ES1248115U - DOUBLE PORTAGES (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Double portatizas characterized because it includes - an elongated and hollow central body (1), with threaded ends (16) at both ends, provided in its middle part with a longitudinally arranged groove (10), - two end pieces (2), also hollow, of section coincident with the central body (1), with a threaded end (17) capable of being assembled with one of the threaded ends (16) of the central body (1), - two hollow adapters (3), with one open end, to house the chalk (4) inside, housed inside the central body (1), at both ends, and partially emerging through the end pieces (2), with longitudinal displacement capacity inside the central body (1), - two springs (9) located around part of the adapters (3) and inside the central body (1), - a piston (7) housed inside the central body (1), in its middle part, with longitudinal displacement capacity inside the central body (1), and - an external actuator (5), located on the slot (10), and secured to the piston (7) by mechanical means through said slot (10). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Double carrier

This descriptive memory refers, as its title indicates, to a double holder of the type used mainly in educational centers, workshops, etc. to write or make marks using both white and other colored chalk, characterized in that it comprises a elongated and hollow central body, closed at both ends by threaded end pieces, two hollow adapters, with one end open, to house the chalk inside, with a spring located in each of the adapters, exerting pressure towards the interior, a piston and an external actuator integral with the piston. This holder can adopt two positions, one of rest, in which the chalks are fixed, and the other of opening of either of the two ends, by human action on the external actuator, releasing the chalk.

Field of the Invention

The invention relates to the field of writing elements, more specifically to auxiliary elements for containing chalk.

Current state of the art

Currently enough devices are known that allow to carry a chalk inside, for use or transport without staining too much. We can find them described, for example, in the patents ES1037967 "Chalk holder for writing", ES1142158 "Laser holders " and FR2396658 "Stylo multicraies", but they are all for a single chalk, having to use different devices for each of the chalks or for each of the colors, with the consequent nuisance.

Some types of double holders are also known, such as those described in US2785654 "Double ended chalk and crayon holder ', CN106853733 " Double-head antiskid chalk sleeve ", CN201092182 " Double-end rotary type crayon " and CN201165109 " Doubleended chalk holder ', but they are still two simple portatites attached to each other, and each chalk must be fixed or released by a different actuator, usually one at each end, which is quite uncomfortable for normal use. In addition, the types of chalk fixation are manual and are not usually very reliable, depending a lot on manual actuation. Description of the Invention

In order to solve the current problems regarding the use of several chalks in the same device, the double object holder of the present invention has been devised, which includes

- an elongated and hollow central body, preferably cylindrical, provided in its middle part with a longitudinally arranged slot, closed at both ends by threaded end pieces, also hollow,

- two hollow adapters, with an open end, to house the chalk inside, housed inside the central body, at both ends, and partially emerging through the terminal pieces, with a spring located in each of the adapters , exerting pressure towards the interior.

- a piston housed inside the central body, in its middle part, and

- an external actuator, located on the groove joined to the piston.

Each of the adapters comprises

- an area with a larger diameter, at the closed end, located towards the middle of the central body,

- an area with a smaller diameter than the previous area, capable of entering the interior of the dock,

- a flat step that defines the change between the two previous zones, on which one end of the spring supports, while its other end coincides with the innermost part of each end piece,

- a plurality of grooves, longitudinally arranged, starting at the open end of the adapter and with a length less than or equal to the length of the area, defining flexible longitudinal tabs that, at the open end of the adapter, open slightly to the outside, providing to the open end of the adapter with a diameter slightly larger than the area.

The holder can take two positions, one at rest, in which the chalks are fixed by pressing the flexible longitudinal tabs through the spring, and can either be transported or used for writing, and another to open any of the two ends, by human action in the external actuator, which, through the piston, is transmitted to the adapter, squeezing the spring and allowing the adapter to open the longitudinal tabs releasing the chalk, in which it can be extracted to change it or compensate for wear , or enter it inside, to carry the carrier without staining.

