JP3503872B2 - Lever structure of electrical junction box - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever structure of an electrical junction box, which is configured to easily connect or disconnect (disconnect) a connector by rotating a rotating member such as an operating lever. In particular, it is suitable for use in various devices and equipment that require force for connection and disconnection operations, such as a multi-pole connector used for automobile wiring.

[0002]

2. Description of the Related Art Today's automobiles are equipped with various electronic devices.
The electric junction box 51 shown in FIG. 24 may be used. An electric component mounting portion 53 and a lever structure 54 are provided on the upper surface of the upper case 52 that constitutes the electric junction box 51.
A connector 55 is provided on the lower surface of the upper case 52 at a position corresponding to the lower portion of the lever structure 54. A connector 57 and a guide pillar 58 are provided in the lower case 56, and a pair of guide pins 59 are provided on both sides of the guide pillar 58. The other guide pin 59 is provided right behind the position shown in FIG. 20, but only one is shown in each drawing for convenience of illustration. The upper cover 60 covers the upper case 52 and the lower case 55.

The lever structure 54 connects and disconnects the connector 55 provided on the upper case 52 and the connector 57 provided on the lower case 56. Lever structure 54
21 includes a lever member 61 shown in FIG. 21 and a lever support portion 71 provided on the upper surface of the upper case 52 as shown in FIG. The lever member 61 is a flat plate-shaped operation portion 62.
And locking projections 62A provided on both sides thereof, and a pair of cam side plates 63 provided so as to extend from both sides of the operation portion 62.
Is equipped with. Since the cam side plate 63 has a target structure, the same reference numerals are given to the two, and a description will be given. A guide groove 64 is formed on the outer side surface from the upper part toward the center in FIG. Uphill slope 64
A bearing hole 65 is formed at the tip thereof.

The bearing hole 65 is for rotatably supporting the lever member 61 on a lever support portion 71 which will be described later. A guide groove 66 for guiding the guide pin 59 is formed in a semicircular shape around the bearing hole 65. However, the guide groove 66 does not have the same radius with respect to the bearing hole 65, but has a starting end (radius R1) as shown in FIGS.
From the end to the end (radius R2), the radius centering on the bearing hole 65 is gradually reduced. As shown in FIG. 21, most of the guide groove 66 has a cam side plate 6
It is formed in a shape penetrating through 3. However, on the inner surface of the cam side plate 63, a groove-shaped (a recessed bottomed groove, not a through-hole) introduction portion 66A for introducing the guide pin 59 into the guide groove 66 is formed. Introduction part 66A and guide groove 6
The communication shape with 6 is shown in FIGS. 23 and 24.

The lever support portion 71 includes a pair of support side plates 72 formed in a partition shape on the upper surface of the upper case 52, a support shaft 73 provided on the inner side surface of each support side plate 72, and FIGS.
3 is provided with a locking protrusion 74 provided at an end portion on the left side (hereinafter, referred to as a front side for convenience of description). The support shaft 73 is
The lever member 61 is inserted into a bearing hole 65 formed in the cam side plate 63 to pivotally support the lever member 61. The locking protrusions 74 are formed on both sides of the operation portion 62.
By locking A, the lever member 61 is fixed.

When the lever member 61 is assembled to the lever support portion 71, the operating portion 62 is set upward as shown by an imaginary line in FIG. 22, and the right side of FIG. 20, FIG. 23 and FIG.
For convenience of description, referred to as rear) from the pair of support side plates 72
Insert in between. Then, the support shaft 7 formed on the support side plate 72
3, the guide groove 64 formed in the lever member 61 is aligned, and the lever member 71 is pushed in while the support side plate 72 is expanded by using a special jig. As a result, the support shaft 73 gets over the inclined surface 64A and then fits into the bearing hole 65. At this point, when the pushing and spreading by the special jig is released, the lever member 61 is rotatably supported by the lever support portion 71. The support shaft 73 does not come out of the bearing hole 64 unless the supporting side plate 72 is pushed out, and the lever member 61 continues to rotate smoothly after the fitting.

