A lead replenishing device for an active pencil
A lead and pencil technology, used in mechanical pencils, printing, writing utensils, etc., can solve the problems of cumbersome and time-consuming operation, unsanitary lead cores, and laborious core replacement.
Active Publication Date: 2016-04-20
WENZHOU TIANJIAO PEN IND
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AI Technical Summary
Problems solved by technology
The core-changing pencil of the bullet pencil core of the above structure solves the problems of pencil core retraction and tongue spring dislocation; however, when the lead in the core storage tube in the core-changing pencil is used up and the bullet lead needs to be replenished, it is necessary to Manual replacement, inserting one by one from the pencil lead inlet, the operation is cumbersome and time-consuming, and it is unhygienic to touch the lead with fingers; especially for younger students, it is more laborious to change the lead by themselves
Method used
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Embodiment Construction
[0034] Specific embodiments of the present invention such as Figure 1-4 Shown is a mechanical pencil. The mechanical pencil includes a lead replenishing device and a pressing member 2 provided with a one-way core inlet channel 21. The lead replenishing device includes a storage tube 3 for storing bullet lead. The storage tube 3 Comprising a tube body 33, a bullet lead core is provided in the tube body 33, and the end of the tube body 33 is provided with a core head assembly that retains the bullet lead core in the core storage tube 3, and the single assembly of the core head assembly and the mechanical pencil Inserting into the core inlet channel 21 constitutes a two-way open core inlet structure in which the necking assembly in the one-way core inlet channel is radially stretched and the outlet of the core storage tube 3 is opened. The bullet lead used in the present invention is to process the lead of an ordinary pencil into a stub lead in the shape of a bullet. When the b...
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A lead replacing device for a propelling pencil comprises a lead storage tube (3) used for storing bullet-shaped leads. A lead discharging head assembly used for keeping the bullet-shaped leads in the lead storage tube is arranged at one end of the lead storage tube. The lead discharging head assembly is connected to a unidirectional lead feed channel (21) of the propelling pencil in an inserted and matched mode, so that a bidirectionally opening lead feed structure that radially enlarges a necking-down assembly and opens an outlet of the lead storage tube is formed. The lead discharging head assembly that is matched with the unidirectional lead feed channel of the propelling pencil and allows unidirectional lead feeding is arranged on the lead storage tube, so the purpose that the lead is replaced conveniently without contact with the lead can be achieved merely by enabling the lead discharging head assembly to be matched with the unidirectional lead feed channel of the propelling pencil, and lead replacement is safer and more sanitary.
Description
technical field [0001] The invention relates to a stationery product, in particular to a non-shaving mechanical pencil. The lead of the pencil is not to be slashed and can be replaced. Just align the core tube with the one-way core inlet channel on the pencil and pour it in. Background technique [0002] Pencils are commonly used stationery by students. Ordinary pencils need to be constantly cut during use, and the nib needs to be repaired frequently. It takes time and effort to sharpen the pencil, and it is inconvenient to use. Therefore, it is gradually replaced by the sharpening-free pencil with bullet lead. [0003] One type of bullet pencil currently on the market is to divide the bullet lead into a number of pointed pencil sections and connect them up and down to form a sharpening-free pencil. Since the pencil is fixed by clamping up and down, it is easy to appear due to the weak connection. Breaking affects writing, and if the number of pencil sections is small, the ...
Claims
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IPC IPC(8): B43K21/00B43K21/02
CPCB43K21/02B43K21/16
Inventor 韩爱国郑根有郭礼庚
Owner WENZHOU TIANJIAO PEN IND