Advantages of the invention

This presented double holder provides multiple advantages over currently available devices, the most important being that this mechanism allows the simultaneous use of two chalks, of the same or different color, with automatic fixing and locking by spring, in the same device and with a single actuator for both.

Another important advantage is that it allows an efficient operation, so as not to waste the time of the person using it, at the same time that it is fast and does not produce errors that hinder the activity that the person in question wants to carry out.

It is also important to highlight its comfort, since all the double portatillos as a whole are comfortable, encouraging the person who uses it to be comfortable using it, even giving them a feeling of pleasure simply writing with it.

It is also important to highlight its portability, since it does not represent an extra load to take care of, and it is compact enough to fit in most cases, avoiding having to carry it by hand.

Another notable advantage is its durability, since it has the ability to withstand impacts, such as falls to the ground or other collisions that may occur in its usual evolution, not breaking and working the same as the first day.

We also want to highlight that this device has low production costs, thanks to using common materials and not requiring complicated manufacturing processes.

Description of the figures

In order to better understand the object of the present invention, a preferred practical embodiment of a double carrier has been represented in the attached drawing.

In said plane figure -1- shows elevation views, plan and profile of the invention. Figure -2- shows a sectioned side view, without chalk inside.

Figure -3- shows an exploded view, showing the main elements separately.

Figure -4- shows a side view of an adapter.

Figure -5- shows a top view of the central body, showing the slot in its middle part.

PREFERRED EMBODIMENT OF THE INVENTION

The constitution and characteristics of the invention will be better understood with the following description made with reference to the attached figures.

As can be seen in Figures 1, 2, 3 and 5, it is illustrated that the double carrier comprises

- an elongated and hollow central body (1), with threaded ends (16) at both ends, provided in its middle part with a longitudinally arranged groove (5), - two end pieces (2), also hollow, of section coinciding with the central body (1), with a threaded end (17) capable of being assembled with one of the threaded ends (16) of the central body (1),

- two hollow adapters (3), with one open end, to house the chalk (4) inside, housed inside the central body (1), at both ends, and partially emerging through the end pieces (2 ), with longitudinal displacement capacity inside the central body (1),

- two springs (9) located around part of the adapters (3) and inside the central body (1),

- a piston (7) housed inside the central body (1), in its middle part, with longitudinal displacement capacity inside the central body (1), and - an external actuator (5), located on the groove (10), and secured to the piston (7) by mechanical means through said slot (10).

Preferably, both the central body (1) and the end pieces (2) are cylindrical. Both elements can be made of metal, thermoplastic material or wood.

As especially illustrated in Figure 4, each of the adapters (3) comprises - a zone (11) of greater diameter, at the closed end, located towards the middle part of the central body (1),

- an area (12) of smaller diameter than the area (11), capable of being inserted inside a spring (9),

- a flat step (13) defining the change from zone (11) to zone (12), on which one end of the spring (9) rests, while the other end of the spring (9) coincides with the innermost part of each end piece (2),

- a plurality of grooves (14), longitudinally arranged, starting at the open end of the adapter (3) and with a length less than or equal to the length of the area (12), defining flexible longitudinal flanges (15) that, in the open end of the adapter (3), open slightly to the outside, giving the open end of the adapter (3) a diameter slightly larger than that of the area (11).

As can be seen from figure 2, the holder can adopt two positions, one of rest, in which the chalks are fixed, and can either be transported or used for writing, and another to open either end, By means of human action in the external actuator (5), in which the chalk (4) can be extracted, to change it or compensate for wear and tear, or to introduce it inside, to transport the carrier without staining.

When in a rest position, without human action, each spring (9) is in a relaxed position, pushing each adapter (3) along the flat step (13) towards the interior of the central body (1), and the ends of the flexible longitudinal flanges (15), when pressed against the end piece (2), are slightly flexed inwards, exerting pressure on the chalk (4) and blocking its longitudinal movement inside the adapter (3).

