JP2013042787A - Merchandise display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a merchandise display device constructed to be capable of automatically displaying an article on display in a predetermined and desired position even after putting it back in a careless way.SOLUTION: An installing means (1) which is fixedly mounted and a holding means (3) which holds a commercial product from behind are connected with a rope. A socket means (7) and a plug means (8) which can be mutually inserted and removed are opposed to each other in a protruding condition. A receiving hole (15) in the socket means (7) and a protrusion (19) of the plug means (8) are formed into a tapered shape so that they may be mutually inserted and removed. The receiving hole (15) and the protrusion (19) are respectively provided with fitting peripheral surfaces (32 and 33) whose cross-sections are noncircular so that they may be fitted when the socket means (7) and plug means (8) have been aligned in a predetermined position around the axis. A position control means (34) is provided to turn the relative position between the socket means (7) and the plug means (8) toward a predetermined position (P1) when the plug means (8) is inserted into the socket means (7) in a state where it is deviated from the predetermined position (P1) around the axis.

Description

The present invention relates to a product display apparatus for displaying products such as digital cameras, smartphones, tablet terminal devices, and other portable terminal devices in stores such as retail stores.

Conventionally, for example, products such as digital cameras and smartphones have been exhibited so that customers can examine the products while touching them at the store.

When a product is displayed, it is necessary to display it in a state that it is held in a good-looking manner, and it is necessary for the customer to be able to examine it freely by hand, but anti-theft measures are required so that it cannot be taken away by shoplifting.

For this reason, conventionally, products are displayed in a state where they are tethered by an anti-theft rope such as a wire, and for the products that require a power source, the rope is also used by a power cable or the like.

JP 2001-312779 A Utility Model Registration No. 3073865

The apparatus for displaying the product as described above includes an installation unit fixedly installed on a tabletop or a wall surface in a store, a holding unit that holds the product from the back, and a rope that anchors the holding unit to the installation unit. It is preferable that the display unit is configured to be displayed by detachably mounting the holding unit on the installation unit.

According to this, the product can be displayed with good appearance by mounting the holding means on the installation means, and the customer can pick up the product by pulling the holding means away from the installation means. And since the holding | maintenance means is anchored to the installation means by the rope, it can prevent that a customer takes away goods without permission.

However, when returning the product picked up by the customer to the original position, if the holding means cannot be mounted in the desired position on the installation means in a desired posture, the display posture of the product will be unsatisfactory. There is a problem that it is necessary to arrange the display posture of the product, forcing a clerk to perform complicated work.

In this regard, if a permanent magnet for positioning is provided between the holding means and the installation means, the above problem can be solved. However, in products targeting electronic devices such as digital cameras and smartphones, the magnet is the cause of trouble. Therefore, it is not preferable. In addition, when the holding means is not returned to the position where the magnet works, there is a problem that the holding means cannot be mounted on the installation means and falls off from the installation means.

The present invention can be automatically mounted in a desired position at a predetermined position even when the holding means is returned to the installation means without making any use of magnets and having a mechanical structure exclusively. Therefore, it is an object of the present invention to provide a merchandise display apparatus configured so that the holding means is not dropped from the installation means even if it is not mounted properly.

Therefore, the present invention is configured as a means comprising a fixed installation means, a holding means for holding a product from the back, and a rope mechanism having a rope for tethering the holding means to the installation means, In the configuration in which the holding means is detachably mounted on the installation means, a socket means and a plug means that can be inserted / removed protrude from each other between the installation means and the holding means so as to open to the socket means. A taper-shaped receiving hole that is gradually reduced in diameter from the base portion toward the back end portion, and a tapered protrusion portion that is gradually reduced in diameter from the base portion toward the distal end portion is provided in the plug means. Between the receiving hole and the protrusion, the cross section is formed in a non-true circle selected from an oval or polygon so that the socket means and the plug means are fitted in a predetermined position around the axis. Provided with a mating peripheral surface, Posture control for rotating the relative position of the socket means and the plug means toward the predetermined position by the fitting peripheral surface when the socket means and the plug means are inserted into each other while being displaced from the predetermined position around the axis. It is the point which comprises a means.

The rope mechanism connects the holding means to the installation means in a state where a traction force is applied to the installation means via a rope wound around a reel in which the winding force is accumulated, and resists the winding force. It is preferable that the holding means can be separated from the installation means by feeding out the rope.

