JPH0143273Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application and overview of the invention) The invention relates to a binding tool, and includes a presser plate that is provided on the binding needle so as to be openable and closable, and a support plate that pivotally supports the presser plate. In a binding device which is combined with a stopper which is slidably provided and which locks the presser plate in the closed state, operability is improved by smoothing the movement of the stopper.

(Prior art and its problems) The above-mentioned type of binding tool has already been developed by Jikosho.
There is a method disclosed in Japanese Patent No. 57-34060, in which binding needles 11 and 11 are used as shown in FIGS. 6 and 7.
The binding needles 11, 11 of the substrate 1, which are erected in large numbers and attached to the cover, and the binding needles 11, 11 of the substrate
A support plate 10 provided parallel to the support plate 10, a presser plate 2 rotatably connected at the upper end of the support plate, and a presser plate 2 that engages with the engagement piece 21 of the presser plate and is movable up and down on the support plate 10. It consists of an attached plate-shaped stopper 3.

The cross section of the presser foot portion of the presser plate 2 is similar to that of the binding needle 1.
The engaging piece 21 is configured to have a shape that can cover the tips of the holding portions 1 and 11, and the engaging piece 21 protrudes from the fulcrum portion on the side opposite to the holding portion and is bent downward in an arc shape.

The presser plate 2 is biased by the first spring 20 in the direction in which the presser plate develops (away from the staples), and the stopper 3 is moved upwardly toward the engagement piece 21 by the second spring 30. is energized. Therefore, in the above-mentioned conventional device, when the paper sheets are stapled using the staples 11, 11 with the presser plate 2 open, and the presser plate 2 is tilted toward the staples,
The engagement piece 21 rotates while its outer circumferential surface contacts the upper end of the stopper 3, and when the presser plate 2 becomes horizontal and comes into contact with or approaches the tips of the binding staples 11, 11, the engagement piece 21 rotates. The tip comes off to the outside of the upper end of the stopper 3, the stopper 3 is lifted by the second spring 30, and the presser plate 2 is locked in this horizontal state.

When adding or removing paper sheets, use the tongue piece 3 of the stopper 3.
All you have to do is push down the engagement piece 21.
and the upper end of the stopper 3 are disengaged, and the presser plate 2
is opened by the biasing force of the first spring 20.

In this way, in the above-mentioned conventional device, when the presser plate 2 is tilted horizontally, the sheets can be locked in the bound state, and when the tongue piece 31 of the stopper 3 is pushed down, this lock is released and the sheets can be added or removed. can.

However, with this conventional model, the stopper 3
There are cases where the stopper 3 does not operate smoothly.The stopper 3 is held in a parallel pairwise manner by a pair of mutually parallel bent pieces 12, 12 provided on the support plate 10 and the surface of the support plate 10. This is because when the stopper 3 linearly slides, the operating posture of the stopper 3 between the bent pieces 12, 12 is not stable.

(Technical Problem) The present invention, as described above, rotatably pivots the presser plate 2 on the upper end of the support plate 10 that is erected in parallel with the plurality of binding staples 11, 11 that stand upright on the substrate 1. , an engagement piece 21 bent outward and downward is provided at the fulcrum of the holding plate 2, and a stopper 3 is provided below and opposite to the engagement piece 21, and the stopper 3 is disposed on the support plate 10 so as to be movable up and down. A biasing force in the opening direction is applied to the presser plate 2 by the first spring 20, and an upward biasing force is applied to the stopper 3 by the second spring 30, so that the presser plate 2 is brought down to a horizontal state. At this time, the upper end of the stopper 3 engages with the tip of the engagement piece 21, and at the same time, the presser plate 2
1, the stopper 3 rotates around the support plate 10 so as to be in a mating state so that the locking and unlocking operations of the presser plate 2 are smooth. The technical challenge is to do so.

(Means) The technical means of the present invention taken to solve the above technical problem is that the stopper 3 is composed of an upright tongue piece 32 and an extension piece 33 extending horizontally from the lower end of the stopper 3. The engagement piece 21 is pivoted by the support plate 10 at a position horizontally removed from below, and the upright tongue piece 32 is positioned below the engagement piece 21, and the support plate 10 and the bent piece 12 provided thereon are supported by the support plate 10.
The upright tongue piece 32 has a tongue piece 31 protruding from its lower end.

(Operation) The above technical means of the present invention operates as follows.

When the presser plate 2 is pushed down to make it horizontal, the tip of the engagement piece 21 comes off the upper end of the upright tongue piece 32, and this upright tongue piece 32 connects the support plate 10 and the engagement piece 2.
Intrude between 1 and 1.

At this time, the upright tongue piece 32 performs a swinging motion about the shaft support at the tip of the extension piece 33, and is energized by the biasing force of the second spring 30 interposed between the stopper 3 and the support plate 10. , the above-mentioned intrusion operation is performed, and the presser plate 2 is in a locked state.

