JP4095720B2 - Large display frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a frame for a large display object having an assembly connection structure for attaching and supporting a sheet-like object such as a large poster or a horizontal banner.
[0002]
[Prior art]
Conventionally, in order to support a horizontally long display object like a banner, it is supported by attaching a desired horizontally long display object (printed cloth or sheet) to a frame that is framed in a ladder shape of the required dimensions, for example. Have been to. As a frame for supporting such a display object, a frame divided in the length direction is prepared to facilitate its transportation, etc., and the display object is assembled to a predetermined size by adding it at the site of use. Is supported in a tension state by a stopper attached to the frame.
[0003]
For this reason, a frame connection structure as shown in FIGS. 5A and 5B, for example, is used as a frame for supporting the display object. That is, as a joint portion of the frame 101, both the frame members 102, 103 are arranged along two inner surfaces of the frame member 102 and the frame member 103 having the same cross-sectional shape with a L-shaped cross section to be connected. A smaller angle-shaped connecting member 104 is applied, and a plurality of small screws 105 are passed from the outside of the frame members 102 and 103 to the inside of the connecting member 104, and are each fastened and fixed by nuts 106. Has been.
[0004]
Further, FIG. 6 shows a cross-sectional view of a main part of connection in a support frame of another large display object. The support frame 110 of the display object is formed such that T-shaped grooves 112 and 112 project in the longitudinal direction at the end portion of one side and the intermediate portion of the other side inside the L-shaped cross section of the frame member 111. When the frame member 111 having such a cross-sectional shape is abutted and connected, the connecting member 104 having an angle shape smaller than each side of the frame member 111 and having a required length is applied to the inside. A method is known in which a small screw 115 is screwed into a flat nut 116 fitted in each T-shaped groove 112 from the outside of the connecting member 104 through a bolt hole and fastened.
[0005]
[Problems to be solved by the invention]
In the connection method of the conventional display object support frame as described above, the former (shown in FIGS. 5 (a) and 5 (b)) is fastened with a small screw and a nut. There is a problem that the head of the small screw appears and detracts from the beauty. In addition, when the joints of the frame members are brought into close contact with each other, the fixing machine screws must be tightened while pressing both ends of the frame members so that the gaps do not open. There is a problem that it is necessary to perform the work of pressing the screw so as to eliminate the screw and the other person must tighten the machine screw.
[0006]
Also, in the latter (shown in FIG. 6), the nuts for the fastening screws are inserted into the T-shaped grooves inside the frame member, and the fastening positions corresponding to both surfaces of the connecting member can be matched respectively. There is a problem that it is necessary and time-consuming for the operation. Furthermore, since the area that is in direct contact with the bolt (small screw) and the tightening portion by the nut is the fixing force of the joint portion, when trying to obtain the strength as the connection portion, 8 to 12 or more for fastening It is necessary to tighten with bolts and nuts. As a result, there is a problem that a lot of time is required for the tightening and removal work.
[0007]
The present invention has been made to solve such problems, and is a frame for a large display object having a connection structure that can securely fix a connection portion with a simple configuration and can increase connection strength. Is intended to provide.
[0008]
[Means for solving the problems and actions / effects]
In order to achieve the above-mentioned object, the frame of the large display object according to the present invention is:
In a frame of a large display object that includes a frame member and a connecting member that is used to butt-connect a plurality of frame members at a straight portion, and the frame member is formed into a rectangular frame,
The frame member is provided over the hook lip entire length facing the corner portion and an intermediate portion inside of one side of the distal edge inside and the other side, a groove hooked on the inside of their hook-shaped lips are formed the connecting member is required length has become more main portion with one side and the other side which is bent in an angle shape, the bent in a hook shape outwardly over the end of the other side is the length of the main portion together are has been locking edge, the other side a plurality of screw holes at required intervals in the intermediate portion of is provided with, to engage the end portion of the one side to the latching groove of the end portion of the frame member together, fitted the locking edge of the other side to engage the latching groove of the intermediate portion of the frame member, when the bolt is screwed into the screw holes draw the connecting member, the end of the one side parts and engaging an end portion of the other sides in the latching groove of the frame member And it is characterized in that it is configured such that the connecting member and the frame member is is connected and fixed.
