Door opening maintaining structure and door opening maintaining member

Abstract

To prevent a door opened with an opening of a housing body facing upward from being unintentionally closed.SOLUTION: A door opening maintaining structure includes an electric / electronic apparatus housing box having a housing body 81 and a door 82 and a door opening maintaining member 2. The housing main body is disposed such that an opening portion faces upward and a rising piece extends in a vertical direction. The door opening maintaining member is configured as follows. A rising piece 81b is inserted into an inserted portion such that a first wall portion 21 faces an inner side surface of the rising piece and a second wall portion 22 faces an outer side surface of the rising piece. The other end side is positioned facing the door. When force is applied in a direction of closing the door, a state is maintained such that a space portion 71 is interposed above a portion where an outer surface of the rising piece and the second wall portion come in contact with each other, and between the outer side surface and the second wall portion, or above a portion where the rising piece and the second wall portion come in contact with each other, and the space portion is interposed between the outer side surface and the second wall portion.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a door open retention structure and a door open retention member. [Background technology]

[0002] When installing equipment or performing wiring work inside the housing of an electrical equipment storage box, the door is open to perform the work. However, if the door is opened with the opening facing upward and is accidentally closed due to an impact or another worker unexpectedly bumping into it, it could pose a risk to the worker. For this reason, it is necessary to keep the door open during work. Patent Document 1 proposes placing a door-open retention member between the housing and the door to stably hold the door open. However, the door-open retention member disclosed in Patent Document 1 requires the user to rotate the anti-detachment piece and clamp the water drain using the water drain engagement portion when placing it between the housing and the door, which is a time-consuming process. Furthermore, making the anti-detachment piece rotatable results in a complex structure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-75404

[0004] To solve the above problems, the inventors came up with a door open retention member P2 without a pivot mechanism, as shown in Figure 13. The inventors created this member with the expectation that by inserting the insertion portion into a rising piece that forms the opening of the housing, this door open retention member P2 would prevent the door from opening. However, in consideration of ease of installation, the insertion portion of this door open retention member P2 was formed into a groove shape with inclined sides that flared slightly at the end. It was discovered, however, that when force was applied in the direction of closing the door, the door open retention member P2 would move upward, and there was a risk that the door open retention member P2 would fall off the door. Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present invention have diligently studied this issue and have attempted to solve it. The problem that the present invention aims to solve is to prevent the door from closing unintentionally when it is opened with the opening of the housing body facing upward. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, there is provided a door open retention structure including a box for storing electrical and electronic equipment, the box having a housing body with a rising piece around an opening, and a door rotatably attached to the housing body, and a door open retention member attached to the housing body to prevent the door from closing, wherein the housing body is arranged so that the opening faces upward and the rising piece extends in the vertical direction, and the door open retention member has an insertion receiving portion at one end that allows the rising piece to be inserted into a gap located between a first wall portion and a second wall portion, and the opening retention member is attached to the first wall portion. The standing piece is inserted into the insertion portion so that the first wall portion faces the inner side surface of the standing piece and the second wall portion faces the outer side surface of the standing piece, with the other end positioned opposite the door, and when force is applied in the direction of closing the door, the door open maintenance structure maintains a state where the first wall portion is above the point where the outer side surface of the standing piece and the second wall portion come into contact and a space is interposed between the outer side surface and the second wall portion, or a state where the first wall portion is above the point where the standing piece and the second wall portion come into contact and a space is interposed between the outer side surface and the second wall portion.

[0007] Furthermore, it is preferable that the door open maintaining member be configured so that, when viewed from the side, the distance between the straight line extending through the contact point with the inner side surface of the first wall portion toward the base end of the first wall portion and the straight line extending through the contact point with the inner side surface of the first wall portion toward the base end of the first wall portion is shorter than the base end distance, which is the distance between the straight line extending through the contact point with the inner side surface of the first wall portion toward the base end of the first wall portion and the base end of the second wall portion.

[0008] It is also preferable that the position where the first wall portion contacts the rising piece be lower than the position where the second wall portion contacts the rising piece.

