CN2395897Y - Push-type mechanical pencil and its cassette core tube - Google Patents

Abstract

The utility model discloses push type propelling pencil comprises a last pen-holder, a press device, a refill pipe, an ejector pin, a clamp is put the device and a pen-holder, its characterized in that presss from both sides and puts the tenon top of device and connect an ejector pin, its central core hole that supplies the refill to pass through that establishes, another puts a refill pipe between ejector pin and press device, but its tube chamber in the storage tube holding a plurality of refills, and its open end is then connected a stopcock, this stopcock supplies to guide the refill and is connected with the ejector pin, its inner neck hole only can let a refill pass through to get into to press from both sides and put the device through the refill hole. The utility model also provides a card formula refill tube that supplies push type propelling pencil to load.

Description

Push-type mechanical pencil and its cassette core tube

The utility model relates to a push-type automatic pencil, in particular to a push-type automatic pencil with a clip-type pen core tube. Moreover, the utility model also relates to a card-type pen core tube for filling a push-type mechanical pencil. The utility model belongs to the field of pen tools.

With the advancement of science and technology and the diversification of human activities, the development of pens tends to be diversified. That is, taking the pencils used by school children as an example, traditional wooden pencils, free-sharpening pencils and push-type mechanical pencils are generally used. For the majority.

Wherein, the traditional wooden pencil must cut the wooden pen holder by means of a pencil sharpener or a blade in use, and the pen core covered by it is exposed before writing. The sharpening-free pencil is to connect several core rod units in series in a hollow pen holder, and the front end of each core rod unit has a sharpened pen core, but when the pen core of a core rod unit is used up, it must be removed. down, and embedded in the top end of the penholder, so that the lowermost core rod unit protrudes from the end of the penholder, so that writing can be performed. But above-mentioned two kinds of existing pencils, due to the consideration in making, processing precision and write resistance, make its pen core roughly have a suitable diameter, must carry out pen core sharpening action after writing, just can make writing The stroke width maintains a certain thickness, so it is very inconvenient to use.

Therefore, the so-called push-type mechanical pencil came into being. Its structure is mainly to set a hollow core tube body in the pen shaft, and a pressing part is connected above it. The spring of the clamping part under the body is compressed, and the jaws at the end are opened, so that the elongated pen core passes through the clamping part and extends out of the rod cone at the bottom of the pen holder to write. Its advantage is that because the diameter of the pen core is kept constant, the width of the strokes is consistent when writing, and the consumable is only the pen core, and because of its environmental protection requirements, it has gradually replaced the existing wooden and non-sharpening pencils.

In fact, the refills of push-type mechanical pencils are pre-stored in the hollow core storage tube. If the refills are used up, the pressing part must be removed to replenish new refills. Because the diameter of the refill is very small, Easy to cause breakage. In addition, finger contact with the refill is unavoidable during refilling, which often results in finger stains. In addition, the space inside the core storage tube is too small to accommodate too many refills, so as to reduce frequent refill operations and other problems. These are indeed the common shortcomings of the current push-type mechanical pencils.

The task of the utility model is to propose a push-type mechanical pencil and a cartridge-type refill tube for filling the push-type mechanical pencil, so that this kind of mechanical pencil can overcome some defects shared by existing mechanical pencils.

The technical scheme adopted to implement the above-mentioned tasks of the utility model is as follows: this push-type automatic lead is connected with a push rod at the top of the tenon of the clamping device, and a core hole for the passage of the pen core is established in the center; The pen core tube is placed between the ejector rod and the pressing device. The tube chamber in the storage tube can accommodate multiple pen cores, and its open end is connected with a tube plug, which is used to guide the pen core and connect with the top. If it is connected by a rod, its inner neck hole can only allow a pen core to pass through, so as to pass through the core hole and enter the clamping device; there is a rod cone on the top of the top tenon, and the top and bottom of the pipe plug have a set opposite to each other. Guide the pen core and the top and bottom cones that are fitted and connected with the rod cone; when the pen core tube is not in use, the opening of the tube plug can be sealed with a sealing piece or a T-shaped plug; the lower pen shaft is tapered A core sleeve can be socketed in the end hole of the part, and there is a step-shaped sleeve hole in it, and a guide ring is embedded in the upper part to guide the pen core to protrude from the end of the sleeve hole; the card-type pen core tube includes: a The storage tube has a hollow tube chamber that can accommodate multiple pen cores, and has an open end on it; a tube plug is connected to the open end, which can guide the pen core and connect with the ejector rod, and its inner neck hole is only It allows a pen core to pass through, so as to pass through the ejector rod and enter the clamping device; wherein the top and bottom of the tube plug have a top and bottom cones which are oppositely arranged for guiding the pen core and fittingly connected with the ejector rod; The opening of the tube plug can be sealed by pasting a sealing sheet or by a T-shaped plug.