[0009]
According to the present invention configured as described above, the end portion on one side and the end portion on the other side of the connecting member having the required length are inserted into the latching grooves of the frame member inside the frame members to be joined. Then, the end faces of both frame members to be connected are joined together, the bolts screwed into the screw holes are screwed in, and the connecting member is drawn toward the front, in other words, the fastening bolt is screwed in. by performing both the ends of the connecting member, one is pressed against the groove bottom hooked in the tip of the frame member, the other pressed against the side surface of the latching groove in the middle section of the frame member, the coupling member And the frame member are firmly fixed over the entire length of contact. In addition, the connecting member is angle-shaped and the end of the other side is bent outward to form a hook shape, so that the strength of the cross-section is increased, and the connecting member is connected without distortion due to the bending force applied when fixing the connection. The effect is that the part can be firmly supported.
[0010]
In addition, when connecting the connecting member and the frame member, the fastening force by the bolt is not a local contact but a small area, but the entire length of the connecting member can be effectively used and fixed, so with a small number of bolts It has the advantage that it can be fixed effectively and reliably and can be easily attached or detached. Moreover, since the fasteners can be prevented from appearing on the surface of the frame member, there is an effect that the aesthetic appearance is not impaired. In addition, assembling the connecting member into the frame member connection part requires only a margin in the latch groove that fits in either the horizontal or vertical direction, enabling smooth insertion work in a small area. Thus, there is an advantage that the frame can be downsized.
[0011]
A reinforcing rib is provided in the longitudinal direction between the corner portion of the frame member and the latching groove of the intermediate portion at the inner intermediate portion of the frame member, and the reinforcing rib is screwed into the screw hole of the connecting member. It is preferable to be configured such that the tip of the bolt to be abutted. In this way, when the frame members to be joined are connected via the connecting member, the frame member receives the fixing reaction force of the frame member by the connecting member without causing local deformation even if the fastening bolt is pressed. be able to.
[0012]
Furthermore, it is preferable to form a large gap between the latching grooves provided in the inner intermediate portion of the frame member. In this way, when the connecting member is pulled together by fastening with the bolt in combination with the frame member to be connected, since the gap is large in the retaining groove portion, the connecting member is moved and displaced by a corresponding amount, the connecting member is inclined, and the fastening bolt is Since the contact portion between the tip and the frame member is not parallel, the horizontal component force due to the rotation of the bolt is used to reduce the joining gap of the frame member, thereby improving the workability. In addition, in order to enhance such an effect, it is preferable to use a right-handed screw on one side and a left-handed screw on the other side with respect to the joint, in addition to determining the connection procedure.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Next, a specific embodiment of a large display frame according to the present invention will be described with reference to the drawings.
[0014]
FIG. 1 shows an overall view in which a part of a frame of a large display object according to the present embodiment is omitted. FIG. 2 is a perspective view showing the structure of the member connecting portion of the frame in a state before joining. FIG. 3 is an enlarged vertical cross-sectional view of a fastening main part in FIG.
[0015]
Shown by these figures is a specific example of a frame used to display a banner. The frame 1 has a shape having a very long length as compared with the height dimension, and is formed, for example, by connecting a frame member 2 formed by extrusion molding of aluminum to a rectangle to form a frame. In addition, the upper and lower long members are separately connected by a reinforcing member at a plurality of positions in the intermediate portion, and are retained. A banner to be displayed on such a frame 1 is tension-supported at an important point inside the frame 1 by a known locking fitting not shown.
[0016]
Since such a frame 1 has a long overall length and is made light, it is divided into at least two parts so that it can be easily handled until it is transported to a normal place of use. Therefore, the frame member 2 constituting the frame 1 is connected to each other by using the connecting member 10 at a portion where the frame member 2 is divided for use and assembled into one frame.
