JPS6228478Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a case for sharpening pencil refills.

The case for sharp pencil refills is required to have a simple structure, to allow the refill refill hole to be opened and closed easily and reliably, and to prevent the refill from falling out due to the refill hole opening unexpectedly. It is also desirable to be able to open and close the device with one touch in the palm of one's hand.

Therefore, the purpose of the present invention is to provide a case for sharpening pencil refills that satisfies these requirements. The hole cover is connected by an elastic connecting piece, and the lower end is folded back into a groove shape to form an elastic rod that moves up and down within the case body, and a spring body that biases the knob upward. When the knob is pressed down with the tip of a finger and lowered, the elastic connecting piece is deformed and the refill is opened in the lid so that the refill can be taken out.
The protrusion formed on the side wall of the elastic rod locks in a semi-stable state with the locking part of the case body, which has a semicircular cross section, and when the pressure from the fingertip is released, the spring body locks in the semi-stable state due to the biasing force of the spring body. is released and Notsukuko rises,
This is achieved by a sharp pencil refill case characterized in that the lid closes the ejection hole.

The present invention will be specifically described below based on embodiments shown in the drawings.

The case body 1 is a flat box, and the inside thereof is partitioned by a partition wall 11 to form a refill storage chamber 12. A take-out hole 13 is bored at the end of the upper surface, and the refill inside the storage chamber 12 can be taken out from the take-out hole 13. At a predetermined position below this extraction hole 13, a guide wall 14 is installed within both wall surfaces. A portion on the opposite side of the storage chamber 12 and partitioned by the partition wall 11 is a space in which the locking element 2 moves up and down. The lower end of this knob 2 is folded back into a groove shape to form an elastic rod 6, the free end of which is elastically deformed in the direction of the knob 2. The side wall of the elastic rod 6 is provided with a protrusion 61 whose cross-sectional shape is an arc at the top and straight at the bottom. On the other hand, side wall 1
1 is formed with a locking part 15 having a semicircular cross-section, and when the knob 2 descends, the protrusion 61 engages with the locking part 15.
When it overcomes , both are locked in a quasi-stable state. Above the knob 2 is a lid 3 that opens and closes the extraction hole 13.
are integrally connected by an elastic connecting piece 4.
The base end of the elastic connecting piece 4 closer to the knob 2 is curved into an arc shape, and a straight line extending from the base end in an inclined manner contacts the guide wall 14. A spring body 5 is provided between the bottom of the case body 1 and the bottom of the knob 2.
is interposed to urge the knob 2 upward, but as shown in FIG. 1, when the knob 2 is in the upper position, the lid 3 closes the extraction hole 13.

In order to take out the refill stored in the storage chamber 12, the top surface of the locking element 2 can be pressed with the tip of the finger against the biasing force of the spring body 5, as shown in FIG. As the knob 2 descends, the projection 61 overcomes the locking portion 15 due to the deformation of the elastic rod 6 and is locked in a quasi-stable state. Here, the semi-stable state means that the user is sensually informed that the lock has been made, and the locked state can be maintained with a slight pressing force, but when the pressing force is released, the user is overcome by the urging force of the spring body 5. Refers to the state in which the lock is released. As the locking element 2 descends, the elastic connecting piece 4 also descends, but since the inclined straight portion is in contact with the guide wall 14, the curvature of the arc-shaped portion decreases as it descends.
The lid 3 recedes diagonally. Therefore, the removal hole 13 is opened, but since the lid 3 is retracted diagonally, the refill can be taken out without interfering with the lid 3 when taking out the refill.

Next, in order to close the extraction hole 13, it is sufficient to release the pressure from the fingertip. Since the locking of the protrusion 61 with the locking portion 15 is in a semi-stable state, the locking is released and the knob 2 rises, as described above, and the lid 3
1, and closes the extraction hole 13, returning to the state shown in FIG.

In this way, with the sharp pencil refill case of the present invention, the ejection hole can be opened and closed simply by pressing the top surface of the notch with the tip of your finger and then releasing the pressure.
It can be opened and closed with one touch in the palm of your hand, making it extremely easy to operate. Moreover, since the biasing force of the spring body acts as a lid to reliably close the ejection hole, there is no fear that the ejection hole will open unexpectedly and the refill will fall out.

[Brief explanation of drawings]

1 and 2 show cross-sectional views of an embodiment of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Case body, 11... Partition wall, 12... Refill storage chamber, 13... Removal hole, 14... Guide wall, 1
5... Locking part, 2... Notsukuko, 3... Lid, 4...
...Elastic connecting piece, 5... Spring body, 6... Elastic rod, 6
1... Protrusion.

Claims (1)

[Scope of utility model registration request] The case body has a refill storage chamber and is provided with a refill removal hole, and a lid for the removal hole is connected by an elastic connecting piece, and the lower end is folded back into a groove shape to form an elastic rod. It includes a locking element that moves up and down within the case body, and a spring body that biases the locking element upward, and when the locking element is pressed down with a fingertip and lowered, the elastic connecting piece deforms and the refill can be removed. At the same time, the lid opens the ejection hole, and the protrusion formed on the side wall of the elastic rod locks with the locking part of the case body, which has a semicircular cross section, in a semi-stable state, and when the pressure from the fingertip is released, the spring releases. A sharp pencil refill case characterized in that the quasi-stable state is released by the urging force of the body, the locking element rises, and the lid closes the ejection hole.