JP4740402B1 - easel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easel that is made lightweight as a portable easel, that can be simply assembled/stored and stably mounted with a drawing board such as a sketchbook and a canvas, and that is so small and light as to take no large space for storing. <P>SOLUTION: The easel 10 on which a drawing board 80 or a top plate is placed, includes: a plurality of rod-shaped easel legs 1, 2, and 3; a plurality of through-holes 4, 5, and 6 perpendicular to the axes of the easel legs and penetrating at prescribed positions; a plurality of bar springs 30, 31, and 32 inserted into the through-holes and formed with the wires connecting the easel legs; and center restraining members 20 and 21 restraining the center part of the plurality of easel legs 1, 2, and 3. In the easel, when the plurality of easel legs are deployed, the plurality of bar springs are curved in a convex shape, so that the plurality of easel legs are fixedly connected to each other. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention is an easel used for sketching, where a plurality of easel legs with a central portion restrained are deployed to place a drawing board such as a sketch book or canvas, or an art craft such as a painting, sculpture or jewelry. The present invention relates to an easel that can be used as a pedestal to decorate and is versatile and can be easily assembled and stored.

  Conventionally, when sketching outdoors, a sketch book, a canvas, a portable easel, etc. are transported, a portable easel is assembled at a favorite place, and a sketch board, a drawing board such as a canvas, is placed on the sketch. Therefore, the portable easel is required to be small, light and easy to assemble, but it is too inconvenient to carry a commercially available wooden portable easel. A camera tripod is often used.

  For example, as shown in FIG. 6, in order to reduce the weight of the easel, a thin iron plate 102 is provided on the back surface of the drawing board 101, and a drawing board support base to which a magnet is attached is provided on the camera platform 107 of the camera tripod 112 to attract the drawing board iron plate. A sketch easel drawing board set is disclosed in which the handle 113 of the camera platform 107 is operated to adjust the angle of the drawing board 101 (see, for example, Patent Document 1).

Utility Model Registration No. 3139462

  However, the conventional portable easel has a problem that it is too heavy to carry and has a large shape and cannot be easily carried.

  Also, the easel using a camera tripod is inconvenient in its weight and size, and the angle adjustment handle for the camera platform is located on the back side of the drawing board, making it difficult to make fine adjustments to the drawing board angle. is there.

  The present invention has been made focusing on the above-mentioned problems. In order to make sketches using watercolor etc. easily outdoors, the weight of the easel that is particularly problematic can be reduced and can be easily assembled anywhere. , Multiple easel legs constrained at the center can be expanded into a single-leaf hyperboloid, allowing the drawing board such as a sketch book or canvas to be placed stably, and the shape when storing the umbrella closed An object of the present invention is to provide a lightweight easel that can be stored without taking up space by becoming a bar shape like this.

  Also, using the structure of the easel with the central part restrained, an advertising stand or a ceiling where a panel or jewelry such as a poster or painting is hung on a bar spring that connects and fixes the expanded easel legs to each other. An object of the present invention is to provide a versatile easel that can be used as a pedestal for placing arts and crafts such as vases and sculptures on which boards are placed to put artificial flowers and flower arrangements.

  In order to achieve the above-mentioned object, the present invention has the following configurations (1) to (5).

  (1) An easel on which a drawing board or a top board is placed, a plurality of rod-shaped easel legs, and a plurality of through-holes that are perpendicular to the central axis of the easel legs and penetrated at predetermined positions; A plurality of bar springs formed of wire rods inserted into the through holes and connecting the easel legs; and a center restraining member for restraining a central portion of the plurality of easel legs, and deploying the plurality of easel legs. The easel is characterized in that the plurality of easel legs are connected and fixed to each other by bending the plurality of bar springs in a convex shape.

  (2) The center restraining member includes a fixed clamp that bundles and restrains the plurality of easel legs, and an opening restriction ring that restricts the deployment angle to an arbitrary angle when the plurality of easel legs are deployed. The easel according to (1) above, which is characterized.

  (3) The plurality of easel legs are closely attached so as to cover the plurality of through-holes penetrating therethrough, and fixed springs that sandwich and restrain the plurality of bar springs inserted into the through-holes are fitted. The easel according to (1) or (2) above, wherein

  (4) In any one of the above (1) to (3), the plurality of easel legs further includes an extension means connected to an end of the easel leg to extend the length thereof. The easel described.

