Patent Description:
In the state of the art, there are known various types of doors used as structural elements in cabinets, lockers or luggage storage rooms, in which the key aspect is to ensure the security of the stored content. Particularly noteworthy are devices for storing parcels in the form of parcel lockers, which are a system of post office boxes, used to store parcels with the option of collecting or leaving the parcel at a time convenient for the user. For this reason, they are characterized by simple construction, durability and ease of production and assembly. They are also usually resistant to burglary attempts. Cabinets of this type usually contain many lockers of various sizes. Individual lockers are provided with a door controlled usually by one control unit, located in an area of the cabinet that is easily accessible to the user. In such devices, security and communication means are often used, consisting of sensors, cameras or lighting elements.

In the prior art, cabinet door is known for use in cabinets, including constructions provided with electronically controlled locks. Patent description <CIT> discloses a cabinet door made of a sheet of metal constituting a front panel and containing side walls in the form of an inner edge as well as the upper and lower edges of the front panel, which are bent at right angles to the inside of the cabinet body constituting an internal edge, an upper edge and a lower edge, respectively. Furthermore, the upper and lower edges are bent upwards and protect the construction against water entering the cabinet, ensuring water drainage to the outside. Furthermore, the upper edge of the front panel contains a hinge hole in which a Teflon sleeve is mounted, constituting an electroinsulator in the entire construction, allowing to eliminate or significantly reduce the phenomenon of electrochemical corrosion. The cabinet door is attached to the cabinet body with spacers in the form of brackets in the form of a flat sheet. In this solution, the door has a simple construction and prevents the potential difference and, consequently, corrosion resulting from the difference in materials of which the door and the cabinet body are made. Furthermore, the door can be provided with a grounding pin and a metal cable attached to the inside of the locker.

From KR20090005940A a footwear case is known that enables a user to confirm whether it is available or not from the outside. The footwear case comprises a main body with a boxes equipped with a doors and a sensing member which is installed inside the box and operated in receiving shoes. The footwear case is also equipped with a display unit which is linked with the sensing member and which visually recognizes the shoes acceptance or not, and shows it and as a rule is configured to display visually whether the shoes are stored or not.

Document <CIT> discloses a mailbox that uses a light signal to indicate whether there is a mail in the mailbox. The light signal is visible from the outside without opening the mailbox. The mailbox comprises a LED lamp, which is fastened inside the mailbox with an adhesive bond or with permanent magnets. The LED lamp has an infrared sensor that works as a motion detector. Said sensor detects the insertion of an object into the mailbox and activates a flashing light in the LED lamp. An additional, external LED lights might be connected and installed on the outside of the mailbox. They can be installed also behind the transparent name tag of the mailbox. The external LED lights enable the flashing signal to be transmitted to the outside of the mailbox if the initial function is not sufficient.

While from the document <CIT> there is known a method of delivering a parcel to a recipient, which uses a system of post office boxes and enables an identification of an appropriate locker in a cabinet with the unit of lockers, depending on the size of the delivered parcel. The cabinet with the unit of lockers is provided with a central communication and control unit ensuring access control to each locker by controlling the locking mechanisms that each locker is provided with. In this solution, it is disclosed that each locker can be assigned with a light indicator for informing the user of the accessibility of the locker. The presented system is configured in such a way as to control access to each of the cabinets by using at least one locking mechanism, suitably compatible with each cabinet. Furthermore, one embodiment discloses a cabinet with at least one light indicator configured to inform the user which of the individual cabinets is unlocked or accessible.

In the state of the art, a device acting as a parcel exchange point is also known from the <CIT>. The device has the form of a cabinet containing storage lockers of various sizes, depending on the individual dimensions of the parcel. The outer parts of individual lockers are doors that can be provided with slots for letters. The door has a lock, which protects against uncontrolled opening of the locker. The lock can include a latch member, a latch engagement and disengagement member that are remotely controlled and consequently lock the door movement. The door of the locker is pivotally connected to one of the walls of the cabinet by means of at least one hinge. In this way, it is possible to rotate the door in relation to the locker and the cabinet. What's more, in order to facilitate use and provide information which of the lockers is accessible, an illuminating element has been installed inside the locker or on its door, which can be a light bulb, LED diode or any other light emitting object. The light effect varies depending on the accessibility of individual lockers. Depending on the configuration, the light on or off will signal the accessibility of a given locker. Furthermore, the lamp can be configured so that, in addition to indicating the accessibility of the locker, the user will also receive information about the opening of the door of the locker, and the illuminated interior will make it easier to see its content. The role of lighting the inside of the locker is performed primarily by the lighting element mounted inside it. The door can also be provided with sensors, in the form of, for example, a camera or a device used to detect the load of the locker, thus informing about its accessibility and the possibility of accepting a new parcel.