Next, the connector 55 provided on the upper case 52
Then, the connection of the connector 57 provided on the lower case 56 will be described. When the lever member 61 is rotatably attached to the lever support portion 71 and the operation portion 62 is tilted backward as described above, the introduction portion 66A is positioned at the lower portion as shown in FIG. When the upper case 52 is overlapped with the lower case 56 in this state, the guide post 58 enters between the pair of cam side plates 63, and at the same time, the guide pin 59 extends from the introduction portion 66A to the start end of the guide groove 66, that is, the position of the maximum radius R1. Will be introduced to. In this state, when the operation portion 62 is picked up with fingers and is urged to rotate in the direction of arrow A, the guide pin 59 is pulled up corresponding to the reduction of the radius of the guide groove 66, and the guide pin 5
The connector 57 integrated with 9 is also pulled up.

When the operating portion 62 is rotated to the front as shown in FIG. 24, the guide pin 59 engages with the end of the guide groove 66. Since the terminal end has the minimum radius, the pull-up distance of the guide pin 59 and the connector 57 becomes the maximum, and at this time, the connectors 55 and 57 are connected so as to be able to conduct electricity. The locking projections 62A formed on both sides of the operation portion 62
By overcoming the locking projection 74 formed on the support side plate 72, the lever member 61 becomes unrotatable and the connection between the connectors 55 and 57 is fixed. In addition,
When releasing (disconnecting) the connection state, the operation unit 6
2 is urged in the direction opposite to the arrow A, and the locking projections 62A, 74
It is sufficient to release the lock of and to return the operation portion 62 to the original position.

[0009]

In the lever structure 54, the force for pulling up the connector 57 and the connector 55 are used.
Is applied to the lever member 61 and the lever support portion 71. This force becomes particularly large when the connectors 55 and 57 have multiple poles. Although the lever member 61 and the lever support portion 71 are molded from synthetic resin, they are formed with high rigidity in consideration of the load. Therefore, the locking protrusion 62A,
All of 74 are formed with high rigidity. Lever member 6
It is necessary to allow the locking projection 62A to ride over the locking projection 74 both when locking 1 to the lever support portion 71 and when unlocking. However, because of the high rigidity, the operator who operates must forcefully engage and disengage the lock, and the operability and workability are poor.

Japanese Patent Laid-Open No. 8-47142 discloses a "connecting structure of a connector to an electric connection box" for the purpose of improving work efficiency when fitting the connector to the connector portion. However, although the disclosed invention is provided with a rotatably provided lever and a connector that is moved by the rotation of the lever, the point is that the lever is used to connect two types of connectors. Therefore, the operability at the time of positioning the lever member for connecting and disconnecting the connector as described above is not improved.

The present invention solves the above-mentioned problems, and an object thereof is to provide a lever structure of an electric connection box which is excellent in operability and can smoothly connect and disconnect a connector with a small operation force. is there.

[0012]

The above object according to the present invention is achieved by the lever structure of an electric junction box described in (1) to (3) below. (1) An upper case provided with a connector is provided with a lever support portion provided with a pair of support side plates, and a lever member rotatably supported by a support shaft formed on the pair of support side plates is provided.
The lever member is provided on the lower case by rotating the lever member about the support shaft and guiding a guide pin provided on the lower case up and down by a guide groove formed on the lever member. A connector that moves up and down integrally with the pin is connected to and disconnected from the connector, and a locking projection provided on the operating portion of the lever member is locked to a locking projection provided on the supporting side plate at a connector connection position. In the lever structure of the electric connection box, the locking projection is elastically bent and deformable at a position facing the pair of support side plates on the side surface of the operation portion. Lever structure.

