Fall-off prevention component and fall prevention structure

Abstract

To prevent a module from falling off when the module is removed from the removably inserted module housing, and also to prevent the housing from being scratched.SOLUTION: There is provided a fall-off 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, including: a fixing portion formed so as to be fixed to the inside of the module; a hook portion formed so as to protrude to the outside of the module through the first opening of the module and to be hooked onto the housing; and a protrusion provided between the fixing portion and the hook portion and formed so as to protrude to the outside of the module through the second opening of the module and to come into contact with the inner surface of the housing; wherein the fall-off prevention component has elasticity, the maximum height of the hook portion from the plate plane is lower than the maximum height of the protrusion from the plate plane, and the portion of the protrusion that comes into contact with the inner surface of the container has a smooth shape.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a detachment prevention component and a detachment prevention structure.

Background Art

[0002] There is a rack capable of mounting a module on which an information processing device or the like is mounted. For example, for server management, racks conforming to JIS (Japanese Industrial Standards) or EIA (Electronic Industries Alliance) standards are often used. In such a rack, the module can be removed from the rack by pulling it out from the front or back of the rack.

[0003] In such a rack in which the module can be inserted and removed, when the module is removed from the rack, the module may fall off the rack. Therefore, a detachment prevention structure for preventing the module from falling off may be provided in the rack and the module.

[0004] For example, Patent Document 1 describes that a stopper made of an elastic plate material and having a bent portion at the tip is fixed to the unit drawer. In this technique, when the unit drawer is pulled out, the bent portion of the stopper abuts against the housing frame to prevent the unit drawer from falling off.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the stopper described in Patent Document 1, when there is a wall surface in the housing on which the module is mounted, the tip of the stopper may rub against the inner wall, causing the inner wall to be scraped. Further, if the housing is made of sheet metal, scraping of the inner wall may generate metal powder. When metal powder is generated, the metal powder may fall on electronic components such as an information processing device and cause problems such as a short circuit.

[0007] In view of the above problems, an object of the present disclosure is to provide a dropout prevention component and a dropout prevention structure that can prevent the dropout of a module when the module is removed from a housing into which the module can be inserted and removed, and can prevent the housing from being scraped.

Means for Solving the Problems

[0008] In one aspect of the present disclosure, the dropout prevention component is a substantially rectangular plate-shaped dropout prevention component that can be fixed to a module that can be inserted into and removed from a housing. A fixing portion provided near one end in the longitudinal direction of the dropout prevention component and formed so as to be fixable inside the module; a hook portion provided near the other end on the opposite side of the fixing portion and protruding outside the module through a first opening of the module and formed so as to be hooked on the housing; and a protrusion portion provided between the fixing portion and the hook portion and protruding outside the module through a second opening of the module and formed so as to be in contact with the inner surface of the housing. The dropout prevention component has elasticity, and the maximum height of the hook portion from a plate plane, which is a plane including the substantially rectangular plate-shaped portion of the dropout prevention component, is lower than the maximum height of the protrusion portion from the plate plane, and among the protrusion portions, the portion in contact with the inner surface of the housing has a smooth shape.

Effects of the Invention

[0009] According to the present disclosure, it is possible to prevent the dropout of the module when the module is removed from the housing into which the module can be inserted and removed, and to prevent the housing from being scraped.

Brief Description of the Drawings

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DETAILED DESCRIPTION OF THE INVENTION

[0011] <Configuration Example> A configuration example of the detachment prevention component and the detachment prevention structure of 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 detachment prevention structure of the present disclosure can be applied to the housing 3 and the module 4.

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

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

[0016] The rack is, for example, a 19-inch rack compliant with the EIA standard, but is not limited to this. Figure 1 shows rack mounts 1 and 2 which are part of the rack.

[0017] Figure 2 is a diagram showing a state where a part of module 4 is pulled out from receptacle 3. Thus, module 4 is configured to be insertable and removable with respect to receptacle 3.

[0018] Figure 3 is a diagram showing a configuration example of receptacle 3. Receptacle 3 includes a module accommodation part 3-1. In the example of Figure 3, receptacle 3 is configured to be able to accommodate two modules 4, but receptacle 3 may be configured to be able to accommodate one or a plurality of any number of modules 4. Module 4 can be inserted and removed through the opening of module accommodation part 3-1 of receptacle 3. The opening through which module 4 passes when being inserted and removed with respect to receptacle 3 may hereinafter be referred to as the accommodation opening.