Next, this lock can be released by pushing down the tongue piece 31 at the lower end of the upright tongue piece 32. By this operation, the stopper 3 swings around the tip of the extension piece 33 and engages with the upper end of the upright tongue piece 32. The coupling piece 21 will be disengaged.

As mentioned above, the operation of the stopper 3 for locking and unlocking the presser plate 2 is as follows.
This is a swinging motion using the tip of the extension piece 33 as a fulcrum.

(Effects) Since the present invention has the above configuration, it has the following unique effects.

The stopper 3 swings around the shaft support at the tip of the extension piece 33 as a fulcrum, thereby causing the engagement piece 2
Since the engagement and disengagement with 1 are performed, the operation is smoother and the operability is improved compared to the conventional type of forward-coupling operation.
No lock defects occur.

(Example) Hereinafter, an example of the present invention will be described based on the drawings shown in FIGS. 1 to 5.

The illustrated embodiment is an L-shaped lever consisting of an upright tongue piece 32 of a stopper 3 and an extension piece 33, and a through hole 34 is formed at the tip of the extension piece 33. It is attached so that a protrusion 13 provided near one end of the support plate 10 fits therein. Incidentally, this protrusion 13 is attached to the support plate 10 as shown in FIG.
It is formed by burring a part of the
Its height is made to approximately match the thickness of the stopper 3.

In the stopper 3 described above, the upright tongue piece 32
A tongue piece 31 that bends outward is provided at the lower end, and one side of this tongue piece 31 is formed to protrude further outward from the side edge of the extension piece 33, and the biasing force of the second spring 30 is The stopper 3 can be pushed down with a light force even if the amount is large.

Further, as shown in FIG. 2, the bending piece 12 is formed by cutting and pressing a part of the support plate 10, and the gap between the surface of the support plate 10 and the inner surface of the bending piece 12 is set as a stopper. It is set slightly larger than the plate thickness of No. 3. Therefore, when the upright tongue piece 32 of the stopper 3 is inserted between the bent piece 12 and the support plate 10 and the through hole 34 and the protrusion 13 are fitted, the stopper 3 is supported swingably. That will happen.

In this embodiment, the second spring 30 has a linear shape bent at both ends as shown in FIG.
A pair of locking pieces 14, 1 provided on the inner surface of the support plate 10
4 and the protruding piece 35 provided in the middle of the upright tongue piece 32, when the second spring 30 is installed between the stopper 3
An upward biasing force is applied to the

Next, the holding plate 2 is constructed in the same manner as the conventional example described above, but its shaft support structure is not provided with a special separate shaft, and as shown in FIG. 1
The upper side members of the square holes 15, 15 formed at the upper end of 0 are band-shaped, and a structure in which the band-shaped sides 16, 16 are wrapped around a part of the presser plate 2 realizes a pivoting structure for this part. Therefore, there is no need to separately prepare a shaft as in the conventional case, and manufacturing can be made at a correspondingly low cost.

In the above embodiment, a linear spring with a smooth central portion was used as the support plate 10.
If this is shaped as shown in FIG. 5 and a recess is formed in the center, and this is configured to be engaged with the protrusion 35, the second spring 30 can be mounted more stably.

Further, the tongue piece 31 provided on the stopper 3 may be provided near the upper end of the upright tongue piece 32. In this case, the operating position is located at the upper part, improving operability.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main parts of the embodiment of the present invention, Fig. 2 is a sectional view taken along the Figure 5 shows the second spring 3
0, FIG. 6, and FIG. 7 are explanatory diagrams of the conventional example. 21... Engaging piece, 3... Stopper, 31... Tongue piece, 32... Upright tongue piece, 33
...extension piece.

Claims (1)

[Scope of utility model registration request] A presser plate 2 is pivotally supported rotatably on the upper end of a support plate 10 that stands parallel to a plurality of binding needles 11, 11 standing upright on a substrate 1, and is bent outward and downward at the fulcrum of the presser plate 2. An engaging piece 21 is provided, and this engaging piece 2
A stopper 3 is provided below and facing the stopper 3, and this stopper 3 is disposed on a support plate 10 so as to be able to rise and fall freely, and a biasing force in the opening direction is applied to the holding plate 2 by a first spring 20, 3 is given upward biasing force by the second spring 30, and when the presser plate 2 is brought down to a horizontal position, the upper end of the stopper 3 engages with the tip of the engagement piece 21, and at the same time, the presser plate 2 11, 11, the stopper 3 is made up of an upright tongue piece 32 and an extension piece 3 extending horizontally from its lower end.
3, this extension piece 33 is pivotally supported by the support plate 10 at a position horizontally removed from below the engagement piece 21, the upright tongue piece 32 is positioned below the engagement piece 21, and the support plate 10 and a bent piece 12 provided thereon, the binding tool has a tongue piece 31 protruding from the lower end of an upright tongue piece 32.