JP6182382B2 - Article advance device - Google Patents

Description

  The present invention relates to an article advancement apparatus.

  Patent Document 1 discloses a leaf spring having a rail portion formed along a product pushing direction, a push plate slidably engaged with the rail portion, and a spiral winding portion provided with a winding. And having a spring that urges the push plate along the rail portion in the direction of pushing out the product, and the winding portion of the spring is disposed on the opposite side of the push plate from the side facing the product. , One end of the spring pulled out from the winding part is fixed to the end of the rail in the pushing direction of the product or the vicinity thereof, and using the pressure acting upward on the rail of the spring, A product advance display device having means for pushing the plate upward is disclosed. As a result, the displayed products are pushed out from the rear to the front, and the remaining products are pushed out from the rear each time the products are taken out.

JP 2007-135875 A

  In the commodity advance display device described in Patent Document 1, the thin metal plate constituting the spring can be easily visually recognized from the outside. Thus, when a thin metal plate can be visually recognized, there is a possibility that the user may be disgusted or uneasy about the appearance. In addition, in the commodity advance display device described in Patent Document 1, there is a possibility that the user touches a thin metal plate constituting the spring.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an article advancement apparatus that can prevent a thin metal plate constituting a spring from being easily visually recognized and contacted from the outside.

  In order to solve the above problems, an article advancement apparatus according to the present invention has, for example, a first bottom surface provided with a rail portion and a second bottom surface provided below the first bottom surface. Provided to be slidable along the rail portion between a box-shaped frame, a front end that is a front end of the rail portion, and a rear end that is an end opposite to the front end of the rail portion. A pressing plate that presses an article placed on the first bottom surface to a front side that is a surface close to the front end of the frame, and a winding portion that is a spiral metal plate wound in a spiral shape. A spring accommodating portion that accommodates a spring and the winding portion, and is provided in a space above the first bottom surface of the frame body, and an outer end that is an outer end of the spring is defined as the first bottom surface. A spring accommodating portion provided with an opening for pulling out between the first bottom surface and the second bottom surface; A pulley provided at a position adjacent to the front surface of the body, and a string having one end provided on the push plate and the other end provided on the outer end of the spring, It is characterized by comprising a string in contact.

  According to the article advancement device according to the present invention, a box-shaped frame having a first bottom surface provided with a rail portion and a second bottom surface provided below the first bottom surface, A space above the bottom surface of 1 is a spring storage portion for storing a winding portion of a spring having a winding portion wound in a spiral shape, and an outer end that is an end outside the spring is defined as the first bottom surface. And a spring accommodating portion having an opening for drawing out between the second bottom surface and the second bottom surface. A pulley is provided at a position below the first bottom surface and adjacent to the front surface of the frame. A string provided on a push plate provided to be slidable along the rail portion and having a second end provided on the outer end of the spring is in contact with the outer periphery of the pulley ring. Thereby, it can prevent that the thin metal plate which comprises a spring cannot be easily visually recognized and contacted from the outside.

  Here, on the first bottom surface, the spring accommodating portion is a surface facing the front surface of the pressing plate and the frame body when the pressing plate is positioned in the vicinity of the rear end of the rail portion. It may be provided in a space formed between the rear surface. Thereby, the limited space can be utilized effectively.

Here, the range where at least the back surface of the frame is provided with the spring accommodating portion is formed of a transparent member, and the article unloading device is in a direction perpendicular to the longitudinal direction of the elongated metal plate. Unwinding that is unwound from the opening of the spring so as to cover the circumferential direction, and to be visible from the back surface of the frame when the push plate is located at an arbitrary position of the rail portion You may provide the resin-made coating | coated part which has a flexibility which coat | covers a part of part . Accordingly, the remaining amount of the article can be confirmed from the back side of the article advancement apparatus.

Here, at least the front surface of the frame body is formed of a transparent member, and the string changes the color of the string when the push plate moves to an arbitrary position of the rail portion. In order to be visible from the front, the pressing plate side and the outer end side of the spring may be formed in different colors . Accordingly, the remaining amount of the article can be confirmed from the front side of the article advancement apparatus.

