JPH0625690Y2 - Stop - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a stopper, and more particularly to a stopper used to hold staple legs of staples that have been punched out by a staple driving machine such as a stapler and have penetrated a stapled member. Regarding the ingredients.

[Prior Art] In a staple driving machine such as a stapler for office work,
In order to prevent the staple legs of the staple that stick out on one surface of the stapled member such as a document to be invisible from the outside, there is a fastener that holds the staple legs in a covered state. This eliminates the rough feeling that accompanies the protrusion of the needle tip, especially if various shapes are given to the stopper,
It is also possible to add fashionability to it.

As this type of stopper, a recess formed with a predetermined guide surface and a holding wall provided in the recess and having a predetermined wall thickness are integrally molded, and staple staples of a staple penetrating the stapled member are formed. Recently, there has been devised a device in which a member is bent along a guide surface and then penetrates through a holding wall in a perforated state so that the member to be stitched is locked while being supported by the opening end surface of the recess and the holding wall. ing.

[Problems to be Solved by the Invention] In the above-mentioned conventional stopper, the wall thickness of the holding wall must be thin so that it can be easily penetrated when the staple leg of the staple is penetrated, On the other hand, after the penetration, when locking the needle tip, it must be thick so as to have a sufficient strength for surely supporting the member to be bound. That is, it is necessary to satisfy the contradictory conditions. For this reason, you have to sacrifice one or the other, for example,
Considering that the strength is secured and that the wall thickness must be a certain value or more when molding the retaining wall, the wall thickness of the retaining wall is such that it is not easy for the staple leg to penetrate. I could not help it. Thus, the penetration resistance when the staple needle tip penetrates the holding wall into the perforated state is large, thus increasing the binding load, which makes it difficult for women and children, especially for binding operation, and reduces the load of the booster mechanism etc. There are various problems such as the necessity of taking measures, the structure becomes complicated, and the staples buckle due to an excessive binding load, resulting in insufficient binding.

The present invention has been made in view of such problems,
The purpose is that even if the holding wall is formed so that sufficient strength necessary to support the member to be bound is obtained, the penetration resistance of the staple with respect to the holding wall is small, so the binding load is reduced, and the binding is performed. To provide a stopper that can be operated easily and does not need to adopt load reducing means such as a booster mechanism, and also prevents buckling of staples due to a reduction in binding load, and that can reliably perform binding. is there.

[Means for Solving the Problems] In order to solve the above problems, in the present invention, there is provided a stopper used with a staple driving machine for binding a member to be stapled by staples, the stopper penetrating the member to be bound. The stapled member is provided with a recess formed with a guide surface for guiding the staple legs of the staple, and a holding wall provided in the recess and through which the folded staple leg is penetrated. Wherein staple legs of the staple are locked to the holding wall in a state of being supported by the holding wall and a holding wall, a guide hole or a fragile portion is formed at the staple penetrating portion of the holding wall. It proposes a stopper to do.

[Operation] In the stopper of the present invention having the above-described structure, since the guide hole or the fragile portion is formed in the staple penetration portion of the holding wall, the holding wall as a whole is sufficient to support the member to be bound. In addition to being formed to have strength, the staple leg can easily penetrate the guide hole or the weakened portion, and the resistance to penetration of the staple with respect to the holding wall is small, thus reducing the binding load and binding. It is not necessary to use a load reducing mechanism such as a boosting mechanism because the operation becomes easy, and buckling of staples due to a reduction in binding load is prevented, so that binding is performed reliably.

[Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings.

First, a stopper according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, reference numeral 1 is a stopper body formed of a synthetic resin such as hard plastic, for example, a polyacetal resin (registered trademark: Duracon, Tenac, Delrin). The material is not limited to synthetic resin, and may be metal such as aluminum. The stopper main body 1 is installed in a stopper holding portion 2 provided at a position corresponding to a clincher portion of an ordinary staple driving machine, and is ejected by a driver 3 from a staple ejection port (not shown) to form a member to be bound. The staple legs 6, 6 of the staple 5 penetrating the document 4 are held.