[0009] Furthermore, it is preferable that the door open maintaining member for an electrical / electronic device storage box has an insertable portion at one end that allows the standing piece to be inserted into the gap between the first wall portion and the second wall portion, and the insertable portion has a first wall portion that can contact the inner side of the standing piece and a second wall portion that can contact the outer side of the standing piece, and when viewed from the side, at a point tip-side of the base end of the second wall portion on an extension line of the inner surface of the base side of the second wall portion, the distance to the first wall portion is shorter at some points on that extension line than at other points on the extension line, or at a portion where the distance between the first wall portion and the second wall portion is shorter than the distance between the first wall portion and an extension line of the inner surface of the base side of the second wall portion that is located tip-side of the base end of the second wall portion.

[0010] Furthermore, it is preferable that the door open maintaining member for an electrical / electronic device storage box has an insertable portion at one end that allows the standing piece to be inserted into the gap between the first wall portion and the second wall portion, the insertable portion having a first wall portion that can contact the inner side of the standing piece and a second wall portion that can contact the outer side of the standing piece, and a protrusion that protrudes toward the first wall portion from the base end of the second wall portion toward the tip side.

[0011] Furthermore, it is preferable that the insertable portion is provided on one end side and a second insertable portion is provided on the other end side so that the rising piece can be inserted into the gap located between the third wall portion and the fourth wall portion, and that the angle formed between the direction in which the tip of the first wall portion extends and the direction in which the tip of the third wall portion extends is greater than 0 degrees but less than 180 degrees, and that the distance between the first wall portion and the second wall portion of the insertable portion is shorter than the distance between the third wall portion and the fourth wall portion of the second insertable portion. [Effects of the Invention]

[0012] In the present invention, it is possible to prevent the door, which is open with the opening of the housing body facing upward, from being closed unintentionally. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 10 is a perspective view showing an example of a door open keeping structure. [Figure 2] 2 is an enlarged view of the vicinity of a door open-retaining member of the door open-retaining structure shown in FIG. 1. [Figure 3] 10A and 10B are cross-sectional views showing examples of mounting modes of a door open retention member. [Figure 4] 4 is a cross-sectional view showing an example of an attachment mode of the door open retention member different from that of FIG. 3, and showing a state in which movement of the door in the closing direction is suppressed, where dashed arrows indicate an example of the direction of force applied when trying to close the door. [Figure 5] 10 is a diagram showing the relationship between the rising piece and the receiving portion when the movement of the door in the closing direction is restricted, where the rising piece is shown in cross section. [Figure 6] 4 is a diagram showing a configuration in which, in a side view, the example shown in Figure 4 has a portion closer to the distal end than the proximal end of the second wall portion, where the distance from the line passing through the contact point with the inner side surface of the first wall portion and extending toward the proximal end of the first wall portion is shorter than the proximal end distance, which is the distance between the line and the proximal end of the second wall portion. Note that the line passing through the contact point with the inner side surface of the first wall portion and extending toward the proximal end of the first wall portion is represented by a dashed line. Also, the two-headed arrow indicates that the distance is different. [Figure 7] FIG. 2 is a perspective view of a door open-retaining member used in the example shown in FIG. 1. [Figure 8] 4 is a diagram showing a configuration in which an extension line of the inner surface of the base side of the second wall portion overlaps with the first wall portion in a side view, where the extension line of the inner surface of the base side of the second wall portion is shown by a dashed line. [Figure 9] 4 is a diagram showing an example in which a door open retention member different from that shown in FIG. 3 is attached to the housing, with the extension line of the inner surface of the base side of the second wall portion being shown by a broken line. [Figure 10] 9 is a diagram showing a configuration in which, in a side view, the example shown in Figure 9 has a portion on the distal side of the base end of the second wall portion where the distance from the line passing through the contact point with the inner side surface of the first wall portion and extending toward the base end of the first wall portion is shorter than the base end distance, which is the distance between the line and the base end of the second wall portion. Note that the line passing through the contact point with the inner side surface of the first wall portion and extending toward the base end of the first wall portion is represented by a dashed line. Also, arrows indicate that the distance is different. [Figure 11] 10A and 10B are diagrams showing an example in which a door open retention member having a protrusion on a second wall portion is attached to a housing. [Figure 12] 11 shows a configuration in which, in a side view, the example shown in FIG. 11 includes a portion closer to the distal end than the proximal end of the second wall portion, where the distance from the line passing through the contact point with the inner side surface of the first wall portion and extending toward the proximal end of the first wall portion is shorter than the proximal end distance, which is the distance between the line and the proximal end of the second wall portion. Note that the line passing through the contact point with the inner side surface of the first wall portion and extending toward the proximal end of the first wall portion is represented by a dashed line. Arrows also indicate the difference in distance. [Figure 13] This is a diagram showing that the open-retention member conceived by the inventor prior to the present invention moves so as to fall off the housing body when the door is moved to close. However, the dashed arrow shows an example of the direction of the force acting on the open-retention member due to the door movement, and the thick black arrow shows an example of the direction in which the open-retention member tends to move as a result. DETAILED DESCRIPTION OF THE INVENTION