Besides, <CIT> discloses a locker device, which displays status of a plurality of separated lockers. The locker devices comprises the plurality of separated lockers in various sizes that correspond to luggage of various shapes and sizes. Each locker has a combination of a rectangular locker casing for storing the load with a loader entrance that is equipped with a door that can be freely opened and closed by way of a hinge. The locker casing is provided with a locking mechanism and with a light source that selectively emits for example green or red light frontward and which is located in a part of the lock mechanism and works under the control of the control box of the locker device. The light source is used to display the usage status of the locker device. The door includes a handle for opening and closing the door which is a protrusion and which is fixed to the door in a location corresponding to the location of the light source in the lock mechanism. The handle is formed of a resin material having light transparency or light semi-transparency and inside of the handle there is a diffusion plate. The diffusion plate diffuses light from the light source. In addition, the door is formed with longitudinal slits which are light-transmitting and that optically communicate with the diffusion plate of the handle and therefore with the light source when the door is closed. Hence the door does not have electrical wiring and still is able to displays status of the locker. <CIT> discloses a door and locker unit according respectively to the preamble of claim <NUM> and to the preamble of claim <NUM>.

Also <CIT> discloses a locker device. It has a plurality of boxes with doors. An opening edge of each box body is provided with a door guide pin that comprises a light-emitting display portion on the front end. The guide pin goes through a hole in the door so its front end with the light-emitting display is visible in the closed state of the door.

The invention is defined by the independent claims <NUM>, <NUM> and its aim is the construction of a door for lockers or cabinets with limited access, in particular post office boxes, and a locker units with limited access, in particular post office boxes, which will ensure safe use of lockers or cabinets, and at the same time facilitate their use by informing the user about the various parameters of the box, including its position, accessibility or safe closure.

The invention relates to a door for lockers or cabinets with limited access, in particular post office boxes, comprising structural parts including a front panel and side walls. At least the side walls include holes for articulated connection of the door with a body of the locker. A selected structural part of the door, has at least a light beam transmitting surface fragment. The door includes the rear panel, wherein the front panel and the rear panel have through holes in which, between the front panel and the rear panel, there is at least one body with light beam transmitting faces.

Preferably, the light beam transmitting surface fragment is situated in the front panel.

Preferably, the light beam transmitting surface fragment has the shape of a circle.

It is also expedient for the light beam transmitting surface fragment to include a lens.

Suitably, the front panel and the rear panel have light beam transmitting surface fragments matched one to another.

The front panel and the rear panel have through holes in which the light beam transmitting faces of the body are seated.

It is particularly appropriate when the body has two sided external recesses forming walls on which the front panel and the rear panel are supported; wherein the size of the through holes in the front panel and the rear panel substantially corresponds to the outer dimension of the recess, and the outer walls of the recesses are preferably provided with sealing elements.

Preferably, the front wall of the body has a size substantially corresponding to the size of the selected edge of the front panel.

It is also expedient for the door to include a plurality of bodies assigned to each side of the front panel.

It is reasonable for the door for have a ground wire attached to an element selected from the front panel, the side walls, and the rear panel.

It is appropriate when the front panel and side walls are made of a single sheet of metal.

Alternatively, the front panel has side walls attached.

It is also reasonable when the door is provided with an eave extending beyond the plane of the front panel, having at least a light beam transmitting surface fragment.

The invention also relates to the locker unit with limited access, in particular the of post office boxes unit, comprising a body with the lockers, each having an assigned lighting element. Each locker has walls, including a rear wall and an articulated door with a catch that cooperates with the lock embedded in the body of the locker unit. The lighting element assigned to each locker is embedded in at least one wall of the body of the locker unit to which the door is adjacent, and the door has at least a light beam transmitting surface fragment, matched to the position of the lighting element; wherein preferably the light beam transmitting surface fragment is provided with a lens. The door includes a front panel and a rear panel, wherein the front panel and the rear panel have through holes in which a light transmitting front walls of a body located between the front panel and the rear panel are embedded.

It is also expedient for the front panel to have a light beam transmitting surface fragment, wherein preferably the light beam transmitting surface fragment is provided with a lens.

