JP5778001B2 - Plate member - Google Patents

Description

  The present invention relates to a plate-like member for forming a suction tool used by being attached to a suction pipe of a vacuum cleaner.

  2. Description of the Related Art Conventionally, a suction tool for cleaning a narrow place by connecting to a suction pipe of a vacuum cleaner is known. In general, the suction tool is formed of a synthetic resin or the like in consideration of strength and durability. If you feel uncomfortable cleaning the living room etc. with the suction tool connected, after connecting this suction tool to the suction pipe and cleaning unclean places such as the toilet, entrance, and oil adhering surface. It was necessary to clean the suction tool after cleaning a clean place.

  As what solves this subject, the disposable suction tool described in patent document 1 is mentioned, for example. The suction tool described in Patent Document 1 has a plate-like material capable of forming a cylindrical suction tool when folded or bent, and this plate-like material is provided at one end thereof. A connecting portion forming piece that forms a connecting portion that is connected to the suction pipe of the vacuum cleaner when the plate-like material is folded or bent, and the plate-like material is provided at the other end. A suction port side forming piece that forms a suction port when folded or bent, and a triangle formed integrally with the plate material so as to extend from the end of the suction port side forming piece in the plate material It has disclosed that it has the shape holding piece A, the triangular holding piece B, and the holding piece. Further, in this Patent Document 1, the assembly of the suction tool is completed by folding the triangular holding piece A, the triangular holding piece B, and the holding piece inward after the plate-like material is formed into a cylindrical shape, and the opening portion. It is described that the mechanical strength in the vicinity is improved.

JP 2001-333875 A

  The suction tool formed of a plate-like material as described in Patent Document 1 is desired to have a strength that does not deform during use. The portion that forms the suction port in the suction tool formed of the plate-like material described in Patent Document 1 has a triangular holding piece A, a triangular holding piece B, and a holding piece that are folded back and have a certain mechanical strength. Although improvements have been made, the suction port is still easily deformed during use, and it has been difficult to efficiently perform the cleaning work.

  This invention solves such a subject, and provides the plate-shaped member for forming the suction tool which suppresses a deformation | transformation of the suction part at the time of use, and can perform cleaning work efficiently. Objective.

  As means for solving the above-mentioned problems, the present invention provides a bending device for forming a suction tool having a cylindrical body having a connection portion connected to a suction pipe of a cleaner at one end and a suction portion at the other end. It is a possible plate-shaped member, which is located at both ends in a specific direction and joined to each other, and located at one end in a direction orthogonal to the specific direction, and the pair of joined ends are joined together A connecting portion forming portion that forms the connecting portion, and a suction portion forming portion that is located at the other end in the direction orthogonal to the specific direction and that forms the suction portion by joining the pair of joining end portions to each other. And a base capable of forming the cylindrical body by joining the pair of joining ends, and a boundary between the base and the base that extends from the end of the base on the suction part forming part side The tubular shape by being bent at the part A shape-retaining part-forming piece capable of forming a shape-retaining part that increases the rigidity of the cylindrical body so as to maintain the shape of the cylindrical body, and a boundary portion between the base and the shape-retaining part-forming piece is When the cylindrical body is formed by joining a pair of joining end portions, it serves as a bending guide portion that guides the inner shape of the shape retaining portion forming piece. When the shape forming piece is bent at the bending guide portion to form the shape retaining portion, the shape retaining portion is inclined so that the shape retaining portion rises from the suction portion toward the connecting portion. Provided is a plate-like member having a convex shape on the part forming part side.

  The plate-like member of the present invention is a simple operation of bending the shape-retaining part forming piece to the inside of the cylindrical body at the bending guide part when the cylindrical body is formed by joining the pair of joining end parts, The suction tool which has a shape-retaining part which raises the rigidity of the said cylindrical body so that the shape of a cylindrical body may be maintained can be formed. Here, the shape retaining portion is formed by bending the shape retaining portion forming piece with a bending guide portion having a shape convex toward the connection portion forming portion side, so that the shape retaining portion rises from the suction portion toward the connection portion. The shape is slanted. When the shape retaining portion is bent at the boundary portion with the base so as not to be inclined so as to rise from the suction portion toward the connecting portion by having this shape, that is, the boundary portion with the base that becomes the bent portion. Compared to the case where is straight and bent at the straight part, the cylindrical body can resist the external force that increases the rigidity of the cylindrical body and deforms the suction part. Can keep. Therefore, according to the plate-shaped member of the present invention, it is possible to form a suction tool capable of suppressing the deformation of the suction portion during use and performing an efficient cleaning operation.

  In this case, the shape retaining portion forming piece is formed when an external force that deforms the suction portion acts on the cylindrical body in a state where the shape retaining portion is formed by bending at the bending guide portion. It is preferable to have an abutting portion forming portion that forms an abutting portion that abuts against the inner peripheral surface of the cylindrical body so as to resist external force.

  In this way, even when an external force that deforms the suction portion acts on the tubular body in a state where the tubular body is formed by joining the pair of joint ends, the contact portion of the shape retaining portion Contacts the inner peripheral surface of the cylindrical body and resists the external force, so that the deformation of the suction portion is further suppressed. Therefore, according to this plate-shaped member, the suction tool which can suppress a deformation | transformation of the suction part at the time of use can be formed.

  Further, in the present invention, an external force that extends from a portion different from the portion where the shape retaining portion forming piece extends in the base and is bent at a boundary portion with the base to deform the suction portion. It is preferable to further have an upright restricting portion forming piece capable of forming an upright restricting portion that restricts the shape retaining portion from rising when acting on the cylindrical body.

  If it does in this way, it has a standing regulation part by simple work of bending up the standing regulation part formation piece extended from the part other than the part in which the shape-retaining part formation piece in the base is extended in the boundary part with a base. A suction tool is formed. As a result, even if an external force that raises the shape retaining portion from the inclined state acts on the shape retaining portion, the standing restricting portion regulates the standing of the shape retaining portion, so that the shape retaining portion is maintained in the inclined state. The Thereby, the shape retaining part increases the rigidity of the cylindrical body and suppresses deformation of the suction part. Therefore, according to this plate-shaped member, it is possible to form a suction tool that can easily maintain the inclined state of the shape retaining portion and suppress deformation of the suction portion.

  Further, in this case, the shape retaining portion forming piece and the standing restricting portion forming piece are constrained to each other when the shape retaining portion and the standing restricting portion are formed by being bent at the boundary with the base, respectively. It is preferable to have a shape that engages.

  In this way, when the shape retaining portion and the standing restriction portion are formed by bending the shape retaining portion forming piece and the standing restriction portion forming piece at the boundary with the base, respectively, the shape retaining portion and the standing restriction portion are mutually connected. Since they are engaged so as to restrain each other, the two effectively restrict each other's displacement and maintain each other's bent state. Therefore, according to this plate-like member, it is possible to form a suction tool that can easily maintain the bent state of the shape retaining portion and the standing restriction portion.

  Specifically, the standing restricting portion forming piece is bent at a boundary portion with the base to form the standing restricting portion, and the surface of the shape retaining portion on the side close to the inner peripheral surface of the cylindrical body. A first overlapping portion forming portion that forms a first step overlapping portion that overlaps with the first overlapping portion forming portion, and a surface that is adjacent to the first overlapping portion forming portion and that is closer to the inner peripheral surface of the tubular body than the shape retaining portion. It is preferable to have a second overlapping portion forming portion that forms a second step overlapping portion that overlaps the surface on the opposite side.

  In this case, the first overlapping portion of the standing restriction portion overlaps the surface of the shape retaining portion that is closer to the inner peripheral surface of the cylindrical body, and the second overlapping portion is the inner portion of the cylindrical body of the shape retaining portion. Since it overlaps with the surface near the peripheral surface and the surface on the opposite side, the shape retaining portion and the standing restricting portion have a relationship in which they partially overlap each other and restrain each other. Therefore, according to this plate-like member, it is possible to form a suction tool that can more easily maintain the bent state of the shape retaining portion and the standing restriction portion.