  Here, the surface of the spring housing portion that comes into contact with the winding portion may be formed of a resin having excellent sliding characteristics with respect to the metal. Thereby, the frictional resistance between the spring and the case can be reduced.

  According to the present invention, it is possible to prevent the thin metal plate constituting the spring from being easily visible and contacted from the outside.

It is a perspective view which shows the article | item advancement apparatus 1 which is an example of this invention. (A) is the right view (right side is not shown) of the article | item advance apparatus 1, (B) is a front view of the article | item advance apparatus 1, (C) is the AA cross section of FIG. FIG. It is a figure explaining a push board, (A) is a perspective view, (B) is a side view, (C) is a front principal part enlarged view. It is a figure explaining the state at the time of use of the article | item advancement apparatus 1, Comprising: It is a figure which shows the case where a push board is located in the rear end of a rail part. It is a figure explaining the state at the time of use of the article | item advancement apparatus 1, Comprising: It is a figure which shows the case where a push plate is located in the middle of a rail part.

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

  FIG. 1 is a perspective view showing details of an article advancement apparatus 1 which is an example of the present invention. 2A is a right side view of the article advancement apparatus 1 (the right side is not shown), FIG. 2B is a front view of the article advancement apparatus 1, and FIG. It is AA sectional drawing of FIG. The article advancement apparatus 1 mainly includes a case 10, a push plate 20, a spring 30, and a string 40.

  The case 10 stores an arbitrary article 100 such as a cigarette. The case 10 is a box-shaped member having a substantially rectangular bottom surface formed of, for example, a transparent resin, and is formed in an arbitrary size according to the shape and storage amount of the article 100.

  The case 10 has an open top surface, and a rail portion 11, a locking step 12, a detachable opening portion 14 and the like are formed on a first bottom surface 10A that is a bottom surface on which the article 100 is placed. A second bottom surface 10B is provided below the first bottom surface 10A.

  The rail portion 11 is a long hole formed in a substantially central portion of the first bottom surface 10 </ b> A of the case 10 along the longitudinal direction of the case 10, that is, the arrangement direction of the articles 100. The locking step 12 is a step formed in the vicinity of the rear end of the rail portion 11 and is a portion for locking the push plate 20 when the article 100 is stored. The detachable opening 14 is a part that becomes an inlet or an outlet when the push plate 20 is attached to and detached from the rail part 11. The locking step 12 and the detachable opening 14 are not essential components.

  The case 10 is integrally formed with a spring accommodating portion 15 that accommodates the spring 30. As shown in FIGS. 1 and 2A, the spring accommodating portion 15 protrudes inside the case 10 (the region above the first bottom surface 10A) along the back and side walls of the case 10. Formed. Further, the spring accommodating portion 15 is formed in a size that does not interfere with the push plate 20 in a state where the push plate 20 is locked to the locking step 12 (see FIG. 4). The state in which the push plate 20 is locked to the locking step 12 is a state in which the push plate 20 is positioned in the vicinity of the rear end of the rail portion 11.

  Further, as shown in FIG. 2A, an opening is formed in the bottom surface of the spring accommodating portion 15, and an outer end (outer end) of the spring 30 is formed between the first bottom surface 10A and the second bottom surface 10B. It can be pulled out in between.

  As shown in FIG. 2A, the spring 30 pulled out from the spring accommodating portion 15 slides between the first bottom surface 10A and the second bottom surface 10B. Accordingly, a range in contact with the lower spring 30 of the first bottom surface 10A (surface A in FIG. 2A) and a range in contact with the upper spring 30 in the second bottom surface (surface B in FIG. 2A). ) Is preferably formed of a resin (for example, polytetrafluoroethylene) having excellent sliding characteristics with respect to the metal constituting the spring 30.

