Anti-fall parts and anti-fall structures

Abstract

To prevent a module from falling off when the module is removed from a retractable housing and to prevent the housing from being scratched. [Solution] A fall prevention part having a substantially rectangular plate-like shape that can be fixed to a module that can be inserted into and removed from a container is provided with a fixing portion formed so that it can be fixed to the inside of the module, a hook portion formed so that it can protrude outside the module through a first opening of the module and be hooked onto the container, and a protrusion portion provided between the fixing portion and the hook portion and formed so that it can protrude outside the module through a second opening of the module and contact the inner surface of the container, wherein the fall prevention part is elastic, the maximum height of the hook portion from the plate plane is lower than the maximum height of the protrusion portion from the plate plane, and the portion of the protrusion portion that contacts the inner surface of the container is smooth in shape.

Description

[Technical field]

[0001] The present disclosure relates to an anti-fall-off part and an anti-fall-off structure. [Background technology]

[0002] There are racks that can accommodate modules equipped with information processing devices, etc. For example, racks that comply with the JIS (Japanese Industrial Standards) and EIA (Electronic Industries Alliance) standards are often used to manage servers. In such racks, the modules can be removed from the rack by pulling them out to the front or back of the rack.

[0003] In such a rack into which modules can be inserted and removed, there is a possibility that the module may fall off the rack when it is removed from the rack. For this reason, the rack and the module may be provided with a fall prevention structure to prevent the module from falling off.

[0004] For example, Patent Document 1 describes a stopper made of an elastic plate material with a bent portion at its tip that is fixed to a unit drawer. With this technology, when the unit drawer is pulled out, the bent portion of the stopper abuts against the housing frame, thereby preventing the unit drawer from falling off. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 63-066941 Summary of the Invention [Problem to be solved by the invention]

[0006] However, with the stopper described in Patent Document 1, if the housing in which the module is mounted has a wall, the tip of the stopper may scrape against the inner wall, possibly scraping the inner wall. Also, if the housing is made of sheet metal, scraping the inner wall may produce metal powder. If metal powder is produced, it may fall on electronic components of an information processing device or the like, causing problems such as a short circuit.

[0007] In consideration of the above-mentioned problems, the object of the present disclosure is to provide an anti-fall-out part and an anti-fall-out structure that prevent a module from falling off when the module is removed from a housing into which the module can be inserted and removed, while preventing the housing from being scratched. [Means for solving the problem]

[0008] In one aspect of the present disclosure, the anti-fall-out component has a substantially rectangular plate-like shape and is fixable to a module that is insertable and removable from a container, the anti-fall-out component comprising: a fixing portion provided near one end of the longitudinal direction of the anti-fall-out component and formed so as to be fixed to the inside of the module; a hook portion provided near one end opposite the fixing portion and formed so as to protrude outside the module through a first opening of the module and be hooked onto the container; and a protrusion portion provided between the fixing portion and the hook portion and formed so as to protrude outside the module through a second opening of the module and contact an inner surface of the container, the anti-fall-out component being elastic, the maximum height of the hook portion from a plate plane that is a plane including the substantially rectangular plate-like portion of the anti-fall-out component is lower than the maximum height of the protrusion portion from the plate plane, and the portion of the protrusion portion that contacts the inner surface of the container has a smooth shape. Effect of the Invention

[0009] According to the present disclosure, it is possible to prevent a module from falling off when the module is removed from a removably inserted housing, while also preventing the housing from being scratched. [Brief description of the drawings]