[0017]
As shown in FIGS. 1 and 3, the frame member 2 constituting the frame 1 is longer than the length of the side 2 b where the side 2 a forming the front part in the assembled state as the frame 1 becomes the peripheral surface. In addition, it is a mold material having an unequal side L-shaped cross section in which the tip 2c is bent inward with an inclined surface inward from substantially the same length position as the side 2b serving as the peripheral surface to the tip. The frame member 2 is formed by forming a hook-shaped lip bent inwardly at the tip edge 3 of the side 2b serving as a peripheral surface thereof, on the inner surface of the edge 3 including the hook-shaped lip. The retaining groove 4 is formed in a parallel direction. Further, a saddle-shaped lip 5 bent in a hook shape in a direction parallel to the inner side surface of the side 2a is integrally projected at the inner middle portion of the side 2a forming the front portion. A latching groove 6 is formed. In addition, a T-shaped reinforcing rib 7 is provided inside the frame member 2 at an intermediate position between the bowl-shaped lip 5 and the corner portion 2d to reinforce the side 2a forming the front portion.
[0018]
The connecting member 10 used for the connection of the frame member 2 is formed into a required size shape by press forming a steel plate, for example, and has a length dimension of at least about 8 to 10 times the insertion width with respect to the frame member 2 at the time of connection ( However, it is not limited to this value. As shown in FIGS. 2 and 3, the connecting member 10 has a thickness that can be inserted into the retaining grooves 4 and 6 of the frame member 2, and is formed by bending the main portion 11 in an angle shape over its entire length. 12 (the side corresponding to the side 2b that is the peripheral surface of the frame member 2) is bent at the tip side of the side 13 that is bent at a right angle in the direction opposite to the side 12, and further, the tip part is A locking edge 14 is formed by bending in the extension direction so as to be parallel to the side 13. Further, the fastening bolts 18 are screwed into the sides 13 of the main body 11 of the connecting member 10 at appropriate intervals on a line facing the T-shaped reinforcing rib 7 provided inside the frame member 2 when combined. A screw hole 16 is provided. In order to provide the screw hole 16, for example, a part of the connecting member 10 is pressed inward (upward in the drawing) to form a hole with a folded portion, and a screw is formed on the inner surface of the hole. Or it is good to form by means, such as welding a pipe separately and forming a screw hole in the inside, or welding a nut.
[0019]
In order to connect the frame members 2, 2 configured in this way, first, the connecting member 10 is attached to one frame member 2, and one edge portion of the connecting member 10 is placed in the retaining groove 4 inside the frame member 2. 15 is inserted into the hooking groove 6 by fitting the other locking edge 14 to the required length. In this state, when the fastening bolt 18 is screwed into the screw hole 16 provided in the main body portion 11 of the connecting member 10 and tightened, the tip of the fastening bolt 18 contacts the upper surface of the reinforcing rib 7 and the entry stops. As a result, the screw hole 16 side is retracted, and as a result, the connecting member 10 is pulled toward the side opposite to the screwing direction of the fastening bolt 18 (arrow a direction). Therefore, when the operation of further screwing the fastening bolt 18 is continued, the edge 12 of the side 12 of the connecting member 10 to be drawn comes into contact with the bottom of the latching groove 4, and the other latching edge 14 is also joined to the latching groove 6. It abuts on the inner side surface of and is locked.
[0020]
Thus, if the connecting member 10 and one frame member 2 are fixed by a plurality of fastening bolts 18 (two in the specific example), the connecting member 10 in which half is inserted and fixed to the frame member 2 first. 2, as shown in FIG. 2, the locking edge 14 and the edge 15 of the side 12 are hooked in the locking groove 6 and the edge 15 of the side 12 along the inner side of the other (right side in the drawing) frame member 2. 4 is moved to a state where the end face of the other frame member 2 to be connected is brought into close contact with the end face of the frame member 2 to which the connecting member 10 has been previously fixed. Thereafter, when the remaining fastening bolts 18 on the connecting member 10 inserted into the frame member 2 are screwed in, the latch 15 in which the one edge 15 of the connecting member 10 and the locking edge 14 are engaged in the manner described above. The connecting member 10 and the frame member 2 are fixed and connected by the reaction force of pressing against the reinforcing rib 7 by the fastening bolt 18 in contact with the bottom surface of the groove 4 and the side surface of the retaining groove 6.