  Further, in the present invention, the base has the cylindrical body in a state where the suction portion in the cylindrical body is in contact with the floor surface when the cylindrical body is formed by joining the pair of joining end portions. It is preferable that the shape retaining portion forming piece extends from a portion that is an end portion on the suction portion side of a portion positioned below in the tubular body in the posture.

  If it does in this way, in the state where the suction part of the cylindrical body formed by joining a pair of joined end parts contacted the floor, it will become the posture where the said cylindrical body inclines. Therefore, when the operation of the vacuum cleaner is stopped, the sucked-in suction object falls toward the suction portion along the inner surface of the portion positioned below in the inclined cylindrical body. Here, since the shape-retaining piece is provided so as to extend from the end portion on the suction portion side of the portion positioned below in the inclined cylindrical body, in the inclined cylindrical body when the operation of the cleaner is stopped Suction material that has fallen along the inner surface of the part located below is received between the shape-retaining part inclined so as to rise from the suction part toward the connection part and the inner peripheral surface of the cylindrical body, and sucks Going out of the tool is suppressed. Therefore, according to this plate-like member, it is possible to form a suction tool that suppresses the suctioned material once sucked out of the suction tool.

  Also, in the present invention, the check valve can be formed by extending from a portion different from the portion where the shape retaining portion forming piece extends in the base and being bent at a boundary portion with the base. The check valve forming piece further includes a check valve forming piece when the check valve is formed by bending at a boundary portion with the base when the check valve is sucked from the suction pipe side. An allowable position that allows suction by tilting inward with a straight check valve bent portion formed by bending as a fulcrum, and the check valve bent portion as a fulcrum when stopping suction from the suction pipe side It is preferable to have a shape that can move between a closed position that closes the suction portion by standing up.

  According to this plate-like member, the check valve is a simple operation in which the check valve forming piece extending from a portion different from the portion where the shape retaining portion forming piece extends in the base is bent inward at the boundary portion with the base. A suction tool having a check valve that can move between the allowable position and the closed position with the bent portion as a fulcrum can be formed. Therefore, according to this plate-like member, it is possible to simplify the manufacturing process for forming the check valve as compared with the case where the suction tool is manufactured using a check valve separate from the cylindrical body. It is possible to form a suction tool that can reduce the manufacturing cost.

  In this case, the check valve forming piece is an end of the check valve when the check valve is formed by bending at a boundary portion with the base. It is preferable that the check valve has a shape that closes the suction port of the suction portion together with the shape-retaining portion, and is located closer to the connection portion than the portion.

  In this way, when the check valve is formed by bending at the boundary with the base, the check valve and the shape retaining portion can block the suction port of the suction portion. Therefore, according to this plate-like member, it is possible to form a suction tool that suppresses the suctioned material once sucked out of the suction tool.

  Further, the present invention is a cylindrical suction tool used by being connected to a suction pipe of a vacuum cleaner, and a pair of joining end portions located at both ends in a specific direction of a foldable plate-like member are joined together. And a shape-retaining portion that increases the rigidity of the cylindrical body so as to maintain the shape of the cylindrical body, and the cylindrical body is provided at one end in the axial direction thereof. Connected to the suction pipe and a suction portion provided at the other end in the axial direction, and the shape retaining portion extends from a predetermined portion of the suction portion, and the cylinder Provided is a suction tool which is formed by bending the plate-like member inward at a boundary portion with a shape body, and has an inclined shape so as to rise from the suction portion toward the connection portion.

  The suction tool of this invention has a shape-retaining part that is inclined so as to rise from the suction part toward the connection part. The shape-retaining part has this shape, so that it is bent at the boundary with the cylindrical body so that it does not tilt so as to rise from the suction part toward the connecting part, that is, the cylindrical body that becomes the bent part. Compared to the case where the boundary portion is straight and bent at the straight portion, the cylindrical body can maintain the shape of the suction portion. . Therefore, according to the suction part of this invention, a deformation | transformation of the suction part at the time of use is suppressed and cleaning work can be performed efficiently.

  Further, in this case, when the external force that deforms the suction portion acts on the cylindrical body, the shape retaining portion abuts on the inner peripheral surface of the cylindrical body so as to resist the external force. It is preferable to have a contact part.

  In this way, even if an external force that deforms the suction portion acts on the cylindrical body, the abutting portion of the shape retaining portion abuts on the inner peripheral surface of the cylindrical body and resists the external force. The deformation of the suction part can be suppressed.

  As described above, according to the present invention, it is possible to provide a plate-like member for forming a suction tool capable of suppressing the deformation of the suction portion during use and performing an efficient cleaning operation.

It is a perspective view of the suction tool of one Embodiment of this invention. It is the perspective view of the state which looked at the suction tool shown in FIG. 1 from the connection part side. It is a cross-sectional perspective view in the YZ surface of the suction tool shown in FIG. It is a figure explaining the state which looked at the suction tool shown in FIG. 1 from the suction part side. It is an expanded view of the suction tool structural member which comprises the suction tool shown in FIG. It is a figure explaining the state which connected the suction tool shown in FIG. 1 to the suction pipe of the cleaner, and made the suction part contact | abut to a floor surface.

  A preferred embodiment of the present invention will be described with reference to FIGS. In the following description, the axial direction of the suction tool 10 shown in FIG. 1 is the Y-axis direction, the folding direction when the suction tool 10 is folded so as to be flattened is the Z-axis direction, and the Y-axis and Z-axis directions are A direction that is orthogonal to each other and connects a first ridge line 30h and a second ridge line 30j described later is defined as an X-axis direction. Here, in FIG. 1, the X-axis direction and the Y-axis direction coincide with each other. Moreover, as shown in FIG. 1, let the state in which the predetermined space was formed in the suction tool 10 be a 2nd state, and let the state where the suction tool 10 was planarized be a 1st state. In FIG. 4, a part of the standing restriction 50 located on the right side in the X-axis direction is indicated by a two-dot chain line. FIG. 4 shows a state before the check valve forming piece 61 is bent into the cylindrical body 30.

  As shown in FIG. 1, the suction tool 10 in the present embodiment includes a cylindrical main body 20 and a collection tool 70 having a bag shape joined to the inside of the main body 20.

  The main body 20 includes a cylindrical body 30 that is long in the Y-axis direction, a shape retaining portion 40 that is provided integrally with the cylindrical body 30, and a stand-up restricting portion 50 that is provided integrally with the cylindrical body 30. , 50 and a check valve 60 provided integrally with the cylindrical body 30. The main body 20 is formed of a bendable sheet-like member made of paper or synthetic resin. In the present embodiment, the standing restriction parts 50 are provided at two places.

  As shown in FIGS. 1 and 2, the cylindrical body 30 is formed by overlapping and joining the joining end portions 31 a in the specific direction (X-axis direction) of the plate-like member 21 described later. A superposed portion 30a. And it has the connection part 30b connected to the suction pipe P of the cleaner at one end in the axial direction (Y-axis direction), and the suction part 30c that sucks suction material such as pests and dust at the other end in the axial direction. And has a shape that gradually decreases in diameter from the suction portion 30c toward the connection portion 30b. Moreover, the cylindrical body 30 has the 1st ridgeline 30h, the 2nd ridgeline 30j, and the upper ridgelines 30k and 30k. Each of these ridge lines is formed by bending the cylindrical body 30 so as to be convex outward. Further, the cylindrical body 30 has a plurality of first holes 30s, 30s ... and a plurality of second holes 30t, 30t ... at predetermined positions in the Y-axis direction. Here, the outer shape on the lower side in the Z-axis direction of the cylindrical body 30 between the first ridge line 30h and the second ridge line 30j has a curved shape that protrudes outward. The curved shape is more preferably an arc shape. In the present embodiment, the upper outer shape in the Z-axis direction is a polygonal shape between the first ridgeline 30h and the second ridgeline 30j in the cylindrical body 30, but the shape of this portion is a polygonal shape. It is not limited, For example, the curved shape which protruded outside like the lower side may be sufficient. The cylindrical body 30 is inclined in the use state shown in FIG.