[0010] [Figure 1] 11A and 11B are diagrams illustrating an example of the relationship between a container and a module. [Diagram 2] FIG. 13 is a diagram showing a state in which a part of the module 4 is pulled out from the housing. [Diagram 3] 1A and 1B are diagrams illustrating an example of a configuration of a container according to the present disclosure. [Figure 4] FIG. 2 is a diagram illustrating an example of a module configuration according to the present disclosure. [Diagram 5] FIG. 2 is a perspective view showing a configuration example of a fall-off prevention part according to the present disclosure. [Figure 6] 1 is a plan view showing an example of a configuration of a fall-off prevention component according to the present disclosure. FIG. [Figure 7] 1 is a view taken along an arrow A showing an example of a configuration of a fall-off prevention part according to the present disclosure. [Figure 8] 13A and 13B are diagrams showing a state in which the anti-fall-off part is fixed to the module. [Figure 9] 13A and 13B are diagrams showing the state of the fall-prevention component when the fall-prevention component is in the container; [Figure 10] 1A and 1B are diagrams illustrating an example of a configuration of a container according to the present disclosure. [Figure 11] 1A and 1B are perspective views illustrating an example of a housing and a module when the module is inserted into the housing. [Figure 12] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment component when the module is inserted into the container. [Figure 13] 1A and 1B are perspective views illustrating an example of a housing and a module when the module is inserted into the housing. [Figure 14] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment component when the module is inserted into the container. [Figure 15] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment component when the module is inserted into the container. [Figure 16] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment component when the module is inserted into the container. [Figure 17] 1 is a perspective view illustrating an example of a housing and a module when the module is being pulled out of the housing. FIG. [Figure 18] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment part when the module is pulled out from the housing. [Figure 19] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment part when the module is pulled out from the housing. [Figure 20] 1 is a perspective view illustrating an example of a housing and a module when the module is being pulled out of the housing. FIG. [Figure 21] 13A to 13C are diagrams illustrating an example of the operation of the anti-detachment part when the module is pulled out from the housing. [Figure 22] 13A and 13B are diagrams illustrating an example of a configuration of a falling-off prevention part that causes a container to be scraped. [Diagram 23] FIG. 13 is a diagram illustrating an example of the configuration of a container. [Figure 24] FIG. 2 is a diagram illustrating an example of a module configuration. [Diagram 25] FIG. 13 is a diagram showing a state in which a module is housed in a housing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] <Configuration example> An example of the configuration of the fall-off prevention component and fall-off prevention structure according to the present disclosure will be described.

[0012] First, an example of the relationship between the housing 3 and the module 4 will be described with reference to Fig. 1. Fig. 1 is a diagram showing an example of the relationship between the housing 3 and the module 4.

[0013] The housing 3 and the module 4 may have the fall-off prevention structure of the present disclosure applied thereto.

[0014] The housing 3 can house the module 4. The housing 3 can also be called a housing. The housing 3 can be mounted on a rack. Alternatively, the housing 3 can be integrated with the rack.

[0015] The module 4 can include, for example, an information processing device.

[0016] The rack is, for example, a 19-inch rack conforming to the EIA standard, but is not limited to this. In FIG. 1, a rack mount 1 and a rack mount 2 which are parts of the rack are shown.

[0017] 2 is a diagram showing a state in which a part of the module 4 is pulled out from the housing 3. In this manner, the module 4 is configured to be insertable into and removable from the housing 3.

[0018] Fig. 3 is a diagram showing a configuration example of the housing 3. The housing 3 includes a module housing section 3-1. In the example of Fig. 3, the housing 3 is configured to be able to house two modules 4, but the housing 3 may be configured to be able to house any number of modules 4, such as one or more than two. The module 4 can be inserted and removed from an opening of the module housing section 3-1 of the housing 3. The opening through which the module 4 passes when it is inserted and removed from the housing 3 may hereinafter be referred to as a housing opening.

[0019] A hook portion 3-3 is provided on the right side surface 3-2 of the module accommodating section 3-1 near the accommodation opening of the module accommodating section 3-1. The hook portion 3-3 is, for example, a groove. A hook portion 5-1, which will be described later, can be hooked on the hook portion 3-3. The hook portion 3-3 may be provided on the left side surface of the module accommodating section 3-1.

