JP2005240361A - Battery cover holding clasp of battery vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery cover holding clasp of a battery vehicle capable of preventing the engagement of a clamp ring with an interlocked member from being automatically released by the deformation of the clamp ring. <P>SOLUTION: An energizing means 22 of a flat spring energizing an operating lever 15 in the locking direction is supported with the operating lever 15 by abutting on the front end section of a bracket 13. After the front end section 19 of the clamp ring 16 has been thereby engaged with the interlocked member 18 connected to a battery cover 10 (11), when the operating lever 15 is rotated in a locking position, the operating lever 15 is held on the locking position by the energizing means 22, and the engagement of the front end section 19 of the clamp ring 16 with the interlocked member 18 is prevented from being automatically released. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a buckle used to hold a battery cover of a battery-powered vehicle in a closed position.

  As disclosed in Patent Document 1 to be described later, in a battery-powered vehicle including a battery storage chamber having one lateral side surface opened as a battery inlet / outlet, a member (battery cover) for opening and closing the battery inlet / outlet of the battery storage chamber A buckle may be used to hold the in the closed position.

  This buckle has a bracket fixed to the outer surface of the side wall of the battery storage chamber, an operation lever whose base end is rotatably supported by the bracket via a pin on the vertical axis, and a base end near the pin. A clamp ring that is rotatably supported by the operation lever and that engages a hooked member formed in a hook shape at the tip is provided.

  The clamp ring is formed, for example, by bending a wire made of spring steel. After engaging the clamp ring with a locked member connected to the battery cover, a direction in which the base end portion approaches the side wall (hereinafter, referred to as “clamp ring”). When the operation lever is rotated in the locking direction, the opposite direction is referred to as the unlocking direction.) When the operation lever is rotated, the distance between the distal end portion and the proximal end portion is expanded and contracted by elastic deformation of the clamp ring.

  When the distal end and the base end of the clamp ring are aligned with the pin, the elastic deformation of the clamp ring is maximized. When the base end of the clamp ring is located closer to the side wall than the pin, the clamp is clamped. The operation lever is urged in the locking direction by the elastic restoring force of the ring, and the operation lever is held at a position where the clamp ring is in a natural state (hereinafter referred to as a locking position).

  However, this clamp ring is gradually extended by repeating the rotation of the operation lever at the time of inspection and replacement of the battery. Eventually, the operation lever naturally rotates in the unlocking direction due to body vibration or the like, and the locked member There is a problem that the clamp ring engaged with the detachment becomes disengaged.

In order to solve this problem, the above-mentioned Patent Document 1 is provided with a lock plate that slides up and down, and the buckle and the lock plate are double-hanged on the locked portion, whereby the clamp ring of the buckle is engaged. A technique has been disclosed in which a clamp plate is held in a predetermined position by a lock plate even when it naturally deviates from a stop member.
Japanese Utility Model Publication No.59-115567

  However, in this prior art, since it is necessary to assemble a lock plate separate from the buckle on the side wall of the battery storage chamber, component management becomes complicated, and parts are assembled to the battery storage chamber including alignment. However, there is a problem that the number of man-hours for assembling the parts into the battery storage chamber is increased, and there is a problem that the manufacturing cost is considerably increased by synergizing these problems.

  Therefore, the present invention provides a buckle for holding a battery cover of a battery-powered vehicle, which can prevent the clamp ring from extending and the engagement between the locked member and the clamp ring being naturally disengaged with a simple configuration. The purpose is to do.

  In order to achieve this object, the present invention provides a bracket that is fixed to the outer surface of the side wall of the battery storage chamber, an operating lever that is rotatably supported by the bracket via a pin on the vertical axis, and a base end portion of which is the pin. A clamp ring that is supported by the operating lever so as to be rotatable about the longitudinal axis in the vicinity of the battery, and a front end of the clamp ring is connected to a battery cover that opens and closes an open side surface of the battery storage chamber. A battery type in which an engagement state between the distal end portion of the clamp ring and the locked member is formed by bringing the proximal end portion of the clamp ring closer to the side wall than the pin after engaging the stop member. The battery cover holding buckle of the vehicle employs technical means characterized by being provided with a biasing means that is supported by the operating lever and biases the operating lever to a predetermined locking position.

  According to this, when the operating lever that receives the vehicle body vibration rotates in the unlocking direction from the locking position, the urging means is elastically deformed, and the operating lever is returned to the locking position by the urging force, so that the operating lever rotates greatly. Return to the locked position before. As a result, the operation lever is prevented from rotating in the unlocking direction beyond the position of the operation lever (hereinafter referred to as a critical position) when the tip and base ends of the ring and the pin are aligned in a straight line. It is prevented that the tip of the clamp ring is disengaged from the locked member and the buckle is unlocked naturally.