[0019] On the right side surface 3-2 of module accommodation part 3-1, a latching part 3-3 is provided in the vicinity of the accommodation opening of module accommodation part 3-1. The latching part 3-3 is, for example, a groove. The latching part 3-3 can latch a hook part 5-1 described later. Note that the latching part 3-3 may be provided on the left side surface of module accommodation part 3-1.

[0020] Figure 4 is a diagram showing a configuration example of module 4. Module 4 can, for example, mount an information processing device. An anti-drop component 5 can be fixed to the inner right side surface 4-1 of module 4. When the latching part 3-3 of receptacle 3 is provided on the left side surface of module accommodation part 3-1, the anti-drop component 5 is also fixed to the left side surface of module 4. By fixing the anti-drop component 5 to module 4, the anti-drop component 5 and the latching part 3-3 constitute an anti-drop structure for preventing the drop of module 4.

[0021] Next, with reference to FIGS. 5 to 7, a configuration example of the anti-drop component 5 of the present disclosure will be described. FIGS. 5 to 7 are diagrams showing a configuration example of the anti-drop component 5. FIG. 5 is a perspective view showing a configuration example of the anti-drop component 5. Further, FIG. 6 is a plan view showing a configuration example of the anti-drop component 5. Further, FIG. 7 is a view of the anti-drop component 5 as viewed in the direction of arrow A in FIG. 6.

[0022] As shown in FIGS. 5 and 6, the anti-drop component 5 has a substantially rectangular plate-like shape. Further, the anti-drop component 5 has elasticity. The anti-drop component 5 is formed of a metal material such as stainless steel, for example. Note that the anti-drop component 5 may be formed of a material other than the metal material. The anti-drop component 5 can also be called a spring plate.

[0023] The anti-drop component 5 includes a fixing portion 5-4, a hook portion 5-1, and a protrusion portion 5-3.

[0024] The fixing portion 5-4 is provided near one end in the longitudinal direction of the anti-drop component 5. Further, the fixing portion 5-4 is formed so as to be fixable inside 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 the other end on the opposite side of the fixing portion 5-4. Further, the hook portion 5-1 is formed so as to protrude outside the module 4 through the first opening 4-2 of the module 4 and be hooked on the housing 3.

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

[0027] Note that, among the protrusion portions 5-3, the portion that contacts the inner surface of the housing 3 has a smooth shape. A smooth shape is a shape that has a low possibility of scraping the inner surface of the housing 3. A smooth shape is, for example, a shape without corners.

[0028] The protruding portion 5-3 may be formed on the base portion 5-2 formed by bending a member. For example, as shown in FIGS. 5 and 7, the protruding portion 5-3 may be formed on the trapezoidal base portion 5-2. The base portion 5-2 is not limited to a trapezoidal shape as long as it can bring the protruding portion 5-3 into contact with the inner surface of the housing 3 and can guide the anti-drop component 5 to elastically deform.

[0029] Further, the protruding portion 5-3 may be formed, for example, by embossing the member into a convex shape. Further, the protruding portion 5-3 is not limited to an embossed shape as long as it does not bring the cut surface of the member of the anti-drop component 5 into contact with the inner surface of the housing 3.

[0030] Note that the anti-drop component 5 can reduce the manufacturing cost by being formed from a single member as compared with the case of being formed from two or more members.

[0031] FIG. 8 shows a state where the anti-drop component 5 is fixed to the module 4. A first opening 4-2 and a second opening 4-3 are formed in the side surface 4-1 of the module 4.

[0032] Further, the coupling portion 4-4 is a portion for fixing the anti-drop component 5. For example, the coupling portion 4-4 is a hole formed in the side surface 4-1. For example, the anti-drop component 5 is fixed to the module 4 by riveting the coupling portion 4-4 of the module 4 and the fixing portion 5-4 of the anti-drop component 5.

[0033] In a state where the anti-drop component 5 is fixed to the module 4, the hook portion 5-1 can protrude outside the module 4 from the first opening 4-2. Note that the hook portion 5-1 is formed, for example, by bending a member. Further, the protruding portion 5-3 can protrude outside the module 4 from the second opening 4-3.

[0034] As shown in Fig. 7, the hook portion 5-1 of the anti-drop component 5 is formed such that the maximum height 5a of the hook portion 5-1 from the plane (hereinafter also referred to as the plate plane) including the substantially rectangular plate-like portion of the anti-drop component 5 is lower than the maximum height 5b of the protrusion 5-3 from the plate plane. Thereby, when the module 4 is pulled out from the housing 3, it is the protrusion 5-3 that contacts the housing 3 instead of the hook portion 5-1.