[0020] 4 is a diagram showing an example of the configuration of a module 4. For example, an information processing device can be mounted on the module 4. A fall-prevention part 5 can be fixed to an inner right side surface 4-1 of the module 4. When the latch part 3-3 of the housing 3 is provided on the left side surface of the module housing part 3-1, the fall-prevention part 5 is also fixed to the left side surface of the module 4. When the fall-prevention part 5 is fixed to the module 4, the fall-prevention part 5 and the latch part 3-3 form a fall-prevention structure for preventing the module 4 from falling off.

[0021] Next, a configuration example of the fall-prevention part 5 of the present disclosure will be described with reference to Fig. 5 to Fig. 7. Fig. 5 to Fig. 7 are diagrams showing a configuration example of the fall-prevention part 5. Fig. 5 is a perspective view showing a configuration example of the fall-prevention part 5. Fig. 6 is a plan view showing a configuration example of the fall-prevention part 5. Fig. 7 is a view of the fall-prevention part 5 as seen in the direction of arrow A in Fig. 6.

[0022] As shown in Fig. 5 and Fig. 6, the fall-off prevention part 5 has a substantially rectangular plate shape. The fall-off prevention part 5 has elasticity. The fall-off prevention part 5 is made of a metal material such as stainless steel. The fall-off prevention part 5 may be made of a material other than a metal material. The fall-off prevention part 5 may also be called a spring plate.

[0023] The fall-off prevention part 5 includes a fixing part 5-4, a hook part 5-1 and a protrusion part 5-3.

[0024] The fixing portion 5-4 is provided near one end in the longitudinal direction of the fall-prevention component 5. The fixing portion 5-4 is formed so as to be capable of being fixed to the inside of the module 4. The fixing portion 5-4 may be, for example, a hole for rivet fixing.

[0025] The hook portion 5-1 is provided near one end on the opposite side of the fixing portion 5-4. The hook portion 5-1 is formed so as to protrude to the outside of the module 4 through the first opening 4-2 of the module 4 and be hooked onto the housing 3.

[0026] The protrusion 5-3 is provided between the fixing portion 5-4 and the hook portion 5-1. The protrusion 5-3 is formed so as to be able to protrude to the outside of the module 4 through the second opening 4-3 of the module 4 and come into contact with the inner surface of the housing 3.

[0027] In addition, the portion of the protrusion 5-3 that comes into contact with the inner surface of the container 3 has a smooth shape. A smooth shape is a shape that is unlikely to scrape the inner surface of the container 3. An example of a smooth shape is a shape without corners.

[0028] The protrusion 5-3 may be formed on the base 5-2 formed by bending a member. For example, the protrusion 5-3 may be formed on the base 5-2 formed in a trapezoidal shape as shown in Fig. 5 and Fig. 7. The base 5-2 is not limited to a trapezoidal shape as long as it can bring the protrusion 5-3 into contact with the inner surface of the container 3 and can lead the fall-prevention component 5 to elastic deformation.

[0029] The protrusion 5-3 may be formed, for example, by embossing a member into a convex shape. The protrusion 5-3 is not limited to an embossed shape as long as the cut surface of the member of the fall-prevention component 5 does not come into contact with the inner surface of the container 3.

[0030] In addition, since the fall-off prevention component 5 is formed from a single member, the manufacturing costs can be reduced compared to when it is formed from two or more members.

[0031] 8 shows a state in which the fall-off prevention part 5 is fixed to the module 4. A side surface 4-1 of the module 4 is provided with a first opening 4-2 and a second opening 4-3.

[0032] The connecting portion 4-4 is a portion for fixing the fall-prevention part 5. For example, the connecting portion 4-4 is a hole formed in the side surface 4-1. For example, the fall-prevention part 5 is fixed to the module 4 by fastening the connecting portion 4-4 of the module 4 and the fixing portion 5-4 of the fall-prevention part 5 with a rivet.

