JP7591802B2 - Shelf lighting device - Google Patents

Description

The present invention relates to a power supply member for a shelf lighting device that is provided on a rack having multiple shelf posts, rod-shaped connecting members that are installed between the shelf posts, and a shelf base that is supported by the connecting members or the shelf posts, or a shelf base that is supported by an arm attached to the connecting members or the shelf posts, and that performs a wired power supply by supplying power to a lighting body that illuminates items placed on the shelf base.

Conventionally, spotlights have been the mainstream for lighting shelves and cases for displaying items, but they have the problem of not being able to brightly illuminate the entire shelf. In addition, instead of the spotlights, lighting fixtures such as fluorescent lamps that run on low voltages have been used to light the entire shelf, but the lighting fixtures themselves are large, which has the problem of narrowing the display area and making them conspicuous. In particular, they are unsuitable for open-type display shelves as well as display shelves such as glass showcases where aesthetics are important.
In order to solve such problems, the inventor of the present invention proposed a shelf lighting device that is installed on a shelf or case and can turn on lighting elements such as LEDs simply by placing it on a shelf stand installation part that supports the shelf stand (see Patent Documents 1 and 2).
This type of shelf lighting device (hereinafter referred to as a "wireless" shelf lighting device) uses the arms that support the shelf posts and shelf base that make up the shelf or case as their conductive parts, eliminating the need to wire the individual lighting elements, resulting in a sleek overall design. In addition, it is possible to simply assemble the shelf or case and the lighting elements can be made to emit light without the need for wiring, which has the advantage of significantly reducing the burden of installing an illuminated shelf.

JP 2012-134040 A JP 2012-40334 A

Therefore, the shelf lighting device described in the above document has been well received at various exhibitions and business meetings as something that changes the concept of conventional display shelves and showcases. Furthermore, since the left-right and front-back positions of the power supply terminals can be adjusted, there is also the advantage that the shelf lighting device can be installed even if the spacing between the shelf posts or the position of the shelf support brackets that supply power are different.
On the other hand, as the range of application of the shelf lighting device proposed by the applicant of the present application expands, there is a growing demand to install unwired lighting units that illuminate items placed on a shelf stand even in metal racks having two or four shelf posts, rod-shaped connecting members installed between the shelf posts, and a shelf stand supported by arms attached to the connecting members or the shelf posts, and further to be able to install unwired lighting units using existing racks almost as they are.

An example of a rack is shown in Fig. 18 and Fig. 19. The rack in Fig. 18 has two shelf columns 7 erected on the floor surface and a rod-shaped connecting member 9 that is installed between the two shelf columns 7, 7 and connects the shelf columns 7, 7. The base of an arm 73 is inserted into and supported by an engagement hole 71 in the shelf column 7. A shelf stand T is placed on the two arms 73, and items are placed on the shelf stand T for display, etc. The rack in Fig. 19 has four shelf columns 7 erected on the floor surface and a rod-shaped connecting member 9 that is installed between the two shelf columns 7, 7 and connects the shelf columns 7, 7. A shelf stand T is placed on the connecting member 9, and items are placed on the shelf stand T for display, etc.
18 and 19, the connecting member 9 and shelf column 7 may be connected using fastening means such as bolts and nuts, but by forming multiple engagement holes 71' on the side of the shelf column 7 and forming hooks on both ends of the connecting member 9 that engage with these engagement holes 71', the attachment position of the connecting member 9 to the shelf column 7 can be easily changed or increased, which is convenient. Among racks such as the one shown in Figure 19, there are also racks that support a triangular shelf stand with three shelf columns and racks that support a pentagonal shelf stand with five shelf columns.
However, when attempting to install a conventional unwired shelf lighting device as described in the above-mentioned document on such a rack, if a power source is connected to one shelf post (conductive part), the positive and negative terminals of the power source will be short-circuited via the metal shelf post and connecting member, resulting in the problem that the lighting body cannot be installed without wiring as with conventional shelf lighting devices.
To solve such problems, the present invention enables a shelf lighting device to be installed on a metal rack without wiring, and aims to provide a power supply member for a shelf lighting device that can supply power to the lighting body without wiring by simply making simple improvements while using the existing rack almost as it is.