[0014] 1 to 5, a door open keeping structure 1 of the embodiment includes an electrical / electronic device storage box 8 having a housing body 81 with a rising piece 81b around an opening 81a, a door 82 rotatably attached to the housing body 81, and a door open keeping member 2 attached to the housing body 81 to prevent the door 82 from closing. The housing body 81 of this door open keeping structure 1 is arranged so that the opening 81a faces upward and the rising piece 81b extends in the vertical direction. Furthermore, the door open retaining member 2 has an insertion receiving portion 31 at one end thereof that allows the rising piece 81b to be inserted into the gap located between the first wall portion 21 and the second wall portion 22. The rising piece 81b is inserted into the insertion receiving portion 31 so that the first wall portion 21 faces the inner side surface of the rising piece 81b and the second wall portion 22 faces the outer side surface of the rising piece 81b, and the other end is positioned opposite the door 82. Furthermore, when a force is applied in the direction of closing the door 82, a space 71 is interposed between the outer side surface and the second wall portion 22 above the point where the outer side surface of the rising piece 81b contacts the second wall portion 22. Alternatively, when a force is applied in the direction of closing the door 82, a state is maintained in which the rising piece 81b is above the point where the rising piece 81b contacts the second wall portion 22 and the space 71 is interposed between the outer side surface and the second wall portion 22. Therefore, it is possible to prevent the door 82, which is open with the opening 81a of the housing main body 81 facing upward, from being closed unintentionally.

[0015] The electrical / electronic device storage box 8 to which the door open retention member 2 is attached comprises a housing body 81 and a door 82 rotatably attached to the housing body 81. The door 82 can cover an opening 81a provided in the housing body 81, and can usually also cover the rising piece 81b.

[0016] As can be seen from FIG. 1, the door open keeping member 2 used in the door open keeping structure 1 is used with the opening 81a of the electrical and electronic equipment storage box 8 facing upward. In this state, the rising piece 81b extends in the vertical direction. Simply by inserting the rising piece 81b of the electrical and electronic equipment storage box 8 arranged in this manner into the insertion portion 31 of the door open keeping member 2, the door 82 can be prevented from closing (see FIGS. 2 and 3). In this embodiment, the door open keeping member 2 can be removed from the electrical and electronic equipment storage box 8 by pulling it upward.

[0017] More specifically, the door open retention member 2 is attached to the rising piece 81b adjacent to the rotation axis of the door 82. In Fig. 1, two door open retention members 2 are attached to the housing main body 81, but the number of door open retention members 2 attached can be one or three or more depending on the strength of the rising piece 81b and the load when the door 82 rotates.

[0018] The door open keeping member 2 has an insertion receiving portion 31 at one end thereof that allows the standing piece 81b to be inserted into the gap between the first wall portion 21 and the second wall portion 22. By inserting the standing piece 81b into the insertion receiving portion 31, the first wall portion 21 faces the inner side surface of the standing piece 81b, and the second wall portion 22 faces the outer side surface of the standing piece 81b. In addition, in the state shown in FIG. 3, when the door open keeping member 2 is attached to the housing main body 81, it is also always in contact with the door 82.

[0019] However, if the opening angle of the door 82 is somewhat large, the door open retention member 2 may not come into contact with the door 82 even when attached to the housing main body 81 (see FIG. 4). Even in this case, when the door 82 is closed, a state similar to that shown in FIG. 3 is reached (see FIGS. 3 and 4), so ultimately, the door 82 can be prevented from closing. In other words, even when the door open retention member 2 is attached in advance so as to come into contact with the door 82, and even when it does not come into contact with the door 82 until a force is applied to close the door 82, the door 82 can be prevented from closing.

[0020] In the example shown in Fig. 4, even when the rising piece 81b is inserted into the insertion receiving portion 31 of the door open retaining member 2, unless the door 82 is in a state where it is pushing the door open retaining member 2, the second wall portion 22 that faces the outer side surface of the rising piece 81b does not abut against the intermediate position on the outer side surface of the rising piece 81b. In this state, the door open retaining member 2 is pushed by the door 82 as the door 82 moves to close, and moves to a position where it cannot move any further (see Fig. 4). In this state, the door open retaining member 2 prevents the door 82 from moving any further in the closing direction.

[0021] In order to prevent the door 82 from moving in the closing direction, in the example shown in FIG. 4, when a force is applied in the closing direction of the door 82, a space 71 is provided above (toward the tip of) the rising piece 81b relative to the contact point between the outer side surface of the rising piece 81b and the second wall portion 22, and between the outer side surface and the second wall portion 22 (see FIG. 4). Also, in the example shown in FIG. 3, when a force is applied in the closing direction of the door 82, a state in which the space 71 is provided is maintained above (toward the tip of) the rising piece 81b relative to the contact point between the rising piece 81b and the second wall portion 22, and between the outer side surface and the second wall portion 22. Furthermore, since the door open retention member 2 is made of resin or the like, even if the door open retention member 2 undergoes some elastic deformation when a force is applied in the closing direction of the door 82, the presence of the space 71 makes it possible to prevent the door 82 from closing unintentionally. That is, in either case, when a force is applied in the closing direction of the door 82, the state shown in FIG. 5 is achieved.

[0022] In order to make this possible, it is preferable that the door open retention member 2 be configured so that, when viewed from the side, the distance between the line extending through the contact point with the inner side surface of the first wall portion 21 toward the base end of the first wall portion 21 is shorter than the base end distance, which is the distance between the line extending through the contact point with the inner side surface of the first wall portion 21 toward the base end of the first wall portion 21 and the base end of the second wall portion 22 (see Figure 6).

[0023] Incidentally, it is preferable that the door open retention member 2 be able to maintain the door 82 in a state where it is open by 90 degrees or more from the closed state. This is because if the door 82 is in a state where it forms an angle smaller than that angle, gravity will apply a force that tends to close the door 82. On the other hand, if the door 82 is in a state where it is open by more than 90 degrees, gravity will tend to force the door 82 to open. For this reason, it is preferable that the door open retention member 2 be positioned so that it straddles the pivot axis of the door 82 in a plan view.

[0024] It is also preferable that one door open retention member 2 be able to accommodate different electrical and electronic equipment storage boxes 8. For example, it is preferable that the door open retention member 2 be able to accommodate standing pieces 81b having different thicknesses. In this case, it is sufficient to have a configuration in which an inserted portion 31 is provided on one end side and a second inserted portion 32 having a different form from the inserted portion 31 is provided on the other end side.

[0025] To make this possible, it is preferable to provide an insertable portion 31 on one end side and a second insertable portion 32 on the other end side that allows the rising piece 81b to be inserted into the gap located between the third wall portion 23 and the fourth wall portion 24, and to configure the angle between the direction in which the tip of the first wall portion 21 extends and the direction in which the tip of the third wall portion 23 extends to be greater than 0 degrees but less than 180 degrees, and the distance between the first wall portion 21 and the second wall portion 22 of the insertable portion 31 to be shorter than the distance between the third wall portion 23 and the fourth wall portion 24 of the second insertable portion 32.

[0026] In order to make it easier to exert a force that resists a force applied to close the door 82, it is preferable that the position where the first wall portion 21 contacts the rising piece 81b be lower than the position where the second wall portion 22 contacts the rising piece 81b. For this reason, it is preferable that the first wall portion 21 be longer than the second wall portion 22.

