JP3084319U - Back plate holder for picture frame - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To make it possible to hold a frame back plate presser for holding a frame back plate even after assembling the forehead and to enable inexpensive manufacturing. An internal space (3b) wider than a width of an opening (3a) is provided.
A back plate holder 1 made of a synthetic resin, which is attached to the mounting groove 3 on the back surface of the frame 2 having a groove, and which presses a back plate 6 fitted into the frame 2 from the back side with an extended pressing piece 5 forward. A rotatable shaft portion 9 that can be inserted into the opening 3a of the mounting groove 3 from the back and is rotatably provided at the base end portion 4 to be mounted on the mounting groove 3, and the shaft portion 9 has the tip thereof. An engaging portion 10 extending in the same direction as the presser piece 5 and capable of retaining when rotated is formed, and a hole 12 for removing an undercut is formed at a position corresponding to the engaging portion 10 in the base end portion 4. Frame back plate foot 1

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a frame back plate holder for holding a back plate fitted on the back surface of a frame to hold an exhibit such as a calligraphy or a photograph.

[0002]

[Prior art]

 Such a back plate retainer is disclosed, for example, in Japanese Patent Application Laid-Open No. 9-313317. This presser is used by attaching it to the groove formed on the back surface of the aluminum frame. On the lower surface of the plate-shaped attachment part for the groove, a shaft with a thickness that fits into the opening of the groove is vertically installed. At the lower end, a locking portion projecting from front to back and left and right is formed in a flange shape wider than the width of the opening in order to prevent it from falling out of the opening.

[0003] The presser must be held in advance before the frame is assembled. That is, hold down the presser by a predetermined number at a predetermined position on the forehead in the disassembled state, assemble, turn the presser along the length direction of the frame, insert the back plate, etc., and then Rotate the presser and press the back plate with the presser piece that protrudes forward.

However, in this presser, it is necessary to hold the forehead in advance before assembling the forehead. For example, when the forehead is forgotten to be held, it is necessary to disassemble the forehead, which is difficult to handle.

[0005] Furthermore, since the locking portion has a shape extending in the horizontal direction below the plate-shaped mounting portion, there is an undercut which is caught in the opening and closing direction of the mold. For this reason, a mold having a slide structure is required, and there is a problem that the mold is expensive.

[0006]

[Problems to be solved by the invention]

 Therefore, the main object of the present invention is to provide a frame back plate retainer which can be held even after the forehead is assembled and can be manufactured at low cost.

[0007]

[Means for Solving the Problems]

 For this purpose, the back plate fitted into the mounting groove on the back side of the picture frame, which has an internal space wider than the width of the opening, and fitted into the picture frame from the back side, is pressed forward by the extended holding piece. A frame back plate holder made of a synthetic resin to be mounted, wherein a rotatable shaft portion that can be inserted into the opening of the mounting groove from the back side and that is rotatable is provided vertically at a base end portion to be mounted in the mounting groove. At the end, a locking portion that extends in the same direction as the holding piece and that can be prevented from falling out when rotated is formed, and a hole for removing the undercut is formed at the locking portion corresponding to the locking portion at the base end. It is a formed frame back plate presser.

Since the shaft portion at the base end can be inserted into the mounting groove from the back side and can be rotated, the locking portion at the tip of the shaft portion is arranged along the length direction of the mounting groove, so that the mounting can be performed. It can be inserted in the groove. If it is inserted and then rotated so that the holding piece comes out onto the back plate, the locking part is locked in the internal space of the mounting groove, and the holding piece holds down the back board. In addition, since a hole is formed at the base end corresponding to the locking part, there is no part to be caught in the opening and closing direction of the mold during molding, and there is no undercut. And a pair of lower molds.

[0009] The engaging portion may be formed with a projection having a shape slightly wider than the width of the opening so as to be insertable. When the shaft is inserted into the mounting groove, it clicks into place. The insertion state can be maintained, and unexpected dropout can be prevented.

[0010] Furthermore, when the holding piece is extended obliquely downward so as to be able to be elastically pressed, and when the protrusion is inserted into the mounting groove along the frame without deforming the holding piece. Alternatively, a curved surface or an inclined surface that facilitates rotation may be formed above the protrusion at the locking portion, at a position where it is locked below the opening of the mounting groove.