Now in conjunction with the embodiment shown in the accompanying drawings, the utility model push-type propelling pencil is further described. in:

Fig. 1 is the three-dimensional exploded view of the push-type mechanical pencil of the present invention;

Fig. 2 is a sectional view of the combined utility model, showing that the pressing action has not yet been performed;

Figure 3 is a partially enlarged view of Figure 2;

Fig. 4 is another sectional view of the combined utility model, showing the pressing action;

FIG. 5 is a partially enlarged view of FIG. 4 .

As shown in Figures 1 to 3, the push-type mechanical pencil of the utility model is made up of an upper pen holder 1, a pressing device 2, a pen core tube 3, an ejector rod 4, a clamping device 5 and a lower pen holder 6.

Wherein, the upper pen holder 1 is a hollow rod-shaped object, and its top opening 11 is provided with a limiter 12, in addition to accommodating the pressing device 2, it can also be limited to prevent it from coming out of the opening 11. The bottom of the upper pen holder 1 is provided with a connecting portion 13, which is connected with the lower pen holder 6 by screwing or snapping, and the internal space after the combination of the two can accommodate the pen core tube 3, ejector rod 4 and clamping device 5.

The pressing device 2 is a known device, which is arranged in the opening 11, mainly by pressing a pressing rod 21 to make it move longitudinally in the stopper 12, so as to squeeze the refill rod 3 which will be described later. As shown in the accompanying drawings of the utility model, it is a part of the structure of the existing key-jumping type pressing device, so it is not intended to go into details here. Of course, the pressing device 2 of the present invention is not limited to what is shown in the drawings. In addition, according to the disclosure of the known technology, an eraser A can be sleeved on the top of the pressing rod 21, and then inserted into a pressing cap B. When the pressing cap B is pressed, the pressing rod 21 can be moved down, and then bounce back by the action of the spring 52 of the clipping device 5 .

The pen core tube 3 is made up of a storage tube 31 and a tube plug 32 with a size slightly smaller than the inner diameter of the upper pen holder 1. The hollow tube chamber 311 inside the storage tube 31 can accommodate a plurality of pen cores, and its opening The end 312 is fitly connected with the pipe plug 32 . The top and bottom of the pipe plug 32 each have a top cone 321 and a bottom cone 322 that are arranged oppositely, and the neck 323 aperture therebetween can only allow a pen core to pass through, so that the pen core can enter the ejector rod 4 Inside.

The ejector rod 4 is a rod body, the rod cone 41 at the top is connected with the bottom cone 322 , and the core hole 42 through the center can be passed through by the pen refill, and the rod end 43 at the bottom is inserted into the clamping device 5 .

The clamping device 5 is a known mechanism, which mainly accepts the pen core delivered by the ejector rod 4, and the pen core is stretched out from the lower pen holder 6 by the clamping and releasing action of the jaws. As disclosed in the utility model, the clamping device 5 is composed of a spring 52 and an embedded tenon 53 sequentially accommodated in the rod groove 511 at the top of the step-shaped rod 51 . The top of the tenon 53 is connected with the rod end 43 , and the bottom is fitted with a jaw 54 . The clamping bar 541 on the top of the clamping jaw 54 is connected to the bottom of the tenon 53 through a clamping ring 55 accommodated in the bottom ring groove 512 of the stepped bar 51 to form a linkage. In addition, a ring edge 551 protrudes from the bottom of the clamping ring 55 and leans against the opening of the ring groove 512 , while two or more tapered jaws 542 of the clamping jaws 54 are accommodated in the clamping ring 55 . If the tenon 53 is stressed, the spring 52 will be squeezed, and the jaws 54 and the clamping ring 55 will be moved down synchronously. When the ring edge 551 touches the preset stop 62 of the lower penholder 6, it will stop moving. When the claw piece 542 continues to move down, it is in an open shape, and then the pen core in the core hole 42, the tenon 53 and the jaw 54 is pushed down a short distance; if the tenon 53 stops being stressed, the spring 52 The rebound makes the tenon 53 bounce back, and the claw piece 542 is retracted into the clamping ring 55, and the pen core can be clamped to write.