[0033] When the fall-prevention component 5 is fixed to the module 4, the hook portion 5-1 can protrude from the first opening 4-2 to the outside of the module 4. The hook portion 5-1 is formed, for example, by bending a member. The protrusion portion 5-3 can protrude from the second opening 4-3 to the outside of the module 4.

[0034] 7, the hook portion 5-1 of the fall-off prevention part 5 is formed so that the maximum height 5a of the hook portion 5-1 from a plane including the substantially rectangular plate-shaped portion of the fall-off prevention part 5 (hereinafter also referred to as the plate plane) is lower than the maximum height 5b of the protrusion 5-3 from the plate plane. As a result, when the module 4 is pulled out of the container 3, the protrusion 5-3, not the hook portion 5-1, comes into contact with the container 3.

[0035] 9 shows the state of the fall-prevention part 5 when it is inside the housing 3. The fall-prevention part 5 is fixed to the side surface 4-1 of the module 4 by a fixing part 5-4. The fall-prevention part 5 elastically deforms, and the protrusion 5-3 protrudes from the second opening 4-3 and comes into contact with the side surface 3-2 of the housing 3.

[0036] The portion of the protrusion 5-3 that comes into contact with the inner surface of the housing 3 has a smooth shape. Therefore, when the module 4 is pulled out of the housing 3, it is possible to prevent the inner surface of the housing 3 from being scraped by the hook portion 5-1.

[0037] Fig. 10 shows an example of the configuration of the housing 3. Fig. 11 is a perspective view showing an example of the housing 3 and the module 4 when the module 4 is inserted into the housing 3. Fig. 12 is a diagram showing an example of the operation of the fall-off prevention part 5 when the module 4 is inserted into the housing 3. Fig. 12 is a view seen from the arrow B in Fig. 11.

[0038] A length 5c from one end of the hook portion 5-1 on the projection portion 5-3 side to the projection portion 5-3 or the base portion 5-2 is longer than a distance 3a from one end of the hanging portion 3-3 on the storage opening side of the container 3 to the storage opening. Also, a distance 3b from one end of the hanging portion 3-3 of the container 3 on the opposite side to the storage opening to the storage opening is longer than a length 5d from one end of the hook portion 5-1 of the fall-off prevention component 5 on the opposite side to the fixing portion 5-4 to one end of the projection portion 5-3 on the fixing portion 5-4 side.

[0039] 12, when the protrusion 5-3 is inside the container 3, the protrusion 5-3 comes into contact with the container 3 and the anti-fall-off part 5 is elastically deformed, so that the hook portion 5-1 does not come into contact with the container 3. When the protrusion 5-3 (or the base portion 5-2, if there is a base portion 5-2) is outside the container 3, the elastic deformation of the anti-fall-off part 5 is released and the hook portion 5-1 engages with the latch portion 3-3.

[0040] Furthermore, when the hook portion 3-3 is composed of two grooves, the width 5e of the protrusion 5-3 (or the base 5-2 if present) is preferably smaller than the groove spacing 3c of the hook portion 3-3. In this way, scratches caused by contact between the groove of the hook portion 3-3 and the protrusion 5-3 can be prevented. In this case, the hook portion 5-1 may be composed of two hook-shaped hooks. Also, the hook portion 5-1 may be composed of one or more hook-shaped hooks.

[0041] <Example of operation> Next, an example of the operation of the fall-prevention part 5 when the module 4 is inserted into the housing 3 will be described with reference to Fig. 13 to Fig. 16. Fig. 13 is a perspective view showing an example of the housing 3 and the module 4 when the module 4 is inserted into the housing 3. Figs. 14 to 16 are diagrams showing an example of the operation of the fall-prevention part 5 when the module 4 is inserted into the housing 3. Figs. 14 to 16 are views taken from the arrow C in Fig. 13.

[0042] 14, when the module 4 is inserted into the housing opening of the module housing section 3-1 and the hook portion 5-1 approaches the housing opening, the tip of the hook portion 5-1 in the direction in which the module 4 enters is pressured from the side surface 3-2 of the module housing section 3-1, causing elastic deformation of the drop-out prevention part 5. Then, the hook portion 5-1 is housed inside the module 4.