(2) A lever supporting portion provided with a pair of supporting side plates is provided on the upper case provided with the first connector, and a lever is rotatably supported by a support shaft formed on the pair of supporting side plates. A member is provided, the lever member is rotated about the support shaft, and a guide groove formed in the lever member guides and vertically moves a guide pin provided in the lower case. And a second connector that moves up and down integrally with the guide pin .
Been connected and disconnected to the first connector, it is engaged with the second locking protrusion first engaging projection provided on the operation portion of the lever member is provided on the support side plate in the connector connecting position In the lever structure of the electrical junction box, the operating portion of the lever member is hollow, and the operating portion is bent and deformed.
Formed with an easy long plate and a short plate with little bending deformation
That is, the lever structure of the electric connection box.

(3) A locking projection for positioning the lever member by locking the locking projection when positioning the connector is provided on the side surfaces of the pair of supporting side plates. 2) The lever structure of the electric connection box described above.

The lever structure of the electrical junction box described in (1) above is the side surface of the operating portion constituting the lever member, and the position facing the pair of support side plates for rotatably mounting the lever member. Since the locking protrusion that elastically bends and deforms is provided on the lever, the lever member can be locked or unlocked at one end of the pair of supporting side plates without lowering the rigidity of the operating portion.

In the lever structure of the electrical junction box described in (2) above, since the operating portion that has the locking projection for fixing the lever member and rotates the lever member is formed in a hollow shape, the locking projection itself. The entire operating portion including the locking projections can be elastically deformed without reducing the rigidity of the. Also before
The lever structure of the electric junction box described in (2) has an operating part.
Since the long plate part and the short plate part are formed in a rectangular hollow shape,
In particular, the long plate part that constitutes the operation part is easily bent and deformed.
With the elasticity of the
You will be able to do it.

In the lever structure of the electrical junction box described in (3) above, the locking projections are locked to the side surfaces of the pair of supporting side plates at the time of connector connection positioning to position the lever member. By providing the protrusion, the position of the lever member at the time of connecting the connector is easily fixed.

[0018]

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of a lever structure for an electric junction box according to the present invention will be described with reference to FIGS. 1 and 2 are perspective views showing the external configuration of the lever member, FIG. 3 is a plan view of the lever member, FIG. 4 is a sectional view showing the configuration of the operating portion, FIG. 5 is a side view of the lever member, and FIG. 6 is a lever. Schematic side views showing the configuration of the inner surface of the support portion, FIGS.
FIG. 8 is a side view showing various forms of locking and unlocking of the lever member. In the description of the first embodiment, the drawings and the reference numerals referred to in the description of the conventional example are used as appropriate.

The structure of the lever structure 81 is roughly classified into FIG.
10 includes a lever supporting portion 21 fixed to the upper case 52 and a lever member 82 rotatably attached to the lever supporting portion 21. As shown in FIGS. 1 to 5, the lever member 82 includes a flat operating portion 83, locking protrusions 84 provided on both sides thereof, and a pair of cam side plates 4 provided so as to extend from both sides of the operating portion 83. Is equipped with. Since the cam side plate 4 has a target structure, the same reference numerals are given to the two, and the description will be given. The guide groove 5 is formed on the outer surface from the end to the center as shown in FIGS. 1, 2 and 5. However, the bottom surface thereof is formed as an inclined surface 5A having an upward slope toward the center, and a bearing hole 6 is formed at the tip thereof.

The bearing hole 6 is used to rotatably support the lever member 82 on a lever support portion 21 described later. Around the bearing hole 6, a guide groove 7 for guiding the guide pin 59 described in the conventional example is formed in a semicircular shape. However, the guide groove 7 does not have the same radius with respect to the bearing hole 6, and the radius centered on the bearing hole 6 gradually decreases from the starting end (radius R1) to the ending end (radius R2) as shown in FIG. Is formed in. Most of the guide groove 7 is formed in a shape penetrating the cam side plate 4 as shown in FIGS. 1, 2, and 5. However, on the inner side surface of the cam side plate 4, a groove-shaped introduction portion 7 for introducing the guide pin 58 into the guide groove 7 (a concave bottomed groove rather than a through shape) is introduced.
A is formed. The communication shape between the introduction portion 7A and the guide groove 7 is as illustrated in FIGS. 1 and 5.

