JPH0423273B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a poster display device, and more particularly, to a poster display device in which a poster canvas (canvas) on which a pattern or the like is printed is stretched. .

[Conventional technology]

Conventionally, this type of device, although not particularly shown, has a structure in which spring members are provided at appropriate locations on the four sides of a poster canvas (canvas), and these spring members are hooked to a display frame to display the poster canvas stretched. was common.

[Problem that the invention attempts to solve]

However, with this conventional structure, the poster canvas remains stretched and cannot be adjusted to stretch, so if the poster canvas is distorted due to a defective spring member, etc. The problem was that the design was distorted and the advertising and decorative value of the poster was halved.

Furthermore, since the canvas is directly stretched over the display frame via a spring member, there are problems in that not only is it not easy to re-upholster the canvas, but the work is extremely dangerous at high places.

The present invention was made in view of such problems, and its purpose is to make it possible to adjust the distortion removal and expansion of the canvas pattern, thereby
To provide a poster display device which can uniformly and reliably stretch a canvas, thereby significantly improving the advertising and decorative value of posters and the like.

Another object of the present invention is to provide a poster display device in which canvas re-upholstery can be done easily and safely.

Another object of the present invention is to provide a poster display device suitable for external use such as a wall surface.

[Means for solving problems]

In order to achieve these objects, the present invention includes a rectangular main body frame constituted by upper and lower frame bodies and left and right side frame bodies, and a rectangular canvas tensioning device removably provided on the main body frame. a frame, canvas tensioning fittings for stretching the poster canvas provided on each of the four sides of the canvas tensioning frame, and covering the canvas tensioning fittings and covering the four sides of the canvas tensioning frame. The canvas tensioning frame is comprised of upper and lower frame bodies and left and right side frame bodies, and each frame body has a U-shaped groove having a diagonal cross section; A locking protrusion that is horizontally protruded facing the inside of both side walls forming the groove, and a locking protrusion that is diagonally disposed outside the U-shaped groove through a recess that has a U-shaped cross section, and is gently curved. and a diagonal wall portion formed in an inverted dogleg shape and having a hooking portion at the tip end of which has a substantially U-shaped cross section for hanging the poster canvas, and the canvas tensioning fittings include Inserted into the U-shaped groove in the canvas tensioning frame,
and a square adjustment bolt whose square bolt head is locked by a groove locking protrusion so as to stand up obliquely, and a side wall having a substantially U-shaped overall cross section and having an outward protrusion and opposing side wall. A substantially U-shaped groove with a diagonal cross section is provided in the section, and a canvas clamping body is inserted into the adjustment bolt so as to be movable up and down via a coil spring, and one of the canvas clamping bodies is provided with an outward protrusion of the clamping body. a clamping body having a U-shaped cross section, into which an adjusting bolt is inserted so as to be movable up and down with the lower end of the side wall being locked; While wrapping around the periphery of the canvas,
a square bar-shaped clamping body provided in the diagonal U-shaped groove of the canvas clamping body, with the lower end of the other side wall of the U-shaped clamping body being locked to the L-shaped step; a tightening nut which is screwed onto the adjustment bolt and which, when tightened, moves the canvas clamping body downward through the pressing force of the U-shaped clamping body against the rectangular rod-shaped clamping body to tension the poster canvas; It is characterized by including.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

First, the outline of the poster display device according to the present invention will be explained with reference to FIGS. 1, 4, 5, and 6.

As shown in the figure, the poster display device includes a rectangular main body frame 10 and a rectangular canvas stretching frame 20 removably attached to the main body frame 10.
, canvas tensioning fittings 50 arranged at predetermined intervals on the four sides of the tensioning frame 20 , and a poster canvas (canvas) 30 stretched on the tensioning frame 20 by these tensioning fittings 50 . It is equipped with

The main frame 10 has upper and lower frames 11, 1
1' and side frames 12, 12' are combined and fixed in a rectangular shape, and a reinforcing member 13 (or an illumination lamp, not shown) is disposed inside.

The frames 11, 11', 12, and 12' are obtained by cutting a long shape integrally molded from a light metal such as aluminum, and have the same cross-sectional shape. Diagram (upper frame 1
1) and FIG. 3 (lower frame 11').

