DE35867C - Feed, locking and release device on holders for pencils and the like - Google Patents

Description

IMPERIAL

PATENT OFFICE.

In the holder according to FIGS. 1 and 2, the lead tube b sits firmly with its lower end in the outer sleeve α. The lead tube b has a slot c and is provided on its lower part with the resilient clamping jaws d . In the pipe b is the lead e. And above the same is the slide g with the gripper g ¹ , which the latter protrudes from the pipe slot c and engages in the threaded sleeve h. The sleeve h can be rotated on the tube b (as in the case of holders with a so-called English guide) and is arranged to be displaceable in the longitudinal direction. It is at the approach h ¹ from the one on the Hülsenabbug a '. resting coil spring! lifted and acts in this position, with their Endenabbug h ² on the jaws a, Fig. 1. Pressing on from the sleeve α protruding sleeve head h ^3, Fig. 2, it is through the sleeve H of the 'shifter gg ¹ in the Taken lengthways and the lead released by the clamping jaws for use. If the pressure on the sleeve head / j ⁸ ceases, the lead remains in the advanced position when the holder is horizontal, while the sleeve h with the slide gg ¹ returns to its original position and clamps the lead the lead can then be returned to its original position on the sleeve head h ^3. Since the slide gg ^{1 can} also be moved in the tube b by turning the sleeve h , it can always be given such a position if the lead length is different, which makes it possible to advance the lead by pressing on the sleeve head h ^s . Of course, you can also advance the lead simply by turning the sleeve h ; in this case, the slide gg ¹ must also be returned by turning the sleeve h if you do Wants to bring lead back to its original position.

The holder according to FIGS. 3, 4 and 5 partly coincides with the previous one, only here the clamping jaws d fall away on the tube b and the lead e is also firmly connected here to the slide gg ^l. As a result of this connection, if only the device described above were used here, the lead could probably be advanced in the longitudinal direction by pressure on the sleeve head h ³ , but could not be held in the advanced position. In order to be able to achieve the latter, a locking and release device is attached here, which can also be used on holders of other constructions. The same consists of the Rohrbezw firmly seated on the sleeve h. Slider k with the indentation k ¹ , from the resilient grippers m attached to the sleeve α , which are constantly pressed against the slider k as a result of their own spring force, and from the ring η, which is slidably arranged on the sleeve h above the slider indentation k ¹ , Fig. 3.

If, by pressing on the sleeve head h ^3, the sleeve h with the slide gg ¹ and the lead e is pushed forward in the longitudinal direction, Fig. 4, the grippers m, by pushing the movable ring η back against the protruding sleeve head h ³ , open the slider entry k ^l and spread there-

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Claims (2)

even if now the pressure on the sleeve head h3 ceases, firmly. You can now use the lead. If you want to return the same to the original position, then by repeated pressure on the sleeve head h3, FIG. 5, the sleeve h is pushed forward again as far as the sleeve head projection hl allows. Here, the movable ring η is carried along by the protruding sleeve head hs and the gripper m is pushed laterally away from the entry k1 of the slider k by the latter. If the pressure on the sleeve head h3 now ceases, the ring η is kept free by the grippers m until, when the sleeve h shoots up, the sliding piece k k1 hits the ring η and this, because the spiral spring i, the spring force of the gripper m overcomes, lifts out of the grabs. As a result, the grippers m come back laterally to the slide k and the parts hge again into the position as in FIG If the lead length differs, a position can be given at any time which enables the lead to be advanced by pressing on the sleeve head h3. In addition, the lead can also be pushed forward for use by simply rotating the sleeve / 2, without the action of the locking and release device, and returned when not in use. The thread pressed into the sleeve h can also be replaced by a spiral to be attached in the sleeve. The ring η can be given a guide on the sleeve h which allows its displacement on the sleeve but prevents its rotation around the sleeve. Pa τ ε nt claims: 1. The slotted tube bc provided with or without clamping jaws d in connection with the sleeve h , the slide gg ^l and the spiral spring i, for the purpose of moving the slide, which is rotatable on this, but also displaceable in the longitudinal direction, is provided with a thread r gg ^l with the lead etc .. to be able to advance both by moving the sleeve hr in the longitudinal direction and by rotating it. 2. The resilient grippers m fastened to the stationary sleeve α in connection with the sliding piece k attached to the sliding sleeve h with an indentation k \ the ring η, which is arranged above the sliding element indentation k ¹ and which can be moved within certain limits, and the spiral spring i for the purpose of in order to lock the sleeve h in the advanced position and to release it from the lock by pushing it again and to be able to return it to its original position. For this purpose ι sheet of drawings.