JP3821533B2 - Enclosure door locking mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door locking mechanism for a housing, and more particularly to a door locking mechanism suitable for use in a door locking mechanism of a vending machine.
[0002]
[Prior art]
In various housings having a door, for example, a vending machine, a mechanism for holding the door in an open state is often provided. For example, as shown in FIG. 3, a door 102 is connected to the vending machine main body 101 so as to be openable and closable, and one end of a shaft 103 is rotatably supported by the door 102. On the vending machine main body 101, for example, on the bottom wall 104, a metal fitting 106 having grooves 105 formed at a plurality of positions is attached, and the other end of the shaft 103 is locked in one of the grooves 105. Thus, the opening of the door 102 corresponding to the position of the groove 105 can be held.
[0003]
For example, as shown in FIG. 4, the metal fitting 106 is attached to a protective plate 107 on the upper surface of the bottom wall 104. As shown in FIG. 4, the protective plate 107 functions as a receiving surface that receives the tip of the end of the shaft 103 inserted into the metal fitting 106, and may occur when the tip directly hits the upper surface of the bottom wall 104. The bottom wall 104 is prevented from being peeled off and the bottom wall 104 is not damaged.
[0004]
In addition, the metal fitting 106 is usually attached to a portion of the bottom wall 104 that is relatively close to the entrance. At the back of this portion, as shown in FIG. 3, an electrical component box 108, a drain pan, and other various parts. Is often provided.
[0005]
[Problems to be solved by the invention]
However, in the conventional mechanism as described above, since the metal fitting 106 protrudes on the upper surface of the bottom wall 104, the metal fitting 106 is used when pulling them out for maintenance of the electrical component box 108 or the drain pan. There is a problem that the maintenance is poor.
[0006]
Further, as shown in FIG. 4, since the locking mechanism portion is composed of two parts, that is, the metal fitting 106 and the protective plate 107, there is a problem that the assembly workability is inferior due to the large number of parts.
[0007]
The object of the present invention is to pay attention to such problems, and improve the maintainability of various internal parts, and reduce the number of parts to reduce the assembly workability and further reduce the cost. It is in providing the door latching mechanism of housings, such as a machine.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a door locking mechanism for a housing of the present invention includes a housing body, a door connected to the housing body so as to be openable and closable, and is connected to the door and extends toward the housing body. a shaft, attached to the housing body, the door locking structure of a housing and a bracket having grooves for locking the housing body side end portion of the shaft in a plurality of positions, said bracket section co Forming the groove on one leg of the U-shape, and forming the other leg on the receiving surface at the end of the end of the shaft locked in the groove; and The other leg portion is embedded in the wall of the housing body so as not to protrude substantially on the wall surface of the housing body.
[0010]
Such a door locking mechanism can be suitably applied to a vending machine, and the metal fitting is attached to the bottom wall portion of the vending machine main body, for example.
[0011]
In such a door locking mechanism of the housing according to the present invention, the other leg of the metal fitting is embedded in the wall of the housing main body so that the metal fitting does not substantially protrude on the wall surface of the housing main body. Because it is configured, even when various parts are housed in the inner part of the bracket mounting part, it is possible to easily pull out the various parts without interfering with the bracket, and maintenance of these parts is facilitated. Is done.
[0012]
In addition, if the metal fitting is configured as a U-shaped member, the locking mechanism portion that has conventionally been constituted by two parts of the metal fitting and the protective plate can be constituted by a single part of the U-shaped metal fitting. That is, a locking groove can be provided on one of the U-shaped leg portions, and the same function as that of a conventional protective plate can be provided on the other leg portion, and both functions can be satisfied by a single component. Therefore, the number of parts in this portion is one, and the number of parts can be reduced, so that the assembly workability can be improved and the cost can be reduced.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a door locking mechanism of a housing according to an embodiment of the present invention, and particularly shows a case where the present invention is applied to a vending machine. In FIG. 1, reference numeral 1 denotes a vending machine body as a housing body, particularly an outer box of the vending machine. A door 2 (outer door) is connected to the vending machine main body 1 so as to be freely opened and closed. A shaft 4 in which both end portions 4a and 4b are bent in a bowl shape extends over the upper surface side of the bottom wall 3 of the vending machine body 1 and the inner surface side of the door 2. One end 4 a of the shaft 4 is rotatably supported by the door 2, and the other end 4 b is inserted into the opening 6 of the metal fitting 5 attached to the bottom wall 3.
[0014]
As shown in FIG. 2, the metal fitting 5 is formed as a member having a U-shaped cross section, and the opening 6 is formed in one of the U-shaped leg portions (upper leg portions) 5 a. As shown in FIG. 1, the opening 6 includes a guide portion 6 a that guides the end portion 4 a of the shaft 4, and a groove 6 b that is formed at a plurality of positions and locks the end portion 4 b of the shaft 4. Yes. When the end portion 4b of the shaft 4 is locked in each groove 6b, the opening degree of the door 2 is held stepwise corresponding to the locking position.