The lower pen holder 6 is also a hollow rod-shaped object, and its top is corresponding to the connecting portion 13 to establish a pivot joint 61 to facilitate the connection of the two, and a stop 62 is established on the inner wall of its bottom as a stop for the clamping ring 55 to move downward. Limit, in order to facilitate the expansion of each claw piece 542. In addition, an end hole 63 is provided at the bottom of the lower pen tube 6 for the pen core to stretch out for writing. Moreover, a core sleeve 64 can be sleeved in the end hole 63, and a step-shaped sleeve hole 641 is arranged in it, and a guide ring 642 is embedded in its upper section, so as to guide the pen core to protrude from the end of the sleeve hole 641. Furthermore, the gripping portion of the lower pen holder 6 can be sleeved with a known soft rubber sleeve 65 or provided with concave-convex patterns to increase the tactile feeling with fingers.

Moreover, the pen core tube 3 proposed by the utility model can replace the existing core storage box for the pen core, and it can be combined with the push-type mechanical pencil proposed by the utility model to replace the existing core storage tube body. And outside the tube plug 32 of this pen core tube 3, can stick sealing sheet or seal it with T-shaped stopper, make it can avoid pen core to come out when retailing.

Through the implementation of the utility model, the setting of the refill tube makes it form a card connection with the pen, which not only increases the storage space for the refill, but also effectively replaces the existing core storage tube without causing the pen to It is a pity that the core causes a break when replenishing. Furthermore, due to the engaging connection between the pen core tube and the ejector rod, fingers will not touch the pen core during use. And, according to statistics, after taking out several pen cores in the existing pen core storage core box, just because of the user's arbitrarily placing, or forgetting to place where, so that only about 50% of the pen cores are used for writing, However, it cannot be fully used, resulting in a waste of resources; on the contrary, if the pen core tube of the present utility model is used, the pen core can be fully used without the trouble of this problem. In addition to avoiding the waste of resources, it can also reduce the number of consumers. expenditure.

What the utility model discloses is a kind of preferred embodiment, for example, all partial changes or modifications originating from the technical idea of the utility model and easily deduced by those who are familiar with the art will not deviate from the utility model scope of patent rights.

Claims (7)

1. push type propelling pencil, this propelling pencil is that the peristome at penholder top on is established a known stopping means, with depression bar ccontaining and location one press device; Go up the penholder bottom in addition and establish a junction, be connected with articulated section with the masthead portion of starting writing; This time penholder bottom interior wall is established a backstop, and terminal tapered portion has a stomidium, in addition a known device that folds up is located at down in the penholder; This folds up device is a ccontaining in regular turn spring and an embedding tenon in the bar groove of single order shape masthead portion, and the annular groove ccontaining of its bottom folds up ring, and the ring edge of its end is the limit of ending that moves down with backstop; In addition the clamping bar at jaw top is by folding up ring, rank shape bar and be embedded in the caulking groove bottom, and two or above calvus of jaw bottom can make pen core generation displacement in it, and stretch out outside stomidium so that write by embedding tenon, spring with fold up the relative action of ring;

It is characterized in that the embedding tenon top that folds up device connects a push rod, its central authorities establish a core hole that supplies pen core to pass through; In addition a pen core is put between push rod and press device, pipe chamber in its material storage pipe can ccontaining a plurality of pen cores, and its openend then connects a pipe close, and this pipe close reaches for the guiding pen core and is connected with push rod, neck hole only can allow a pen core pass through in it, so that by the core hole and enter and fold up device.

2. push type propelling pencil as claimed in claim 1 is characterized in that tenon top, top establishes bar awl, and the top of pipe close, bottom respectively have one and be and be oppositely arranged for the guiding pen core and bore the chimeric top that is connected, base cone portion with bar.

3. push type propelling pencil as claimed in claim 1, when it is characterized in that pen core tube does not use, but the opening mat of its pipe close is pasted mounting or with T type stick harness involution.

4. push type propelling pencil as claimed in claim 1, but it is characterized in that interior socket one core retainer plate of stomidium of penholder tapered portion down, and the trepanning that has rank shape in it, its epimere are set a lead ring, are stretched out by the cover bore end with the guiding pen core.

5. cassette pen core tube, this pen core tube is to be installed in the push type propelling pencil, and between press device and have the folding up between the device of push rod, it is characterized in that this pen core tube comprises:

One material storage pipe has the pipe chamber of a hollow can ccontaining a plurality of pen cores, and have an openend on it;

One pipe close is to be connected openend, can guide pen core and is connected with push rod, and neck hole only can allow a pen core pass through in it, so that by push rod and enter and fold up device.

6. pen core tube as claimed in claim 5, top, the bottom that it is characterized in that pipe close respectively have one be oppositely arranged for the guiding pen core with the chimeric top that is connected of push rod, base cone portion.

7. pen core tube as claimed in claim 5, but the opening mat that it is characterized in that pipe close is pasted mounting or with T type stick harness involution.

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