JP2016019676A - Infant circle and joint for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an infant circle that reduces the risk of toppling over.SOLUTION: An infant circle 1 provides, for example, a space S1 for making an infant play safely. The infant circle 1 comprises an upper frame 10, a lower frame 30, and a vertical frame 20 for connecting the upper and lower frame 10 and 30 together. The peripheral length of the upper frame 10 is shorter than that of the lower frame 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an infant circle used for limiting the range of action of an infant. The present invention also relates to a joint used in the infant circle.

  Infant circles that provide a space for children to play safely are known in various forms. For example, in Patent Literature 1, an infant circle having an upper frame, a lower frame, and a vertical frame is formed by assembling a plurality of pipes and a plurality of joints respectively connecting adjacent pipes. According to the form shown in Patent Document 1, it is excellent in that the infant circle can be configured to be lightweight and can be stored compactly.

JP 2013-154082 A

  However, since the infant circle described in Patent Document 1 is lightweight, if the upper frame is strongly pressed by an infant moving around in the infant circle, there is a high risk of falling.

  The present invention has been made in consideration of the above points, and an object of the present invention is to provide an infant circle with reduced risk of falling and a joint used for the infant circle.

  The circle for infants according to the present invention includes an upper frame, a lower frame, and a vertical frame connecting the upper frame and the lower frame, and the circumference of the upper frame is shorter than the circumference of the lower frame.

  In the infant circle according to the present invention, the upper frame includes a plurality of upper pipes and a plurality of upper joints respectively connecting two adjacent upper pipes, and the lower frame includes a plurality of lower pipes, A plurality of lower joints respectively connecting two adjacent lower pipes, and the vertical frame includes a plurality of vertical joints respectively connecting one upper joint and a lower joint corresponding to the one upper joint. You may have a pipe.

  In the infant circle according to the present invention, the lower joint may include a first cylindrical portion that holds one lower pipe and a second cylindrical portion that holds another lower pipe.

  In the infant circle according to the present invention, the lower joint includes a mounting plate positioned outside a region surrounded by the lower frame, and the mounting plate includes the axis of the first cylindrical portion and the second cylinder. A bottom surface along a plane defined by the axis of the shape portion may be included.

  In the infant circle according to the present invention, the lower joint further includes a third cylindrical portion that holds the vertical pipe, and the axis of the third cylindrical portion is the axis of the first cylindrical portion and the second axis. You may incline in the area | region enclosed by the said lower frame from the direction orthogonal to the plane prescribed | regulated by the axis line of a cylindrical part.

  In the infant circle according to the present invention, a suction cup may be attached to the lower joint from the side opposite to the side to which the vertical pipe is connected.

  A joint for an infant circle according to the present invention is a joint used for an infant circle configured by assembling a plurality of pipes and a plurality of joints connecting adjacent pipes, and holds one pipe. A first cylindrical portion, a second cylindrical portion that holds two pipes, a third cylindrical portion that holds three pipes, an axis of the first cylindrical portion, and an axis of the second cylindrical portion And a mounting plate positioned in one of the two regions divided by: the axis of the third cylindrical part is the axis of the first cylindrical part and the second cylindrical part Is inclined from the direction perpendicular to the plane defined by the axis of the first cylindrical portion toward the other region of the region divided by the axis of the first cylindrical portion and the axis of the second cylindrical portion, The mounting plate includes the axis of the first cylindrical portion and the second cylindrical shape. Including the bottom along a plane defined by the axis of the.

  According to the infant circle according to the present invention, since the circumference of the upper frame is shorter than the circumference of the lower frame, the vertical frame can be tilted toward the region surrounded by the upper frame. For this reason, when an infant moving around in the infant's circle applies a force to push the upper frame from the area surrounded by the upper frame toward the outside of the area, the vertical frame inclined toward the area surrounded by the upper frame Functions to support the pressed force. As a result, it is possible to reduce the risk of the infant circle falling.

