JP6687950B2 - Bag holding structure - Google Patents

Description

  The present invention relates to a bag opening device for expanding a bag mouth of a bag and a bag holding structure in the bag opening device.

  The applicant of the present application invented an umbrella bag attachment device for a folding umbrella that attaches a storage bag to the folding umbrella in the previous application (see, for example, Patent Document 1). The umbrella bag mounting device for a folding umbrella includes a main body that accommodates the umbrella bag and is continuously provided with an introduction portion of the upper folding umbrella and a take-out portion of the side folding umbrella, and is introduced from the introduction portion. A part of the stored article, for example, the tip of a folding umbrella comes into contact with and is biased to rotate and open the opening operation member that opens the opening of the umbrella bag, and is provided upright on the take-out side of the opening operation member. It has a rotatable wing plate and a regulating plate that is erected on the side opposite to the take-out portion side of the opening operation member.

  Inside the main body, a plurality of hangers are hung so that the opening of the umbrella bag is on the front side, and a plurality of the hangers are accommodated therein. The umbrella bag housed in the main body is sandwiched between the front plate and the rear plate inserted through the hanger. Since the front plate and the rear plate are flat plates, the bundle of umbrella bags is also sandwiched in a flat shape along the surfaces of the front plate and the rear plate.

  The opening operation member is composed of a rotating plate that rotates when the tip of the folding umbrella comes into contact with and is biased, and a tongue piece that is provided at the tip of the rotating plate and opens the opening of the umbrella bag. When the rotary plate is rotated by the tip of the folding umbrella, the tip of the tongue piece enters the opening of the umbrella bag to widen the opening of the umbrella bag. This opens the umbrella bag.

  Further, as a bag used in an umbrella bag mounting device for a folding umbrella, a packaging bag including a bag portion and a lip portion extending from the bag portion has been proposed (for example, Patent Document 1). 2). The bag portion has a front surface and a back surface made of a plastic material such as polypropylene, and is formed in a bag shape in which an opening is formed in one side and the other portion is closed. Further, a cutout portion formed by perforations is formed at the boundary between the bag portion and the lip portion in the width direction of the bag portion.

  Then, a plurality of the above-mentioned packaging bags can be laminated, and a part of the lip portions can be joined by heat welding to form a packaging bag bundle. In order to separate one packaging bag from the packaging bag bundle, one packaging bag may be pulled to cut and separate the packaging bag from the cut portion.

JP 2012-027053A JP, 2014-051312, A

  Consider a case where the packaging bag bundle is used as an umbrella bag assembly in the folding umbrella umbrella mounting device. The packaging bag bundle is sandwiched and held in a planar shape along the surfaces of the front plate and the rear plate in the umbrella bag mounting device for the folding umbrella. When the bag mouth of the top bag of the packaging bag bundle is widened, the opening operation member is operated as described above to bring the tip of the tongue into the opening of the bag arranged at the top of the packaging bag bundle. To enter. This will be described with reference to FIG.

  Since the umbrella bag mounting device for the folding umbrella holds the packaging bag bundle in a planar shape along the surfaces of the front plate and the rear plate, a bag bundle 900 corresponding to the packaging bag bundle is illustrated in FIG. As shown in FIG. 25 (a), it can be regarded as being held flat. With respect to the leading bag 910 of the bag bundle 900 in such a holding mode, a pulling force is applied to the front bag piece 912 so as to widen the bag mouth 911 of the bag 910 with the tongue piece 920 in the umbrella bag mounting device for the folding umbrella. When added (see the arrow I direction in FIG. 25A and FIG. 25B), the pulling force is also applied to the back bag piece 913 and the cutout portion 914 through both ends of the front bag piece 912 immediately after the start of applying the pulling force. To be In this case, the cutout portion 914 is cut and separated by the pulling force, and the bag 910 can be separated from the bag bundle 900 before the folding umbrella is housed in the packaging bag.

  Further, the tongue piece 920 enters near the bag mouth 911 and applies a pulling force to the front surface bag piece 912. The pulling force through the tongue piece 920 is largely applied to the vicinity of the bag mouth 911. Also in this case, the cutout portion 914 is cut and separated by the pulling force, and the bag 910 can be separated from the bag bundle 900 before the folding umbrella is housed in the packaging bag.

  In view of the above situation, the present invention provides a bag opening device that does not cut and separate the bags in an unintended stage in a bag bundle in which a plurality of bags are separably stacked, a bag holding structure in the bag opening device, and the bag opening device. An object of the present invention is to provide a bag and a bag bundle that are held by a bag holding structure in an apparatus.

  The present invention has been made to solve the above problems, and the bag holding structure in the bag opening device of the present invention has a bag arranged at the top in the stacking direction in a bag bundle in which a plurality of bags are separably stacked. In the bag holding structure of the bag opening device for expanding the bag mouth of the bag bundle, the bag bundle is formed so that the vicinity of both ends in the width direction of the bag bundle is convex toward the leading side in the stacking direction of the bag as compared with the vicinity of the center of the bag bundle in the width direction. It is characterized by holding a bundle.

  Further, the bag holding structure in the bag opening device of the present invention is characterized by including a guide portion that engages with the bag bundle and guides the bag bundle so as to be the convex.

  Further, the bag holding structure in the bag opening device of the present invention is characterized by comprising an attachment portion for attaching the bag bundle to the guide portion.

  Further, in the bag holding structure of the bag opening device of the present invention, the guide portion engages with the rearmost surface of the bag bundle in the stacking direction of the bags and guides both ends of the bag bundle so as to be convex. It is characterized by having a trailing side guide surface.

  Further, the bag holding structure in the bag opening device of the present invention is characterized by comprising a pressing member that presses the bag bundle into the guide portion from the front surface side in the stacking direction of the bag bundle.

  Further, the bag holding structure in the bag opening device of the present invention is characterized in that it is provided with a biasing means for pushing the guide portion toward the leading side in the stacking direction of the bags.

  Further, in the bag holding structure of the bag opening device of the present invention, it is provided with a biasing means for pushing the guide portion toward the leading side in the laminating direction of the bag, and the biasing means pushes the guide portion toward the leading side in the laminating direction of the bag. Thus, the bag bundle is engaged with the pressing member.

  Further, in the bag holding structure in the bag opening device of the present invention, the guide portion has a leading side guide surface that abuts on a leading surface in the stacking direction of the bag bundle to guide both ends of the bag bundle to the convex. It is characterized by having.

  Further, in the bag holding structure of the bag opening device of the present invention, the guide portion is curved or bent.

    Further, in the bag holding structure of the bag opening device of the present invention, the guide portion guides an end portion on the bag mouth side in the height direction of the bag bundle.

  Further, in the bag holding structure in the bag opening device of the present invention, the guide portion moves the bag bundle so that both ends of the bag bundle are convex at the bag mouth side end in the height direction of the bag bundle. The bag mouth side guide portion that guides and the non-bag mouth side guide portion that guides so as to be convex anywhere between the vicinity of the center in the height direction of the bag bundle and the end portion on the opposite side of the bag mouth. And are provided.

  Further, in the bag holding structure in the bag opening device of the present invention, the guide portion, the bag bundle so that the vicinity of both ends of the bag bundle is the convex at the bag mouth side end in the height direction of the bag bundle. It is characterized by comprising: a bag mouth side guide part for guiding and an auxiliary plate extending from near the center of the bag mouth side guide part to the bottom side of the bag mouth.

  Further, in the bag holding structure of the bag opening device of the present invention, at least one mounting portion is provided near the center in the width direction of the guide portion.

  Further, in the bag holding structure in the bag opening device of the present invention, the guide portion includes a central piece near the center in the width direction of the guide piece and both side pieces forming both sides in the width direction of the central piece, The central piece is movable in the stacking direction of the bags in the bag bundle.

  The bag holding structure in the bag opening device of the present invention is characterized by comprising at least one holding member which holds the bag bundle and the guide portion in the stacking direction.

  Further, in the bag holding structure of the bag opening device of the present invention, the guide portion is provided integrally with the bag bundle on the rearmost side surface in the stacking direction of the bag bundle.

  Further, in the bag holding structure of the bag opening device of the present invention, the guide portion is provided integrally with the bag bundle on the leading side surface in the stacking direction of the bag bundle.

  Further, the bag opening device of the present invention widens the bag holding part having the bag holding structure of the bag opening device and the bag mouth of the bag arranged at the top in the stacking direction of the bag bundle held by the bag holding part. And a bag opening portion.

  Further, the bag opening device of the present invention widens the bag holding part having the bag holding structure of the bag opening device and the bag mouth of the bag arranged at the top in the stacking direction of the bag bundle held by the bag holding part. A bag opening portion, and the guide portion is detachable from the bag holding portion.

  Further, in the bag opening device of the present invention, the bag opening portion is axially attached to a fixed shaft extending in the width direction of the bag bundle at a position facing the bag bundle held by the bag holding portion, and the fixed shaft. When it is rotated about, the tip of itself enters the inside of the bag through the bag mouth of the bag arranged at the top in the stacking direction of the bag bundle, and pulls away from the bag bundle to open the bag mouth of the bag. Characterized by spreading.

  The bag of the present invention is a bag that is held by the bag holding structure of the bag opening device, and includes a front bag piece, a back bag piece that constitutes a bag structure having a bag mouth together with the front bag piece, and the back surface. An extension piece that is a piece that extends further from the upper end in the height direction of the bag piece to the upper side in the height direction of the back bag piece, and a separable separation line that extends in the width direction of the extension piece within the extension piece. And is held by the holding structure of the bag opening device by a spare piece that is an upper portion in the height direction of the extension piece with respect to the separation line.

  A bag bundle held by the bag holding structure of the bag opening device of the present invention, wherein the bags constituting the bag bundle have a bag structure having a front bag piece and a bag mouth together with the front bag piece. A plurality of stacked back bag pieces, and an extension piece that is a piece that extends further from the upper end in the height direction of the back bag piece to the upper side in the height direction of the back bag piece. The bags are connected to each other within the range of ⅓ or less of the entire length in the width direction of the bag from both ends in the width direction of the extension piece toward the inside in the width direction.

  Further, the bag of the bag bundle of the present invention has at least one mounting hole in a width-direction central region secured at the width-direction center of the extension piece, and the width-direction central region is the entire width-direction region of the bag. It is characterized in that it is 1/3 or less.

  In addition, it is also preferable to adopt the following structure as a bag bundle used in the bag opening device of the present invention. That is, the main bag bundle is a bag bundle in which a plurality of bags for storing articles are stacked, and the bag is a sheet-shaped first bag piece (front bag piece) and a bag structure together with the first bag piece. A sheet-shaped second bag piece (back bag piece) constituting the above, an extension piece extending further upward from the upper end in the height direction of the second bag piece, and an extension member formed on the extension piece and engaged with an external member. The bag bundle in which a plurality of the bags are stacked is provided with a mating engagement hole, and the bag bundle is characterized in that it has a coupling portion that couples the extended pieces to be stacked with each other.

  In relation to the bag bundle, the engagement hole is formed in a widthwise central region that is ⅓ or less of a width dimension of the bag at a widthwise center of the extension piece.

  In relation to the bag bundle, the widthwise central regions of the extension pieces to be stacked are unbonded to each other.

  In relation to the bag bundle, the connecting portion is arranged on the outer side in the width direction of the bag, as compared with the engaging hole.

  In relation to the bag bundle, the connecting portion is formed within one-third or less of the width of the bag from both ends in the width direction of the extension piece inward in the width direction. .

  In relation to the bag bundle, the extension piece has a widthwise dimension of 10 cm or more.

  In relation to the bag bundle, it is characterized in that it has a separation line formed to extend in the width direction in the middle of the height direction of the extension piece and capable of separating the extension piece in the height direction.

  In relation to the bag bundle, the separation line is formed 0.5 cm or more above the lower end of the extension piece.

  In connection with the bag bundle, the separation line is formed below the engagement hole.

  In relation to the bag bundle, an adhesive layer is formed below the separation line in the extension piece or near the upper end of the first bag piece.

  In relation to the bag bundle, the material of the bag bundle is a synthetic resin film with fine holes.

  In connection with the bag bundle, the material of the bag bundle is a stretched polypropylene film.

  In relation to the bag bundle, the vicinity of the engagement hole is curved or bent in a state where the external member and the engagement hole are engaged with each other.

