JP2001008805A - Frame backing hold-down device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an original frame backing hold-down device facilitating operations in replacing backing that is contained within a frame, together with a picture or completed jigsaw puzzle. SOLUTION: This backing hold-down device is applied to a hollow frame G provided with an upright rib R on the outer edge of its back face and a groove M in the center area of the back face, both of which extend longitudinally. A head 3 having a constricted part 2 which can engage into the groove M is formed near the rear end of an arm piece 4, and projections 5, 5 which can press the upright rib R so that it warps outwardly when the arm piece 4 is rotated about the constricted part 2 engaged in the groove M are formed on both corners of the rear end of the arm piece 4. The rotational property of the arm piece 4 can be efficiently assisted by the elasticity (deformability) and restoring force (resiliency) of the material of the hollow frame G itself.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a picture frame for decorating a picture or a completed jigsaw puzzle so that the picture can be easily viewed, and in particular, to a hollow picture frame provided with a rib standing on an outer edge of a back surface and a groove in a central region along a length direction. The present invention relates to a suitable back plate holding device.

[0002]

2. Description of the Related Art A typical example of a frame back plate holding apparatus of this type is disclosed in Japanese Patent No. 2760778, which is shown in FIGS. The back plate pressing device 51 integrally includes a mounting portion 52 for mounting in the mounting groove M of the hollow frame G and a pressing portion 53 for pressing the back plate G 'of the frame G. 2 that bites into the mounting groove M on the upper surface of the mounting portion 52
The point is that the two spherical portions 54 and 54 ′ are provided symmetrically with respect to the rotation center of the mounting portion 52.

The spherical portions 54 and 54 'are provided with mounting grooves M.
In this state, the elasticity and the restoring force of the material of the hollow frame G itself assist the rotation of the holding portion 53, and have the advantage of being able to rotate lightly. ,
When the holding portion 53 is rotated about the mounting portion 52 mounted in the mounting groove M of the frame G, the spherical portion 54 is perpendicular to the length direction of the frame G as shown by a solid line in FIG. , 54 ′ are both edges M ′, M ″ of the mounting groove M.
As a result, the perpendicular state is maintained because the click stop is performed, and the back plate G ′ of the frame G can be pressed well.

[0004]

However, the range in which the spherical portions 54 and 54 'assist the turning property of the holding portion 53 by the action of both edges of the mounting groove M is limited to the range where the holding portion 5 is provided.
3 from the position perpendicular to the longitudinal direction of the frame G to the position shown by the dashed line in FIG. 6. After the spherical portions 54, 54 ′ have come off from both edge edges of the mounting groove M, the pressing portion 53 is turned. Mobility could not be assisted. That is, the pressing portion 53 is provided with a rotation property within a certain angle due to the action of the spherical portions 54 and 54 ′, but when the pressing portion 53 deviates from the rotation angle, it is necessary to strongly rotate the finger. When exchanging the back plate housed in the frame G together with the painting and the completed jigsaw puzzle, there is a problem that it takes time to operate the pressing portion 53.

The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a new operation method for simplifying an operation for exchanging a back plate housed in a frame G together with a painting and a completed jigsaw puzzle. An object of the present invention is to provide a back plate holding device having a proper frame.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a back plate holding apparatus for applying a rib standing on an outer edge of a back surface and a groove in a central region along a longitudinal direction to a hollow frame. A head having a constricted portion capable of engaging with the groove is formed near the base end of the arm piece, and a constricted portion engaging the arm piece with the groove is formed at both corners of the base end of the arm piece. The arm piece is provided by a protrusion which can press the standing rib so as to bend outward when it is turned to the center, and the elasticity (deformability) of the material of the hollow frame itself and a restoring force (repulsive force). It is configured to be able to efficiently assist the turning property of the camera.

Further, according to the invention described in claim 2, the base end edge of the arm piece is a contact surface capable of contacting the standing rib (the whole area does not necessarily have to contact uniformly). The arm piece is configured to stably hold the holding position of the back plate (the arm piece is perpendicular to the frame).

