufficient gripping force.
In the aim to solve the above mentioned problems, an office clip of the present invention is an office clip for pinching and binding paper, wherein a ring portion includes elastic wire spirally wound closely or at a predetermined pitch, with at least one end wire of the ring portion being extended inwardly with respect to a center of a spiral, and an end wire bent toward the direction of the other end of the ring portion, thereby heightening the clamping force and enhancing the designability by one motif created by the end wire.
In this way, the end wire is not only extended inward, but is also bent in two steps, such as being bent in a spiral axial direction and in the direction of the other end of the ring part. As a result, a sufficient clamping force can be obtained.
When the elastic wire is wound closely in a spiral shape, there is an advantage that a sufficient holding force can be obtained even when a thin memo paper or the like is held due to the initial tension of the contact winding spring. Here, the initial tension of the closely-wound spring refers to a force that works to bond the wires to each other in the coil portion of the spring, wherein the coil is wound in close contact, even in the unloaded state. As used here two sections of wire are in “close contact” when they have surfaces which are within one wire diameter of each other, for whichever wire section diameter is larger.
Further, the ring portion may have a structure in which an elastic wire is spirally wound at a predetermined pitch. For example, in the case of having a purpose of sandwiching thick paper or the like, it is possible to sandwich the paper even if the pitch is provided, and by providing the pitch, there is an advantage that the paper can be easily inserted.
The elastic wire is preferably made of metal such as iron or steel from the viewpoint of strength, but may be made of resin depending on the cost and use. Further, the ring portion is not limited to a circular shape in planar view, and may be an elliptical shape, a rectangular shape, or other polygonal shapes.
In the present invention, the motif to be produced may be produced only by the end wire or may be produced as one motif by combining the end wire and the ring part.
The office clip of the present invention may be one in which both end wire members are united to create one motif. By combining both end wire rods to create a single motif, it is possible to create a design with higher designability.
In an office clip of the present invention, it is preferable that the motif produced by the end wire is at least one of letters, numbers, or figures.
Here, the characters widely include symbols for transmitting words, and examples thereof include hiragana, katakana, kanji, or Latin characters, but are not limited to these, for example, and Arabic characters, Cyrillic characters, or even an emoji or emoticon may be included.
Also, the number includes a wide range of symbols for expressing numbers, and examples thereof include Arabic numbers and Roman numbers, but the number is not limited to these and Indian numbers or Greek numbers, for example may be included.
The figure includes a wide range of representations of various shapes, and is not limited to a geometrical shape using a circle, a polygon, or the like, and includes, for example, a logo mark indicating a company or an organization.
Also, the shape may be a combination of any of letters, numbers, or figures, such as a combination of characters and letters, letters and numbers, or numbers and figures.
In an office clip of the present invention, a circumferential length of the spiral ring portion is preferably 1.67 or more turns of the spiral. When the circumferential length of the spiral ring portion is less than 1.67 turns of the spiral, the holding portion of the ring portion, that is to say, the portion for holding the memo paper or the like becomes less than 0.67 turns of the spiral, and a sufficient holding force would not be obtained. Therefore, by setting the circumferential length of the spiral ring part to 1.67 or more turns of the spiral, the holding part can be set to 0.67 turns or more of the spiral, and sufficient holding force can accordingly be obtained even when holding a memo paper or the like.
According to an office clip of the present invention, there is an effect that the office clip here can be used as a highly designed clip while having a sufficient gripping force.
Embodiments of the present invention will be described in detail below with reference to the drawings. The present invention is not limited to the following embodiments and examples shown in the figures, and the present invention can be variously changed in design.
Specifically, as shown in
As shown in
As shown in
Further, as shown in
A mechanism for improving the clamping force as mentioned above will be described with reference to
As shown in
Here, after opening the clip in the direction shown by the arrows (9a, 9b) in
However, unlike Embodiment 1, the ring portion 21 of the office clip 11 has an elliptical shape, and the end wire rod 5 and the end wire rod 6 cross each other, which creates one motif by unification of end wire rods 5 and 6, resulting in a shape of high designability.
Thus, even when the end wire rods intersect with each other, the end wire rod 6 is not provided by bending the entire end wire rod 6 in the spiral axial direction and toward the other end of the ring portion, but by bending only a tip portion 6a of the wire 6 as shown in
In a similar manner to Embodiment 1, the design is such that the original design is expressed when the office clip 11 is removed from the memo paper 8, namely, when the office clip 11 is not in use.
As shown in
The spirally wound length is about one round and two-thirds of the spiral, as in Embodiment 1, and therefore, the sandwiching portion 21a occupies about two-thirds of the ring portion 21. In addition, since the end wire 7 is provided by bending in the spiral axial direction and in the direction of the other end of the ring part, a sufficient gripping force can be obtained, and thus it becomes possible to create a design by processing only one end of the ring portion.
Unlike Embodiments 1 to 3, the ring portion may be configured in such a way that the front side wire and the back side wire in the sandwiching part do not come into close contact with each other and are wound at a predetermined pitch.
The present invention is useful as an office clip.