In a preferred embodiment of the present invention, the socket means and the plug means are arranged so as to be in a horizontal posture along a horizontal axis, and the fitting of the receiving hole and the protrusion which are mutually fitted with the downward load due to the weight of the product It is configured to act on the peripheral surface, and is provided with engaging means that engages the back end portion of the receiving hole and the tip end portion of the protruding portion in a direction against the downward load, The engaging means is configured to prevent the fitting peripheral surface from sliding due to the downward load.

In a further preferred embodiment of the present invention, when the fitting peripheral surface of the receiving hole and the protrusion are separated from each other, the socket means and the plug means are brought into a refraction posture by the load. Locking means is provided for locking the tip end portion of the projecting portion and the opening portion of the receiving hole that are positioned and close to each other.

At this time, the locking means constitutes elastic locking means that retains elasticity and removably locks, and when the socket means and the plug means are separated from each other against the elasticity, the locking means It is preferable to configure so as to unlock.

According to the present invention, the holding means 3 is automatically mounted in a desired position at a predetermined position even when the holding means 3 is returned to the installation means 1 without being magnetized and configured exclusively by a mechanical structure. In addition, it is possible to provide a product display apparatus configured so that the holding means 3 is not dropped from the installation means 1 even if it is not properly mounted.

FIG. 4 is a perspective view showing an installation unit, a socket unit, and a holding unit including a plug unit in an exploded state with respect to one embodiment of the present invention. FIG. 5 is a perspective view showing a state in which the installation unit is disassembled and the burglar alarm device is assembled to the holding unit with respect to the embodiment of the present invention. It is sectional drawing which shows the state which inserted and fitted the plug means of the holding means holding the goods with respect to one Embodiment of this invention with respect to the socket means of the installation means fixedly installed in the wall surface. It is sectional drawing which shows the state which pulled the holding | maintenance means away from the installation means regarding the effect | action of one Embodiment of this invention. It is sectional drawing which shows a state when a holding means is mounted in an installation means regarding the effect | action of one Embodiment of this invention. 1A and 1B show a first embodiment of a posture control means constituted by a fitting peripheral surface of a socket means and a plug means, wherein FIG. 3A is a sectional view showing the action of posture control, and FIG. It is sectional drawing which shows the state by which was fitted. The 2nd Example of the attitude | position control means comprised by the fitting peripheral surface of the socket means and the plug means is shown, (A) is sectional drawing which shows the effect | action of attitude | position control, (B) is a fitting peripheral surface after attitude control It is sectional drawing which shows the state by which was fitted. 1 shows an embodiment of a locking means, (A) is a sectional view showing a state where a plug means slid by a downward load with respect to a socket means is locked and locked, and (B) shows a locking means. It is an expanded sectional view. 1 shows an embodiment of an elastic locking means configured as a locking means, (A) is a sectional view showing a state in which a plug means is locked to a socket means in a pulling direction, and (B) is a locking state. The expanded sectional view which shows a means, (C) is an expanded sectional view which shows the state by which the latching means was cancelled | released against elasticity. 1 shows an embodiment of an engaging means, (A) is a sectional view showing a state in which the engaging means is engaged between a socket means and a plug means inserted into each other, and (B) is an engaging means. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

The product display device of the present invention is used for displaying products mainly for electronic devices such as digital cameras, smartphones, tablet terminal devices, and other portable terminal devices in stores, and its disassembly. The state is shown in FIGS. 1 and 2, and the assembled and used state is shown in FIG.

As shown in the figure, an embodiment of the present invention includes a housing 2 that constitutes an installation means 1 that is fixedly installed on a tabletop or a wall surface in a store, and a casing 4 that constitutes a holding means 3 that holds a product M from the back. A rope mechanism 6 having a rope 5 such as a wire cable for anchoring the holding means 3 to the installation means 1, and a socket means 7 and a plug for detachably mounting the holding means 3 on the installation means 1 Means 8 are provided. Preferably, the housing 2, the casing 4, the socket means 7, and the plug means 8 are made of synthetic resin.