The overall shape of the lever member 82 has been described above, but the lever member 82 in the first embodiment has the following notable structure. That is, one side surface of the operation unit 83 (hereinafter, referred to as front surface for convenience of description) 8
3A is formed in a flat plate shape as shown in FIG.
Other side surface (hereinafter referred to as back surface for convenience of description) 83B
An outer peripheral frame 85A and a cross-shaped reinforcing rib 85B are formed on the outer peripheral frame. Therefore, the operating portion 83 does not flex and deform.

Locking projections 84 are provided on both sides of the operating portion 83, as shown in FIGS. Since the locking projections 84 are of the target structure, the same reference numerals are given to both of them and one of them will be described.
6A and 86B are formed. Then, the locking protrusion 84
2, one end, that is, the upper end side in FIG. 2, is connected to a part of the side surface of the operation portion 83, but at a position other than this connection portion 87, a gap 88 is formed between the operation portion 83 and the side surface. There is.

According to the construction of the operating portion 83, the entire locking projection 84 becomes elastic with the connecting portion 87 as a fulcrum. Therefore, when the locking projection 84 is pushed and urged from the outside, it deforms from the state shown by the solid line in FIG. 4 to the enlarged portion as shown by the imaginary line. Then, when the bias is released, the elasticity of the connecting portion 87 causes the elastic member to return to the position shown by the solid line. The deformation and return movement of the locking protrusion 84 can be elastically and repeatedly performed. Note that the locking and unlocking action with the lever support portion 21 will be described in detail following the description of the configuration of the lever support portion 21.

Next, the structure of the lever support portion 21 will be described. As shown in FIGS. 6 to 10, a pair of support side plates 22 are provided on the upper surface of the upper case 52 so as to face each other in a partition shape. A support shaft 23 and locking projections 24, 2 are provided on the inner surface of 22.
5 are provided. The support shaft 23 is inserted into the bearing hole 6 of the lever member 2 to rotatably support the lever member 2, and the lever member 2 is attached to the lever support portion 21 in the same manner as in the conventional example. It is performed using a tool. The locking projection 24 corresponds to the locking projection 74 described in the conventional example, but in the present embodiment, the locking projection 25 is also provided on the rear side. The locking projection 25 acts as a fixing member for positioning when the operation portion 83 of the lever member 82 is tilted backward and the guide pin 59 is introduced into the guide groove 7 from the introduction portion 7A as shown in FIG.

Next, the locking and unlocking action of the lever structure 81 will be described. When the locked state shown in FIG. 6 is viewed from the rear, the locking protrusions 84 formed on both sides of the operation portion 83 are locked to the locking protrusion 25 as shown in FIG. 7. Therefore, the lever member 82 is immovable both front and rear and right and left, the positions of the introducing portion 7A and the guide pin 59 do not change, and the guide pin 59 can be accurately introduced into the guide groove 7. By the way, in order to connect the connectors 55 and 57 as described above, the locking projections 84 and 25 are unlocked and the lever member 82 is moved in the direction of arrow A shown in FIG. You must urge upward A.

In the first embodiment, the operation portion 83 is set to the upper A
7, the locking protrusion 84, which was initially vertical as shown by an imaginary line in FIG. 7, is elastically deformed so as to close the gap 88 as shown by a solid line in FIG. Will be able to overcome. Therefore, the locking projections 84, 25 can be unlocked with a small force, and the operability is improved. Then, following the unlocking of the lever member 82, the arrow A
By rotating the guide pin 59 in the direction, the guide pin 59 is gradually pulled up by the guide groove 7. Note that FIG.
In FIG. 10, the operating portion 82 is shown in a sectional structure in order to clearly show the locking and unlocking action of the locking projection 84.