  (5) The above-mentioned (1) to (1), wherein arts and crafts are placed on the top plate, or paintings, panels, or jewelry are suspended from the plurality of bar springs for connecting and fixing the plurality of easel legs. The easel according to any one of (4).

  According to the present invention, in order to be able to easily sketch outdoors using watercolor etc., the weight of the easel which is particularly problematic is reduced, and it can be easily assembled and stored anywhere, and a plurality of parts whose central part is constrained The easel leg can be developed into a single-plane hyperboloid, and a drawing board such as a sketch book or canvas can be placed stably. In addition, it has an easel leg extension function that allows the angle of the placed drawing board to be easily adjusted, and since the shape when stored is a stick, it can provide a small and lightweight easel that is convenient to carry without taking up space. .

  Also, using the structure of the easel with the central part restrained, an advertising stand or a ceiling where a panel or jewelry such as a poster or painting is hung on a bar spring that connects and fixes the expanded easel legs to each other. It is possible to provide a versatile easel that can be used as a pedestal on which a plate is placed to place artificial crafts such as vases and sculptures.

(A) The perspective view which expanded the easel which concerns on a present Example in the shape of a single leaf hyperboloid, (b) The figure which shows the state which accommodated the easel (A) Functional diagram of fixed clamp, (b) Plan view of fixed clamp, (c) Cross section of opening limiting ring, (d) Plan view of opening limiting ring, (e) Front view of opening limiting ring with adjustment function, (F) Plan view of the aperture limiting ring with adjustment function (A) Diagram for explaining the functions of the easel bar spring and the fixed spring, (b) Functional diagram of the bar spring, (c) Functional diagram of the fixed spring, (c) The unfolding operation of the easel leg and the bar spring Figure The figure which shows the additional function of the easel which concerns on a present Example (A) The figure which shows the usage example of the additional function of an easel, (b) The figure which shows the example which utilized the easel as a jewelry base, (c) The figure which shows the example which utilized the easel as an advertising base A perspective view of a conventional easel

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a configuration of an easel 10 according to the present embodiment. A state in which central portions of a plurality of easel legs 1, 2, and 3 are restrained by a central restraining member and developed into a one-leaf hyperboloid shape, and a state in which the easel 10 is accommodated. FIG. In order to simplify the description, the shape and the number of legs of the easel legs constituting the easel 10 will be described with three legs made of a pipe material having a circular cross section.

  Note that the easel legs that make up the easel are composed of three or more legs and three or more legs depending on the size of the drawing board and decorating arts and crafts. It is not limited. In addition, the shape of the easel leg is formed of a rod having a circular or polygonal cross section, and the material used is made of wood, metal material such as lightweight aluminum, plastic material such as polycarbonate resin, carbon resin, etc. . When pipe material is used for weight reduction, a core material may be inserted into the pipe to increase the strength. Therefore, the shape and material of the easel leg vary depending on the application and the material used. It does not limit the invention.

  As shown in FIG. 1 (a), the rod-shaped easel legs 1, 2, and 3 constituting the expanded easel 10 are attached with stone bumps 9 at the ends in contact with the ground as required, and the other end. A protective cap 7 having elasticity to support the back surface of the drawing board 80 is attached to the part. The center restraining members for restraining the easel legs 1, 2 and 3 are a fixed clamp 20 formed of an elastic material for bundling and restraining the easel legs 1, 2 and 3, and the easel legs 1 and 2 which are developed into a single leaf hyperboloid shape. , 3 includes an aperture limiting ring 21 that limits the expansion angle. The center restraining member is locked so as to be movable in the axial direction of the easel legs 1, 2, 3, and the restraining position can be arbitrarily changed according to the inclination and size of the placed drawing board 80. The attachment position of the opening limiting ring 21 may be installed at any position above or below the fixed clamp 20.

  Each of the easel legs 1, 2, 3 is provided with through-holes 4, 5, 6 penetrating at right angles to the central axis of the easel leg at two positions at the upper end on the protective cap 7 side. Yes. The distance from the upper end to the through hole needs to be determined in consideration of the mounting width of the protective cap 7 and a mounting bracket (described in FIG. 4) described later.

