JP5421620B2 - Driving device for moving body - Google Patents

Description

  The present invention relates to a drive device that moves a moving body with respect to a base via meshing of a rack and a gear, and in particular, has a biasing means interposed between the moving body and a gear, and the gear rotates in one direction. The present invention relates to a driving device for a moving body configured to accumulate a biasing force for movement in a biasing means in the process of doing so.

  The target drive device is disclosed in Patent Documents 1 and 2 for the purpose of improving the movement characteristics and usability in the specification of moving the moving body between the first position and the second position on the base side. The movable body moves through the meshing between the rack and the gear, and has an urging means interposed between the gear and accumulates the urging force in the urging means in the process of rotating the gear in one direction, The gear rotates in the other direction by the accumulated urging force and moves the moving body to one of the first position and the second position. In this structure, since the gear is linked to the urging means, for example, if an arrangement error or an assembly error occurs with respect to the moving body, the urging force accumulation degree of the urging means changes for each product, and the moving body is attached. The pushing operation force against the force (that is, the urging force accumulation process) and the moving speed of the moving body moved by the urging force are factors.

  Here, Patent Document 1 has a biasing force changing unit that changes the biasing force of the biasing unit by an operator's operation, and has a structure that can adjust the variation of the biasing force for each product by the biasing force changing unit. Disclosure. This urging means has an end side fixing portion of the urging member and an operation portion for operating the position change of the fixing portion. The urging force changing means has a permissible portion that allows movement of the fixed portion, and a plurality of locking portions that are disposed within a moving range of the fixed portion and that can lock the fixed portion, and the fixed portion is locked. In this structure, the urging force of the urging means is changed according to the position of the engaging portion.

  Further, Patent Document 2 is attached to a first stopper portion provided on the outer periphery of a gear (pinion) and a moving body (a base body composed of a holder body or the like), and at least a part of the moving region of the first stopper portion is disclosed. And a second stopper portion that moves between a locking position that protrudes to the outside and a release position that is entirely retracted out of the movement region. In this structure, when the second stopper portion is assembled to the base, the second stopper portion is disposed at the locking position and locked with the first stopper portion, and the moving body moves between the first position and the second position. In this case, the movable body can be assembled to the base with the urging means having an initial urging force so as to be arranged at the release position.

JP 2007-145250 A JP 2008-62694 A

  In the urging force changing structure of Patent Document 1, the design is restricted by the arrangement portion of the urging means, and it is often impossible to secure an arrangement portion that can be operated to change the position by grasping the operation portion after commercialization. Moreover, it is not only troublesome for an operator, that is, an amateur to change the locking position of the fixed portion by manual operation, but it cannot always be set to an optimum state.

  On the other hand, in the stopper structure of Patent Document 2, the second stopper portion is attached to the moving body, a locking position where a part protrudes from the moving region of the first stopper portion, and a releasing position where the whole is pulled out of the moving region. Therefore, it is complicated and requires positional accuracy with respect to the first stopper portion on the gear side. Further, in this structure, since the second stopper portion is provided on a member to be rotated (the bottom support member in FIG. 2 or the connecting member in FIG. 6), the movable body is maintained while the stopper portions are engaged with each other. Is difficult to insert into the space of the base, and the engagement may be released by the insertion force, or the meshing position between the gear and the tooth portion of the rack may be shifted.

  The present invention solves the above problems. The purpose thereof is, for example, a structure in which the gear is supported by the moving body in a state where the urging means has an initial urging force in order to sufficiently exhibit the dynamic characteristics due to the urging force, and is further assembled to the base from that state. With the positioning means of the present invention, the meshing position between the gear and the tooth portion of the rack is maintained as designed, so that the operating characteristics can be obtained reliably and optimally. Another object is to easily realize the positioning means without increasing the number of members.