  The overlapping portion 30a is located in the upper portion in the use state shown in FIG. 6, that is, the portion where the check valve bent portion 60a described later in FIG. The overlapping portion 30a has higher rigidity than the other portions of the cylindrical body 30 because the plate-like member 21 is doubled.

  The connection part 30b is a part connected to the suction pipe P, and the shape of the XZ plane at the end thereof is substantially hexagonal. Between the first ridge line 30h and the second ridge line 30j at the end of the cylindrical body 30 on the connection part 30b side, bending guiding means are respectively formed on the lower side and the upper side in the Z-axis direction. The bending guiding means bends both sides sandwiching the intermediate position while maintaining the outer shape of the portion including the intermediate position between the first ridge line 30h and the second ridge line 30j at the end on the connection part 30b side in a substantially planar shape. It leads to the shape. Specifically, the bending guiding means formed on the lower side in the Z-axis direction at the end portion on the connection portion 30b side is from a position separated from each other in the X-axis direction so as to sandwich the intermediate position of each ridge line at the end portion. A pair of cut portions 30m, 30m having a shape extending toward the suction portion 30c side, and the bending guide means formed on the upper side in the Z-axis direction are mutually X so as to sandwich the intermediate position of each ridgeline at the end portion. It is the 1st notch part 30q and the 2nd notch part 30r of the shape extended toward the suction part 30c side from the position spaced apart to the axial direction. With the pair of cut portions 30m and 30m, the lower side in the Z-axis direction between the first ridge line 30h and the second ridge line 30j at the end on the connection portion 30b side is the pair of cut portions 30m and 30m. And is divided into a substantially planar first plane portion 30n and a pair of substantially planar second plane portions 30p, 30p formed on both sides of the first planar portion 30n. In the present embodiment, the pair of cut portions 30m and 30m are at positions that equally divide the lower side in the Z-axis direction into three equal portions between the first ridge line 30h and the second ridge line 30j at the end on the connection portion 30b side. Is formed. And a pair of 2nd plane parts 30p and 30p have a shape where the edge part by the side of the 1st plane part 30n overlaps with the 1st plane part 30n in the Z-axis direction. Moreover, the 1st notch part 30q and the 2nd notch part 30r are located in the both sides of the X-axis direction of the edge part by the side of the connection part 30b in the superimposition part 30a. In the present embodiment, the pair of cut portions 30m, 30m, or the first cut portion 30q and the second cut portion 30r are shown as the bending guide means. It is not limited to the notch, for example, it may be a continuous broken hole, or it may be thinned so as to induce bending, and the rigidity at each end is further reduced. Inducing bending at positions separated from each other in the X-axis direction so as to sandwich the doubled part by increasing the rigidity of this part, such as by duplicating the part including the middle position of the ridgeline It may be.

  The suction portion 30c includes a shape retaining portion connection portion 30d connected to a shape retaining portion 40 described later at a portion facing the check valve bent portion 60a in the Z-axis direction, and a check valve bent portion 60a in the Z-axis direction. In the part located between the shape part connection part 30d, there are standing restriction part connection parts 30e, 30e connected to standing restriction parts 50, 50, which will be described later, and a check valve connection part 30f connected to the check valve 60. In the present embodiment, the lower portion of the suction portion 30c when the cylindrical body 30 is in the inclined posture shown in FIG. 6 is formed in a curved shape.

  Each of the first ridge line 30h and the second ridge line 30j has a shape extending linearly from the end on the connection part 30b side to the end on the suction part 30c side, and can be folded at this part. ing. The first ridge line 30h and the second ridge line 30j are flattened by being folded at the first ridge line 30h and the second ridge line 30j, respectively, in a state where the shape retaining portion 40 is not formed. It is formed in the position which becomes the 1st state. The upper ridge lines 30k and 30k are formed at portions located at both ends in the X-axis direction in the overlapping portion 30a. In the present embodiment, two upper ridge lines 30k and 30k are formed.

  The plurality of first holes 30 s, 30 s... Are provided side by side along the circumferential direction in a portion having a predetermined diameter in the cylindrical body 30. These first holes 30 s, 30 s... Connect the outside and the inside of the cylindrical body 30. The plurality of first holes 30s, 30s,... Can secure an air flow from the outside of the tubular body 30 to the suction pipe P in a state where the tubular body 30 and the suction pipe P are connected. Has a shape. In the present embodiment, these first holes 30s, 30s... Are provided at three locations of the predetermined portion of the cylindrical body 30, but may be provided at least at one location.

  The plurality of second holes 30t, 30t,... Are a plurality of second holes 30t, 30t,. Are provided side by side along the circumferential direction in a portion having a diameter larger than the diameter of the portion in which the one holes 30s, 30s... Are formed. These second holes 30t, 30t... Have a shape capable of ensuring an air flow from the outside of the cylindrical body 30 to the suction pipe P in a state where the cylindrical body 30 and the suction pipe P are connected. Furthermore, these 2nd holes 30t, 30t ... have a larger diameter than each 1st hole 30s, 30s .... In the present embodiment, the second holes 30t, 30t,... Are provided at four locations of the predetermined portion of the cylindrical body 30, but may be provided at least at one location.

  The shape retaining portion 40 is provided integrally with the cylindrical body 30 so as to extend from the shape retaining portion connecting portion 30d, and increases the rigidity of the cylindrical body 30 so as to maintain the shape of the cylindrical body 30. It is. The shape retaining portion 40 is formed by bending a shape retaining portion forming piece 41 of the plate-like member 21 to be described later inside the cylindrical body 30 at a boundary portion with the cylindrical body 30. The shape-retaining portion bent portion 40a that is a boundary portion between the cylindrical body 30 and the cylindrical body 30 has a curved shape. The shape retaining portion 40 has a shape that is inclined so as to gradually rise from the suction portion 30c toward the connection portion 30b. In addition, the shape retaining portion 40 extends from the end portion on the suction portion 30c side of the portion located below in the inclined cylindrical body 30 shown in FIG. The shape retaining portion 40 sandwiches contact portions 40 c and 40 c that contact the inner peripheral surface of the cylindrical body 30 and first overlapping portions 50 b and 50 b described later between the inner peripheral surface of the cylindrical body 30. It has clamping parts 40d and 40d.

  The abutting portions 40c, 40c abut against the inner peripheral surface of the cylindrical body 30 so as to resist the external force when an external force that deforms the suction portion 30c acts on the cylindrical body 30. In the present embodiment, the contact portions 40c, 40c are formed at two locations on both ends of the shape retaining portion 40 in the X-axis direction, but may be formed at least at any one location.

  The clamping parts 40d and 40d are formed between the shape-retaining part bent part 40a and the contact parts 40c and 40c. The sandwiching portions 40d and 40d are formed at both ends in the X-axis direction of the shape retaining portion 40 so as to be adjacent to the contact portions 40c and 40c.

  The standing restriction portions 50 and 50 are integrally provided on the tubular body 30 so as to extend from the standing restriction portion connecting portions 30e and 30e, and an external force that deforms the suction portion 30c is applied to the tubular body 30. The shape retaining portion 40 is restricted from standing when acted. The standing restricting portions 50, 50 are formed by bending up standing restricting portion forming pieces 51, 51 of the plate-like member 21 to be described later, inside the tubular body 30 at a boundary portion with the tubular body 30, The standing restriction part bent parts 50a and 50a, which are the boundary parts between the standing restriction parts 50 and 50 and the cylindrical body 30, are linear. In the present embodiment, the standing restriction portions 50 and 50 are provided at two locations between the shape retaining portion 40 and the check valve 60. Further, the standing restriction parts 50, 50 may be omitted.