  The easel legs 1, 2, 3 whose central portions are constrained by a central constraining member constitute a single leaf hyperboloid with two triangular pyramids facing each other with the fixed clamp 20 as a boundary, and bar springs constituting each side of the upper triangular pyramid The long sides of 30, 31, and 32 are inserted into the through holes 4, 5, and 6 and passed in the horizontal direction. The bar springs 30, 31, 32 passed in the horizontal direction are constrained by the through holes 4, 5, 6 penetrating at right angles to the inclined easel legs and curved in a convex shape. The joints of the bar springs 30, 31, 32 and the through holes 4, 5, 6 are restricted in movement of the easel legs 1, 2, 3 due to the drag generated by the bending of the bar springs 30, 31, 32. Thus, a frictional force for locking is generated.

  As a result, it is possible to fix the deployment angle of the easel legs 1, 2, and 3 according to the size of the drawing board 80 such as a sketch book, and the easel legs 1, 2, and 3 are independently moved in the axial direction. The angle at which the drawing board 80 is placed can be freely adjusted.

  For example, when it is desired to incline the drawing board 80 such as a sketch book placed on the easel 10, the contact portion between the protective caps 7 a and 7 b of the easel legs 1 and 2 and the drawing board 80 shown in FIG. By pushing downward, the easel legs 1 and 2 are pushed down, the easel leg 3 side is raised, and the easel 10 can be inclined.

  The bar springs 30, 31, 32 are made of elastic steel wire, carbon, plastic or other wire material formed in a straight or L shape, and safety and detachment prevention are provided at both ends of the rod spring. For convenience, traction rings 30a, 30b, 31a, 31b, 32a, 32b are provided. When the bar springs 30, 31, 32 are bent, a strong repulsive force is generated due to the elasticity of the spring material, and this repulsive force becomes a drag of the joint portion with the through holes 4, 5, 6.

  Further, as a method for further enhancing the effect of restricting and locking the movement of the easel legs 1, 2, 3, a fixing formed by a close coil spring so as to cover the through holes 4, 5, 6 of the easel legs 1, 2, 3 The springs 8a, 8b, 8c are fitted. By connecting the bar springs 30, 31, 32 horizontally between the spring wires of the fixed springs 8 a, 8 b, 8 c at the connecting portions of the bar springs 30, 31, 32 that are horizontally passed and the through holes 4, 5, 6, The restoring force of the spring wire works to press the bar springs 30, 31, 32 from above and below to become a drag force that restrains the movement in the horizontal direction.

  FIG. 1 (b) shows the easel 10 in the housed state, where the connecting portions of the easel legs 1, 2, 3 are gathered on the short sides of the L-shaped bar springs 30, 31, 32 and bundled. Along with the long sides of the bar springs 30, 31, 32 along 2 and 3, they are locked between the opening limiting ring 21, or bundled with rubber bands or hook-and-loop fasteners, etc. Can do. In the case of the straight bar springs 30, 31, 32, the easel legs 1, 2, 3 are gathered and bundled at one end of the bar spring, the long bar spring is bent and the other end is connected to a rubber band or surface. Lock and store it together with the easel legs 1, 2, 3 with fasteners.

  The through hole of the easel leg is drilled on the stone thrusting side of the lower part of the easel leg and a bar spring is inserted, or the top and bottom ends of the easel leg are drilled and the bar spring is inserted. May be.

  The functions of the fixed clamp 20 and the opening limiting rings 21 and 22 constituting the center restraining member of the easel 10 shown in FIG. 2 will be described. The fixed clamp 20 and the opening restricting rings 21 and 22 are restraining members that restrain the center portions of the easel legs 1, 2, 3 to expand into a one-leaf hyperboloid shape, restrict the deployment angle, and stabilize the deployment of the easel 10. is there.