As shown in FIGS. 2 and 3, the housing 2 that constitutes the installation means 1 is closed so that the opening on the opposite side of the flange plate 9 can be freely opened and closed by a synthetic resin lid member 10. A power supply means 11 such as a USB adapter and a synthetic resin winding housing 12 constituting the rope mechanism 6 are housed inside, and are fixedly installed on a tabletop, a wall surface or the like via the flange plate 9. . In the case of the usage example shown in FIG. 3, the flange plate 9 is fixed to the wall surface W with screws 13 or the like in a state where the housing 2 is embedded in a wall surface W such as a partition wall or a side wall of a fixture in the store. The power supply means 11 derives a main power supply connection means 14 for taking in power from an AC power supply.

In the case of the illustrated embodiment, the socket means 7 protrudes from the installation means 1 and the plug means 8 protrudes from the holding means 3. Hereinafter, the present invention will be described based on the configuration of the illustrated embodiment. However, in the present invention, the socket means 7 protrudes from the holding means 3 and the plug means 8 protrudes from the installation means 1 contrary to the illustration. In short, any configuration is possible as long as the socket means 7 and the plug means 8 that can be inserted and removed are provided opposite to each other between the installation means 1 and the holding means 3.

The socket means 7 forms a tapered receiving hole 15 whose diameter is gradually reduced from the opening at the protruding end toward the back end near the base end, and around the cylindrical wall forming the receiving hole 15. On the other hand, a hollow double cylinder having a skirt portion 16 that gradually increases in diameter from the projecting end toward the base end is formed, and as shown in FIG. 3, provided in the hollow part of the double cylinder. It is attached and fixed to the flange plate 9 of the housing 2 with a screw 18 or the like through the boss portion 17.

At this time, as shown in FIG. 3, the socket means 7 extends in an obliquely upward lateral direction in which the axis of the receiving hole 15 is set at an angle θ1 with respect to a horizontal axis H extending in the vertical lateral direction from the wall surface W. Attached and fixed along the horizontal axis X, whereby the front of the product M held by the holding means 3 mounted on the socket means 7 via the plug means 8 is inclined upward with respect to the vertical line V at an angle θ2. It is preferable to be configured to be in a posture.

The casing 4 constituting the holding means 3 is formed in a dish shape having an upper opening shape, and a hollow cylindrical plug means 8 is integrally projected from the bottom, and the plug means 8 is formed from the base portion to the tip portion. A tapered projection 19 having a gradually smaller diameter is formed.

As shown in FIG. 2, the casing 4 is provided with a theft alarm device 20. The burglar alarm device 20 includes a main body tag portion 21a that is fitted and fixed to the casing 4, and a mini tag portion 21b that extends from the main body tag portion 21a to the outside of the casing 4, and each has a fixing means such as a double-sided adhesive tape. 22 is fixed to the rear surface of the product M, and a detection switch 23 is provided on each fixed surface. When the fixing means 22 is peeled off from the product M, the detection switch 23 is activated to generate an alarm sound. It is configured.

In the case of the illustrated embodiment, the main body tag portion 21 a is provided with a rope fixing means 24, and the tip of the rope 5 fed out from the rope mechanism 6 is fixed.

As shown in FIG. 3, a reel 25 having a spring (not shown) that accumulates a winding force is built in the winding housing 12 of the rope mechanism 6, and the rope 5 is wound around the reel 25. Yes. Accordingly, the rope 5 is always wound up by the reel 25 biased in the winding direction, and the holding means 3 is pulled toward the installation means 1 to pull the tip of the rope 5. Thus, when the reel 25 is rotated against the winding force, the rope 5 is fed out, and the holding means 3 can be pulled away from the installation means 1.

A guide 26 made of synthetic resin along the side surface is provided on the side surface of the skirt portion 16 of the socket means 7 fixedly attached to the flange plate 9 of the housing 2. Is provided. The guide 26 forms a guide path 26 a that guides the cable 5 extending from the reel 25 along the side surface of the skirt portion 16, and leads the conductor 27 such as a USB cable derived from the product M to the power supply means. 11 is provided. The guide 26 is configured to be fitted in a fitting opening 28 formed in the flange plate 9 of the housing 2, and the guide 26 is fitted in the state in which the cable 5 and the conductor 27 are inserted into the fitting opening 28. When fitted to 28, the cable 5 and the conductor 27 are respectively inserted into the guide path 26a and the through hole 26b formed in a notch shape.