  The standing restriction portions 50, 50 include first overlapping portions 50b, 50b that overlap the sandwiching portions 40d, 40d, and second overlapping portions 50c, 50c that overlap the contact portions 40c, 40c. The first overlapping portions 50b and 50b overlap the sandwiching portions 40d and 40d so as to be sandwiched between the inner peripheral surface of the cylindrical body 30 and the sandwiching portions 40d and 40d. The second overlapping portions 50c and 50c overlap the contact portions 40c and 40c so as to sandwich the contact portions 40c and 40c with the inner peripheral surface of the cylindrical body 30. The first overlapping portions 50b and 50b and the second overlapping portions 50c and 50c are adjacent to each other. The contact portions 40c and 40c, the sandwiching portions 40d and 40d, the first overlapping portions 50b and 50b, and the second overlapping portions 50c and 50c are alternately overlapped with each other as described above. Engaging with the standing restricting portions 50, 50 so as to restrain each other.

  The check valve 60 is provided integrally with the cylindrical body 30 so as to extend from the check valve connection part 30f in the suction part 30c, so that the suctioned matter once sucked does not go out of the suction tool 10. It is a deterrent. As shown in FIG. 3, the check valve 60 is formed by bending a check valve forming piece 61 of a plate-like member 21, which will be described later, to the inside of the cylindrical body 30 at a boundary portion with the cylindrical body 30. The check valve bent portion 60a, which is a boundary portion between the check valve 60 and the cylindrical body 30, is linear. The check valve 60 has a shape that closes the suction port of the suction portion 30c together with the shape retaining portion 40, and has a stopper portion 60b formed on the side opposite to the check valve bent portion 60a. This stopper part 60b is located further on the connection part 30b side than the end part on the connection part 30b side in the shape retaining part 40, and prevents the check valve 60 from opening to the outside of the cylindrical body 30. . Here, the check valve 60 shown in FIGS. 1 and 3 and the check valve 60 shown by a solid line in FIG. 6 are in a closed position for closing the suction portion 30c, and the check valve 60 shown by a two-dot chain line in FIG. It is in the permissible position that allows suction of the suction object. The check valve 60 is movable between an allowable position and a closed position with the check valve bent portion 60a as a fulcrum. The check valve 60 can be omitted.

  The collection tool 70 is formed in a bag shape from a non-woven fabric, and collects the sucked material while allowing passage of gas. In addition, this collection tool 70 is not restricted to what consists of a nonwoven fabric, The thing which consists of cloth, or the net-like thing which consists of a metal or a synthetic resin may be sufficient. As shown in FIG. 3, the collection tool 70 includes an opening defining portion 70 a that defines an opening for receiving the sucked material on the inner peripheral surface thereof, and a collecting portion 70 b that collects the sucked material. Here, the collection part 70b refers to a part of the collection tool 70 other than the opening defining part 70a. The collector 70 has a cylindrical body so that the opening faces the suction portion 30c side, that is, the direction from the opening toward the collection portion 70b coincides with the direction from the suction portion 30c toward the connection portion 30b. It is joined to 30 inner peripheral surfaces. As the bonding region, the first bonding region 31v and the second bonding region 31w are provided. The first joining region 31v is provided between the suction part 30c on the inner peripheral surface of the cylindrical body 30 and the plurality of second holes 30t, 30t, and is joined to the outer peripheral surface of the opening defining part 70a over the entire periphery. It is an area to be done. The second bonding region 31w has a shape extending from the first bonding region 31v toward the connection portion 30b and is a region that is partially bonded to the outer peripheral surface of the collection portion 70b. As shown in FIG. 5, in the present embodiment, the second bonding region 31w has a shape extending linearly from the first bonding region 31v so as not to reach the first hole 30s. The joining region 31w may have a shape that extends to the end portion on the connection portion 30b side, avoiding the first hole 30s.

  In addition, the collecting tool 70 is formed in such a size that a part of the collecting portion 70b is exposed to the outside of the cylindrical body 30 from the end portion on the connection portion 30b side in a state where the collecting tool 70 is joined in the cylindrical body 30. ing. As shown in FIGS. 2 and 3, the collecting tool 70 has a shape in which a gap is formed between the outer peripheral surface at the maximum outer diameter of the collecting portion 70 b and the inner peripheral surface of the cylindrical body 30. .

  FIG. 5 shows a suction tool forming member 11 for forming the suction tool 10 described so far. That is, the suction tool forming member 11 corresponds to the developed suction tool 10. The suction tool forming member 11 is joined to the plate-like member 21 which forms the main body 20 by joining a pair of joining end portions 31a, 31a in the specific direction (X-axis direction) to each other. And a collector forming member 71 that forms the collector 70.

  The plate-like member 21 that forms the main body 20 in the suction tool 10 forms a base 31 that forms the cylindrical body 30, a shape-retaining part-forming piece 41 that forms the shape-retaining part 40, and the standing restriction parts 50 and 50. It has the standing regulation part formation piece 51 and the check valve formation piece 61 which forms the check valve 60. The plate-like member 21 is formed of a member made of foldable paper or synthetic resin.

  The base 31 has a predetermined shape in which a pair of joining end portions 31 a and 31 a are arranged in a specific direction (X-axis direction), and the cylinder in the main body 20 when the plate-like member 21 is formed on the main body 20. Form 30 is formed. The base 31 includes a pair of joining end portions 31 a and 31 a that form the overlapping portion 30 a in the cylindrical body 30, a connection portion forming portion 31 b that forms a connection portion 30 b in the cylindrical body 30, and a suction in the cylindrical body 30. A suction portion forming portion 31c that forms the portion 30c, and a first ridge line forming portion 31h, a second ridge line forming portion 31j, and a first ridge line 30h, a second ridge line 30j, and upper ridge lines 30k, 30k in the cylindrical body 30; Upper ridge line forming portions 31k and 31k, a pair of cut portion forming portions 31m and 31m that form a pair of cut portions 30m and 30m in the cylindrical body 30, and a first flat surface portion 30n in the cylindrical body 30 are formed. A first plane portion forming portion 31n, a pair of second plane portion forming portions 31p, 31p forming a pair of second plane portions 30p, 30p in the cylindrical body 30, and a first cut in the cylindrical body 30 The first cut portion forming portion 31q and the second cut portion forming portion 31r that form the portion 30q and the second cut portion 30r, a plurality of first holes 30s, 30s, ..., and a plurality of second holes 30t. , 30t..., A step portion 31u, a first bonding region 31v and a second bonding region 31w, and an end bonding region 31x that is a region where the pair of bonding end portions 31a and 31a are bonded to each other.

  The pair of joining end portions 31 a and 31 a are respectively formed at both ends of the base 31 in a specific direction. The pair of joining end portions 31 a and 31 a are overlapped with each other and joined at an end joining region 31 x which is a part of the overlapping portion, thereby forming a superposed portion 30 a in the cylindrical body 30. The pair of joining end portions 31a and 31a are formed in regions outside upper ridge line forming portions 31k and 31k described later in a specific direction.

  The connection part forming part 31 b is provided on one end side in a direction (Y-axis direction) substantially orthogonal to the specific direction in the base 31, and forms the connection part 30 b when the base 31 is formed on the cylindrical body 30. .

  The suction portion forming portion 31 c is provided on the other end side in the Y-axis direction of the base 31, and forms the suction portion 30 c when the base 31 is formed on the cylindrical body 30. The suction portion forming portion 31c includes a shape retaining portion forming piece connecting portion 31d for connecting the shape retaining portion forming piece 41, a standing restricting portion forming piece connecting portion 31e, 31e for connecting the standing restricting portion forming pieces 51, 51, and And a check valve forming piece connecting portion 31 f for connecting the check valve forming piece 61. In the present embodiment, the standing restriction portion forming piece connecting portions 31e and 31e are formed at two symmetrical positions with the shape retaining portion forming piece connecting portion 31d interposed therebetween.

  The first ridge line forming part 31h, the second ridge line forming part 31j, and the upper ridge line forming parts 31k, 31k each have a shape extending in a direction connecting the connection part forming part 31b and the suction part forming part 31c, and are mutually X-axis. They are spaced apart in the direction. Then, when the base 31 is formed on the cylindrical body 30, each of the ridge line forming portions is bent so as to protrude outward, whereby the first ridge line 30h, the second ridge line 30j, and the upper ridge lines 30k, 30k. Form. In the present embodiment, the upper ridge line forming portions 31 k and 31 k are formed at two locations on the base 31.