[0035] Fig. 9 shows the state of the anti-drop component 5 when it is inside the housing 3. The anti-drop component 5 is fixed to the side surface 4-1 of the module 4 by the fixing portion 5-4. The anti-drop component 5 is elastically deformed, and the protrusion 5-3 protrudes from the second opening 4-3 and contacts the side surface 3-2 of the housing 3.

[0036] The portion of the protrusion 5-3 that contacts the inner surface of the housing 3 has a smooth shape. Therefore, when the module 4 is pulled out from 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 a configuration example 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 view showing an example of the operation of the anti-drop component 5 when the module 4 is inserted into the housing 3. Fig. 12 is a view taken in the direction of arrow B in Fig. 11.

[0038] The length 5c from one end of the hook portion 5-1 on the side of the protrusion 5-3 to the protrusion 5-3 or the base portion 5-2 is longer than the distance 3a from one end on the accommodation port side of the latching portion 3-3 of the housing 3 to the accommodation port. Also, the distance 3b from one end of the latching portion 3-3 of the housing 3 on the side opposite to the accommodation port to the accommodation port is longer than the length 5d from one end on the side opposite to the fixing portion 5-4 of the hook portion 5-1 of the anti-drop component 5 to one end on the side of the fixing portion 5-4 of the protrusion 5-3.

[0039] As a result, as shown in FIG. 12, when the protrusion 5-3 is inside the housing 3, the protrusion 5-3 contacts the housing 3 and the anti-drop component 5 elastically deforms, so that the hook portion 5-1 does not contact the housing 3. Further, when the protrusion 5-3 (or the base portion 5-2 if there is a base portion 5-2) is outside the housing 3, the elastic deformation of the anti-drop component 5 is released, and the hook portion 5-1 fits into the latching portion 3-3.

[0040] Further, the width 5e of the protrusion 5-3 (or the base portion 5-2 if there is a base portion 5-2) is preferably formed smaller than the groove interval dimension 3c of the latching portion 3-3 when the latching portion 3-3 is composed of two grooves. In this way, it is possible to prevent scratches caused by contact between the groove of the latching portion 3-3 and the protrusion 5-3. In this case, the hook portion 5-1 may be composed of two hook-shaped hooks. Further, the hook portion 5-1 may be composed of one or two or more hook-shaped hooks.

[0041] <Operation Example> Next, with reference to FIGS. 13 to 16, an example of the operation of the anti-drop component 5 when the module 4 is inserted into the housing 3 will be described. 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 views showing an example of the operation of the anti-drop component 5 when the module 4 is inserted into the housing 3. FIGS. 14 to 16 are views taken in the direction of arrow C in FIG. 13.

[0042] In FIG. 14, when the module 4 is inserted into the housing opening of the module housing portion 3-1 and the hook portion 5-1 approaches the housing opening, the tip of the hook portion 5-1 in the insertion direction of the module 4 receives pressure from the side surface 3-2 of the module housing portion 3-1, and the anti-drop component 5 elastically deforms. Then, the hook portion 5-1 is stored inside the module 4.

[0043] In FIG. 15, when the module 4 is further inserted into the module housing portion 3-1, the hook portion 5-1 fits into the latching portion 3-3, and the elastically deformed state of the anti-drop component 5 is released.

[0044] In FIG. 16, when the module 4 is further inserted into the module housing portion 3-1, the protrusion 5-3 contacts the side surface 3-2, causing the anti-drop component 5 to return to the elastically deformed state again. Then, the hook portion 5-1 is housed inside the module 4.

[0045] When the module 4 is further inserted into the module housing portion 3-1, with the anti-drop component 5 remaining in the elastically deformed state, the protrusion 5-3 passes between the two grooves of the latching portion 3-3. Then, the module 4 is completely housed in the module housing portion 3-1.

[0046] Next, with reference to FIGS. 17 to 21, an example of the operation of the anti-drop component 5 when the module 4 is pulled out from the housing 3 will be described. 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 views showing an example of the operation of the anti-drop component 5 when the module 4 is pulled out from the housing 3. FIGS. 18 and 19 are views taken along 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 view showing an example of the operation of the anti-drop component 5 when the module 4 is pulled out from the housing 3 in FIG. 20. FIG. 21 is a view taken along the arrow C in FIG. 17.

[0047] When the module 4 is pulled out from the housing 3 as shown in FIG. 17, as shown in FIG. 18, since the protrusion 5-3 is in contact with the side surface 3-2 of the housing 3, the module 4 is pulled out while the hook portion 5-1 is housed inside the module 4. As the protrusion 5-3 (the base portion 5-2 if there is a base portion 5-2) exits from the housing opening of the housing 3, when the elastic deformation state of the anti-drop component 5 is released, the hook portion 5-1 pops out from the first opening 4-2 of the module 4 and enters the groove of the latching portion 3-3. When the module 4 is further pulled out, as shown in FIG. 19, the hook portion 5-1 fits into the latching portion 3-3, locking the operation of pulling out the module 4.