  It is considered that the contact between the outer end of the spring 30 and the first bottom surface 10A increases the resistance generated during sliding. Therefore, the portion of the outer end of the spring 30 that is in contact with the first bottom surface 10A is formed of a member made of a resin having excellent sliding characteristics with respect to metal or a shape that reduces frictional resistance (for example, a spherical shape). A member may be provided.

  Further, as the spring 30 slides and winds along the front wall of the spring accommodating portion 15, the surface of the spring accommodating portion 15 on which the spring 30 abuts (the surface in FIG. 2A). It is desirable to form C) with a resin excellent in sliding characteristics with respect to the metal constituting the spring 30. Thereby, the frictional resistance between the spring 30 and the case 10 can be reduced. As a method of forming the resin constituting the spring 30 with a resin excellent in sliding characteristics, a method of sticking a sheet or the like formed of a resin excellent in sliding characteristics, or a resin excellent in sliding characteristics. A method of applying can be considered.

  In the present embodiment, the case 10 is formed of a transparent resin, but the entire case 10 need not be formed of a transparent resin. At least the wall in front of the case 10 and the area of the back wall of the case 10 in which the spring accommodating portion 15 is provided may be formed of a transparent resin. However, in order to integrally mold the case 10, the entire case 10 is transparent. It is desirable to form with a resin.

  Further, the second bottom surface 10B need not cover the entire case 10. You may make it provide the 2nd bottom face 10B only at least the range (area | region in which the unwinding part 32 (detailed later) was provided in FIG. 4) to which the spring 30 slides.

  The push plate 20 is formed of resin, for example, and is slidable along the rail portion 11. The pressing plate 20 abuts on the article 100 located at the rearmost part, and presses the article 100 to the front side of the case 10 (see the arrow in FIG. 1) by the force of the spring 30.

  3A and 3B are diagrams for explaining the push plate 20, in which FIG. 3A is a perspective view, FIG. 3B is a side view, and FIG. The push plate 20 mainly includes a plate portion 21, a convex portion 22, a rail sliding contact portion 23, a reinforcing portion 24, a finger hook portion 25, a lower piece portion 26, and a string attaching portion 27.

  On the front side of the plate portion 21 (left side in FIG. 3B), a convex portion 22 is formed along the short direction. When the article 100 is displayed, the convex portion 22 comes into contact with the article 100.

  The rail sliding contact portion 23 is a concave portion that engages with the rail portion 11 formed in the case 10. The rail sliding contact portion 23 has a shape that draws an arc as shown in FIG. Thereby, in the cross section cut | disconnected in parallel with the board part 21, the rail part 11 and the rail sliding contact part 23 contact-point. Therefore, frictional resistance can be reduced.

  The reinforcing portion 24 is two substantially fan-shaped members provided on the back side of the plate portion 21. The finger-hanging portion 25 is a rib erected on the outer periphery of the reinforcing portion 24, and is for improving the operability when the user moves the push plate 20.

  A plate-like string attaching portion 27 is provided between the two reinforcing portions 24. One end of the string 40 is provided in the string attaching portion 27. In addition, in this Embodiment, as shown to a figure (B), although the end of the string 40 is attached to the upper end of the string attachment part 27, the attachment method and attachment position of the string 40 are not limited to this. For example, the string 40 may be tied to a hole provided in the string attaching part 27, may be bonded to the string attaching part 27, or may be crimped to the string attaching part 27 using a caulking metal fitting or the like. Further, the string 40 may be attached to an arbitrary position of the string attaching portion 27.

  Returning to the description of FIG. 1 and FIG. The spring 30 is a spring obtained by winding an elongated metal plate in a spiral shape with a winding. The spring 30 includes a winding part 31 wound in a spiral shape and an unwinding part 32 wound from the winding part 31. A hole 33 is formed near the tip (outer end) of the unwinding portion 32.

  The winding part 31 is provided inside the spring storage part 15. By pulling out the unwinding portion 32 from the opening on the bottom surface of the spring accommodating portion 15 and providing the other end of the string 40 in the hole 33, the pushing plate 20 is given a force in the direction of moving forward (see the arrow in FIG. 1). Be forced.

