JPH0450853Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a picture frame fastener used when fixing the four corners of a wooden picture frame.

(Conventional technology) Conventionally, the work of fixing the four corners of a picture frame (hereinafter referred to as mitori processing) involves applying adhesive, or after aligning the four corners, using fastening members such as screws to prevent disassembly. It was fixed. However, it is necessary to wait without moving until the adhesive dries, resulting in a loss of time. Moreover, when picture frames are stored or transported in the product state, they are bulky, so it is necessary to secure a space, the transport efficiency is poor, and they are easily damaged. Moreover, on the back side of the frame, a board for holding down the work and several fasteners for fixing the board to prevent it from coming off have been attached, making it difficult to reduce costs.

For this reason, in recent years we have seen picture frames made of light metal whose four corners can be disassembled, and even wooden frames that can be disassembled. As a fastener used in this fastening process, there is a patent application filed on August 17, 1988 titled "Member for joining materials." As shown in FIG. 5, this structure includes a movable member 2, which has a protrusion 22 extending horizontally on the side wall of a cylindrical leg 21, and a shaft 23 fixed vertically to the tip of the protrusion 22. , consists of a cylindrical clasp body 1 that is fitted with the shaft 23 and can be rotated, and its action is achieved by turning the clasp body 1 by half a turn using a screwdriver or the like in the groove 1a provided on the top surface of the clasp body 1. , the movable member 2 is pushed out by the amount of deviation between the center of the shaft 23 and the center of rotation of the fastener body 1.

(Problems to be Solved by the Invention) However, when the material binding member is used to cut the picture frame, a tool such as a screwdriver is required to rotate the clasp body 1 by half a turn. It was impossible to disassemble it without using tools.
Furthermore, since the movement of the extruded movable member 2 is not a linear movement but a curved movement, it is very difficult to position the hole 5a to be drilled in the picture frame frame material 5, and unless the position and dimensions of the hole 5a are accurately determined, Misalignment occurred at the four corners of the picture frame, which led to the production of defective products and poor productivity. Moreover, since the fastener main body 1 is rotated by half a rotation, many escape grooves are provided to prevent it from hitting the movable member 2. Therefore, the strength of the fastener main body 1 is weakened, making it extremely easy to break, and breakage accidents are also likely to occur. Furthermore, if the work is heavy, such as a ceramic plate, and placed in a frame, it must be reinforced with adhesive, making it impossible to disassemble it.

Furthermore, there is a limit to the size of the hole 5a that can be drilled in the picture frame frame material 5, and there is also a limit to the thickness of the clasp body 1. The distance that 2 is extruded is also limited, generally 1 mm or less, and if this dimension is small, the hole 5
It will become unusable unless the accuracy of the positional dimensions of a is improved. In addition, since the hole 5a is formed with a circular part missing from the end of the frame material 5, the end part is likely to be damaged. There were problems such as the possibility that the five comrades could not be fixed.

The object of the present invention is to provide a fastener for a picture frame that is easy to use and can drastically reduce the occurrence of breakage accidents and defective picture frames.

(Means for Solving the Problems) In order to eliminate the above problems, the present invention has been made, that is, a leg portion is provided on the lower surface of one end side of the clasp base exposed from the back surface of the picture frame, and the above-mentioned A fastener main body having a groove extending from the other end of the fastener base toward the center, and a horizontally extending projecting piece on the side wall of the leg that can be partially engaged with the other end of the fastener base. a movable member whose distal end side is engaged with the leg and has a recess near the center of the protrusion; a cam pivotally supported near the center of the fastener base; and a lever extending from the cam. It consists of an integrally molded operation member.

(Function) Next, to explain how to use the present invention, four pre-assembled products of the present invention are prepared. First, lift the lever 32 of the operating member 3 and move the movable member 2.
are separated from the leg portions 12 and inserted into the holes 5a at both ends of the picture frame frame material 5 (see FIG. 3a).
Next, the picture frame material 5 to be combined with both ends of the picture frame material 5
At the same time as preparing the hole 5 of the prepared picture frame frame material 5.
When the leg part 12 or the leg part 21 is inserted into a,
There is a gap between the ends (see Figure 3b). After insertion, when the lever 32 is pushed down toward the stepped portion 13, the cam 31 rotates and draws the movable member 2 toward it. Then, the ends of the frame material 5 fit together tightly without any gaps (see Figure 3c). A similar operation is performed on the other end of the frame material 5, and the four corners of the frame are further assembled. Since no adhesive is used in this cutting process, assembly and disassembly can be easily performed. Furthermore, since both ends of the movable member 2 of the present invention are supported by the fastener main body 1, the movable member 2
The movement becomes a linear movement and the intensity increases. That is, at one end of the movable member 2, the groove 21a and the stepped portion 13 engage, and at the other end, the tip of the protrusion 22 is inserted into the guide hole 12a and engaged.
Note that if a frame is used in which an insertion groove for inserting the work is provided in advance inside the frame material 5, the work when inserting the work into the frame becomes easier. In other words, by inserting the work into the insertion groove, surrounding the work on all sides with the frame material 5, and fixing the four corners with the product of the present invention, the work can be prevented from coming off using the conventional board for holding down the work. Eliminates the need for multiple fasteners to secure the