[0015]
As shown in FIG. 2, the other leg portion 5b of the metal fitting 5 extends into the bottom wall 3 so that the upper surface thereof can be opposed to at least the guide portion 6a of the opening 6 and each groove 6b. . That is, the upper surface of the leg 5b functions as a surface that receives the tip of the end 4b of the shaft 4 inserted into the opening 6, and the surface itself is configured as a surface that may be damaged. The metal fitting 5 has its legs 5a directly fixed to the upper surface of the bottom wall 3 by means of joining means 7 such as screws or rivets. Therefore, the metal fitting 5 has a structure that does not substantially protrude above the bottom wall 3, and in this embodiment, the metal fitting 5 is positioned on the upper surface of the bottom wall 3 by the thickness of the leg 5 a slightly. . That is, most of the metal fitting 5 is embedded in the bottom wall 3.
[0016]
As shown in FIG. 1, components such as an electrical component box 8 and a drain pan (not shown) are arranged on the back side of the metal fitting 5 mounting portion of the vending machine main body 1.
[0017]
In the door locking mechanism configured as described above, when the end portion 4b of the shaft 4 is inserted into the guide portion 6a of the opening 6 of the metal fitting 5 and the door 2 is opened to the degree of opening, the end of the shaft 4 is The portion 4b enters the groove 6b at a position corresponding to the opening, and is locked in the groove 6b, so that the door 2 is held at the opening. At this time, the tip (lower end) of the end portion 4b of the shaft 4 is received by the lower leg portion 5b of the metal fitting 5 and comes into sliding contact with the upper surface thereof. Since the end 4b of the shaft 4 does not contact the bottom wall 3, the bottom wall 3 is not damaged. Therefore, the leg part 5b of the metal fitting 5 fulfills the same function as a conventional protective plate.
[0018]
Since the metal fitting 5 does not substantially protrude from the upper surface side of the bottom wall 3, these components may interfere with the metal fitting 5 when pulling out the electrical component box 8, the drain pan, or the like disposed in the back of the metal fitting 5. It is easily pulled out without being caught by the metal fitting 5. Therefore, maintenance of these parts can be performed very easily.
[0019]
Further, as described above, the metal fitting 5 itself fulfills both functions of locking the shaft end 4b and protecting the bottom wall 3 by receiving the tip of the shaft end 4b. Both of the functions of the two parts of the conventional metal fitting and the protective plate can be satisfied. Therefore, the conventional two-part configuration can be made into a single part, and the number of parts can be reduced to improve the assembly workability and reduce the cost.
[0020]
Although the above embodiment has been described for a vending machine, the present invention can be applied without limiting the field as long as it has a similar door locking mechanism of a housing.
[0021]
【The invention's effect】
As described above, according to the door locking mechanism of the housing of the present invention, the door locking metal fitting is configured so as not to substantially protrude on the wall surface of the housing main body. Various components and various devices arranged in the section can be easily pulled out, and their maintainability can be greatly improved.
[0022]
Also, if the bracket is composed of a U-shaped cross-section member and one leg is embedded in the housing body wall, both the locking function of the shaft and the protection function of the body wall can be achieved with a single bracket. Can be satisfied, and the number of parts can be reduced to improve the mounting workability of the metal fitting and reduce the cost.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a housing door locking mechanism according to an embodiment of the present invention.
2 is an enlarged vertical cross-sectional view of a bracket mounting portion of the mechanism shown in FIG.
FIG. 3 is a schematic perspective view of a conventional housing door locking mechanism.
4 is an enlarged longitudinal sectional view of a bracket mounting portion of the mechanism of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vending machine main body as a housing | casing body 2 Door 3 Bottom wall 4 Shaft 4a, 4b End 5 of shaft 5 Metal fitting 5a, 5b U-shaped leg part 6 Opening 6a Guide part 6b Groove 7 for engagement 7 Joining means 8 Electrical component box

Claims (3)

A housing main body, a door connected to the housing main body so as to be openable and closable, a shaft connected to the door and extending toward the housing main body, and attached to the housing main body. In a door locking structure of a housing having metal fittings in which grooves to be locked are formed at a plurality of positions, the metal fittings are formed in a U-shaped cross section, and the grooves are formed in one leg portion of the U-shaped. And the other leg is configured as a receiving surface at the tip of the end of the shaft that is locked in the groove, and the other leg is embedded in the wall of the housing main body to substantially A door locking structure for a housing, wherein the housing is configured not to protrude on the wall surface of the housing body. 2. The housing locking structure according to claim 1, wherein the housing is a vending machine. The door locking structure of the housing according to claim 2, wherein the mounting portion of the metal fitting is a bottom wall portion of the vending machine main body.

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