  According to the bag opening device of the present invention and the bag holding structure in the bag opening device, it is possible to obtain an excellent effect that the bags in the bag bundle in which a plurality of bags are separably stacked are not cut and separated at an unintended stage. .

It is a perspective view showing the article storage device in a 1st embodiment of the present invention. FIG. 3 is a perspective view of a bag and a bag bundle used in the article storage device according to the first embodiment of the present invention. (A) is a perspective view of a bag bundle, (b) is a perspective view of a bag, and (c) is a perspective view of a bag bundle in which a predetermined number of bags are cut and separated from the bag bundle. It is a perspective view showing a guide plate in a 1st embodiment of the present invention. (A) is a perspective view of a guide plate and a bag bundle in the first embodiment of the present invention, and (b) and (c) are perspective views in which the bag bundle is attached to the guide plate in the first embodiment of the present invention. is there. FIG. 3 is a perspective view showing a state in which a pressing member is attached to the article storage device according to the first embodiment of the present invention. (A) is a perspective view of the article storage device in the first embodiment before rotating the housing, and (b) is a perspective view of the article storage device in the first embodiment after rotating the housing. Is. It is a side view which shows the bag opening operation in which the bag opening part in 1st Embodiment of this invention expands the bag mouth of a bag. The bag opening operation is chronologically arranged in the order of (a) to (f). It is a side view which shows operation | movement which accommodates an article by the article accommodation apparatus in 1st Embodiment of this invention. The bag opening operation is arranged in time series in (a) to (d). FIG. 3 is a perspective view of a guide plate and a bag bundle according to the related art and the first embodiment of the present invention. (A) is a perspective view of a conventional guide plate and a bag bundle, (b) is a plan view showing an operation of expanding the bag mouth of a conventional bag, (c) is a guide in the first embodiment of the present invention It is a perspective view of a board and a bag bundle, (d) is a top view showing operation which opens a bag mouth of a bag in a 1st embodiment of the present invention. It is a side view which shows the bag opening operation in which the bag opening part in 2nd Embodiment of this invention expands the bag mouth of a bag. The bag opening operation is chronologically arranged in the order of (a) to (f). It is the schematic which shows the bag opening part in 3rd Embodiment of this invention. (A) is a bag opening part using an elastic body, (b) is a bag opening part using a spring. It is a side view which shows the bag opening operation in which the bag opening part in 3rd Embodiment of this invention expands the bag mouth of a bag. The bag opening operation is chronologically arranged in the order of (a) to (f). It is the schematic which shows the bag opening part in 4th Embodiment of this invention. It is a side view which shows the bag opening operation in which the bag opening part in 4th Embodiment of this invention expands the bag mouth of a bag. The bag opening operation is chronologically arranged in the order of (a) to (f). It is a perspective view showing a guide plate in an article accommodation device in a 5th embodiment of the present invention. (A) is a perspective view which shows the guide plate in the article storage device in 5th Embodiment of this invention, (b) is a perspective view which attached the bag bundle to the guide plate in the article storage device in 5th Embodiment of this invention. It is a figure. It is a perspective view showing a guide plate in an article accommodation device in a 6th embodiment of the present invention. (A) is a perspective view which shows the guide plate in the article storage device in 6th Embodiment of this invention, (b) is a perspective view which attached the bag bundle to the guide plate in the article storage device in 6th Embodiment of this invention. It is a figure, (c) is a perspective view showing a guide plate and an auxiliary plate in an article accommodation device in a 6th embodiment of the present invention, and (d) is a guide plate in an article accommodation device in a 6th embodiment of the present invention. It is a perspective view which attached the bag bundle to the auxiliary plate. It is a perspective view showing a guide plate in an article accommodation device in a 7th embodiment of the present invention. (A) is a perspective view of a bag bundle attached to a guide plate in the article storage device according to the seventh embodiment of the present invention, and (b) is a bag bundle attached to the guide plate in the article storage device according to the seventh embodiment of the present invention. It is the top view (top view) which attached. It is a perspective view showing a guide plate in an article accommodation device in an 8th embodiment of the present invention. (A) is a perspective view which shows the guide plate in the article storage device in 8th Embodiment of this invention, (b) is a perspective view which attached the bag bundle to the guide plate in the article storage device in 8th Embodiment of this invention. It is a figure. It is a perspective view showing a guide plate in an article accommodation device in a 9th embodiment of the present invention. (A) is a perspective view which shows the guide plate in the article storage device in 9th Embodiment of this invention, (b) is a perspective view which attached the bag bundle to the guide plate in the article storage device in 9th Embodiment of this invention. It is a figure. It is a perspective view showing a guide plate and a standing part in an article accommodation device in a 10th embodiment of the present invention. The operations of attaching the bag bundle and the guide plate to the standing portion are arranged in time sequence in the order of (a) to (c). It is a figure which shows the guide plate in the article accommodation apparatus in 11th Embodiment of this invention. (A) is a perspective view of the guide plate in the article storage device in the 11th embodiment of the present invention, and (b) is a side view of the guide plate in the article storage device and the bag bundle 90 in the 11th embodiment of the present invention. It is a front view. It is a side view which shows a mode that a tip arm enters into the bag bundle attached to the guide plate in the article accommodation device in an 11th embodiment of the present invention. It is a perspective view which shows the bag bundle used with the article accommodation apparatus in 12th Embodiment of this invention. FIG. 13 is a plan view of a plurality of types of bags as a thirteenth embodiment used in the article storage device according to the first to twelfth embodiments of the present invention. It is a top view of a bag as a 14th embodiment used with an article accommodation device in a 1st embodiment-12th embodiment of the present invention. It is a figure which shows the advantage of the bag as 14th Embodiment. (A) is a perspective view of the bag of this embodiment, (b) is a perspective view of the conventional bag, (c) is a figure which shows the work condition which installs the bag of this embodiment, (d) [Fig. 8] is a view showing a work situation of installing a conventional bag. It is a schematic diagram which shows a mode that the bag mouth of a bag is expanded in the conventional article storage device. FIG. 6A is a perspective view showing how the bag mouth of the bag is widened in the conventional article storage device, and FIG. 9B is a plan view (top view) showing how the bag mouth of the bag is widened.

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

<1. First Embodiment>
An article storage device 1 according to an embodiment of the present invention will be described with reference to FIG. The article storage device 1 expands the bag mouth 91d of the bag 91 held inside, and loads the article into the bag 91 through the bag mouth 91d to store the article in the bag 91. Such an article storage device 1 includes, for example, a bag opening mechanism 10 and an article insertion opening 16. Note that the article storage device 1 may be regarded as the bag opening mechanism 10 that is regarded as a bag opening device and the bag opening device is provided with the article insertion opening 16.

  The bag opening mechanism 10 expands the bag mouth 91d of the bag 91 arranged at the top of the bag 91 in the stacking direction in the bag bundle 90 in which a plurality of bags are separably stacked. In the following, the stacking direction of the bags 91 in the bag bundle will be referred to as the bag stacking direction. Further, the height direction of the bag bundle 90 and the height direction of the bag 91 are referred to as the bag height direction, and the bag mouth 91d side in the bag height direction is the bag height direction bag mouth side or upper side, bag height. The bag bottom side 91h in the direction is referred to as the bag bottom direction or the bag bottom side in the bag height direction.

<1-1. About bag ＞
As shown in FIG. 2, the bag bundle 90 is a bag in which a plurality of bags 91 having a plurality of bag openings 91d are separably stacked. As shown in FIG. 2B, the bag 91 includes a front bag piece 91a, a back bag piece 91b, an extension piece 91c, and a bag mouth 91d. The front bag piece 91a and the back bag piece 91b are made of substantially rectangular vinyl pieces. The front bag piece 91a and the back bag piece 91b are overlapped with each other, and have a structure in which both widthwise end sides and one end side in the height direction are sealed. The other end sides in the height direction of the front bag piece 91a and the back bag piece 91b are not sealed to each other, and that portion is a bag mouth 91d. As a result, a bag structure having the bag mouth 91d is formed.

  The extension piece 91c is a portion extended upward from the back bag piece 91b by a predetermined length in the height direction of the bag 91. The extension piece 91c is composed of a substantially rectangular vinyl piece. The length of the extension piece 91c in the width direction is the same as the length of the back bag piece 91b in the width direction.

  The extension piece 91c is divided into a spare piece 91f and a spare piece 91g with a separation line 91e provided in the width direction of the extension piece 91c as a boundary. The separation line 91e is a linear separable structure that can separate the spare piece 91g from the spare piece 91f. The separation line 91e is configured by, for example, a perforation cut line that extends in the width direction of the extension piece 91c provided in the middle of the extension piece 91c, but is not limited to this and is a separable structure of another form. (For example, both ends may be cut).

  The spare piece 91f is a portion extended upward from the back bag piece 91b by a predetermined length in the height direction of the bag 91. The spare piece 91f can serve as a lid for closing the bag mouth 91d, for example, but the spare piece 91f is not limited to this application and may be used for other applications. The spare piece 91g is, for example, as shown in FIG. 2A, a portion where the mounting hole 92 is provided when the bags 91 are stacked to form the bag bundle 90. Further, the spare piece 91g is also a portion that joins the bags 91 that are front and back in the bag stacking direction by bonding, heat welding, or the like when the bags 91 are stacked. The regions where the spare pieces 91g are bonded or heat-welded may be only a partial region between the spare pieces 91g or the entire regions between the spare pieces 91g.

  A bag bundle 90 shown in FIG. 2A is formed by stacking the bags 91 and joining them in a predetermined region of the spare piece 91g as described above. When separating the bag 91 from the bag bundle 90, the bag 91 is separated along the separation line 91e. Then, when the bag 91 is separated from the bag bundle 90, the spare piece 91f is separated, but the spare piece 91g is not separated but remains in a coupled state as shown in FIG. 2C.

  As shown in FIG. 2A, the bag bundle 90 is provided with two attachment holes 92 penetrating in the bag stacking direction of the bag bundle 90 at a portion corresponding to the spare piece 91g of the bag bundle 90.

<1-2. About bag opening mechanism>
Next, the bag opening mechanism 10 will be described with reference to FIGS. 1 and 2. The bag opening mechanism 10 includes, for example, a bag holding unit 11 and a bag opening unit 15.

<1-2-1. Bag holder>
The bag holding unit 11 fixes the bag bundle 90 so that the vicinity of both widthwise ends of the bag bundle 90 is convex toward the leading side of the bag bundle 90 in the bag stacking direction as compared with the vicinity of the widthwise center of the bag bundle 90. It has a bag holding structure for holding. For example, in the case of the bag bundle 90 shown in FIG. 2A, the bag holding unit 11 has the bag bundle 90 such that both widthwise end surfaces 90b of the bag bundle 90 face the leading side in the bag stacking direction. Hold and hold. The bag holding unit 11 includes a guide unit 12 and an attachment unit 13 that attaches the bag bundle 90 to the guide unit 12.

  The guide portion 12 is engaged with the bag bundle 90 and guides the bag bundle 90 so that the vicinity of both widthwise ends of the bag bundle 90 is convex toward the leading side in the bag stacking direction as compared with the vicinity of the widthwise center of the bag bundle 90. Is to have. The guide 12 includes, for example, a main body 120 and a guide plate 121.

  The guide plate 121 engages with the rearmost surface of the bag bundle 90 in the bag stacking direction, and guides so that the vicinity of both widthwise ends of the bag bundle 90 is convex as compared with the vicinity of the widthwise center of the bag bundle 90. It has a trailing side guide surface 121a. Here, the guide plate 121 will be described with reference to FIG. For example, as shown in FIG. 3 (a), the guide plate 121 moves forward from the plate-shaped member in the front-rear direction as it advances from a central piece 124 that configures the vicinity of the width-direction center of the plate-shaped member to both ends in the plate-shaped member in the width direction. A plate-shaped member that bends inward is assumed as an example, but the present invention is not limited to this, and other forms may be used.

  When the bag bundle 90 is attached to the guide plate 121, the rearmost surface of the bag bundle 90 in the bag stacking direction is engaged (contacted) with the trailing guide surface 121a corresponding to the front surface of the guide plate 121. Then, when the bag bundle 90 is engaged (contacted) with the trailing guide surface 121 a of the guide plate 121, the mounting portion 13 is passed through the two mounting holes 92 of the bag bundle 90. Further, when the bag bundle 90 is attached to the guide plate 121, the bag bundle 90 is attached so that the height direction of the bag bundle 90 matches the height direction of the guide plate 121.