[0048] When the operator wants to further pull out the module 4 from the housing 3, as shown in Fig. 20, by pushing the protrusion 5-3 into the module 4 with the finger 6, the module 4 can be further pulled out from the housing 3. While holding both sides of the module 4 with attention to the fall of the module 4, the operator pushes the protrusion 5-3 with the finger 6. When the protrusion 5-3 is pushed, as shown in Fig. 21, the protrusion 5-3 is housed inside the module 4. When the protrusion 5-3 is housed inside the module 4, the anti-drop component 5 elastically deforms, and the hook portion 5-1 is also housed inside the module 4. Then, the engagement between the hook portion 5-1 and the latching portion 3-3 is released, and the module 4 can be further pulled out.

[0049] <Effect> As described above, the anti-drop component 5 of the present disclosure can be fixed to the module 4 that can be inserted into and removed from the housing 3. Further, the anti-drop component 5 has a substantially rectangular plate shape. Further, the anti-drop component 5 has elasticity. The anti-drop component 5 includes a fixing portion 5-4, a hook portion 5-1, and a protrusion 5-3. The fixing portion 5-4 is provided near one end in the longitudinal direction of the anti-drop component. Further, the fixing portion 5-4 is formed so as to be fixable inside the module 4. The hook portion 5-1 is provided near one end on the opposite side of the fixing portion 5-4. Further, the hook portion 5-1 is formed so as to protrude outside the module 4 through the first opening 4-2 of the module 4 and be latched to the housing 3. The protrusion 5-3 is provided between the fixing portion 5-4 and the hook portion 5-1. Further, the protrusion 5-3 is formed so as to protrude outside 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 the plate plane, which is a plane including the substantially rectangular plate-shaped portion of the anti-drop component 5, is lower than the maximum height of the protrusion 5-3 from the plate plane. Further, among the protrusions 5-3, the portion 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, it is the protrusion 5-3 that contacts the housing 3 instead of the hook portion 5-1. Also, since the smooth-shaped portion of the protrusion 5-3 contacts the inner surface of the housing 3, it is possible to prevent the housing 3 from being scraped. Further, when the module 4 is pulled out from the housing 3, if the protrusion 5-3 comes out of the housing 3, the hook portion 5-1 engages with the latching portion 3-3 provided on the housing 3, and it is possible to prevent the module 4 from falling off. Therefore, it becomes possible to prevent the housing from being scraped while preventing the module from falling off when the module is removed from the housing in which the module can be inserted and removed.

[0051] Regarding the effect of the present disclosure, a dropout prevention structure in which the housing is scraped will be described as an example. FIGS. 22 to 25 show an example of a dropout prevention structure in which the housing is scraped. FIG. 22 is a diagram showing a configuration example of the dropout prevention component A. FIG. 23 is a diagram showing a configuration example of the housing C. FIG. 24 is a diagram showing a configuration example of the module B. FIG. 25 is a diagram showing a state in which the module B is housed in the housing C provided in the rack D.

[0052] As shown in FIGS. 24 and 25, the dropout prevention component A shown in FIG. 22 is fixed inside the module B. The dropout prevention component A includes a hook a in the shape of an arrowhead at the center of a leaf spring member formed of a stainless steel sheet metal or the like. By hooking the hook a in the groove e provided on the inner wall d of the housing C, the dropout prevention component A prevents the module B from falling off. The dropout prevention component A also includes a fixed end b fixed to the module B by a rivet or the like, and a flat portion c on the side opposite to the fixed end b that can be pushed by an operator. By pushing the flat portion c while firmly gripping the module B so that the operator does not drop the module B, the lock of the hook a is released and the module B can be removed.

[0053] In this anti - detachment component A, there is a possibility that metal is scraped off when the tip of the hook a rubs against the inner wall d made of sheet metal. Also, when the hook a is made of a resin member, the number of members increases due to the combination of the leaf spring member and the resin member, resulting in a cost issue.

[0054] The anti - detachment component 5 of the present disclosure has the above - described structure, thereby preventing the inner wall of the container 3 from being scraped. Also, since the anti - detachment component 5 can be formed from a single member, there is an advantage in terms of cost.

[0055] <Supplementary Note> Some or all of the above - described embodiments may be described as follows in the supplementary note, but are not limited thereto.