[0011] Since the holding piece extends obliquely downward, the back plate can be elastically pressed against the back plate, and can be pressed more strongly. Further, when the projection is locked below the opening of the mounting groove, the holding piece is not deformed, so that no force is applied in the removal direction and the holding state can be maintained. Further, since a curved surface or an inclined surface is formed above the protruding portion of the locking portion, rotation for hooking the locking portion in the internal space can be easily performed.

[0012] Further, a split groove allowing elastic displacement may be formed in the locking portion and the shaft portion. Since the locking portion having the protruding portion is elastically deformed so as to reduce the width, it is easy to attach and detach, and a secure holding state can be obtained.

[0013]

[Embodiment of the invention]

 One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a frame back plate holder 1 (hereinafter, referred to as a back plate holder) as viewed from the lower surface side. The back plate retainer 1 is used by being attached to a mounting groove 3 formed on the back surface of the aluminum frame 2 as shown in FIG. That is, the back plate presser 1 having a shape in which the presser piece 5 extends obliquely downward from the plate-like base end portion 4 has the base end portion 4 rotatably mounted in the mounting groove 3, 5 is pressed onto the back plate 6 to hold down the back plate 6 and the like.

The back plate retainer 1 is made of synthetic resin and is formed by one injection molding.

As shown in FIGS. 3, 4, and 5, the aluminum frame 2 has an edge 7 on the outer peripheral edge of the back surface and a mounting surface 8 having an appropriate width inside the edge 7. The mounting surface 8 has an opening 3a narrower than the mounting surface 8 and the mounting groove 3 having an inner space 3b wider than the opening 3a below the opening 3a. ing .

The base end 4 of the back plate retainer 1 to be mounted in the mounting groove 3 is set to be slightly smaller than the width of the mounting surface 8 so as to be rotatable 180 degrees on the mounting surface 8. I have.

On the lower surface thereof, a shaft portion 9 having a circular cross section and having a thickness rotatable and insertable into the opening 3a is formed.

Below the position of the shaft portion 9 separated by the thickness forming the opening 3a of the aluminum frame 2, it projects in the same direction as the pressing piece 5 extending forward, and as shown in FIG. A locking portion 10 is formed to lock the inner space 3b below the opening 3a when the aluminum foil 5 is directed inward of the aluminum frame 2.

A split groove 11 is formed in the locking portion 10 and the shaft portion 9 so as to be elastically deformable in a direction to reduce the width.

Further, on both side surfaces of the locking portion 10, projections 10a are formed which are slightly wider than the width of the opening 3a so that they can be inserted. The forming position is such that the retaining piece 5 is locked under the opening of the mounting groove 3 when inserted into the mounting groove 3 along the aluminum frame 2 without deformation (see FIG. 3).

Since the split groove 11 is formed and elastically deformed as described above, even if the projection 10 a is formed, it can be attached and detached from the direction perpendicular to the mounting surface 8. However, a firm attachment state can be obtained. Further, since the projection 10a is formed at a position where the pressing piece 5 is not deformed when inserted into the mounting groove 3, the back plate presser 1 in a state where the back plate 6 is not pressed is subjected to a force in the removal direction. It does not start. For this reason, it is possible to prevent accidental detachment.

Further, in order to make it possible to easily rotate the back plate presser 1 in the oblique state, which is locked without deforming the presser piece 5 as described above, the locking portion 10 is half as viewed from the front. The locking portion 10 has a curved surface 10b above the protrusion 10a. It may be formed with an inclined surface.

Further, a hole 12 for removing an undercut is formed in a portion of the base end 4 corresponding to the locking portion 10 so as to reduce the cost required for a mold for molding.

At the distal end of the base end 4, the presser piece 5 extends through a bent portion 13 that slightly reduces the wall thickness.

The back plate presser 1 configured as described above first holds the aluminum frame 2 after assembling it. As shown in FIG. 3, FIG. 4, and FIG. 5, the length direction of the back plate presser 1 is aligned with the length direction of the aluminum frame 2 and inserted into the mounting groove 3 from above. 9 is fitted into the mounting groove 3. At this time, since the projection 10a is formed in the locking portion 10, it is clicked and cannot be removed without applying force. The required number of back plate holders 1 are attached to the required portions of the aluminum frame 2.

Then, the transparent front plate 14, the display object 15, and the back plate 6 are sequentially stacked and held from the back surface of the aluminum frame 2, and then the back plate presser 1 is rotated by 90 degrees, and the presser piece 5 is placed on the back plate. Put on top of 6. Then, as shown in FIG. 7, the locking portion 10 is locked in the mounting groove 3, and a strong retaining is performed, and the pressing piece 5 elastically presses the back plate 6.