To meet the above demands, the inventors of the present invention have discovered that a wire-free shelf lighting device can be provided by interposing a power supply member equipped with an insulating section for providing insulation or a power distribution section for distributing power between the shelf post and the connecting member. They have also discovered that a wire-free shelf lighting device can be provided simply by replacing some or all of the connecting members that make up the rack with power supply members of a specified configuration.

That is, the power supply member according to claim 1 is provided on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, and a shelf base supported by the connecting member or the shelf posts , or on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, an arm attached to the connecting member or the shelf posts, and a shelf base supported by the arm , and is a power supply member for a shelf lighting device which supplies power to an illumination body which illuminates an item placed on the shelf base, thereby performing wired power supply, the power supply member comprising: a rod-shaped first member having conductivity and a rod-shaped second member having conductivity which are detachable from the shelf posts, one end of which is connected to the first member and the other end of which is connected to the second member, The electrical wiring diagram includes a power distribution member that is conductive and enables power distribution to the conductive portion of the shelf post, and an insulating member to which the first member is connected at one end and the second member is connected at the other end, insulating the conductive portion of the first member from the conductive portion of the second member and insulating the conductive portion of the shelf post, wherein by connecting the first member and the second member via the power distribution member, a separate conductive connecting member that can be replaced with the connecting member is formed, and by connecting the first member and the second member via the insulating member, a separate insulating connecting member that can be replaced with the connecting member is formed, and a combination of the separate conductive connecting member and the separate insulating connecting member supplies power to the lighting body .

In the present invention, the "conductive portion" includes cases where the connecting member or the shelf column is made of a conductive metal or the like and the connecting member or the shelf column itself constitutes the "conductive portion," as well as cases where a conductive member is provided inside the connecting member or the shelf column, where a conductive coating is formed on the surface of the non-conductive connecting member or the shelf column, and where a fixture such as a lighting device attached to the connecting member or the shelf column functions as the conductive portion.

As described in claim 2, a power supply member for a shelf lighting device is provided on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, and a shelf base supported by the connecting member or the shelf posts, or on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, an arm attached to the connecting member or the shelf posts, and a shelf base supported by the arm, and supplies power to an illumination body that illuminates an item placed on the shelf base, thereby performing a wired power supply, the power supply member having a conductive power distribution member or an insulating member detachably attached to the tip of the shelf posts, and the shelf posts and the conductive insulating member connected to the shelf posts via the power distribution member. The shelf post may be electrically connected to another shelf post and/or the conductive portion of the conductive connecting member to enable power distribution from the shelf post to the conductive portion of the other conductive shelf post and/or the conductive portion of the connecting member, or the shelf post may be insulated from the conductive portion of the other shelf post and/or the conductive portion of the conductive connecting member via the insulating member to insulate the conductive portion of the other shelf post and/or the conductive portion of the connecting member, thereby supplying power to the lighting body by a combination of a conductive connection between the shelf post, the other shelf post and/or the connecting member via the power distribution member and an insulating connection between the shelf post, the other shelf post and/or the connecting member via the insulating member.

As described in claim 3, the power distribution member has an insulating body, conductive portions provided on both sides of the body, and a power distribution portion that guides the positive and negative poles of a conductor formed in the body and connected to the power source to each of the conductive portions, and the conductive portions may be configured to contact the conductive portions of the first member or the second member, respectively, when the first member or the second member is connected by the power distribution member.

As described in claim 4, when the first member or the second member is formed in a hollow shape, the insulating member and the power distribution member may have a main body formed of an insulating material and protrusions provided to protrude from both sides of the main body and inserted into a hollow hole of the first member or the second member. In this case, as described in claim 5, when the first member or the second member is formed in a hollow shape and the conductive portion is formed in the hollow hole, the protrusions may be formed as the conductive portion of the first member or the second member, and may be formed to contact the conductive portion in the hollow hole.

In addition, a tip member having a conductive portion and attached to the tip of the shelf post may be formed as the power distribution member or the insulating member.
By using the tip member attached to the tip of the shelf column as a power supply member, the rigidity of the connecting member can be maintained, which is particularly advantageous in shelves on which heavy objects may be placed.
In this case, among a plurality of shelf units each having the shelf posts and the connecting members, a first electrode may be provided on the tip member of the shelf post of one of the shelf units, and a second electrode that engages with the first electrode may be provided on the tip member of the shelf post of the other shelf unit, and the shelf units may be connected to form a shelf. The first electrode may be, for example, a recessed electrode, and the second electrode may be, for example, a protruding electrode, or the first electrode and the second electrode may be formed by magnets.
In this way, it becomes easy to apply a wire-free shelf lighting device to a shelf constructed by stacking a plurality of shelf units, etc. Also, by combining the shelf units, a shelf of any shape equipped with a wire-free shelf lighting device can be formed.

