JP2003131601A - Signboard frame with dropout preventive mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signboard frame which makes an opening/closing frame easily removable and which enables a user to easily make an operation to prevent the dropout thereof. SOLUTION: This signboard frame with a dropout preventive mechanism is a signboard frame provided with the opening/closing frame 2 for attaching a spreading sheet 1 to the front surface of a box-shaped frame 3 and rotationally movably fitted with a locking section 5 of the opening/closing frame 2 and a section 4 to be locked of the box-shaped frame 3 and is provided with a detachment preventive member 6 touchable to the section 4 to be locked of the box-shaped frame 3 in order to prevent the detachment of the locking section 5 and the section 4 to be locked and this detachment preventive member 6 is provided with movable means which is capable of releasing the touchable state to the section 4 to be locked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signboard frame with a dropout prevention mechanism that can be easily removed without accidentally dropping it off.

[0002]

2. Description of the Related Art In a signboard frame for displaying a sheet of an advertisement or the like in a spread state, the opening / closing frame is often attached by a hinge or the like. However, this method is difficult to attach, especially for a large frame body, requires a large number of hinges, and requires a large number of hinge attaching screws, so that the attaching operation is troublesome. In addition, even in the method of fitting the frame body, it is necessary to fix the slip-off stopper to the upper portion of the frame body with a screw, so that the signboard frame to be opened and closed must be opened at a large angle, which is extremely large in the case of a large and heavy signboard. It was troublesome and could accidentally fall off, which was extremely dangerous during work. Further, when exchanging the advertising sheet, it is necessary to open the signboard wide and remove the screws, which requires a great deal of work.

A conventional fitting type signboard frame is shown in FIG. 11 of the prior art. In FIG. 11 (A), the locking portion 23 of the opening / closing frame 20 has a box-shaped frame body.
It shows a state in which the locked portion 22 of 21 is locked and stationary. Figure
11 (B) shows a state in which the open / close frame 20 is lifted up. The open / close frame 20 is lifted up until the vertical frame 24 comes into contact with the bottom surface 25 of the locked portion, at which time the locking portion 23 is completely separated from the locked portion 22 and moves above the locked portion 22. In this state, open / close frame
Opening and closing the frame by pulling 20 horizontally from the box-shaped frame 21
Even if there is no opening angle between the box-shaped frame body 20 and the box-shaped frame body 21, the open-close frame 20 is separated from the box-shaped frame body 21 as shown in FIG. 11C. There was a risk of it.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the opening and closing frame can be easily attached and detached, there is no risk of dropping it during work, and the signboard frame with a dropout prevention mechanism is safe and easy to replace. The purpose is to provide.

[0005]

According to a first aspect of the present invention, there is provided a signboard frame with a dropout prevention mechanism, which comprises an opening / closing frame for mounting a spreading sheet on a front surface of a box-shaped frame, and locking the opening / closing frame. In the signboard frame in which the locking portion and the locked portion of the box-shaped frame are rotatably fitted, the locking portion of the opening / closing frame has a box shape to prevent the locking portion and the locked portion from separating. It is characterized in that it is provided with a separation preventing member capable of abutting against the locked portion of the frame body. According to this structure, it is possible to eliminate a gap required to separate the fitted locking portion and locked portion from each other and prevent the locking portion and the locked portion from being accidentally separated.

According to the second aspect of the present invention, in the signboard frame with a fall-out prevention mechanism, the separation-prevention member is provided with a movable means capable of releasing a state in which it can be brought into contact with the locked portion. Characterize. Here, the movable means includes all the concepts of moving the separation preventing member from the part in a state where it can abut the locked part to the release part.

For example, as a movable means, a detachment prevention member is provided in the holding body of the opening / closing frame, and the detachment prevention member is projected from the holding body and fixed so as to be able to contact the locked portion so that the opening / closing frame can be contacted. From the position where it is preventing the separation of
Examples include means for releasing the fixation, moving it, storing it in the holding body, and setting the opening / closing frame in a detachable state.

