JPH0615517U - Middle frame of bags - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The aspect ratio of the middle frame can be determined according to the length of the pair of male connecting pieces, and the connecting state can be secured for a long time and the connection can be released easily. To lose. [Structure] Grooves 2 communicating with the edge 1b are formed in parallel on both sides of the outer surface 1a of the paired female frames 1,1 in the width direction, and the inner surfaces 1c, 1c between the grooves 2, 2 are made to be meat. Almost two thirds of thickness
To form a recess 4 having a depth of about two-thirds of the thickness of the female frame while being connected to the rear end 3a of the flexible piece 3 formed by cutting the female frame 1 into pairs. , A pair of male plates 5 for connecting the two to each other are provided with a wedge-shaped hook piece 6 projecting between the bottom of the recess 4 and the flexible piece 3 at the tip thereof, and a groove of the female frame.
The hooks 6a of the wedge-shaped hooks, which are inserted against the elastic force of the flexible pieces with the projecting pieces 7 and 7 entering the 2 guide, are locked by the rear ends of the flexible pieces 3 so that the female frames are paired with each other. Connected with plates.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a middle frame connecting means for bags such as a business bag and a travel bag, and particularly relates to a middle frame which can greatly change the aspect ratio as a middle frame only by changing the length of a pair of connecting male plates. .

[0002]

[Prior art]

 As the middle frame connecting means of this type, a metal frame or a metal plate is conventionally screwed and connected, and a plastic plate is bent and used as a substream.

[0003]

[Problems to be solved by the device]

 Although the above-mentioned conventional techniques are simple in any way, it is not easy to change the aspect ratio of the frame, and the maintenance of the connection locking state is greatly impaired by the change in the external force applied. There was a problem that it was not always fully satisfied by breaking, pulling out, and slackening.

In order to eliminate the above-mentioned problems, the present invention makes it possible to determine the aspect ratio in the connected state of the middle frames by changing the length of the pair of connecting male plates, and stabilize the connected state. The purpose is to maintain a long term and prevent easy disconnection.

[0005]

[Means for Solving the Problems]

 The above-mentioned object of the present invention is to form grooves, which communicate with the lengthwise edges of each female frame, on both sides in the width direction of the outer surface of the pair of female frames in parallel with each other in the longitudinal direction of each female frame. The inner surface of the female frame between these grooves is shaving horizontally to a depth of approximately two-thirds of the thickness of the female frame. While forming a recess having a depth of about two-thirds of the thickness of the frame, a pair of male plates for connecting the pair of female frames to each other has a bottom surface of the recess at the tip and a pair of male plates. Wedge-shaped hook pieces that enter between the inner surface of the flexible piece and the inner surface of the female frame are recessed against the elastic force of the flexible piece of the female frame using the protruding pieces that enter the groove of the female frame as guides. By locking the hook of the wedge-shaped hook piece inserted between the bottom surface and the rear end of the flexible piece that has self-returned, the female frames forming a pair are formed by the pair of male plates described above. It can be achieved by binding.

[0006]

[Action]

 The projection of the male plate inserted in the groove of each of these female frames is used as a guide in advance between the lower surface of the flexible piece of the U-shaped female frame forming a pair and the bottom surface of the recess, and the elastic force of the flexible piece is When the hook portion of the wedge-shaped hook piece is completely inserted, the flexible piece snaps back by its elasticity and the rear end of the flexible piece snaps the hook portion together to form a pair. Can be connected at their opposite sides, and the male plate can be prevented from coming off from the female frame in the connected state.

The overall aspect ratio in this connected state can be determined according to the length of the pair of male plates, and in this connected state, the male plate protrusion is inserted into the groove of the female plate. Therefore, even if a reverse lateral force in the lateral direction is applied to each plate, it will not be inadvertently twisted or bent together with the engagement of the hook piece with the flexible piece.

Further, in the above-mentioned connected state, when an external force in the direction opposite to the thickness direction is applied to each plate, the upper surface of the wedge-shaped hook piece is in contact with the lower surface of the flexible piece, and the lower surface of the hook piece is concave. The bottom surface of the groove and the bottom surface of the groove and the bottom surface of the protrusion are in contact with each other, so that they are not accidentally broken, bent, or twisted. This connection state cannot be released.

[0009]

【Example】

 Examples will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the basic structure of the present invention is that the outer surface 1a of a pair of female frames 1,1 formed by molding ABS resin, POM resin, nylon or the like into a substantially U-shape in the width direction. Grooves 2 and 2 communicating with the lengthwise edges 1b of the female frames 1 and 1 are formed on both sides of the female frame 1 in parallel to the lengthwise direction of the female frames 1, and the female frames between these grooves 2 and 2 are formed. Each inner surface 1c, 1c of 1, 1 is cut parallel to a depth of approximately two-thirds of the thickness of the female frame to form a flexible piece 3.

A recess 4 having a depth of about two-thirds of the thickness of the female frame 1 is formed on the outer surface 1a of the female frame 1 so as to be connected to the rear end 3a of the flexible piece 3.

On the other hand, a pair of male plates 5 made of plastic or the like for connecting the pair of female frames 1 and 1 has a bottom end 4a of the recess 4 of the female plate 1 and the flexible plate 5 at the tip thereof. As shown in the figures, wedge-shaped hook pieces 6 that enter between the inner surface 3b of the piece 3 and the projections 7 and 7 that enter the groove 2 of the female frame 1 are projected in parallel as shown in the figures. Set up.