  Moreover, according to the joint for infants circles by this invention, the pipe hold | maintained at a 3rd cylindrical part can be inclined toward the opposite side to a mounting plate. Therefore, when the joint according to the present invention is used as the lower joint of the infant circle, the mounting plate is positioned outside the region surrounded by the lower frame assembled using the lower joint and is held by the third cylindrical portion. The pipe can be tilted toward the area surrounded by the lower frame. In this case, when the infant moving around in the infant circle applies a force to push the vertical pipe toward the placement plate, the placement plate functions to support the pushed force. As a result, it is possible to reduce the risk of the infant circle falling.

The perspective view which shows the circle for infants by one embodiment of this invention. The perspective view which shows the upper frame and lower frame which comprise the circle for infants of FIG. The perspective view which shows an example of the pipe used for the upper pipe which comprises an upper frame, and the lower pipe which comprises a lower frame. The perspective view which shows an example of the vertical pipe which comprises a vertical frame. The perspective view which shows an example of the upper joint which comprises an upper frame. Sectional drawing which shows the cross section of the upper joint along line VI-VI shown in FIG. The perspective view which shows an example of the lower joint which comprises a lower frame. Sectional drawing which shows the cross section of the lower joint along line VIII-VIII shown in FIG. Sectional drawing which shows the cross section of the lower joint along line IX-IX shown in FIG. The perspective view which shows the cloth-like material which comprises the circle for infants of FIG. The perspective view which expands and shows a part of cloth-like member shown in FIG. The perspective view for demonstrating the assembly | attachment procedure of the circle for children shown in FIG. It is a figure for demonstrating the assembly | attachment procedure of the circle for children shown in FIG. 1, Comprising: The perspective view which shows the procedure following FIG. The perspective view for demonstrating the lower joint which comprises a lower frame. The perspective view which shows the example which attached the suction cup to the lower joint shown in FIG. Sectional drawing which shows the cross section of the lower joint along line XVI-XVI shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product. FIGS. 1-14 is a figure for demonstrating the circle for infants by this Embodiment.

  FIG. 1 shows the overall configuration of the infant circle 1. The infant circle 1 shown in FIG. 1 is used to limit the action range of the infant. Typically, the infant circle 1 provides a play space S1 for accommodating an infant and allowing the infant to play safely. As shown in FIG. 1, the infant circle 1 is configured by assembling a plurality of pipes 11, 21, 31 and joints 12, 32 that connect adjacent pipes 11, 21, 31. According to this configuration, the infant circle 1 can be configured to be lightweight, and can be disassembled and stored compactly.

  As shown in FIG. 1, the infant circle 1 includes an upper frame 10, a lower frame 30, and a vertical frame 20 that connects the upper frame 10 and the lower frame 30. A cloth material 40 is stretched over the upper frame 10, the vertical frame 20, and the lower frame 30. The aforementioned play space S1 is defined in a space surrounded by the frames 10, 20, 30 and the cloth-like material 40.

  FIG. 2 is a perspective view showing the upper frame 10 and the lower frame 30. As shown in FIG. 2, the upper frame 10 and the lower frame 30 have outer edges 10a and 30a along corresponding closed curves C1 and C2, respectively. In the example shown in FIG. 2, the outer edge 10a of the upper frame 10 and the outer edge 30a of the lower frame 30 have a polygonal shape, particularly a regular hexagonal shape. However, the size of the regular hexagon formed by the outer edge 10 a of the upper frame 10 is smaller than the size of the regular hexagon formed by the outer edge 30 a of the lower frame 30. Accordingly, the entire length of the outer edge 10a of the upper frame 10, that is, the circumferential length L1 of the upper frame 10, is shorter than the entire length of the outer edge 30a of the lower frame 30, that is, the circumferential length L2 of the lower frame 30. In this case, as will be described later, even if the upper frame 10 is strongly pressed by an infant moving around in the play space S1, the possibility that the infant circle 1 will fall can be reduced. In FIG. 2, a region surrounded by the upper frame 10 is A1, and a region surrounded by the lower frame 30 is A2.