[0056] (Supplementary Note 1) An anti - detachment component having a substantially rectangular plate - like shape that can be fixed to a module that can be inserted into and removed from a container, A fixing portion provided near one end in the longitudinal direction of the anti - detachment component and formed to be fixable inside the module; A hook portion provided near one end on the opposite side of the fixing portion and formed to protrude outside the module through a first opening of the module and be hooked on the container; A protrusion portion provided between the fixing portion and the hook portion and formed to protrude outside the module through a second opening of the module and be able to contact the inner surface of the container; Comprising: The anti - detachment component has elasticity, The maximum height of the hook portion from the plate plane, which is a plane including the substantially rectangular plate - like portion of the anti - detachment component, is lower than the maximum height of the protrusion portion from the plate plane, Among the protrusion portions, the portion that contacts the inner surface of the container has a smooth shape. Anti - detachment component.

[0057] (Supplementary Note 2) The protrusion portion is formed by processing the member into a convex shape. The anti - detachment component described in Supplementary Note 1.

[0058] (Supplementary Note 3) Formed from a single member, The anti - detachment component described in Supplementary Note 1 or Supplementary Note 2.

[0059] (Supplementary Note 4) Formed of a metal material, The anti - detachment component described in any one of Supplementary Notes 1 to 3.

[0060] (Supplementary Note 5) The hook portion is formed by bending the member, The anti - detachment component described in any one of Supplementary Notes 1 to 4.

[0061] (Supplementary Note 6) The protrusion portion is formed on a base portion formed by bending the member, The anti - detachment component described in any one of Supplementary Notes 1 to 5.

[0062] (Supplementary Note 7) The hook portion is formed by two hook - shaped hooks, The anti - detachment component described in any one of Supplementary Notes 1 to 6.

[0063] (Supplementary Note 8) When the module is pulled out from the housing until the protrusion portion protrudes outside the housing, the hook portion is formed to protrude from the first opening portion such that the protrusion portion and the hook portion are formed. The anti - detachment component described in any one of Supplementary Notes 1 to 7.

[0064] (Supplementary Note 9) The protrusion portion contacts the housing when the protrusion portion is inside the housing, The anti - detachment component described in any one of Supplementary Notes 1 to 8.

[0065] (Supplementary Note 10) The anti-drop component according to any one of Supplementary Notes 1 to 9, and a latching portion provided on the housing and capable of latching the hook portion An anti-drop structure comprising.

[0066] As described above, the present disclosure has been described with reference to the embodiments. However, the present disclosure is not limited to the above-described embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure. And each embodiment can be combined with other embodiments as appropriate.

Explanation of Signs

[0067] 1, 2 Rack mount 3 Housing 3-1 Module accommodating portion 3-2 Side surface 3-3 Latching portion 4 Module 4-1 Side surface 4-2 First opening 4-3 Second opening 4-4 Coupling portion 5 Anti-drop component 5-1 Hook portion 5-2 Base portion 5-3 Protrusion 5-4 Fixing portion

Claims

1. An anti - detachment component having a substantially rectangular plate - like 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 in the longitudinal direction of the anti - detachment component and formed to be fixable inside the module; a hook portion provided near one end on the opposite side of the fixing portion, protruding outside the module through a first opening of the module and formed to be hookable to the housing; a protrusion portion provided between the fixing portion and the hook portion, protruding outside the module through a second opening of the module and formed to be capable of contacting the inner surface of the housing; comprising, the anti - detachment component has elasticity, the maximum height of the hook portion from a plate plane which is a plane including the substantially rectangular plate - like portion of the anti - detachment component is lower than the maximum height of the protrusion portion from the plate plane, among the protrusion portions, the portion contacting the inner surface of the housing has a smooth shape, anti - detachment component.

2. the protrusion portion is formed by processing a member into a convex shape, the anti - detachment component according to claim 1.

3. formed from a single member, the anti - detachment component according to claim 1.

4. formed of a metal material, the anti - detachment component according to claim 1.

5. the hook portion is formed by bending a member, the anti - detachment component according to claim 1.

6. the protrusion portion is formed on a base portion formed by bending a member, the anti - detachment component according to claim 1.

7. The hook portion is formed by two hook-shaped hooks. The anti-drop component according to claim 1.

8. The protrusion and the hook portion are formed such that when the module is pulled out from the housing until the protrusion exits the housing, the hook portion protrudes from the first opening. The anti-drop component according to claim 1.

9. The protrusion contacts the housing when the protrusion is inside the housing. The anti-drop component according to claim 1.

10. The anti-drop component according to claim 1, and A latching portion provided on the housing and capable of latching the hook portion An anti-drop structure comprising the same.

Images