As another embodiment of the power distribution unit, as described in claim 6 , the power distribution member may be composed of an electrode formed on the connecting member, the shelf column, the first member or the second member, and an electrode may be formed on a shelf stand placed on the connecting member, the shelf column, the first member or the second member when connected to the power source and comes into contact with the electrode.

Since the present invention is configured as described above, the shelf post and the connecting member can be switched between an insulated state and a conductive state by appropriately selecting the power distribution member or insulating member. Therefore, like the conventional shelf lighting device, the power supplied from the shelf post can be passed through a specified arm, connecting member or shelf post to light up the lighting body provided on the arm, connecting member or shelf post.
Moreover, by simply replacing the shelf posts and connecting members with insulating members that connect a first member and a second member, the spaces between the shelf posts can be insulated. Furthermore, by simply replacing the shelf posts and connecting members with power distribution members that connect a first member and a second member, the positive and negative power distributed from the power distribution members to the first and second members on the left and right can be supplied to the lighting body from the power supply members via the shelf posts and arms without wiring.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
Figures 1 and 2 are explanatory diagrams of the configuration of the power supply member for the shelf lighting device of the present invention, where Figure 1(a) is an oblique view of an insulating member that constitutes the power supply member, (b) is an oblique view of a power distribution member, and (c) is a longitudinal cross-sectional view of the power distribution member. Figure 2(a) is an exploded oblique view of the power supply member, (b) is an assembled oblique view of the power supply member equipped with a power distribution member, and (c) is an assembled oblique view of the power supply member equipped with an insulating member. Figure 3 is an oblique view of a rack showing the state in which the connecting member of the rack has been replaced with a power supply member.
In the present invention, two types of power supply members 1, 1' are prepared, and by replacing the rack connecting member 9 (see FIG. 8) with the power supply members 1, 1', it is possible to maintain an insulated state between the shelf posts 7, 7 and to supply power to lighting objects S such as LEDs and fluorescent lamps. One of the power supply members 1 supplies power to the shelf posts 7, 7 while maintaining an insulated state between the shelf posts 7, 7, and is composed of a power distribution member 3 and a first member 4 and a second member 5 made of metal that are connected to both sides of the power distribution member 3. The other power supply member 1' has an insulating member 2 and a first member 4 and a second member 5 that are connected to both sides of the insulating member 2 in order to maintain an insulated state between the shelf posts 7, 7.

[Insulating and power distribution components]
1A, the insulating member 2 has an insulating main body 21 made of resin or the like, and protrusions 22 made of metal or the like protruding from both sides of the main body 21. The outer shape of the main body 21 is formed to be the same as that of the first member 4 and the second member 5, and the protrusions 22 are formed in a shape that can be fitted into the through holes 41, 51 of the hollow first member 4 and the second member 5. In the illustrated example, the protrusions 22 are formed in a tapered shape so that they can be easily fitted into the through holes 41, 51, but the shape is not particularly limited as long as they can be fitted into the through holes 41, 51.
The basic configuration of the power distribution member 3 is the same as that of the insulating member 2, and includes an insulating main body 31 formed of resin or the like, and conductive protrusions 32 formed of metal or the like protruding from both sides of the main body 31. The outer shapes of the main body 31 and the protrusions 32 are the same as the main body 21 and the protrusions 22 of the insulating member 2. The difference from the insulating member 2 is that a through-hole-shaped power distribution section 33 is formed in the center of the main body 31, and among the conductors 33a inserted into the power distribution section 33, the positive conductor 33a is connected to one protrusion 32, and the negative conductor 33a is connected to the other protrusion 32. This makes it possible to distribute power supplied from a power source (not shown) to the first member 4 and the second member 5.

[First member and second member]
The first member 4 and the second member 5 constituting the power supply members 1, 1' are formed in a cylindrical rod shape having through holes 41, 51. At one end of each member, a hook 42, 52 is formed to be fitted into and engaged with an engagement hole 71 of the shelf post 7. The first member 4 and the second member 5 may be formed of a conductive material such as metal, so that the entire first member 4 and the second member 5 are conductive parts, but the first member 4 and the second member 5 may also be formed of a non-conductive material such as resin, and a conductive layer may be formed on the inner surface of the through holes 41, 51.