[0043] In FIG. 15, when the module 4 is further inserted into the module receiving portion 3-1, the hook portion 5-1 engages with the latch portion 3-3, and the elastic deformation of the fall-off prevention part 5 is released.

[0044] 16, when the module 4 is further inserted into the module housing portion 3-1, the protrusion 5-3 comes into contact with the side surface 3-2, causing the fall-prevention part 5 to again enter an elastically deformed state. Then, the hook portion 5-1 is stored inside the module 4.

[0045] When the module 4 is further inserted into the module accommodating section 3-1, the protrusion 5-3 passes between the two grooves of the latch section 3-3 while the fall-prevention part 5 remains in an elastically deformed state. Then, the module 4 is completely accommodated in the module accommodating section 3-1.

[0046] Next, an example of the operation of the fall-off prevention part 5 when the module 4 is pulled out from the housing 3 will be described with reference to Figs. 17 to 21. Fig. 17 is a perspective view showing an example of the housing 3 and the module 4 when the module 4 is pulled out from the housing 3. Figs. 18 and 19 are diagrams showing an example of the operation of the fall-off prevention part 5 when the module 4 is pulled out from the housing 3. Figs. 18 and 19 are views seen from the arrow C in Fig. 17. Fig. 20 is a perspective view showing an example of the housing 3 and the module 4 when the module 4 is further pulled out from the housing 3. Fig. 21 is a diagram showing an example of the operation of the fall-off prevention part 5 when the module 4 is pulled out from the housing 3 in Fig. 20. Fig. 21 is a diagram seen from the arrow C in Fig. 17.

[0047] When the module 4 is pulled out from the housing 3 as shown in Fig. 17, the protrusion 5-3 comes into contact with the side surface 3-2 of the housing 3 as shown in Fig. 18, so that the module 4 is pulled out with the hook portion 5-1 housed within the module 4. As the protrusion 5-3 (or the base portion 5-2, if present) comes out of the housing opening of the housing 3, the elastic deformation state of the fall-off prevention part 5 is released, and the hook portion 5-1 pops out of the first opening 4-2 of the module 4 and enters the groove of the hook portion 3-3. When the module 4 is pulled out further, the hook portion 5-1 engages with the hook portion 3-3 as shown in Fig. 19, and the operation of pulling out the module 4 is locked.

[0048] When the worker wants to pull the module 4 further out of the housing 3, the worker can push the protrusion 5-3 with the finger 6 toward the inside of the module 4 as shown in FIG. 20 to pull the module 4 further out of the housing 3. The worker presses the protrusion 5-3 with the finger 6 while holding both sides of the module 4, being careful not to drop the module 4. When the protrusion 5-3 is pushed, the protrusion 5-3 is stored inside the module 4 as shown in FIG. 21. When the protrusion 5-3 is stored inside the module 4, the drop-out prevention part 5 elastically deforms, and the hook portion 5-1 is also stored inside the module 4. Then, the engagement between the hook portion 5-1 and the latch portion 3-3 is released, and the module 4 can be pulled out further.

[0049] <Effects> As described above, the fall-prevention component 5 of the present disclosure can be fixed to the module 4 that can be inserted into and removed from the housing 3. The fall-prevention component 5 has a substantially rectangular plate shape. The fall-prevention component 5 has elasticity. The fall-prevention component 5 includes a fixing portion 5-4, a hook portion 5-1, and a protrusion portion 5-3. The fixing portion 5-4 is provided near one end of the fall-prevention component in the longitudinal direction. The fixing portion 5-4 is formed so as to be able to be fixed to the inside of the module 4. The hook portion 5-1 is provided near one end on the opposite side of the fixing portion 5-4. The hook portion 5-1 is formed so as to protrude to the outside of the module 4 through the first opening 4-2 of the module 4 and be hooked to the housing 3. The protrusion portion 5-3 is provided between the fixing portion 5-4 and the hook portion 5-1. Furthermore, the protrusion 5-3 is formed so as to be able to protrude outward from the module 4 through the second opening 4-3 of the module 4 and contact the inner surface of the housing 3. The maximum height of the hook portion 5-1 from a plate plane that is a plane including the substantially rectangular plate-shaped portion of the fall-off prevention component 5 is lower than the maximum height of the protrusion 5-3 from the plate plane. Furthermore, the portion of the protrusion 5-3 that contacts the inner surface of the housing 3 has a smooth shape.