  As shown in FIG. 3A, the mounting portion 13 is, for example, in the front-rear direction of the tail side guide surface 121a of the guide plate 121 near one end in the height direction of the central piece 124 (the bag mouth side end portion in the bag height direction). It is assumed that the two L-shaped members are provided upright toward the front (in the direction perpendicular to the plane), but the present invention is not limited to this, and one or more L-shaped members, Other modes may be used. The two L-shaped members are separated from each other by a predetermined distance in the width direction of the guide plate 121 and are erected on the front side in the front-rear direction (front side in the plane vertical direction) of the trailing side guide surface 121a.

  When the bag bundle 90 is attached to the guide plate 121 in the manner described above, as shown in FIG. 3B, the rearmost guide surface 121a of the guide plate 121 is engaged with the rearmost surface of the bag bundle 90 in the bag stacking direction. It becomes a mode. Further, the height direction of the guide plate 121 coincides with the bag height direction. As a result, as compared with the vicinity of the center of the bag bundle 90 in the width direction, the vicinity of both ends in the width direction of the bag bundle 90 is guided so as to be convex toward the leading side of the bag bundle 90 in the bag stacking direction.

  The mounting portion 13 including the two L-shaped members is preferably provided near the widthwise center of the guide plate 121 (for example, in the center piece 124). This is for facilitating attachment of the bag bundle 90 to the guide plate 121. When the mounting portion 13 is provided in the vicinity of the center of the guide plate 121 in the width direction, it may be difficult to align the vicinity of both ends of the bag bundle 90 with the guide plate 121. In that case, as shown in FIG. 3 (c), two sandwiching members 128 that sandwich the bag bundle tip portion corresponding to the spare piece 91 g of the bag bundle 90 and the guide plate 121 in the stacking direction are used to store the bag bundle 90. The vicinity of both ends may be along the guide plate 121. It should be noted that there may be one or three or more sandwiching members 128.

  Next, the main body 120 will be described with reference to FIGS. 1 and 4. As shown in FIG. 1, the main body 120 is composed of a base 122 and an upright portion 123. The base 122 is arranged on the bag bottom side in the bag height direction when the bag 91 attached to the guide plate 121 is used as a reference. The standing portion 123 is formed of, for example, a plate-shaped member having a predetermined shape. When the bag 91 attached to the guide plate 121 is used as a reference, the upright portion 123 is upright from one end of the base 122 toward the bag height direction bag mouth side.

  As shown in FIG. 4A, a casing 152 is provided at the end of the upright portion 123 on the bag mouth side in the bag height direction. The housing 152 is assumed to be, for example, a box-shaped one in which at least a part of the bottom surface is opened as shown in FIG. 4A, and the article insertion opening 16 is formed on the ceiling surface. , But is not limited to this. The housing 152 is arranged in such a manner that the height direction of the housing 152 coincides with the bag height direction. In addition, one side 152a of the bottom surface of the casing 152, the bag height direction bag mouth side end of the upright portion 123, and a shaft 152b extending in the width direction of both of them constitute a hinge mechanism 152c. In this case, the housing 152 opens and closes as a lid of the main body 120, as shown in FIG.

  A holding member 129 extending toward the bottom surface side in the height direction of the housing 152 is provided near the article insertion opening 16 on the ceiling surface of the housing 152. The pressing member 129 sandwiches the bag bundle 90 together with the guide plate 121. As shown in FIG. 4 (a), the pressing member 129 is similar to the guide plate 121 in that, as it goes from the central piece 129 a forming the vicinity of the center in the width direction of the plate member to both ends in the width direction, the vertical direction of the plate member is increased. It is designed to bend forward (forward and backward).

  When the bag 91 is attached to the guide plate 121, the height direction of the pressing member 129 coincides with the height direction of the housing 152, and the pressing member 129 is closer to the bag height direction bag mouth side than the bag mouth 91d. The pressing member 129 is provided so as to be arranged.

  Further, the end portion 129b of the pressing member 129 on the bottom surface side in the height direction and the end portion 121c of the guide plate 121 in the height direction on the bag mouth side are shown in the dashed-dotted line elliptic region R in FIG. 4 in the height direction, for example. It is arranged so that only a predetermined area overlaps. This overlapping portion serves as a portion for sandwiching the bag bundle 90.

  As shown in FIG. 4B, it is assumed that the housing 152 is rotated counterclockwise with respect to the upright portion 123 by the hinge mechanism 152c. Along with the counterclockwise rotation of the casing 152, the pressing member 129 provided on the ceiling surface of the casing 152 also moves. Then, after the bag bundle 90 is attached to the guide plate 121, when the housing 152 is rotated clockwise with respect to the upright portion 123 by the hinge mechanism 152c, the pressing member 129 together with the guide plate 121 in the overlapping portion. The bag bundle 90 is moved so as to sandwich it. The portion in which the bag bundle 90 is sandwiched (one-dot chain line elliptical region R) needs to be at least on the bag height direction bag mouth side of the bag mouth 91d so that the bag mouth 91d is not sandwiched, and any portion that satisfies that (For example, a region corresponding to the spare piece 91g of the bag bundle 90) is also included in the scope of the present invention.

  Here, it returns to FIG. 1 again and demonstrates. The guide plate 121 is provided on the front portion of the upright portion 123 in the front-rear direction (leading side surface in the bag stacking direction). The guide plate 121 is guided to the front surface 123a of the upright portion 123 so that the bag stacking direction and / or the width direction of the guide plate 121 matches the bag stacking direction and / or the width direction of the upright portion 123, respectively. It is provided so that the back surface of the plate 121 is arranged.

  The guide plate 121 may be provided so as to be detachable from the upright portion 123. In this case, for example, the mounting portion 13 (L-shaped member) is erected so as to be erected, for example, toward the front in the plane perpendicular direction (front side in the bag stacking direction) of the front surface 123a of the standing portion 123. Is provided on the front surface 123a of the. Two mounting holes 121b are provided near the end 121c of the central piece 124 of the guide plate 121 on the bag mouth side in the bag height direction. The guide plate 121 is attached so that the attachment portion 13 (L-shaped member) is passed through the two attachment holes 121b. When removing the guide plate 121 from the upright portion 123, the mounting hole 121b is removed from the mounting portion 13 (L-shaped member).

  When the bag bundle 90 is held by the bag holding unit 11 as described above, the bag bundle 90 is held such that the height direction of the bag bundle 90 matches the height direction of the article storage device 1.

<1-2-2. About the bag opening section>
The bag opening part 15 expands the bag mouth 91d of the bag 91 arranged at the top in the stacking direction of the bag bundle 90 held by the bag holding part 11. The bag opening portion 15 includes, for example, at least a fixed shaft 151, a telescopic arm 160, and a tip arm 155.

  The fixed shaft 151 is provided in the housing 152, for example. The telescopic arm 160 and the tip arm 155 are held by the housing 152 through the fixed shaft 151. The fixed shaft 151 is arranged in the housing 152 at a position facing the guide plate 121 in the bag holding unit 11. The fixed shaft 151 extends in the width direction of the guide plate 121 (width direction of the bag bundle 90).

  The telescopic arm 160 is pivotally attached to the fixed shaft 151 such that the width direction of the telescopic arm 160 and the direction in which the fixed shaft 151 extends match. The telescopic arm 160 is held in a state of extending in the height direction of the housing 152, as shown in FIG. 1, when no force is applied. In addition, the telescopic arm 160 has a linear distance that directly connects the intermediate portion 160a of the telescopic arm 160 (the portion that is attached to the fixed shaft 151) and the other end 160b of the telescopic arm 160 (hereinafter, this linear distance will be referred to as the telescopic arm straight line). It has an expansion and contraction mechanism that can expand and contract.

  The expansion / contraction mechanism of the expansion / contraction arm 160 is assumed to be composed of the lever arm 153 and the intermediate arm 154 as an example, but the expansion / contraction mechanism is not limited to this and may be composed of more arms.

  The lever arm 153 is pivotally attached to the housing 152 at an intermediate portion of the lever arm 153 via a fixed shaft 151 extending in the width direction of the lever arm 153. That is, the lever arm 153 is held by the housing 152 in a state of being rotatable about the fixed shaft 151 as a center point. The lever arm 153 is held in a state of extending in the height direction of the housing 152, as shown in FIG. 1, when no force is applied.

  When the lever arm 153 is tilted so as to rotate clockwise (direction of arrow A) by a predetermined angle about the fixed shaft 151, the intermediate arm 154 and the tip arm 155 cause the guide plate 121 to move about the fixed shaft 151. Rotate clockwise in the direction (direction of arrow B).

  One end of the intermediate arm 154 is pivotally attached to one end of the lever arm 153 via a shaft 156. The shaft 156 extends in the width direction of the guide plate 121 (width direction of the bag bundle). Such an intermediate arm 154 is rotatable around a shaft 156. The other end of the intermediate arm 154 is pivotally attached to one end of the tip arm 155 via a shaft 157 and a return spring 158. The shaft 157 extends in the width direction of the guide plate 121 (width direction of the bag bundle). Such a tip arm 155 is rotatable about a shaft 157. The return spring 158 is an elastic spring member that generates a turning force that restores the length direction of the tip arm 155 to match the length direction of the intermediate arm 154 when the tip arm 155 is rotated.

  Here, the operation of the bag opening portion 15 will be described with reference to FIG. Before operating the bag opening portion 15, as shown in FIG. 5A, the retractable arm 160 (lever arm 153 and intermediate arm 154) and the tip arm 155 are maintained in a substantially straight posture. Thus, the telescopic arm 160 (lever arm 153 and intermediate arm 154) and the tip arm 155 are held. The telescopic arm linear distance at this time is the distance L0.

  As shown in FIG. 5B, when the lever arm 153 is rotated clockwise (direction of arrow C) around the fixed shaft 151, both the intermediate arm 154 and the tip arm 155 are in the bag height direction bag mouth. Move to the side. It is assumed that the bag 91 in FIG. 5 is at the top of the bag bundle 90 in the stacking direction.

  As shown in FIG. 5C, when the lever arm 153 is further rotated about the fixed shaft 151 as a center point, the intermediate arm 154 rotates about the shaft 156 by its own weight. As a result, the lever arm 153 and the intermediate arm 154 are bent upward (toward the bag mouth in the bag height direction). At this time, the telescopic arm linear distance is the distance L1 (<L0). In the state shown in FIGS. 5B and 5C, since the lever arm 153 and the intermediate arm 154 are bent upward, the linear distance of the telescopic arm is shortened.

  As shown in FIG. 5D, as the lever arm 153 further rotates, the tip arm 155 moves further upward (bag height direction bag mouth side) and contacts the contact surface 125. When the tip arm 155 comes into contact with the contact surface 125, the tip arm 155 rotates about the shaft 157 and the entire surface of the tip arm 155 comes into contact with the contact surface 125.

  The contact surface 125 is a surface closer to the bag mouth in the bag height direction than the bag mouth 91d. When the tip arm 155 moves in the height direction and the bag bottom direction along the abutment surface 125, the tip surface 155 moves to the inside of the bag 91 via the bag mouth 91d. Any form may be used as long as it is possible. Further, on the contact surface 125, for example, an extension piece 91c of the bag 91 may be arranged, or a pressing member 129 (see FIG. 4) may be arranged. In FIG. 5D, the tip arm 155 is in contact with the portion of the contact surface 125 where the extension piece 91c is arranged, but this is an example, and the present invention is not limited to this. The part on the contact surface 125 to which the tip arm 155 is initially moved can be appropriately changed.

  The tip arm 155 may be directly moved to the bag mouth 91d without being brought into contact with the contact surface 125. In this case, the tip arm 155 once comes into contact with the inner surface of the back bag piece 91b inside the bag 91 and moves to the bag bottom side in the bag height direction.

  Next, when the lever arm 153 is released, since the intermediate arm 154 and the tip arm 155 are heavier with the fixed shaft 151 as a boundary, as shown in FIG. 5D, counterclockwise rotation about the fixed shaft 151 ( The lever arm 153 rotates in the direction of arrow D), and the tip arm 155 abuts the contact surface 125 (the front surface of the extension piece 91c) and moves along the contact surface 125 (the front surface of the extension piece 91c) in the bag height direction. Move to the bottom of the bag. In the process, as shown in FIG. 5 (e), the tip arm 155 enters the inside of the bag 91 via the bag mouth 91d.