  Further, according to the present invention, since the urging means is supported by the operation lever, it is not necessary to manage parts independent from the buckle, the parts management can be simplified, and the urging means is independent from the buckle. Since there is no need to assemble the parts in the side wall of the battery storage room, the number of parts to be attached to the battery storage room is reduced, the work of assembling the parts into the battery storage room is simplified, and the parts to the battery storage room are reduced. Assembly time can be reduced.

  Furthermore, according to the present invention, the buckle can be unlocked easily and in a short time by the same operation as a general buckle unlocking operation in which the operation lever is rotated in the unlocking direction against the biasing means. The battery can be maintained or the battery can be taken out of the battery storage chamber.

  In addition, since the configuration is such that the urging means is only added to the buckle, the configuration is simple, the number of parts is small, and it can be implemented at low cost, and failure is unlikely to occur.

  As the urging means, a leaf spring or the like that comes into contact with the tip of the bracket can be used.

  As described above, according to the present invention, since the operation lever is urged to the predetermined locking position by the urging means, the operation lever that has received the vehicle body vibration moves from the locking position beyond the critical position to the unlocking direction. It is possible to prevent the clamp ring from being naturally disengaged from the locked member.

  Further, according to the present invention, since the urging means is supported by the operation lever, it is not necessary to manage the urging means as a component independent of the buckle, and an effect of simplifying component management can be obtained. it can.

  Furthermore, since the urging means is supported by the operation lever, it is not necessary to assemble the urging means as a part independent of the buckle on the side wall of the battery storage chamber, and the number of parts to be attached to the battery storage chamber can be reduced. It is possible to obtain an effect of reducing, an effect of simplifying a part assembling work to the battery storage chamber, an effect of reducing the number of parts assembling steps to the battery storage chamber, and the like.

  In addition, according to the present invention, a state where the buckle can be unlocked in a short time and the battery can be taken out from the battery storage chamber by operating the operation lever in the unlocking direction against the biasing means. The effect which can be made can also be acquired.

  In addition, according to the present invention, the above-described biasing means is simply added to a normal buckle, so that the configuration is simple, the number of parts is small, it can be implemented at low cost, and failure is unlikely to occur. An effect can also be obtained.

  Hereinafter, a battery cover holding buckle for a battery-powered vehicle according to an embodiment of the present invention will be specifically described with reference to the drawings. In the drawings, FIG. 1 is a transverse plan view of one embodiment of the present invention in a locked state, FIG. 2 is a front view thereof, and FIG. 3 is a perspective view of a battery-powered vehicle to which one embodiment of the present invention is applied. It is.

  As shown in FIG. 3, this battery-powered vehicle is a reach type battery forklift, and is supported by a vehicle body frame 1 and left and right straddle legs 2 provided at a front portion of the vehicle body frame 1 so as to be movable forward and backward. The cargo handling device 3 is provided.

  In addition, this battery-powered vehicle includes a front wheel 4 called a left and right road wheel supported on the front end of the straddle leg 2 so as to be rotatable around a left and right axis, a drive wheel supported on the left rear part of the body frame 1, The rear wheel is called and the universal wheel supported on the right rear portion of the vehicle body frame 1 is grounded to run.

  A travel motor that drives the rear wheels, a power train that transmits the driving force of the travel motor to the rear wheels, a hydraulic oil tank, an electric hydraulic pump, and a steering that steers the rear wheels from the left rear portion to the upper portion of the body frame 1 A first device storage chamber 5 for storing a motor, a control unit and the like is provided, and a cockpit 6 on which a driver stands is provided on the right side of the first device storage chamber 5.

  A battery storage chamber 7 that stores the battery B in front of the first device storage chamber 5 and the cockpit 6 and a second device storage chamber 8 that stores an electromagnetic proportional valve, a charger, and the like for operating the cargo handling device 3 are provided. It is done.

  The battery storage chamber 7 is a rectangular space defined by, for example, a bottom plate, a front side wall 9, a rear side wall, a top plate, and a left side wall. A right side surface opened as a battery inlet / outlet is formed by upper and lower battery covers 10 and 11. Opened and closed. For example, the upper battery cover 10 is opened when maintenance work is performed with the battery B stored in the battery storage chamber 7, and the battery covers 10, 11 are removed when the battery B is removed from the battery storage chamber 7 such as replacement of the battery B. Is released.