  2A and 2B are a front view and a plan view of the fixed clamp 20, and the annular fixed clamp 20 bends a close-contact coil spring, which is a kind of tension coil spring, into an annular shape, and both ends of the close-contact coil spring. The connecting portion 20a provided on the rim is connected, and the easel legs 1, 2, and 3 are inserted into the formed ring. By inserting the easel legs 1, 2, and 3, the restoring force that the stretched contact coil spring tries to return to the original is used as the restraining force F that tightens the easel legs 1, 2, and 3.

  The rod-shaped easel legs 1, 2, 3 constrained at the central portion are expanded into a single leaf hyperboloid, and the expanded easel legs 1, 2, 3 are moved by the strong restraining force F of the fixed clamp 20 attached. It does not fall off easily. Further, by moving the restraining position of the fixed clamp 20 up and down, the width of the mounting surface formed on the upper portions of the easel legs 1, 2, 3 developed in a single leaf hyperboloid shape can be changed. The elastic material forming the fixed clamp 20 may be formed of rubber or resin such as O-ring in addition to the tension coil spring described above.

  Further, as a measure for preventing the bundled easel legs 1, 2, 3 from slipping off, in order to increase the friction between the easel legs 1, 2, 3 and the fixed clamp 20, the outer sides of the respective easel legs 1, 2, 3 are arranged. A resin cover may be attached to increase the degree of adhesion, and the attached resin cover also has a protection function to prevent the easel legs 1, 2, and 3 from rubbing against each other and being damaged.

  FIGS. 2C and 2D are a cross-sectional view and a plan view of the opening limiting ring 21. The structure of the opening limiting ring includes an elastic material 21b formed in an annular shape that comes into contact with the easel leg and a connecting band 21a that fixes the diameter. The opening limiting ring 21 formed in an annular shape is made of an elastic material 21b such as a spring, resin, or rubber having elasticity inside, and an annular metal or hard material that is fitted to the outside of the elastic material 21b and fixes the diameter. It is composed of a resin connection band 21a.

  When the easel legs 1, 2, 3 are deployed in the shape of a single leaf hyperboloid around the fixed clamp 20, the diameter of the easel legs 1, 2, 3 is expanded by fixing the diameter with the connecting band 21 a of the opening limiting ring 21. This restricts the expansion angle inclined to the angle.

  However, even if the opening restriction ring 21 has a fixed deployment angle of the easel leg, the restraining position is moved up and down together with the fixed clamp 20 that restrains the easel legs 1, 2, 3, so that the easel legs 1, 2, The width of the placement surface can be changed in accordance with the size of the drawing board 80 such as a sketch book placed on 3. For example, if the restraining position is moved upward, the placement surface of the drawing board 80 becomes narrower and the ground contact surface becomes wider.

  FIGS. 2 (e) and 2 (f) show an opening limiting ring 22 having an adjustment function that allows the diameter of the opening limiting ring to be adjusted. A compression coil spring having an elastic material 22a with a space between spring wires is used. The compression coil spring includes a metal or resin connection band 23b attached in an annular shape and an adjustment fitting 23 having an adjustment knob 23a capable of changing the length of the connection band 23b. Expansion of easel legs 1, 2 and 3 that expand into a single leaf hyperboloid by rotating the adjustment knob 23a to compress the compression coil spring by compressing the length of the connecting band 23b and changing the diameter of the opening limiting ring 22 The angle can be changed.

  The opening restriction ring 22 with an adjustment function can be used without changing the restraining positions of the fixed clamp 20 and the opening restriction ring 22 that restrain the easel legs 1, 2, 3 when placing a drawing board 80 such as a sketch book of different sizes. By changing the diameter of the opening limiting ring 22 with the adjustment function, the deployment angle of the easel legs 1, 2, 3 can be adjusted according to the size of the drawing board 80 such as a sketch book.

  With reference to the unfolded easel 10 shown in FIG. 3, the function of locking the bar springs 30, 31, 32, the through holes 4, 5, 6 and the fixing springs 8a, 8b, 8c will be described.

  As shown in FIG. 3 (a), there are through holes 4a, 4b, 5a, 5b drilled in the respective easel legs 1, 2, 3 at predetermined positions of the tips of the easel legs 1, 2, 3. Bar springs 30, 31, 32 curved in a convex shape are passed through 6a, 6b. Further, the fixing springs 8a, 8b, 8c, which are closely attached so as to cover the through holes 4, 5, 6 of the respective easel legs 1, 2, 3, are arranged between the spring springs of the fixing spring 8, the rod springs 30, It is installed with a structure sandwiching 31 and 32.