In order to achieve the above object, the present invention is specified by the embodiments shown in FIGS. 1 to 6, and the movable body 2 is engaged with the base 1 through the engagement between the rack 14 and the gear 5 and the first position on the base side. The urging means 6 is movably assembled between the two positions and is interposed between the gear 5 and the urging force is applied to the urging means 6 in the course of rotation of the gear 5 in one direction. In the drive device in which the gear 5 rotates in the other direction by the accumulated urging force and moves the movable body 2 to either the first position or the second position, the movable body 2 is moved to the base. Positioning means (54 and 19 or 14a and 54a) for engaging the gear 5 and the teeth of the rack 14 at predetermined positions by the moving operation of the movable body 2 along the base 1 when assembled to the base 1. has also the movable body 2 is the base The positioning means is provided on the gear 5 and the convex portion 19 which is provided inside the partition wall (10) partitioning the space and increases the amount of protrusion toward the back of the space. And a concave portion 54 engageable with the convex portion .

The present invention as described above is more preferably embodied as described in claims 2 to 4 . That is,

(1) When the gear 5 passes through the convex portion 19 with an elastic displacement on the partition wall (10) side in the initial process of inserting the movable body 2 into the space of the base 1, 14, the concave portion 54 and the convex portion 19 are engaged with each other, and a piece portion 55 b that defines the concave portion 54 in the engaged state is engaged with the end surface of the convex portion 19. It is the structure which can maintain a meshing state with the said rack 14 (Claim 2) .

(2) The positioning means includes an engaging portion 54a and an engaged portion 14a that are different from other tooth shapes on the gear portions of the gear 5 and the rack 14 and can be engaged with each other. (Claim 3) .

(3) The claw portion 59 provided in the gear 5 engages with the fitting hole 25a provided in the movable body 2, whereby the gear 5 accumulates a predetermined urging force in the urging means 6. In addition to maintaining the initial state, the biasing means 6 has a restricting means (25a and 59) that prevents the biasing force from rotating in a direction that weakens the biasing force from the initial state (Claim 4) .

  According to the first aspect of the present invention, the gear and the tooth portion of the rack are always meshed at a predetermined position by the positioning means by the normal moving operation of the moving body along the base. As a result, the driving device for the moving body supports the gear on the moving body in a state where the urging means has an initial urging force. In addition, the operating characteristics using the rack / gear engagement mechanism and the urging force can be reliably and optimally imparted.

Further, in the present invention, as shown in FIG. 4, the positioning means is provided on the inside of the partition wall that partitions the base side space, and is provided on the gear and the gear that increases the protrusion amount toward the back side of the space. For example, it can be easily implemented without increasing the number of members as compared with the structure of Patent Document 2, and malfunction is less likely to occur.

In the invention of claim 2, in the initial process of inserting fraud and mitigating risk mobile to the base space to claim 1,
When the gear passes through the convex portion with elastic displacement of the base side partition wall, the gear engages with the rack, and at the same time, the concave portion and the convex portion engage with each other. Furthermore, the one part which divides the recessed part in the engagement state is latched to the end surface of the convex part, and the meshing state with the rack is maintained. As a result, when the moving body is inserted into the space of the base while the moving body supports the gear, the drive and the teeth of the gear and the rack are accompanied by a batching sound during restoration after the elastic displacement of the base side partition wall. Since the portion is engaged with the predetermined portion, the assembling operability can be improved.

In the invention of claim 3, since the positioning means has an engaging portion and an engaged portion that are different from other tooth shapes and can be engaged with each other at the gear and rack tooth portions, for example, Compared to the structure of Patent Document 2, the number of members can be easily increased. Further, the drive device has an advantage that the engagement state between the engaging portion and the engaged portion can be visually confirmed as to whether or not the positioning is normally performed as compared with the positioning means of claim 1 or 2. is there.

In the invention of claim 4, as the restricting means for preventing rotation in the direction of weakening the urging force from the initial state of the urging means storing the predetermined urging force, the movable body side fitting hole and the gear side claw portion are simply described. Therefore, the structure is simplified and easy to implement as compared with the structure of Patent Document 2, and malfunction is unlikely to occur.

As an example of the base (form case) and the movable body (form holder main body) of the present invention, (a) is an operation diagram showing a use position of the movable body, and (b) is a storage position of the movable body. It is the block diagram which decomposed | disassembled the drive device of FIG. (A) is a block diagram which shows the control means provided between the gear of FIG. 1, and a moving body, (b) is a schematic top view which shows the state which looked at the gear from the top. (A) shows the posture when the moving body is assembled to the base as shown in FIG. 3 (a), (b) is an enlarged view of part A of (a), and (c) is an enlarged view of part B of (a). It is a block diagram. FIGS. 4A to 4C are schematic views of main parts showing the moving process from the state shown in FIG. 4 to the state shown in FIG. 3A corresponding to the cross section taken along the line CC in FIG. FIG. (A)-(c) is a schematic diagram which shows the gear part in each process corresponding to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In this description, the device structure, assembly, and operation will be described in detail in this order.