Equally preferably, the body has two sided external recesses forming walls on which the front panel and the rear panel are supported, wherein the size of the through holes in the front panel and in the rear panel substantially corresponds to the external dimension of the recess.

As used herein, a light transmitting surface fragment is understood, in accordance with the nomenclature adopted in the field of optics, as a transparent element, characterized by the physical property of transmitting light through this material, preferably without significant light dispersion.

As used herein, a lighting element is understood as any element capable of emitting light or displaying information. These can be, in particular, LEDs, displays or monitors of various sizes and configurations.

The basic advantage of the invention is to ensure safety when using a locker or cabinet, and at the same time to facilitate its use by providing information about various parameters of the locker, including its position in the lockers or cabinets unit, its accessibility, whether it is opened or securely closed. The use of a light beam transmitting surface fragment in the construction of the door and use of such doors in the lockers unit allows the user to receive a visible signal about the status of a given locker Importantly, the visible point of light can also provide information about the position of the opened locker in the locker unit, or about the correct closure of the locker, increasing the safety of the goods stored therein. The lighting element can be used to provide various information, including, for example, information on overloading the locker when storing items of larger dimensions or heavy weight.

An equally important advantage is that the door has the light beam transmitting surface fragment, and the lighting element, especially the LED diode, are embedded in the walls of the body of the locker unit. In typical solutions, the locker unit is connected to the power supply, ensuring the operation of the control and communication modules, including the locks of individual lockers. For this reason, supplying power to the lighting elements is very simple and does not require a battery power supply for the lighting elements. Lighting elements can also be connected to the control module just as easily.

The construction in which the door of the locker or cabinet has a light beam transmitting surface fragment is simple, and the manufacturing process is not complicated. In particular, the door, which is usually made of metal sheet can have cut outs of any shape, in which a lens or an element made of a light transmitting material can be embedded. The door can also have a selected structural element made entirely of light transmitting material, for example, the door eave can be transparent and can transmit light from the lighting element. The use of a circle shaped light beam transmitting surface fragment facilitates its implementation in the door construction and does not weaken its construction due to the lack of sharp edges.

The door construction and safety is improved by mounting the rear panel in the door. In this design, the front panel of the door and the rear panel of the door have light beam transmitting surface fragments, which are preferably matched to each other, which promotes the transmission of light from the lighting elements mounted in the body of the parcel locker. The best light transmission is achieved, however, if the body with light transmitting faces is placed between the front and rear panels. Then a light beam passing through the space between the front and rear panels is not dispersed. Additional benefits can be achieved by embedding the lenses in the faces of the body.

Ensuring a simple construction of locker door with a limited number of structural elements facilitates servicing and reduces the susceptibility to failure of locker or cabinet door elements. An equally important advantage of the solution is the assignment of a lighting element to each locker. In units of lockers or cabinets, there are many lockers of different sizes, often lockers of the same dimensions are located close to each other. This often causes a problem with identifying which locker the user should use. The use of lighting elements makes it much easier for the user to identify the correct locker or cabinet in the unit of lockers or cabinets. The correct locker or cabinet can be marked by the lighting element displaying a particular colour, or the user can follow the lighting elements leading to the selected locker. Another advantage of placing lighting elements in the door is the ability to display and inform about the failure of the device, its occupancy or the accessibility of individual lockers. Using a lighting element one can provide a lot of information to the users.

The invention has been presented in embodiments and in the drawing, in which:.

The door <NUM> was used in the limited access post office box unit <NUM>. The post office boxes unit <NUM> has a body <NUM>, and the walls and structural elements of which define the walls, including the rear wall of individual lockers <NUM>. The door <NUM> for articulated connection with the body <NUM> of the post office box unit <NUM> has holes <NUM> on the side walls <NUM> for articulated connection of the door <NUM>. The body <NUM> defines a single locker <NUM>. Each locker <NUM> has in the body <NUM> an assigned electrically actuated lock <NUM> and a single lighting element <NUM> in the form of a LED diode. They are embedded in one of the walls of the body <NUM> to which the door <NUM> adhere. In the body <NUM> there are embedded known communication and control units (not shown in the drawing), that allow remote opening of selected lockers <NUM> and control of the lighting element <NUM>. The position of the circular light beam transmitting surface fragment <NUM> on the front panel <NUM> of the door <NUM> is matched to the position of the lighting element <NUM>. Furthermore, the door <NUM> has a catch <NUM> designed to cooperate with a lock <NUM>.