[0050] As a result, when the module 4 is pulled out from the housing 3, if the protrusion 5-3 is inside the housing 3, the protrusion 5-3, not the hook portion 5-1, contacts the housing 3. In addition, the smooth-shaped portion of the protrusion 5-3 contacts the inner surface of the housing 3, so that the housing 3 can be prevented from being scraped. In addition, when the module 4 is pulled out from the housing 3, if the protrusion 5-3 goes outside the housing 3, the hook portion 5-1 engages with the latch portion 3-3 provided on the housing 3, so that the module 4 can be prevented from falling off. Therefore, it is possible to prevent the housing from being scraped while preventing the module from falling off when the module is removed from a housing into which the module can be inserted and removed.

[0051] The effects of the present disclosure will be described by taking as an example a fall-off prevention structure in which the housing is scraped. Figs. 22 to 25 show examples of fall-off prevention structures in which the housing is scraped. Fig. 22 is a diagram showing an example of the configuration of fall-off prevention part A. Fig. 23 is a diagram showing an example of the configuration of housing C. Fig. 24 is a diagram showing an example of the configuration of module B. Fig. 25 is a diagram showing a state in which module B is stored in housing C provided in rack D.

[0052] The fall-prevention part A shown in FIG. 22 is fixed to the inside of the module B as shown in FIG. 24 and FIG. 25. The fall-prevention part A has an arrowhead-shaped hook a in the center of a leaf spring member formed of stainless steel sheet metal or the like. The fall-prevention part A prevents the module B from falling off by engaging the hook a with a groove e provided in the inner wall d of the container C. The fall-prevention part A also has a fixed end b that is fixed to the module B with a rivet or the like, and a flat part c that can be pressed by an operator on the opposite side to the fixed end b. When the operator presses the flat part c while firmly holding the module B to prevent it from dropping, the hook a is unlocked and the module B can be removed.

[0053] In this fall-prevention part A, there is a possibility that the tip of the hook a will scrape against the inner wall d made of sheet metal, causing the metal to be scraped off. Also, if the hook a is made of a resin member, the number of parts will increase due to the leaf spring member and the resin member, which creates a cost problem.

[0054] The fall-prevention part 5 of the present disclosure has the above-mentioned structure, and can prevent scraping of the inner wall of the housing 3. In addition, the fall-prevention part 5 can be formed from a single member, which is advantageous in terms of cost.

[0055] <Additional Notes> A part or all of the above-described embodiments can be described as, but is not limited to, the following supplementary notes.

[0056] (Appendix 1) A drop-out prevention component having a substantially rectangular plate shape that can be fixed to a module that can be inserted into and removed from a housing, a fixing portion provided near one end of the fall-off prevention component in a longitudinal direction and configured to be fixed to the inside of the module; a hook portion provided near one end of the fixing portion on the opposite side, the hook portion being formed to protrude outside the module through a first opening of the module so as to be hooked onto the housing; a protrusion provided between the fixing portion and the hook portion and formed to be capable of protruding to the outside of the module through a second opening of the module and contacting an inner surface of the housing; Equipped with The fall-off prevention part has elasticity, a maximum height of the hook portion from a plate plane that is a plane including a substantially rectangular plate-shaped portion of the fall-off prevention component is lower than a maximum height of the protrusion portion from the plate plane; The protrusion has a smooth shape at a portion that contacts the inner surface of the container. Anti-fall parts.