  Each of the battery covers 10 and 11 is supported by a buckle 12 at a position where the battery inlet / outlet is closed, and the rear edge of each battery cover 10 and 11 is supported on the rear side wall of the battery storage chamber 7 through a hinge so as to be rotatable around the vertical axis. The

  As shown in FIGS. 1 and 2, each stage of the buckle 12 includes a bracket 13 fixed to the front surface of the front side wall 9 by welding, for example, and a pin 14 on the vertical axis on the bracket 13, as in the prior art. And an operation lever 15 that is rotatably supported via a clamp ring 16.

  The clamp ring 16 is formed, for example, by bending a spring steel wire into a square shape, and includes a base end portion 17 that is supported by the operation lever 15 in the vicinity of the pin 14 so as to be rotatable about a vertical axis, and the battery. A distal end portion 19 that engages with a hook-shaped locked member 18 that is connected to the cover 10 (11), and a spring portion 20 that connects the distal end portion 19 to the proximal end portion 17 are provided.

  The spring portion 20 is bent in a square shape in plan view (FIG. 1) in order to facilitate elastic deformation of the clamp ring 16.

  Now, the buckle 12 is supported by the operation lever 15 and comes into contact with the distal end portion 21 of the bracket 13 to urge the operation lever 15 to the locking position. It differs from the conventional buckle in that an urging means 22 is provided.

  As shown in the plan view of FIG. 4, in order to engage the tip 19 of the clamp ring 16 with the locked member 18, the tip 19 can bypass the hook 18 a of the locked member 18. It is necessary to rotate the operating lever 15 in the unlocking direction. In this state, the urging means 22 is received by the end surface 13a of the bracket 13 on the locked member side, and urges the operation lever 15 in the locking direction.

  From this state, as shown in the plan view of FIG. 5, when the tip 19 is moved into the tip of the locked member 18, the operation lever 15 moves in the locking direction. The position where the urging means 22 abuts on the bracket 13 is from the end surface 13a on the locked member side to the ridgeline P1 where the corner surface 13b of the bracket tip 21 and the end surface 13a on the locked member side intersect, The surface 13b, the chamfered surface 13b, and the tip surface 13c move in order to the ridgeline P2. Further, during the movement of the operation lever 15, a change in strength of the urging force of the urging means 22 occurs, but the direction in which the urging means 22 urges the operation lever 15 is changed to the locking direction. Absent.

  The locked member 18 is formed in a shape that allows the clamp ring 16 to rotate smoothly around the distal end portion 19 of the clamp ring 16 engaged so as to be inscribed in the locked member 18.

  When the operation lever 15 is moved in the locking direction from the state shown in FIG. 5, the spring portion 20 is elastically deformed, so that the distance between the proximal end portion 17 and the distal end portion 19 of the clamp ring 16 is increased. As shown in the plan view, when the operation lever 15 is positioned at a critical position where the proximal end portion 17 and the distal end portion 19 of the clamp ring 16 and the pin 14 are aligned, the distance is maximized.

  In this critical position, the urging force (elastic restoring force) of the clamp ring 16 is maximum, but the operation lever 15 is not urged in the unlocking direction or the locking direction. On the other hand, the urging means 22 is received by the ridgeline P2 and elastically deformed into a shape that urges the operation lever 15 in the locking direction. Therefore, when the operating lever 15 is released at this critical position, the operating lever 15 rotates in the locking direction by the urging force of the urging means 22.

  Since the urging means 22 urges the operating lever 15 to the locking position where the clamp ring 16 is in the natural state, as shown in FIG. 1, the urging means 22 is up to the locking position where the clamp ring 16 returns to the natural state. When the operation lever 15 is rotated, the urging means 22 is also in a natural state, and becomes a flat plate shape in contact with the front end surface 13 c of the bracket 13.

  Here, it is assumed that the buckle 12 is subjected to vehicle body vibration and the operation lever 15 is rotated in the unlocking direction.

  In this state, the distance between the distal end portion 19 and the proximal end portion 17 of the clamp ring 16 slightly increases from that in the natural state, and an urging force for returning the operation lever 15 to the locked position is generated in the clamp ring 16. . Further, the urging means 22 is bent with the front end surface 13c or the ridgeline P2 of the bracket 13 as a support, and an urging force is generated in a direction to return the operation lever 15 to the locking position.

  The urging force of the clamp ring 16 and the urging means 22 instantaneously returns the operating lever 15 to the locking position, and the operating lever 15 is held in the locking position without rotating in the unlocking direction. It becomes a state.