That is, the upper and lower frames 11, 11' have flat plate parts 11a, 11'a, and flat plate parts 11a, 11'a.
semicircular recesses 11c, 11'c formed to bulge in the downward longitudinal direction of the end edges 11b, 11'b of 1'a;
In the front longitudinal direction of the recesses 11c and 11'c,
Thick edge portions 11d and 11'd extend horizontally at a portion slightly lower than the edge portions 11b and 11'b.
It has

The canvas stretching frame 20 has an upper frame 21, a lower frame 22, and side frames 23, 23' fixed together in a rectangular shape, and is removably attached to the main body frame 10.

Frames 21 and 2 that constitute the canvas stretching frame 20
2, 23, and 23' are obtained by cutting a long molded integrally made of a light metal material such as aluminum in the same manner as the main body frame 10, and the cross-sectional shape of the upper frame 21 is shown in FIG. The lower frame 22 and the side frames 23, 23' which are the same as the lower frame 22 are as shown in FIG. 3 (only the lower frame 22 is shown).

That is, the upper frame 21 includes a semicircular hollow bulge 21a that engages with the semicircular recess 11c of the main body frame 10 and whose upper surface end 21b is locked by the main frame end edge 11b, and a main body frame 10. 10 thick edge 1
A U-shaped groove 21d extends in series with the flat plate portion 21c joined on the groove 1d, a locking surface portion 21e formed inside one side wall of the groove 21d, and a locking surface portion 21e horizontally protruding from the outside of the upper end of the other side wall. The locking part 21f, the rectangular hollow part 21h which is connected with the bottom plate part 21g of the groove part 21d as a common plate part, the L-shaped part 21i formed at the lower end of the hollow part 21h, and the hollow part 21h.
A U-shaped groove 21j extending diagonally outward from the lower end of the groove 21j, and both side walls 21k of the groove 21j.
a locking protrusion 21l that is horizontally protruding from and facing inward at a substantially intermediate position; and a horizontal wall 21m that is connected to the lower end of the groove outer wall 21k;
The part connected to the horizontal wall part 21m and up to the middle part is formed in a diagonal shape horizontal to the groove side wall part 21k, and its tip part is bent slightly inwardly, and furthermore, its leading edge part is approximately outwardly bent. The lower frame body 22 has a semicircular hollow part in the upper frame body 21. There is no bulging part 21a, and a flat plate part 22a corresponding to the flat plate part 21c is extended for a long time, and a protruding piece part 22b that comes into contact with the edge part 11'b of the main body frame 11' is formed at the tip thereof. , the other configurations are the same as the upper frame body 21.

Therefore, only the reference numerals are attached and the illustrations are omitted, and the explanation thereof will be omitted.

In addition, as shown in the figure, the diagonal wall portions 21n, 22n
The wall thickness of the continuous portion with the horizontal wall portions 21m, 22m is formed to be as thick as that of the horizontal wall portions 21m, 22m, and the diagonal wall portions 21n, 22m are thick.
n is formed into an inverted dogleg shape with a gentle bend as a whole, and when the poster canvas 30 is stretched by tightening via the tensioning fittings 50, which will be described later, the diagonal wall portion 21n is formed even if a considerable tightening force is applied. , 22n are provided with sufficient mechanical strength so as not to bend. Then, the canvas stretching frame 20 engages the semicircular hollow bulging portion 21a of the upper frame body 21 into the semicircular concave portion 11c of the main body frame 10, and the upper surface end portion 21b of the canvas tensioning frame 20 is connected to the edge of the main body frame. 11b
At the same time, in the lower frame 22, the projecting piece 22b is brought into contact with the main body frame end edge 11'b, and the flat plate part 22a and the thick end edge 11' The upper frame 21 is screwed into place with a set screw 40 at the joint with the upper frame 20. By separating the semicircular hollow bulging portion 21a from the semicircular recess 11c in the upper frame 11 of the main body frame 10, the tension frame 20 can be easily removed.

The canvas tensioning fitting 50 for stretching the poster canvas 30 on the surface of the tensioning frame 20 is wound around a rectangular adjustment bolt 51, a washer 52, and an adjustment bolt 51, as shown exploded in FIG. It includes a coil spring 53, canvas clamping bodies 54 and 55 that are inserted into the bolt 51, a washer 56, a nut 57, and a canvas clamping body 58, and the canvas clamping bodies 54, 55, and 58 are integrally made of a light metal material such as aluminum. It is obtained by cutting a long molded material, and its cross-sectional shape is as shown in the figure.