According to this structure, since the separation preventing member is housed in the holding body, even if a large pressure due to the weight of the opening / closing frame is applied to the separation preventing member, the area of the holding body that contacts the separation preventing member. Since the pressure is dispersed and applied to the separation prevention member, a part of the separation prevention member is not damaged or deformed, the holder can stably support the separation prevention member, and the structure can withstand the weight of the opening / closing frame. it can. Further, the opening / closing frame is slightly opened by providing the fixing means for restricting the position of the separation preventing member on the distal side of the locking portion of the opening / closing frame holding body,
The opening / closing frame can be freely prevented from being detached and removed only by a simple operation of changing and fixing the position of the detachment preventing member to be moved.

The separation prevention member is preferably a flat plate member having a rectangular end surface, and the holding member is provided with a holding groove having a shape adapted to the flat plate member, for example, and the separation prevention member is movable in the holding groove. It is preferable that the opening / closing frame is provided with a cylindrical body for holding the cylindrical member, or the separation preventing member and the holding body are compatible and the separation preventing member is movable. The shape does not matter as long as it is in a state.

The fixing means is not limited, but for example, two screw holes are provided in the holding body so that the separation prevention member and the holding body are located in a state in which the separation preventing member is projected and in a state in which it is stored. There is a method in which one position is opened in the separation prevention member and the separation prevention member and the holding body are fastened and fixed with a screw. While visually checking from the outside, the screw hole side surface of the separation prevention member is so that the screw can be tightened with a screwdriver etc.
It is exposed from the holder.

On the other hand, a cylindrical retaining member is inserted with a columnar separation preventing member, and a convex portion standing upright with respect to the separation preventing member is provided, and the separation preventing member is rotated to open the side surface of the cylinder. By means of a projection provided on a notch provided in the portion, a notch is provided at two positions, a position where the separation prevention member projects and a position where the separation prevention member is stored, and two positions are provided by rotating and moving the separation prevention member. Alternatively, the separation prevention member may be fixed by fixing the separation prevention member. That is, a method using a round bar or square bar latch mechanism may be used.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. The invention is not limited to these drawings.

FIG. 1 is an overall view of a sheet signboard type signboard frame. The opening / closing frame 2 on which the expansion sheet 1 is expanded is the locking means 11
Therefore, the box-shaped frame body 3 is provided.

FIG. 2 shows an enlarged view of the locking means 11. The locking portion 5 of the open / close frame 2 is locked to the locked portion 4 of the box-shaped frame body 3. Further, the vertical frame 7 of the open / close frame 2 has a detachment prevention member 6
Is fixed in a protruding state. Then, the state in which the open / close frame 2 is lifted in this state is shown by a dotted line, but the separation preventing member 6a abuts the bottom surface 12 of the locked portion, and the locking portion 5a is
It can only be raised to a position where the locking with the locked portion 4 cannot be released. Therefore, although the open / close frame 2 can be moved up and down to some extent, it cannot be removed.

FIG. 3 shows a state in which the open / close frame 2 is slightly open. Even at this opening angle, the separation preventing member 6a contacts the bottom surface 12 of the locked portion, and the locking portion 5a is not unlocked from the locked portion 4. Therefore, the opening / closing frame 2 and the box-shaped frame body 3 does not leave.

FIGS. 4 and 5 are views showing the attachment of the separation preventing member to the opening / closing frame and the movable means. A flat plate-shaped separation preventing member 6 is inserted into a holding groove 8 in a vertical frame 7 provided in the opening / closing frame 2 to be in a movable state. The separation prevention member 6 includes
A screw hole 9 for fixing the position is provided.

Next, FIG. 6 shows a state in which the open / close frame is attached to the box-shaped frame. The opening / closing frame 2 is provided with the detachment prevention member 6 stored in the holding groove 8 without protruding from the vertical frame 7.
The locking portion of is locked to the locked portion 4 of the box-shaped frame body 3. At this time, as shown in FIG. 7, the screw 10 is fastened and fixed in the lower screw hole L in the lower part of the vertical frame 7, but remove this and
As shown in FIG. 8, the separation prevention member 6 is moved upward, the screw hole 9 of the separation prevention member 6 is aligned with the upper screw hole U, and the screw is removed.
10 is attached and tightened (first embodiment).