When the lever member 82 is tilted forward, the front surface 83A forming the operation portion 83 becomes the upper surface as shown in FIG. 9, and the rear surface 83B having the reinforcing ribs 85B and the like becomes the lower surface, so that the locking projections are formed. 84 abuts on the locking projection 24. When the operating portion 83 is further urged from this point, the locking projection 84 is pushed from the outside, and is elastically deformed so as to close the gap 88 as shown in FIG. This elastic deformation is
It becomes more noticeable by urging the operation portion 83, and when the locking projection 83 gets over the locking projection 24, it returns to the original shape as shown in FIG. In this state, the guide pin 59 is located at the end (radius R2) of the guide groove 7, and the connectors 55 and 57 are connected as in the conventional example. In the state shown in FIG. 10, the locking projections 83, 24 are not unlocked.
Therefore, the connection state of the connectors 55 and 57 becomes extremely stable.

On the other hand, when the locking shown in FIG. 10 is released, a finger is hung on the lower side of the operating portion 83 and urged upward.
As a result, the locking projection 84 is deformed so as to close the gap 88 again, and further deformed by continuing the urging, and the locking is released. Then, by urging the lever member 82 to rotate in the direction opposite to the arrow A, the connector 57 is gradually lowered and the connection with the connector 55 is cut off. Lever member 82
6 is locked in the state shown in FIG. 6, the guide pin 59 and the introduction portion 7A correspond to each other, and the lever structure 81 moves to the connector 5
7 can be completely separated. Here, when the locking projections 83 and 24 are unlocked, a force for deforming the locking projection 83 is required, and therefore the lever member 82 is unlikely to come off unexpectedly.

Next, a second embodiment of the lever structure of the electric junction box according to the present invention will be described with reference to FIGS. FIG. 11 is a perspective view showing the external structure of the lever member, FIG.
2 is a plan view of the lever member, FIG. 13 is a front view of the lever member, FIG. 14 is a side view of the lever member, FIG. 15 is a schematic side view showing a configuration of an inner side surface of the lever support portion, and FIGS.
FIG. 6 is a side view showing various forms of locking and unlocking of the lever member. In the description of the second embodiment,
The drawings and reference numerals referred to in the description of the conventional example and the first embodiment are appropriately incorporated.

The structure of the lever structure 1 is roughly classified into FIG.
As shown in FIG. 19, the lever support portion 21 fixed to the upper case 52 and the lever member 2 rotatably attached to the lever support portion 21 are provided. When the lever member 2 is viewed from above, as shown in FIGS. 11 and 12, a flat plate-shaped operating portion 3 and locking projections 3A and operating portion 3 provided on both sides thereof are provided.
Pair of cam side plates 4 provided so as to extend from both sides of the
Is equipped with. Since the cam side plate 4 has a symmetrical structure, the same reference numerals are given to the two, and the description will be made with reference to the outer surface of the guide groove 5 from the upper part toward the center as shown in FIGS.
Is formed, the bottom surface thereof is formed as an inclined surface 5A having an upward slope toward the center, and a bearing hole 6 is formed at the tip thereof.

The bearing hole 6 is for rotatably supporting the lever member 2 on a lever support portion 21 described later. Around the bearing hole 6, a guide groove 7 for guiding the guide pin 59 described in the conventional example is formed in a semicircular shape. However, the guide groove 7 does not have the same radius with respect to the bearing hole 6, and the radius centering on the bearing hole 6 gradually decreases from the start end (radius R1) to the end (radius R2) as shown in FIG. Is formed in. As shown in FIGS. 11 and 14, most of the guide groove 7 has a cam side plate 4
It is formed in a shape penetrating. However, the cam side plate 4
On the inner side surface of the groove 7, there is a groove-shaped introduction portion 7A for introducing the guide pin 58 into the guide groove 7.
Are formed. The communication shape between the introduction portion 7A and the guide groove 7 is as illustrated in FIGS. 14 and 15.

The overall shape of the lever member 2 has been described above, but the lever member 2 in the second embodiment has the following notable structure. That is, when the operation unit 3 is viewed from the front, as shown in FIG.
It is formed in a hollow shape by 1B and the short plate portions 11C and 11D. However, this hollow shape is not formed over the entire area of the inside of the operation portion 3, but rather the locking protrusion 3A.
Is formed in a range approximately equal to the width of the. To further describe the hollow shape, the locking projection 3 is located below the operating portion 3.
A groove 12 is formed in the vicinity of A so as to cross the operation portion 3. Then, the rear end side, which is formed in a hollow shape from the groove 12 toward the front end of the operation portion 3 and the cam side plate 4 is formed from the groove 12, is formed to be thick as in the conventional example (see FIGS. 23 and 24). Has been done. Therefore, the pair of cam side plates 4 are firmly integrated through the thick portion 3B of the operating portion 3, and can sufficiently bear the load when connecting the connectors 55 and 57 described in the conventional example.

On the other hand, by forming the front end side of the groove 12 in a hollow shape, the front side of the groove 12 has elasticity independently of the thick portion 3B. In this way, the operation unit 3
By imparting elasticity to a part of the lever,
The locking and unlocking with 1 can be performed very easily with good operability. Note that the locking and unlocking action with the lever support portion 21 will be described in detail following the description of the configuration of the lever support portion 21.

Next, the structure of the lever support portion 21 will be described. As shown in FIGS. 15 to 19, a pair of support side plates 22 are provided on the upper surface of the upper case 52 so as to face each other in a partition shape.
On the inner surface of each support side plate 22, a support shaft 23 and a locking projection 24,
25 are provided. The support shaft 23 is inserted into the bearing hole 6 of the lever member 2 to rotatably support the lever member 2, and the lever member 2 is attached to the lever support portion 21 in the same manner as in the conventional example. It is performed using a tool. The locking projection 24 corresponds to the locking projection 74 described in the conventional example, but in the present embodiment, the locking projection 25 is also provided on the rear side. The locking protrusion 25 acts as a fixing member for positioning when the operation portion 3 of the lever member 2 is tilted backward and the guide pin 59 is introduced into the guide groove 7 from the introduction portion 7A as shown in FIG.

Next, the locking and unlocking action of the lever structure 1 will be described. When the locked state shown in FIG. 15 is viewed from the rear, the locking projections 3A formed on both sides of the operation portion 3 are locked to the locking projections 25 as shown in FIG. Therefore, the lever member 2 is immovable both front and rear and right and left, the positions of the introducing portion 7A and the guide pin 59 do not change, and the guide pin 59 can be accurately introduced into the guide groove 7. By the way, in order to connect the connectors 55 and 57 as described above, the locking projections 3A and 25 are unlocked and the lever member 2 is moved in the direction of arrow A shown in FIG.
With respect to FIG. 16, the operating portion 3 must be biased upward A.

In the second embodiment, when the operating portion 3 is biased upward A, the initially long plate portion 11A and the locking projection 3A are bent and deformed in an arc shape as shown in FIG. . This deformation cannot occur if the operating portion is thick as in the conventional example, but in the second embodiment, from the groove portion 12 to the locking projection 3.
The portion of width A is elastically deformed. Moreover, the one long plate portion 11B on the side of the locking projection 3A has the other long plate portion 11A.
Deforms more. Therefore, the locking projections 3A and 25 can be unlocked with a small force, and the operability is improved.

By rotating the lever member 2 in the direction of arrow A after releasing the lock, the guide pin 59 is gradually pulled up by the guide groove 7. Then, when the lever member 2 is tilted forward, the other long plate portion 11A constituting the operation portion 3 is on the lower side, and the one long plate portion 11B is on the upper side, and the locking projection 3A is the locking projection. Abuts 24.
When the operating portion 3 is further urged from this point, the long plate portion 11B
The locking projections 3A formed on both sides thereof elastically deform in a bow shape as shown in FIG. This elastic deformation becomes more remarkable by urging the operating portion 3, and the locking projection 3
When A gets over the locking projection 24, it returns to the original shape, that is, the straight shape, as shown in FIG. In this state,
The guide pin 59 is located at the end of the guide groove 7 (radius R2), and the connectors 55, 5 are arranged in the same manner as in the conventional example and the first embodiment.
7 is connected. Here, the locking projection 3A is the locking projection 24
When overcoming the obstacle, the long plate portion 11B on the side of the locking projection 3A is deformed more than the other long plate portion 11A, and a force is applied in the direction of opening the groove 12, so that the end portion is easily deformed and the locking operation is performed. It's easy. In the state shown in FIG. 19, the locking projections 3A, 24 are not unlocked. Therefore, the connector 5
The connection state of 5,57 becomes extremely stable.

On the other hand, when the locking shown in FIG. 19 is released, a finger is put on the lower side of the operating portion 3 and urged upward. As a result, the long plate portion 11B and the locking projection 3A are flexibly deformed in a bow shape as shown by an imaginary line in FIG. 19, and further deformed by continuing the urging, and the locking is released. Then, by urging the lever member 2 to rotate in the direction opposite to the arrow A, the connector 57 is gradually lowered, and the connection with the connector 55 is cut off. When the lever member 2 is locked in the state shown in FIG. 15, the guide pin 59 and the introduction portion 7A correspond to each other, and the connector 57 can be completely separated from the lever structure 1. Here, when the locking projections 3A, 24 are unlocked, a force for deforming the two long plate portions 11A, 11B is required, and therefore the lever member 2 is unlikely to come off unexpectedly.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications can be made. For example, in the second embodiment, the locking protrusion 3A is formed so as to extend the long plate portion 11B, but it may be formed in the vertical middle portion of the outer surface of the short plate portions 11C and 11D. . In this case, the elasticity of the long plate portions 11A and 11B can be used evenly. Further, the locking protrusions formed on the support side plate 22 are not limited to two places, and may be formed in multiple stages. In this case, it is possible to cope with the difference in the distance between the connectors 55 and 57, and it is possible to use for multiple purposes. Further, any one of the locking projections 24 and 25 or the locking projection 84 may be formed in the locking recess, and the locking projection may be locked in the locking recess.

[0041]

As described above, the lever structure of the electric connection box according to the present invention is a side surface of the operation portion constituting the lever member, and a pair of support side plates for rotatably attaching the lever member. By providing the locking projections that are elastically bent and deformed at a position opposite to, the locking projections themselves are elastically deformed without reducing the rigidity of the operating portion. Therefore, by operating the rigid operation part with a small force, the lever member can be locked or unlocked by the locking projection formed at one end of the pair of supporting side plates, and the operability at the time of operation can be improved. Is improved. In addition, a click feeling can be obtained during the locking and unlocking operations, and locking and unlocking can be confirmed. The lever member, the operating portion, and the locking projections can be formed by integrally molding synthetic resin, and a low cost and highly reliable product can be provided.

Further, in the lever structure of the electric connection box according to the present invention, since the operating portion which has the locking projection for fixing the lever member and rotates the lever member is formed in a hollow shape,
The entire operation portion including the locking projection can be elastically deformed without reducing the rigidity of the locking projection itself. At this time, since the operation portion and the locking projection have elasticity due to the above-mentioned configuration, locking and unlocking of the locking projections can be performed lightly and reliably with a small force, and operability and workability are improved. It is possible to improve. Therefore, locking and unlocking of the locking projection formed on the operating portion and other locking projections can be performed with less resistance and with a click feeling, and workability and reliability are improved. be able to. In addition, the operation part consists of a long plate part and a short plate part
By forming it into a hollow shape, the operating part is particularly long.
The plate part flexes and becomes easy to deform, and its elasticity causes the locking protrusion
It becomes possible to lock and unlock the
Workability is improved.

Further, by providing locking projections on the side surfaces of the pair of support side plates for locking the locking projections when positioning the connector connection and positioning the lever member,
The position of the lever member when connecting the connector is easily fixed,
Workability is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a lever member showing a first embodiment of a lever structure of an electric junction box according to the present invention.

FIG. 2 is a perspective view showing a configuration of a lever member.

FIG. 3 is a plan view showing a configuration of a lever member.

FIG. 4 is a cross-sectional view showing a configuration of an operation section.

