JPH0436946Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a refill case for a sharp pencil whose lid can be locked in an open position and a closed position.

Conventional technology Conventionally, refill cases for sharp pencils that can lock the lid in the open and closed positions have been manufactured by Jikaisho.
The one shown in Figures 1 and 2 of No. 58-185477 is known, but in this case, the convex part provided on the side surface of the lid body, where no elasticity occurs, is provided on the inside side of the case body. It was engaged and locked in the recess.

Problems to be Solved by the Invention Therefore, in the conventional device described above, since the protrusions and recesses do not have elasticity, if the lid is opened and closed frequently, the protrusions will wear out and become unable to lock. It was hot.

Means for Solving the Problems The present invention provides a lead outlet 1I which is open at the upper end of the main body 1 of the refill case as shown in FIG. The core outlet 1I can be attached freely by rotating the lid body 2.
In the refill case that is opened and closed, two recessed locking recesses are provided at appropriate positions on the outer circumferential surface of the lid 2, and a cut groove 2E that penetrates inside the locking recess of the lid 2 is provided for locking. The outer periphery having the locking recess is made elastic. On the other hand, a locking protrusion 1J that can engage with a locking recess of the lid body 2 is provided inside the upper end wall 1H of the main body 1 of the refill case.
The core outlet 1I of the main body 1 is closed by the lid 2 by being engaged with the closing locking recess 2D.

Operation In the state shown in Fig. 1, rotate the lid 2 and
When the locking protrusion 1J of the main body 1 is engaged with the opening locking recess 2C of the main body 1, the core outlet 1I of the main body 1 is opened and the core 3
can pass through. At this time, since the outer peripheral part of the lid body 2 having the locking recess is made elastic by the cut groove 2E, it can reliably engage the locking protrusion 1J of the main body 1, and the lid body 2 can be rotated. When the lid body 2 is opened and closed, the outer circumferential portion bends and easily comes off from the locking protrusion 1J, and the locking recess of the lid body 2 and the locking protrusion 1J of the main body 1 are securely engaged without wear even if the lid body 2 is opened and closed frequently. It is something that

Embodiment In FIG. 1 and FIG. 2, a lead storage chamber 1A is provided in the main body 1 of the refill case, and a lead storage chamber 1A is provided in the main body 1 of the refill case.
A split part 1B is provided at the upper part of A, and an end part 1C of the split part 1B is configured to be inclined downward. Further, an opening 1E is formed by opening slightly between the tip of the split portion 1B and the side inner wall 1D. A rotation shaft 2A of the lid body 2 is rotatably attached to the back surface 1F of the side wall located above the split portion 1B of the main body 1. A rotating portion 2B provided on the outer periphery of the side portion of the lid body 2 projects outward from the side opening portion 1G of the main body 1. Although not shown in the drawings, if a non-slip textured surface is provided on the surface of the rotating part, the rotating part can be rotated more easily. The upper outer peripheral surface of the lid body 2 has an opening locking recess 2C and a closing locking recess 2D.
Two locking recesses are provided, and a cut groove 2E passing through the locking recess is provided inside the locking recess, and a part of the cut groove 2E is cut out to provide elasticity to the outer peripheral portion having the locking recess. On the upper end wall 1H of the main body 1 of the refill case,
A core outlet 1I that is slightly wider than the opening 1E is provided, and a locking protrusion 1J that protrudes downward is formed inside the upper end wall 1H. The normal locking protrusion 1J is engaged with the closing locking recess 2D of the lid 2, and the upper locking step 2F of the lid 2 is an upper locking step 1K provided inside the upper end wall 1H of the main body 1.
The valve portion 2G of the lid body 2 and the side inner wall 1D of the main body 1 are closed so that the core 3 cannot pass through.
Further, a decorative plate 4 is attached to the surface of the main body 1 to constitute a refill case. In order to take out the core 3 in the core storage chamber 1A from this state, by rotating the rotating part 2B of the lid 2 with your finger, the outer periphery of the lid 2 will bend, and the closing locking recess 2D will move into the main body 1. Locking protrusion 1J
The lower locking step 2H of the lid body 2 comes into contact with the lower locking step 1L provided on the splitting portion 1B of the main body 1, and the opening locking recess 2C contacts the locking protrusion 1J. is engaged with. At this time, the valve portion 2G of the lid body 2 is spaced apart from the side inner wall 1D of the main body 1 and opened to allow the core 3 to pass through, resulting in the state shown in FIG. 3. In this state, if the top of the refill case is turned downward, the lead will pass through the lead outlet 1I due to its own weight and be discharged.

In addition, as shown in FIG. 4, the cutout part of the lid body 12 is eliminated, and a semicircular groove 12E is provided inside the locking convex part of the lid body 12 to impart elasticity to the outer peripheral part having the locking concave part. Even if you have one, you can still get the full effect of this idea.

Effects The present invention has a lid rotatably attached to the upper part of the main body of the refill case, two locking recesses that engage with the locking protrusions of the main body, and two locking recesses that engage with the locking protrusions of the main body. The feature is that a cut groove is provided on the inside of the locking groove to provide elasticity to the outer circumferential portion having the locking recess.

Therefore, when the lid is rotated to open and close the lead outlet of the refill case, the outer periphery of the lid having the locking recess is bent, and the locking recess of the lid may come off from the locking protrusion of the main body. Since they can be engaged, the engagement protrusion and the locking recess are less likely to wear out, resulting in significantly improved durability and the ability to rotate the lid much more easily.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view showing the refill case for the sharp pencil of this invention in a portable state, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 is the refill in Fig. 1. FIG. 4 is a vertical cross-sectional view showing another embodiment of this invention. 1... Main body, 1A... Core storage chamber of main body 1, 1B
...Split part of main body 1, 1C... End part of main body 1, 1
D... Side inner wall of main body 1, 1E... Opening of main body 1, 1F... Side wall back surface of main body 1, 1G... Main body 1
side opening, 1H... upper end wall of main body 1, 1I...
...core outlet of main body 1, 1J...locking protrusion of main body 1,
1K... Upper locking step of main body 1, 1L... Lower locking step of main body 1, 2, 12... Lid body, 2A... Lid body 2
2B... Rotating portion of the lid 2, 2C... Opening locking recess of the lid 2, 2D... Closing locking recess of the lid 2, 2E, 12E... Lid 2, 12 kerf, 2
F... Upper locking step of lid 2, 2G... Valve portion of lid 2, 2H... Lower locking step of lid 2, 3... Core, 4
... Decorative board.

Claims (1)

[Scope of utility model registration request] In the refill case, a lead outlet is provided at the upper end of the main body of the refill case, and a lid is rotatably attached to the top of the main body, and the lead outlet is opened and closed by rotating the lid. Two recessed locking recesses are provided at appropriate positions on the outer circumferential surfaces of the bodies 2 and 12, and grooves 2E and 12E passing through the locking recesses of the lids 2 and 12 are provided to form the locking recesses. Both of the two locking recesses have a locking protrusion 1 provided on the main body 1.
A refill case for a sharpening pencil characterized by being configured to be able to engage with J.