  The locking function between the easel leg 1 and the bar spring 30 shown in FIG. 3 (b) is such that when the deployed easel leg 1 is inclined, the through hole 4a penetrating at right angles to the central axis of the easel leg 1; At the joint with the bar spring 30 inserted into the through hole 4a, a force to bend the horizontally connected bar spring 30 is applied by tilting the adjacent easel legs 1 and 2, and the bar spring 30 is bent convexly. . The inclined through-hole 4a is subjected to a drag force due to the repulsive force of the bar spring 30 that attempts to return the curved bar spring 30 to its original state. When the easel leg 1 is moved, a frictional force generated by the drag exerts a locking function that prevents the easel leg 1 from moving. Further, since the same drag is generated in the bar spring 32 and the through hole 4b having the same structure and exhibits a locking function that prevents the movement of the easel leg 1, the easel leg 1 can be fixed at an arbitrary position.

  The fixed spring 8a fitted to the easel leg 1 shown in FIG. 3C has a locking function by the repulsive force of the above-described through holes 4a and 4b of the easel leg 1 and the bar springs 30 and 32 curved in a convex shape. Further, the structure is further reinforced. The fixed spring 8a formed by the close contact coil spring and the bar spring 30 inserted by pushing between the spring wires are subjected to a restoring force that causes the spring wire of the close contact coil spring to return to the original state from above and below. Thus, the frictional force generated by the drag exerts a locking function that prevents the easel leg 1 from moving in the horizontal direction. In addition, since the drag force of the close contact coil spring is also generated between the bar spring 32 and the fixed spring 8a that are passed through the through hole 4b of the same easel leg 1, the relationship that hinders the movement of the easel leg 1 in the horizontal direction. Demonstrate the stopping function.

  The same applies to the other easel legs 2 and 3, and the same drag acts on the contact portions of the rod springs 31 and 32, the through holes 5 and 6 and the fixed springs 8b and 8c that are curved in a convex shape. A strong frictional force is generated between the easel legs 1, 2, 3 and the curved bar springs 30, 31, 32 when deployed so that the movement in the horizontal direction is prevented. Can be locked.

  When the easel legs 1 and 2 shown in FIG. 3D are expanded, when the easel legs 1 and 2 are expanded left and right, the through holes 4a and 5a of the easel legs 1 and 2 and the curved bar spring 30 The frictional force of the joint and the frictional force of the fixed spring 8a sandwiching the bar spring 30 are combined to generate a strong frictional force G that hinders movement. The frictional force G causes the easel legs 1 and 2 to move left and right. A strong locking function that can be expanded and connected and fixed to each other at any position works.

  Since the same frictional force G is generated in the other bar springs 31, 32, the easel legs 1, 2, 3 are locked at arbitrary positions on the bar springs 30, 31, 32, and the deployed easel legs 1, 2 are deployed. , 3 can be connected and fixed to each other.

  The generation of the frictional force G is determined by the thickness and repulsive force of the bar springs 30, 31, 32, and the elastic force of the fixed springs 8a, 8b, 8c, and greatly affects the operability when the easel 10 is deployed / stored. . When the repulsive force of the bar springs 30, 31, 32 and the frictional force G due to the elastic force of the fixed spring 8 are too weak, the operability at the time of deployment / storage is improved, but the easel 10 is expanded and a heavy sketch When the drawing board 80 such as a book is placed, the easel legs 1, 2, and 3 are inadvertently spread and the stability is deteriorated. On the other hand, if the frictional force G generated by the bar springs 30, 31, 32 and the fixed spring 8 is too strong, the operability at the time of unfolding / storing deteriorates, but the easel 10 is unfolded and the drawing board 80 such as a heavy sketch book or the like. The stability when placed is improved.

  Therefore, if the thickness and repulsive force of the bar springs 30, 31, 32 and the elastic force of the fixed springs 8a, 8b, 8c are appropriately selected in accordance with the size, weight, etc. of the placed drawing board 80, the operability is improved. And the easel 10 satisfying both stability and stability can be provided.

  For example, the easel legs 1, 2 and 3 are made of aluminum pipe material having a diameter of 6 to 10 mm and a length of 40 to 60 cm. The rod springs 30, 31 and 32 have a diameter of 1 to 2 mm and a repulsive force of about 0.5 kg. As a result, the easel 10 which can satisfy both operability and stability can be produced.

  In addition, since the weight of the created easel 10 is as light as 200 to 300 g, it is so light that it cannot be compared with a conventional portable easel or camera tripod, so when carrying it outdoors such as a sketch trip drawn with watercolor etc. It is possible to provide a small and lightweight easel 10 having the best deployment / storage operability. In particular, in order to achieve both weight reduction and strength, a light and strong material such as a pipe structure or a carbon material may be selected and created. The thickness and repulsive force of the rod springs 30, 31, 32 and the elastic force of the fixed spring 8 are appropriately selected according to the size and use of the drawing board 80 to be used, and thus do not limit the present invention.

  FIG. 4 shows a configuration for enhancing convenience and versatility by attaching an additional part to the easel 10 when the easel 10 is carried outdoors in a sketch trip or the like.

  An additional part for extending the length of the easel leg will be described. As a first extension means, the extension rod 40 is an additional part for easily tilting the drawing board 80 such as a sketch book placed thereon, and can be attached to any tip portion of the easel legs 1, 2 and 3. For example, the connecting portion 40a of the extension rod 40 is inserted and fixed to the distal end portion of the easel leg 1 with the protective cap 7a removed, and the removed protective cap 7a is attached to the distal end of the extension rod 40 for use. This is used when the drawing board 80 is tilted with the easel 10 installed first.

  Next, as a second extension means for extending the length of the easel leg, the structure of the extension legs 41, 42, 43 for arbitrarily extending the length of the lower part of the easel legs 1, 2, 3 to increase the drawing position And the function will be described. The extension leg 41 attached to the easel leg 1 is formed of a hollow pipe having the same shape as the outer circumference of the easel leg 1 or having a slightly larger inner circumference, and the extension leg 41 into which the easel leg 1 is inserted has several tip portions. A slit in the vertical direction is provided at the top, and the insertion portion 41a is extended in a trumpet shape toward the distal end.

  In order to fix at an arbitrary position, the insertion portion 41a of the extension leg 41 is provided with a plurality of slits, and the tip is expanded in a trumpet shape. A constraining cylinder 41b is inserted into the outside of the extension leg 41 so as to squeeze the trumpet-shaped insertion portion 41a and press and fix it on the surface of the easel leg 1. The constraining cylinder 41b is formed of a sliding spring 41c formed by a close coil spring fitted to the extension leg 41a so as not to easily slip from the fixed position, and a close coil spring that limits the movement range of the constraining cylinder 41b. The stop spring 41d thus fitted is fixed to the extension leg 41a.

  In the case of extending the length of the easel leg 1, when the restraining cylinder 41b and the sliding spring 41c which have fixed the extension leg 41 are moved to the position of the stop spring 41d, the trumpet-shaped insertion portion 41a is opened and the extension leg is extended. 41 can move in the axial direction. When the restraint cylinder 41b is moved to the tip of the insertion portion 41a when the easel leg 1 is extended and reaches a desired length, the trumpet-shaped insertion portion 41a is narrowed, and the insertion portion 41c is pressed against the easel leg 1. It has a fixed structure.

  For example, when only the extension leg 41 of the easel leg 1 is extended, when the easel leg 1 is pulled upward, the drawing board 80 can be inclined and placed in the same manner as in the state where the extension rod 40 is connected.

  The extension rod 40 and the extension leg 41 are extension means for the purpose of changing the length of the easel leg 1 and may have the same structure except that the positions to be connected are different.

