JP3111408U - Main frame for easel and easel including the same - Google Patents

Abstract

The present invention provides an easel capable of minimizing volume in a folding manner, making transportation and storage convenient, and more stably supporting a drawing board or canvas.
In order to pivotally support two front support legs, one character portion having coupling holes on the left and right sides, and radially extending from the left and right sides of the one character portion, the two rear support legs are pivotally supported. Therefore, in addition to the main frame including the extension portion having the coupling hole, two front support legs and two rear support legs are included.
[Selection] Figure 2

Description

  The present invention relates to a main frame for an easel and an easel including the same. More particularly, the present invention relates to a main frame for easel that can more stably support a drawing board or canvas and an easel including the same.

  An easel is a frame with a support for stably supporting a drawing board or canvas when drawing a picture. Such an easel is classified into a trapezoidal easel and a five-virtual easel according to the form.

  As an easel in the form of a trapezoidal frame, there is one disclosed in Patent Document 1. Such an easel in the form of a trapezoidal frame folds the auxiliary leg provided on the back surface when moving or cleaning up after drawing. At this time, the trapezoidal frame is in a fixed state that cannot be folded, and has a problem that it is large in size and not easily moved, and occupies a lot of space for organizing.

  Complementing the drawbacks of the easel in the form of a trapezoidal frame, it is possible to minimize the volume during movement and tidying with three support legs that can be expanded downward and centered on the upper end and can be folded and expanded. A five-virtual easel has been developed and widely used. Such a five-virtual type easel is disclosed in Patent Document 2.

  The easel disclosed in Patent Document 2 is shown in FIG. As disclosed in the claims of Patent Document 2, this easel is a five-virtual type easel that is equipped with a drawing board 100 and can draw a picture. The three support legs 30 that are freely adjustable in length and are joined so as to be folded at a predetermined angle are formed at the upper end inside the upper unit leg tube with the cap 35 for preventing separation at the lower end. The lower unit leg tube is constructed by inserting a fixture having one side larger than the upper end radius into the semicircular recess and inserting a lower unit leg tube that is pivotally supported in an eccentric state and elastically supported by a spring 41. The outer surface of the fixture that expands and contracts while rotating in the direction opposite to the rotation direction presses and releases the inner surface of the upper unit leg tube so that the length of the support leg can be adjusted. In FIG. 1, reference numeral 20 is a clamp, 50 is a support base coupler, 60 is a drawing board support base, and 61 is a hinge.

Such a five-virtual easel had the following fundamental problems. Since the drawing board is fixed between the first leg of the support leg and the clamp of the main frame, the center of the weight as a whole is located on the upper side, so the work must be performed in an unstable state, especially the wind If you blow or touch the drawing board by someone else's carelessness, there is an unstable problem such as falling easily. In order to prevent such a fall, there is a trouble that the end of the leg must be fixed to the ground or the like.
Korean Utility Model Registration Gazette No. 131613 Specification Korean Utility Model Registration Publication No. 1999-35773 Specification

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an easel that is convenient to move and store by minimizing the volume in a folding manner.

  Another object of the present invention is to provide an easel that can support a drawing board or canvas more stably than a conventional virtuosity type easel.

  In order to achieve the above object, the present invention has a folding support leg and a main frame for easel that supports the back of the drawing board. A main frame for easel characterized by comprising a character portion and an extension portion extending radially from the left and right sides of the one character portion to support two rear support legs. To do.

  According to this configuration, there is an advantage that the four support legs can be pivotally supported so as to support the drawing board and the like more stably with a simple configuration.

  In order to achieve the above object, according to the present invention, in the easel, the main frame supporting the back of the drawing board and the lower end of the main frame can be adjusted in length and can be expanded and folded at a certain angle. And a support leg that supports the main frame and a drawing board support base that is coupled to a support base joint provided on the support leg, and is supported by the lower end of the main frame. Provided is an easel having four support legs.

  According to this configuration, since it can be folded, the volume can be minimized, the easel can be easily moved and stored, and the rear support legs are two, so that the drawing board, etc. can be compared with the conventional easel. There is an advantage that can be supported more stably.