[First embodiment]
[Rack configuration]
FIG. 3 is an exploded perspective view of the rack of FIG. 18, which enables a wire-free power supply using the power supply members 1, 1' having the above-mentioned configuration.
The shelf posts 7, legs 72 and arms 73 are used as they are in the existing rack, and the two upper and lower connecting members 9 connecting the shelf posts 7, 7 are replaced with the power supply member 1 or power supply member 1'. There is only one power supply member 1 with the power distribution member 3, and the lower connecting member 9 is replaced with this power supply member 1 as shown in the figure.

FIG. 4 is an assembled perspective view of the rack of FIG.
4, in this rack, the two upper and lower connecting members 9 connecting the shelf posts 7, 7 are replaced with a power supply member 1 for power distribution and a power supply member 1' for insulation. Power is distributed from the power supply member 1 for power distribution to the left and right shelf posts 7, 7, and is supplied from the shelf posts 7, 7 via arms 73 to lighting bodies S equipped with LEDs or fluorescent lamps, etc., to light up the lighting bodies S.

5 is a perspective view for explaining an example in which the present invention is applied to a rack in which another rack is added to the rack of the first embodiment to expand the width in the Y direction. This rack has three shelf posts 7, each of which supports an arm 73, and the lighting body S is bridged between the adjacent arms 73, 73.
In this rack, of the two conductive members connecting the shelf column 7 of the rack of the first embodiment to the shelf column 7 of an additional rack, the upper connecting member 9 is replaced with an insulating power supply member 1' of the present invention, and the lower connecting actuator 9 is replaced with a power supply member 1 for power distribution.
In the rack of Figure 5, power is distributed from the power supply member 1 for power distribution to the left and right first members 4 and second members 5, and is supplied to each of the lighting objects S of the left and right racks via the shelf posts 7, arms 73, and connecting members 9, thereby lighting up the lighting objects S.

[Second embodiment]
[Power supply components]
Fig. 6 is a perspective view showing a second embodiment of the power supply members 1, 1' applied to the rack of Fig. 19. In this embodiment, the surfaces of the first and second metallic members 4, 5 are insulated with resin, paint, or the like, and electrodes 43, 53 connected to the first and second members 4, 5 are provided and exposed on the surfaces of the insulating coating. The lighting body S is provided with electrodes (not shown) that can come into contact with the electrodes 43, 53, so that power distributed from the power supply member 1 for power distribution can be supplied to the lighting body S via the electrodes 43, 53.
The lighting body S is attached to the first member 4 and the second member 5 of the power supply members 1, 1' across the insulating member 2 or the power distribution member 3, and various attachment forms can be selected. For example, the lighting body S may be attached to the first member 4 and the second member 5 with bolts and nuts, or may be attached to the first member 4 and the second member 5 with magnets or the like so as to be easily detachable from the first member 4 and the second member 5.

[Rack configuration]
FIG. 7 is an exploded perspective view of the rack of FIG. 19, which enables a wire-free power supply using the power supply members 1, 1' having the above-mentioned configuration.
The shelf columns 7 of an existing rack are used, and a total of 12 connecting members 9, three on each side in the depth direction (X direction) and three on each side in the width direction (Y direction), are replaced with power supply members 1 for power distribution or power supply members 1' for insulation. There is only one power supply member 1 for power distribution having a power distribution member 3, and the connecting member 9 in the width direction at the bottom of the rear row is replaced with a power supply member 1 for power distribution as shown in the figure.
A tip member 8 is attached to the top of the shelf column 7. The tip member 8 has a protrusion that can be inserted into the through hole of the shelf column 7, and an engagement hole 81 is formed on the side surface thereof with which the hooks 42, 52 of the first member 4 and the second member 5 of the power supply members 1, 1' can be engaged.
The tip member 8 and the shelf post 7 are formed of a conductive material such as metal, or if they are formed of a non-conductive material such as resin, a conductive material is provided inside the through hole.