The drive device 9 in the form of (device structure) includes a case 1 having a rack 14, a holder body 2 movably incorporated in the case 1, and a bottom pivotally supported in a frame 21 of the holder body 2. The support member 3, the gear 5 supported by the rear recess 25 of the holder body 2, the arm 4 operatively connecting the bottom support member 3 and the gear 5, and the gear 5 and the recess 25 are disposed. A biasing means 6 having a coil spring configuration, a push-push type latch means (a pin portion 7a of the swinging piece and a cam groove 16), and a rotary damper 8 are provided. The structural feature is that the holder main body 2 is assembled to the case 1 so as to be movable between a use position protruding from the case 1 through engagement of the rack 14 and the gear 5 and a storage position accommodated in the case 1. And a spring-type biasing means 6 interposed between the holder main body 2 and the gear 5, and the biasing force is accumulated in the biasing means 6 in the process of the gear 5 rotating in one direction, The structure in which the gear 5 rotates in the other direction by the accumulated urging force to move the holder main body 2 in the use position direction (or the storage position direction), and when the holder main body 2 is assembled to the case 1, It is in a configuration having positioning means (54 and 19 or 14a and 54a) for meshing the gear 5 and the tooth portion of the rack 14 at a predetermined position by the operation of moving the holder body 2 along.

  In this embodiment, the base of the present invention is the case 1, the moving body of the present invention is the holder main body 2, the first position is the use position where the holder main body 2 protrudes from the case 1, and the second position is the holder main body 2. It is an example at the time of setting it as the storage position accommodated in case 1. FIG. However, the base and the moving body of the present invention are not limited to this form. For example, as in Patent Document 1, the base of the present invention is a box body, the moving body of the present invention is a lid, and the first position and the second position. May be the closed position of the lid with the opening of the box body closed, or the open position of the lid with the opening of the box body opened. Further, the base of the present invention may be a storage main body such as a desk forming a storage portion, and the movable body of the present invention may be a drawer body that is taken in and out of the storage portion.

  The members constituting the drive device 9 are the configurations of the case 1, the holder body 2, the bottom support member 3, the arm 4, the gear 5, the latch means swing piece 7, and the rotary damper 8 except for the biasing means 6. Both members are made of resin, but other than resin may be used. Among these, as shown in FIG. 2, the case 1 has a rectangular flat shape in which the space is defined by the upper and lower walls 10, 11, both side walls 12, and the front end wall, and is open at the front, that is, the rear side. The upper wall 10 is located in the middle of the left and right, and has a wide opening 13 extending in the front-rear direction, a rack 14 provided continuously in the front-rear direction along one inner surface of the opening 13, and both sides 4 and a pair of narrow guide grooves 15 extending in the front-rear direction, positioning grooves 10b provided on the upper wall inner surface 10a side and communicating with the guide grooves 15 from the rear end, and FIG. As shown in c), it has a convex portion 19 that protrudes in front of the rack 14 and constitutes positioning means.

  As shown in the enlarged view of FIG. 2, the tooth portion of the rack 14 is formed into a tooth 14a having a different shape as shown in the enlarged view of FIG. This tooth 14a corresponds to the engaged portion constituting the positioning means of claim 4, and has a tooth shape that is two to three times thicker than other teeth. Of the guide grooves 15, one guide groove 15 is provided with a rectangular window portion 15a on the front side, and the inside of the case is exposed from the window portion 15a. The convex portion 19 is located in front of the irregularly shaped teeth 14a of the rack 14, and has an inclined surface 19a that increases the amount of protrusion from the space entrance side toward the space back side. On the other hand, a heart-shaped cam groove 16 constituting a latch means is provided on the inner surface of the lower wall 11 immediately below the window portion 15a. The cam groove 16 locks the holder body 2, which will be described later, at the storage position of the holder body 2 via the pin portion 7 a of the swing piece 7. On both side walls 12, mounting fixing portions 17 are provided on the rear side. On the inner surfaces of both side walls 12, guide grooves 18 are extended in the front-rear direction in a state of facing each other.