  As illustrated in FIG. 2, the upper frame 10 includes a plurality of upper pipes 11 and a plurality of upper joints 12 that respectively connect two adjacent upper pipes 11. As described above, the outer edge 10a of the upper frame 10 has a regular hexagonal shape. Therefore, the upper frame 10 of the present embodiment includes a total of six upper pipes 11 arranged on each side of the regular hexagon, and a total of six upper joints 12 respectively arranged on the corners of the regular hexagon. Have. On the other hand, the lower frame 30 positioned below the upper frame 10 includes a plurality of lower pipes 31 and a plurality of lower joints 32 respectively connecting two adjacent lower pipes 31. The lower frame 30 of the present embodiment has a total of six lower pipes 31 arranged on each side of the regular hexagon, and a total of six lower joints 32 respectively arranged on the corners of the regular hexagon. ing.

  On the other hand, as shown in FIG. 1, the vertical frame 20 includes a plurality of vertical pipes 21 respectively connecting one upper joint 12 and one lower joint 32 corresponding to the one upper joint 12. As described above, since six upper joints 12 and six lower joints 32 are provided, six vertical pipes 21 are provided in total.

  In the present embodiment, the upper pipe 11 and the lower pipe 31 are configured by the same pipe. On the other hand, the vertical pipe 21 is configured by a pipe different from the upper pipe 11 and the lower pipe 31. FIG. 3 shows a perspective view of a pipe forming the upper pipe 11 and the lower pipe 31, and FIG. 4 shows a perspective view of a vertical pipe. The pipe shown in FIG.3 and FIG.4 is a hollow cylindrical member extended along the axial direction. In particular, the length L3 of the pipe forming the upper pipe 11 and the lower pipe 31 shown in FIG. 3 is equal to the length L4 of the pipe forming the vertical pipe 21 shown in FIG. On the other hand, the diameter D1 of the pipe forming the upper pipe 11 and the lower pipe 31 shown in FIG. 3 is equal to the diameter D2 of the pipe forming the vertical pipe 21 shown in FIG.

  However, as described above, the circumferential length L1 of the upper frame 10 is shorter than the circumferential length L2 of the lower frame 30. In this regard, as will be described later, by adjusting the insertion position of the upper pipe 11 into the upper joint 12 and the insertion position of the lower pipe 31 into the lower joint 32, the circumferential length L1 of the upper frame 10 is reduced to the lower frame. A configuration in which the circumference is shorter than 30 circumference L2 is realized.

  Next, the upper joint 12 that connects two adjacent upper pipes 11 will be described with reference to FIG. FIG. 5 is a perspective view showing an example of the upper joint 12. As shown in FIG. 5, the upper joint 12 includes an upper first cylindrical portion 12 a that holds one upper pipe 11, an upper second cylindrical portion 12 b that holds another upper pipe 11, and a vertical pipe 21. And an upper third cylindrical portion 12c to be held. Each cylindrical part 12a-12c is extended along the axis line X1-X3. Typically, each axis line X1 to X3 coincides with the central axis of the corresponding cylindrical portion 12a to 12c.

  FIG. 6 shows a horizontal cross section of the upper joint 12. As understood from FIG. 6, one ends of the corresponding pipes 11 and 21 are inserted into the respective cylindrical portions 12 a to 12 c along the axis lines X1 to X3. And each cylindrical part 12a-12c fits into the end of the inserted pipes 11 and 21, and the said pipes 11 and 21 are hold | maintained. One ends of the pipes 11 and 21 inserted into the respective cylindrical portions 12a to 12c come into contact with the end surfaces Es of the cylindrical portions 12a to 12c from the direction along the axis lines X1 to X3. When one end of the pipes 11 and 21 comes into contact with the end surface Es, the insertion position of the pipes 11 and 12 into the upper joint 12 is determined. In particular, in the present embodiment, the position of the end surface Es of the upper first cylindrical portion 12a is determined so that the distance U1 from the axis X3 of the upper third cylindrical portion 12c becomes a desired value, and the upper second cylinder. The position of the end face Es of the shaped part 12b is determined so that the distance U2 with the axis X3 of the upper third tubular part 12c becomes a desired value. In the present embodiment, the distance U1 between the end surface Es of the upper first tubular portion 12a and the axis X3 of the upper third tubular portion 12c is equal to the end surface Es of the upper second tubular portion 12b and the upper third tube. It is equal to the distance U2 with the axis X3 of the shape part 12c.

