JP4401261B2 - Portable awning frame - Google Patents

Description

  The present invention relates to a frame for a portable awning. More specifically, the frame includes a plurality of arched columns arranged in one direction and a plurality of beam members connecting the arched columns. Thus, the present invention relates to a frame for a portable awning that can be folded into a saddle-type expanded state and can be folded into a bundle-like folded state by folding these columns and girders.

  As this type of frame, the arched struts are composed of a pair of scissors-like pipe members that are connected to each other so as to be able to rotate with each other, and are foldable via a hub-like joint piece. Some joint pieces of the arch-shaped struts are obtained by hinge-connecting the ends of a pair of scissors-shaped pipe members that are crossed and rotatably connected to each other.

  In the folded state, the frame closes each end of each pipe material pair and folds and bundles adjacent pipe material pairs with the joint piece. In the expanded state, the frame connects the adjacent pipe material pairs with the joint piece. The end portions of each pair of pipe members are separated from each other, and the separated state is maintained by the locking means provided between the joint pieces facing each other.

Each of the pipe members has a circular cross section, and both pipe members are crossed in direct contact with each other and are pivotally connected by pins or rivets, and each end portion is attached to a hub-like joint piece with a blade-like attachment. Via hinges. The joint piece is formed by sandwiching a ring with the attachment between an outer half and an inner half and fastening them with bolts and nuts. Around the circumference, eight slits for turning the attachment are formed radially. ing. The arched strut is composed of a pipe material in which a plurality of pairs of pipe materials have different lengths depending on the part. The said locking means is provided between the joint pieces which each edge part of each pipe material pair opposes. This locking means engages a male lock bar provided in one joint piece and a female lock bar provided in the other joint piece. As a fixing means, a male lock bar is used. A so-called dowel provided so as to be able to protrude from the peripheral surface is protruded from an opening formed on the peripheral surface of the female lock bar (see, for example, Patent Document 1).
Japanese National Patent Publication No. 9-509234, pages 1 to 35 FIGS. 1 to 10

  However, in the above-described frame, when the arch-shaped support column and the girder member are expanded to form a saddle-type expanded state, the locking means provided at each end of each pipe material pair is coupled in order from the center portion to the ground portion. It took a lot of time and manpower to go into the expanded state and the folded state. In addition, the curtain body is attached to the joint piece on the outdoor side of the frame, but since the pair of pipe members are connected to each other so as to be able to rotate while being in direct contact with each other, When folded, the curtains could be pinched between the two pipe materials, and it was necessary to work with this in mind.

  Furthermore, pipes of different lengths must be prepared as the pipe material of the arch-shaped strut, and since the pipe material has a circular cross section, it must be connected to the joint piece via an attachment. Further, since the structure of the joint piece is complicated, the types and the number of parts are enormous. In addition, since the attachment turning slit of the joint piece is formed up to the surface to which the curtain is attached, the curtain may be pinched by the slit. Furthermore, since the dowel is used for the locking mechanism of the locking means, there is a possibility that the rattling will remain even after locking, and if a large external force is applied, the dowel may come off or the dowel part itself may fall off.

  Therefore, the present invention has a small number of parts, and the curtain body is not pinched between the pipe material or the joint piece when working in the expanded state and the folded state, and can be brought into the expanded state and the folded state in a short time with few hands. It aims to provide a frame for a portable awning.