[0021]
As described above, both the frame members 2 and 2 connected in this way are connected to the connecting member 10 that is inserted across the ends of both the frame members 2 and 2 by the plurality of fastening bolts 18 as described above, and the corner portion 2d on the inside. In the latching grooves 4 and 6 that open toward the bottom, a gap c provided in advance (the gap between the edge 15 of the connecting member 10 to be inserted and the bottom surface of the latching groove 4, and one surface of the latching edge 14) By being pulled by a distance (a gap with one side surface of the latching groove 6), it is fixed by the contact pressing force (frictional force) over the entire length of the both edges 14 and 15 of the connecting member 10 and the latching grooves 4 and 6. As a result, it can be firmly connected and fixed by a simple operation.
[0022]
In addition, in the connecting portion, the fastening bolt 18 is fixed while being in contact with the reinforcing rib 7 on the inner side of the frame member 2, so that the attachment portion does not appear at all on the outer surface of the frame 1 and the appearance is not impaired. . Further, by using the connecting member 10 having a structure in which the side 13 is bent outward so that the locking edge 14 is formed inside the frame member 2 as described above, The frame member 2 forms a square pipe-like cross-sectional structure on the inner side at the connection part, which works to increase the strength of the frame and is stable without bending due to external force at the connection part even if it is a long frame The effect that the state can be maintained is also obtained.
[0023]
Furthermore, when the frame member 2 is connected, both the horizontal direction and the vertical direction can be fastened simultaneously by simply screwing in the fastening bolts 18 as described above. In the specific example, it can be fastened with four bolts, and the effect of making the connection work easier can be achieved. Therefore, for example, assembly work of a large frame at an exhibition hall can be performed smoothly in a short time. When the frame 1 is disassembled, the fastening bolts 18 are loosened in the reverse order of the assembly procedure, so that they can be easily disassembled and not damaged.
[0024]
Next, FIG. 4 shows a longitudinal cross-sectional view of the main part of the frame connection in another embodiment, where (a) shows a state before fastening, and (b) shows a fastened state. It is.
[0025]
The embodiments shown in these drawings are basically the same as those in the above-described embodiment, but the fixing state of the connecting member 10 to the frame member 2A is slightly different. Accordingly, parts having the same structure as those of the above embodiment are given the same reference numerals, and detailed description thereof is omitted.
[0026]
The frame member 2A of this embodiment has a latching groove 6a formed on the inner side of a bowl-shaped lip 5a bent in a bowl shape provided in a direction parallel to the inner surface of the side 2a which is the front side of the frame 1. It was widened. The other parts have almost the same structure as that of the above embodiment. The connecting member 10 has the same shape and structure as described in the above embodiment.
[0027]
In order to connect and assemble the frame using such a frame member 2A, the connecting member 10 having a required length is inserted inside the frame members 2A and 2A to be connected in the manner described above, and the fastening bolt 18 is inserted. When the connecting bolt 10 is screwed, the edge 15 of the connecting member 10 comes into contact with the latching groove 4 of the frame member 2A by pulling the connecting member 10 by screwing the fastening bolt 18 and the screw hole 16 on the connecting member 10 side. However, in the latching groove 6a into which the other latching edge 14 is inserted, the groove width is widened and the gap c 'with respect to the gap c in the latching groove 4 is large, so that the fastening bolt 18 is screwed. The locking edge 14 of the connecting member 10 is displaced by the gap c 'in the latching groove 6a and fixed in an inclined state. At this time, the contact surface with the reinforcing rib 7 with which the end of the fastening bolt 18 abuts is gradually tilted, and a horizontal component of the rotational force of the screw is acted to move the frame member 2A horizontally by rotating the screw clockwise. It works to reduce the gap between the joints. Therefore, at the time of the assembly operation, the connecting member is first fixed to the frame member on the right side, and then the left frame member is fixed to the connecting member 10 so as to closely contact the gap between the joint portions. The effect can be demonstrated. If a right-handed fastening bolt is attached to one of the frame members to be connected and a left-handed fastening bolt is attached to the other, the above-mentioned effect can be obtained without selecting the fastening order and fastening. Of course, when the connection is released, the reverse acting force works and the removal becomes easy.