Next, when you want to put a new work into a picture frame, first hook the levers 32 attached to both ends of one side of the picture frame with your index finger or thumb and lift them, then insert the clasp main body 1 into the hole of the picture frame frame material 5. If you extract it from 5a,
The frame material 5 on one side comes off (see Figure 4). still,
At this time, it is advisable to insert the fastener into the hole 5a of the frame material 5 so as not to lose it. Next, remove the work from the direction in which it was removed, insert a new work into the insertion groove inside the picture frame material 5, and then
Align both ends of the device, insert the device of the present invention into the hole 5a, and fix by pushing down the lever 32.

In addition, when stocking or transporting picture frames in which the product of the present invention is used, prepare four picture frame frame materials 5,
Store the product of this invention as an accessory in a bag, etc.

(Embodiment) Below, an embodiment of the present invention will be described based on the drawings. 1 indicates a substantially oblong disk fastener base 11, a leg 12 provided on the lower surface of one end side of the fastener base 11, and the fastener base 11. The main body of the fastener is made of resin and includes a stepped portion 13 formed on the other end side of the base portion 11, and a groove 14 provided from the end of the stepped portion 13 toward the center. A guide hole 12a is provided in the intermediate portion of the leg portion 12, and a fitting hole 11a for the pin 4 passing through the groove 14 is provided near the center of the fastener base portion 11. Reference numeral 2 denotes a movable member made of resin, consisting of a cylindrical leg portion 21 having a groove 21a at the top that engages with the tip of the stepped portion 13, and a protruding piece 22 extending horizontally from the side wall of the leg portion 21. The tip of the protruding piece 22 is inserted into the guide hole 12a, and a semicircular recess 22a is provided on the leg 21 side and upper part of the protruding piece 22. 3 is cam 31
The cam 31 is rotatably supported by a pin 4 in a groove 14. A locking piece 32a is provided downwardly protruding from the end of the lever 32, and the locking piece 32a covers the upper outer periphery of the leg portion 21 and locks with the end surface of the stepped portion 13.

(Effects of the invention) Since the present invention is configured as described above, it produces the effects described below.

In the present invention, the movement of the extruded movable member 2 is a linear movement, and the movement distance can be made much larger than before, so positioning of the hole 5a to be drilled in the picture frame frame material 5 is extremely easy.
Moreover, even with rough positional dimensions of the holes 5a, it is possible to accurately align the frame members 5, and the number of defective products is drastically reduced. Therefore, productivity is improved and costs can be further reduced.

Since there are almost no grooves that reduce the strength of the conventional ones, breakage accidents are drastically reduced.
1, the tightening force is large, so even if a heavy work is placed in a frame, it can be used without adhesive.

It is not necessary to use a tool such as a screwdriver for each operation as in conventional products, and it can be easily used by simply lifting the lever 32 with a finger, and anyone can easily disassemble and assemble the picture frame frame material 5.

If you use a picture frame material 5 with an insertion groove for the work on the inside, you can eliminate the need for a presser plate attached to the back side of the frame and multiple fasteners to secure the plate so that it does not come off, which was previously required. No tools needed.

Further, the work can be replaced by simply removing the frame material 5 on one side of the frame.

If the product of this invention is used, the picture frame can be stored and transported in a disassembled state, and since it is not bulky, it does not require a large space and transportation efficiency is also improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of parts, Figs.
The figure is a perspective view of a conventional product. 1... Fastener body, 11... Fastener base, 12...
Leg portion, 14... Groove, 2... Movable member, 21... Leg portion, 22... Protruding piece, 22a... Recessed portion, 3... Operating member, 31... Cam, 32... Lever.

Claims (1)

[Scope of utility model registration request] A clasp main body 1 having a leg portion 12 on the lower surface of one end side of the clasp base 11 exposed from the back surface of the frame, and a groove 14 provided on the other end side of the clasp base 11 from the end toward the center; A horizontally extending projecting piece 22 is provided on the side wall of the leg part 21 which is partially engageable with the other end side of the fastener base 11, and the distal end thereof is connected to the leg part 1.
2, a recess 22 is formed near the center of the protruding piece 22.
a movable member 2 provided with a movable member 2, a cam 31 pivotally supported near the center of the fastener base 11, and an operating member 3 in which a lever 32 extending from the cam 31 is integrally molded.
A picture frame fastener characterized by comprising: