Abstract: An ink cartridge structure includes a resilient device coupled to an ink cartridge for absorbing impact energy acting on the ink cartridge for protection of the ink cartridge. The resilient device includes a connection bar mounted to the ink cartridge and is coupled to a retention bar that is accessible by a user with a resilient element therebetween so that the resilient element provides cushioning to the ink cartridge. The connection bar is partially fit into a hollow portion of the retention bar and forms a vent hole that is in communication with the ink cartridge so that when the retention bar, under the resilient support by the resilient element, is manually moved reciprocally with respect to the connection bar, air is pumped, through the vent hole, into the ink cartridge to force the ink contained in the ink cartridge to ward a writing tip.

Abstract: Au automatic pencil comprising an outer pencil tube, a pencil head, a clipping device, a guiding tube and a pencil lead cylinder, characterized in that a resilient element is mounted between the guiding tube and the clipping device allowing the guiding tube to reciprocate upward and downward within the stopper. The resilient element urges the guiding tube to rise upward if the pencil lead cylinder is not depressed, and to keep a distance from the pencil lead, and to allow another pencil lead to be inserted. The pencil lead cylinder can adapt a plurality of pencil lead.

Abstract: Au automatic pencil comprising an outer pencil tube, a pencil head, a clipping device, a guiding tube and a pencil lead cylinder, characterized in that a resilient element is mounted between the guiding tube and the clipping device allowing the guiding tube to reciprocate upward and downward within the stopper. The resilient element urges the guiding tube to rise upward if the pencil lead cylinder is not depressed, and to keep a distance from the pencil lead, and to allow another pencil lead to be inserted. The pencil lead cylinder can adapt a plurality of pencil lead.

Abstract: An ink cartridge structure includes a resilient device coupled to an ink cartridge for absorbing impact energy acting on the ink cartridge for protection of the ink cartridge. The resilient device includes a connection bar mounted to the ink cartridge and is coupled to a retention bar that is accessible by a user with a resilient element therebetween so that the resilient element provides cushioning to the ink cartridge. The connection bar is partially fit into a hollow portion of the retention bar and forms a vent hole that is in communication with the ink cartridge so that when the retention bar, under the resilient support by the resilient element, is manually moved reciprocally with respect to the connection bar, air is pumped, through the vent hole, into the ink cartridge to force the ink contained in the ink cartridge to ward a writing tip.

Abstract: The mechanical pencil contains a tubular body having a bottom cap and a top cap. Inside the mechanical pencil, a tip element is positioned inside and protrudes from the bottom cap, a clamping mechanism is above the tip element with a spring therebetween, and a sliding mechanism is above the clamping mechanism. A single lead is stored in the sliding mechanism and is held by the clamping mechanism. When the lead outside the tip element is used up and the tip element is pressed, the spring is compressed and a segment of the lead is advanced into the tip element. When the tip element is released, the tip element is pushed downward by the spring and the segment of the lead is brought along with the tip element. By repeating the process a number of times, the lead would be extended out of the tip element.

Abstract: A combination pen includes a tubular barrel having two open ends for selectively receiving different stationery devices so that different stationery devices can be combined together with the barrel. The stationery devices received in the barrel can be replaced if desire so that any combination that is desired by a user or that is of practical use can be made with respect to different kinds of stationery devices. The stationary devices can be selectively combined together for saving of space and ease of stowage.

Abstract: An automatic pencil assembly includes a barrel, a point, an urging member, two clamping members, a slide, a guide pipe, a lead, a cap, and a push member. Thus, the lead is pressed downward by the first plug or second plug of the push member to overcome the holding force of the clamping members, so that the lead is inserted into and protruded outward from the slide easily and conveniently.

Abstract: An automatic pencil structure includes a barrel, a tip cover, a connecting barrel, and a conducting tube. The barrel is provided with an inner thread screwed on an outer thread of the connecting barrel. The tip cover has a rear portion provided with a sleeve fitted in the connecting barrel and a front portion receiving the slide member. The slide member has a front portion protruding outward from the tip cover and a rear portion including a retaining ring for retaining the pencil lead by a friction action. The clip member has two opposite sides each defining an arcuate recess receiving a ball. The clamp ring is enclosed around the clip member has a bottom defining an inclined surface urged on the ball and a top defining a locking hole for securing the conducting tube and a pencil lead hole allowing passage of the pencil lead. The conducting tube defines a passage for receiving the pencil lead. The passage is connected to the pencil lead hole of the clamp ring and has a top defining an inner curved portion.