FIG. 8 is an assembled perspective view of the rack of FIG.
In the rack shown in Fig. 8, all of the connecting members 9 (see Fig. 19) are replaced with the power supply members 1, 1' of the present invention. Each of the power supply members 1, 1' is fitted with an illumination unit S equipped with an LED or a fluorescent lamp.
FIG. 9 is a perspective view showing the structure of a rack in the case where the lighting unit S is provided only in the width direction (Y direction).
In this case, only the connecting members 9 in the width direction (Y direction) are replaced with the power supply members 1, 1'. The connecting members 9 in the depth direction (X direction) remain as they are. If the connecting members 9 are made of a conductive material such as metal, power is supplied from the power supply member 1' to the shelf column 7 via the connecting members 9, and if the connecting members 9 are made of a non-conductive material such as resin, a conductive material is provided in the through-hole of the connecting members 9 to light the lighting body S. In the illustrated example, the three connecting members 9 on the left and right in the depth direction (X direction) are left as they are, but it is sufficient to have at least one connecting member 9 on each side in the depth direction (X direction), and the rest may be replaced with an insulating power supply member 1' (or a power supply member 1 for power distribution).

FIG. 10 is a perspective view of the rack shown in FIG. 7 when another rack is added to expand the width in the Y direction.
This rack has six shelf posts 7, and in the illustrated example, lighting units S (four in total) are installed only at the front and rear of the middle shelf and at the front and rear of the upper shelf in the width direction (Y direction).
In such a rack, the four connecting members 9 for mounting the lighting unit S are replaced with insulating power supply members 1'. In addition, of the four connecting members 9 at the bottom, two are replaced with power supply members 1 for power distribution, and the rest are replaced with insulating power supply members 1'.
Furthermore, for the connecting members 9 in the depth direction (X direction), at least one each of the left, right and center connecting members 9 is replaced with an insulating power supply member 1' (or a power supply member 1 for power distribution).

[Second embodiment]
FIG. 11 is a perspective view of a rack showing a power supply member according to a second embodiment of the present invention.
In this embodiment, an electrode 3' is formed on the first member 4 and the second member 5 of an insulating power supply member 1', and an electrode Ta in contact with the electrode 3' is provided on a shelf T placed on the first member 4 and the second member 5. An AC adaptor Tb is attached to the underside of the shelf T, and a conductor 33a' extending from this AC adaptor Tb extends to the electrode Ta. In this embodiment, the insulating power supply member 1' on which the electrode 3' is formed functions as a power supply unit for distributing power.

[Third embodiment]
12 to 14 relate to a power supply member according to a third embodiment of the present invention, FIG. 12 is an exploded perspective view with a portion cut away to explain the configuration of the power supply member of this third embodiment, FIG. 13 is a cross-sectional view of the power supply member, and FIG. 14 is a perspective view showing an example of a rack to which the power supply member of this embodiment is applied.
In addition, since the power supply member of this embodiment is basically configured as the insulating member 2 shown in FIG. 1, the same members and parts as the insulating member 2 of FIG. 1 are denoted by the same reference numerals.

In this embodiment, power supply member 1" has insulating protrusions 22 formed on multiple faces of insulating main body 21 formed in a cubic shape. The number of protrusions 22 formed on main body 21 depends on the number of shelf posts 7 and connecting members 9 to be connected. In the example shown, four connecting members 9 extending in four directions are connected to the upper and lower shelf posts 7, 7, so protrusions 22 are provided on all six faces of main body 21, but in a hexahedral main body 21 as shown, the number can be one to six, and in a polyhedral main body 21 having more than six protrusions, the number can also be more than six.
A through hole is formed in the projection 22, and a conductive core material 32' made of metal is provided so as to pass through this through hole.
The core material 32' through which one protrusion 22 is inserted is formed to be integral with or in contact with the core material 32' through which the other protrusion 22 is inserted, so that when any one of the protrusions 22 is fitted into the through hole 7a of the shelf post 7 or the through hole 9a of the connecting member 9, insulation or conduction can be achieved between the shelf posts 7, 7, between the connecting members 9, 9, or between the shelf post 7 and the connecting member 9.

In other words, because the main body 21 and the protrusion 22 are made of insulating material, when the protrusion 22 is inserted into the through hole 9a of the connecting member 9 or the through hole 7a of the shelf column 7, the connecting member 9 and the shelf column 7 are kept in an insulated state. To electrically connect the connecting member 9 and the shelf column 7, a cap-shaped contact terminal 34 made of metal or the like is attached by a bolt 34a or the like to the protrusion 22 that is inserted into the through hole 9a of the connecting member 9 and the through hole 7a of the shelf column 7 to be electrically connected.