  As described above, the outer edge 10a of the upper frame 10 has a regular hexagonal shape (see FIG. 2). Therefore, in the present embodiment, the axis X1 of the upper first cylindrical portion 12a extending linearly and the axis X2 of the upper second cylindrical portion 12b extending linearly form an angle of 120 °. Crossed. Further, in the present embodiment, the axis X1 of the upper first cylindrical portion 12a and the axis X2 of the upper second cylindrical portion 12b are located at the same height in the grounding state of the infant circle 1. That is, when a plane defined by the axis X1 of the upper first cylindrical portion 12a and the axis X2 of the upper second cylindrical portion 12b is P1, the plane P1 is parallel to the horizontal plane in the grounding state of the infant circle 1. Become. In addition, the cross section of the upper joint 12 along this plane P1 corresponds with the cross section shown in FIG.

  On the other hand, the axis X3 of the upper third cylindrical portion 12c intersects the plane P1 defined by the axis X1 of the upper first cylindrical portion 12a and the axis X2 of the upper second cylindrical portion 12b. In the present embodiment, the axis X3 of the upper third cylindrical portion 12c is orthogonal to the plane P1. Accordingly, the vertical pipe 21 held by the upper third cylindrical portion 12c is substantially along the vertical direction when the infant circle 1 is in contact with the ground.

  Next, the lower joint 32 that connects two adjacent lower pipes 31 will be described with reference to FIG. FIG. 7 is a perspective view showing an example of the lower joint 32. As shown in FIG. 7, the lower joint 32 includes a lower first cylindrical portion 32 a that holds one lower pipe 31, a lower second cylindrical portion 32 b that holds another lower pipe 31, and the vertical pipe 21. And a lower third cylindrical portion 32c to be held. The cylindrical portions 32a to 32c of the lower joint 32 extend along the axis lines Y1 to Y3. Typically, each axis line Y1 to Y3 coincides with the central axis of the corresponding cylindrical portion 32a to 32c.

  FIG. 8 shows a horizontal cross section of the lower joint 32. As understood from FIG. 8, one ends of the corresponding pipes 31 and 21 are inserted along the axis lines Y <b> 1 to Y <b> 3 into the respective cylindrical portions 32 a to 32 c. And each cylindrical part 32a-32c fits into the end of the inserted pipes 31 and 21, and hold | maintains the said pipes 31 and 21. As shown in FIG. One end of each of the pipes 11 and 21 inserted into the cylindrical portions 32a to 32c comes into contact with the end surface Es of the cylindrical portions 32a to 32c from the direction along the axis lines Y1 to Y3. When one end of the pipes 11 and 21 abuts on the end surface Es, the insertion position of the pipes 11 and 12 into the lower joint 32 is determined. In particular, in the present embodiment, the position of the end surface Es of the lower first cylindrical portion 32aa is determined so that the distance U3 from the axis Y1 of the lower first cylindrical portion 32a becomes a desired value, and the lower second cylindrical portion The position of the end face Es of the shaped part 32b is determined so that the distance U4 between the lower third tubular part 32c and the axis Y3 becomes a desired value. In the present embodiment, the distance U3 between the end surface Es of the lower first tubular portion 32a and the axis Y1 of the lower first tubular portion 32a is equal to the end surface Es of the lower second tubular portion 32b and the lower third tube. It is equal to the distance U4 with respect to the axis Y3 of the shape part 32c.

  In particular, the distance U1 between the end surface Es of the upper first cylindrical portion 12a shown in FIG. 6 and the axis X3 of the upper third cylindrical portion 12c is equal to the end surface Es of the lower first cylindrical portion 32a shown in FIG. It is smaller than the distance U3 with the axis Y1 of one cylindrical part 32a. Similarly, the distance U2 between the end surface Es of the upper second cylindrical portion 12b shown in FIG. 6 and the axis X3 of the upper third cylindrical portion 12c is lower than the end surface Es of the lower second cylindrical portion 32b shown in FIG. It is smaller than the distance U4 with the axis Y1 of the 1st cylindrical part 32a. Thereby, when the length of each upper pipe 11 and the length of each lower pipe 31 are equal, peripheral length L1 of upper frame 10 can be made shorter than peripheral length L2 of lower frame 30. That is, by adjusting the insertion position of the upper pipe 11 into the upper joint 12 and the insertion position of the lower pipe 31 into the lower joint 32, the peripheral length L1 of the upper frame 10 is made larger than the peripheral length L2 of the lower frame 30. Is realized.