[0010] Further, the invention according to claim 3 is characterized in that, at both edges in the width direction of a base end portion of the arm piece, a projecting portion which comes into contact with the standing rib is provided. The non-pressing position of the back plate (the arm piece is in a state parallel to the frame) can be stably maintained.

Further, the invention according to claim 4 is characterized in that at least one side edge of the outer end face of the head is provided with a groove widening slope which cuts into the groove, and the frame has four corners. Even after all the parts are connected and completed, the whole or a part of the back plate pressing device of the present invention can be easily pushed into the groove of the frame later.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a back plate holding device,
FIG. 2 is a plan view of the back plate press device of the present invention at the time of press operation,
FIG. 3A shows a state in which the arm piece is turned to a holding position (perpendicular) with respect to the frame, FIG. 3B shows a state in which the arm piece is turned in a non-pressing position (parallel), and FIG. FIG. 3A is a cross-sectional view of a working procedure for pushing the back plate holding device of the present application into the back groove of the frame, (a) before the pushing work (at the time of setting), (b) during the pushing work, (c) after the pushing work is completed, FIG. 4 is a back side perspective view of a frame showing a use state of the back plate pressing device of the present application.

The back plate holding device 1 of the present invention is applied to a hollow frame G provided with a rib R standing on the outer edge of the rear surface and a groove M in the center region along the length direction. It comprises a head 3 having a constricted portion 2 which can be engaged, and an arm piece 4 having the head 3 formed near the base end.

The arm 4 has a base 4a and a tip 4b.
Are stepped through the inclined portion 4c, and the center in the width direction of the inclined portion 4c is reinforced by a rib 4d. The rib 4d also serves as a kind of handle when the arm piece 4 is rotated by a finger. When the arm piece 4 is perpendicular to the frame G, the arm piece 4 is positioned so as to press the back plate G 'of the frame G. When the arm piece 4 is parallel to the frame G, the arm piece 4 is at a non-pressing position of the back plate G' of the frame G. Become.

The base edge 4a 'of the arm piece 4 is rotated about the constricted portion 2 engaged with the groove M of the picture frame G, and is perpendicular to the picture frame G as shown in FIG. , The contact surface is a contact surface that can contact the standing rib R. The base edge (contact surface) 4a 'is effective for stably holding the arm piece 4 at the pressing position of the back plate G' (the arm piece 4 is orthogonal to the frame G). The base edge (contact surface) 4
a 'is not necessarily limited to the case where the entire area thereof stands uniformly and is in contact with the rib R, but also includes the case where it is in contact with two points (or several points).

At both corners of the base edge 4a 'of the arm piece 4, when the arm piece 4 is turned around the constricted portion 2 engaged with the groove M of the picture frame G, the standing rib R is formed. As shown in FIG. 2 (b), there are provided protrusions 5, 5 which can be pressed to bend outward. In the drawing, the projecting portions 5, 5 are formed by using (leaving) the corners of the base end edge 4a 'of the arm piece 4 without dropping them.
It may be formed to protrude in a “shape”. In this case, the shape of the protruding portion 5 is not limited to a square as shown in the figure, but may be an arc or another shape.

2 (a), the arm piece 4 is in contact with the standing rib R at both edges in the width direction of the base of the arm piece 4 as shown in FIG. Overhang portions 6, 6 are provided. The overhang portion 6 is effective for stably holding the arm piece 4 at the non-pressing position of the back plate G '(the state where the arm piece 4 is parallel to the frame G). The overhanging portion 6 is not limited to the case where the entire area thereof stands uniformly and touches the rib R, but also includes the case where it touches at two points (or several points).

At least one side edge of the outer end surface 3a of the head portion 3 is provided with a groove widening slope 7 that cuts into the groove M. As shown in FIG. 3A, the groove expanding slope 7 is set such that the constricted portion 2 on the side facing the slope 7 is fitted into the edge M 'of the groove M, and then, as shown in FIG. As shown in FIG. 3B, when the finger is pressed strongly from the outside to the inside (in the direction of arrow D), the edge M 'is slid and the groove M is expanded.
As shown in (c), it is possible to pass. This is particularly effective for allowing the back plate holding device 1 of the present invention to be pressed into the groove M even after all four corners of the frame G are connected as shown in FIG.