  A part of the unwinding part 32 is provided with a covering part 34 (not shown in FIG. 1). As shown in FIG. 2C, the covering portion 34 is provided so as to cover the circumferential direction of the elongated metal plate of the spring 30.

  The covering portion 34 is a cylindrical resin member, for example, a heat shrinkable tube. The covering portion 34 can be deformed in the circumferential direction. As the heat-shrinkable tube, various forms such as electron beam cross-linked soft polyolefin resin, soft polyvinyl chloride resin, and soft polyvinyl chloride resin can be used. Since the heat-shrinkable tube is already known, the description is omitted. It is desirable for the covering portion 34 to use a color different from the spring 30, particularly a conspicuous color such as red.

  In the present embodiment, a resin heat-shrinkable tube is used as the covering portion 34, but the shape of the covering portion is not limited to this. For example, as a cylindrical resin member that can be deformed in the circumferential direction, a stretchable tube (mesh tube) that is stretched by braiding a plastic string is used to form an elongated metal that constitutes the spring 30. A plate may be coated. Alternatively, the elongated metal plate may be covered by winding a heat-shrinkable resin tape around the elongated metal plate constituting the spring 30. Further, the elongated metal plate constituting the spring 30 may be covered with a resin-based paint (for example, paint containing SBR resin) that becomes rubbery after drying. That is, as long as the resin is flexible and can be deformed in accordance with the deformation of the metal plate, any material may be used to cover the spring. By using a flexible resin that can be deformed in accordance with the deformation of the metal plate, it is possible to prevent the covering portion 34 from being peeled off from the spring 30 due to the stretching and winding of the spring 30.

  The string 40 is a string-like member formed of resin such as polyester, rubber, thread, paper, wood, or the like. The string 40 has one end connected to the hole 33 and the other end connected to the string attaching portion 27 of the push plate 20. In addition, the cross-sectional shape of the string 40 may be a substantially circular shape or a substantially rectangular shape (plain weave). The string 40 includes a colored portion 40A colored in an arbitrary color (for example, black, orange, blue, etc.) and an uncolored (for example, white) non-colored portion 40B (detailed later). The string 40 may be formed by weaving and contacting a string colored in an arbitrary color and an uncolored string (satsuma processing or the like), or by dyeing a part of one white string. May be formed.

  As shown in FIG. 2B, the pulley 41 is pivotally supported on the first bottom surface 10 </ b> A of the case 10 so as to protrude downward from the first bottom surface 10 </ b> A of the case 10. The pulley 41 has a rotatable rope having one shaft at the center. The string 40 abuts on the outer periphery of the rope.

  The pulley 41 is provided at a position adjacent to the front surface of the case 10. Thereby, since the string 40 contact | abutted to a ring ring outer periphery passes the case 10 front vicinity, the string 40 can be visually recognized from the case 10 front side.

  The pulley 41 includes a first pulley 41A provided substantially in the vicinity of the center of the case 10 in the short direction, a parallel to the first pulley 41A along the short direction of the case 10, and the spring housing portion 15 and the case. 10 and a second pulley 41B provided at a position substantially parallel to the longitudinal direction. Thereby, the string 40 is bent into a substantially U shape (substantially U shape).

  How to use the article advancement apparatus 1 configured as described above will be described. The push plate 20 having the string 40 attached to the string attaching part 27 is fitted into the attachment / detachment opening 14 (see FIG. 1) formed at the end of the rail part 11. Then, after the pressing plate 20 is rotated so that the plate portion 21 is orthogonal to the longitudinal direction of the rail portion 11, the pressing plate 20 is slid into the rail portion 11 to engage the pressing plate 20 with the rail portion 11.