  On the other hand, the lever arm 153 and the intermediate arm 154 expand / contract the telescopic arm linear distance according to the reaction force that the tip arm 155 receives from the contact surface 125 (the front surface of the extension piece 91c). Then, as the lever arm 153 rotates, the intermediate arm 154 enters the inner part of the bag 91 through the bag mouth 91d together with the tip arm 155, as shown in FIG. 5 (e).

  The lever arm 153 and the intermediate arm 154 operate so as to rotate around the shaft 156 as they enter the inside of the bag 91 to extend the telescopic arm linear distance. At the same time, as the lever arm 153 rotates in the direction away from the bag 91, the tip arm 155 gradually rotates around the shaft 157 so as to separate from the inner surface of the back bag piece 91b and moves away from the bag 91. Move to. Further, as the lever arm 153 rotates in the direction away from the bag 91, the intermediate arm 154 also moves in the direction away from the bag 91.

  By the operations of the intermediate arm 154 and the tip arm 155 as described above, the front bag piece 91a is pulled from the inside of the bag 91 in the direction in which the bag mouth 91d expands. Finally, the lever arm 153, the intermediate arm 154, and the tip arm 155 operate so as to return to a substantially linear posture (initial state) as shown in FIG. To do. As a result, the bag mouth 91d is greatly expanded.

  Since the conventional bag opening arm hooks the tip near the bag mouth 91d to open the bag mouth 91d, the force applied to the bag 91 when the bag mouth 91d is opened is large only near the bag mouth 91d. As a result, the force applied to the separation line 91e of the bag 91 is increased, and the bag 91 is easily cut and separated from the separation line 91e in the process of unfolding the bag 91. According to the telescopic arm 160 as described above, the distal arm 155 extends as it enters the inside of the bag 91, so that part of the distal arm 155 and the telescopic arm 160 (intermediate arm 154) inside the bag 91. Spread the bag mouth 91d with the bag deep inside. Therefore, in the bag opening portion 15, the force applied to the bag 91 when the bag mouth 91d is widened can be dispersed throughout the bag 91, and the force applied to the separation line 91e of the bag 91 can be reduced. This can prevent the bag 91 from being cut and separated from the separation line 91e in the process of expanding the bag mouth 91d.

  Further, since the conventional bag opening arm has a fixed orbit of rotation, it is necessary to open the bag 91 with the bag on the front surface of the bag bundle 90 set on the track. Therefore, when the bags 91 of the bag bundle 90 are cut and separated one after another to be in the mode as shown in FIG. 2C, the bag bundle 90 is pushed from the back side and the bag on the front surface of the bag bundle 90 is determined. It was set to the position. On the other hand, in the bag opening portion 15, even if the front surface of the bag bundle 90 is retracted, the telescopic arm 160 is extended by that amount, so that the above problems can be avoided.

  It should be noted that the intermediate arm 154 and the tip arm 155 have a posture in which the lever arm 153 shown in FIGS. 5A and 5F, the intermediate arm 154, and the tip arm 155 are substantially linear (initial state). ), The front bag piece 91a of the bag 91 is pulled toward the front side, so that the bag 91 is adjusted so as not to be cut and separated from the bag bundle 90.

  The above two effects are effects common to other embodiments described below.

<1-3. Item storage operation>
Next, the article accommodation operation will be described with reference to FIG. As shown in FIG. 6A, when the bag opening portion 15 is operated to open the bag 91, the article insertion opening 16 is provided so as to be disposed on the bag mouth height side of the bag mouth 91d. . When the article 80 is loaded through the article loading opening 16, the loaded article 80 is housed inside the bag 91 as shown in FIG. 6B.

  At this time, the bag 91 is pressed downward from the article 80. Due to this force, the bag 91 is cut and separated from the bag bundle 90 and drops, as shown in FIG. 6C. After that, as shown in FIG. 6D, the lever arm 153, the intermediate arm 154, and the tip arm 155 rotate so that the lever arm 153, the intermediate arm 154, and the tip arm 155 are substantially linear. Return to the posture of the upper position.

  Then, as described with reference to FIG. 5, the lever arm 153 is rotated again to open the bag 91, and the article 80 is loaded from the article loading opening 16. By repeating the above, the bagging operation of the articles 80 becomes easy.

<1-4. Advantages of bag holding unit 11>
Next, the advantages of the bag holding unit 11 will be described with reference to FIG. 7. As shown in FIG. 7A, the guide plate 71 that constitutes the conventional bag holding unit 70 is not bent or curved, and has a straight shape. The guide plate 71 guides the bag bundle 90 in a straight manner. When the bag mouth of the bag 91 at the leading end in the stacking direction of the bag bundle 90 having such a guide mode is widened, the tip arm 155 moves in the stacking direction of the bag bundle 90 (direction of arrow F).

  As shown in the plan view of FIG. 7B in which only the bag 91 is viewed from above, when the bag mouth 91d of the bag 91 held by the conventional bag holding portion 70 is widened by the tip arm 155, the front bag piece 91a is used. From the beginning of opening, the force is applied to the entire back bag piece 91b including the separation line 91e in the stacking direction of the bag bundle 90 (direction of arrow F). That is, when the front arm 155 applies a predetermined force to the front bag piece 91a in the front vertical direction of the bag 91, the separation line 91e also immediately receives the predetermined force in the same direction. Then, when a predetermined force is applied to the bag bottom side in the bag height direction or to the front of the bag 91 in the bag stacking direction, the bag 91 is formed so as to be cut and separated from the bag bundle 90 along the separation line 91e. Therefore, when the bag mouth 91d of the bag 91 held by the conventional bag holding unit 70 is widened by the tip arm 155, the separation line 91e is broken and the bag 91 is easily separated from the bag bundle 90.

  In the article storage device 1 of the present invention, as described with reference to FIG. 5, the bag 91 is intended to be separated from the bag bundle 90 by the impact force caused by the falling of the article 80, but the conventional bag holding portion 70 is used. However, the tip arm 155 is often separated when the bag mouth of the bag 91 is widened.

  On the other hand, as shown in FIG. 7C, the bag bundle 90 attached to the bag holder 11 according to the embodiment of the present invention has a bag holder 90 with both ends of the bag bundle 90 facing toward the leading side in the stacking direction. Held in.

  As shown in the plan view of the bag 91 of FIG. 7D, when the bag mouth 91d of the bag 91 held by the bag holding portion 11 is widened by the tip arm 155, the front bag piece 91a starts to open. At the first stage, no force is applied to the separation line 91e in the stacking direction of the bag bundle 90 (direction of arrow F) (state G1). This is because the back bag piece 91b is in a bent state. The front end arm 155 further moves the front bag piece 91a in the stacking direction of the bag bundle 90 (direction of arrow F), and even if the front bag piece 91a crosses the straight line H connecting both ends of the front bag piece 91a, the separation line 91e does not appear. No force is applied in the stacking direction of the bag bundle 90 (direction of arrow F) (state G2).

  Further, even if the front end arm 155 further moves the front bag piece 91a in the stacking direction of the bag bundle 90 (direction of arrow F) and the straight bag H crosses the front bag piece 91a, a curved line J representing the back bag piece 91b is formed. A force is not applied to the separating line 91e in the stacking direction of the bag bundle 90 (direction of arrow F) until the front bag piece 91a exceeds the curved line I which is inverted about the straight line H (state G3). When the front bag piece 91a exceeds the curved line I, a force is also applied to the separation line 91e in the stacking direction of the bag bundle 90 (direction of arrow F) (state G4).

  As described above, when the bag mouth 91d of the bag 91 held by the bag holding unit 11 is widened by the tip arm 155, the tip arm 155 keeps the tip arm 155 in a predetermined state until the force enough to cut the separation line 91e is applied from the tip arm 155. It is necessary to move the amount of movement. Even if the tip arm 155 stops moving, the bag 91 is adjusted so as not to exert a force enough to break the separation line 91e.

  As described above, in the case of the conventional bag holding portion 70, since the separation line 91e was exerted with force from the stage of starting to open the bag mouth 91d of the bag 91 to be held, the separation line 91e was easily cut. On the other hand, in the case of the bag holding portion 11, even if the bag mouth 91d of the bag 91 to be held is widened to some extent, no force is applied to the separation line 91e, and the separation line 91e cannot be cut. Further, in the case of the conventional bag holding unit 70, when the bag mouth 91d is widened to the extent that the separation line 91e of the bag 91 to be held is not broken, the opening area of the bag mouth 91d is small. On the other hand, in the case of the bag holding portion 11, when the bag mouth 91d is widened to the extent that the separation line 91e of the bag 91 to be held is not cut, the opening area of the bag mouth 91d is considerably larger than that of the conventional holding portion 70. can do.

<2. Second Embodiment>
Next, with reference to FIG. 8, an article storage device 2 according to another embodiment of the present invention will be described. The article storage device 2 has a structure similar to that of the article storage device 1 in the bag opening portion, but the operation of opening the bag is different. Other than that, the article storage device 2 is substantially the same as the article storage device 1. Therefore, each part of the article storage device 2 will be described using the same reference numerals as those of the article storage device 1.

  Before operating the bag opening section 25 of the article housing device 2, the article housing device 2 has the retractable arm 160 (the lever arm 153 and the intermediate arm 154) and the tip arm 155 as shown in FIG. 8A. The telescopic arm 160 (lever arm 153 and intermediate arm 154) and the tip arm 155 are held so as to maintain the posture in a substantially straight line form. When operating the bag opening portion 25, the lever arm 153 is rotated counterclockwise (direction of arrow E) around the fixed shaft 151 as a center point.

  When the lever arm 153 is rotated counterclockwise (direction of arrow F) around the fixed shaft 151 as a center point, as shown in FIG. 8B, the intermediate arm 154 and the front end arm 155 have the fixed shaft 151 as a center point. Together, they rotate and rotate toward the contact surface 125. Along with this, the lever arm 153, the intermediate arm 154, and the tip arm 155 are gradually bent in the traveling direction.

  When the lever arm 153 is further rotated about the fixed shaft 151 as a center point, the tip arm 155 contacts the contact surface 125, as shown in FIG. 8C. When the tip arm 155 comes into contact with the contact surface 125, the tip arm 155 rotates about the shaft 157 and the entire surface of the tip arm 155 comes into contact with the contact surface 125. When the tip arm 155 comes into contact with the contact surface 125, the tip arm 155 rotates about the shaft 157 and the entire surface of the tip arm 155 comes into contact with the contact surface 125.

  Then, as shown in FIG. 8D, the tip arm 155 moves toward the bag bottom side in the bag height direction along the contact surface 125. 8C and 8D, the tip arm 155 is in contact with a portion of the contact surface 125 where the pressing member 129 (see FIG. 4) is arranged, but this is an example. However, the present invention is not limited to this. The part on the contact surface 125 to which the tip arm 155 is initially moved can be appropriately changed.

  Along with the movement of the tip arm 155, the lever arm 153 and the intermediate arm 154 that form the telescopic arm 160 receive the reaction force from the contact surface 125 so that the telescopic arm linear distance is shortened. In the state shown in FIG. 8C, the telescopic arm linear distance is the distance L2. When the tip arm 155 moves to the state shown in FIG. 8D, the lever arm 153 and the intermediate arm 154 are further bent, and the telescopic arm linear distance becomes the distance L3 (<L2). That is, the lever arm 153 and the intermediate arm 154 increase the degree of bending, and shorten the telescopic arm linear distance.

  Then, when the lever arm 153 is further rotated counterclockwise around the fixed shaft 151, the tip arm 155 contacts the contact surface 125 (the front surface of the pressing member 129) and the contact surface 125 (pressing member 129). The front of the bag) and move to the bag bottom side in the bag height direction. In the process, as shown in FIG. 8E, the tip arm 155 enters the inside of the bag 91 via the bag mouth 91d.

  On the other hand, the lever arm 153 and the intermediate arm 154 expand / contract the telescopic arm linear distance according to the reaction force that the tip arm 155 receives from the contact surface 125 (the front surface of the pressing member 129). Then, as the lever arm 153 rotates, the intermediate arm 154 enters the inner part of the bag 91 together with the tip arm 155 via the bag mouth 91d as shown in FIG. 8 (e).