  Returning to FIG. 7, each cylindrical part 32a-32c of the lower joint 32 is extended along the axis line Y1-Y3. Typically, each axis line Y1 to Y3 coincides with the central axis of the corresponding cylindrical portion 32a to 32c. As described above, since the outer edge 30a of the lower frame 30 has a regular hexagonal shape (see FIG. 2), in the present embodiment, the axis Y1 of the lower first cylindrical portion 32a extending linearly, The axis Y2 of the lower second cylindrical portion 32b extending linearly intersects at an angle of 120 °. In this embodiment, axis Y1 of lower 1st cylindrical part 32a and axis Y2 of lower 2nd cylindrical part 32b are located in the same height in the grounding state of circle 1 for infants. That is, when the plane defined by the axis Y1 of the lower first cylindrical portion 32a and the axis Y2 of the lower second cylindrical portion 32b is P2, the plane P2 is parallel to the horizontal plane in the grounding state of the infant circle 1. Become.

  On the other hand, the axis Y3 of the lower third cylindrical portion 32c intersects the plane P2 defined by the axis Y1 of the lower first cylindrical portion 32a and the axis Y2 of the lower second cylindrical portion 32b. However, unlike the upper joint 12, in the lower joint 32, the axis Y3 of the lower third cylindrical portion 32c is not orthogonal to the plane P2. This point will be described in more detail with reference to FIG. FIG. 9 is a cross-sectional view of the lower third cylindrical portion 32c. As shown in FIG. 9, a direction orthogonal to the plane P2 defined by the axis Y1 of the lower first cylindrical portion 32a and the axis Y2 of the lower second cylindrical portion 32b is defined as d1. Further, as described above, the region A1 surrounded by the upper frame 10 (see FIG. 2) and the region surrounded by the lower frame 30 are A2. In this case, the axis Y3 of the lower third cylindrical portion 32c is inclined toward the inside of the region A2 from the direction d1 orthogonal to the plane P2. Therefore, the vertical pipe 21 held by the lower third cylindrical portion 32c is inclined from the vertical direction toward the area A1 surrounded by the upper frame 10 in the grounding state of the infant circle 1. As an example, the angle θ1 at which the axis Y3 of the lower third cylindrical portion 32c is inclined from the direction d1 orthogonal to the plane P2 is set to 5.7 ° or more and 5.9 ° or less.

  Further, as shown in FIG. 7, the lower joint 32 has a mounting plate 32 d located outside the region A <b> 2 surrounded by the lower frame 30. The mounting plate 32d is connected to the lower first cylindrical portion 32a and the lower second cylindrical portion 32b from the outside of the region A2 surrounded by the lower frame 30. In the example shown in FIG. 7, the mounting plate 32d is configured by a flat plate-like member having an L-shape.

  In particular, as shown in FIG. 9, the mounting plate 32d includes a bottom surface 32e along a plane P2 defined by the axis Y1 of the lower first cylindrical portion 32a and the axis Y2 of the lower second cylindrical portion 32b. It is out. The bottom surface 32e of the mounting plate 32d can be brought into contact with the grounding surface as necessary in the installed state of the infant's circle 1 to exhibit the function of supporting the infant's circle 1. As an example, in the cross section shown in FIG. 9, the length L5 of the bottom surface 32e is set to about 1 to 2 times the inner diameter D3 of the lower third cylindrical portion 32c.