In the embodiment, the door <NUM> (<FIG>) for post office boxes or cabinets includes the front panel <NUM>, the side walls <NUM> and the rear panel <NUM>. The front panel <NUM> and selected side walls <NUM> are made of a single sheet of metal. Also, the rear panel <NUM> is made of a single sheet of metal and has a lower side wall located under the lower side wall of the front panel <NUM> and extending into the eave <NUM>, which extends beyond the plane of the front panel <NUM>. The rear panel <NUM> is attached to the side walls <NUM>. In the embodiments, the rear panel <NUM> is screwed to the side walls, thanks to which, by unscrewing the bolts, easy access to the space behind the front panel <NUM> can be obtained. The rear panel <NUM> also has a screwed catch <NUM> to cooperate with the lock <NUM> located in the post office box unit <NUM>. In this embodiment, the holes <NUM> in the side walls <NUM> enabling the articulated connection of the door <NUM> with the body of the post office box unit <NUM> partially overlap the rear panel <NUM>. The door <NUM> is also provided with a ground wire <NUM> attached to the front panel <NUM> and led out beyond the side edge of the door <NUM>.

A body <NUM> is placed between the front panel <NUM> and the rear panel <NUM>. The body <NUM> can have any cross section, for example the shape of a circle, square or rectangle. In the presented embodiment, the body <NUM> is in the form of a sleeve (<FIG>) and is seated in through holes in the front panel <NUM> and rear panel <NUM>, which in shape correspond to the shape of the body <NUM>, so that the faces 15A of the body <NUM> pass through the planes formed by these panels or lie in these planes. The faces 15A of the body <NUM> are made of a transparent material so that in the front panel <NUM> and the rear panel <NUM> they form a light beam transmitting surface fragment <NUM>. The body <NUM> has wall forming recesses <NUM> on its outer surface near its ends. The walls of the recesses <NUM> support the front panel <NUM> and the rear panel <NUM>, and additionally the walls of the recesses <NUM> define a fragment of the body <NUM> that can be inserted into the front panel <NUM> and the rear panel <NUM>. Thus, it is particularly advantageous if the recess is made over the width of the body <NUM> corresponding to the thickness of the material forming the front panel <NUM> and the rear panel <NUM>. In this embodiment, it is particularly easy to obtain front walls <NUM> that lie in the planes of the front panel <NUM> and the rear panel <NUM>. The transparent faces 15A, i.e. front walls 15A conduct the light generated by the lighting element <NUM> located in the body <NUM> of the locker unit2. As in the previous embodiment, the position of the faces 15A of the body <NUM>, i.e. the circular light beam transmitting surface fragment <NUM> on the front panel <NUM> and the rear panel <NUM> of the door <NUM>, is matched to the position of the lighting element <NUM>.

In other embodiments, the front or rear front wall 15A of the body <NUM> can be provided with a lens, further promoting the light propagation. In particular, the lens can magnify the light generated inside the body even by a single LED. The use of the body <NUM> limits the light dispersion from the lighting element <NUM> placed in the body <NUM>. Thus, the body <NUM> forms an optical element transmitting light between the light source <NUM> and a selected point located on the door <NUM> of the locker unit <NUM>. As a result, the light generated by the lighting element <NUM> can be easily seen outside the locker unit.

As mentioned, the body <NUM> can be of any shape in a cross section. Thus the body <NUM> can also have star or rectangular shaped faces. In a further embodiment, the body <NUM> (<FIG>) has the form of a closed profile having a square cross section. Identically as in the previous embodiment, the body has external recesses <NUM> forming walls.

In other embodiments, the door of the cabinet or locker can have a front panel and the rear panel of the same size. With such a construction, the side walls can be separate structural elements, for example made of closed square shaped profiles, with which the front panel and rear panel will be connected.

Claim 1:
A door (<NUM>) for lockers or cabinets (<NUM>) with limited access, in particular post office boxes, comprising structural parts including a front panel (<NUM>) and side walls (<NUM>); wherein at least the side walls (<NUM>) include holes (<NUM>) for hinged connection of the door with a body of the locker, wherein a selected structural part of the door, has at least a light beam transmitting surface fragment (<NUM>), wherein the door includes a rear panel (<NUM>), wherein the front panel (<NUM>) and the rear panel (<NUM>) have through holes in which, characterized in that in the through holes between the front panel (<NUM>) and the rear panel (<NUM>), there is at least one body (<NUM>) with light beam transmitting faces (15A).