  A hemispherical insertion recess is formed in each of the front support leg and the rear support leg facing each other, and the insertion parts at both ends of the dumbbell support rod are detachably inserted into the insertion recess. be able to.

  According to this configuration, even if wind blows from the front of the easel or an impact is applied, the front support legs can be folded back and the easel can be prevented from falling, and the drawing board can be supported more stably. There is.

  The support leg is formed of a tube member having a square cross section, and a plurality of valleys are formed on the outer peripheral surface thereof, and the unit leg tubes whose lengths are adjusted by stretching are preferably fixed to each other by a fixing clamp.

  According to this configuration, there is an advantage that the fixing force can be further strengthened and the structural strength of the supporting leg can be increased when the supporting leg is fixed with the fixing clamp after the supporting leg is expanded and extended.

  According to the present invention as described above, the volume is minimized by the folding method, and the movement and storage become convenient.

  Further, according to the present invention, the canvas or the drawing board can be supported more stably.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 2 is a perspective view of the easel according to the first embodiment of the present invention, and FIG. 3 is a perspective view showing a state where the easel of FIG. 2 is completely folded.

  As shown in the figure, an easel 200 according to the present invention can be adjusted in length and expanded and folded at a fixed angle at a main frame 210 that supports the back of the drawing board and at the lower end of the main frame 210. The support plates 221, 222, 223, and 224 that are pivotally supported and support the main frame 210, and the drawing board that is coupled to the support base coupling portion 232 provided on the front support legs 221 and 222 among the support legs. Unlike the conventional foldable easel, the support base 230 includes four support legs coupled to the lower end of the main frame 210 instead of three. Therefore, the instability, which is the fundamental problem of the Gotoku-type easel, has been revolutionarily solved with a simple configuration.

  FIG. 4 is a cross-sectional view of the main frame to which the support legs are coupled in the easel according to the first embodiment of the present invention, and FIG. 5 illustrates how the support legs are coupled to the main frame according to the first embodiment of the present invention. It is a perspective view shown. As shown in the figure, the main frame 210 has a substantially U-shaped cross section when viewed from the bottom. This has a substantially “T” cross-section, and is completely different from a conventional main frame in which two support legs are pivotally supported in the front and one support leg is pivotally supported in the rear.

  More specifically, the main frame 210 has a single-shaped portion 212 having a coupling hole 227 on the left and right sides of the front surface, and a left-right extension portion extending radially behind the single-shaped portion 212 and having a coupling hole 227, respectively. 214, 216. Front support legs 221 and 222 are pivotally supported by bolts 228 and nuts 229 in the coupling hole 227 of the one-shaped part 212, and rear support legs 223 and 224 are coupled to the coupling holes 227 of the left and right extension parts 214 and 216. It is supported by bolts and nuts 229. Due to the structure of the main frame 210 of the present invention, four support legs can be coupled to support the drawing board more stably.

  The support legs 221, 222, 223, and 224 have a foldable structure that can be expanded and extended, and a connecting portion at the time of extension is fixed by fixing clamps 221 a, 221 b, 222 a, 222 b, 223 a, 223 b, 224 a, 224 b. The Since the fixed clamp is the same as a conventional known technique, a detailed description thereof will be omitted. In order to increase the fixing force by the fixing clamp and increase the structural strength of the support legs, the support legs 221, 222, 223, and 224 are made of pipe members having a square cross section, and a large number of the outer peripheral surfaces are arranged in the longitudinal direction. The valley portion 226 is formed.

  A support bar 240 that is coupled to a support bar passage hole 219 formed inside a character portion of the main frame 210 so as to move up and down supports the back surface of the drawing board. An upper part 242 for fixing the drawing board is provided. The support bar 240 is fixed by a support bar fixture 218 attached to the main frame 210. The drawing board support 230 has a number of coupling holes coupled to the fittings 232 provided in the first unit leg pipes of the front support legs 221 and 222, so that the support legs can be expanded according to the size of the drawing board. It can be adjusted to be coupled to the coupler 232 in view of the degree of opening.