  The holder main body 2 has a substantially rectangular frame shape corresponding to the space of the case 1, and is integrated with a front portion 20a that defines the inside 21 of the frame portion 20 and a front side of the front portion 20a. It consists of part 20b. The front portion 20a is sized so that the inside of the frame 21 can be inserted downward with a margin, and is integrated with the oblique bottom support member guide grooves 22 provided on the opposite inner surfaces on both sides and the rear end side. And a sub-holder 28 provided in the left and right intermediate portion corresponding to the decorative plate 27 in the frame 21 and capable of swinging up and down and biased in a horizontal direction. Yes.

  The rear portion 20b is an arrangement portion for a functional member, and includes shaft holes 23 provided on the opposing inner surfaces on both sides, ribs 24a provided on the front sides of both sides, and ribs 24b provided on both sides of the upper surface. A pivot support portion (not shown) that is provided below one rib 24b and pivotally supports the swing piece 7, a large circular recess portion 25 provided slightly on one side from the left and right middle, and a bottom surface of the recess 25 And a damper mounting portion 25b penetrating a part of the periphery of the recess vertically, and a support shaft 26 protruding from the center of the recess 25.

  Among these, each rib 24 a is fitted into the case side guide groove 18. As shown in FIG. 4, the rib 24b is formed in a stepped portion 24c whose rear side (front side) is one step lower, and is formed in an inclined portion 24d that is inclined so that the front side becomes lower toward the front. The ribs 24b are fitted together by pushing the corresponding inclined portions 24d into the respective guide grooves 15, and guide the movement of the holder body 2 relative to the case 1 in the fitted state. Further, the stepped portion 24c hits the corresponding end surface of the guide groove 15 when the holder main body 2 is moved in the protruding direction, and prevents the holder main body 2 from coming off from the case 1. On the other hand, the fitting hole 25 a is provided as a relatively large substantially rectangular opening on the front side of the recess 25. In the fitting hole 25a, a claw portion 59 of the gear 5 described later is engaged with one end side of the hole as shown in FIG. In this example, in relation to the fitting hole 25a, a circular shallow groove 25d centered on the support shaft 26 is formed on the upper surface of the recess 25 from the other end side of the fitting hole 25a to the vicinity of one end side of the hole. Is provided. The claw portion 59 slides along the groove 25d from the fitting hole 25a when the gear 5 is rotated clockwise from the position shown in FIG. Through the engagement hole 25a.

  The urging means 6 and the gear 5 are disposed in the recess 25 in a state of being pivotally supported on the coaxial line with respect to the support shaft 26. The support shaft 26 protrudes from the center of the recess 25 as shown in FIG. 2 and FIG. 3B, and has a slit penetrating vertically. The corresponding end 6b is locked. The gear 5 is provided around a tooth portion 50 provided around the upper side of the periphery around the shaft hole 5 a and meshing with the rack 14, and a cylindrical portion 51 integrated below the tooth portion 50. And a claw portion 59 projecting downward from a side edge portion approaching the lower surface. Among these, the cam groove 56 is provided in the vertical direction around the cylindrical portion 51 and is divided by the inclined piece 51 b and the inclined piece 51 c, and the inclined groove 57 provided around the upper side of the cylindrical portion 51. And a lower parallel groove 58 provided around the lower side of the cylindrical portion 51 and leading from the back side of the inclined piece 51c to the lower inlet of the inclined groove 57. The claw portion 59 is provided at the lower end of the inclined piece 51c and constitutes the regulating means of the present invention together with the fitting hole 25a described above. And the nail | claw part 59 maintains the initial state which the gear 5 accumulate | stored predetermined urging | biasing force in the urging | biasing means 6 by engaging with the one end surface of the fitting hole 25a, and the initial state of the urging | biasing means 6 Prevents rotation in a direction that weakens the biasing force.