A method of using the back plate holding device 1 of the present invention will be described with reference to FIGS. 2 (a) to 2 (c). FIG. 2 (a)
A state is shown in which the arm piece 4 of the back plate pressing device 1 of the present application presses the back plate G ′ housed in the frame G together with the picture and the completed jigsaw puzzle. In this state, the arm piece 4 is located orthogonal to the frame G, and the base edge 4 of the arm piece 4
a 'is stable in a state where it contacts the standing rib R.

Next, the arm piece 4 is rotated in the direction of arrow a around the constricted portion 2 engaged with the groove M of the picture frame G. As a result, the protruding portion 5 provided at the base end corner of the arm piece 4 presses the standing rib R so as to bend outward (in the direction of arrow B), and the reaction force of the protruding rib R via the constricted portion 2 causes the frame G to move. 2 is pressed outward (in the direction of arrow C) of one edge M ″ of the groove M (opposing the edge M ′ on the side of the standing rib R).
(B) The neutral point is reached.

Further, when the arm 4 is rotated in the same direction and the protruding portion 5 passes through the neutral point shown in FIG.
The protruding portion 5 is pressed in the directions of arrows B ′ and C ′ by the repulsive force (restoring force) of the standing rib R and the edge M ″,
The arm piece 4 is forcibly made parallel to the frame G as shown in FIG.

In the state where the arm piece 4 is parallel to the frame G, the overhanging portions 6 provided on both edges in the width direction at the base end thereof are in contact with the standing ribs R, so that the state is stable. Will be done. That is, the projecting portion 6 stably holds the arm piece 4 at the non-pressing position (the state where the arm piece 4 is parallel to the frame G).

Next, the back plate holding device 1 of the present invention is mounted on the frame G 4
Pushing into the groove M after connecting all the corners will be described. First, the constriction 2 of the back plate holding device 1 of the present application
Is set so as to fit into the edge M ′ of the groove M as shown in FIG. 3A (a part of the head 3 is in the groove M).
In this set state, the groove expanding slope 7 provided on one side edge of the head 3 is in contact with the edge M ″ of the groove M.

Next, the back plate pressing device 1 of the present invention is strongly pressed downward from the upper surface of the arm piece 4 (the direction in which the head 3 enters from the outside of the groove M to the inside = the direction indicated by the arrow D). As a result, as shown in FIG. 3 (b), the head 3 slides along the edge M ″ of the groove M while sliding the edge M ″ of the groove M against the elasticity of the material. Since the groove M is deformed in the direction, the groove M expands.

Further, when a downward force (force in the direction of arrow D) is continuously applied to the back plate holding device 1 of the present invention, the groove expanding slope 7 passes through the edge M ″ of the groove M, and The edge M ″ of the groove M that was deformed instantaneously is restored in the direction of the arrow E ′ due to the elasticity of the material as shown in FIG. 3C, and the edge M ″ of the groove M is fitted into the constricted portion 2 of the head 3. This completes the work of pushing the head 3 of the back plate presser 1 of the present application into the groove M of the frame G.

[0024]

As described above, the present invention relates to a back plate holding apparatus which is applied to a hollow frame provided with a rib standing on the outer edge of the rear surface and a groove in the center area along the length direction. A head having a constricted portion that can be engaged is formed near the base end of the arm piece, and the arm piece is rotated around the constricted portion engaged with the groove at both corners of the base end of the arm piece. When the standing rib is provided with a protruding portion that can be pressed so as to bend outward, when the arm piece is operated from the back plate holding position to the non-holding position, and vice versa, the hollow frame itself is The elasticity (deformability) of the material and the restoring force (repulsive force) can efficiently assist the turning property of the arm piece. Therefore, an excellent effect that the operation of the arm piece can be performed lightly with one touch is achieved.

According to the second aspect of the present invention, the base end edge of the arm piece has a contact surface capable of contacting the standing rib (the entire area does not have to be in uniform contact). Therefore, the present invention has an excellent effect that the arm piece can be stably held at the back plate holding position (the arm piece is perpendicular to the frame).

