JP2006329410A - Lock structure for driving belt, and vehicular indicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular indicator, and a lock structure for a driving belt capable of positively carrying out fixing at a predetermined position, and capable of preventing breakage of a solenoid. <P>SOLUTION: The lock structure for the driving belt is provided with the driving belt 53, an outward side lock part 61a, a homeward side lock part 61b, a lock member 61 with a structure returning the outward side lock part 61a and the homeward side lock part 61b, an entering part 64 spreading a space between the outward side lock part 61a and the homeward side lock part 61b when it enters between the outward side lock part 61a and the homeward side lock part 61b, and the solenoid 63 advancing and retreating the entering part 64 by driving from a direction crossing a stretching direction of the driving belt 53. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for fixing a display unit that is attached to a vehicle and transmits information to a passenger by display.

In the prior art, a hole is formed in a disk-shaped drive gear, and a shaft in which a solenoid advances and retreats is inserted into the hole, so that the drive gear is fixed, and the angular position of the display interlocked with the drive gear is fixed and held. (For example, refer to Patent Document 1).
JP-A-5-96999 (page 1-7, all figures)

  However, conventionally, when a large force is applied to the display, there is a problem in that a lateral force intersecting the axial direction of the shaft is applied to the shaft of the solenoid and the solenoid is damaged.

  The present invention has been made paying attention to the above-mentioned problem, and the object of the present invention is to provide a drive belt locking structure and a vehicle that can be securely fixed at a predetermined position and can prevent a solenoid from being damaged. It is to provide an indicator.

  In order to achieve the above-described object, in the present invention, a drive belt having a tooth surface that engages with a drive gear on the inner periphery and stretches to form a forward path and a return path, and between the forward path and the return path of the drive belt. And has a tooth surface that engages with the tooth surface of the drive belt, and is movable between a position spaced from the forward path of the drive belt and a position engaged with the tooth surface of the forward path of the drive belt. A forward-side lock portion, and a tooth surface that engages with a tooth surface of the drive belt, positioned between the forward path and the return path of the drive belt and facing the forward-path side lock portion with a space therebetween, A return-side lock portion that is movable between a position spaced apart from the return path of the drive belt and a position that engages with a tooth surface of the return path of the drive belt; the forward-side lock portion; and the return-path-side lock portion. A return means for returning the drive belt to a position spaced from the drive belt; An entry member that pushes the gap between the forward pass side lock part and the return pass side lock part, and enters from a direction intersecting with the driving belt extending direction. And advancing / retreating driving means for advancing and retracting the member by driving.

  Therefore, in this invention, it can fix reliably in a predetermined position and can prevent a solenoid from being damaged.

  Hereinafter, embodiments for realizing the vehicle display device of the present invention will be described based on examples.

  First, the structure will be described.

  FIG. 1 is a side view of an activated state of the vehicle display device. FIG. 2 is an explanatory view showing the operation of the vehicle display. FIG. 3 is a partially enlarged view of the vehicle display. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a partially enlarged view of the vehicle display device in a locked state. 6 is a cross-sectional view taken along line BB in FIG.

As shown in FIGS. 1 to 6, the vehicle display device has a display main body 1, a monitor 2, a hinge part 3, a slide mechanism part 4, a drive mechanism part 5, and a lock mechanism part 6 as main components.
In the vehicle display device according to the first embodiment, when the monitor 2 is housed, the upper surface of the display body 1 and the back surface of the monitor 2 form approximately one surface. That is, in the storage state of the monitor 2 of the vehicle display device, it can be integrated with one surface of the instrument panel of the vehicle. Even if they are not integrated, they are stored in a low height so as not to obstruct the driver's field of view (see FIGS. 8 and 9).
A U-shaped main body bracket 11 having an opening on one side having a size corresponding to the bottom surface of the display main body 1 and side surfaces on both sides is provided.

Next, the slide mechanism unit 4 will be described.
The slide mechanism unit 4 includes a slit 111, a slider 41, and a shaft 42 as main components.
First, both ends are supported by the body bracket 11 and the shafts 42 are provided on both sides of the display body 1 so as to be long in the front-rear direction. Further, a long slit 111 is provided on the side surface of the main body bracket 11 in the front-rear direction. The slider 41 has a hole penetrating in the front-rear direction, and the shaft 42 is penetrated through the hole. As a result, the slider 41 can slide back and forth.