As a result, as shown in FIG. 9, the separation preventing member 6 is held in a state of protruding from the vertical frame 7. By closing the open / close frame 2, the open / close frame does not come off.
Further, since the detachment prevention member is not visible from the outside, the signboard can be made to look good. Further, when the opening / closing frame is intentionally removed for maintenance or the like, the screw 10 is replaced with the lower screw hole L, and the protruding portion of the detachment prevention member 6 is housed in the holding groove 8 to facilitate the removal. The open / close frame can be removed.

It should be noted that, as shown in FIG.
The protrusion 16 is vertically provided on the side surface of the columnar separation preventing member 15, protrudes from the notch 17 of the cylinder 14, and is fitted in two places at the upper and lower sides in a direction orthogonal to the longitudinal direction of the cylinder 14. The movable member may be a movable means for protruding or accommodating the separation preventing member by being fitted into the portion 18 to regulate and fix the position thereof (second embodiment).

[0020]

According to the invention described in claim 1 of the present invention, by providing the separation preventing member capable of contacting the locked portion of the box-shaped frame body, an unexpected pressure is applied to the opening / closing frame. Also, it is possible to prevent the opening and closing frame from being attached to and removed from the box-shaped frame body easily and safely. Therefore, the opening / closing frame can be easily lowered, and the advertisement replacement work can be easily performed.

According to the second aspect of the present invention, the opening / closing frame is provided with the separation preventing member provided with the movable means capable of releasing the state in which the locked portion can be contacted. The operation of preventing the open / close frame from falling can be performed extremely easily. When the separation prevention member to be brought into contact with the locked portion is provided with a movable means, when the separation is prevented, the separation prevention member is projected so that it can be brought into contact with the locked portion. When the opening / closing frame is removed, the separation prevention member is moved to a position where it does not project, so that separation prevention and release can be easily switched.

Further, for example, by providing the separation prevention member in the holding body of the opening / closing frame and the fixing means at the lower part of the opening / closing frame holding body, it is easy to move the separation prevention member with the opening / closing frame slightly opened. By operation, it is possible to perform the operation of preventing the opening / closing frame from falling off or releasing it. Therefore, even if there is not enough space in front of the signboard, it can be operated with a small width. Further, by using the holding body provided with the holding groove, the same member as the member used for the frame can be used and the cost can be suppressed, and since the separation preventing member is supported in the holding groove, it is possible to handle a large pressure. Can bear.

[Brief description of drawings]

FIG. 1 is a side view showing the entire sheet stretchable signboard frame.

FIG. 2 is a diagram showing a main part of a dropout prevention mechanism.

FIG. 3 is a diagram showing a main part of a fall-out prevention mechanism showing a state in which an opening / closing frame is slightly opened.

FIG. 4 is a diagram showing an attaching operation of a separation prevention member.

FIG. 5 is a view showing an attaching operation of the separation preventing member from another angle.

FIG. 6 is a partially cutaway side view showing a state in which an opening / closing frame is attached to a box-shaped frame body.

FIG. 7 is a diagram showing a dropout prevention operation procedure (first embodiment).

FIG. 8 is a view showing another state of the dropout prevention operation procedure.

FIG. 9 is a partially cutaway side view showing a state in which the opening / closing frame is prevented from falling off.

FIG. 10 is a view showing another form of the dropout prevention mechanism (second
Embodiment).

FIG. 11 is a conventional view showing a fitting portion of (A), (B), and (C) sheet stretchable signboard frames.

[Explanation of symbols] 1 Extension sheet 2 open / close frame 3 Box-shaped frame 4 Locked part 5 Locking part 6 Separation prevention member

Claims (2)

[Claims] 1. An opening / closing frame (2) for attaching a spreading sheet (1) is provided on the front surface of a box-shaped frame (3), and the opening / closing frame (2) is provided.
In the signboard frame in which the locking part (5) of the box and the locked part (4) of the box-shaped frame (3) are rotatably fitted, the opening / closing frame (2)
The locking part (5) can be brought into contact with the locked part (4) of the box-shaped frame body (3) in order to prevent the locking part (5) and the locked part (4) from coming off. A signboard frame with a dropout prevention mechanism, characterized in that it is provided with a removal prevention member (6). 2. The disengagement prevention member according to claim 1, wherein the disengagement prevention member (6) is provided with a movable means capable of releasing a state in which the disengagement prevention member (6) can abut on the locked portion (4). A signboard frame with a mechanism.