  As a method for fixing the extension means provided in the easel leg, a tooth-like groove is formed on the eccentric shaft member formed with the cam of the eccentric rotation structure fixed to the tip of the extension leg 41 inserted into the pipe structure easel leg 1. There is a rotational eccentric fitting structure in which the eccentric eccentric sleeve can be rotatably fitted, and when the extension leg 41 is rotated when the desired length is reached, the eccentric rotary sleeve can be pressed and locked. The easel leg 1 is formed with a male screw at the slit end, a constraining cylinder in which a female thread is formed in a taper shape is rotatably fitted, and the easel leg 1 is rotated by rotating the constraining cylinder. There are a variety of structures such as a method of pressing and fixing the extension leg 41 inserted therein, by narrowing the tip portion where the slit is cut, and restricts the fixing method of the extension means provided in the easel leg of this embodiment. It is not a thing.

  The mounting bracket 45 has an L-shaped structure for holding the placed drawing board 80, and a through-hole 46 into which the tip of the easel leg can be inserted is formed on one side of the L-shaped. When attached, the drawing board 80 is placed on the other side protruding perpendicularly. When the mounting bracket 45 is used, for example, in order to install the drawing board 80 at an inclination, the mounting board 45a is attached to the extension rod 40 attached to the easel leg 1 in an inverted L shape so that the drawing board 80 is viewed from above. The other easel legs 2 and 3 are provided with a function of restraining, and the mounting brackets 45b and 45c attached in an L shape support the drawing board 80 from below (see FIG. 5a).

  The mounting bracket 45 can be attached to the same number of easel legs as necessary. The upper ends of the easel legs 1, 2, and 3 are added with the length of the protective cap 7 to be attached and the length of the mounting bracket 45. The perforation positions of the through holes 4, 5 and 6 are determined by previously calculating the intervals. The mounting bracket 45 has a variety of shapes such as an L shape and a bowl shape. In the present embodiment, the mounting bracket 45 is described in an optimum shape for holding the drawing board 80, and the mounting bracket 45 of the present embodiment. The shape is not limited.

  The fixing tool 25 is an additional part for fixing the drawing board 80 so that it does not scatter due to a gust or a collision. A clip 25c sandwiching the drawing board 80 is attached to one end of a traction spring 25a formed by a tension spring with a ring 25b. The other end is provided with a ring 25d that is detachably attached to the fixed clamp 20 or the opening limiting ring 22 of the center restraining member. When using the easel 10 in a sketch or the like, when two or three fixing tools 25 are attached and the inclined drawing board 80 is held down from above, the drawing board 80 from both sides of the extension rod 40 added to the easel leg 1 is used. Instead of the clip 25c, a bifurcated hook 26 that can suppress the edges of the clip 25c can be attached. Further, when the size of the placed drawing board 80 is large or the placement object has a complicated shape such as a polygon, a plurality of fixtures 25 can be held between the attachment clips 25c according to the shape.

  A hanging metal fitting 50 for installing a water pouch 51 necessary for drawing a watercolor painting has a configuration in which a hanging hook 50c is attached to a torsion coil spring in which both end portions 50a and 50b are formed in a bowl shape. A water pouch 51 made using a milk pack or a plastic bottle is compressed by inserting both end portions 50a, 50b of a torsion coil spring of a hanging metal fitting 50 into suspension holes 51a, 51b drilled at two locations on the edge of the water container 51. It is locked using the restoring force of the torsion coil spring. The water bowl 51 fitted with the hanging metal fitting 50 hooks and holds the hanging hook 50c on the opening limiting ring 22 or the ring 25d of the fixture 25 (see FIG. 5a).

  As an effect of suspending the water pouch 51 containing a plurality of water, it can be used as a weight of the unfolded easel 10, and the effect of preventing the easel 10 from falling over due to the unexpectedly blowing wind can be exhibited. As another method for preventing the easel 10 from toppling, a peg 27 is attached to the fixture 25 attached to the fixing clamp 20 or the opening limiting ring 22 instead of the clip 25c, and the peg 27 is inserted and fixed to the ground. You can also.

  FIG. 5 is a diagram specifically showing an example of use of the easel 10. As shown in FIG. 5A, in the configuration of the easel 10 in which the additional parts described in the explanation of FIG. 4 are attached and deployed, the drawing board 80 is placed with the extension rod 40 and the mounting bracket 45 inclined, and the drawing board is placed. In this state, both ends of 80 are sandwiched between the clips 25c of the two fixtures 25 and stabilized. When drawing sketches and watercolors in the outdoors, the drawing board 80 is secured by the clip 25c of the fixing tool 25 locked to the fixing clamp 20 of the center restraining member or the opening limiting ring 22 in order to prevent the drawing board 80 from being scattered or toppled by the unexpectedly blowing wind. The drawing board 80 can be maintained in a stable state by using the water bowl 51 suspended on the center restraining member as a weight.