  Further, on the upper end surface side of the gear 5, as shown in FIG. 3, a ring portion 52a partitioning the upper side of the shaft hole 5a, a tube end surface portion 52b integrated around the lower side of the ring portion 52a, and a tube end surface Urging means locking holes 52e penetrating a part of the portion 52b up and down, a hollow portion 52c lowering the space between the tube end surface portion 52b and the tooth portion 50, and an outer periphery of the tube end surface portion 52b A plurality of reinforcing ribs 52d that connect the tooth portion side inner periphery of the recess 52c, a relief portion 53 that is located on the opposite side of the locking hole 52e and is slightly lowered together with a part of the tooth portion 50, and a relief portion A recessed portion 54 that is further lowered in front of 53 and an engaging portion 54a that forms the escape portion 53 of the tooth portion 50 and that is notched one step lower in the tooth portion are integrally provided.

  Among these, the corresponding end portion 6a of the biasing means 6 is locked in the locking hole 52e. That is, in this structure, the urging means 6 has, for example, the lower end portion 6b locked with the slit of the support shaft 6 and the upper end portion 6a locked with the locking hole 52e. From this state, the urging means 6 stores the initial urging force by rotating the gear 5 by a predetermined angle, and at the same time, the claw portion 59 engages with one end face of the fitting hole 25a to weaken the initial urging force. The rotation of the gear 5 is prevented. The restricting means of the present invention allows the rotation of the gear 5 in the direction in which the urging force is increased from the state in which the claw portion 59 is engaged with the one end face of the fitting hole 25a.

  The escape portion 53 is defined by a substantially L-shaped rib 55, and is a portion that comes into contact with the convex portion 19 on the case side when the holder body 2 is assembled to the case 1. The concave portion 54 is a portion that engages with the convex portion 19 on the case side. The engaging portion 54a constitutes the positioning means of claim 4 and engages with the irregularly shaped tooth 14a which is the engaged portion. The rib 55 includes an L-shaped vertical piece 55a and a horizontal piece 55b. The horizontal piece 55b also defines a part of the recess 54.

  On the other hand, in the frame 21 of the holder main body, it is pivotally supported by the guide grooves 22 on both sides and closes to the non-supporting position close to the holder main body and the holder main body. A bottom support member 3 that can be switched to a support position that is disposed, and an arm 4 that connects the bottom support member 3 and the gear 5 are provided.

  The arm 4 includes a support rod 40 disposed in the front width direction of the frame 21, a shaft portion 42 projecting from both ends of the support rod 40, and a pair of bending portions that are integrated on the left and right sides of the support rod 40 and bent upward. The arm portion 41 and the shaft portion 43 projecting from the upper outer surface of each arm portion 41, and the sliding contactor 44 protruding forward from a position slightly deviated from the center of the support rod 40 and the sliding contactor 44 upward And a protrusion 45 projecting from the head. On the other hand, the bottom support member 3 includes a substantially rectangular frame 30 having a size that fits inside the frame 21, and includes a bottom plate portion 31 that supports the bottom portion of the containers, and a side surface of the containers that faces the bottom plate portion 31. And a pair of shaft portions 34 and shaft holes 35 provided on the same axis on both sides.

  The rocking piece 7 has a tracing pin 7a that turns along the groove shape of the cam groove 16, and is pivotally supported by a predetermined angle with respect to the holder body side pivoting portion. The swinging piece 7 constitutes a push-push locking mechanism that is a latch means together with the heart-shaped cam groove 16 and is locked when the holder body 2 is switched to the retracted position against the urging force. Then, the lock is released by the next pushing operation. The rotary damper 8 is, for example, a hydraulic type having a known rotary gear 8a, and the rotary gear 8a receives the resistance of the hydraulic oil in the main body 8b. The rotary damper 8 has an attachment piece 8c integrated with the main body 8b, and is attached to the attachment 25b by a pushing operation. This operation is performed when the rotary gear 8a is engaged with the gear tooth portion 50 and the holder body 2 is moved by the urging force of the urging means 6 to move from the retracted position to the use position. The vehicle is moved at a low speed by receiving the braking force.

(Assembly) The above members are assembled in the following procedure example. That is, as a work procedure, the gear 5 and the biasing means 6, the swing piece 7 and the rotary damper 8 are assembled to the holder body 2 in the manner described above. In addition, the bottom support member 3 and the arm 4 are assembled to the holder main body 2 before and after this. In this case, the arm 4 is assembled to the holder body 2 so as to be rotatable by a predetermined angle by fitting each shaft portion 42 to the corresponding shaft hole 23 with respect to the holder body 2. At that time, the sliding contact 44 is fitted into the cam groove 56 (usually the inclined groove 57) of the gear 5. For this reason, the arm 4 is in a state in which the arm portions 41 are arranged obliquely upward. For example, after each shaft portion 35 is slidably fitted in the corresponding guide groove 22 in the frame 21, the bottom support member 3 is fitted with the corresponding shaft portion 43 on the arm side in each shaft hole 35. .