Here, the mounting structure of the monitor 2 will be described.
The monitor 2 is movably engaged with the slit 111 at the lower end so that the lower end can be moved along the slit 111 only by the length of the slit 111. Further, the lower end of the monitor 2 is rotatably attached to the slider 41, and the lower end of the monitor 2 is operated by the movement of the slider 41.
One end of the hinge part 3 is attached to both sides of the display main body 1 so as to be rotatable in the direction in which the monitor 2 is erected and stowed, and the opposite end is rotatably attached to the vicinity of the center of the side part of the monitor 2.
Further, the lower end portion of the side portion of the monitor 2 in an upright state is rotatably attached to the slider 41.

Next, the drive mechanism unit 5 will be described.
The drive mechanism unit 5 mainly includes pulleys 51 and 52, a drive belt 53, a drive motor 54, a control board, and a rotary shaft 55.
First, the rotation shaft 55 is provided so as to penetrate the side surfaces on both sides of the main body bracket 11 at the front and rear positions. Pulleys 51 are attached to both ends of the rear rotating shaft 55, and pulleys 52 are attached to both ends of the front rotating shaft 55.
A tooth surface that engages with the tooth surface of the drive belt 53 is provided on the outer periphery of the pulleys 51 and 52.
The drive belt 53 is provided on the left and right sides of the inner periphery with a tooth surface like a rack and spanned around the front and rear pulleys 51 and 52.
A control board (not shown) and a drive motor 54 for driving the rear rotary shaft 55 are provided on the plane of the main body bracket 11.
Further, a part of the forward path on the upper side of the drive belt 53 is attached to the slider 41, and the slider 41 is moved by the drive belt 53.

Next, the lock mechanism unit 6 will be described.
The lock mechanism unit 6 mainly includes a lock member 61, a fixing unit 62, a solenoid 63, an entry unit 64, and a limiting unit 65.
As shown in FIGS. 3 and 5, the lock member 61 is configured by a substantially U-shaped portion, a vertically narrow portion, and a vertically thick portion. The cantilever part above the substantially U-shaped part is used as the forward lock part 61a, and a tooth surface that engages with the tooth surface of the drive belt 53 is provided on the upper surface thereof. Further, the cantilever portion below the substantially U-shaped portion is used as the return path side lock portion 61b, and a tooth surface engaging with the tooth surface of the drive belt 53 is provided on the lower surface thereof.
A narrow portion in the vertical direction is referred to as an attachment portion 61c, and a thick portion in the vertical direction is referred to as a counter portion 61d.
In the first embodiment, industrial resin is used as the material of the lock member 61.
The fixing part 62 protrudes laterally from two upper and lower portions of the side part of the main body bracket 11, and has a claw protruding inwardly facing the fixing part 62.

The solenoid 63 advances and retracts the output shaft by electromagnetic force.
The entry portion 64 has a tapered shape that increases in diameter from the distal end toward the proximal end.

Here, a structure for attaching the lock mechanism 6 to the display body 1 will be described.
The lock member 61 is inserted between the fixed portions 62 at a narrow portion in the vertical direction. Then, the lateral direction of the lock member 61 is fixed by the opposed claws, and the front wall surface of the thick portion and the rear wall surface of the fixing portion 62 are vertically contacted to fix the front-rear rotation direction of the lock member 61.
The solenoid 63 is fixed to the inside of the side surface of the main body bracket 11 so that the output shaft penetrates the side surface of the main body bracket 11 laterally, and the entry portion 64 is attached to the protruding portion. To do.
The restricting portion 65 is located on the outer periphery of the drive belt 53 that is widened by the lock member 61, and normally prevents the drive belt 53 from contacting the drive belt with a space therebetween, and the movement of the drive belt 53 to widen the space between the forward path and the return path is within a predetermined range. Try to keep it down.

Next, the operation will be described.
[Monitor startup and storage]
In order to shift to the start-up state when the vehicle display is in the retracted state, the drive motor 54 is driven. Then, the driving force is transmitted by the rotating shaft, the left and right rear pulleys 51 are driven, and the left and right driving belts 53 are rotated.
When the drive belt 53 rotates, the slider 41 moves forward along the shaft 42 and the slit 111. Then, since the lower end of the monitor 2 and the slider 41 are rotatably attached, the lower end of the monitor 2 moves forward along the slit 111. Here, the hinge portion 3 has a rear end rotatably attached to the display body 1 and a front end rotatably attached to the side surface of the monitor 2. Is added, since the movement of the hinge part 3 is allowed only to rotate around the rear end, the connection part with the monitor 2 is pushed upward. That is, the movement causes the monitor 2 to stand up (see FIG. 8).