When the exhibit 15 or the like is to be removed, the back plate presser 1 is rotated in the direction along the length direction of the aluminum frame 2 to remove the presser piece 5 from above the back plate 6, and the back plate 6 and the like are removed. Remove.

As described above, it can be attached to the aluminum frame 2 by inserting it from the back side, and it is not necessary to disassemble the aluminum frame 2 each time, which is convenient.

Further, since the hole 12 for removing the undercut is formed in the base end 4, there is no need to provide a slide mechanism in the mold, and the cost can be reduced.

The aluminum frame 2 in the above-described embodiment corresponds to the frame of the present invention, but the present invention is not limited to the configuration of the above-described embodiment.

[0031]

[Effect of the invention]

 As described above, according to the present invention, the shaft formed in the base end portion and inserted into the mounting groove extends in the same direction as the presser piece, and is prevented from coming off when the presser piece rotates so as to press the back plate. Since the locking portion is formed to lock as much as possible, it can be held even after the forehead is assembled. For this reason, it is sufficient to assemble the forehead first, and the frame back plate retainer does not slide without permission, so that the operation is easier than when the frame back plate retainer is held in advance. In addition, if there is a mistake in the holding position or the number of pieces, it can be dealt with immediately, and can be easily attached to an existing frame.

In addition, since a locking portion that projects laterally below the base end, that is, a hole for removing a so-called undercut, is formed in the base end, the cost of the mold is reduced. It can be suppressed and inexpensive manufacturing is possible.

Further, even if the frame back plate presser is detachable from the back side with respect to the mounting groove, if the protrusion is formed in the locking portion, the mounting state can be maintained even when the back plate is not pressed. Good handleability.

In addition, when the position of the projection is set to the above-described position, even if it has a pressing piece extending obliquely downward, a force in a direction in which the pressing piece comes off when the back plate is not pressed. The installation state can be maintained without adding. In addition, when the upper side of the projection of the locking portion is formed as a curved surface or an inclined surface, the rotation during pressing is facilitated, and workability is improved.

Further, by forming a split groove in the locking portion and the shaft portion, it is possible to securely mount the frame on the mounting groove while maintaining easy attachment and detachment from the back side.

[Brief description of the drawings]

FIG. 1 is a perspective view of a frame back plate retainer viewed from the lower surface side.

FIG. 2 is a rear view of an aluminum frame using a frame back plate retainer.

FIG. 3 is a side view of a locked state of a frame back plate holder.

FIG. 4 is a rear view of the frame back plate retainer in a locked state.

FIG. 5 is a plan view showing a locked state of a frame back plate holder.

FIG. 6 is a side view showing an attached state of a frame back plate retainer.

FIG. 7 is a side view of the use state of the frame back plate holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Frame back plate holder 2 ... Aluminum frame 3 ... Mounting groove 3a ... Opening 3b ... Internal space 4 ... Base end 5 ... Pressing piece 6 ... Back plate 9 ... Shaft 10 ... Locking part 10a ... Protrusion 10b ... Curved surface 11 ... Split groove 12 ... Hole

Claims (4)

[Utility model registration claims] 1. A back plate fitted into a mounting groove on the back of a frame having an inner space wider than the width of an opening, and fitted into the frame from the back side, and pressed forward by an extended pressing piece. A frame back plate holder made of a synthetic resin, wherein a rotatable shaft portion that can be inserted into the opening of the mounting groove from the back side is vertically provided at a base end portion to be mounted on the mounting groove, and a tip of the shaft portion is provided. To
A backing plate for a picture frame, which has a locking portion extending in the same direction as the holding piece and capable of retaining when rotated, and a hole corresponding to the locking portion at the base end portion for removing an undercut. Presser. 2. A frame back plate retainer according to claim 1, wherein said engaging portion has a projection which is slightly wider than said opening portion so as to be insertable. 3. The pressing piece is extended obliquely downward so as to be elastically pressable, and the protrusion is inserted into a mounting groove along a frame without deforming the pressing piece. 3. The frame according to claim 2, wherein the frame is formed at a position where it is locked below the opening of the mounting groove, and a curved surface or an inclined surface for facilitating rotation is formed above the protrusion in the locking portion. For back plate holder. 4. The frame back plate retainer according to claim 1, wherein a split groove for allowing elastic displacement is formed in the locking portion and the shaft portion.