  The first ridge line forming part 31h and the second ridge line forming part 31j have a shape extending linearly from the end part on the suction part forming part 31c side to the end part on the connection part forming part 31b side. The first ridge line forming portion 31h and the second ridge line forming portion 31j are configured such that one joining end portion 31a located on the side where the check valve forming piece connection portion 31f is not provided (the right side in FIG. 5) is a check valve. The base 31 is bent by approximately 180 degrees at the first ridge line forming portion 31h so as to approach the other joining end portion 31a located on the side where the forming piece connecting portion 31f is provided (left side in FIG. 5). The base 31 is bent at approximately 180 degrees at the second ridge line forming portion 31j so that the joint end portion 31a approaches the one joint end portion 31a, so that the pair of joint end portions 31a and 31a are formed at the overlapping positions. ing.

  Each of the upper ridge line forming portions 31k and 31k is formed to have a dimension that starts from the end portion on the suction portion forming portion 31c side and does not reach the connecting portion forming portion 31b. The upper ridge line forming portions 31k and 31k are formed closest to the pair of joining end portions 31a and 31a in each ridge line forming portion.

  The pair of cut portion forming portions 31m and 31m are formed between the first ridge line forming portion 31h and the second ridge line forming portion 31j at the end portion of the base 31 on the connection portion forming portion 31b side. And by this pair of notch part formation parts 31m and 31m, between the 1st ridgeline formation part 31h and the 2nd ridgeline formation part 31j in the edge part by the side of the connection part formation part 31b of the base 31 is a 1st plane part. It is divided into a forming part 31n and a pair of second flat part forming parts 31p, 31p located on both sides thereof. The pair of cut portion forming portions 31m and 31m are arranged in a specific direction so as to sandwich an intermediate position between the first ridge line forming portion 31h and the second ridge line forming portion 31j at the end of the base 31 on the connection portion forming portion 31b side. It is spaced apart and has a shape extending from the end portion toward the suction portion forming portion 31c.

  The 1st notch part formation part 31q is formed between one joining edge part 31a and the 1st ridgeline formation part 31h in the edge part by the side of the connection part formation part 31b of the base 31, The 2nd notch part The forming portion 31r is formed between the other joining end portion 31a and the second ridge line forming portion 31j at the end portion of the base 31 on the connection portion forming portion 31b side. Each of the first cut portion forming portion 31q and the second cut portion forming portion 31r has a shape extending from the end portion on the connection portion forming portion 31b side toward the suction portion forming portion 31c, and each extension line is It corresponds to each upper ridge line forming part 31k, 31k.

  The plurality of first holes 30 s, 30 s... Are located at one location between one joining end portion 31 a and the first ridge line forming portion 31 h and 1 between the first ridge line forming portion 31 h and the second ridge line forming portion 31 j. One point is formed between the second ridge line forming portion 31j and the other joining end portion 31a. In addition, the location which forms several 1st hole 30s, 30s ... is not limited to these locations. The plurality of second holes 30t, 30t,... Are located at one location between one joining end 31a and the first ridge line forming portion 31h, and between the first ridge line forming portion 31h and the second ridge line forming portion 31j. A total of four locations, one location, and the second ridge line forming portion 31j and the other joining end portion 31a are formed. In addition, the location which forms several 2nd holes 30t, 30t ... is not limited to these locations.

  The step 31u is formed at the end of the base 31 on the side where the other joining end 31a is formed (left side in FIG. 5), and the base 31 is formed in the cylindrical body 30 at the end. This is to prevent the upper ridge line 30k from overlapping.

  The first joining region 31v is provided between the suction portion forming portion 31c and the plurality of second holes 30t, 30t. The second bonding region 31w has a shape extending from the first bonding region 31v toward the connection part forming portion 31b. The end joint region 31x is a region that joins the pair of joint end portions 31a and 31a. This end joint region 31x is provided at the end of the base 31 on the side where the check valve forming piece connection portion 31f is located (left side in FIG. 5), and from the end on the connection portion forming portion 31b side to the suction portion It has a shape that reaches the end on the formation part 31c side.

  The shape retaining portion forming piece 41 is provided integrally with the base 31 so as to extend from the shape retaining portion forming piece connecting portion 31d in the suction portion forming portion 31c, and a bending guiding portion 41a that is a boundary portion with the base 31. The shape-retaining portion 40 is formed by being bent at a step. The bending guide portion 41 a has a shape that can guide bending of the shape retaining portion forming piece 41 to the inside of the cylindrical body 30 when the base 31 is formed on the cylindrical body 30. Specifically, the bent shape guiding portion 41a is connected to the shape retaining portion 40 when the shape retaining portion forming piece 41 is bent by the bent guiding portion 41a to form the shape retaining portion 40 from the suction portion 30c. It has a shape that is convex toward the connection portion forming portion 31b so as to be inclined so as to gradually rise toward the portion 30b. In this embodiment, the bending guide portion 41a has a curved shape that is convex toward the connection portion forming portion 31b, but this portion is convex toward the connection portion forming portion 31b. The shape is not limited to a curved shape, and a connecting portion is formed by connecting a plurality of straight lines to each other, a shape that is convex toward the connecting portion forming portion 31b, or a straight line and a curved line. The shape which became convex toward the part 31b side may be sufficient.

  In addition, the shape retaining portion forming piece 41 has a convex portion 41b that is convex toward the connecting portion forming portion 31b so as to follow the shape of the bending guide portion 41a. linked. In the present embodiment, the positions of both ends in the specific direction of the convex part 41b are the same as the positions where the first ridge line forming part 31h and the second ridge line forming part 31j are formed at the end part on the suction part forming part 31c side. However, the positions of both ends in the specific direction of the convex portion 41b are inside the positions where the first ridge line forming portion 31h and the second ridge line forming portion 31j are formed at the end portion on the suction portion forming portion 31c side. There may be.

  Further, the shape retaining portion forming piece 41 includes contact portion forming portions 41c and 41c that form contact portions 40c and 40c when the shape retaining portion forming piece 41 is bent by the bending guide portion 41a, and the shape retaining portion 41c. When the shape portion forming piece 41 is bent by the bending guide portion 41a, the holding portion forming portions 41d and 41d that form the holding portions 40d and 40d, and the shape retaining portion forming piece 41 inside the tubular body 30 are formed. And a bending assisting portion 41e for assisting in bending. The abutting portion forming portions 41 c and 41 c are formed at the opposite end portions of the shape retaining portion forming piece 41 in the specific direction on the side opposite to the convex portion 41 b, and the base 31 is formed on the cylindrical body 30. It has a shape capable of coming into contact with the inner peripheral surface of the cylindrical body 30 when it is formed. The sandwiching portion forming portions 41d and 41d are formed at positions adjacent to the contact portion forming portions 41c and 41c in the Y-axis direction among both end portions in the specific direction of the shape retaining portion forming piece 41, and are described below. The first overlapping portions 50 b and 50 b in the portions 50 and 50 have a shape that can be sandwiched between the inner peripheral surface of the cylindrical body 30. The bending auxiliary portion 41e has a shape that divides the shape retaining portion forming piece 41 into two regions adjacent to each other in a specific direction, and the shape retaining portion forming piece 41 is bent inside the cylindrical body 30. Is to assist.

  The rising restriction portion forming pieces 51 and 51 are integrally provided on the base 31 so as to extend from the rising restriction portion forming piece connecting portions 31e and 31e in the suction portion forming portion 31c, and are linear portions and straight lines. The upright restricting portions 50 and 50 are formed by being bent by the standing upright restricting portion forming piece bent portions 51a and 51a. The standing restricting portion forming pieces 51 and 51 include first overlapping portion forming portions 51b and 51b that form first overlapping portions 50b and 50b, and second overlapping portions 50c, Second overlapping portion forming portions 51c and 51c forming 50c. The first overlapping part forming parts 51b and 51b are formed at positions adjacent to the sandwiching part forming parts 41d and 41d in a specific direction, and the second overlapping part forming parts 51c and 51c are specified with the contact part forming part 41c. It is formed at a position adjacent to the direction. The second overlapping portion forming portions 51c and 51c are shaped when the standing restricting portion forming pieces 51 and 51 are bent at the standing restricting portion forming piece bent portions 51a and 51a to form the standing restricting portions 50 and 50. The contact portions 40c, 40c of the portion 40 are spaced apart from the contact portion forming portions 41c, 41c in a specific direction by a predetermined dimension so that the contact portions 40c, 40c can be sandwiched between the inner peripheral surface of the cylindrical body 30.

