JPS646770Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a buckle device used, for example, to connect a dust collection case of a vacuum cleaner to a main body containing an electric blower.

Conventional technology In order to reduce the number of parts, conventional buckle devices employ resin molded parts and take advantage of the elasticity of the resin to integrally form a spring part with the buckle. In the case of a machine, the combination of minimum functional parts consisted of only three parts: the dust collection case, the main buckle, and the main body. Most buckle bodies were attached to a dust collection case, and the buckle body was also provided with a locking part to lock with a locking part provided on the main body. In this case, the main body of the buckle is required to have contradictory characteristics, such as being able to be easily attached to the dust collection case during product assembly, and not coming off when using a vacuum cleaner.
The following method was adopted.

In the attached drawings, FIGS. 9 to 11, 1 is a dust collection case, 2 is a main body of the buckle, 3 is a shaft thereof, 4 is a shaft hole, and 5 is a mounting wall. To attach the buckle main body 2 to the dust collection case 1, attach the mounting wall 5 to the 10th
The coaxial portion 3 is bent in the direction of arrow b in the figures and FIG. 11, and pushed in the direction of arrow a.
into the shaft hole 4.

Problems to be Solved by the Invention Accordingly, in the above configuration, the mounting wall 5 must be able to flex well, and its vertical dimensions and span must be wide. For this reason, dust collection case 1
Since the height x of the dust collection part cannot be made large and the dust collection capacity cannot be increased, the number of times the garbage must be thrown away has inevitably increased.

The present invention eliminates these conventional drawbacks and provides a buckle device that is small and simple in construction.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is designed to bend the shank side of the buckle main body in a direction substantially perpendicular to the height direction of the mounting body. is attached to the mounting body, and after the mounting, the locking portion that is integrally provided on the mounting wall surface is brought into contact.

Therefore, according to the present invention, the main body of the buckle can be easily installed without worrying about height restrictions such as the dust collection case, and moreover, preventing the main body of the buckle from coming off after installation can be done without cleaning work. Since it can be firmly prevented from coming off under heavy loads such as during heavy loads, the dust collection capacity can be increased efficiently and the number of parts does not increase at all.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 8, 6 is a main body of a vacuum cleaner having a built-in electric blower 7, and 8 is a dust collection case detachably attached to the front thereof. 9
1 is a main body handle, 10 is a dust collection case handle, and 11 is an intake port, to which a cleaning hose (not shown) is detachably attached. 12 is a caster, and 13 is a roller, each of which is used for movement. 14 is an exhaust port. 15 is a main body of the buckle, 16 is a locking portion thereof, 17 is a spring body portion, and 18 is a shaft arm portion, from which a shaft portion 19 is integrally provided. 20 is an operation section. Reference numeral 21 denotes a main body locking portion formed integrally with the main body 6. Reference numeral 22 denotes a shaft hole provided in the dust collection case 8, into which the buckle main body 15 is fitted so as to be rotatable in correspondence with the shaft portion 19. 23 is a mounting wall provided with a shaft hole 22, and a locking protrusion 24 is integrally formed on this mounting wall 23. 25 is the shaft arm portion 18 of the buckle main body 15
The locking protrusion 24 is the locking end of the main body 6.
and the dust collection case 8 are positioned so as to come into pressure contact with each other when opened in the separation direction. 26 is a dust collection filter, 2
7 is the filter rubber, which makes the dust collecting section 28 airtight.

With the above configuration, when cleaning, the electric blower 7
By operating the , air flows from a cleaning hose (not shown) through the intake port 11 , passes through the dust collection section 28 , the dust collection filter 26 , and is discharged from the exhaust port 14 by the electric blower 7 . , dust is collected in the dust collecting section 28.

The locking portion 16 of the buckle main body 15 engages with the main body locking portion 21 to maintain the connection between the main body 6 and the dust collection case 8. When a force that releases the connection between the two is applied, the locking end 25 of the shaft arm portion 18 and the locking protrusion 24 of the dust collection case 8 come into pressure contact, so that the main body 6 and the dust collection case 8 are separated. There's nothing to do. Also, when the operating section 20 is pushed in (arrow e), the shaft section 1
9 as the rotation center, the locking portion 16 is disengaged from the main body locking portion 21, and the main body 6 and the dust collection case 8 can be separated (arrows f, g). When the push-in of the operating part 20 is stopped, the deformation force of the spring body part 17 causes the
The buckle main body 15 returns to its original position. To attach the buckle main body 15 to the mounting wall 23 of the dust collection case 8, as shown in FIG.
Insert diagonally from the open side (upper side) of 4 (arrow h),
Push the shaft arm portion 18 while bending it in the direction of arrow d in FIG. 9 (arrow c), and insert the shaft portion 19 into the shaft hole 22.
As for the deflection allowance of the shaft arm portion 18, the longer the arm length, the easier the deflection can be made. Further, it can be mounted without depending on the deflection of the mounting wall 23.

Effects of the invention As described above, the buckle device of the present invention can be assembled to the mounting body without being affected by the deflection of the mounting body, so the volume of the buckle device can be extremely reduced, and other volumes such as dust collection capacity can be reduced. In addition to being able to utilize space rationally without sacrificing space, it has a small number of parts, is easy to assemble, and has the excellent effect of being able to firmly prevent it from coming out against the load during use.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main parts of a vacuum cleaner having a buckle device according to an embodiment of the present invention, Fig. 2 is an overall side view, Fig. 3 is a front view of the dust collection case as seen from the main body side, and Fig. 4 Figure 5 is a perspective view of the buckle main body, Figure 5 is a perspective view of the attachment part of the dust collection case, Figure 6 is a partial sectional view of the buckle main body operated and rotated, and Figure 7 is the buckle main body attached to the dust collection case. FIG. 8 is a partial cross-sectional view when the main body of the buckle is attached. FIG. 9 is a front view of a dust collection case equipped with a conventional buckle device.
The figure is an enlarged front view of the buckle part, and FIG. 11 is a sectional view when it is installed. 15... Buckle main body, 16... Locking part, 17...
Spring body part, 18... shaft arm part, 19... shaft part,
20... Operating unit, 22... Shaft hole, 23... Mounting wall, 24... Locking protrusion.

Claims (1)

[Scope of utility model registration request] It has a locking part at one end, a spring body part at the other end, an operating part is provided between them, and a shaft of a certain length is protruded from the lower end of the operating part and the locking part on both sides. A buckle main body with a flexible shaft arm facing forward, a mounting body with a shaft hole in which the shaft is rotatably fitted facing each other, and a hole center of the shaft hole facing each other. It has a locking protrusion of a certain height located in the direction of the connecting axis and on the locking part side of the main body of the buckle and integrally formed perpendicularly to the rear wall surface of the mount body, and this locking protrusion has a fixed height. A buckle device in which the rear locking end of the shaft arm of the buckle is opposed to the rear locking end of the buckle main shaft arm so that it abuts in the load direction when the lock is loaded.