  FIG. 5B and FIG. 5C are usage examples using a unique structure of the easel 10 in which a plurality of easel legs whose central portions are constrained are developed into a single leaf hyperboloid shape. FIG. 5 (b) shows five easel legs 1, 2, 3, 4 and 5 which are deployed horizontally, and bar springs 30, 31, 32, 33 and 34 or protective caps 7a, 7b, 7c and 7d horizontally. , 7e can be used as a pedestal on which a top plate of a polygonal shape or a circular shape is placed to place arts and crafts such as vases and sculptures.

  In FIG. 5C, the easel 10 that has also been deployed is hung with a panel such as a poster or a picture, or a jewelry such as a necklace or brooch on the bar springs 30, 31, 32, 33, and 34 that are passed horizontally. It can be used as an advertising stand for display. Providing the easel 10 with versatility and convenience that can be used for various purposes by using a unique structure that expands in the shape of a single leaf hyperboloid of the easel 10 by increasing the length and number of legs of the easel. Can do.

  As described above, the easel of this embodiment can reduce the weight of the easel that is particularly problematic so that sketching using watercolor etc. can be easily performed outdoors, it can be easily assembled anywhere, and the central part is constrained. The easel legs can be expanded to stably place drawing boards, canvases and other drawing boards. In addition, the angle at which the drawing board is placed can be easily adjusted, and since the shape when stored is a stick, a small and light easel that is convenient to carry without taking up space can be provided.

  In addition, using a unique structure when deploying multiple easel legs with the central part restrained, panels and jewelry such as posters and paintings are suspended from bar springs connecting adjacent easel legs. It is possible to provide an easel with versatility that can be used as an advertising stand or a pedestal on which a top plate can be placed and a vase for placing artificial flowers or ikebana or a sculpture.

1 Easel leg 2 Easel leg 3 Easel leg 4 Easel leg 5 Easel leg 7 Protective cap 8 Fixing spring 9 Stone thrust 10 Easel 20 Fixing clamp (corresponding to center restraining member)
21 Opening restriction ring (corresponding to center restraining member)
22 Opening restriction ring (corresponding to center restraint member)
23 Adjustment metal fitting 23a Extension knob 23b Connecting band 25 Fixing tool 26 Bifurcated hook 27 Peg 30 Bar spring 31 Bar spring 32 Bar spring 33 Bar spring 34 Bar spring 40 Extension rod (corresponding to extension means)
41 Extension leg (corresponding to extension means)
45 Mounting bracket 46 Through hole 50 Hanging bracket 51 Water filling 80 Drawing board F Restraint force G Friction force

Claims (5)

An easel for placing a drawing board or top board,
A plurality of rod-shaped easel legs;
A plurality of through holes that are perpendicular to the center axis of the easel leg and penetrated to predetermined positions;
A plurality of bar springs formed of wire rods inserted into the through holes and connecting the easel legs;
A center restraining member for restraining a center portion of the plurality of easel legs,
When the plurality of easel legs are deployed, the plurality of easel legs are connected and fixed to each other by bending the plurality of bar springs in a convex shape.   The center restraining member has a fixed clamp that binds and restrains the plurality of easel legs, and an opening limiting ring that restricts the deployment angle to an arbitrary angle when the plurality of easel legs are deployed. Easel according to claim 1   The plurality of easel legs are closely attached so as to cover the plurality of through-holes penetrating, and fixed springs that sandwich and restrain the plurality of bar springs inserted into the through-holes are fitted. The easel according to claim 1 or 2.   The easel according to any one of claims 1 to 3, wherein the plurality of easel legs further includes an extension means connected to an end of the easel leg to extend the length thereof.   5. A picture, a panel, or a jewelry is suspended from the plurality of bar springs on which the arts and crafts are placed on the top plate or the plurality of easel legs are connected and fixed. The easel according to item 1.

Images