JPH0545517Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a so-called cursive writing method in which a writing body housed in a barrel is moved in the axial direction via an elastic member.
This invention relates to improvement of a notch type cursive writing device.

"Prior Art and Problems to be Solved by the Present Proposal" There have been various so-called knock-type writing body ejection devices for making a writing body housed in a cylinder appear and disappear through an elastic member, but these Most of the problems are due to the pressing action of the pushing member protruding from the rear end opening of the cylinder, and due to the relationship with the mechanism for engaging and disengaging the writing body within the cylinder, it is inevitable that the ejection device itself becomes complicated. It was hot.

In addition, the writing in this kind of retractable device does not depend on the operation of the pushing member, but is linked to the action, so when the writing state is released, that is, when the writing is retracted into the cylinder, the elastic force of the elastic member is applied. The unilateral impact force that the cursive body receives in the axial direction often causes a situation in which the performance of the cursive body itself is impaired.

"Means for Solving the Problem" The present invention is intended to eliminate these drawbacks seen in the prior art, and the writing body is movably engaged with the outer cylinder, and the inner cylinder holds the writing body. At the same time, the locking protrusion provided on the outer surface of the writing body is positioned in the long groove bored in the outer cylinder, and the writing body is always biased toward the end of the writing body and accommodated in the outer cylinder, and A means to solve this problem is to attach to the cylinder a swingable clip member provided with an engaging portion that engages with a locking protrusion on the inner cylinder.

"Function" According to the present proposal, the inner cylinder that covers the cursive body accommodates the brush end of the cursive body within the inner cylinder, and is normally accommodated in the outer cylinder while being biased toward the brush end. Therefore, in order to obtain the writing state, it is sufficient to press the outer cylinder toward the front end opening of the inner cylinder until the engaging portion of the clip member engages with the locking protrusion of the inner cylinder.Also, the writing state can be released. To do this, it is sufficient to release the engagement between the engaging portion of the clip member and the locking protrusion on the inner cylinder. At this time, if the cursor is used under normal conditions, there is almost no possibility that the outer cylinder will move, and the inner cylinder, which is biased toward the end of the writing brush, will return to its original state. In other words, the inner cylinder is moved toward the brush end by the biasing force until the brush end returns to the retracted state.

"Example" Hereinafter, an example of the present invention will be described based on the drawings.

The outer cylinder 1 has a front end formed into an opening 1a, and a rear end formed into a somewhat thick part 1b.

The writing body 9 has its rear end 9b removably attached to a hole 1b' formed in the thick part 1b, and the outer cylinder 1
Linked with.

By employing a structure that fits into the hole 1b', the interlocking relationship between the writing body 9 and the outer cylinder 1 becomes more reliable. Note that the writing body 9 is of course not limited to the ballpoint pen body mentioned here, but may also be a fountain pen, a felt pen, or even a sharp pencil body if some structure is added. Furthermore, as long as the writing body 9 can be interlocked with the outer cylinder 1, it does not necessarily have to be fitted into the hole 1b' of the outer cylinder thick part 1b. The mounting position of the biasing means will be specified.

A groove 2 of a predetermined length is bored near the front end opening 1a of the outer cylinder, and a locking protrusion 4 of the inner cylinder 3 is located within this groove 2.

The inner cylinder 3 covers the writing body 9, is biased toward the brush end 9a of the writing body 9, and is accommodated in the outer cylinder 1. The biasing means may be determined as appropriate, and here, the elastic force of a coil spring S installed between the front end step 9c of the writing body 9 attached to the outer cylinder 1 and the front end step 3b of the inner cylinder is used. However, its mounting position is between the rear end surface 3c of the inner cylinder 3 and the end surface 5 of the outer cylinder thick part 1b.
It may be between.

In addition, as mentioned above, the cursive 9 is located on the outer cylinder thick part 1.
If the writing body 9 is not fitted into the hole 1b' of the hole 1b', for example, if the writing body 9 has a structure in which the rear end 9b is only in contact with the thick end surface 5 of the outer cylinder 1, this biasing means may be used. The coil spring S must be installed between the inner cylinder front end 3b and the writing body front end 9c.

This configuration has the advantage that the interlocking structure of the outer cylinder 1 and the writing body 9 can be obtained very simply, and in addition, the work of replacing the writing body 9 can be performed more easily.

Reference numeral 2a denotes an end face of a groove 2 formed in the outer cylinder 1, with which a locking protrusion 4 provided on the outer surface of the inner cylinder 3 comes into contact, and the inner cylinder 3 is moved by the elastic force of the coil spring S. This prevents it from coming off from the outer cylinder 1.