The outer periphery of the contact terminal 34 comes into contact with the inner surface of the through hole 9a of the connecting member 9, which is made of a conductive material, and the inner surface of the through hole 7a of the shelf post 7, thereby electrically connecting the connecting member 9 and the shelf post 7 via the core material 32'.
In this embodiment, the power supply member 1 ″ is attached to the tip of the shelf column 7 and constitutes a “tip member” that connects the upper and lower shelf columns 7 , 7 to the left and right connecting members 9 .

Figure 14 shows an example of applying the power supply member 1" of this embodiment to the rack shown in Figure 5, with the power supply member 1" attached to both the top and bottom ends of the three shelf columns 7. In a rack like that of Figure 14, two bifurcated power supply members 1A and 1B with two protrusions 22 in orthogonal directions are prepared so that they can be attached to the top and bottom ends of the shelf columns 7 at both ends, and three T-shaped bifurcated power supply members 1A' and 1B' with three protrusions 22 in three directions are prepared so that they can be attached to both the top and bottom ends of the middle shelf column 7.

In this embodiment, the three power supply members 1B, 1B' attached to the upper end of each shelf column 7 are insulating members with no contact terminals 34 attached to any of the protrusions 22, and the three power supply members 1A, 1A' attached to the lower end of each shelf column 7 are conductive members with contact terminals 34 attached to all of the protrusions 22.
In this way, by connecting one of the shelf pillars 7, 7 at both ends to the positive terminal of a power source and the other to the negative terminal, power is supplied to the lighting body S mounted on each arm 73, and the lighting body S is turned on.
According to the power supply members 1A, 1A', 1B, and 1B' of this embodiment, the connecting members 9 connecting the shelf posts 7, 7 can be used as they are, which has the advantage that the strength of the rack can be maintained.
In this embodiment as well, the power supply members 1A, 1A', 1B, and 1B' are attached to the tip of the shelf post 7 to form "tip members" that connect the shelf post 7 to the left and right connecting members 9.

[Fourth embodiment]
FIG. 15 is a partial cross-sectional view of a power supply member according to a fourth embodiment of the present invention.
In this embodiment, the power supply member 1" of the third embodiment is used, and the lighting body S is inserted inside the cylindrical connecting member 9, and the terminals Sb, Sb at both ends are abutted against the tip of the core material 32' of the power supply terminal 1". Various known abutment configurations can be mentioned, including a configuration (as shown in the figure) in which the protruding terminals Sb, Sb are provided with spring properties and a concave engaging portion with which the terminals Sb, Sb can engage is formed at the tip of the core material 32'.
The connecting member 9 has an opening 9b formed therein so that the illumination light emitted from the light emitting portion Sa of the illumination body S can be emitted to the outside.
According to this embodiment, the lighting body S can be made invisible from the outside, and there is an advantage that shelf lighting can be performed without wiring on a shelf having the same appearance as a conventional shelf.

[Modification of the fifth embodiment]
FIG. 16 is a partial cross-sectional view of a power supply member according to a fifth embodiment, and FIG. 17 is a front view showing an example of a shelf using the power supply member of this embodiment.
The power supply member of this fifth embodiment is adapted to be applied to a shelf as shown in FIG. 17, which is configured by stacking multiple box-shaped shelf units U1, U2, U3 ... each formed from a shelf post 7 and a connecting member 9, and the power supply member 1'' of the third or fourth embodiment can be used.

In this embodiment, as shown in FIG. 17, in the lower shelf unit U2, an engagement hole 21a is formed in the upper end surface of the main body 21 which is attached to the upper end of the shelf column 7, and the tip of the core material 32' is exposed at the bottom of this engagement hole 21a.
On the other hand, in the upper shelf unit U1, a conductive bolt 21b serving as a protrusion is attached to the lower end surface of the main body 21 attached to the lower end of the shelf post 7. The bolt 21b is screwed into a spiral hole formed in a core material 32' of the main body 21 on the shelf unit U1 side. Therefore, when the shelf unit U1 is placed on the shelf unit U2, the tip of the bolt 21b is inserted into the engagement hole 21a and the tip of the bolt 21b comes into contact with the core material 32' exposed at the bottom of the engagement hole 21a, making it possible to supply power to the lighting body S provided on the connecting member 9 of the shelf units U1 and U2 via the power supply member 1" attached to the upper and lower shelf posts 7.