In the case of the illustrated embodiment, an annular frame member 29 along the opening edge of the receiving hole 15 is overlaid on the tip of the socket means 7 and, as shown in FIG. It is fixed. The frame member 29 is preferably formed of an elastomer such as rubber or silicone resin, or other elastic material. In this case, when the projection 19 of the plug means 8 is inserted into the receiving hole 15 of the socket means 7, the frame member 29 Functions as a cushioning material that elastically receives the bottom surface of the casing 4 constituting the holding means 3. However, the present invention is not limited to such a configuration.

(Attitude control means)
The receiving hole 15 and the protrusion 19 are selected from an elliptical shape or a polygonal shape so that the socket means 7 and the plug means 8 are fitted to each other only when they are aligned at a predetermined position around the axis. Further, the fitting surfaces 32 and 33 are formed in a non-round shape, and the fitting surfaces 32 and 33 are mutually connected in a state where the socket means 7 and the plug means 8 are displaced from the predetermined position around the axis. A posture control means 34 is configured to rotate the socket means 7 and the plug means 8 toward the predetermined position when inserted into the socket.

FIG. 6 shows a first embodiment of the posture control means 34. In this case, the cross-sections of the receiving hole 15 and the protrusion 19 are triangular triangles with each side and each corner curved in an outward arc shape. The fitting surface 32 is formed on the inner peripheral surface of the receiving hole 15, and the fitting surface 33 is formed on the outer peripheral surface of the protrusion 33. Therefore, the fitting surfaces 32 and 33 are formed in the triangular pyramid shape which has roundness by the combination with the taper shape mentioned above. In this case, with respect to the axis of the axis C, the holding means 3 is configured so that the position where the held product M is in the posture indicated by the chain line is the predetermined position P1. Therefore, as shown by a broken line in FIG. 6A, when the protrusion 19 is inserted into the receiving hole 15 in a state where the posture is shifted from the predetermined position P1 around the shaft center, the advance in the insertion direction is advanced. Accordingly, the protrusions 19 are rotated by acting so that the fitting surfaces 32 and 33 are aligned with each other, and when the insertion is completed, the posture is set to the predetermined position P1 as shown in FIG. To control. Thereby, the product M is displayed in a state where it is held at the predetermined position P1. In the example shown in the figure, the cross section is a rounded triangle. However, it may be a polygon such as a rounded quadrangular or pentagonal shape.

FIG. 7 shows a second embodiment of the posture control means 34. In this case, the cross-sections of the receiving hole 15 and the protrusion 19 are formed in an approximately elliptical shape and are fitted to the inner peripheral surface of the receiving hole 15. A surface 32 is formed, and a fitting surface 33 is formed on the outer peripheral surface of the protrusion 33. Therefore, the fitting surfaces 32 and 33 are formed in an elliptical cone shape by the combination with the above-described tapered shape. In this case, with respect to the axis of the axis C, the holding means 3 is configured so that the position where the held product M is in the posture indicated by the chain line is the predetermined position P1. Therefore, as shown by a broken line in FIG. 7A, when the protrusion 19 is inserted into the receiving hole 15 in a state where the posture is shifted from the predetermined position P1 around the axis, the advance in the insertion direction is advanced. Accordingly, the protrusions 19 are rotated by the fitting surfaces 32 and 33 being aligned with each other, and when the insertion is completed, the posture is set to the predetermined position P1 as shown in FIG. 7B. To control. Thereby, the product M is displayed in a state where it is held at the predetermined position P1.

Therefore, as shown in FIG. 3, by inserting the plug means 8 into the socket means 7, the holding means 3 holding the back of the product M is mounted on the installation means 1, and from the state where the product M is displayed, the customer When the product M is picked up and the holding means 3 is pulled away from the installation means 1, as shown in FIG. 4, the rope 5 is fed out, and the customer is in a state where the holding means 3 is anchored to the installation means 1 by the rope 5. Allow the product M to be touched. Therefore, as shown in FIG. 5, when the customer returns the product M to the original display position, the plug means 8 is inserted into the socket means 7 while receiving the pulling force of the rope 5 wound by the rope mechanism 6. . At this time, as described above, since the posture is controlled so as to hold the predetermined position P1 by the posture control means 34 even if it is returned in a state where it has been randomly set to the displacement position P2, the returned product M is It will be displayed again in the desired posture.