[0027] The door open retention member 2 used in the examples shown in Figures 3 and 4 has a form as shown in Figure 7, and is provided at one end with an insertable portion 31 that allows the standing piece 81b to be inserted into the gap between the first wall portion 21 and the second wall portion 22, and the insertable portion 31 is provided with the first wall portion 21 that can come into contact with the inner side surface of the standing piece 81b and the second wall portion 22 that can come into contact with the outer side surface of the standing piece 81b, so that in side view the extension line of the inner side surface of the base side of the second wall portion 22 overlaps with the first wall portion 21 (see Figure 8).

[0028] Furthermore, the door open retention member 2 does not have to be configured as shown in Fig. 7. For example, the inner surfaces of the first wall portion 21 and the third wall portion 23 may be configured to be linear from the base end side to the tip end side in a side view (see Fig. 9). Even in this case, it is possible to provide an insertion receiving portion 31 at one end that allows the standing piece 81b to be inserted into a gap between the first wall portion 21 and the second wall portion 22, and to provide the insertion receiving portion 31 with the first wall portion 21 that can come into contact with the inner side surface of the standing piece 81b and the second wall portion 22 that can come into contact with the outer side surface of the standing piece 81b, so that the first wall portion 21 overlaps with an extension line of the inner surface of the base end of the second wall portion 22 in a side view.

[0029] In addition, when viewed from the side, the door open maintaining member 2 can be provided with a portion that is closer to the tip side than the base end of the second wall portion 22, where the distance between the straight line that passes through the contact point with the inner side surface of the first wall portion 21 and extends toward the base end of the first wall portion 21 is shorter than the base end distance, which is the distance between the straight line that passes through the contact point with the inner side surface of the first wall portion 21 and extends toward the base end of the first wall portion 21 and the base end of the second wall portion 22 (see Figure 10).

[0030] 11, the second wall portion 22 may have a structure in which the majority of its inner surface is flat and a portion thereof is provided with a protrusion 27. This structure can reduce the amount of material used. Even in this structure, even if the door open retention member 2 undergoes some elastic deformation when a force is applied in the closing direction of the door 82, the presence of the space 71 makes it possible to prevent the door 82 from closing unintentionally.

[0031] As can be understood from these descriptions, it is preferable that the insertable portion is provided at one end side so that the standing piece can be inserted into the gap between the first wall portion and the second wall portion, and the insertable portion is provided with a first wall portion that can contact the inner side surface of the standing piece and a second wall portion that can contact the outer side surface of the standing piece, and that when viewed from the side, "on the extension line of the inner surface of the base side of the second wall portion, at the tip side of the base end of the second wall portion, the distance to the first wall portion is shorter at some points on that extension line than at other points on that extension line," or "there is a portion where the 'distance between the first wall portion and the second wall portion' is shorter than the distance between the 'extension line of the inner surface of the base side of the second wall portion that is located tip side of the base end of the second wall portion' and the 'first wall portion'."

[0032] Furthermore, it is preferable that one end side has an insertable portion 31 that allows the standing piece 81b to be inserted into the gap between the first wall portion 21 and the second wall portion 22, and that the insertable portion 31 has a first wall portion 21 that can contact the inner side of the standing piece 81b and a second wall portion 22 that can contact the outer side of the standing piece 81b, and that the second wall portion 22 has a protruding portion 27 that protrudes toward the first wall portion 21 from the base end portion toward the tip side (see Figure 11).

[0033] In the example shown in Figure 11, the door open retention member 2 has a portion located further towards the tip than the base end of the second wall portion 22, where the distance between the straight line passing through the point of abutment with the inner side surface of the first wall portion 21 and extending towards the base end of the first wall portion 21 is shorter than the base end distance, which is the distance between the straight line passing through the point of abutment with the inner side surface of the first wall portion 21 and the base end of the second wall portion 22 (see Figure 12).