  In order to achieve the above-described object, the present invention comprises a plurality of arched columns arranged in one direction and a plurality of beam members connecting the arched columns. It is a frame for a portable awning that can be folded into a bundled state by folding these columns and girder members while being in an expanded state of the mold, and the arched columns can cross and rotate with each other A pair of scissors-like pipe materials connected together via a hub-like joint piece so as to be foldable, and a pair of scissors-like pipe materials in which the girder members are crossed and connected to each other so as to be rotatable. In the folded state, each end of each pipe material pair is closed and each adjacent pipe material pair is connected to the above-mentioned In the expanded state, each pair of adjacent pipe members is unfolded via the joint piece, and each end of each pair of pipe members is separated, and the separated state is separated between the opposing joint pieces. In the frame for a portable awning held by a locking means provided, the pair of pipe members have the same length of a square cross section, and a clearance is provided between the pipe members by interposing a collar at the intersection of the pipe members. The joint piece includes a plate portion having a flat plate on one side surface, a connecting portion of the pipe material formed in four crosses on the other side surface of the plate portion, and each connecting portion. A bolt insertion hole penetrating from the one side surface to the other side surface at the center position, and the locking means is a joint piece facing each pipe material pair that contacts the arched column. It is characterized in that provided in the. In addition, the joint pieces facing each pair of pipe members to be grounded can be easily expanded or folded by attaching a grounding plate to the joint piece on the outdoor side and a free caster on the joint piece on the indoor side. It is preferable.

  As described above, the present invention is configured by combining a pair of pipe materials having the same length and the same square cross section and a joint piece having the same shape, so that the types and the number of parts can be reduced, Assembling man-hours and manufacturing costs can be reduced, and parts can be easily replaced. In addition, by using a square pipe as the pipe material, the cross-sectional performance can be higher than that of a round pipe of the same diameter, the weight can be reduced, and the length of the pipe material can be set longer, so that the number of parts can be reduced. Furthermore, by providing a clearance between the two pipe materials, the curtain body will not be beaten during expansion or folding work, and the expansion or folding work can be performed quickly, and the operator's fingers are sandwiched between the pipe materials during the work. It will never happen. Furthermore, since the curtain is stored in the clearance when folded, the size during storage does not become unnecessarily large.

  Moreover, the expansion or folding operation can be performed simply by engaging and disengaging the locking means between the joint pieces facing each other of the pipe member pairs that are grounded by the arch-shaped struts, so that the operation is easy and requires less manpower. Furthermore, since the ground plate is attached to the outdoor side of the joint piece facing each pair of pipe members to be grounded and the free caster is attached to the indoor side, the expansion or folding work can be performed more easily.

  Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. A portable awning 1 according to the present embodiment includes a frame 4 formed by four sets of arched columns 2 arranged in one direction and five sets of beam members 3 connecting the arched columns 2, The curtain 5 covers the frame 4. The portable awning 1 can expand each column 2 and each girder member 3 into a bowl-shaped expanded state, and fold each column 2 and each girder member 3 into a bundle-like folded state. it can.

  Each of the arched struts 2 is formed by connecting four pairs of scissors-like pipe members 6 that are crossed and connected to each other so as to be foldable via hub-like joint pieces 7, respectively. Each pipe material pair 6 is hinged at each end to a joint piece 7. Each girder member 3 is composed of a pair of scissors-like pipe members 6 that are crossed and connected to each other so as to be pivotable like the pipe member pairs 6, and each end of each pipe member pair 6 is adjacent to an arch shape. Five sets are arranged between the adjacent arched columns 2 and 2 by being hinged to the joint pieces 7 and 7 of the columns 2 and 2, respectively.

  Each pipe material pair 6 of the arch-shaped support 2 is composed of two pipe materials 6a and 6b having the same length and the same square cross section. Each pipe member 6a, 6b is formed with a bolt insertion hole 6c for cross-connecting both pipe members 6a, 6b at a substantially central portion, and a hinge connection hole 6d with the joint piece 7 at each end. The two pipe members 6a and 6b are provided with bolts 9 inserted into the bolt insertion holes 6c and 6c with a collar 8 interposed between the pipe members 6a and 6b with a clearance of about 20 mm between the pipe members 6a and 6b. And it connects so that rotation with the cap nut 10 is possible. The bolt 9 is fitted with a washer 9a and a sleeve 9b for the bolt insertion holes 6c, 6c.