  Further, when the drive belt 53 is rotated and the slider 41 is moved rearward from the state where the monitor 2 stands, the lower end of the monitor 2 moves rearward along the slit 111, so that the monitor 2 is connected to the hinge portion 3. It will rotate with respect to the attachment part, and it will be in a stowed state so that it may close with a display surface down (refer FIG. 9).

[Locking action]
In the first embodiment, the lock for fixing the monitor 2 is performed in the stowed state and the standing state which is the use state.
As shown in FIG. 7, the lock is turned on at times other than the time when there is a margin before and after the drive time of the drive motor 54.
The drive of the solenoid 63 is controlled by a control board (not shown).
When the solenoid 63 is turned on, the output shaft advances by adjusting the generated electromagnetic force and the internal spring force. Since the solenoid 63 is disposed so that the axial direction thereof is orthogonal to the drive belt 53, the output shaft advances from the direction in which the drive belt 53 is stretched toward the outside at a right angle.
A taper-shaped entry portion 64 is attached to the traveling output shaft, and enters between the forward pass side lock portion 61a and the return pass side lock portion 61b of the lock member 61.

Then, as the approach portion 64 advances, the diameter of the forward path side lock portion 61a and the backward path side lock portion 61b increases, so that the distance between the forward path side lock portion 61a and the backward path side lock portion 61b is increased (see FIG. 5, see FIG.
As a result, the forward path side lock portion 61a approaches the forward path of the drive belt 53, and the tooth surface of the forward path side lock portion 61a and the forward tooth surface of the drive belt 53 are engaged with each other.
Further, the return path side lock portion 61b approaches the return path of the drive belt 53 and engages so that the tooth surface of the return path side lock portion 61b meshes with the tooth surface of the return path of the drive belt 53.

Furthermore, the distance between the forward path side lock part 61a and the backward path side lock part 61b is increased and the tooth surface is strongly engaged by being pressed against the drive belt 53.
Further, the force that the forward path side locking portion 61a and the backward path side locking portion 61b expand from the inner side to the outer side of the driving belt 53 is applied to the driving belt 53. A restricting portion 65 is provided on the outer periphery of the driving belt 53 in this portion. Since they are arranged, the extension of the drive belt 53 in the outer circumferential direction is restricted, and the tooth surfaces are engaged more strongly.
In this state, both the forward path and the return path of the drive belt 53 cannot be rotated due to the engagement of the tooth surfaces. Therefore, the monitor 2 attached via the slider 41 is securely fixed in a predetermined standing state or stored state.

  Furthermore, when the tooth surface of the drive belt 53 and the tooth surfaces of the forward pass side lock portion 61a and the return pass side lock portion 61b are shifted at the lock position, the drive belt 53 tends to expand further to the outer peripheral side. However, since the movement is restricted by the outer peripheral side restricting portion 65, the force for engaging the tooth surface becomes stronger, and when the deviation is small, the deviation is corrected by this force. The tooth surfaces will mesh. When the deviation is large and the deviation cannot be completely corrected, the position is fixed at the position, but the external force such as vibration is applied, so that the tooth surface is corrected to mesh. Even in such a case, the fixing is surely performed only by causing a slight misalignment.

[Easy assembly]
In the vehicle display device according to the first embodiment, the lock member 61 is simply inserted between the two members of the fixing portion 62 and the assembly is completed. Very easy assembly.
In this assembled state, as shown in FIG. 4, the forward lock portion 61a and the return lock portion 61b of the lock member 61 are positioned by contacting a part of the taper of the entry portion 64. . Even in the case where the abutment portion 64 is not brought into contact, positioning is achieved if the entry portion 64 enters and abuts between the forward pass side lock portion 61a and the return pass side lock portion 61b.
Therefore, a margin can be given to the positional accuracy at the time of assembly, and the assembly becomes easier.

[Solenoid damage prevention]
When a large force is applied to the monitor 2, when the monitor 2 receives a force in the standing or storage direction, the slider 41 is forcibly moved and a large force is generated to rotate the drive belt 53. The drive belt 53 is advantageous because it has a certain degree of elasticity, but if the limit is exceeded, the lock member 61 will be damaged. At this time, even if the forward pass side lock portion 61a and the return pass side lock portion 61b of the lock member 61 are damaged and moved in the moving direction of the drive belt 53, it is difficult to apply force to the entry portion 64. Therefore, in this case, the solenoid 63 is extremely unlikely to be damaged.

  Therefore, in the repair in this case, the replacement is limited to the lock member 61 and it is not necessary to replace the solenoid 63, which is very advantageous compared to the conventional case where the solenoid is damaged.