Further, according to a third aspect of the present invention, when the arm piece is arranged along both sides of the width direction of the base end portion of the arm piece in the groove direction, the projecting piece contacts the standing rib. Since the arm portion is provided, an excellent effect of stably holding the arm piece at the non-pressing position can be obtained.

Furthermore, in the invention according to a fourth aspect, at least one side edge of the outer end face of the head comes into contact with the groove edge when the head is pressed into the groove from outside to inside. Since the present invention is characterized by the provision of the groove widening slope, it has an excellent effect that the back plate holding device of the present invention can be easily pushed into the groove even after all four corners of the frame are connected.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a back plate holding device of the present application.

FIGS. 2A and 2B are plan views of the back plate pressing device of the present application when the pressing operation is performed, in which FIG. 2A is rotated to a pressing position (orthogonal) of an arm piece with respect to a frame, FIG. ) Indicates a state in which the arm has been turned to the non-pressing position (parallel).

FIGS. 3A and 3B are cross-sectional views of a procedure for pushing a back plate holding device of the present application into a back groove of a frame, where FIG. 3A is before pushing (when set), FIG. 3B is during pushing, and FIG. After completion.

FIG. 4 is a back side perspective view of a frame showing a use state of the back plate pressing device of the present application.

FIG. 5 is an external perspective view of a conventional back plate holding device.

FIG. 6 is a plan view of a conventional back plate pressing device at the time of pressing operation.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 back plate holding device of the present application 2 neck portion 3 head 4 arm piece 4a base of arm piece 4a ′ base end edge of arm piece (contact surface with standing rib) 4b tip end of arm piece 4c inclined part of arm piece 4d arm One rib 5 Projecting part 6 Overhanging part R Standing rib G Hollow frame G 'Back plate M Groove M', M "Groove edge 51 Conventional back plate holding device 52 Mounting part 53 Holding part 54, 54 'Spherical part

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[Procedure amendment]

[Submission Date] August 7, 2000 (2000.8.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a back plate holding apparatus for applying a rib standing on an outer edge of a back surface and a groove in a central region along a longitudinal direction to a hollow frame. there are, it forms a head with a constricted portion engageable with the groove in the base end side of the arm piece, constricted the arm piece
Parts when rotated about the, so the protrusion proximal end corners of the arm piece can be pressed to flex the standing rib outwardly
Characterized in that there, is configured as the rotation of the arm piece can be efficiently assisted by the hollow frame own material elasticity (deformability) and resilience (repulsive force).

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

[0024]

As described above, the present invention relates to a back plate holding apparatus which is applied to a hollow frame provided with a rib standing on the outer edge of the rear surface and a groove in the center area along the length direction. A head having a constricted portion that can be engaged is formed near the base end of the arm piece, and the arm piece is turned around the constricted portion.
To come, since the proximal end corners of the arm piece is characterized in that become protrusions can be pressed to flex the standing ribs outward, non-pressing position the arm piece from the back plate pressing position, and this At the time of the reverse operation, the turning property of the arm piece can be efficiently assisted by the elasticity (deformability) and the restoring force (repulsive force) of the material of the hollow frame itself. Therefore, an excellent effect that the operation of the arm piece can be performed lightly with one touch is achieved.

Claims (4)

[Claims] 1. A back plate holding device applied to a hollow frame provided with a rib standing on an outer edge of a rear surface and a groove in a central region along a length direction, the head having a constricted portion capable of engaging with the groove. Is formed near the base end of the arm piece, and at both corners of the base end of the arm piece, when the arm piece is turned around the constricted portion engaged with the groove, the standing rib is turned outward. A frame back plate holding device provided with a protruding portion that can be pressed to bend. 2. The device according to claim 1, wherein a base end edge of the arm piece is a contact surface capable of contacting the standing rib.
2. A backing plate holding device for a picture frame according to item 1. 3. The frame back plate holding device according to claim 1, wherein projections are provided at both widthwise edges of the base of the arm piece so as to abut on the standing ribs. 4. The back of a picture frame according to claim 1, wherein a groove-enlarging slope that cuts into the groove is provided on at least one side edge of the outer end surface of the head. Plate holding device.