  The check valve forming piece 61 is provided integrally with the base 31 so as to extend from the check valve forming piece connecting portion 31f in the suction portion forming portion 31c, and is a boundary portion with the base 31 and is a linear check. The check valve 60 is formed by being bent at the valve forming piece bending portion 61a. The check valve forming piece 61 has a stopper portion forming portion 61b that forms a stopper portion 60b at the end opposite to the check valve forming piece bent portion 61a.

  The collecting tool forming member 71 is formed of a non-woven fabric, and forms the bag-shaped collecting tool 70 when the base is formed on the cylindrical body 30. The collecting tool forming member 71 is not limited to a non-woven fabric, but may be a cloth or a net-like material made of metal or synthetic resin. The collecting tool forming member 71 includes an opening forming portion 71a that forms an opening and a collecting portion forming portion 71b that forms a collecting portion 70b.

  Next, a process of manufacturing the suction tool component and the suction tool 10 using the suction tool forming member 11 will be described. Here, the suction component member is a first state in which the cylindrical body 30 is flattened, and a second state in which a predetermined space is formed inside the cylindrical body 30 and can be used as the suction tool 10. Indicates a switchable member.

  First, a bonding material such as an adhesive or a double-sided tape is provided in the first bonding region 31v, the second bonding region 31w, and the end bonding region 31x of the base 31. And the said collector formation member 71 so that the outer peripheral surface of the opening formation part 71a of the collection tool formation member 71 is joined by the 1st joining area | region 31v, and the collection part formation part 71b is each joined by the 2nd joining area | region 31w. Is placed on the base 31.

  Next, after each of the standing restricting portion forming portions 51, 51 is bent approximately 180 degrees by the standing restricting portion forming piece bent portions 51a, 51a, the side where the check valve forming piece connecting portion 31f is not provided (the right side in FIG. 5) The first base 31 is positioned so that one joint end 31a located on the side close to the other joint end 31a located on the side where the check valve forming piece connection part 31f is provided (left side in FIG. 5). The base 31 is bent at approximately 180 degrees at the second ridge line forming portion 31j so that the ridge line forming portion 31h bends approximately 180 degrees and the other bonded end portion 31a approaches the one bonded end portion 31a. At this time, the outer peripheral surface of the opening forming portion 71a is joined at the first joining region 31v over the entire circumference, and the pair of joining end portions 31a and 31a are joined at the end joining region 31x. Thereby, the suction tool component in the first state is formed.

  Then, the cylindrical body 30 which has predetermined space inside is formed by applying force to the said ridgeline so that the 1st ridgeline 30h and 2nd ridgeline 30j of a suction tool structural member may mutually approach. At this time, as shown in FIG. 2, the pair of second plane portions 30p, 30p has a shape in which the end portion on the first plane portion 30n side overlaps the first plane portion 30n in the Z-axis direction. The outer shape of the cylindrical body 30 on the side where the pair of cut portions 30m and 30m are located is between the first ridge line 30h and the second ridge line 30j. Thereby, a suction tool structural member will be in a 2nd state.

  And the shape-retaining-part formation piece 41 is bend | folded inside the cylindrical body 30 by the bending guide part 41a. At that time, the shape retaining portion forming piece 41 is tubular while receiving the assistance of the bending auxiliary portion 41e by sequentially bending the two regions divided by the bending auxiliary portion 41e to the inside of the cylindrical body 30. The body 30 can be folded inside. When the bending of the shape-retaining portion forming piece 41 is completed, the shape-retaining portion 40 is inclined so as to gradually rise from the suction portion 30c toward the connection portion 30b, and the holding portions 40d and 40d are cylindrical bodies. 30 overlaps with the first overlapping portions 50b, 50b so as to sandwich the first overlapping portions 50b, 50b with the inner peripheral surface of the cylindrical body 30, and the contact portions 40c, 40c are in contact with the inner peripheral surface of the cylindrical body 30. Between the second overlapping portions 50c and 50c so as to be sandwiched between the second overlapping portions 50c and 50c. Thereby, the shape-retaining part 40 and the standing restriction parts 50 and 50 are engaged with each other so as to restrain each other.

  Finally, the check valve forming piece 61 is bent inward of the cylindrical body 30 by the check valve forming piece bent portion 61a. At that time, the stopper portion 60b is bent so as to be positioned further on the connection portion 30b side than the end portion of the shape retaining portion 40 on the connection portion 30b side.

  From the suction tool forming member 11, the suction tool constituent member or the suction tool 10 is formed by the above steps.

  Next, the connection between the suction tool 10 and the suction pipe P will be described.

  Since the diameter of the end on the connection part 30b side in the suction tool 10 is smaller than the diameter of the tip of the suction pipe P, the suction tool 10 is arranged so that the end on the connection part 30b side enters the inside of the suction pipe P. Connected to the suction pipe P. In this state, each of the ridge lines in the suction tool 10, that is, the first ridge line 30h, the second ridge line 30j, and the upper ridge lines 30k and 30k are all in contact with the inner peripheral surface of the tip of the suction pipe P, and the cylindrical body. 30, the side where the pair of cut portions 30m, 30m is located between the first ridge line 30h and the second ridge line 30j, that is, the curved side is the inner peripheral surface of the suction pipe P over substantially the entire region. Line contact with

  Then, the use condition of the suction tool 10 is demonstrated based on FIG.

  FIG. 6 is a side view when the connection portion 30b of the suction tool 10 is connected to the tip of the suction pipe P and the suction portion 30c is brought into contact with the floor surface. In FIG. 6, the cross-section is partially broken so that the shape retaining portion 40 and the check valve 60 can be seen, and the state of the check valve 60 when sucked by a vacuum cleaner, that is, the check valve. A state in which the valve 60 is in the allowable position is indicated by a two-dot chain line. As shown in FIG. 6, in a state where the suction part 30 c in the suction tool 10 is in contact with the floor surface, the suction tool 10 is inclined with respect to the floor surface. At this time, the overlapping portion 30a is located above the inclined cylindrical body 30. And the shape-retaining part 40 is connected to the edge part by the side of the suction part 30c located in the downward direction in the cylindrical body 30 of this inclination attitude | position. In FIG. 6, the check valve 60 indicated by a two-dot chain line, that is, the check valve 60 in the allowable position is bent at the check valve bent portion 60a, and the tip of the check valve 60 is inclined. 30 is close to the inner surface of the upper portion. Then, when the suction by the cleaner is stopped, the check valve 60 is displaced toward the position indicated by the solid line in FIG. 6, that is, the closed position where the suction portion 30c is closed by contacting the shape retaining portion 40.

  As described above, according to the plate-like member 21 of the present embodiment, when the cylindrical body 30 is formed by joining the pair of joining end portions 31a and 31a, the shape retaining portion forming piece 41 is bent. The suction tool 10 having the shape retaining portion 40 that increases the rigidity of the tubular body 30 so as to keep the shape of the tubular body 30 can be formed by a simple operation of bending the inside of the tubular body 30 by 41a. . Here, since the shape retaining portion 40 is formed by bending the shape retaining portion forming piece 41 with the bending guide portion 41a having a shape convex toward the connection portion forming portion 31b, the shape retaining portion 40 is connected to the connection portion from the suction portion 30c. The shape is inclined so as to rise toward 30b. The shape-retaining portion 40 has this shape, and when it is bent at the boundary portion with the base so as not to rise so as to rise from the suction portion 30c toward the connection portion 30b, that is, a base that becomes a bent portion. The boundary portion of the cylindrical body 30 is bent so that the inner peripheral surface of the cylindrical body 30 and the surface of the shape retaining portion 40 on the inner peripheral surface side of the cylindrical body 30 are in contact with each other over substantially the entire surface. Compared to the case, since the rigidity of the cylindrical body 30 can be increased and the external force that deforms the suction portion 30c can be resisted, the cylindrical body 30 can maintain the shape of the suction portion 30c. Therefore, according to the plate-shaped member 21 of this embodiment, the suction tool 10 which can suppress the deformation | transformation of the suction part 30c at the time of use and can perform a cleaning operation | work efficiently can be formed.