[0034] The door open retaining member 2 of the embodiment is made of a highly rigid resin so that it can withstand force applied from the door 82. In addition, in the example shown in Fig. 7, a rib portion 28 is provided in the outer central portion of the door open retaining member 2 so that it can easily withstand force that may be applied from one end side and the other end side of the door open retaining member 2. This rib portion 28 is configured in a generally triangular shape when viewed from the side, but it does not have to have such a configuration.

[0035] While the present invention has been described above using the embodiments as examples, the present invention is not limited to the above embodiments and can be embodied in various forms. For example, the door open retention member in the embodiment is made of a highly rigid resin so as to withstand the force applied from the door, but it is also possible to use metal for part or all of the member. [Explanation of symbols]

[0036] 1 Door open maintenance structure 2 Door open retention member 8. Electrical and electronic equipment storage boxes 21 First wall 22 Second wall 23 Third wall 24 Fourth wall 27 Protrusion 31 Inserted part 32 Second insertion part 71 Space section 81 Main body 82 Door 81b Standing piece

Claims

1. A door open retention structure comprising: a box for storing electrical and electronic equipment, the box having a housing body with a rising piece around an opening, and a door rotatably attached to the housing body; and a door open retention member attached to the housing body to prevent the door from closing, The housing body is arranged so that the opening faces upward and the rising piece extends in the vertical direction, The door open retention member has an insertion portion at one end that allows the rising piece to be inserted into the gap located between the first wall portion and the second wall portion, and the rising piece is inserted into the insertion portion so that the first wall portion faces the inner side surface of the rising piece and the second wall portion faces the outer side surface of the rising piece, and the other end side is positioned opposite the door, A door open maintenance structure that, when a force is applied in the direction of closing the door, maintains a state in which the door is above the point where the outer side surface of the rising piece and the second wall portion come into contact and a space is interposed between the outer side surface and the second wall portion, or maintains a state in which the door is above the point where the rising piece and the second wall portion come into contact and a space is interposed between the outer side surface and the second wall portion.

2. The door open maintaining member is In side view, 2. A door open retention structure as described in claim 1, wherein the distance between the first wall portion and a straight line passing through the contact point with the inner side surface of the first wall portion and extending toward the base end of the first wall portion is shorter than the base end distance, which is the distance between the second wall portion and a straight line passing through the contact point with the inner side surface of the first wall portion and extending toward the base end of the first wall portion.

3. 2. The door open keeping structure according to claim 1, wherein the position where the first wall portion contacts the rising piece is lower than the position where the second wall portion contacts the rising piece.

4. an insertion portion provided at one end side to allow the rising piece to be inserted into a gap between the first wall portion and the second wall portion; The insertion portion has a first wall portion that can come into contact with an inner side surface of the rising piece and a second wall portion that can come into contact with an outer side surface of the rising piece, In side view, On the tip side of the base end of the second wall portion on an extension line of the inner surface of the base side of the second wall portion, the distance to the first wall portion is shorter at some points on the extension line than at other points on the extension line, or the distance between the first wall portion and the second wall portion is shorter than the distance between the extension line of the inner surface of the base side of the second wall portion, which is located tip side of the base end of the second wall portion, and the first wall portion A member for keeping the door open of a box for storing electrical and electronic equipment.

5. an insertion portion provided at one end side to allow the rising piece to be inserted into a gap between the first wall portion and the second wall portion; The insertion portion has a first wall portion that can come into contact with an inner side surface of the rising piece and a second wall portion that can come into contact with an outer side surface of the rising piece, The second wall portion has a protruding portion protruding toward the first wall portion from the base end portion toward the tip end. A member for keeping the door open of a box for storing electrical and electronic equipment.

6. a receiving portion on one end side, and a second receiving portion on the other end side that allows the rising piece to be inserted into a gap located between the third wall portion and the fourth wall portion; an angle formed between a direction in which the tip of the first wall portion extends and a direction in which the tip of the third wall portion extends is greater than 0 degrees but smaller than 180 degrees; A door open retention member for an electrical and electronic equipment storage box as described in claim 4 or 5, wherein the distance between the first wall portion and the second wall portion of the insertion portion is shorter than the distance between the third wall portion and the fourth wall portion of the second insertion portion.

Images