  Each of the joint pieces 7 is formed by, for example, cutting and injection molding a circular plate material, and one side surface is formed as a flat plate portion 7a and the other side surface of the plate portion 7a is formed in four cross shapes. The connecting portions 7b, 7c, 7d, and 7e of the pipe material 6a or the pipe material 6b, and the bolt insertion holes 7f that are formed to penetrate from the one side surface to the other side surface at the center position of each of the connecting portions 7b, 7c, 7d, and 7e. Have. Each of the connecting portions 7b, 7c, 7d, and 7e is formed on the other side surface of the plate portion 7a so as to have a hinge connecting hole 7g for connecting the end of the pipe material 6a or the pipe material 6b. The bolt insertion hole 7f is for inserting a bolt or an eyebolt from one side of the plate portion 7a, and the other side of the bolt insertion hole 7f is formed with a large diameter so that a nut can be embedded. . The position of the hinge connection hole 7g is such that the connected pipe member 6a or pipe member 6b can be rotated from the folded position perpendicular to the plate part 7a to the unfolded position extending about 165 degrees. It is provided on the end side of 7b, 7c, 7d, 7e. Further, the hinge connecting hole 7g has a larger diameter than the connecting side surface of the pipe material so that the opposite side surface can be embedded with a nut, and the hinge connecting hole 7g extends from the hinge connecting hole 6d of the pipe material 6a or the pipe material 6b. The pipe member 6a or the pipe member 6b is hinge-connected by the bolt 11 inserted through the hinge connecting hole 7g and the nut 12 embedded in the large diameter side. The bolt 11 is fitted with a washer 11a and a sleeve 11b for the hinge connecting hole 6d. In addition, each said joint piece 7 is good also considering the plate part 7a as a square.

  Each of the arch-shaped struts 2 is formed of a total of four pipe material pairs, two pairs of pipe members 6 and 6 at both ends, and two pairs of pipe members 6 and 6 in the middle. These pipe material pairs are connected to the connecting portion 7b or the connecting portion 7d of the joint piece 7, respectively.

  That is, when the frame 1 is unfolded, the pipe material pair 6 at both ends includes a pipe member 6a whose lower half is on the outdoor side, a lower end of the pipe member 6a is connected to the connecting portion 7b of the outdoor ground joint piece 71, and a pipe whose lower half is on the indoor side. The lower end of the material 6b is connected to the connecting portion 7b of the indoor ground joint piece 72, the upper end of the pipe material 6a is connected to the connecting portion 7d of the indoor shoulder joint piece 73, and the upper end of the pipe material 7b is the outdoor shoulder. It is connected to the connecting part 7d of the joint part 74, respectively.

  Each pair of intermediate pipe members 6 has the lower end of the pipe member 6b whose lower half is on the outdoor side at the connecting portion 7b of the outdoor shoulder joint piece 74, and the lower end of the pipe member 6a whose lower half is on the indoor side. It connects with the connection part 7b of the indoor side shoulder joint piece 73, respectively. The pair of intermediate pipe members 6 and 6 are configured so that the upper half of the pipe member 6a is on the outdoor side, the upper half of the pipe member 6b is on the indoor side, and the upper ends of the pipe members 6a and 6a on the outdoor side are The upper end of the pipe material 6 a is connected to the connecting portion 7 b of the outdoor top joint piece 75, and the upper end of the other pipe material 6 a is connected to the connecting portion 7 d of the outdoor top joint piece 75. The upper ends of the pipe members 6 a and 6 a that are on the indoor side are such that the upper end of one pipe member 6 a is connected to the connecting portion 7 b of the indoor-side top joint piece 76 and the upper end of the other pipe member 6 a is connected to the indoor-side top joint piece 76. Each is connected to the portion 7d.

  The pipe member 6a, one end of which is connected to the outdoor joint pieces 71, 74, 75, is connected to the indoor joint pieces 72, 73, 76, respectively, and the indoor joint piece 72, The pipe material 6b having one end connected to 73 and 76 is connected to the outdoor joint piece 71, 74 and 75 at the other end.