  The winding portion 31 of the spring 30 is placed in the spring storage portion 15, and the unwinding portion 32 is pulled out from the opening on the bottom surface of the spring storage portion 15. The string 40 is brought into contact with the outer periphery of the rope of the pulley 41, and the end of the string 40 that is not attached to the string attaching portion 27 is attached to the hole 33. Then, the push plate 20 is moved to the vicinity of the rear end of the case 10, and is engaged with the engagement step 12. After the articles 100 are arranged in the case 10, the push plate 20 is removed from the engagement step 12. Thereby, the article 100 is displayed in a state of being pressed forward. Note that when the push plate 20 is removed from the locking step 12, the spring 30 is expanded and wound inside the spring housing portion 15, so that the spring 30 does not jump out of the spring housing portion 15.

  Note that the present embodiment is characterized in that the user can easily grasp the remaining number of articles 100. Hereinafter, the remaining number display will be described.

  FIG. 4 shows a state where the push plate 20 is moved to the vicinity of the rear end of the case 10 and is locked to the locking step 12 (a state where the push plate 20 is located at the rear end of the rail), that is, the remaining number of articles 100. It is a figure which shows a state with many. FIG. 5 is a diagram showing a state where the push plate 20 is in an arbitrary position near the center of the case 10, that is, a state where the user can confirm that the remaining number of the articles 100 is small and the remaining number is small. 4 and 5, the hatched portion of the spring 30 is a portion covered with the covering portion 34.

  In the state shown in FIG. 4, the exposed amount of the unwinding portion 32 of the spring 30 is large, and the covering portion 34 cannot be visually recognized from the rear, that is, from the back side (rear side) of the case 10. Further, the colored portion 40A of the string 40 is covered with an article 100 (not shown) and cannot be visually recognized.

  On the other hand, in the state shown in FIG. 5, the spring 30 is wound up and the amount of exposure of the unwinding portion 32 is small compared to the state shown in FIG. 4. As a result, the user can visually recognize the covering portion 34 from behind, that is, from the rear side or the upper side of the case 10. In the state shown in FIG. 5, the string 40 moves as the spring 30 is wound, and the colored portion 40 </ b> A of the string 40 can be viewed from the front side of the case 10. As a result, the push plate 20 has moved from the rear end of the rail portion 11 to an arbitrary position (not limited to the position shown in FIG. 5), that is, the number of articles 100 in the article advancement apparatus 1 is less than a certain number. It is possible to make the user recognize that it has become (visualization of the remaining quantity).

  According to the present embodiment, since the spring is placed in the case, it is possible to prevent the spring from touching the finger of the user of the article advancement device. Further, even when breakage or the like occurs due to the life of the spring, it is possible to eliminate the risk that the user of the article advancement device touches the fracture surface of the spring. Furthermore, even when the string is broken, the spring is caught in the spring accommodating portion, so that safety can be ensured.

  Further, according to the present embodiment, since the spring is visually shielded by the case, the user who visually recognizes the article advancement device is prevented from mistakenly recognizing that the blade or the like is exposed, A sense of security can be produced.

  Moreover, according to this Embodiment, a spring can be easily coat | covered by using the cylindrical resin member which can deform | transform in the circumferential direction as a coating | coated part. In addition, by using a cylindrical resin member that can be deformed in the circumferential direction as the covering portion, the covering portion is not easily peeled off even when the spring is extended or wound, and the resin for displaying the remaining number is placed on the metal. Can be stably adhered.

  Further, according to the present embodiment, the color of the string can be changed when the string is visible from the front side of the case and the number of articles contained in the article advancement apparatus becomes a certain number or less. Therefore, the user can easily grasp the remaining number of articles. In addition, the spring housing part can be seen from the back side of the case, and the covering part is positioned at the winding part in the spring housing part when the number of articles contained in the article unloading device becomes a certain number or less. Therefore, the user can easily grasp the remaining number of articles. In this way, in order to be able to confirm the remaining number from both the front and back of the case, the use position of the article advancement device (for example, whether it is placed on the back of the cashier counter or on the cashier counter) ), The remaining number can be easily confirmed.