That is, the canvas clamping body 54 has a U-shaped portion 54a formed with both side wall portions 54b and a connecting wall portion 54c thereof, and a U-shaped portion 54a that extends from the lower end of one side wall portion 54b toward the outside of the same side wall portion 54b. The diagonal wall portion 5 is diagonally connected to the connecting wall portion 54c side.
4d and a substantially U-shaped groove 54f formed by a side wall 54e that is parallel to the side wall 54b and is slightly more rectangular than the side wall 54b, and further has a protrusion on the other outer surface of the side wall 54b. It has a portion 54g.

Note that the inner diameter between the side wall portions 54b, 54b is the same as that of the diagonal side wall portions 21k (22k), 21k in the tension frame.
(22k) substantially equal to the outer diameter between the U-shaped portions 54a
is inscribed in the diagonal side wall portion 21k (22k) and is movable, and the outer diameter between the side wall portion 54b and the rectangular side wall portion 54e is the same as that of the diagonal side wall portion 21k (22k) in the tension frame. ) and the portions of the diagonal wall portion 21n (22n) facing parallel thereto, and the portions such as the diagonal wall portion 54b are substantially equal to the inner diameter of the diagonal wall portion 21n (22n), and integrally with the inward movement of the U-shaped portion 54a. Part 21k (22
k), the horizontal wall portion 21m (22m), and the diagonal wall portion 21n (22n).

The canvas holder 55 is formed into a U-shape by short side walls 55a and connecting walls 55b, and the inner diameter between the both side walls 55a, 55a is equal to the inner diameter of the both side walls 54b, 54b of the canvas holder 54. The inner width of the side wall portion 55a is approximately equal to the width up to the protrusion 54g of the canvas clamping body 54, and the canvas clamping body 55 is inserted inside the canvas clamping body 54. Then, the lower end of the side wall portion 55a comes into contact with the protrusion 54g.

Further, a canvas clamping body 58 inserted into the oblique U-shaped corner portion 54f of the canvas clamping body 54
has a rectangular rod-like body, and the side wall portion 55a of the canvas clamping body 55 is attached to the corner on the side wall portion 54b side.
It has an L-shaped step portion 58a that contacts.

In addition, the canvas clamping bodies 54, 55 and 58
The lengths in the longitudinal direction are all set to the same length.

These canvas clamping bodies 54, 55,
58 have a predetermined length and are equally arranged at predetermined intervals on the four sides of the canvas stretching frame 20 (see FIGS. 5 and 6).

In order to stretch the poster canvas 30 using the tensioning fittings 50 arranged in this way, the second
This is done as shown in the figure.

Although this figure shows the tensioned state in the upper frame 21, the same applies to the lower and side frames, so the explanation will be based on FIG. 2.

First, the square bolt head of the adjustment bolt 51 is faced into the U-shaped groove 21j, and both locking protrusions 21l are inserted.
to prevent the bolt 51 from coming out, and move it in the groove 21j to position it at a predetermined position.Then, the washer 52 and coil spring 53 are inserted into the bolt 51, and then a canvas of a predetermined length is secured. The clamping body 54 is inserted at the intermediate portion.

Next, the peripheral edge of the poster canvas 30 on which a picture or the like is printed is rolled up through the U-shaped hooking part 21o at the tip of the diagonal wall part 21n, and
Wrap it around the canvas clamping body 58 and insert the clamping body 58 into the U-shaped groove 54f of the clamping body 54. Next, insert the canvas clamping body 55 into the bolt 51 at its intermediate portion, and then insert the washer 56. Insert and tighten with nut 57.

When the nut 57 is tightened, the canvas clamping body 5
4 moves as shown by the imaginary line in FIG. Side wall portion 55
A line portion called a hooking portion A between the lower end of a and the L-shaped stepped portion 58a of the hooking body 58, and a hooking portion B between the corner of the hooking body 58 and the corner of the U-shaped groove 54f of the hooking body 54. By clamping the poster canvas 30 at the four sides, the poster canvas 30 can be firmly clamped without loosening, and by similar operations on the four sides, the poster canvas 30 can be made uniform without distortion, and the canvas can be damaged. The tension is secured without any problems.

