JPH03107Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an easel equipped with a canvas holding device.

[Conventional technology]

Easels that have been commonly used in the past have the lower edge of the canvas supported by lateral supports, and the upper edge of the canvas supported by screws 1 as shown in Figure 8, for example. Claw member 2
It is fixed by That is, with the screw 1 loosened, the claw member 2 is slid forward (to the position shown by the imaginary line), the upper edge of the canvas A is set in a predetermined position, and then the claw member 2 is pushed back. Tighten screw 1 and remove claw member 2.
is fixed to the back plate 3. In this way, the canvas A is sandwiched between the claw member 2 and the back plate 3.

[Problems to be solved by the invention] In the conventional easel as described above, each time the canvas A is attached or removed, the screw 1 is rotated in the tightening or loosening direction, and the claw member 2 is rotated in a predetermined position. A cumbersome operation is required to move the device to the desired position. Also, if you fall, you may lose the screw 1. For this reason, there was a desire for an easy-to-operate easel that would allow the user to clamp the canvas with a single touch.

[Means for solving problems]

The easel of the present invention is provided with a slider that is slidable in the front and back direction and has a hook that can be engaged with the upper edge of the canvas at the upper end of the vertical support rod that is attached to the legs. The present invention is characterized in that a return spring for biasing the slider rearward is provided between the slider and the support rod.

[Effect]

In the easel of the present invention having the above structure, in order to clamp a canvas, the user moves the slider forward by hand, sets the canvas in a predetermined position, and then releases the slider. By doing so, the slider tends to return to the rear position due to the repulsive force of the return spring, so that the upper edge of the canvas can be caught by the hook provided on the slider.

To remove the canvas, just pull the slider forward by hand and remove the upper edge of the canvas from the hook of the slider, as described above. In this way, the canvas can be easily attached or detached by one-touch operation of the slider.

〔Example〕

The easel 10 shown in FIG.
And the three legs 1 attached to this base 11
3, 14, and 15. Base 11 above
is a molded product made of synthetic resin or aluminum alloy, and each of the three legs 13 to 15 is connected to the shaft 1.
7 (only a portion is shown).

In the case of this embodiment, the legs 13 to 15 have the same structure and are each made of a telescopic tube. The telescopic tubes are made of multiple tubes (the figure shows 3
The pipes 20, 21, and 22 of the present invention are connected so as to be expandable and contractible, and each of the pipes 20 to 22 can be fixed at a desired length using a well-known clamp mechanism 23.
The pipes 20 to 22 are made of a lightweight metal such as an aluminum alloy.

Further, a hole 25 is formed in the base 11 and passes through the base 11 in the vertical direction. A vertical support rod 27 is slidably inserted into this hole 25. This support rod 27 uses a square pipe made of aluminum alloy or the like.

Furthermore, a fixing screw 3 is provided on the base 11 as an example of means for fixing the support rod 27 to the base 11.
0 is set. A knob 31 is provided at the base of the fixing screw 30. When the knob 31 is turned in the screw tightening direction (clockwise), the tip of the fixing screw 30 pushes against the back side of the support rod 27. , the support rod 27 can be fixed to the base 11. Conversely, when the knob 31 is rotated counterclockwise, the tightening of the support rod 27 is loosened.
The support rod 27 becomes slidable in the vertical direction relative to the base 11.

A canvas holding device 33 is provided at the upper end of the support rod 27. This canvas holding device 3
3 is the slider 3 as illustrated in FIG.
4. This slider 34 is made of synthetic resin or metal, and has a central flat plate portion 3 along the front-rear direction.
5, a hook portion 36 provided downward at the front of the flat plate portion 35, and a falling portion 37 provided at the rear of the flat plate portion 35. The flat plate portion 35 is formed with a long hole 40 extending along its longitudinal direction and penetrating in the thickness direction. An upper part 41a of an end member 41 inserted into the upper end opening of the support rod 27 is fitted into the elongated hole 40 so as to be slidable in the front-rear direction.

A retaining member 43 is fixed to the upper surface side of the end member 41 with a screw 42 . The width of this retaining member 43 is made wider than the groove width of the elongated hole 40 to prevent the slider 34 from coming off upward.

Further, a through hole 45 is formed in the falling portion 37, and a guide pin 46 is inserted into this through hole 45. The tip 46a of this guide pin 46
is fixed to the base portion 41b of the end member 41 through the tube wall of the support rod 27. Therefore slider 3
4 can stably slide in the front-rear direction by being guided by the guide pin 46 and the upper part 41a of the end member.

Furthermore, between the falling portion 37 and the support rod 27,
A return spring 50 is interposed concentrically with the guide pin 46. For example, a coil spring is used as the return spring 50, and is adapted to bias the slider 34 rearward (to the left in FIG. 2). In addition, two legs 13 and 14 located on the front side
Lower support members 52 and 53 are attached to support the lower edge of the canvas A, respectively. As shown in FIGS. 4 and 5 as a representative of one of the lower support members 52, the lower support member 52 includes a ring-shaped base 55 made of synthetic resin or the like;
A hook attachment portion 56 integrally protrudes from a part of 5.
It has This hook attachment part 56 has
A hole 57 passing through in the lateral direction is formed. An L-shaped hook 61 having a threaded portion 60 at its tip is screwed into this hole 57 and fixed thereto. In addition,
In the illustrated example, the hook 61 is a hook attachment portion 56.
However, since the hole 57 passes through the hook attachment part 56 in the left-right direction, it is also possible to fix the hook 61 to the left side of the hook attachment part 56 in the figure (i.e., a symmetrical position). . The hook 61 of this embodiment is a metal hook body 61.
The surface of a is covered with a covering material 61b made of soft synthetic resin.

A slit 63 is formed in the base 55 by dividing a part of the circumferential direction, and after fitting the base 55 to the leg 13, the lower support member is tightened with a screw 65 and a nut 66. 52 is fixed to the leg 13. Note that the other lower support member 53 is also fixed to the leg 14 in the same manner as described above.

As shown in FIG.
It is supported by each hook 61 of 53. Canvas A
After adjusting the height of the support rod 27 according to the height of the canvas A, the upper edge of the canvas A is fixed by the canvas holding device 33. That is, when sandwiching the canvas A, move the slider 34 in the direction of arrow F in FIG.
Push forward with your finger. After positioning the upper edge of the canvas A between the hook portion 36 and the support rod 27, the user releases the slider 34. By doing so, the slider 34 returns to the rear by the repulsive force of the return spring 50, so that the upper edge of the canvas A can be pinched by the hook portion 36.

According to the canvas holding device 33, when attaching or removing the canvas A, the slider 34
Because all you have to do is press and release the button, the operation is much simpler than the conventional product that uses adjusting screws and pawls (see Figure 8), and Since no adjustment screws are used,
No need to worry about losing screws.

Moreover, since the structure is such that the canvas A is elastically pressed down by the repulsive force of the return spring 50, even if the thickness of the canvas A changes, as long as the spring 50 is within the range in which it can be bent, the thickness of the canvas A will change. It can absorb changes and requires no troublesome adjustments.

Note that another embodiment of the canvas holding device 33 is shown in FIGS. 6 and 7. However, since the basic structure and operation and effect are the same as those of the above embodiment, corresponding parts are given the same reference numerals as those of the above embodiment, and the explanation thereof will be omitted, and the different parts will be explained below.

In this embodiment, a nut 7 is attached to the guide pin 46.
0 are screwed together, and the outside of the return spring 50 is covered with a bellows-shaped rubber cover 71. Further, a projection 72 is provided at the upper end of the slider 34 so that a finger can be easily hooked thereon. Further, the end member 41 and the retaining member 43 are integrally molded with each other. Therefore, a wide portion 73 (see FIG. 7) is formed in a part of the elongated hole 40 so that the end member 41 can be inserted therethrough. A through hole 74 is formed in the hook portion 36 so that the guide pin 46 can be inserted therethrough during assembly.

According to the above configuration, since the spring 50 and the guide pin 46 are covered by providing the cover 71, the appearance is good, and the sliding portion of the guide pin 46 can be prevented from being clogged with dirt. Note that the cover 71 may be attached to the embodiment shown in FIG.

[Effect of idea]

According to the easel of the present invention, it is possible to pinch the canvas with one touch by simply operating the slider, and the operation is extremely simple.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a perspective view of the upper part of the easel, FIG. 2 is a partially exploded perspective view of the canvas holding device,
Figure 3 is a perspective view of the easel in use;
This figure is a perspective view showing the lower support member, and FIG. 5 is a perspective view showing a part of the lower support member exploded. 6th
The figure is a sectional view of a canvas holding device portion showing another embodiment of the present invention, and FIG. 7 is a perspective view of the slider and end member shown in FIG. 6. FIG. 8 is a sectional view showing a part of a conventional easel. 10...easel, 13-15...legs, 27...
...Support rod, 34...Slider, 36...Hook part, 50...Returning spring, A...Canvas.

Claims (1)

[Scope of utility model registration request] At the upper end of the vertical support rod attached to the leg,
A slider equipped with a hook that can be engaged with the upper edge of the canvas is provided so as to be slidable in the front-rear direction, and a return spring that biases the slider backward is provided between the slider and the support rod. An easel characterized by having a.