  The lever arm 153 and the intermediate arm 154 operate so as to rotate around the shaft 156 as they enter the inside of the bag 91 to extend the telescopic arm linear distance. At the same time, as the lever arm 153 rotates in the direction away from the bag 91, the tip arm 155 gradually rotates around the shaft 157 so as to separate from the inner surface of the back bag piece 91b and moves away from the bag 91. Move to. Further, as the lever arm 153 rotates in the direction away from the bag 91, the intermediate arm 154 also moves in the direction away from the bag 91.

  By the operations of the intermediate arm 154 and the tip arm 155 as described above, the front bag piece 91a is pulled from the inside of the bag 91 in the direction in which the bag mouth 91d expands. Finally, the lever arm 153, the intermediate arm 154, and the tip arm 155 operate so as to return to a substantially linear posture (initial state) as shown in FIG. To do. As a result, the bag mouth 91d is wide open.

  Similarly to the case of the bag opening part 15, the bag opening part 25 can disperse the force applied to the bag 91 when the bag mouth 91d is widened, and reduce the force applied to the separation line 91e of the bag 91. Can be made. This can prevent the bag 91 from being cut and separated from the separation line 91e in the process of expanding the bag mouth 91d.

  It should be noted that the intermediate arm 154 and the tip arm 155 have a posture in which the lever arm 153 shown in FIGS. 8A and 8F, the intermediate arm 154, and the tip arm 155 are substantially linear (initial state). ), The front bag piece 91a of the bag 91 is pulled toward the front side, so that the bag 91 is adjusted so as not to be cut and separated from the bag bundle 90.

<3. Third Embodiment>
Next, an article storage device 3 according to another embodiment of the present invention will be described with reference to FIG. The difference between the article storage device 3 and the article storage device 1 is the structure of the telescopic arm. The rest of the structure is the same as that of the article storage device 1, and the article storage device 3 has already been described above. Therefore, the description thereof is omitted. Further, the same structure as the article storage device 1 will be described using the same reference numerals as those used in the article storage device 1.

  The telescopic arm 30 in the article storage device 3 has a telescopic structure capable of expanding and contracting the linear distance of the telescopic arm similarly to the telescopic arm 160 in the article storage device 1, but the telescopic structure is different.

  The telescopic structure of the telescopic arm 30 is configured by, for example, an elastic arm 31 at least a part of which is formed of an elastic body. As shown in FIG. 9A, the elastic arm 31 includes, for example, a lever portion 32 and an elastic portion 33. The elastic arm 31 is pivotally attached to the fixed shaft 151 at the boundary between the lever portion 32 and the elastic portion 33. Further, one end of the elastic arm 31 is pivotally attached to one end of the tip arm 155 via a shaft 157.

  The lever portion 32 is a portion that receives a rotational movement of the elastic arm 31. A force is applied to the lever portion 32 by hand or the like to rotate the elastic arm 31.

  The elastic portion 33 is a part of an elastic arm formed of an elastic body. One end of the elastic portion 33 is pivotally attached to one end of the tip arm 155 via a shaft 157. Examples of the elastic body include, for example, a material such as an elastomer having rubber elasticity and the spring 34 as shown in FIG. 9B. However, the elastic body is not limited to this, and all other elastic bodies are included in the present invention. include.

  Here, with reference to FIG. 10, the operation of the bag opening portion 35 in a mode in which the telescopic arm 160 is replaced with the elastic arm 31 which is an example of the telescopic arm 30 will be described. Before the bag opening portion 35 is operated, as shown in FIG. 10A, the elastic arm 31 and the tip arm 155 are maintained so that the elastic arm 31 and the tip arm 155 maintain a substantially linear posture. 155 is retained.

  As shown in FIG. 10B, when the lever portion 32 is rotated clockwise around the fixed shaft 151, both the elastic portion 33 and the tip arm 155 move toward the bag mouth in the bag height direction. To do.

  As shown in FIG. 10C, when the lever portion 32 is further rotated around the fixed shaft 151 as a center point, the tip arm 155 moves further upward (bag height direction bag mouth side) and abuts. Abut the surface 125. When the tip arm 155 comes into contact with the contact surface 125, the tip arm 155 rotates about the shaft 157 and the entire surface of the tip arm 155 comes into contact with the contact surface 125. At the same time, the elastic portion 33 exerts the function of the telescopic arm 30. That is, as shown in FIG. 10C, the elastic portion 33 is bent so as to be curved upward (the bag height direction bag mouth side) by the elastic force. Thereby, the elastic portion 33 shortens the linear distance of the telescopic arm.

  Then, as shown in FIG. 10D, the tip arm 155 moves toward the bag bottom side in the bag height direction along the contact surface 125. 10C, the tip arm 155 is in contact with the portion of the contact surface 125 where the extension piece 91c is arranged, but this is an example, and the present invention is not limited to this. The part on the contact surface 125 to which the tip arm 155 is initially moved can be appropriately changed.

  The tip arm 155 may be directly moved to the bag mouth 91d without being brought into contact with the contact surface 125. In this case, the tip arm 155 once comes into contact with the inner surface of the back bag piece 91b inside the bag 91 and moves to the bag bottom side in the bag height direction.

  Next, when the lever portion 32 is released or rotated backward from the state in FIG. 10C, the elastic portion 33 rotates counterclockwise (in the direction of arrow F) around the fixed shaft 151, and the tip arm 155. Contacts the contact surface 125 (the front surface of the extension piece 91c) and moves along the contact surface 125 (the front surface of the extension piece 91c) toward the bag bottom in the bag height direction. In the process, as shown in FIG. 10D, the tip arm 155 enters the inside of the bag 91 via the bag mouth 91d. On the other hand, in the process of shifting from the state of FIG. 10C to the state of FIG. The elastic linear deformation is performed so as to restore the shape of and the linear distance of the telescopic arm is gradually extended.

  Then, as the lever portion 32 rotates counterclockwise, the elastic portion 33 enters the inside of the bag 91 via the bag mouth 91d together with the tip arm 155, as shown in FIG. 10 (e). . The elastic portion 33 further elastically restores and deforms as it enters the inside of the bag 91 to extend the linear distance of the telescopic arm. At the same time, as the lever portion 32 rotates counterclockwise, the tip arm 155 gradually rotates around the shaft 157 so as to separate from the inner surface of the back bag piece 91b, and moves away from the bag 91. Moving. Further, as the lever portion 32 rotates counterclockwise, the elastic portion 33 also moves in a direction away from the bag 91.

  By the operations of the elastic arm 31 and the tip arm 155 as described above, the front bag piece 91a is pulled from the inside of the bag 91 in the direction in which the bag mouth 91d expands. Finally, the elastic arm 31 and the tip arm 155 operate so as to return to the posture (initial state) in a substantially linear manner as shown in FIG. As a result, the bag mouth 91d is greatly expanded.

  Similarly to the case of the bag opening portion 15, the bag opening portion 35 can disperse the force applied to the bag 91 when the bag mouth 91d is widened, and reduce the force applied to the separation line 91e of the bag 91. Can be made. This can prevent the bag 91 from being cut and separated from the separation line 91e in the process of expanding the bag mouth 91d.

  When the elastic arm 31 and the tip arm 155 are in the posture (initial state) in which the elastic arm 31 and the tip arm 155 shown in FIGS. 10A and 10F are substantially linear, By pulling the front bag piece 91a of the bag 91 toward the front side, the bag 91 is adjusted so as to have a force that does not cut or separate from the bag bundle 90.

  <4. Fourth Embodiment>

  Next, with reference to FIG. 11, an article storage device 4 according to another embodiment of the present invention will be described. The difference between the article storage device 4 and the article storage device 1 is the structure of the telescopic arm. Other than that, the article storage device 4 has the same structure as the article storage device 1 and has already been described above, and therefore description thereof will be omitted. Further, the same structure as the article storage device 1 will be described using the same reference numerals as those used in the article storage device 1.

  The telescopic arm 40 in the article housing device 4 has an telescopic structure capable of expanding and contracting the linear distance of the telescopic arm similar to the telescopic arm 160 in the article housing device 1, but the telescopic structure is different.

The expansion / contraction mechanism of the expansion / contraction arm 40 is configured by, for example, a sliding arm 41 that is slidable in the length direction of itself. As shown in FIG. 11, the sliding arm 41 includes, for example, a lever portion 42, a pair of piston member 43 and a cylinder member 44.
The sliding arm 41 is pivotally attached to the fixed shaft 151 at the boundary between the lever portion 42 and the pair of piston member 43 and cylinder member 44. Further, one end of the sliding arm 41 is pivotally attached to one end of the tip arm 155 via a shaft 157.

  The lever portion 42 is a portion that receives a rotational movement of the sliding arm 41. The sliding arm 41 is rotated by applying a force to the lever portion 42 by hand or the like. The piston member 43 is held inside the cylinder member 44 so as to be slidable in its length direction.

  One end of the piston member 43 is axially attached to one end of the tip arm 155 via a shaft 157. The positions of the piston member 43 and the cylinder member 44 may be exchanged, and one end of the cylinder member 44 may be pivotally attached to one end of the tip arm 155 via the shaft 157.

  The sliding arm 41 that can slide in its own length direction can be realized by various types. That is, the sliding arm 41 can be realized by, for example, an electric cylinder system, a hydraulic cylinder system, an air cylinder system, or any other known actuator that is slidable in its own length direction. Here, with reference to FIG. 12, the operation of the bag opening portion 45 in which the telescopic arm 160 is replaced with the sliding arm 41 which is an example of the telescopic arm 40 will be described. Before operating the bag opening portion 45, as shown in FIG. 12A, the sliding arm 41 and the tip arm 155 are arranged so as to maintain the posture in a substantially linear manner. The tip arm 155 is held.

  As shown in FIG. 12B, when the lever portion 42 is rotated clockwise around the fixed shaft 151 as a center point, the pair of piston member 43 and cylinder member 44, and the tip arm 155 are all in the bag height. Move toward the bag mouth side.

  As shown in FIG. 12C, when the lever portion 42 is further rotated around the fixed shaft 151 as a center point, the tip arm 155 moves further upward (bag height direction bag mouth side) and abuts. Abut the surface 125. When the tip arm 155 comes into contact with the contact surface 125, the tip arm 155 rotates about the shaft 157 and the entire surface of the tip arm 155 comes into contact with the contact surface 125. At the same time, the pair of piston member 43 and cylinder member 44 exert the function as the telescopic arm 40. That is, the pair of piston member 43 and cylinder member 44 slide toward the inside of the cylinder member 44, as shown in FIG. As a result, the pair of piston member 43 and cylinder member 44 reduces the linear distance of the telescopic arm.

  Then, as shown in FIG. 12D, the tip arm 155 moves toward the bag bottom side in the bag height direction along the contact surface 125. 12C, the tip arm 155 is in contact with the portion of the contact surface 125 where the extension piece 91c is arranged, but this is an example, and the present invention is not limited to this. The part on the contact surface 125 to which the tip arm 155 is initially moved can be appropriately changed.

  The tip arm 155 may be directly moved to the bag mouth 91d without being brought into contact with the contact surface 125. In this case, the tip arm 155 once comes into contact with the inner surface of the back bag piece 91b inside the bag 91 and moves to the bag bottom side in the bag height direction.

  Next, when the lever portion 32 is released or rotated backward from the state in FIG. 12C, the pair of piston member 43 and cylinder member 44 move counterclockwise (direction of arrow F) around the fixed shaft 151. The tip arm 155 rotates to contact the contact surface 125 (front surface of the extension piece 91c) and move along the contact surface 125 (front surface of the extension piece 91c) toward the bag bottom in the bag height direction. In the process, as shown in FIG. 12D, the tip arm 155 enters the inside of the bag 91 via the bag mouth 91d. On the other hand, in the process of shifting from the state of FIG. 12 (c) to the state of FIG. 12 (d), the pair of piston members 43 and cylinder members 44 are received by the tip arms 155 from the contact surface 125 (the front surface of the extension piece 91c). In response to the reaction force, the piston member 43 slides toward the outside of the cylinder member 44 to gradually extend the linear distance of the telescopic arm.

  Then, as the lever portion 42 rotates in the counterclockwise direction, the pair of piston member 43 and the cylinder member 44, together with the distal end arm 155, pass through the bag mouth 91d as shown in FIG. 12 (e). It goes deep inside 91. As the pair of the piston member 43 and the cylinder member 44 enter the inside of the bag 91, the piston member 43 further slides toward the outside of the cylinder member 44 to extend the linear distance of the telescopic arm. At the same time, according to the counterclockwise rotation of the lever portion 42, the tip arm 155 gradually rotates around the shaft 157 so as to separate from the inner surface of the back bag piece 91b, and moves away from the bag 91. Moving. Further, as the lever portion 42 rotates counterclockwise, the pair of piston member 43 and cylinder member 44 also move in a direction away from the bag 91.