  Further, the plate-like member 21 of the present embodiment has an external force applied to the tubular body 30 such that the suction portion 30c is deformed in a state where the tubular body 30 is formed by joining the pair of joining end portions 31a and 31a. Even if it acts, since the contact part 40c of the shape retaining part 40 contacts the inner peripheral surface of the cylindrical body 30 and resists the external force, the deformation of the suction part 30c is further suppressed.

  Further, the plate-like member 21 of the present embodiment is formed by the suction tool 10 having the standing restriction portions 50 and 50 by a simple operation of bending the standing restriction portion forming pieces 51 and 51 inward at the boundary portion with the base 31. Is done. As a result, even if an external force that causes the shape retaining portion 40 to stand up from an inclined state acts on the shape retaining portion 40, the standing restriction portions 50, 50 regulate the standing shape retaining portion 40, so the shape retaining portion 40 tilted states are maintained. Accordingly, the shape retaining portion 40 increases the rigidity of the cylindrical body 30 and suppresses deformation of the suction portion 30c.

  Further, the plate-like member 21 of the present embodiment is formed by bending the shape retaining portion forming piece 41 and the standing restricting portion forming pieces 51 and 51 at the boundary portions with the base 31 to form the shape retaining portion 40 and the standing restricting portions 50 and 50, respectively. When formed, the shape retaining portion 40 and the upright restricting portions 50, 50 engage with each other so as to restrain each other, so that both effectively restrict each other's displacement and maintain each other's bent state. Specifically, the first overlapping portions 50b and 50b of the standing restriction portions 50 and 50 overlap the surface of the shape retaining portion 40 on the side close to the inner peripheral surface of the cylindrical body 30, and the second overlapping portions 50c and 50c. Is overlapped with the surface on the opposite side to the surface near the inner peripheral surface of the cylindrical body 30 in the shape retaining portion 40, so that the shape retaining portion 40 and the upright restricting portions 50, 50 are partially alternate. It overlaps with each other and becomes a relationship of restraining each other.

  Further, the plate-like member 21 of the present embodiment has the cylindrical body in a state where the suction portion 30c of the cylindrical body 30 formed by joining the pair of joining end portions 31a and 31a is in contact with the floor surface. 30 will be inclined. Therefore, when the operation of the vacuum cleaner is stopped, the sucked inhaled material falls along the inner surface of the lower portion of the inclined cylindrical body 30 toward the suction portion 30c. Here, since the shape retaining portion 40 is provided so as to extend from the end portion on the suction portion 30c side of the cylindrical body 30 in the inclined posture, the cylinder in the inclined posture when the operation of the cleaner is stopped. The suction object that has fallen along the inner surface of the lower portion of the cylindrical body 30 is inclined so as to rise from the suction section 30c toward the connection section 30b, and the inner peripheral surface of the cylindrical body 30. And being out of the suction tool 10 is suppressed.

  Further, the plate-like member 21 of the present embodiment is a simple operation in which the check valve forming piece 61 is bent inward at the boundary portion with the base 31, and the allowable position and the closed position with the check valve bent portion 60a as a fulcrum. The suction tool 10 having the check valve 60 movable between the two can be formed.

  Further, the plate-like member 21 of the present embodiment is configured such that the check valve 60 and the shape retaining portion 40 when the check valve 60 is formed by bending at the boundary with the base 31 are the suction port of the suction portion 30c. Can be blocked. Therefore, according to this plate-shaped member 21, it is possible to form the suction tool 10 in which the sucked material once sucked is suppressed from coming out of the suction tool 10.

  Moreover, the suction tool component member of the present embodiment includes a first state in which the cylindrical body 30 is flattened, and a second state in which a predetermined space is formed inside the cylindrical body 30 and can be used as the suction tool 10. Since it can be switched between states, the form can be changed according to the situation, such as the first state during storage and transportation, and the second state during use.

  Furthermore, this suction tool component member has an intermediate position between the first ridge line 30h and the second ridge line 30j at the end on the connection part 30b side of the tubular body 30 when the tubular body 30 is in the second state. The included portion has a first planar portion 30n whose outer shape is substantially planar. Specifically, the suction tool constituting member includes at least one of the first ridge line 30h and the second ridge line 30j at the end on the connection part 30b side, and the first ridge line 30h and the second ridge line 30j at the end. Since there is a pair of cut portions 30m, 30m having a shape extending toward the suction portion 30c from positions separated from each other so as to sandwich the intermediate position between them, the external force applied to each ridge line when the second state is established The cylindrical body 30 when it is blocked by the notches 30m, 30m and is not transmitted to the intermediate position of each ridge line at the end on the connection portion 30b side, and thereby the suction component member is in the second state. The outer shape of the portion sandwiched between the pair of cut portions 30m and 30m at the end portion on the connection portion 30b side is kept substantially flat. Therefore, it is possible to suppress the angle formed by the intermediate position of each ridge line on the outer peripheral surface of the cylindrical body 30 from being reduced, or the occurrence of folding at this portion.

  Moreover, the suction tool 10 of this embodiment is cylindrical, when the part pinched by a pair of notch parts 30m and 30m in the cylindrical body 30 and the curved part of the suction part 30c cooperate. Of the outer peripheral surface of the body 30, the side on which the pair of cut portions 30m, 30m is formed can be easily maintained in a curved shape. As a result, when the suction tool 10 is connected to the suction pipe P, the curved portion of the outer shape of the cylindrical body 30 and the inner peripheral surface of the tip of the suction pipe P come into line contact. And the contact location of both is fully ensured and omission from the suction pipe P of the suction tool 10 can be suppressed.

  Further, the suction tool 10 of the present embodiment has a pair of cuts at a position that equally divides the space between the first ridge line 30h and the second ridge line 30j at the end of the outer peripheral surface of the cylindrical body 30 on the connection portion 30b side. Since the cut-in portions 30m and 30m are formed, the outer shape on the side where the pair of cut-out portions 30m and 30m are formed in the end portion of the outer peripheral surface of the cylindrical body 30 on the connection portion 30b side becomes close to an arc shape. Thus, the side on which the pair of cut portions 30m and 30m are formed on the outer peripheral surface of the cylindrical body 30 is easily kept in a curved shape.

  Further, according to the plate-like member 21 of the present embodiment, an air flow extending from the outside of the cylindrical body 30 formed by joining the pair of joining end portions 31a and 31a in the base 31 into the suction pipe P is secured. 1st hole 30s of the shape which can be performed, and it is provided in the suction part 30c side rather than this 1st hole 30s, and it is possible to ensure the airflow from the exterior of the cylindrical body 30 into the suction pipe P The suction tool 10 having the shape of the second hole 30t is formed. Therefore, when the suction pipe P is connected to the suction tool 10 between the end of the cylindrical body 30 on the connection part 30b side and the first hole 30s, the suction pipe P is formed near the tip of the suction pipe P. Since the air flow from the outside of the cylindrical body 30 to the inside of the suction pipe P is secured through the first hole 30s, the occurrence of a problem that the suction tool 10 is crushed due to the negative pressure inside the cylindrical body 30 is suppressed. Is done. When the suction pipe P is connected to the suction tool 10 between the first hole 30s and the second hole 30t in the cylindrical body 30, the second is formed near the tip of the suction pipe P. Since the air flow from the outside of the cylindrical body 30 into the suction pipe P is secured through the hole 30t, the occurrence of a problem that the suction tool 10 is crushed due to the negative pressure inside the cylindrical body 30 is suppressed.