When in an open position, the person has moved the external actuator (5), and therefore the piston (7) towards one of the ends of the central body (1), the piston (7) has pushed, by its closed end, to the adapter (3) of that end towards the outside, compressing the spring (8), whereby the ends of the flexible longitudinal flanges (15) are displaced towards the outside, and, as they are no longer pressed against the end piece (2), are slightly flexed towards the outside, without exerting pressure on the chalk (4), allowing its longitudinal movement inside the adapter (3). Preferably the threaded ends (16) of the central body (1) are internal, and the threaded end (17) of the end pieces (2) is external, although it is provided that, alternatively, the threaded ends (16) of the body central (1) are external, and the threaded end (17) of the terminal pieces (2) are internal.

Also preferably, the length of the central body (1) is most of the length of the carrier, while the length of the visible part of the end pieces (2) is much smaller than that of the central body (1), although it is An alternative embodiment is provided in which the length of the central body (1) and the length of the visible part of the end pieces (2) are approximately the same.

The mechanical means for securing the external actuator (5) and the piston (7) can be a screw (6) passing through the external actuator (5) and threaded in the piston (7), or alternatively a screw ( 6) through the external actuator (5) and a nut (8) inserted into the piston (7).

The person skilled in the art will readily understand that he can combine features of different embodiments with features of other possible embodiments, provided that such a combination is technically possible.

All the information referring to examples or embodiments forms part of the description of the invention.

Claims (1)

1 - Double rack characterized by comprising - an elongated and hollow central body (1), with threaded ends (16) at both ends, provided in its middle part with a longitudinally arranged groove (10), - two end pieces (2), also hollow, of section coinciding with the central body (1), with a threaded end (17) capable of being assembled with one of the threaded ends (16) of the central body (1), - two hollow adapters (3), with one open end, to house the chalk (4) inside, housed inside the central body (1), at both ends, and partially emerging through the end pieces (2 ), with longitudinal displacement capacity inside the central body (1), - two springs (9) located around part of the adapters (3) and inside the central body (1), - a piston (7) housed inside the central body (1), in its middle part, with longitudinal displacement capacity inside the central body (1), and - an external actuator (5), located on the groove (10), and secured to the piston (7) by mechanical means through said slot (10). 2 - Double carrier, according to the previous claim, characterized in that both the central body (1) and the end pieces (2) are cylindrical. 3 - Double carrier, according to any of the preceding claims, characterized in that each of the adapters (3) comprises - a zone (11) of greater diameter, at the closed end, located towards the middle part of the central body (1), - an area (12) of smaller diameter than the area (11), capable of being inserted inside a spring (9), - a flat step (13) defining the change from zone (11) to zone (12), on which one end of the spring (9) rests, while the other end of the spring (9) coincides with the innermost part of each end piece (2), - a plurality of grooves (14), longitudinally arranged, starting at the open end of the adapter (3) and with a length less than or equal to the length of the area (12), defining flexible longitudinal flanges (15) that, in the open end of the adapter (3), open slightly to the outside, giving the open end of the adapter (3) a diameter slightly larger than the area 4 - Double carrier, according to any of the preceding claims, characterized in that the threaded ends (16) of the central body (1) are internal, and the threaded end (17) of the terminal pieces (2) is external. 5 - Double carrier, according to any of the preceding claims 1 to 3, characterized in that the threaded ends (16) of the central body (1) are external, and the threaded end (17) of the terminal pieces (2) is internal. 6 - Double carrier, according to any of the previous claims, characterized in that the length of the central body (1) is most of the length of the carrier, while the length of the visible part of the end pieces (2) is much more smaller than that of the central body (1). 7 - Double carrier, according to any of the preceding claims 1 to 5, characterized in that the length of the central body (1) and the length of the visible part of the end pieces (2) is approximately the same. 8 - Double carrier, according to any of the preceding claims, characterized in that the mechanical means for securing the external actuator (5) and the piston (7) are a screw (6) passing through the external actuator (5) and threaded in the piston (7). 9 - Double carrier, according to any of the preceding claims 1 to 7, characterized in that the mechanical means for securing the external actuator (5) and the piston (7) are a screw (6) passing through the external actuator (5) and a nut (8) inserts into the piston (7).