Next, the effect will be described.
In the vehicle display device of the present embodiment, the following effects can be obtained.
(1) A driving belt 53 having a tooth surface that engages with the pulleys 51 and 52 on the inner periphery and constituting a forward path and a return path, and is positioned between the forward path and the return path of the drive belt 53. An outward path-side lock portion 61a that has a tooth surface that engages with the tooth surface of the drive belt 53 and is movable between a position spaced from the forward path of the drive belt 53 and a position that engages with the tooth surface of the forward path of the drive belt 53; The drive belt 53 has a tooth surface that engages with the tooth surface of the drive belt 53 and is positioned so as to be opposed to the forward path side lock portion 61a between the forward path and the return path of the drive belt 53. The distance between the drive belt 53 and the return side lock portion 61b, the forward pass side lock portion 61a, and the return pass side lock portion 61b, which are movable between a position spaced apart from each other and a position where the drive belt 53 engages with the tooth surface of the return path. The return path lock unit 61a and the return side When the side lock portion 61b enters between the lock member 61 having a cantilever structure and the forward pass side lock portion 61a and the return pass side lock portion 61b, the distance between the forward pass side lock portion 61a and the return pass side lock portion 61b is increased. Since the entry portion 64 and the solenoid 63 that drives the entry portion 64 forward and backward from the direction intersecting the direction in which the drive belt 53 is stretched are provided, the entry portion 64 can be reliably fixed at a predetermined position, and the solenoid can be prevented from being damaged. Can do.

  (2) A lock member 61 having a connecting portion for connecting the forward path side lock part 61a and the return path side lock part 61b, which are two parallel cantilever members, and a lock part 61b is provided and locked. A configuration using a lock member that is extremely cost-effective because the attachment portion 61c provided by extending the connection portion of the member 61 is fixed between the forward path and the return path of the drive belt 53 and returned by the elasticity of the cantilever member. By this, it can be surely fixed at a predetermined position, and damage to the solenoid can be prevented.

  (3) Since the restricting portion 65 that restricts the movement of the driving belt 53 in the outer circumferential direction when the distance between the forward locking portion 61a and the backward locking portion 61b is expanded by the entry portion 64 is provided, the driving belt 53 is provided. And the engagement with the forward path side lock part 61a and the backward path side lock part 61b can be made more reliable.

  (4) In the vehicle display device that enables the monitor 2 to stand upright and the storage state in which the monitor 2 is tilted down by the slide mechanism 4 and the link mechanism, any one of (1) to (3) The drive belt 53 is provided with a lock structure, and the slide mechanism 4 has a slider 41 attached to a part of the drive belt 53 stretched long in the front-rear direction, and the link mechanism stands and stores a part of the monitor 2. Since the monitor 2 is supported by the hinge portion 3 so as to be rotatable in the direction and the lower end of the monitor 2 is attached to the slider 41, the monitor 2 can be securely fixed at a predetermined standing position and storage position, and a large force is applied to the monitor 2. Even in this case, it is possible to prevent damage to the solenoid, which is relatively expensive in the vehicle display.

  (5) The lock member 61 extends to the opposite side of the forward pass side lock part 61a and the return pass side lock part 61b. The forward pass side lock part 61a and the return pass side lock part 61b, the substantially U-shaped part constituting the connection part. And includes a mounting portion 61c provided with a recessed portion and a counter portion 61d. The locking member 61 is engaged with the recessed portion of the mounting portion 61c, and the engagement between the claw portion and the recessed portion causes the locking belt 61 to move forward and backward. Since the lock member 61 is assembled only by pressing the lock member 61 between the forward path and the return path of the drive belt 53, the vehicle is very easy to assemble and replace parts. Can be used as an indicator.

  (6) The entry portion 64 has a distal end narrower than between the forward pass side lock portion 61a and the return pass side lock portion 61b, and becomes thicker between the forward pass side lock portion 61a and the return pass side lock portion 61b as it goes to the proximal end side. In order to push the gap between the forward pass side lock part 61a and the return pass side lock part 61b as the shape enters and enters, the forward pass side lock part 61a and the return pass side lock part 61b can be positioned by the entrance part 64, Assembling can be facilitated, and the solenoid 63 can be prevented from being affected when the lock member 61 is damaged.