To adjust the degree of distortion or expansion of the canvas pattern, etc., the tightening force of the nut 57 relative to the bolt 51 may be adjusted.

After stretching the canvas 30 in this way,
A waterproof cover plate 60 that covers the tension fitting 50 is attached to the outer surface of the four sides of the tension frame 20, in other words, to the entire outer surface of each frame body.

The waterproof cover plate 60 is obtained by cutting a long piece integrally molded from a light metal material such as aluminum, and the four sides of the top, bottom, and sides are all the same, and its cross-sectional shape is the same as that of the second one. As shown in FIG.

That is, a U-shaped groove 60a located within the groove 21d in the frame of the canvas tensioning frame 20;
A long flat plate portion 60b is connected to the flat plate portion 60b, and the T-shaped piece portion 60c is protruded from the lower surface of the flat plate portion 60b.
and a U-shaped groove 60d with a lip protruding from the lower surface of the tip of the flat plate portion 60b, and in the groove 60d,
Diagonal wall portion 2 in the frame of the canvas tensioning frame 20
A waterproof member 70 is press-fitted and fixed to the poster canvas part that is wrapped around and hung on the U-shaped hanging part 21o of 1n to maintain waterproofness and dustproofness.
The waterproof cover plate 60 has its U-shaped groove 60a facing inside the groove 21d of the tensioning frame 21, and its end edge is locked to the locking surface 21e.
f and the substantially T-shaped piece 60c are engaged with each other, and screwed with a set screw 80 at the joint between the U-shaped groove 60a and the bottom plate 21g, and the bottom plate 21g is attached.

In the poster display device configured in this way, the poster canvas 30 can be replaced by removing the setscrews 40 on the lower frame "11" side and rotating the canvas stretching frame 20 upwards. The semicircular hollow bulge 21 of the engaged upper frame 21
a from the semicircular recess 11c in the upper frame 11 of the main body frame 10 to remove the canvas tensioning frame 20 from the main body frame 10. At a location with good workability, remove the setscrews 80 and tighten the four sides. The waterproof cover plate 60 is removed, and the poster canvas 30 is replaced and stretched using the tensioning fittings 50 as described above. After the replacement tensioning, attach the canvas tensioning frame 20 to which the waterproof cover plate 60 is screwed again, and attach the semicircular hollow bulging portion 21a of the upper frame body 21 to the main body frame 1.
0 obliquely into the semicircular recess 11c of the upper frame 11 of 0, and then engage the set screw 40 on the lower frame 11' side again. is attached to the main body frame 10.

Also, when replacing interior lighting equipment or performing internal maintenance, removal and installation are performed in the same manner.

The embodiment described above is for single-sided use, but in the case of double-sided use, the cross-sectional shape of the upper frame 11 of the main body frame 10 is left-right symmetrical with a semicircular recess 11c. Then, the canvas stretching frame 20 having the above-mentioned structure, in which the poster canvas 30 is stretched through the respective tensioning fittings 50, may be similarly attached to the semicircular recesses 11c on both sides.

〔Effect of the invention〕

According to the present invention, the poster canvas is stretched on each of the four sides of the tension frame using the tension fittings, so the poster can be stretched uniformly over the entire surface and reliably without distortion. It can be firmly stretched without damaging the canvas, and the advertising and decorative value of posters and the like can be greatly improved.

In addition, distortion removal and stretching adjustment of the canvas image can be easily done by adjusting the tightening of bolts and nuts on the tensioning fittings.Moreover, these poster canvas tensioning, replacement, and stretching adjustments can be done using the main body frame. Since the installation frame can be easily removed and the work can be done in a convenient location, the work can be done reliably, quickly, and safely.

Further, according to the present invention, since the main body frame and the canvas tensioning frame are attached using a hinge structure through fitting, the tensioning frame can be easily attached and removed, and the poster canvas can of course be replaced. In addition, it is easy to replace the lighting inside the main body frame, maintain the interior, etc., and can be done in a location with good work efficiency, so these tasks can be performed safely.

