JPS602528B2 - Heat insulation board joining device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat insulating plate joining device suitable for joining heat insulating boards provided with foamed heat insulating material, and which simplifies the positioning of the actuating metal fitting when assembling the actuating metal fitting and the hanger, thereby facilitating assembly work. In addition, the device is operated smoothly by applying a predetermined torque to the operating metal fittings that matches the rotation position of the lock, and furthermore, the rotation position of the lock can be confirmed from the outside when connecting the insulation plate. The purpose is to prevent concession manipulation.

Embodiments of the present invention will be explained below with reference to the drawings.
is an assembly type refrigerator consisting of a plurality of heat insulating plates 2 connected in a separable manner, and is equipped with a cooling device necessary to cool the inside of the refrigerator, and one side is opened so that the operator can enter and exit the refrigerator. It has a door for use.

As shown in FIG. 2, the heat insulating board 2 has both sides made of plates 3 and 4 made of suitable materials such as uncast iron plates, stainless steel plates, aluminum plates, or plywood plates, and the inside is insulated by foaming urethane. A first connecting device 7 having a hanging picture 6 (described later) on the side surface and a second connecting device 9 having a hanging shaft 8 are fixed by the adhesive force of the urethane foam. The first and second coupling devices 7 and 9 each have two frames 10.
, 10', the lock chamber 1 is closed on one side by joining the lock chamber 1.
1. A recess 12 and a fin 13 are formed, and a wisteria metal 6 supported by an operating fitting 14 attached to the frame bodies 10, 10' so as to be freely rotatable is attached to the key chamber 11 of the first coupling device 7. The key chamber 11 of the two-coupling device 9 is equipped with a hanging shaft 8 that engages with the pig metal.

As shown in FIG. 4, the actuation fitting has protrusions 14b eccentrically protruding from the center of the center wall 14a on both sides, and a square hole 15 passing through the protrusions. A coil spring 16a and a cap 16b are attached to the side wall 14c located on a line connecting the center of the thick part and the center of the square hole, that is, on a line rotated 1800 times from the center of the square hole 15. A recess 17 is formed to house a material 16 which elastically presses the peripheral end face of the hole to create friction with the lock 6, which will be described later. First and second guides 14e and 14f are formed that protrude from the thick portion 14d in the clockwise and counterclockwise directions, respectively, with a slightly wider interval L between them. Further, the suspension 6 is connected to the operating fitting 1 as shown in FIG.
4, a competing hole 18, a key portion 6a that engages with the suspension shaft 8, and an engagement recess 20 that engages with a locking pin 19 fixed to the frames 10, 10'.

The hole has a circular portion of about 225 degrees on its inner circumferential surface 18a, and a first substantially semicircular portion on the other end surface portion on the key side.
, second and third grooves 21, 22, and 23 are formed in order in the clockwise direction, and a concave guide groove 24 is formed in the counterclockwise direction of the first groove. Next, the 6th and 7th
, 9 and 10, the assembly of the first coupling device 7 will be described. The device 7 accommodates the member 16 in the recess 17 of the actuation fitting 14, compresses the protruding portion of the coupling device 14, and connects the first coupling device 7 to the first groove of the lock 6. 21, and the second guide 14f is inserted into the guide groove portion 2.
4 and fit the operating fitting 14 into the hole 18, and
After temporarily fixing the actuating metal fitting 14 with the reaction force, the actuating metal fitting 1
4 clockwise about 30 degrees to insert the member 16 into the first groove 2.
1 to the second groove 22 until the lock 6 becomes the longest, and in that state, one protruding part 14b of the actuating fitting 14 is rotatably inserted into the cylindrical part 25 of one frame 10'. , during installation after assembly, or during transportation and connection of the heat insulating board 2 equipped with the first coupling device 7, the hanger 6 rotates due to vibration etc. and protrudes from the frames 10, 10', and during the coupling operation, the hook 6 rotates due to vibration etc. 2. In order to prevent the joining work from being hindered by, for example, supporting the heat insulating plate 2 equipped with the joining device 9, the engagement recess 20 of the lock 6 is provided.
It is assembled by fitting the locking pin 19 to the locking pin 19 to temporarily fix the lock 6 to the lock chamber 11, and then joining the other frame 10 to the corresponding rear frame 10'.