(Other embodiments)
As described above, the embodiment of the present invention has been described based on the first embodiment. However, the specific configuration of the present invention is not limited to the embodiment, and design changes and the like within the scope of the invention are not limited. Even if it exists, it is included in this invention.
For example, the forward path side lock part and the return path side lock part may be provided separately.
The return means may use an elastic body.
The advance / retreat driving means may be an actuator other than a solenoid, such as a motor.
In the lock member having two cantilever members, another return means such as an elastic body may be provided as the return means.
The drive belt is preferably provided on the left and right sides of the monitor 2, but may be provided on one side.

  The drive belt lock structure and the vehicle display of the present application can be used for a display of a moving body such as a railway vehicle or a ship. It can also be used for an opening / closing part of a device, an opening / closing part of a building, and the like.

It is a side view of the starting state of the display for vehicles. It is explanatory drawing which shows operation | movement of the display for vehicles. It is a partial enlarged view of the display for vehicles. It is AA sectional drawing of FIG. It is a partially enlarged view of the vehicle display device in a locked state. It is BB sectional drawing of FIG. It is a time chart of the drive signal of a solenoid and a motor. It is a perspective view of the standing state of a monitor. It is a perspective view of the accommodation state of a monitor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display body 11 Main body bracket 111 Slit 2 Monitor 3 Hinge part 4 Slide mechanism part 41 Slider 42 Shaft 5 Drive mechanism part 51 Pulley 52 Pulley 53 Drive belt 54 Drive motor 55 Rotating shaft 6 Lock mechanism part 61 Lock member 61a Outward side lock Part 61b return side lock part 61c attachment part 61d counter part 62 fixing part 63 solenoid 64 entry part 65 restriction part

Claims (6)

A drive belt having a tooth surface that engages with the drive gear on the inner periphery, and extending and configuring a forward path and a return path;
Positioned between the forward path and the return path of the drive belt, and having a tooth surface engaged with the tooth surface of the drive belt, spaced from the forward path of the drive belt, and a tooth surface of the forward path of the drive belt A forward locking part that is movable between engaging positions;
Between the forward path and the return path of the drive belt and facing the forward path side lock portion with a gap, and having a tooth surface engaged with the tooth surface of the drive belt, A return-side lock portion movable between a position spaced apart and a position engaged with the tooth surface of the return path of the drive belt;
A return means for returning the forward path side lock part and the return path side lock part to a position spaced apart from the drive belt;
When entering between the forward path side lock part and the return path side lock part, an entry member that expands the interval between the forward path side lock part and the return path side lock part,
Advancing / retracting driving means for driving the advancing member back and forth from a direction crossing the extending direction of the driving belt;
A drive belt lock structure comprising: The drive belt lock structure according to claim 1,
A locking member having a connecting portion for connecting the two cantilever members in parallel and the both cantilever members;
The connecting portion of the lock member is fixed between the forward path and the return path of the drive belt, and both the cantilever members constitute the forward path side lock section and the return path side lock section,
The elasticity of the cantilever member was used as the return means.
A drive belt lock structure characterized by that. In the drive belt lock structure according to claim 1 or 2,
Provided with a restricting means for restricting movement of the drive belt in the outer peripheral direction when the distance between the forward path side lock part and the backward path side lock part is expanded by the entry member;
A drive belt lock structure characterized by that. Standing state where the display panel stands up easily and
The storage state in which the display panel is collapsed,
In the vehicle display device that is movable by the front and rear sliding means and the link mechanism,
A drive belt lock structure according to any one of claims 1 to 3 is provided,
The sliding means has a slider attached to a part of the driving belt stretched long in the front-rear direction,
The link mechanism is a structure in which a part of the display panel is erected and rotatably supported in the storage direction, and the lower end of the display panel is attached to the slider.
A vehicle display device characterized by that. The vehicle display device according to claim 4,
The locking member is
A substantially U-shaped portion constituting the forward path side lock portion and the return path side lock portion, the connection portion;
The connecting portion extends to the opposite side of the forward pass side lock portion and the return pass side lock portion, and an engagement portion provided with a recessed portion;
Consists of
A fitting that engages with the recessed portion of the engaging portion and that fixes the lock member between the forward path and the return path of the driving belt by engaging the claw portion and the recessed portion;
The lock member is assembled only by pressing the lock member between the forward path and the return path of the drive belt.
A vehicle display device characterized by that. In the vehicle display device according to claim 4 or 5,
The entry member has a tip that is narrower than between the forward pass side lock portion and the return pass side lock portion, and is thicker between the forward pass side lock portion and the return pass side lock portion as it goes to the base end side, As it enters, the space between the forward path side lock part and the backward path side lock part is expanded.
A vehicle display device characterized by that.

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