  By the operations of the sliding arm 41 (the pair of piston member 43 and the cylinder member 44) and the tip arm 155 as described above, the front bag piece 91a is pulled from the inside of the bag 91 in the direction in which the bag mouth 91d expands. Finally, the sliding arm 41 (the pair of piston member 43 and the cylinder member 44) and the tip arm 155 are in a substantially linear posture (initial state) as shown in FIG. ) To work. As a result, the bag mouth 91d is greatly expanded.

  Similarly to the case of the bag opening part 15, the bag opening part 45 can disperse the force applied to the bag 91 when the bag mouth 91d is widened, and reduce the force applied to the separation line 91e of the bag 91. Can be made. This can prevent the bag 91 from being cut and separated from the separation line 91e in the process of expanding the bag mouth 91d.

  The sliding arm 41 (a pair of piston member 43 and a cylinder member 44) and the tip arm 155 are the same as the sliding arm 41 (a pair of piston member 43 and the cylinder shown in FIGS. 12A and 12F). When the member 44) and the tip arm 155 are in a substantially linear posture (initial state), the bag 91 is cut from the bag bundle 90 by pulling the front bag piece 91a of the bag 91 toward the front side.・ Adjust it so that it does not separate.

  The operation of the bag opening part 45 in a mode in which the telescopic arm 160 is replaced with the sliding arm 41, which is an example of the telescopic arm 40, is performed except that the bag opening / closing part 45 slides in the length direction of itself to perform the telescopic operation. Since the description can be made following the description of 15 to 35, the description thereof will be omitted.

<5. Fifth Embodiment>
Next, with reference to FIG. 13, an article storage device 5 according to another embodiment of the present invention will be described. The article storage device 5 is a product in which the guide plate 121 of the article storage device 1 is replaced with a guide plate 521. As shown in FIG. 13 (b), the guide plate 521 engages with the rearmost surface of the bag bundle 90 in the stacking direction of the bags, so that the bag bundle 90 is closer to the center of the bag bundle 90 in the width direction. It guides so that the vicinity of both ends in the width direction is convex.

  As shown in FIG. 13 (a), the guide plate 521 is curved forward in the direction perpendicular to the plane of the plate-shaped member as it goes from the center line 524 that constitutes the center portion of the plate-shaped member in the width direction to both ends of the plate-shaped member in the width direction. It has a shape that

<6. Sixth Embodiment>
With reference to FIG. 14, an article storage device 6 according to another embodiment of the present invention will be described. The article storage device 6 is a product in which the guide plate 121 in the article storage device 1 is replaced with a guide plate 621. As shown in FIG. 14A, the guide plate 621 has a shape that bends forward in the front vertical direction of the plate-shaped member as it advances from the central piece 624 that constitutes the vicinity of the center of the plate-shaped member in the width direction to both ends in the width direction. ing. This point of the guide plate 621 is similar to the guide plate 121, but the difference is in the region for guiding the bag bundle 90.

  As shown in FIG. 14 (b), the guide plate 621 is located near the center of the bag bundle 90 in the width direction at the bag height direction bag mouth side end (for example, a region corresponding to the spare piece 91 g of the bag bundle 90). In comparison, the bag bundle 90 is guided so that the vicinity of both ends in the width direction of the bag bundle 90 is convex toward the leading side in the stacking direction of the bags. In this sense, the guide plate 621 may be referred to as the bag mouth side guide plate 621. This point is different from the guide plate 121. The end portion on the bag mouth side in the bag height direction is not limited to the area corresponding to the spare piece 91g of the bag bundle 90, and the extended piece 91c area including the spare piece 91f or the back bag piece. It may reach up to a region including the vicinity of the end of 91b on the bag mouth side in the height direction. Further, the end portion on the bag height direction bag mouth side may be a region on the height direction bag mouth side with respect to a region corresponding to the spare piece 91g of the bag bundle 90.

  Further, a guide plate 623 as shown in FIG. 14B may be separately provided in addition to the guide plate 621. The guide plate 623 is similar to the guide plate 621 in the aspect, but is used in a different place. In other words, the guide plate 623 is compared with the vicinity of the center of the bag bundle 90 in the width direction at any position from the vicinity of the center in the bag height direction to the end on the opposite side of the bag mouth 91d (bag bottom 91h). The bag bundle 90 is guided so that the vicinity of both ends in the width direction is convex toward the front side in the stacking direction of the bags. In this sense, the guide plate 623 may be referred to as a non-bag opening side guide plate 623 (bag bottom side guide plate 623). Although the height in the bag height direction guided by the guide plate 623 in FIG. 14B is the same as the height in the guide plate 621, the height is not limited to this and is different. May be.

  As shown in FIG. 14C, the guide plate 621 may be further provided with an auxiliary plate 622. The auxiliary plate 622 is a plate-shaped member extending from the end of the guide plate 621 on the bag bottom side in the height direction toward the bag bottom side in the height direction. The auxiliary plate 622 has the same width as the center piece 624 near the center of the guide plate 621 in the width direction, and extends from the end of the center piece 624 of the guide plate 621 on the bag bottom side in the height direction to the bag bottom side in the height direction. It is preferable that the embodiment be extended.

  When the bag opening portion 15 performs the operation of expanding the bag mouth 91d of the leading bag 91 of the bag bundle 90 held as shown in FIG. 14B, the bag bundle 90 is moved to the rearmost side in the stacking direction. There is a moment when the arm 155 is pushed (see FIG. 5 (e)). In this case, the bag bundle 90 moves to the rearmost side in the stacking direction. As a result, the bag bundle 90 may swing and the bag opening portion 15 may not allow the tip arm 155 to enter the bag mouth 91d, and the bag mouth 91d of the leading bag 91 of the bag bundle 90 may not be opened. In order to prevent such a situation, it is preferable to provide the auxiliary plate 622.

  As shown in FIG. 14D, when the bag bundle 90 is attached to the guide plate 621 provided with the auxiliary plate 622, even if the bag bundle 90 is pushed toward the rearmost side in the stacking direction by the tip arm 155, the bag bundle 90 is not removed. Do not escape to the rearmost side in the stacking direction. As a result, the bag opening portion 15 can surely widen the bag opening 91d of the leading bag 91 of the bag bundle 90.

<7. Seventh embodiment>
With reference to FIG. 15, an article storage device 7 according to another embodiment of the present invention will be described. The article storage device 7 is provided with biasing members 701 and 702 on the back surface of a guide plate 721 corresponding to the guide plate 121 in the article storage device 1. The guide plate 721 is substantially the same as the guide plate 121, and since the guide plate 121 has already been described, the description thereof will be omitted.

  Between the back surface of the guide plate 721 and the upright portion 123, biasing members 701 and 702 extending in the front-rear direction of the central piece 724 of the guide plate 721 (the stacking direction of the bag bundle 90) are provided. The guide plate 721 is pushed by the biasing members 701 and 702 to the front side in the front-rear direction of the central piece 724 of the guide plate 721 (the leading side in the stacking direction of the bag bundle 90). As the urging members 701 and 702, a coil spring is shown in FIG. 15B, but the urging members 701 and 702 are not limited to this, and other spring members such as a leaf spring or the center of the guide plate 721 from the standing portion 123. It may be an elastic member that exerts a pushing force in the direction toward the front side in the front-rear direction of the piece 724 (the leading side in the stacking direction of the bag bundle 90).

  One ends of the biasing members 701 and 702 are connected to the back surface side of the central piece 724 of the guide plate 721, as shown in FIG. The other ends of the biasing members 701 and 702 are connected to the front surface of the standing portion 123.

  Further, the L-shaped member 13a that constitutes the attachment portion 13 is provided on the front surface of the standing portion 123 (the front surface in the stacking direction of the bag bundle 90). Then, the L-shaped member 13a is provided with an upright portion 13b which is upright in a front vertical direction (a stacking direction of the bag bundle 90) perpendicular to the front surface of the upright portion 123, and an end of the upright portion 13b. An upright portion 13c is provided upright on the bag mouth side in the bag height direction. It is assumed that the urging members 701 and 702 are arranged, for example, so as to surround the outer periphery of the standing portion 13b, but the present invention is not limited to this, and the urging members 701 and 702 may be arranged at other positions. It may be.

  The guide plate 721 is provided with a mounting hole (not shown). The guide plate 721 is attached to the attachment hole through the L-shaped member 13a.

  The L-shaped member 13a is passed through the mounting hole 92 of the bag bundle 90, and the bag bundle 90 is set on the guide plate 721. In this case, the bag bundle 90 is sandwiched between the guide plate 721 and the standing portion 13c of the L-shaped member 13a. Here, it is assumed that after the bag opening 91d of the leading bag 91 of the bag bundle 90 is opened by the bag opening portion 15, the article is loaded and the bag 91 is separated. In this case, a gap is formed between the guide plate 721 and the upright portion 13c by the amount of the separated bag 91, but the biasing members 701 and 702 move the central piece 724 of the guide plate 721 to the leading side in the stacking direction of the bag bundle 90. Since it is pushed to, the guide plate 721 moves to the leading side in the stacking direction. Along with this, the bag bundle 90 is pushed by the guide plate 721 and moves toward the leading side in the stacking direction of the bag bundle 90. As a result, the leading position of the bags 91 of the bag bundle 90 can always be kept at the same position.

<8. Eighth embodiment>
With reference to FIG. 16, an article storage device 8 according to another embodiment of the present invention will be described. The article storage device 8 includes biasing members 801 to 804 provided on the back surface of a guide plate 820 corresponding to the guide plate 121 in the article storage device 1.

  As shown in FIG. 16A, the guide plate 820 is formed by separating the guide plate 121 into three pieces, and includes guide pieces 821 to 823. The guide piece 821 corresponds to the central piece 124 of the guide plate 121. The guide pieces 822 and 823 spread from the guide piece 821 toward both ends in the width direction of the guide piece 821 and toward the front side in the front-rear direction of the guide piece 821.

  As shown in FIG. 16A, urging members 801 and 802 extending in the front-rear direction of the guide piece 821 are provided between the rear surface of the guide piece 821 and the standing portion 123. The biasing members 801 and 802 are provided in the width direction of the guide piece 821 while being separated by a predetermined distance. A biasing member 803 extending in the bag stacking direction is provided between the back surface of the guide piece 822 and the upright portion 123. A biasing member 804 extending in the bag stacking direction is provided between the back surface of the guide piece 823 and the standing portion 123.

  The guide piece 821 is pushed by the biasing members 801 and 802 to the front side in the front-rear direction (leading side in the bag stacking direction) of the guide piece 821, and the front side in the front-rear direction of the guide piece 821 (the bag stacking direction) from the guide pieces 822 and 823. It is placed on the front side). When the bag bundle 90 is attached to the guide plate 721 shown in FIG. 13, the bag bundle 90 is held by hand, and the bag bundle 90 is attached to the attachment portion 13 arranged on the bag mouth side of the central piece 724 in the bag height direction. In this case, the guide pieces 722 and 723 forming the convex portions on both sides of the central piece 724 interfere with each other, and it is difficult to attach the bag bundle 90 by hand. In order to solve such a problem, the guide piece 821 is arranged in front of the guide piece 821 in front of and behind the guide pieces 822 and 823. In such an embodiment, when the bag bundle 90 is attached by hand, the guide pieces 822 and 823 forming the convex portions on both sides of the central piece 824 do not interfere with the attachment of the bag bundle 90.

  When the bag bundle 90 is attached to the guide plate 820 having the above-described configuration, the guide pieces 821 are arranged by the biasing members 801 and 802 in front of the guide pieces 822 and 823 in front of and in the front-rear direction. In this state, the bag bundle 90 is attached to the guide piece 821 by the attaching portion 13.

  After that, the pressing member 129 described with reference to FIG. 4 pushes the vicinity of the bag mouth in the bag height direction toward the rearmost surface of the bag bundle 90 in the stacking direction, as shown in FIG. 16A. Then, as shown in FIG. 16B, the bag bundle 90 is pushed by the pressing member 129 toward the rearmost surface of the bag bundle 90 in the stacking direction, and the biasing members 801 and 802 contract. As a result, the rearmost surface of the bag bundle 90 comes into contact with the trailing guide surface of the guide plate 820 and is guided.