Further, the hooks 6a of the wedge-shaped hook piece 6 are provided between the inner surface 3b and the bottom surface 4a of the recess against the elastic force of the flexible piece 3 of the female frame 1 by using the projecting pieces 7, 7 as guides. After the state of FIGS. 3 and 4, the rear end 3a of the flexible piece 3 which has been inserted and self-reset as shown in FIGS. 5 and 6 is engaged with the hook 6a as shown in FIGS. Thus, the pair of female frames are connected by the pair of male plates 5 as shown in FIG. 7 to form the middle frame of the bag according to the present invention.

In order to use the middle frame as shown in FIG. 7, the lengths of the pair of male plates 5, 5 are selected in advance according to the aspect ratio of the well-known bag 10 as shown in FIG. By using the inner frame a in which the female frames 1 and 1 are connected to each other as shown in FIG. It is used by fixing the sides of the bags 10.

In this state of use, since the projecting pieces 7 and 7 of the male plate 5 are inserted into the grooves 2 and 2 of the female frame 1, a reverse external force in the lateral direction is applied to each frame plate 1 and 5. However, in combination with the engagement of the hook piece 6 with the flexible piece 3, there is no delusional twisting or bending.

Further, when an external force in the thickness direction of each frame plate in the opposite direction is applied in the above-mentioned connected state, the outer surface of the wedge-shaped hook piece 6 and the inner surface 3b of the flexible piece 3 are in contact with each other as shown in FIG. The inner surface of the hook piece 6 and the bottom surface 4a of the recess 4 are in contact with each other as shown in FIG. 4, and the outer surfaces of the grooves 2 and 2 are in contact with the inner surfaces of the protruding pieces 7 and 7, respectively. As a result, the connection state can be stably secured without being accidentally broken, bent, or twisted, and the connection cannot be easily released.

[0016]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. Between the inner surface 3b of the flexible piece 3 of the pair of U-shaped female frames 1,1 and the bottom surface 4a of the recess, the projections 7,7 of the male plate 5 previously inserted in the groove 2 of the female frame 1 are formed. Guide, and when the hook portion 6a of the wedge-shaped hook piece 6 is completely inserted against the elastic force of the flexible piece 3, the flexible piece 3 is self-recovered by its elasticity and the hook portion 6a is pushed at the rear end 3a. It is possible to connect the female frames 1 and 1 that make a pair by one-shot locking with the male plates 5 and 5 on the opposite sides, and it is very easy to connect the male plate 5 to the female frame 1 and prevent it from coming off. The first effect is that it can be realized.

Since the overall aspect ratio in this connected state can be determined by the length of the pair of male plates 5, 5, the compatibility of the female frames 1, 1 is improved, and the connected state is easily released. It also has the second and third effects that it cannot be locked and has a locking effect.

Further, since the projecting pieces 7 and 7 of the male plate 5 are inserted into the grooves 2 and 2 of the female frame 1, the frame plates 1 and 5 can be flexed even if a reverse external force in the lateral direction is applied. In combination with the engagement of the hook piece 6 with the piece 3, there is no delicate twisting or bending, and there is a fourth effect that the connection state between the pair of female frames can be secured for a long period of time.

When an external force in the thickness direction of each plate is applied in the above-described connected state, the upper surface of the wedge-shaped hook piece 6 and the inner surface 3b of the flexible piece 3 are in contact with each other, and the hook piece 6 The inner surface and the bottom surface 4a of the recess 4 are in contact with each other, and the outer surfaces of the grooves 2 and 2 and the inner surfaces of the projecting pieces 7 and 7 are in contact with each other. There is also a fifth effect that the connected state can be secured more stably without being worn.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing an essential part of an embodiment of the present invention.

FIG. 3 is a vertical sectional side view of a main part of the one shown in FIG.

FIG. 4 is a vertical sectional side view showing a state different from that of FIG.

FIG. 5 is a vertical sectional side view showing a state different from that in FIG.

FIG. 6 is a perspective view showing a connected state of the one shown in FIG.

FIG. 7 is a perspective view showing a connected state of the one shown in FIG.

FIG. 8 is a cross-sectional view showing a usage example of the one shown in FIG.

[Explanation of symbols]

 1 pair of female frames 1a Outer surface 1b Edge 1c Inner surface 2 Groove 3 Flexible piece 3a Rear end 3b Inner surface 4 Recess 4a Bottom 5 Pair of male connecting plates 5a Tip 6 Wedge-like hook 6a Hook 7 Protrusion

Claims (1)

[Scope of utility model registration request] 1. A pair of female frames 1, 1 formed in a substantially U shape.
Grooves 2 communicating with the lengthwise edges 1b of the female frames 1 and 1 are formed on both sides in the width direction of the outer surface 1a of the female frame 1 in parallel with the lengthwise direction of the female frames 1 and 2. Female frame between
The inner surface 1c of the female frame 1 is connected to the outer surface 1a of the female frame 1 by connecting it to the rear end 3a of the flexible piece 3 made by cutting the inner frame 1c in parallel to the depth of approximately two-thirds of the thickness of the female frame. While forming the recess 4 having a depth of about two-thirds of the thickness of the female frame, the female frames 1, 2 forming the pair are formed.
A pair of male plates 5 for connecting one to the other are provided at their tips with a bottom surface 4a of the recess 4 of the female frame 1 and an inner surface 3b of the flexible piece 3.
And project the wedge-shaped hook pieces 6 that enter between
The wedge-shaped hook piece 6 inserted between the inner surface 3b and the bottom surface 4a of the recess against the elastic force of the flexible piece 3 of the female frame 1 with the projecting pieces 7, 7 entering the groove 2 of the female frame 1 as a guide. An inner frame of a bag formed by connecting a pair of female frames by the pair of male plates 5 by locking the hook portion 6a of the self-returned flexible piece 3 at the rear end 3a.