[0028]
In the above-described embodiment, the frame member used has an L-shaped cross section, but other than that, a U-shaped cross section or a U-shaped cross section is not shown, but the side on the front side in the manner described above. The connecting member similar to that of the above embodiment is provided with a retaining groove for the connecting member on the inner side of the frame and the peripheral surface side so that the fastening bolt can be screwed in from the opening side of the frame member. Members can be connected.
[0029]
Further, the connecting member 10 having a structure that does not have the above-described locking edge 14 (see FIG. 3) can be used. In this case, although not shown in the drawings, when the straight side edge portion of the connecting member is fitted into the retaining groove of the corresponding frame member and the fastening bolt is screwed in the manner described above, the connecting member fits into the retaining groove. The edge of the side not having the locking edge is drawn back (inclined) from the edge of the matching straight side as the starting point and comes into contact with the tip of the opposite saddle-shaped lip. The frame member can be fixed and connected by the contact frictional force between the front end portion of the connecting member and the side surface of the end portion of the connecting member and the latching groove engaged with the edge portion on the straight side.
[0030]
What has been described above is a frame that supports a long and slender display such as a banner. However, based on the gist of the present invention, a poster or the like with a large vertical dimension (such as A0, B0 size) is long. The present invention can be arbitrarily applied to a frame of a large display object for displaying.
[Brief description of the drawings]
FIG. 1 is an overall view showing a frame of a large display object according to the present embodiment with a part thereof omitted.
FIG. 2 is a perspective view showing a structure of a member connecting portion of a frame in a state before joining.
FIG. 3 is an enlarged vertical cross-sectional view of a fastening main part in FIG. 2;
FIGS. 4A and 4B are longitudinal sectional views of main parts of a frame connection in another embodiment, in which FIG. 4A shows a state before fastening, and FIG. 4B shows a fastened state.
5A and 5B are diagrams illustrating a connection structure in a frame of a conventional large display object, in which FIG. 5A is a perspective view of an example thereof, and FIG. 5B is a longitudinal sectional view of a fastening portion.
FIG. 6 is a cross-sectional view of a main part of a connection in a support frame of another conventional large display object.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame 2, 2A Frame member 3 Edge part 4, 6, 6a Latching groove | channel 5, 5a Spear-shaped lip 7 Reinforcement rib 10 Connecting member 11 Main part 12 of a connecting member 13 One side 13 of a connecting member The other side of a connecting member 14 Locking edge 15 Edge 16 of connecting member on the straight side 16 Screw hole 18 Fastening bolt

Claims (2)

In a frame of a large display object that includes a frame member and a connecting member that is used to butt-connect a plurality of frame members at a straight portion, and the frame member is formed into a rectangular frame,
The frame member is provided over the hook lip entire length facing the corner portion and an intermediate portion inside of one side of the distal edge inside and the other side, a groove hooked on the inside of their hook-shaped lips are formed the connecting member is required length has become more main portion with one side and the other side which is bent in an angle shape, the bent in a hook shape outwardly over the end of the other side is the length of the main portion together are has been locking edge, the other side a plurality of screw holes at required intervals in the intermediate portion of is provided with, engaging the end portion of the one side to the latching groove of the end portion of the frame member together, fitted the locking edge of the other side to engage the latching groove of the intermediate portion of the frame member, when the bolt is screwed into the screw holes draw the connecting member, the end of the one side parts and engaging an end portion of the other sides in the latching groove of the frame member Frame large display product, characterized in that said connecting member and said frame member is configured to be coupled fixedly. A reinforcing rib is provided in the longitudinal direction between the corner portion of the frame member and the latching groove of the intermediate portion at the inner intermediate portion of the frame member, and the reinforcing rib is screwed into the screw hole of the connecting member. The frame of a large display object according to claim 1, wherein the frame is configured such that a tip of a bolt to be abutted.

Images