[0057] (Appendix 2) The protrusion is formed by processing a member into a convex shape. The anti-fall-off part described in Appendix 1.

[0058] (Appendix 3) It is made from a single piece of material, A part for preventing falling off as described in Appendix 1 or Appendix 2.

[0059] (Appendix 4) Formed from a metal material, A part for preventing falling off described in any one of Appendix 1 to Appendix 3.

[0060] (Appendix 5) The hook portion is formed by bending a member. A part for preventing falling off described in any one of appendix 1 to appendix 4.

[0061] (Appendix 6) The protrusion is formed on a base portion formed by bending a member. A part for preventing falling off described in any one of appendix 1 to appendix 5.

[0062] (Appendix 7) The hook portion is formed by two hooks. A part for preventing falling off described in any one of Supplementary Note 1 to Supplementary Note 6.

[0063] (Appendix 8) the protrusion and the hook are formed such that, when the module is pulled out of the housing until the protrusion is outside the housing, the hook protrudes from the first opening. A part for preventing falling off described in any one of appendix 1 to appendix 7.

[0064] (Appendix 9) the protrusion contacts the housing when the protrusion is inside the housing; A part for preventing falling off described in any one of appendix 1 to appendix 8.

[0065] (Appendix 10) A fall prevention part according to any one of Supplementary Note 1 to Supplementary Note 9, a hook portion provided on the container and capable of hooking the hook portion; A structure that prevents the device from falling off.

[0066] Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-mentioned embodiments. Various modifications that can be understood by a person skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. Furthermore, each embodiment can be appropriately combined with other embodiments. [Explanation of symbols]

[0067] 1, 2 Rack Mount 3. Containment Unit 3-1 Module housing section 3-2 Side 3-3 Latch part 4 Modules 4-1 Side 4-2 First opening 4-3 Second Opening 4-4 Joint part 5 Anti-fall parts 5-1 Hook part 5-2 Base 5-3 Protrusion 5-4 Fixed part

Claims

1. A drop-out prevention component having a substantially rectangular plate shape that can be fixed to a module that can be inserted into and removed from a housing, a fixing portion provided near one end of the fall-off prevention component in a longitudinal direction and configured to be fixed to the inside of the module; a hook portion provided near one end of the fixing portion on the opposite side, the hook portion being formed to protrude outside the module through a first opening of the module so as to be hooked onto the housing; a protrusion provided between the fixing portion and the hook portion and formed to be capable of protruding to the outside of the module through a second opening of the module and contacting an inner surface of the housing; Equipped with The fall-off prevention part has elasticity, a maximum height of the hook portion from a plate plane that is a plane including a substantially rectangular plate-shaped portion of the fall-off prevention component is lower than a maximum height of the protrusion portion from the plate plane; The protrusion has a smooth shape at a portion that contacts the inner surface of the container. Anti-fall parts.

2. The protrusion is formed by processing a member into a convex shape. The fall-off prevention part according to claim 1.

3. It is made from a single piece of material, The fall-off prevention part according to claim 1.

4. Formed from a metal material, The fall-off prevention part according to claim 1.

5. The hook portion is formed by bending a member. The fall-off prevention part according to claim 1.

6. The protrusion is formed on a base portion formed by bending a member. The fall-off prevention part according to claim 1.

7. The hook portion is formed by two hooks. The fall-off prevention part according to claim 1.

8. the protrusion and the hook are formed such that, when the module is pulled out of the housing until the protrusion is outside the housing, the hook protrudes from the first opening. The fall-off prevention part according to claim 1.

9. the protrusion contacts the housing when the protrusion is inside the housing; The fall-off prevention part according to claim 1.

10. The fall-off prevention part according to claim 1 , a hook portion provided on the container and capable of hooking the hook portion; A structure that prevents the device from falling off.

Images