Of course, the relationship between the protrusion bolt 21b and the engagement hole 21a may be reversed, and the engagement hole 21a may be formed in the main body 21 on the upper shelf unit U1 side, and the protrusion bolt 21b may be attached to the main body 21 on the lower shelf unit U2 side.
Furthermore, the protrusion is not limited to bolt 21b, but may be an extension of core material 32' protruding from the lower end surface or upper end surface of main body 21. However, bolt 21b is convenient in that when not in use, it can be screwed into main body 21 and buried in the lower end surface or upper end surface of main body 21, or removed.

Note that while Figure 7 shows an example of a vertical row of three shelves made up of shelf units U1, U2, and U3, the present invention can also be applied to shelves with two or more vertical rows. In addition, by arranging multiple vertical rows of shelves made up of multiple shelf units U1, U2, U3, etc. in the horizontal direction, it is easy to configure multiple vertical rows and rows of shelves equipped with non-wired shelf lighting devices.

Since the present invention is configured as described above, even in a rack in which the shelf stand T is supported by multiple shelf posts 7, it is possible to install a non-wired shelf lighting device simply by replacing the connecting members 9 with the power supply members 1, 1' as appropriate, or by attaching the power supply members 1A, 1A', 1B, 1B' to both ends of the shelf posts 7. Furthermore, even if the number of shelf posts 7 is increased, it is possible to use the existing rack almost as is by simply replacing the connecting members 9 with the power supply members 1, 1' or by attaching the power supply members 1A, 1A', 1B, 1B' to both ends of the shelf posts 7.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above description.
For example, in a portion where the lighting body S is not installed, it is possible to use another member having insulating properties, such as a resin connecting member, instead of using the power supply member 1 having the above-mentioned configuration.
Moreover, the power supply members 1, 1', 1A, 1A', 1B, and 1B' shown in the first to fifth embodiments may be used in appropriate combination.
Furthermore, in the fifth embodiment, the bolt 21b is taken as an example of the first electrode, and the second electrode is described as the engagement hole 21a that engages with it, but the protruding electrode is not limited to the bolt 21b, and may be a pin. Also, the first electrode and the second electrode may be electrodes of other shapes, such as magnets, as long as they are capable of engaging with each other and conducting electricity.

The shelf lighting device of the present invention can be widely applied to racks for displaying items.

FIG. 1(a) is a perspective view of an insulating member constituting the power supply member for the shelf lighting device of the present invention, FIG. 1(b) is a perspective view of a power distribution member, and FIG. 1(c) is a longitudinal sectional view of the power distribution member. 1A is an assembled perspective view of a power supply member including a power distribution member according to a first embodiment of the present invention, and FIG. 1B is an assembled perspective view of a power supply member including an insulating member. FIG. 20 is an exploded perspective view of a rack showing an example in which a power supply member of the present invention is applied to the rack of FIG. 18. FIG. 4 is an assembled perspective view of the rack of FIG. 3 . 11 is a perspective view of a rack for explaining a case in which the present invention is applied to a rack with an expanded width in the Y direction. FIG. 11A is an assembled perspective view of a power supply member including a power distribution member according to a second embodiment of the present invention, and FIG. 11B is an assembled perspective view of a power supply member including an insulating member. 13 is an exploded perspective view of the rack, showing a state in which a connecting member of the rack has been replaced with a power supply member. FIG. FIG. 8 is an assembled perspective view of the rack of FIG. 7. 13 is a perspective view showing the structure of a rack when the lighting body S is provided only in the width direction (Y direction). FIG. 11 is a perspective view of a rack for explaining a case in which the present invention is applied to a rack with an expanded width in the Y direction. FIG. FIG. 11 is a perspective view of a rack showing another embodiment of a power supply member of the present invention. FIG. 11 is an exploded perspective view, with a part cut away, illustrating the configuration of a power supply member according to a third embodiment of the present invention. FIG. 13 is a cross-sectional view of the power supply member of FIG. 12 according to a third embodiment of the present invention. FIG. 11 is a perspective view showing an example of a rack to which a power supply member according to a third embodiment of the present invention is applied. FIG. 10 is a partial cross-sectional view of a power supply member according to a fourth embodiment of the present invention. FIG. 13 is a partial cross-sectional view of a power supply member according to a fifth embodiment of the present invention. FIG. 13 is a front view showing an example of a shelf using the power supply member of the fifth embodiment. FIG. 1 is a perspective view showing an example of a conventional rack. FIG. 11 is a perspective view showing another example of a conventional rack.