  As a material constituting the upper joint 12 and the lower joint 32, a material known per se can be used. As an example, a resin material or a rubber material can be used. When the joints 12 and 32 are made of a resin material or a rubber material, the joints 12 and 32 exhibit flexibility, which is advantageous in terms of preventing damage to the ground plane and improving assembly. On the other hand, a material known per se can be used as a material constituting the upper pipe 11, the vertical pipe 21, and the lower pipe 31, and a resin material can be used as an example. Since the pipes 11, 21, and 31 made of a resin material can be bent somewhat, it is advantageous in that they can absorb deviations and assembly errors caused by component accuracy.

  The upper frame 10 is obtained by assembling the plurality of upper pipes 11 and the plurality of upper joints 12, and the lower frame 30 is obtained by assembling the plurality of lower pipes 31 and the plurality of lower joints 32. The vertical frame 20 is obtained by connecting the upper joint 12 and the lower joint 32 with the vertical pipe 21. The cloth-like material 40 is stretched over the upper frame 10, the vertical frame 20, and the lower frame 30 in a state where tension is applied. The cloth material 40 will be described with reference to FIGS. 10 and 11. FIG. 10 is a perspective view showing the cloth-like material 40, and FIG. 11 is an enlarged perspective view showing a part of the cloth-like material 40.

  As shown in FIGS. 10 and 11, the cloth material 40 includes a bottom cloth material 41 and a side cloth material 42 that surrounds the top of the bottom cloth material 41 in a circumferential shape. The bottom cloth material 41 and the side cloth material 42 are sewn together. Among these, the bottom cloth material 41 is supported by the lower frame 30 and is disposed in a region A <b> 2 surrounded by the lower frame 30. On the other hand, the side cloth material 42 is composed of a total of six side cloth materials 42 a located between two adjacent vertical pipes 21. Each side cloth material 42 a is located between one upper pipe 11 and one lower pipe 31 that face each other in the vertical direction. Two adjacent side cloth materials 42a are sewn together.

  The cloth-like material 40 has a plurality of pipe insertion cylinders 43 into which pipes corresponding to each are inserted. In the present embodiment, the plurality of pipe insertion cylinders 43 include a plurality of upper pipe insertion cylinders 43a into which the upper pipes 11 are respectively inserted, a plurality of vertical pipe insertion cylinders 43b into which the vertical pipes 21 are respectively inserted, and a lower pipe. And a plurality of lower pipe insertion cylinders 43c into which 31 is inserted. Each upper pipe insertion cylinder 43a is sewn on the upper part of the corresponding side cloth material 42a. Each vertical pipe insertion cylinder 43b is sewn to the two side cloth materials 42a in the vicinity of the place where the two adjacent side cloth materials 42a are sewn. Each lower pipe insertion cylinder 43c is sewn to the side cloth material 42a and the bottom cloth material 41 in the vicinity of the portion where the corresponding side cloth material 42a and the bottom cloth material 41 are sewn.

  Next, a procedure for assembling the infant circle 1 having such a configuration will be described with reference to FIGS. 12 and 13 are perspective views for explaining the assembly procedure of the infant circle 1 shown in FIG.

  First, as shown in FIG. 12, each upper pipe 11 is inserted into the upper joint 12 while passing the upper pipe 11 through the upper pipe insertion cylinder 43 a of the cloth material 40. Similarly, each lower pipe 31 is inserted into the lower joint 32 while passing the lower pipe 31 through the lower pipe insertion cylinder 43 c of the cloth material 40. Next, as shown in FIG. 13, the vertical pipe 21 is inserted into the upper joint 12 and the lower joint 32 while passing the vertical pipe 21 through the vertical pipe insertion cylinder 43 b of the cloth material 40. In this way, the upper frame 10, the vertical frame 20, and the lower frame 30 are assembled, and the infant circle 1 is obtained.

  As described above, according to the present embodiment, since the circumferential length L1 of the upper frame 10 is shorter than the circumferential length L2 of the lower frame 30, the vertical frame 20 is inclined toward the area A1 surrounded by the upper frame 10. be able to. For this reason, even if the infant moving around in the infant circle 1 pushes the upper frame 10 from the area A1 surrounded by the upper frame 10 toward the outside of the area A1, the infant tilts toward the area A1 surrounded by the upper frame 10. The vertical frame 20 functions to support this pressed force. As a result, the risk of the infant circle 1 falling can be reduced.