  6 is a perspective view of an easel according to a modified embodiment of the present invention, and FIG. 7A is a first unit of the front support legs 221 and 222 and the rear support legs 223 and 224 in the easel according to the modified embodiment of the present invention. FIG. 7B is a cross-sectional view illustrating a state in which the leg clamps are connected to the fixed clamps 221b, 222b, 223b, and 224b. FIG. 7B is an easel according to a modified embodiment of the present invention. It is sectional drawing which shows the state isolate | separated from. In the following description, the same components as those in the first embodiment will be described with the same reference numerals.

  According to the modified embodiment of the present invention, by connecting the support rod 250 between the front support legs 221 and 222 and the rear support legs 223 and 224, unexpected folding of the front support legs and the rear support legs due to wind or the like can be prevented. It can be prevented.

  In detail, substantially hemispherical coupling recesses 221c, 222c, 223c, and 224c are formed in the fixing clamps 221b, 222b, 223b, and 224b of the first unit leg tubes of the front and rear support legs, and dumbbell-shaped in these coupling recesses The coupling part 252 of the support bar 250 is inserted. According to such a configuration, there is an advantage that the support bar 250 can rotate according to the degree of expansion of the support leg.

  The main frame for an easel according to the present invention configured as described above and the easel including the same substantially break down the fundamental instability of the conventional virtuosal easel, and is convenient for moving and storing the gorgeous easel. It is a very useful device that can support the drawing board stably not only indoors but also outdoors.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope described in the claims for utility model registration, and these are naturally within the technical scope of the present invention. It is understood.

  The present invention can be applied to an easel that stably supports a drawing board or canvas.

It is a perspective view which shows the easel by one form of prior art. 1 is a perspective view illustrating an easel according to a first embodiment of the present invention. It is a perspective view which shows the state which folded the easel of FIG. 2 completely. FIG. 3 is a cross-sectional view illustrating a main frame to which a support leg is coupled in the easel according to the first embodiment of the present invention. In the easel according to the first embodiment of the present invention, FIG. It is a perspective view showing an easel according to a modified embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating a state in which a support rod of an easel according to a modified embodiment of the present invention is coupled to a clamp. It is sectional drawing which shows the state from which the support bar of the easel by the deformation | transformation embodiment of this invention is isolate | separated from a clamp.

Explanation of symbols

200 Easel 210 Main frame 212 One-shaped part 214, 216 Extension part 218 Support bar fixing tool 219 Support bar passage hole 221, 222 Front support leg 221a, 221b, 222a, 222b, 223a, 223b, 224a, 224b Fixing clamp 221c, 222c 223c, 224c Insertion recess 223, 224 Back support leg 226 Valley part 227 Connection hole 228 Fixing bolt 229 Fixing nut 230 Drawing board support 232 Binding tool 240 Support bar 242 Drawing board upper fixing tool 250 Support rod 252 Insertion part

Claims (5)

In the main frame for easel that has folding support legs and supports the back of the drawing board,
In order to pivotally support the two front support legs, a single-character portion having a coupling hole on the left and right sides;
A main frame for easel that extends radially from the left and right sides of the one-shaped portion and includes an extension portion having a coupling hole for supporting two rear support legs. In the easel
A main frame that supports the back of the drawing board;
A support leg that is pivotally supported at the lower end of the main frame so as to be adjustable in length and can be expanded and folded at a fixed angle, and supports the main frame;
A drawing board support base coupled to a support base joint provided on the support leg,
An easel characterized in that there are four support legs pivotally supported on the lower end of the main frame. The mainframe is
In order to pivotally support the two front support legs, a single-character portion having a coupling hole on the left and right sides;
The easel according to claim 2, further comprising an extension portion extending radially from the left and right sides of the one-shaped portion and having a coupling hole for supporting two rear support legs.   A hemispherical insertion recess is formed in each of the front support leg and the rear support leg facing each other, and insertion parts at both ends of the dumbbell support rod are detachably inserted into the insertion recess. The easel according to claim 3.   The support leg is formed of a tube member having a square cross section, and a plurality of valleys are formed on an outer peripheral surface thereof, and unit leg tubes whose lengths are adjusted by extending and contracting are fixed to each other by a fixing clamp. The easel as described in any one of claim | item 2 -4.

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