1, 1' Power supply member 1A, 1A', 1B, 1B' Power supply member 2 Insulating member 21 Main body 21a Engagement hole 21b Bolt (protrusion)
22 Protrusion 3 Power distribution member 3' Electrode (power distribution section)
31 Main body 32 Protrusion 33 Power distribution section 33a, 33a' Conductor 4 First member 41 Through hole 42 Hook 43 Electrode 5 Second member 51 Through hole 52 Hook 53 Electrode 6
7 shelf posts 71, 71' engagement hole 72 leg 73 arm 8 tip member 81 engagement hole 9 connecting member S lighting body S lighting body Sa light emitting part Sb terminal T shelf stand Ta electrode Tb AC adapter

Claims (6)

A power supply member for a shelf lighting device that is provided on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, and a shelf base supported by the connecting member or the shelf posts, or on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, an arm attached to the connecting member or the shelf posts, and a shelf base supported by the arm, and that supplies power to an illumination body that illuminates an item placed on the shelf base, thereby performing wireless power supply,
a conductive rod-like first member and a conductive rod-like second member which are detachable from the shelf column; a power distribution member having one end connected to the first member and the other end connected to the second member, which enables power distribution to the conductive portion of the shelf column by conducting a conductive portion of the first member and a conductive portion of the second member; an insulating member having one end connected to the first member and the other end connected to the second member, which insulates the conductive portion of the first member from the conductive portion of the second member and insulates the conductive portion of the shelf column;
having
By connecting the first member and the second member via the current distribution member, another conductive connecting member that can be replaced with the connecting member is formed;
By connecting the first member and the second member via the insulating member,
forming another insulating connecting member replaceable with the connecting member;
supplying power to the lighting body through a combination of the conductive separate connecting member and the insulating separate connecting member;
A power supply member for a shelf lighting device. A power supply member for a shelf lighting device that is provided on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, and a shelf base supported by the connecting member or the shelf posts, or on a rack having a plurality of shelf posts, a rod-shaped connecting member installed between the shelf posts, an arm attached to the connecting member or the shelf posts, and a shelf base supported by the arm, and that supplies power to an illumination body that illuminates an item placed on the shelf base, thereby performing wireless power supply,
The shelf has a conductive power distribution member or an insulating member that can be detachably attached to the tip of the shelf column,
The shelf column is electrically connected to the shelf column via the power distribution member, and/or the conductive portion of the conductive connecting member is electrically connected to the shelf column, thereby enabling power distribution from the shelf column to the conductive portion of the conductive shelf column and/or the conductive portion of the connecting member; or the shelf column is insulated from the conductive portion of the other shelf column and/or the conductive portion of the conductive connecting member via the insulating member, thereby insulating the conductive portion of the other shelf column and/or the conductive portion of the connecting member;
supplying power to the lighting body by a combination of conductive connections at the shelf post, the other shelf post and/or the connecting member via the power distribution member and insulating connections at the shelf post, the other shelf post and/or the connecting member via the insulating member;
A power supply member for a shelf lighting device. The power distribution member of the shelf lighting device described in claim 1, characterized in that the power distribution member has an insulating main body, conductive portions provided on both sides of the main body, and a power distribution portion that guides the positive and negative poles of a conductor formed in the main body and connected to the power source to each of the conductive portions, and the conductive portions are configured to contact the conductive portions of the first member or the second member, respectively, when the first member or the second member is connected by the power distribution member. The power supply member of the shelf lighting device described in claim 1, characterized in that when the first member or the second member is formed hollow, the insulating member and the power distribution member have a main body formed of an insulating material and protrusions protruding from both sides of the main body and inserted into the hollow holes of the first member or the second member. A power supply member of a shelf lighting device as described in claim 4, characterized in that when the first member or the second member is formed hollow and the conductive portion is formed within the hollow hole, the protrusion is formed as a conductive portion of the first member or the second member, and the protrusion is formed so as to contact the conductive portion within the hollow hole. The power supply member of the shelf lighting device described in claim 1, characterized in that the power distribution member is composed of electrodes formed on the connecting member, the shelf column, the first member or the second member, and an electrode connected to the power source and in contact with the electrode is formed on a shelf base placed on the connecting member, the shelf column, the first member or the second member.

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