  The curtain body 5 is attached to the outer surface of the outdoor ground joint piece 71, the shoulder joint piece 74, and the top joint piece 75 so as to be tensioned when the frame 4 is expanded. The curtain body 5 is attached by attaching the curtain body pressing plate 13 to the one side surface of the plate portion 7a of the joint piece 7 via the packing 13a on the outer side of the curtain body 4 and bolting. It is preferable to attach the eyebolt 14 to the remaining joint pieces 74 and 75 excluding the piece 71 with the nut 15 through the bolt insertion hole 7f. Thereby, the tension rope 16 can be taken from the eyebolt 14. Further, by inserting the eyebolt 14 into the bolt insertion hole 7f of the indoor joint pieces 72, 73, 76 and attaching the eyebolt 14 with the nut 15, or by attaching an appropriate attachment when attaching a normal bolt, For example, an instrument such as a fluorescent lamp can be attached.

  The curtain body 5 includes a main body 5a that covers the roof and sides of the frame 4, a skirt 5b that is continuous with an edge of the main body 5a, and a hook-and-loop fastener 5d, It is comprised with the sheet | seat attachment piece 5c fixed by 5d. The skirt portion 5b is folded back to the outside during expansion and serves to prevent rainwater from entering the indoor side.

  Each of the arch-shaped struts 2 is provided with a locking means 18 that holds the expanded state of the frame 4 only between the outdoor grounding joint piece 71 and the indoor grounding joint piece 72. The locking means 18 includes a male lock bar 19 provided in the outdoor ground joint piece 71 and a female lock bar 20 provided in the indoor ground joint piece 72.

  The male lock bar 19 is inserted through the bolt insertion hole 7f to attach the curtain body 5, curtain body pressing plate 13 and ground plate 21 to one side surface of the plate portion 7a of the outdoor ground joint piece 71. The bolts 22 are fixed to the central portions of the connecting portions 7b, 7c, 7d, and 7e. The female lock bar 20 is connected to the connecting portions 7b, 7c, 7d, and 7e by bolts 22 inserted into the bolt insertion holes 7f in order to attach the free casters 23 to one side of the indoor ground joint piece 72. It is fixed to the center part. The ground plate 21 includes a mounting portion 21a to the joint piece 7 and a grounding portion 21b bent by 90 degrees from the mounting portion 21a. A peg hole 21c for driving a peg 24 into the grounding portion 21b. Is formed.

  The male lock bar 19 has a female threaded portion 19a for screwing the bolt 22 on the proximal end side and a male engaging portion 19b on the distal end. The female lock bar 20 has a female threaded portion 20a for screwing the bolt 22 on the proximal end side and a female engaging portion 20b on the distal end. The female engagement portion 20b is arranged such that a locking ball 20d can be projected and retracted in a plurality of holes in the peripheral wall of the insertion tube 20c of the male engagement portion 19b, and the locking ball is disposed on the outer periphery of the insertion tube 20c. A ring 20f formed with a protrusion 20e that pushes 20d to the inner periphery of the insertion cylinder 20c is urged toward the distal end by a spring 20g. The ring 20f is slid toward the proximal end, and the insertion cylinder 20c is moved to the insertion cylinder 20c. By inserting the male engagement portion 19b and releasing the ring 20f, the ring 20f is moved to the tip side by the urging force of the spring 20g, and the locking ball 20d is inserted into the insertion cylinder 20c by the protrusion 20e. It is pushed out to the inner periphery, and engages with a concave groove 19c provided around the outer periphery of the male engaging portion 19b to be locked. To release the lock, the ring 20f is slid toward the base end, the locking ball 20d can be moved in the outer peripheral direction, and the male engagement portion 19b is pulled out from the insertion tube 20c. The engagement / disengagement of the male lock bar 19 and the female lock bar 20 uses a general hose joint mechanism, so that the male lock bar 19 and the female lock bar 20 are securely locked without any play.