Various other prevention structures can be considered for this withdrawal prevention measure, but in addition to the examples listed here,
On the inner surface of the outer cylinder 1 and the outer surface of the inner cylinder 3,
One solution is to add auxiliary means such as a locking protrusion (not shown).

Further, in the figure, reference numeral 6 denotes a clip member having an engaging portion 7 that engages with the locking protrusion 4 of the inner cylinder 3, which is attached to the outer cylinder 1 so as to be swingable in a direction perpendicular to its axial direction. .

This rocking motion may be realized by an appropriate structure, but here, a leg portion 6a is formed at the rear end of the clip member 6, and this leg portion 6a is attached to the thick wall portion of the outer cylinder 1.
It is installed in the vertical hole 8 provided in the vertical hole 8 so as not to separate from the outer cylinder 1, and has a structure in which a coil spring S' is interposed between the leg part 6a and the vertical hole bottom part 8a.

As described above, the writing state is achieved by pressing the outer cylinder 1 toward the front end opening 3a of the inner cylinder until the engaging portion 7 of the clip member 6 engages with the locking protrusion 4 of the inner cylinder 3. Furthermore, the writing state can be easily released by disengaging the engaging portion 7 of the clip member 6 from the locking protrusion 4 of the inner cylinder 3.

When the writing state is released, that is, when the brush end 9a of the writing body 9 sinks into the front end opening 3a of the inner cylinder, it is possible to use it in an extremely unnatural usage state, for example, by grasping only the inner cylinder 3 as described above. Unless an operation is performed to release the engagement between the engagement portion 7 and the locking protrusion 4, the possibility that the outer cylinder 1 will actively move in such a way as to receive a large impact force is extremely small.

In this way, when the writing body 9 is immersed, the writing body 9 rarely or never moves in such a way that it receives a large impact force. This means that problems such as the unevenness of the batting inside the ink storage body can be definitely avoided. 3d is the front end cap part of the inner cylinder 3, and in consideration of replacing the writing 9, etc., the inner cylinder main body 3'
It is made removable.

``Effects'' Since the present invention has the above-mentioned configuration, it is possible to obtain a retrieval device with a simple structure with a small number of parts, and it also eliminates various adverse effects caused by the impact force on the cursive body that occurs when canceling the writing state. becomes possible to eliminate. For example, it is possible to prevent the phenomenon of unevenness of the filling in a ballpoint pen body with a built-in ink absorber, and also to prevent the phenomenon of ink falling from the end of the writing pen or ink leaking from the rear end of the storage cylinder. The problem will be resolved.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view illustrating the entire writing implement according to the present invention, Figure 2 is a vertical cross-sectional view illustrating the writing state in which the writing instrument is exposed from the inner cylinder in Figure 1, and Figure 3 is the back of the writing instrument. FIG. 3 is a longitudinal cross-sectional view illustrating the relationship between the end portion and the thick wall portion of the outer cylinder. 1... Outer cylinder, 1b... Thick part, 1b'... Hole, 2
... Groove, 2a ... End surface, 3 ... Inner cylinder, 3a ... Inner cylinder front end opening, 3b ... Inner cylinder front end step, 4 ... Locking protrusion, 5 ... End surface, 6 ... Clip Part, 6
a... Leg part, 7... Engaging part, 9... Cursive, 9a
... Brush end, 9b... Rear end, 9c... Cursive front end step, S, S'... Coil spring.

Claims (1)

[Claims for Utility Model Registration] (1) An outer cylinder 1 having a groove 2 of a predetermined length and in which a writing body 9 is removably attached is always biased toward the brush end 9a of the writing body 9. The inner tube 3 is housed so that the writing body 9 is covered and the locking protrusion 4 provided on the outer surface of the inner tube 3 is located in the groove 2, and the inner tube is placed on the outer surface of the outer tube 1. A clip member 6 having an engaging portion 7 that engages with a locking protrusion 4 on the outer surface of the cylinder is attached so as to be swingable in a direction perpendicular to the axial direction of the outer cylinder 1, and the outer cylinder 1 is attached to the front end opening 3a of the inner cylinder. While pressing in the direction, the engaging portion 7 of the clip member 6 was engaged with the locking protrusion 4 of the inner cylinder 3, so that the brush end 9a of the writing body 9 was exposed from the front end opening 3a of the inner cylinder. A cursive writing device characterized by: (2) A coil spring S as a biasing means is installed between the inner cylinder front end step 3b and the writing body front end step 9c, and the writing body 9 rear end 9b is attached to the end surface 5 of the outer cylinder thick part 1b. The cursive writing device according to claim 1, characterized in that the cursive writing device is brought into contact with the utility model registered claim 1.