FIG. 5 is a side view showing a configuration of a lever member.

FIG. 6 is a schematic side view of a main part showing a configuration of a lever structure.

FIG. 7 is a side view showing a configuration of a lever support portion.

FIG. 8 is a side view of a lever structure showing unlocking of a locking projection.

FIG. 9 is a side view of the lever structure showing the locking action of the locking protrusions.

FIG. 10 is a side view of the lever structure showing a locked state of the locking protrusions.

FIG. 11 is a second lever structure of the electric junction box according to the present invention.
It is a partially expanded perspective view of the lever member which shows embodiment.

FIG. 12 is a plan view showing a configuration of a lever member.

FIG. 13 is a front view showing the configuration of a lever member.

FIG. 14 is a side view showing a configuration of a lever member.

FIG. 15 is a schematic side view of a main part showing the configuration of a lever structure.

FIG. 16 is a side view showing a configuration of a lever support portion.

FIG. 17 is a side view of the lever structure showing elastic deformation of the lever member.

FIG. 18 is a side view of the lever structure showing the locking action of the lever member.

FIG. 19 is a side view of the lever structure showing the unlocking action of the lever member.

FIG. 20 is an exploded perspective view showing an example of a conventional electrical junction box.

FIG. 21 is a perspective view showing a configuration of a conventional lever member.

FIG. 22 is a side view showing the configuration of a conventional lever support portion.

FIG. 23 is a schematic side view showing a connector connecting action of a conventional electric junction box.

FIG. 24 is a schematic side view showing a connector connection state of a conventional electric junction box.

[Explanation of symbols]

1,81 lever structure 2,82 Lever member 3,83 Operation unit 3A, 84 Locking protrusion 4 Cam side plate 5,7 guide groove 5A inclined surface 6 bearing holes 11A, 11B long plate 11C, 11D Short plate part 12 grooves 21 Lever support 22 Support side plate 23 spindle 24, 25 locking protrusion 51 electrical junction box 52 upper case 55, 57 connector 56 lower case 58 Guide pillar 59 Guide pin 86A, 86B slit 87 Connection 88 gap Rotating direction of A lever member

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-7-169529 (JP, A) JP-A-10-21990 (JP, A) JP-A-6-325833 (JP, A) JP-A-4- 218278 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 13/629 H02G 3/14

Claims (3)

(57) [Claims] 1. An upper case provided with a connector is provided with a lever support portion provided with a pair of support side plates, and a lever member rotatably supported by a support shaft formed on the pair of support side plates is provided. The lever member is provided on the lower case by rotating the lever member about the support shaft and guiding a guide pin provided on the lower case up and down by a guide groove formed on the lever member. A connector that moves up and down integrally with the pin is connected to and disconnected from the connector, and a locking projection provided on the operating portion of the lever member is locked to a locking projection provided on the supporting side plate at a connector connection position. In the lever structure of the electrical junction box, the locking protrusion is elastically bent and deformable at a position facing the pair of supporting side plates on the side surface of the operation portion. Lever structure of an electrical junction box that. 2. A lever member provided with a lever supporting portion having a pair of supporting side plates on an upper case provided with a first connector, and a lever member pivotally supported by a supporting shaft formed on the pair of supporting side plates. Is provided in the lower case by rotating the lever member about the support shaft and guiding a guide pin provided in the lower case up and down by a guide groove formed in the lever member. A second connector that moves up and down integrally with the guide pin is connected to and disconnected from the first connector, and a first locking protrusion provided on the operating portion of the lever member is connected to the connector. In the lever structure of the electric connection box locked to the second locking protrusion provided on the supporting side plate at the position, the operating portion of the lever member is hollow, and the operating portion is
The long plate part that is easily bent and deformed and the short plate part that is hardly bent and deformed.
The lever structure of the electric junction box is characterized by being formed more . 3. The locking projections for locking the locking projections for positioning the lever member at the time of connector connection positioning are provided on the side surfaces of the pair of support side plates. Lever structure of the described electrical junction box.