  Next, the case where the frame 4 configured as described above is set to the folded state and the case where the frame 4 is set to the expanded state will be described. In the folded state, of the pipe members 6a and 6b of the pipe member pairs 6 at both ends where the engagement between the male lock bar 19 and the female lock bar 20 is released, the pipe member 6a to which the ground plate 21 is attached. When the pipe member 6a is rotated so that the lower end of the pipe member 6b is overlapped with the upper end of the pipe member 6b, each pair of pipe members 6 adjacent to each arch-shaped column 2 is folded back by the joint piece 7 and each girder member The pipe members 6a and 6b of the three pipe member pairs 3 spread around the bolts 9 and are folded back by the joint pieces 7, and as shown in FIG. And each pipe member pair 6 of each girder member 3 is in a bundle-like folded state, and each said free caster 23 is in an upright state in contact with the ground. In this state, the curtain body 5 is attached to the outer surfaces of the outdoor ground joint piece 71, the outdoor shoulder joint piece 74, and the outdoor top joint piece 75 which are on the upper side in FIG. The upper half pipe material pair 6 is folded and stored. At this time, the respective folding casters 23 attached to the indoor-side ground joint pieces 72 can be easily folded by a small number of hands.

  When the folded state is changed to the expanded state, as shown in FIG. 3, the pipe members 6a and 6b of each pipe member pair 6 at both ends of each arched column 2 are pulled out in the direction in which the arched column 2 is deployed. The arched struts 2 are pulled out so that the distance between them is increased. And each male type | mold between the said outdoor side ground joint piece 71 and the said indoor side grounding joint piece 72 in the state which each pipe material pair 6 of each arch-shaped support | pillar 2 and each pipe material pair 6 of each girder member 3 expanded. The lock bar 19 and each female lock bar 20 are coupled to maintain the separated state of the end portions of the pipe members 6 a and 6 b of each pipe member pair 6. At this time, each flexible caster 23 attached to each indoor-side grounding joint piece 72 can be easily expanded with little manual work.

  As a result, the frame 4 is in a bowl-shaped expanded state, and the curtain body 5 covering the frame 4 is expanded in a tensioned state, so that the portable awning 1 is formed in a bowl shape. Then, the pegs 24 are driven into the ground and fixed to the peg holes 21c of the respective ground plates 21 located on the upper surface of the skirt portion 5b of the curtain body 5, and the outdoor shoulder joint piece 74 and the outdoor top joint The pulling rope 16 from the eyebolt 14 of the piece 75 is taken and its tip is fixed to the ground.

  Thus, the frame 4 of the portable awning 1 is configured by combining the two pipe members 6a and 6b having the same length and the same square cross section and the joint piece 7 having the same shape. The number and number of points can be reduced, and the bolts, nuts, collars, washers, etc., to which these are assembled can be configured with commercially available general-purpose products, reducing assembly man-hours and manufacturing costs and making it easy to replace parts. is there. In addition, by making the two pipe members 6a and 6b into square pipes, the cross-sectional performance can be higher than that of a round pipe of the same diameter, the weight can be reduced, and the length of the pipe member can be set longer, so that the number of parts can be increased. Can be reduced. Further, by providing a clearance between the two pipe members 6a and 6b, the curtain body 5 is not beaten during the expansion or folding operation, and the expansion or folding operation can be performed quickly, and between the pipe materials 6a and 6b during the operation. The operator's fingers are not caught between the two. Further, since the curtain is stored in the clearance when folded, the size during storage does not become unnecessarily large. Furthermore, since the plate portion 7a covers between the connection position of the pipe members 6a and 6b of the joint piece 7 and the attachment position of the curtain body 5, the curtain body 5 is not beaten during expansion or folding work.

  Moreover, the expansion or folding operation can be performed simply by engaging / disengaging the male lock bars 19 and the female lock bars 20 between the outdoor ground joint piece 71 and the indoor ground joint piece 72. It is easy and requires little manpower. Furthermore, since the grounding plate 21 is attached to the outdoor grounding joint piece 71 and the free caster 23 is attached to the indoor grounding joint piece 72, the expansion or folding work can be performed more easily.