Furthermore, even if the lock 6 is not formed with the engagement recess 20 and the first coupling device 7 is not provided with the locking pin 19, for example, the lock 6 may not be connected to the lock or the actuation fitting 14. Frame body 10
, 10', the lock 6 may be temporarily held in the lock chamber 11 so that it does not rotate even when subjected to vibrations. Next, according to Figures 2, 3, 6, 7, 8, and 9,
The operation of the first coupling device 7, which is equipped with a lock 6 in which an engagement recess 20 is formed, frames 10 and 10' provided with a locking pin 19, etc., will be explained.A handle 26 is inserted into a square hole 15. When the actuating metal fitting 14 is rotated clockwise, the lock 6 does not rotate because it is engaged with the locking pin 19, and the actuating metal fitting 14
The capital member 16 rotates while elastically compressing the member 16 that is joined to the second groove portion 22 inward in the rotational direction.
Due to this rotation, the lock 6 gradually moves in the direction of the operating metal fitting 14, and becomes shorter than the longest length between the key part 6a and the square hole 15, and the actuating metal fitting 14 rotates approximately 30 degrees to generate a predetermined torque. , that is, when the frictional force overcomes the reaction force of the member 16 and the member 16 moves from the second groove part 22 to the third groove part 23, the locking pin 19 is temporarily attached to prevent rotation. The fixed lock 6 comes off the locking pin 19. Furthermore, when the actuation metal fitting 14 is rotated, the lock 6 rotates together with the actuation metal fitting and projects out of the lock chamber 11, and hits the hanging shaft 8 of the second coupling device 9 in a substantially maximum protruding state. After the lock 6 hits the lock shaft 8, only the operating metal fitting 14 rotates as described above, causing the lock 6 to slide linearly in the direction of the operating metal fitting 14, and the key portion 6a
is engaged with the hanging shaft 8 of the second coupling device 9, and the heat insulating plate 2,
2 are firmly connected. Furthermore, when the actuating metal fitting 14 is rotated, the frictional force overcomes the anti-trailing force of the member 16, and the actuating metal fitting 1 is rotated.
4 obtains a predetermined torque, the member 16 moves from the third groove 23 to the circular portion of the peripheral end surface 18a of the hole 18, and only the operating fitting 14 further rotates to complete the connection of the heat insulating plates 2, 2. . Incidentally, when the heat insulating plates 2, 2 are to be removed, the operating metal fitting 1I4 may be rotated counterclockwise.

In addition, when the lock 6 is temporarily held in the lock chamber 11 due to the frictional resistance between the lock 6 or the operating fitting 14 and the frames 10, 10', the handle 26 is inserted into the square hole 15. When the actuating metal fitting 14 is rotated, since the member 16 is iron-coupled with the second groove 2:2, the lock 6 also rotates and this lock hits the hanging shaft 8, and after that, only the actuating metal fitting 14 rotates. The member 16 moves from the second groove portion 22 to the third groove portion 23, and the lock 6 moves in the direction of the actuating metal fitting 14. When the actuating metal fitting 14 is further rotated, the member 16 moves accordingly. Hole 1 from third groove 23
8, the lock 6 slides further toward the operating fitting 14, and the key portion 6a engages with the lock shaft 8 to firmly connect the heat insulating plates 2, 2. According to the above configuration, when assembling the suspension 6 and the actuating metal fitting 14, the capital material 16 stored in the actuating metal fitting 14 is elastically compressed and its protruding portion is iron-fitted to the first groove portion 21, so that the actuating metal fitting 14 to the hole 18 of the stake 6, the positioning becomes easy, and moreover, the part village 16
The actuating fitting 14 can be temporarily fixed to the lock 6 even with a counter-trailing force of 1, and the assembly work can be carried out quickly and easily.