Furthermore, according to the present invention, the peripheral edge of the stretched poster canvas is pressed into contact with the waterproof member attached to the waterproof cover plate, so that the intrusion of rainwater etc. is completely prevented, making it waterproof and dustproof. It has excellent properties.

Further, the canvas tensioning fitting can be positioned by moving the rectangular bolt within the U-shaped groove in the frame, and by this movement, the canvas tensioning fitting can be stretched at any position.

Furthermore, since the poster canvas is stretched so that its corners are narrow and its surface is wide, the advertising and decorative effects of posters and the like can be enhanced.

Further, according to the present invention, it has many excellent effects such as being able to be used not only as a general poster display device but also as an exterior display such as on the wall of a building.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is an overall perspective view, FIG. 2 is an enlarged vertical sectional view showing the main parts, and FIG. 3 is an enlarged exploded view of the main parts. 4 is a front view showing the stretched state of the poster canvas, FIG. 5 is a partially cutaway plan view of the same as above, and FIG. 6 is a partially cutaway view of FIG. A side view, FIG. 7 is an enlarged longitudinal cross-sectional view for explaining the state in which the canvas stretching frame is removed, and FIG. 8 is an enlarged longitudinal cross-sectional view showing another example of the present invention with the middle omitted. 10...Main frame, 11...Upper frame, 11'...
...Lower frame, 12, 12'...Side frame, 20...
... Canvas tensioning frame, 21 ... Upper frame body, 21j
...Diagonal U-shaped groove part, 21k... Side wall part, 2
1l...Locking protrusion, 21n...Diagonal wall part, 21o
...Canvas hanging part, 21p...U-shaped recess,
22... lower frame body, 23, 23'... side frame body,
30...Poster canvas, 50...Canvas tensioning fittings, 51...Square adjustment bolt, 53...
Coil spring, 54...canvas clamping body,
55...U-shaped clamp body, 57...Natsuto, 58...
... Square rod-shaped clamping body, 60 ... Waterproof cover plate, 70 ...
Waterproofing material.

Claims (1)

[Scope of Claims] 1. A rectangular main body frame constituted by upper and lower frames and left and right side frames, a rectangular canvas stretching frame removably provided on the main body frame, and the canvas. Canvas tensioning fittings for stretching the poster canvas provided on each of the four sides of the stretching frame; and Canvas tensioning fittings provided on each of the four sides of the canvas tensioning frame to cover the canvas tensioning fittings. The canvas tensioning frame is composed of upper and lower frame bodies and left and right side frame bodies, and each frame body has a U-shaped groove with a diagonal cross section and a U-shaped groove forming the groove. A locking protrusion that protrudes horizontally and faces the inside of both side walls, and a recess with a U-shaped cross section on the outside of the U-shaped groove, which is diagonal and has a gentle inverted V-shape. and a diagonal wall portion having a substantially U-shaped cross-section hanging portion at its tip for hanging the poster canvas, and the canvas tensioning fittings are formed in the canvas hanging frame. A square adjustment bolt is inserted into a U-shaped groove, and its square bolt head is locked with a groove locking protrusion so that it stands obliquely; A canvas clamping body is provided with a substantially U-shaped groove having a diagonal cross section in a side wall opposite to a sidewall having a sidewall, and the canvas clamping body is vertically movably inserted into the adjustment bolt via a coil spring; A clamping body with a U-shaped cross section and an L-shaped clamping body with a rectangular cross section, which is vertically movably inserted into the adjustment bolt with the lower end of one side wall locked in the outward protrusion of the having a stepped portion and wrapping around the peripheral edge of the poster canvas;
a square bar-shaped clamping body provided in the diagonal U-shaped corner of the canvas clamping body, with the lower end of the other side wall of the U-shaped clamping body being locked to the L-shaped step; a tightening nut which is screwed onto the adjustment bolt and which, when tightened, moves the canvas clamping body downward through the pressing force of the U-shaped clamping body against the rectangular rod-shaped clamping body to tension the poster canvas; The waterproof covering plate includes a waterproof cover plate, which is placed in pressure contact with the poster canvas portion hung on the hanging portion at a portion of the canvas tensioning frame opposite to the canvas hanging portion to maintain waterproofness, etc. A poster display device characterized by having a member.