(Locking means)
In a state where the plug means 8 is inserted into the socket means 7, a downward load due to the weight of the product M acts on the receiving holes 15 and the fitting surfaces 32 and 33 of the protrusions 19 that are fitted to each other. At this time, as described above, since the receiving hole 15 and the protrusion 19 have a tapered surface formed in a pyramid shape or an elliptical cone shape, when the protrusion 19 is inserted into the receiving hole 15 in an incomplete state. As shown in FIG. 8 (A), when the downward load is received, the protrusion 19 is retracted from the receiving hole 15, the fitting surfaces 32 and 33 are separated from each other, and the holding means 3 may fall off. For this reason, as shown in the figure, when the socket means 7 and the plug means 8 are brought into a bending posture by the load, the opposing portions of the projecting portion 19 and the receiving hole 15 that are close to each other are secured to each other. Locking means 35 is provided.

In the case of the illustrated embodiment, as shown in FIG. 8B, the locking means 35 includes a locking claw 36 protruding from the outer periphery of the vicinity of the tip of the protrusion 19, and an inner periphery of the frame member 29. The holding claw 37 is provided so as to prevent the holding means 3 from falling off by locking the locking claw 36 and the receiving claw 37 to each other. Therefore, damage to the product M due to a drop impact is prevented. In addition, the location where the latching claw 36 and the receiving claw 37 are provided, and the shape and material thereof are not particularly limited.

By the way, when the locking means 35 is provided, as shown in FIG. 9A, when the plug means 8 is pulled out from the socket means 7 along the horizontal axis X, the locking means 35 is locked and pulled out. May interfere with work. For this reason, the locking means 35 constitutes an elastic locking means that retains elasticity and is detachably locked, and the plug means 8 can be moved from the socket means 7 in the pulling direction against the elasticity. For example, the locking means 35 is unlocked.

In the case of the illustrated configuration, the receiving claw 37 is integrally formed on the frame member 29 formed of an elastomer or other elastic material such as rubber or silicon resin as described above, and the receiving claw 37 is made elastically deformable so that it is elastic. It constitutes stopping means. Further, a tip member 38 formed of an elastomer or other elastic material such as rubber or silicone resin is provided at the tip of the protrusion 19 constituting the plug means 8, and a locking claw 36 is integrally formed on the tip member 38, By making the locking claw 36 elastically deformable, elastic locking means is configured. 9B and 9C, when the plug means 8 is pulled out from the socket means 7 in a state where the locking means 35 is locked, the locking claw 36 and / or the receiving claw 37 are removed. By being elastically deformed, the lock is released.

Incidentally, in the illustrated embodiment, both the locking claw 36 and the receiving claw 37 are configured to be elastically deformable, but only one of them may be configured to be elastically deformable. Further, the elastic locking means constituted by the locking means 35 is formed by a retractable ball which is elastically biased in a protruding direction by a spring, for example, in addition to forming a locking structure by an elastically deformable material. The locking means 35 is locked in a state in which the protrusion protrudes, but when the plug means 8 is pulled out from the socket means 7, the ball is retracted against the spring so that the locking means 35 is unlocked. May be.

(Engagement means)
As described above, a downward load due to the weight of the product M acts on the fitting holes 32 and 33 of the protrusions 19 fitted to each other with the plug means 8 inserted into the socket means 7. Therefore, even when the protrusion 19 is completely inserted into the receiving hole 15, the protrusion 19 moves backward from the receiving hole 15 due to sliding of the tapered fitting surfaces 32 and 33, and slides down. There is a risk. For this reason, as shown in FIG. 10 (A), an engagement means 39 for engaging the back end portion of the receiving hole 15 and the tip end portion of the projection 19 in a direction against the downward load is provided. The engaging means 39 is configured to prevent the fitting surfaces 32 and 33 from sliding due to the downward load.

In the case of the illustrated embodiment, as shown in FIG. 10B, the engaging means 39 includes a hole portion 40 formed at the back end portion of the receiving hole 15 and a shaft portion formed at the tip portion of the protrusion 19. 41, the hole portion 40 and the shaft portion 41 are not formed with a taper, and are formed by forming a fitting surface extending along the horizontal axis X in the same diameter state. As a result, by receiving the downward load Y of the product M, the fitting surface of the hole 40 and the shaft portion 41 along the horizontal axis X is opposed to each other even when the protrusion 19 tries to retreat in the diagonally downward pulling direction R. Thus, it is possible to prevent the protrusion 19 from moving in the pulling direction.