  For example, when using an article advance display device for sales of cigarettes, etc. at convenience stores, etc., since the article advance display device is arranged in a form that is closely packed vertically and horizontally, There was a problem that it was difficult to see from the front and back of the display device. On the other hand, according to the present embodiment, it is possible to check the remaining amount from both the front and back of the article advancement device. Note that it is not always necessary to perform both the configuration in which the color of the string is changed and the configuration in which the covering portion is positioned in the winding portion in the spring accommodating portion. Only one of them may be performed according to the usage state of the article advancement device.

  Further, according to the present embodiment, when the push plate is positioned in the vicinity of the rear end of the rail portion, the push plate and the spring storage portion are formed in such a size that they do not interfere with each other, so that the dead space is reduced. Can do. Therefore, as with the conventional product that does not form the spring accommodating portion, it is possible to secure the number of mounted items that use the case dimensions to the limit.

  Further, according to the present embodiment, since the spring accommodating portion is provided in the space above the first bottom surface, the height below the bottom surface (the height between the first bottom surface and the second bottom surface) is set. Can be lowered. Therefore, the height can be saved when a large number of the article advancement devices are arranged in the vertical and horizontal directions, and as a result, the accommodation efficiency of the article advancement device in the space having the same height can be increased.

  In the case where a spring storage portion is provided between the first bottom surface and the second bottom surface, and the spring is stood in the spring storage portion (position similar to the present embodiment), In comparison, it is necessary to reduce the diameter of the winding portion of the spring. In order to reduce the diameter of the winding portion of the spring, it is necessary to increase the amount of deformation of the metal that constitutes the spring, which may lead to faster fatigue failure. On the other hand, in the present embodiment, since the spring accommodating portion is provided in the space above the first bottom surface, the diameter of the winding portion of the spring can be increased, and therefore fatigue failure can be prevented. .

  Further, a method in which a spring is laid sideways between the first bottom surface and the second bottom surface is also conceivable. In this case, in order to reduce the height of the first bottom surface and the second bottom surface, it is necessary to narrow the width of the spring. However, if the width of the spring is narrowed, there is a problem that the spring performance deteriorates. is there. Therefore, it is desirable to provide the spring accommodating portion above the first bottom surface as in the present embodiment. However, depending on conditions such as the performance of the spring and the dimensions of the article advancement device, the spring may be laid sideways or the spring may be arranged in an oblique direction.

  In the present embodiment, the string having the colored portion 40A at a certain distance from the end provided on the push plate 20 so that the colored portion 40A of the string 40 can be visually recognized from the front side of the case 10 in the state shown in FIG. Although 40 was used, the coloring form of the string is not limited to this. For example, when the push plate is located at an arbitrary position of the rail portion 11, the color of the area that can be seen from the front side of the case 10, for example, the area in the vicinity of the position that contacts the outer periphery of the rope of the pulley 41, It is sufficient if the string is formed so as to be different from the color.

  In the present embodiment, the covering portion 34 is provided on the spring 30 so that the covering portion 34 is visible from the rear side of the case 10 in the state shown in FIG. It is not limited to this. For example, the covering portion 34 may be provided only in a range that can be visually recognized from the rear side of the case 10 when the push plate of the spring 30 is located at an arbitrary position of the rail portion 11.

  In the present embodiment, the spring storage portion 15 is formed so as to protrude inside the case 10 (the region above the first bottom surface 10A) along the back and side walls of the case 10. The position where the storage portion 15 is formed is not limited to this, and the storage portion 15 can be formed at any position as long as it is an area above the first bottom surface 10 </ b> A of the case 10. However, in order to reduce the dead space, it is desirable to form the spring accommodating portion 15 along the rear and side walls of the case 10.

  Further, in the present embodiment, two pulleys 41 (the pulleys 41A and 41B) are provided at positions adjacent to the front surface of the case 10, but the positions where the pulleys 41 are provided and the number of the pulleys 41 are not limited thereto. For example, when the spring storage portion is provided along the front and side walls of the case 10 and the unwinding portion 32 is unwound along the short direction of the case 10, the number of the pulleys 41 is only one (the pulley 41A). Good.