  The movement mode of the guide piece 821 in the front-back direction (bag stacking direction) is not limited to the movement mode of the biasing members 801 and 802. The movement mode of the guide piece 821 in the front-back direction (bag stacking direction) includes all known movement modes.

<9. Ninth embodiment>
With reference to FIG. 17, an article storage device 9 according to another embodiment of the present invention will be described. The article storage device 9 is a product in which the guide plate 121 of the article storage device 1 is replaced with a guide plate 921. As shown in FIG. 17A, the guide plate 921 has a shape that bends forward in the front vertical direction of the plate-shaped member as it advances from the central piece 924 that constitutes the width-direction central portion of the plate-shaped member to both ends in the width direction. ing. This point of the guide plate 921 is similar to the guide plate 121, but the difference will be described below.

  In the guide plates of the article accommodating devices 1 to 4, the guide plate is arranged on the rearmost side of the bag bundle 90 in the stacking direction. On the other hand, as shown in FIG. 17B, the guide plate 921 in the article storage device 9 is arranged on the leading surface side of the bag bundle 90 in the stacking direction, and compared with the vicinity of the center of the bag bundle 90 in the width direction. It guides so that the vicinity of both ends in the width direction of 90 is convex toward the leading side in the stacking direction. In other words, the guide plate 921 guides the leading side guide surface 921a so that the leading side surface of the bag bundle 90 in the stacking direction is brought into contact with the leading side so as to be convex.

  Further, the attachment portion 93 for attaching the bag bundle 90 to the guide plate 921 is provided on the back side of the guide plate 921. Regarding the mounting portion 93, the description of the mounting portion 13 described above also applies to the mounting portion 93 as it is.

<10. Tenth Embodiment>
With reference to FIG. 18, an article storage device 10 according to another embodiment of the present invention will be described. The article storage device 10 is a product in which the guide plate 121 in the article storage device 1 is replaced with a guide plate 1210. As shown in FIG. 18A, the guide plate 1210 has a structure that can be attached to and detached from the upright portion 123 (bag holding portion 11). The guide plate 1210 has, for example, as shown in FIG. 18A, a shape similar to the guide plate 621 and the auxiliary plate 622 described with reference to FIG.

  The difference between the two is the mode of the guide plate 621 and the guide plate 1210. Unlike the guide plate 621, the guide plate 1210 is detachable from the upright portion 123. That is, the guide plate 1210 is provided with an engaged portion 1211 that is engageable with the engaging portion 123d provided on the front surface of the standing portion 123 near the center of the end portion of the bag 90 on the bag mouth side in the height direction. The engaging portion 123d and the engaged portion 1211 have a structure that can be easily attached and detached.

  As shown in FIG. 18A, it is assumed that the engaging portion 123d is configured by, for example, a J-shaped hook member that extends in the width direction of the upright portion 123. In this case, the engaged portion 1211 is provided on the central piece 1212 arranged at the center of the guide plate 1210 in the width direction. The engaged portion 1211 is formed, for example, in the vicinity of the height direction bag mouth side end of the bag 90 of the central piece 1212 and at both ends in the width direction of the central piece 1212 so as to be caught by the J-shaped hook member. An inverted L-shaped portion is assumed as an example. The inverted L-shaped portion is formed by hollowing out the central piece 1212 near the end in the height direction of the bag 90 of the central piece 1212 and near the center in the width direction of the central piece 1212. The above-described aspects of the engaging portion 123d and the engaged portion 1211 are merely examples, and the present invention is not limited to the above-described aspects, and all other known and engageable aspects are included in the present invention.

  According to the guide plate 1210 as described above, when the bag bundle 90 is set in the article storage device 10, as shown in FIG. 18B, the bag is directly attached to the guide plate 1210 removed from the upright portion 123. Attach the bundle 90. 18 (a) to 18 (c), the bag bundle 90 has one mounting hole, but the embodiment of such a bag bundle 90 is also included in the present invention. Then, as shown in FIG. 18C, the engaged portion 1211 of the guide plate 1210 to which the bag bundle 90 is attached is engaged with the engaging portion 123d.

  When the bag bundle 90 is attached with the guide plate 1210 fixed to the article accommodating device as in the conventional case, the guide pieces 1213 and 1214 forming the convex portions on both sides of the central piece 1212 interfere with each other to bundle the bag bundle. It was hard to attach 90 by hand. As described above, since the guide plate 1210 is detachable from the upright portion 123, the bag bundle 90 can be easily attached to the guide plate 1210.

  Note that FIG. 18 shows a mode in which not only the guide plate 1210 but also an auxiliary plate 1215 as shown in FIGS. 13C and 13D is provided, but in the present invention, the guide plate 1210 is shown. Only the mode may be used, or the guide plate 1210 may be provided with the auxiliary plate 1215.

<11. Eleventh Embodiment>
With reference to FIG. 19, an article storage device 20 according to another embodiment of the present invention will be described. The article storage device 20 is one in which the recess 21 is provided in the guide plate 121 of the article storage device 1. The recess 21 is provided in the central piece 124 of the guide plate 121, for example, as shown in FIG. Further, the recess 21 is recessed in such a manner as to be convex toward the rearmost side in the bag stacking direction, as shown in FIG. 19B, for example.

  As shown in FIG. 19 (b), when the bag bundle 90 is to be attached to the guide plate 121, the recess 21 needs to be in a form that extends over the bag mouth 91 d of the bag bundle 90 in the bag height direction.

  The reason will be described with reference to FIG. Consider a case where the tip arm 155 tries to open the bag mouth 91d of the leading bag 91 in the bag bundle 90 attached to the guide plate 121 not provided with the recess 21. The tip arm 155 moves toward the bag mouth 91d while being in contact with the extension piece 91c. At this time, when the thickness of the bag bundle 90 in the stacking direction is large, the bag piece 91c is compressed by the tip arm 155 and the thickness becomes thin as shown in FIG. The alternate long and short dash line near the tip arm 155 is the leading position of the bag bundle 90 before compression. Along with this, the front bag piece 91a is left as it is, and the back bag piece 91b of the leading bag 91 is also pushed toward the rearmost side in the bag stacking direction. As a result, as shown in FIG. 20A, the bag mouth 91d widens, and the tip arm 155 easily enters the bag mouth 91d.

  On the other hand, when the bag bundle 90 becomes thinner, the thickness of the bag piece 91c does not change so much even if it is compressed by the distal arm 155, as shown in FIG. 20 (b). As a result, the back bag piece 91b of the top bag 91 is also slightly pushed toward the rearmost side in the bag stacking direction. Therefore, as shown in FIG. 20B, the bag mouth 91d is not so wide, and the tip arm 155 remains difficult to enter the bag mouth 91d.

  Even in the state shown in FIG. 20 (b), the recess 21 provided in the guide plate 121 widens the bag mouth 91d in the same manner as the tip arm 155 shows the bag mouth 91d in FIG. 20 (a). Is a means to That is, even if the thickness of the bag bundle 90 becomes thin, as shown in FIG. 20C, the bag piece 91c is deformed by being pushed by the tip arm 155 to be convex toward the recess 21. Along with this, the back bag piece 91b of the top bag 91 is also deformed so as to be convex toward the recess 21. As a result, as shown in FIG. 20C, the bag mouth 91d widens, and the tip arm 155 easily enters the bag mouth 91d.

  The recess 21 provided in the guide plate 121 includes all modes in which the back bag piece 91b can be pushed toward the rearmost side in the bag stacking direction to widen the bag mouth 91d, as described above.

  The length of the recess 21 in the width direction may be any length from the center of the guide plate 121 in the width direction to both ends in the width direction, but is 1/2 or less of the width W of the bag 91 in the width direction. Is preferred. The height of the recess 21 in the bag height direction is not particularly limited as long as the bag mouth 91d of the bag bundle 90 straddles the bag height direction.

<12. Twelfth Embodiment>
An article storage device 50 according to another embodiment of the present invention will be described with reference to FIG. The article storage device 50 is a unit corresponding to the guide plate 121 of the article storage device 1 provided integrally with the bag bundle 90. That is, in the article storage device 50, as shown in FIGS. 21A and 21B, a bag in which the deformable plate 51 is integrally provided as a bag bundle on the rearmost side of the bag bundle 90 in the bag stacking direction. A bundle 52 is used.

  The deformable plate 51 is a plate made of a deformable material. The deformable plate 51 is deformable such that the vicinity of the widthwise ends of the bag bundle 52 is convex toward the leading side of the bag bundle 52 in the bag stacking direction, as compared with the vicinity of the widthwise center of the bag bundle 52. The deformable plate 51 can be bent toward the leading side in the bag stacking direction, for example. As a result, the bag bundle 52 is deformed so that both ends thereof are convex toward the leading side in the bag stacking direction, as shown in FIG.

  Since the bag bundle 52 is deformable as described above, it does not have to be guided by a special shape such as the guide plate 121.

  The article accommodating apparatus in which the respective parts of the article accommodating apparatus according to the first to twelfth embodiments described above are appropriately combined is also included in the scope of the present invention.

<13. Thirteenth Embodiment>
With reference to FIG. 22, bags 94 to 99 according to another embodiment of the present invention used in the article storage device according to the first to twelfth embodiments will be described. The basic structure of the bags 94 to 99 is the same as the bag 91 described with reference to FIG. Only the differences between the bags 94 to 99 and the bag 91 will be described below.

  As shown in FIG. 22A, the bag 94 has three mounting holes 94a to 94c, which is different from the bag 91 having two mounting holes. The bag having three mounting holes is an example, and a bag having three or more mounting holes is also included in the present invention.

  As shown in FIG. 22B, the bag 95 is one in which two notches 95a and 95b are formed in the front bag piece 91a at the bag mouth 91d portion of the bag 91. The notches 95a and 95b are provided so as to be separated from each other in the width direction of the bag 95 by a predetermined distance. In FIG. 22B, the shapes of the notches 95a and 95b are semicircular, but this is an example, and other shapes may be used. Moreover, the number of notches may be one, or three or more.

  As shown in FIG. 22 (c), the bag 96 is obtained by bending a piece 96 a near the end of the front bag piece 91 a at the bag mouth 91 d of the bag 91 toward the front bag piece 91 a in the front-rear direction of the bag 91. As shown in FIG. 22D, the bag 97 is provided with an emboss 98a extending in the width direction of the bag 97 near the end of the front bag piece 91a in the bag mouth 91d of the bag 91. As shown in FIG. 22 (e), the bag 98 has a bag 91 near the end of the front bag piece 91 a at the bag mouth 91 d part of the bag 91 and a spare piece 91 f at the bag mouth 91 d part of the bag 91. Embosses 98a and 98b extending in the width direction of 98 are provided.

  As shown in FIG. 22 (f), the bag 99 is made by melting only the front bag piece 91 a at two points 99 a and 99 b near the end of the front bag piece 91 a of the bag mouth 91 d of the bag 91. These two points are provided separated by a predetermined distance in the width direction of the bag 96. In addition, instead of or in addition to melting the above-mentioned two points 99a and 99b, the bag 99 has a width direction in the vicinity of a portion immediately below the end of the front bag piece 91a of the bag mouth 91d of the bag 91, as shown in FIG. In the line portion 99c having a predetermined length, only the front bag piece 91a may be melted.

  According to the bags 94 to 99 as described above, it is possible to create a slight gap into which the tip arm 155 enters the bag mouth 91d. Therefore, by using the bags 94 to 99 in the article storage device according to the first to ninth embodiments, the bag mouth 91d can be easily opened.

  The bags 94 to 99 are made of, for example, a stretched polypropylene film (OPP film: Oriented Poly Propylene Film) having a substantially rectangular shape and having fine holes. The fine pores have, for example, an average hole diameter of 30 μm or more and 300 μm or less, and are intended for the ventilation of carbon dioxide and oxygen. As a result, oxygen and carbon dioxide can be ventilated even when vegetables and fruits are stored, and the balance of the gas environment (carbon dioxide and oxygen) in the bag can be maintained well, so that the freshness can be maintained for a long time. Maintained.

<14. Fourteenth Embodiment>
Referring to FIG. 23, a bag 100 according to another embodiment of the present invention used in the article storage device according to the first to twelfth embodiments will be described. The basic configuration of the bag 101 is the same as that of the bag 91 described with reference to FIG. 2, and portions common to the bag 91 will be described using the same reference numerals as the bag 91. Only the differences between the bag 101 and the bag 91 will be described below.