At this time, if the shaft portion 41 is formed by the tip member 38 made of an elastic material disposed at the tip portion of the protrusion 19, the shaft portion 41 is in a state of having elastic friction with respect to the hole 40. Can be fitted. However, the fitting surface of the hole 40 and the shaft 41 constituting the engaging means 39 is not necessarily provided over the entire circumference, and may be provided partially, and its shape, material, etc. are particularly limited. is not.

DESCRIPTION OF SYMBOLS 1 Installation means 2 Housing 3 Holding means 4 Casing 5 Line 6 Line mechanism 7 Socket means 8 Plug means 9 Flange plate 10 Cover member 11 Power supply means 12 Winding housing 13 Screw 14 Main power supply connection means 15 Receiving hole 16 Skirt part 17 Boss portion 18 Screw 19 Projection portion 20 Burglar alarm device 21a Main body tag portion 21b Mini tag portion 22 Adhering means 23 Detection switch 24 Adhering means 25 Reel 26 Guide 26a Guide path 26b Through-hole 27 Conductor 28 Fitting 29 Frame member 30 Inserting means 32 Mating surface (receiving hole)
33 Fitting surface (projection)
34 Attitude control means

35 Locking means 36 Locking claw 37 Receiving claw 38 Tip member 39 Engaging means 40 Hole 41 Shaft

Claims (5)

Installation means (1) fixedly installed, holding means (3) for holding a product from the back, and a rope mechanism (6) having a rope (5) for tethering the holding means to the installation means, In the configuration in which the holding means is detachably mounted on the installation means,
The mounting means (1) and the holding means (3) are provided with a socket means (7) and a plug means (8) that are detachable from each other so as to face each other, and the socket means (7) is opened from the opening. A tapered receiving hole (15) that is gradually reduced in diameter toward the back end portion is provided, and a tapered protrusion (19 that is gradually reduced in diameter from the base portion toward the distal end portion is provided in the plug means (8). )
Between the receiving hole (15) and the protrusion (19), the cross section is selected from an oval or polygon so that the socket means and the plug means are fitted in a predetermined position around the axis. Provided with a mating peripheral surface (32, 33) formed in a non-round shape,
When the socket means and the plug means are inserted into each other in a state of being deviated from the predetermined position around the axial center, the relative positions of the socket means (7) and the plug means (8) by the fitting peripheral surfaces (32, 33). A product display device characterized by comprising posture control means (34) for rotating the lens toward a predetermined position (P1). The rope mechanism (6) applies a traction force to the holding means (3) toward the installation means (1) via the rope (5) wound around the reel (25) in which the winding force is accumulated. The holding means (3) can be pulled away from the installation means (1) by feeding out the rope (5) against the winding force. The product display device according to claim 1. The socket means (7) and the plug means (8) are arranged so as to be in a lateral attitude along the horizontal axis (X), and the fitting of the receiving hole and the protrusion that are mutually fitted with the downward load due to the weight of the product. It is configured to act on the peripheral surface (32, 33),
An engagement means (39) is provided on the back end of the receiving hole (15) and the tip of the protrusion (19) to engage in a direction against the downward load. The product display device according to claim 1 or 2, wherein the product display device is configured to prevent sliding of the fitting peripheral surfaces (32, 33) due to the downward load. The socket means (7) and the plug means (8) are arranged so as to be in a lateral attitude along the horizontal axis (X), and the fitting of the receiving hole and the protrusion that are mutually fitted with the downward load due to the weight of the product. It is configured to act on the peripheral surface (32, 33),
When the fitting means (32, 33) of the receiving hole and the protrusion are separated from each other, the socket means (7) and the plug means (8) come close to each other when they are brought into a refraction posture by the load. The product display device according to claim 1, 2 or 3, further comprising locking means (35) for retaining and locking the opposing portions of the protrusion (19) and the receiving hole (15). . The locking means (35) constitutes an elastic locking means that retains elasticity and is detachably locked, and separates the socket means (7) and the plug means (8) against the elasticity. 5. The product display device according to claim 4, wherein the product display device is configured to release the locking of the locking means (35).

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