  Further, according to the present embodiment, the lower joint 32 has the mounting plate 32d positioned outside the region A2 surrounded by the lower frame 30, and the mounting plate 32d is the axis of the lower first cylindrical portion 32a. It includes a bottom surface 32e along a plane P2 defined by Y1 and the axis Y2 of the lower second cylindrical portion 32b. According to such a form, when the infant moving around in the infant circle 1 pushes the upper frame 10 from the area A1 surrounded by the upper frame 10 toward the outside of the area A1, the area A2 surrounded by the lower frame 30 The placement plate 32d located outside is pressed against the ground plane. Thereby, the bottom surface 32e of the mounting plate 32d is supported by the grounding surface, and the mounting plate 32d can receive the force pushed by the infant. As a result, the risk of the infant circle 1 falling can be reduced.

  Further, according to the present embodiment, the lower joint 32 further includes the lower third cylindrical portion 32c that holds the vertical pipe 21, and the axis Y3 of the lower third cylindrical portion 32c is the lower first cylindrical shape. Inclined from the direction d1 perpendicular to the plane P2 defined by the axis Y1 of the portion 32a and the axis Y2 of the lower second cylindrical portion 32b into the area A2 surrounded by the lower frame 30. According to such a configuration, the vertical pipe 21 can be held in a state where the lower joint 32 is stably tilted toward the area A1 surrounded by the upper frame 10. For this reason, the infant moving around in the infant circle 1 can stably support the force of pushing the upper frame 10 from the area A1 surrounded by the upper frame 10 toward the outside of the area A1 by the vertical pipes 21. . As a result, it is possible to further reduce the risk of the infant circle 1 falling.

  By the way, it can be considered that the two regions a1 and a2 are divided by the axis Y1 of the lower first cylindrical portion 32a extending linearly and the axis Y2 of the lower second cylindrical portion 32b extending linearly. it can. These two regions a1 and a2 are shown in FIG. That is, as shown in FIG. 14, if the intersection point where the axis Y1 of the lower first cylindrical portion 32a and the axis Y2 of the lower second cylindrical portion 32b intersect is O, two lines extending from the intersection O in a semi-linear manner Thus, one region a1 is divided, and a region other than the one region a1 can be regarded as the other region a2. As can be understood from FIG. 14, one area a <b> 1 corresponds to the area A <b> 2 surrounded by the lower frame 30, and the other area a <b> 2 corresponds to an area other than the area A <b> 2 surrounded by the lower frame 30. As described above, the axis Y3 of the lower third cylindrical portion 32c is inclined toward the region A2 from the direction d1 orthogonal to the plane P2 (see FIG. 9), and the mounting plate 32d is formed on the lower frame. It is located outside the area A <b> 2 surrounded by 30. Therefore, the axis Y3 of the lower third cylindrical portion 32c is inclined from the direction d1 perpendicular to the plane P2 into the one area a1 of the two areas a1 and a2, and the mounting plate 32d Can be regarded as being located in the other region a2 of the two regions a1 and a2. According to such a joint 32 for the infant circle 1, the pipe 21 held by the third cylindrical portion 32c can be inclined toward the side opposite to the placement plate 32d. Therefore, even when the infant moving around in the infant circle 1 to which the joint 32 is assembled applies a force to push the vertical pipe 21 toward the placement plate 32d, the placement plate 32d supports the pushed force. Function. As a result, the risk of the infant circle 1 falling can be reduced.

  Note that various modifications can be made to the above-described embodiment. For example, the upper joint 12 may be the same joint as the lower joint shown in FIG. 7 instead of the upper joint shown in FIG. Further, the relationship between the lengths and diameters of the pipes 11, 21, and 31 is an example, and can be appropriately changed according to the design. For example, the length of the upper pipe 11 is not the same as the length of the lower pipe 31 and may be different.

  Moreover, in embodiment mentioned above, as shown in FIG. 12, although the pipe 11, 21, and 31 were inserted in the upper joint 12 or the lower joint 32, it was not limited to such an example. The upper joint 12 or the lower joint 32 may be inserted into the pipes 11, 21, 31.