  The bag 100 has a mounting hole 92 formed in a widthwise central region 102 located at the widthwise center. In addition, the bag bundle 100 configured by stacking a plurality of bags 101 has the coupling allowance regions 103 on both end sides in the width direction. The bags 101 are joined to each other at any place in the joining allowable area 103. The width-direction central region 102 and the coupling allowance region 103 are provided on the extension piece 101c.

  As shown in FIG. 23A, the width-direction central region 102 in which the mounting holes 102a and 102b of the bag 101 are provided has a width-direction center (1 / 3) It is preferably within the range of W or less. Note that the number of attachment holes of the bag 101 is not limited to two, and may be one as shown in FIG. 23B, or three or more.

  It is further preferable that the joining permissible region 103 that allows the bags 101 for making the bag bundle 100 to be joined by thermocompression bonding or the like be located outside the bag 101 in the width direction as much as possible. As shown in FIG. 23 (a), such a coupling permissible area 103 is, for example, an area of (1/3) W or less inward in the width direction with respect to both ends in the width direction of the bag 101. The bags 101 are joined to each other at any of the positions. As a mode of joining the bags 101 to each other to form the bag bundle 100, in the joining allowance region 103, for example, a needle heated to a high temperature is pierced in the thickness direction to open the welding holes 103a and 103b, and through the holes. The laminated bags 101 can be bonded by heat welding.

  The extension piece 101c has a separation line 101e extending in the width direction. The separation line 101e bisects the extension piece 101c in the height direction to create a bag edge portion 101f and a residual portion 101g. The separation line 101e only needs to be capable of separating the extension piece 101c, and for example, a perforation cut line is typical, but the separation line 101e is not limited to this and may be a thin separation line. It may be a separable structure (for example, notches at both ends).

  The separation line 101e is formed 0.5 cm or more above the lower end (bag mouth 101d) of the extension piece 101c. Therefore, the bag edge portion 101f remains on the bag 101 side separated from the bag bundle 100. The separation line 101e is preferably 1.0 cm or more, more preferably 1.5 cm from the lower end (bag mouth 101d) of the extension piece 101c. More preferably, it is 2 cm or more. In this way, the separation line 101e and the bag mouth 101d are separated from each other, so that both ends of the bag mouth 101d, which are liable to be fragile particularly when an oriented polypropylene film (OPP film: Oriented Poly Propylene Film) is used as a material, are torn. Can be suppressed. Further, since the residual portion 101g remaining in the bag bundle 101 and the bag mouth 101d of the bag 101 are separated from each other, even if the residual portion 101g exists, the tip of the arm of the article storage device can be easily inserted into the bag mouth 101d.

  On the other hand, the separation line 101e is formed below the engagement holes 102a and 102b. With this configuration, the engaging holes 102a and 102b remain on the residual portion 101g side, so that it is possible to prevent the residual portion 101g from falling from the hook and entering the bag 101 as foreign matter.

  The bag edge portion 101f can function as a lid for closing the bag mouth 101d by forming the adhesive layer 105 and folding it back. The adhesive layer 105 may be formed along the vicinity of the bag mouth 101d of the front bag piece 101a, and the folded bag edge portion 101f may be bonded to the adhesive layer 105. It is not limited to this application, and may be used for other applications. For example, a hole may be formed in the bag edge portion 101f, and the separated bag 101 may be hooked and displayed.

  Next, the advantages of the bag bundle 100 will be described with reference to FIG. Since the bag bundle 100 is thermocompression bonded in the stacking direction in the bonding allowance area 103, the rigidity of the bonding allowance area 103 is high. On the other hand, in the widthwise central region 102, since the bags 101 to be stacked are not joined to each other, the bags 101 are easily separated from each other in the stacking direction, and the overall rigidity is low. Therefore, when the bag bundle 100 is installed in the article storage device so that the vicinity of both ends in the width direction is convex toward the front side in the bag stacking direction, the high-rigidity coupling allowance regions 103 arranged on both sides face each other inward. As a result, the leading side in the stacking direction in the widthwise central region 102 is compressed inward in the widthwise direction, loosens, and bends so as to project toward the leading side. Thereby, a gap is easily formed between the stacked bags 101, and the bag mouth 101d is easily opened. As a result, the bag mouth 101d of the bag 101 can be easily opened at the bag opening portion or the like.

  Further, the width-direction central region 102 in which the mounting hole 102a is formed has flexibility because the stacked bags 101 are not welded to each other, and thus can be easily hooked to a mounting portion such as a hook. It will be possible.

  On the other hand, as shown in FIG. 24B, if the bags 101 stacked by the welding holes 103a and 103b are welded to each other in the widthwise central region 102, the rigidity of the widthwise central region 102 increases. Therefore, even if the bag bundle 100 is installed in the article storage device, the high-rigidity width-direction central region 102 is always in a linear state, and tension is generated in the width direction so that the bag mouth 101d is difficult to open. Further, if the mounting holes 102a and 102b are formed outside the width-direction central region 102, the bag 101 in the vicinity thereof will be separated, and it will be difficult to hook the mounting portion on the hook.

  FIG. 24 (c) shows a work situation in which the engagement hole 102a is engaged with the mounting portion 13 of the article storage device or the like. In this bag bundle 100, the engagement hole 102a is formed in the widthwise central region 102 of the extension piece 101c, and the worker can work while grasping both sides of the bag bundle 100 with both hands. Easy to hang on. In particular, since the widthwise central regions 102 are in an unbonded state, the flexibility is high. As a result, it is possible to hook the engagement hole 102a on the hook while bending the widthwise central region 102. In addition, since the bonding allowance regions 103 on both outer sides of the engagement hole 102a are thermocompression bonded in the stacking direction, they can be easily held by both hands. Because of the presence of the engaging portions 103a and 103b located on both sides, all the engaging holes 102a in the bag bundle 100 are not displaced from each other, so that the engaging portion 13 can be easily engaged.

  On the other hand, as shown in FIG. 24D, when the engaging holes 102a and 102b are provided in the vicinity of both ends in the width direction of the extension piece 101c, the pair of engaging holes 102a and 102b are simultaneously formed in the pair of mounting portions 13 and 13. It is difficult to engage them and it is necessary to engage them one by one. At this time, if one of the engaging holes 102a is engaged with the mounting portion 13, the bag bundle 100 is inclined with respect to the mounting portion 13, and the positions of the other engaging hole 102b and the other mounting portion 13 are changed. If they are misaligned, the work burden on the user increases. Note that the above action does not cause a big problem when the width of the bag bundle 100 is narrow. That is, the present configuration works more suitably when the width of the bag bundle 100 is 10 cm or more, preferably 15 cm or more.

  That is, the bag bundle 100 according to the fourteenth embodiment has an advantage that it is possible to loosen the soft central region 102 in the width direction by using the highly rigid coupling allowance regions 103 existing on both sides. .

  Therefore, it is preferable that the distance between the welding hole 103a and the welding hole 103b is wide, and an area of (1/4) W or less toward the inside in the width direction from the both ends in the width direction of the bag 101 as a reference is the coupling allowable area 103. And it is desirable to join within that range. This is because if the distance between the welding holes is widened, the central region 102 in the width direction becomes wide (for example, (1/2) W), the bag bundle 111 is not brought into close contact with each other, and loosening is likely to occur.

  It should be noted that the embodiment of the present invention shows an example for embodying the present invention, and the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. .

10 Bag Opening Mechanism 11 Bag Holding Section 12 Guide Section 13 Mounting Section 13a L-Shaped Member 15, 25, 35, 45 Bag Opening Section 16 Article Loading Opening 30, 40, 160 Telescopic Arm 31 Elastic Arm 32 Lever Section 33 Elastic Section 34 Spring 41 Sliding arm 42 Lever portion 43 Piston member 44 Cylinder member 90 Bag bundle 91, 94, 95, 96, 97, 98, 99 Bag 91a Front bag piece 91b Rear bag piece 91c Extension piece 91d Bag mouth 91e Separation line 91f Spare Piece 91g Spare piece 91h Bag bottom 92, 94a, 94b, 94c Mounting hole 93 Mounting portion 98a, 98b Embossing 120 Main body 121, 521, 621, 623, 721, 820, 921, 1210 Guide plate 121a Trailing side guide surface 121b Mounting Hole 122 Base 123 Standing part 123d Engaging part 124, 624, 72 , 824, 924, 1212 Central piece 125 Abutment surface 128 Clamping member 129 Holding member 151 Fixed shaft 152 Housing 152a One side 152b, 156, 157 axis 152c Hinge mechanism 153 Lever arm 154 Intermediate arm 155 Tip arm 158 Spring 160 Expandable arm 622 Auxiliary plate 701, 801, 802, 803, 804 Energizing member 722, 821, 822, 823 Guide piece 921a Leading side guide surface

Claims (9)

A bag holding structure comprising a bag bundle in which a plurality of bags for storing articles are stacked, and a bag holding portion for holding the bag bundle so as to suspend the bag bundle in a vertical direction,
The bag holder is
A guide portion that is a plate-shaped member that comes into contact with the rearmost surface of the bag bundle in the stacking direction of the bags,
A first standing portion that is erected forward from the guide portion and a second standing portion that is erected upward from the tip of the first standing portion, and with respect to the engagement hole of the bag bundle. A hook-shaped mounting portion to be engaged,
At a position that does not interfere with the attachment portion, a pressing member that abuts on the leading side of the bag bundle in the stacking direction and sandwiches the bag bundle between the guide portion,
By opening and closing the pressing member by a hinge mechanism, it is possible to switch between a state of sandwiching the bag bundle and a state of opening the bag bundle,
The guide is
From the upper end of the bag bundle to the lower side of the center in the height direction of the bag bundle, a central piece that contacts the rearmost surface,
In the vicinity of both ends in the width direction of the central piece, a bent portion that is bent so as to project toward the front front with respect to the central piece,
A bag holding structure characterized by having. The bent portion is
Near both ends in the width direction of the central piece, and a first bent portion protruding toward the front front with respect to the central piece at a position where it abuts on the rearmost surface of the bag bundle,
A second bent portion projecting forward from the first bent portion in the front direction at a position outside the first bent portion in the width direction and outside both ends in the width direction of the bag bundle. Characterized by,
The bag holding structure according to claim 1. The guide portion is characterized by holding the bag bundle such that the vicinity of both ends in the width direction of the bag bundle is convex toward the leading side in the stacking direction of the bags, as compared with the vicinity of the center in the width direction of the bag bundle,
The bag holding structure according to claim 1. The guide portion is detachably provided with respect to a main body of an article storage device that stores an article,
The bag holding structure according to any one of claims 1 to 3 . The pressing member pushes the bag bundle toward the rearmost surface side in the stacking direction,
The bag holding structure according to any one of claims 1 to 4. The bag of the bag bundle,
A sheet-shaped first bag piece,
A sheet-shaped second bag piece constituting a bag structure together with the first bag piece,
An extension piece extending further upward from the upper end in the height direction of the second bag piece,
An engaging hole formed in the extension piece and engageable with an external member,
The bag bundle in which a plurality of bags are stacked has a connecting portion that connects the extended pieces to be stacked inseparably from each other,
The engagement hole is formed in a widthwise central region that is 1/3 or less of the width dimension of the bag in the widthwise center of the extension piece,
As compared with the engaging hole, the coupling portion is arranged on both widthwise outer sides of the bag,
The bag holding structure according to any one of claims 1 to 5. The connecting portion is formed within a range of ⅓ or less of a width dimension of the bag from both ends in the width direction of the extension piece inward in the width direction.
The bag holding structure according to claim 6. The bag holding portion is characterized in that the connecting portion of the bag bundle holds the bag bundle so as to be convex toward the leading side in the stacking direction of the bags, as compared with the engagement hole.
The bag holding structure according to claim 6 or 7. The bag holding portion is in the vicinity of an end of the bag bundle in the bag height direction on the bag mouth side, and at least a part from the vicinity of the center in the bag height direction of the bag bundle to the end of the bag bottom side. The bag bundle is held such that the vicinity of both ends in the width direction is convex on the leading side in the stacking direction of the bags, as compared with the vicinity of the center in the width direction of the bag bundle.
The bag holding structure according to any one of claims 1 to 8 .

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