A recess 9 is provided on the upper surface of the stopper body 1. Guide portions 7, 7 are formed on the left and right sides of the concave portion 9 so as to be inclined in the bending direction and guide the bending at the portions where the staple legs 6 of the staple 5 abut. A pair of thin plate-shaped holding walls 8 having a wall thickness of, for example, about 0.2 mm are integrally formed in a protruding state at the lowermost position of each guiding surface 7 along the vertical direction. Here, the upper surface of each of the holding wall 8 and the recess 9 supports the lower surface of the document 4, that is, the document 4 is sandwiched between the crown portion 12 of the staple 5 and the upper surface of the holding wall 8 and the stopper body 1. In this state, the staple tip 6 of the staple 5 is held by the retaining wall 8
It is designed to be held at.

As shown in an enlarged view in FIG. 3, guide holes 10 and 10 are formed at the lower end of each holding wall 8 at the penetrating portion of the staple tip 6 of the staple 5. The needle tip 6 penetrates along the guide hole 10 and is directed toward the center of the recess 9 by an arrow A.
It is designed to be inserted and locked as shown by.
The guide hole 10 is formed on the guide surface 7 as shown in FIG.
Are formed with the same width as. Further, it is preferable that the guide hole 10 has such a size that the guide hole 10 can be reliably locked with respect to the outer diameter of the needle tip 6 of the staple 5 after the needle tip 6 penetrates.

According to the first embodiment described above, the guide hole 10 is formed in the staple penetrating portion of the holding wall 8, so that the holding wall as a whole has sufficient strength for supporting the document 4. In addition to being formed, the staple leg can easily pass through the guide hole 10, and the penetration resistance of the staple 5 to the holding wall 8 can be small, thus reducing the binding load and facilitating the binding operation. It is not necessary to use a load reducing means such as a booster mechanism, and buckling of the staple 5 due to the reduction of the binding load is prevented, so that the binding can be reliably performed.

Next, a stopper according to a second embodiment of the present invention will be described with reference to FIG.

In this embodiment, instead of the guide hole 10, the fragile portion 11
Is provided.

Specifically, the wall thickness of the holding wall 8 is made thinner at the staple penetrating portion than at other portions to form the fragile portion 11, so that the staple 5 is locked in the punched state. There is. If the wall thickness of the holding wall 8 is stepped on the side of the staple 5 through which the needle tip 6 penetrates, when the needle tip 6 tries to penetrate the fragile portion 11, the fragile portion 11 It can be a guide.

The rest of the configuration and effects are similar to those of the first embodiment.

The present invention has been described above with reference to the respective embodiments, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention.

For example, in the above embodiment, the staple legs 6 of the staple 5 are
Although the structure is such that the bending direction of (1) is inward, the staple leg 6 may of course be structured to be bent outward.

[Advantage of the Invention] As described above, according to the stopper according to the present invention, since the guide hole or the fragile portion is formed in the staple penetrating portion of the holding wall, the holding wall as a whole supports the member to be bound. Can be formed to have sufficient strength required for the staples, and the staple legs can easily penetrate through the guide hole or the weak portion, and the resistance of the staple to penetrate through the retaining wall is small, so that the binding is performed. The load is reduced, the binding operation is facilitated, there is no need to adopt load reducing means such as a booster mechanism, and the buckling of staples due to the reduction of the binding load is prevented, and the binding is performed reliably. It has various effects such as

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a use state of a stopper according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is a retaining wall in FIG. FIG. 4 is a partially enlarged view showing the staple penetrating portion of FIG. 4, and FIG. 4 is a partial enlarged view showing the staple penetrating portion of the holding wall in the stopper according to the second embodiment. 4 ... Documents, 5 ... Staples 6 ... Staple legs, 7 ... Guide surface 8 ... Retaining wall, 9 ... Recessed portion 10 ... Guide hole, 11 ... Fragile portion

Claims (1)

[Scope of utility model registration request] 1. A stopper for use with a staple driving machine that binds a stapled member with staples, the recess having a guide surface that guides the staple leg of the staple penetrating the stapled member by bending. A holding wall provided in the recess and through which the bent staple leg penetrates; and the staple leg of the staple is in a state in which the stapled member is supported by the opening end surface of the recess and the retaining wall. A stopper which is engaged with a holding wall, wherein a guide hole or a fragile portion is formed at the staple penetrating portion of the holding wall.