In addition, the lock 6 is rotated in the lock chamber 11 by rotating the operating fitting 14.
Since the member 16 moves from the first groove part 21 and competes with the second groove part 22 when it becomes the longest, the free rotation of the lock 6 is prevented until the actuating fitting 14 obtains a predetermined torque, and the lock 6 is rotated. The lock 6 can be moved to a length that allows the key portion 6a to reliably engage the lock shaft 8 when it is projected outside the lock chamber 11. Furthermore,
When the actuation fitting 14 is rotated and the lock 6 protrudes the most outside the lock chamber 11, the member 16 is moved from the second groove 22 and fitted into the third groove 23, so the actuation fitting 14 applies a predetermined torque. It is possible to provide the lock 6 with the sliding movement necessary for engagement with the lock shaft 8 by preventing the lock 6 from freely rotating until the lock is secured. That is, the second, third
The grooves 22 and 23 not only prevent the hanger 6 from freely rotating, but also provide the actuation fitting 14 with a predetermined torque necessary to overcome the frictional force, thereby increasing the length of the hanger 6 when the heat insulating plates 2 and 2 are connected. The first coupling device 7 is configured such that both the grooves can ensure that the suspension 6 and the actuating fitting 14 perform the necessary function to engage the suspension shaft 8 at a predetermined position. The operability can be improved, and the positions of the hanger 6 and the operating fitting 14 can be confirmed from the outside when the heat insulating plates are connected by the sound generated when the cover material 16 is fitted into both grooves. I can do it. In addition, first and second first and second blinds are provided in the actuating fitting 14, protruding clockwise and counterclockwise with the recess 17 as a boundary, and are provided with a screen on the inner circumferential surface 18a of the hole 18, and run on both the front and back sides of the hanger 6. The guides 14e and 14f of the suspender 6 are formed.
A guide groove 24 is formed on the counterclockwise side of the first groove 21 to guide the second guide 14f to the back side of the lock 6 when the actuating fitting 14 is engaged, so that the trajectory of the member 16 is not disturbed. The actuating fitting 14 can be fitted onto the lock 6 without having to do so, and the lock 6 can be prevented from swinging laterally due to rolling and rolling after the fitting.

Although the embodiment has been described based on the first coupling device 7 equipped with the locking pin 19, for example, the lock 6 is connected to the frame 10,
In a configuration in which the locking pin 19 is not provided in the first coupling device 7 and the locking catch 6 is not formed with the engagement recess 20, the structure is such that the locking pin 19 is not provided and the engagement recess 20 is not formed in the locking pin 6. Even if it is used, the same effects as in the above embodiment can be obtained.

As described above, the present invention temporarily irons a member into the first groove to easily position and temporarily fasten the actuating metal fitting to the suspension, thereby speeding up the assembly work of the hanging metal and the actuating metal fitting. It is easy to carry out, and the members are sequentially moved and competed in the second and third groove portions to sequentially apply the torque necessary to overcome the frictional force to the operating fitting, and to engage the suspension shaft with the suspension. By sequentially maintaining the required length, malfunctions can be prevented, and the position of the lock and operating metal fittings can be confirmed from the outside by the sound of the metal fitting when the saddle is fitted, allowing for smooth operation.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a prefabricated refrigerator equipped with the heat insulating plate coupling device of the present invention, Fig. 2 is a perspective view of the coupling device, Fig. 3 is a side view showing the coupling device in use, and Fig. 4 A, mouth, and C indicate the operating metal fittings, A is a side view, the mouth is a front view, and C is a perspective view.
Figure 5 shows the lock, A is a side view, the opening is a bottom view, Figures 6 to 8 are explanatory diagrams showing the operation of the lock and the operating fitting, and Figure 9 is a side view showing the first coupling device. Figure 10 is Figure 9
It is a 1X' sectional view. 6... Kakekin, 7... First coupling device, 8... Kaketo,
9... Second coupling device, 10, 10'... Frame body, 11... Key chamber, 14... Operating metal fitting, 16... Capital material, 17... Recessed portion, 18... Hole, 21, 22, 23. ...1st, 2nd, 3rd
Groove. Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10.

Claims (1)

[Scope of Claims] 1. A first coupling device with an opening on one side, and a second coupling device that is paired with the first coupling device and has an opening on one side, and the first coupling device is connected to the opening and the key. A frame body forming a chamber,
The actuating fitting is disposed within the lock chamber, is rotatably attached to the frame with a square hole as an eccentric axis, and has a peripheral wall formed with a concave portion provided with an outward pressing member, and the actuating fitting is fitted. The inner circumferential surface is constituted by a hole that is elastically pressed by the member, and a lock having a key portion formed at the tip, and the second
The coupling device includes a hanging shaft that engages with the key, and a first groove on the inner circumferential surface of the hole of the lock, into which the tip of the member is fitted when the actuation fitting is fitted into the hole. , a second groove into which the tip of the member is fitted when the key part and the square hole are separated the most in the lock chamber as the actuation fitting rotates; A heat insulating plate coupling device characterized in that a third groove portion is formed outside the lock chamber, which engages the member when the key portion rotates and comes into contact with the hanging shaft. 2. Forming first and second guides that protrude in the clockwise and counterclockwise directions with the recess as the boundary between the actuating metal fittings, are disposed astride the inner peripheral surface of the hole, and are in contact with both the front and back surfaces of the lock. At the same time, a guide groove is formed on the counterclockwise side of the first groove of the lock for guiding the second guide to the back side of the lock when the operating fitting is fitted. Insulation plate joining device.