  15 and 16 show an example in which a suction cup 50 is further attached to the lower joint 32. FIG. In the example shown in FIGS. 15 and 16, the suction cup 50 is attached to the lower joint 32 from the side opposite to the side to which the vertical pipe 21 is connected. In particular, the suction cup 50 is attached to the bottom surface 32e of the mounting plate 32d. As the suction cup 50, a suction cup generally used in the market can be used.

  According to such a form, in the state which installed the circle 1 for infants in the grounding surface, the suction cup 50 attracts | sucks to a grounding surface. For this reason, when the infant moving around in the infant circle 1 presses the upper frame 10, the sucker 50 assists in supporting the pressed force. As a result, it is possible to further reduce the risk of the infant circle 1 falling.

  In particular, the suction cup 50 is attached to the bottom surface 32e of the mounting plate 32d. In this case, when the infant moving around in the infant circle 1 pushes the upper frame 10 from the area A1 surrounded by the upper frame 10 toward the outside of the area A1, the placement located outside the area A2 surrounded by the lower frame 30 is performed. The mounting plate 32d is pressed against the ground plane through the suction cup 50. Thereby, the mounting plate 32d is supported by the grounding surface via the suction cup 50, and the force that the mounting plate 32d is pushed by the infant can be received together with the suction force of the suction cup 50. As a result, it is possible to further reduce the risk of the infant circle 1 falling.

DESCRIPTION OF SYMBOLS 1 Infant's circle 10 Upper frame 11 Upper pipe 12 Upper joint 12a-c Upper 1st-3rd cylindrical part X1-3 Axis 20 Vertical frame 21 Vertical pipe 30 Lower frame 31 Lower pipe 32 Lower joint 32a-c Lower 1st-1st Three cylindrical parts Y1 to 3 Axis 32d Placement plate 32e Bottom surface 50 Suction cup L1 Peripheral length L2 of upper frame Peripheral length A2 of lower frame Area surrounded by lower frame

Claims (7)

An upper frame, a lower frame, and a vertical frame connecting the upper frame and the lower frame,
An infant circle, wherein the circumference of the upper frame is shorter than the circumference of the lower frame. The upper frame has a plurality of upper pipes and a plurality of upper joints respectively connecting two adjacent upper pipes.
The lower frame includes a plurality of lower pipes and a plurality of lower joints respectively connecting two adjacent lower pipes;
The infant circle according to claim 1, wherein the vertical frame includes a plurality of vertical pipes respectively connecting one upper joint and a lower joint corresponding to the one upper joint.   The infant circle according to claim 2, wherein the lower joint includes a first cylindrical portion that holds one lower pipe and a second cylindrical portion that holds another lower pipe. The lower joint has a mounting plate located outside the region surrounded by the lower frame,
The infant circle according to claim 3, wherein the placement plate includes a bottom surface along a plane defined by an axis of the first cylindrical part and an axis of the second cylindrical part. The lower joint further includes a third cylindrical portion that holds the vertical pipe,
The axis of the third cylindrical part is directed from the direction perpendicular to the plane defined by the axis of the first cylindrical part and the axis of the second cylindrical part into the region surrounded by the lower frame. The infant circle according to claim 3 or 4, which is inclined.   The circle for infants according to any one of claims 2 to 5, wherein a suction cup is attached to the lower joint from a side opposite to a side to which the vertical pipe is connected. A joint used for an infant circle constituted by assembling a plurality of pipes and a plurality of joints connecting adjacent pipes,
A first cylindrical portion for holding one pipe;
A second cylindrical portion for holding the second pipe;
A third cylindrical portion for holding the three pipes;
A mounting plate located in one of the two regions divided by the axis of the first cylindrical portion and the axis of the second cylindrical portion;
With
The axis of the third cylindrical portion is set in a direction perpendicular to a plane defined by the axis of the first cylindrical portion and the axis of the second cylindrical portion, and the axis of the first cylindrical portion and the first 2 is inclined toward the other region of the region divided by the axis of the cylindrical portion,
The mounting plate is a joint for an infant circle, including a bottom surface along a plane defined by the axis of the first cylindrical portion and the axis of the second cylindrical portion.

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