  Further, in the suction tool forming member 11 of the present embodiment, the suction tool 10 including the collection tool 70 is formed by joining the pair of joint end portions 31 a and 31 a in the base 31. Since the first joining region 31v in the suction tool 10 is formed between the suction part 30c and the second hole 30t, the suction object once sucked in is spilled out of the suction tool 10 from the second hole 30t. Can be prevented. Furthermore, since this suction tool 10 has the 2nd junction area | region 31w of the shape extended toward the connection part 30b side from the 1st junction area | region 31v avoiding the 2nd hole 30t, the internal peripheral surface of the cylindrical body 30 In addition, a joint portion between the tubular body 30 and the collecting tool 70 is effectively ensured, and the separation of the collecting tool 70 from the tubular body 30 can be suppressed.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  For example, in the above embodiment, the shape retaining portion 40 is provided on the side where the overlapping portion 30a does not exist between the first ridge line 30h and the second ridge line 30j at the end of the cylindrical body 30 on the suction portion 30c side. However, the position where the shape retaining portion is provided may be the side where the overlapping portion 30a exists between the first ridge line 30h and the second ridge line 30j at the end portion, and the end portion. It may be between the first ridgeline 30h and the second ridgeline 30j.

DESCRIPTION OF SYMBOLS 10 Suction tool 11 Suction tool formation member 20 Main body 21 Plate-shaped member 30 Cylindrical body 30a Superposition part 30b Connection part 30c Suction part 30d Shape retention part connection part 30e Standing restriction part connection part 30f Check valve connection part 30h 1st ridgeline 30j Second ridge line 30k Upper ridge line 30m A pair of cut portions 30n First plane portion 30p Second plane portion 30q First cut portion 30r Second cut portion 30s First hole 30t Second hole 31 Base 31a Joint end 31b Connection Part formation part 31c Suction part formation part 31d Shape retention part formation piece connection part 31e Standing restriction part formation piece connection part 31f Check valve formation piece connection part 31h First ridge line formation part 31j Second ridge line formation part 31k Upper ridge line formation part 31m A pair of cut portion forming portions 31n first flat portion forming portion 31p second flat portion forming portion 31q first cut portion forming portion 31r second cut portion forming portion 31u stepped portion 31v 1st joining area | region 31w 2nd joining area | region 31x End part joining area | region 40 Shape retention part 40a Shape retention part bending part 40c Contact part 40d Nipping part 41 Shape retention part formation piece 41a Bending | guiding part 41b Protrusion part 41c Contact Part forming part 41d Holding part forming part 41e Bending auxiliary part 50 Standing restriction part 50a Standing restriction part bending part 50b First overlapping part 50c Second overlapping part 51 Standing restriction part forming piece 51a Standing restriction part forming piece bending part 51b First overlap portion forming portion 51c Second overlap portion forming portion 60 Check valve 60a Check valve bent portion 60b Stopper portion 61 Check valve forming piece 61a Check valve forming piece bent portion 61b Stopper portion forming portion 70 Tool 70a Opening defining part 70b Collecting part 71 Collecting tool forming member 71a Opening forming part 71b Collecting part forming part

Claims (10)

A foldable plate-like member for forming a suction tool having a cylindrical body having a connection part connected to a suction pipe of a vacuum cleaner at one end and a suction part at the other end,
A pair of joint end portions located at both ends in a specific direction and joined to each other, and a connection forming the connection portion by joining the pair of joint end portions at one end in a direction orthogonal to the specific direction A pair of joints, and a suction part forming part that forms the suction part by joining the pair of joint ends that are located at the other end in a direction orthogonal to the specific direction. A base capable of forming the cylindrical body by joining ends;
Forming a shape-retaining portion that extends from the end of the base on the suction portion forming portion side and is bent at the boundary with the base to increase the rigidity of the cylindrical body so as to maintain the shape of the cylindrical body A shape-retaining part-forming piece that can be
A boundary portion between the base and the shape retaining portion forming piece is a bending that induces bending inside the shape retaining portion forming piece when a cylindrical body is formed by joining the pair of joining end portions. This bending guiding portion is connected to the shape retaining portion when the shape retaining portion forming piece is bent at the bending guiding portion to form the shape retaining portion from the suction portion. A plate-like member having a shape that is convex toward the connection portion forming portion so as to be inclined to rise toward the portion.   The shape retaining portion forming piece resists the external force when an external force that deforms the suction portion acts on the cylindrical body in a state where the shape retaining portion is formed by bending at the bending guide portion. The plate-shaped member according to claim 1, further comprising a contact portion forming portion that forms a contact portion that contacts the inner peripheral surface of the cylindrical body.   It extends from a portion different from the portion where the shape retaining portion forming piece extends in the base, and an external force that deforms the suction portion is applied to the cylindrical body by being bent at a boundary portion with the base. The plate-like member according to claim 1 or 2, further comprising an upright restricting portion forming piece capable of forming an upright restricting portion that restricts the shape retaining portion from standing when acted.   The shape retaining portion forming piece and the standing restricting portion forming piece are engaged with each other so as to restrain each other when the shape retaining portion and the standing restricting portion are formed by being bent at a boundary portion with the base. The plate-shaped member according to claim 3 having   The standing restricting portion forming piece is bent at a boundary portion with the base to form a standing restricting portion, and the first restricting portion overlaps a surface of the shape retaining portion on a side close to the inner peripheral surface of the cylindrical body. A first overlapping portion forming portion that forms a step overlapping portion, and a surface that is adjacent to the first overlapping portion forming portion and that is on the opposite side of the shape-retaining portion and closer to the inner peripheral surface of the cylindrical body The plate-shaped member according to claim 4, further comprising a second overlapping portion forming portion that forms a second overlapping portion that overlaps with the second step overlapping portion. The base has a posture in which the cylindrical body is inclined in a state in which the suction portion of the cylindrical body is in contact with the floor surface when the cylindrical body is formed by joining the pair of joining end portions. Has a shape,
The plate-shaped member according to any one of claims 1 to 5, wherein the shape retaining portion forming piece extends from a portion which is an end portion on the suction portion side of a portion positioned below the cylindrical body in the posture. A check valve forming piece that extends from a portion different from a portion where the shape retaining portion forming piece extends in the base and can be bent at a boundary portion with the base to form a check valve. Have
When the check valve is formed by bending at the boundary with the base, the check valve forming piece is a straight line formed by bending when the check valve is sucked from the suction pipe side. Allowing the suction by tilting inward with the check valve bent portion as a fulcrum, and the suction portion by standing up with the check valve bent portion as a fulcrum when the suction from the suction pipe side stops The plate-shaped member according to any one of claims 1 to 6, wherein the plate-shaped member has a shape movable between a closed position and a closed position.   The check valve forming piece has an end portion of the check valve when the check valve is formed by bending at a boundary portion with the base, more than an end portion of the shape retaining portion on the connection portion side. The plate-like member according to claim 7, wherein the plate-like member is located on the connection part side and has a shape such that the check valve closes the suction port of the suction part together with the shape retaining part. A cylindrical suction tool used by connecting to a suction pipe of a vacuum cleaner,
A cylindrical body formed by joining a pair of joining ends located at both ends in a specific direction of a foldable plate-like member, and the rigidity of the cylindrical body so as to maintain the shape of the cylindrical body A shape retaining portion that enhances
The cylindrical body has a connection portion provided at one end in the axial direction and connected to the suction pipe, and a suction portion provided at the other end in the axial direction.
The shape retaining portion extends from a predetermined portion of the suction portion, and is formed by bending the plate-like member inward at a boundary portion with the cylindrical body, from the suction portion toward the connection portion. A suction tool that has an inclined shape to stand up.   The shape retaining portion has an abutting portion that abuts against an inner peripheral surface of the cylindrical body so as to resist the external force when an external force that deforms the suction portion acts on the cylindrical body. Item 10. The suction tool according to Item 9.

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