  In the present embodiment, one end of the string 40 is connected to the spring 30 and the other end is connected to the push plate 20, but the parts to which the string 40 is connected are not limited thereto. For example, using two strings, the spring 30 and an arbitrary part may be connected by one string, and the arbitrary part and the pressing plate 20 may be connected by another string. Alternatively, using two strings, the spring 30 and the pressing plate 20 may be connected by one string, and the pressing plate 20 and an arbitrary part may be connected by another string. As an arbitrary part, for example, an arbitrary part can be used as a remaining number display by using a part whose scale display position is changed by a pulling force such as a spring alone. In addition, as an optional component, a mechanical component, an electronic component, an electrical component, or the like that generates a motion by combining a plurality of components can be adopted.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included. .

  For example, in the above-described embodiment, the configuration in which the rail portion 11 is integrally formed with the case 10 is shown. However, the present invention is not limited to this. For example, the case and the rail are separate bodies. Are also applicable. Moreover, although the rail part 11 showed the structure formed in the 1st bottom face of the case 10, this invention is not limited to this, The rail part 11 is formed in the inclined bottom face of the case 10, etc. Even if it is a case, it is applicable.

1: Article unloading device, 10: case, 10A: first bottom surface, 10B: second bottom surface, 11: rail portion, 12: locking step, 14: detachable opening, 15: spring storage portion, 20: Push plate, 21: plate portion, 22: convex portion, 23: rail sliding contact portion, 24: reinforcing portion, 25: finger hook portion, 26: lower piece portion, 27: string attaching portion, 30: spring, 31: winding Turning part, 32: Unwinding part, 33: Hole, 34: Covering part, 40: String, 40A: Colored part, 40B: Non-colored part, 41: Pulley, 41A: First pulley, 41B: Second pulley , 100: article

Claims (5)

A box-shaped frame having a first bottom surface provided with a rail portion and a second bottom surface provided below the first bottom surface;
On the first bottom surface, slidably provided along the rail portion between a front end that is a front end of the rail portion and a rear end that is an end opposite to the front end of the rail portion. A pressing plate that presses the article placed on the front side, which is a surface near the front end of the frame,
A spring having a winding portion obtained by winding a long and narrow metal plate in a spiral shape;
A spring accommodating portion for accommodating the winding portion, provided in a space above the first bottom surface of the frame body, and an outer end that is an outer end of the spring is defined as the first bottom surface and the first A spring accommodating portion provided with an opening for drawing between the bottom surface of the two,
A pulley provided at a position below the first bottom surface and adjacent to the front surface of the frame;
One end is provided on the push plate, and the other end is a string provided on the outer end of the spring, and the string abuts on the outer ring of the pulley,
An article advancement device characterized by comprising: The article advancement device according to claim 1,
The spring accommodating portion is a space formed between the pressing plate and a back surface that is a surface facing the front surface of the frame body when the pressing plate is positioned in the vicinity of the rear end of the rail portion. An article advancement device, characterized in that it is provided in an article. The article advancement device according to claim 2,
The range in which the spring accommodating portion on at least the back surface of the frame body is provided is formed of a transparent member,
The article advancement device covers the circumferential direction, which is a direction perpendicular to the longitudinal direction of the elongated metal plate, and the push plate is positioned at an arbitrary position of the rail portion. An article advancement device comprising: a flexible resin covering portion that covers a part of an unwinding portion that is unwound from the opening of the spring so that the spring can be visually recognized. The article advancement device according to any one of claims 1 to 3,
At least the front surface of the frame body is formed of a transparent member,
The string is arranged between the push plate side and the outer end side of the spring so that the color of the string changes when the push plate moves to an arbitrary position of the rail portion from the front. An article advance device characterized by being formed in different colors . The article advancement device according to any one of claims 1 to 4,
The article advancement device, wherein a surface of the spring storage portion that contacts the winding portion is formed of a resin having excellent sliding characteristics with respect to the metal.

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