  In addition, by using square pipes for the two pipe members 6a and 6b, no attachment is required for the connection with the joint piece 7, and the back-to-back connection can be suppressed. And the roll of the entire frame 4 can be reduced. Further, by attaching the curtain body 5 so as to be tensioned when the frame 4 is in the expanded state, the horizontal motion of the entire frame 4 can be reduced without providing a brace or the like due to the tension of the curtain body 5, and the curtain body 5 can be reduced. Since it is difficult to form dredging, rainwater does not accumulate and the rain finishes well, and the curtain 5 is prevented from fluttering with the wind. Furthermore, since the curtain body 5 is attached to the joint piece 7 on the outdoor side with the eyebolt 14, the tension rope 16 can be taken directly from the frame 4, which is preferable in terms of strength. Further, by attaching eyebolts 14 and attachments to the joint piece 7 on the indoor side with bolts, the indoor device can be directly attached to the frame 4 and can also be suspended from the collar 8 between the pipe members 6a and 6b.

Perspective view showing the expanded state of the frame Perspective view showing the folded state of the frame Perspective view showing the frame during development Perspective view of a portable awning with part of the curtain in the middle of deployment The perspective view which shows the expansion state of the portable awning which notched a part of curtain Enlarged perspective view showing the intersection of both pipe materials Enlarged exploded perspective view showing the intersection of both pipe materials The perspective view which shows the expansion state of a frame grounding part An enlarged perspective view showing an expanded state of the frame grounding portion The perspective view which shows the connection of each pipe material of a frame top part Exploded perspective view showing attachment structure of curtain body to joint piece The perspective view which shows the attachment structure of the curtain to a joint piece from the indoor side The exploded perspective view which shows the connection structure of a joint piece and pipe material from the plate part side The perspective view which shows the connection structure of a joint piece and a pipe material from the plate part side The exploded perspective view which shows the connection structure of a joint piece and a pipe material from the connection part side The perspective view which shows the connection structure of a joint piece and a pipe material from the connection part side Exploded perspective view showing mounting structure of male lock bar Exploded perspective view showing mounting structure of female lock bar Perspective view of male lock bar and female lock bar Cross section of male lock bar and female lock bar Sectional view of the male engagement part and the female engagement part Partially cutaway perspective view showing the end of the curtain Sectional view showing the edge of the curtain

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Portable awning, 2 ... Arch-shaped support | pillar, 3 ... Girder member, 4 ... Frame, 5 ... Curtain body, 6 ... Pipe material pair, 6a, 6b ... Pipe material, 7 ... Joint piece, 7a ... Plate part, 7b , 7c, 7d, 7e ... connecting portion, 7f ... bolt insertion hole, 8 ... collar, 18 ... locking means, 19 ... male lock bar, 20 ... female lock bar, 21 ... ground plate, 23 ... universal caster

Claims (2)

It consists of a plurality of arched columns arranged in one direction and a plurality of girders connecting each arched column, and these columns and girders are expanded into a saddle-shaped expanded state. It is a frame for a portable awning that can be folded into a bundle-like folded state, and the arch-like struts are made of a pair of scissors-like pipe members that are crossed and connected to each other in a hub shape. The pair of spar-like pipe members connected to each other so as to be foldable with each other are connected to each of the arch-shaped struts. In the folded state, each end of each pair of pipe members is closed and each adjacent pair of pipe members is folded back and bundled by the joint piece. In the state, each pair of adjacent pipe members can be developed through the joint piece, and each end of each pair of pipe members can be separated, and the separated state can be held by a locking means provided between the opposing joint pieces. In the frame for a portable awning, the pair of pipe members are of the same length with a square cross section, and are rotatably connected with a clearance between both pipe members with a collar interposed at the intersection of both pipe members, The joint piece includes a plate portion having a flat plate on one side surface, connecting portions of the pipe material formed in four crosses on the other side surface of the plate portion, and other portions from the one side surface to the central position of each connecting portion. A bolt insertion hole formed through the side surface, and the locking means is provided between the joint pieces facing each other of the pipe material pairs to be grounded on the arch-shaped column. Tent frame. The joint piece facing each of the pipe material pairs to be grounded has a grounding plate attached to a joint piece which is an outdoor side, and a universal caster is attached to the joint piece which is an indoor side, respectively. Portable awning frame.

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