  Further, even when the clamp ring 16 extends and the engagement between the distal end portion 19 of the clamp ring 16 and the locked member 18 is loosened (raised), the operation lever 15 has the biasing means 22. Therefore, the distal end portion 19 of the clamp ring 16 is not detached from the locked member 18.

  In this embodiment, as long as the operating lever 15 is held in the locked position, the clamp ring 16 can be extended even if the spring portion 20 of the clamp ring 16 extends linearly as shown by a two-dot chain line in FIG. The wire length of the spring portion 20 is designed so that the tip end portions 19 of the 16 do not dissociate from the locked member 18.

  Further, the structure for supporting the urging means 22 on the operation lever 15 is not particularly limited, but here, a structure in which the urging means 22 is fixed to the operation lever 15 using two rivets 23 is adopted.

  Further, the urging force of the urging means 22 only needs to be such that the operation lever 15 can be prevented from rotating, so that the burden on the operation of holding the operation lever 15 with the hand and rotating it in the unlocking direction increases. Instead, the clamp ring 16 can be easily disengaged from the locked member 18 in a short time by grasping the operating lever 15 and rotating it in the unlocking direction from the position shown in FIG. be able to.

  As a result, according to this embodiment, since the operation lever 15 is urged in the locking direction by the urging means 22, there is no possibility that the clamp ring 16 is disengaged from the locked member 18, and the buckle 12 is naturally formed. There is no possibility that the battery covers 10 and 11 will be opened.

  Further, according to this embodiment, since the biasing means 22 is supported by the operation lever 15, a member independent of the buckle 12 at the part management stage, and a bolt for attaching this to the front side wall 9 of the battery storage chamber 7. There is no need to manage the parts, the parts management becomes simple and the parts management cost can be reduced.

  Furthermore, according to this embodiment, it is not necessary to attach a separate member independent of the buckle 12 when the buckle 12 is attached to the front side wall 9 of the battery storage chamber 7. As a result, the number of parts to be attached to the front side wall 9 is reduced, the number of parts attaching work to the front side wall 9 can be reduced, the part attaching work is simplified, and the part attaching work time is shortened. And these can synergize and it can aim at a significant cost reduction.

  In addition, this embodiment has a configuration in which the biasing means 22 is simply supported by the conventional buckle operating lever 15, so the number of parts is small, the configuration is simple and can be implemented at low cost, and failure is unlikely to occur. .

  FIG. 7 is a cross-sectional plan view of a battery cover holding buckle of a battery-powered vehicle according to another embodiment of the present invention. This embodiment is configured in the same manner as the previous example except that the corner surface 13b of the bracket 13 is omitted.

  According to this embodiment, the shape of the bracket 13 can be simple and inexpensive, and the biasing means 22 that is more flexible than the previous example can be used.

  Other actions and effects of this embodiment are the same as those of the previous example.

  The urging means 22 in each of the above embodiments is constituted by a leaf spring. However, the urging means of the present invention is not limited to the leaf spring, and for example, an urging means comprising a helical spring can be used. is there.

  The present invention is widely applied to a buckle provided to hold a battery cover in a battery-operated vehicle in a closed position.

It is a top view of the present invention. It is a front view of the present invention. It is a perspective view of a battery type vehicle to which the present invention is applied. It is a top view of the present invention. It is a front view of the present invention. It is a top view of the present invention. It is a front view of the present invention.

Explanation of symbols

B Battery 7 Battery storage chamber 9 Front side wall 12 Buckle 13 Bracket 14 Pin 15 Operation lever 16 Clamp ring 17 Base end portion 18 Locked member 19 Tip end portion 22 Energizing means

Claims (2)

A bracket fixed to the outer surface of the side wall of the battery storage chamber, an operation lever rotatably supported by the bracket via a pin on the vertical axis, and a base end portion around the vertical axis about the operation lever in the vicinity of the pin The clamp ring is rotatably supported, and the front end of the clamp ring is engaged with a locked member connected to a battery cover that opens and closes the opened side surface of the battery storage chamber, and then the clamp ring In the buckle for holding the battery cover of the battery-powered vehicle in which the engagement state between the distal end portion of the clamp ring and the locked member is formed by bringing the base end portion of the clamp ring closer to the side wall than the pin,
A buckle for holding a battery cover of a battery-powered vehicle, characterized in that an urging means is provided that is supported by the operation lever and urges the operation lever to a predetermined locking position. 2. A buckle for holding a battery cover of a battery-powered vehicle according to claim 1, wherein the urging means comprises a leaf spring that abuts against the tip of the bracket.

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