  The bottom support member 3 is operatively connected to the arm 4 through the fitting of the shaft hole 35 and the shaft portion 43 while being pivotally supported by the holder body 2, and the sliding contact 44 is inclined. It becomes a support position which receives a container bottom face like FIG.1 (b) and FIG.4 (a) in the state fitted by the lower side of the groove | channel 5. FIG. The bottom support member 3 is the first stage in which the holder body 2 is pushed into the case 1 and switched from the use position in FIG. 1B to the storage position in FIG. 5, when it is slid to the vicinity of the entrance of the horizontal groove 58, it becomes a non-supporting position that becomes a substantially horizontal state inside the holder body 2 (inside the frame 21). Thereafter, the sliding contact 44 is slid along the horizontal groove 58 in accordance with the degree of insertion of the holder body 2 into the case 1.

(Operation) The holder body 2 is inserted into the case 1 from the state shown in FIG. 4 with respect to the case 1 so that the gear 5 incorporated in the rear portion 20b is almost in the case space. It is assembled and supported in the state of use position b). 5 and 6 schematically show details at that time.
(1) Each figure (a) has shown the initial stage in which the holder main body 2 is pushed with respect to case 1 in the arrow direction. At this time, from the state where the holder body 2 matches the guide groove 18 with the ribs 24a on both sides of the case 1 and the corresponding positioning grooves 10b with the ribs 24a on both sides as shown in FIG. Push-in operation is performed. Then, when the holder body 2 is fitted into the guide groove 15 through the corresponding positioning groove 10b with the inclined portions 24d and ribs 24b on both sides, and the holder body 2 tries to move again in the protruding direction, each step portion 24c hits the corresponding end face of the guide groove 15 to prevent the case 1 from coming off.

  By the way, in the above assembling operation of the holder main body 2, the gear 5 supported by the holder main body 2 is engaged with the case-side rack 14, that is, at the use position of the holder main body 2 in FIG. When the initial state of the gear 5 (the portion of the tooth portion 50 of the gear 5 that meshes with the first tooth 14a of the rack 14) changes for each product, the gear 5 of the holder body 2 is rotated by the rotation of the urging force of the gear 5. In addition, the moving speed through the engagement of the rack 14 changes, and the designed moving characteristics cannot be obtained. The present invention solves such a problem by the following operation.

(2) Each figure (b) and each figure (c) have shown the intermediate state in which the holder main body 2 is assembled | attached with respect to the case 1 as mentioned above, and an assembly completion state. That is, in this structure, the gear 5 forms the above-described convex portion 19 among the partition walls that partition the space on the case side in the initial process when the holder body 2 is inserted into the space of the case 1. It passes through the convex part 19 with the elastic displacement of the part. More specifically, each figure (b) shows a state in which the holder main body 2 is inserted into the case 1 and the gear-side escape portion 43 is in contact with the convex portion 19 and further inserted in the corresponding contact state. In this structure, since the convex part 19 becomes the inclined surface 19a which increases the amount of protrusion as it goes ahead like FIG.4 (c), the convex part 19 is elastically displaced by the partition wall part which forms this convex part. As a result, the vehicle runs on the gear side escape portion 43 relatively smoothly. Further, the corresponding side surface of the convex portion 19 is pushed in the direction of the arrow in the figure while being positioned and guided along the vertical piece 55a in the rib 55 as shown in FIG. 6B. Thereafter, when the gear side escape portion 43 passes through the convex portion 19, the convex portion 19 engages with the concave portion 54, and at the same time, the engaging portion 54 a in which the gear 50 is adjacent to the concave portion 54 and the tooth portion is lowered by one step is provided in the rack 14. Meshes with the first tooth 14a, that is, the engaged portion.

(3) Each of the above engagements is such that the partition wall portion (in this example, the upper wall 10 after forming the convex portion 19 or the left and right intermediate portions on the near side) is restored from the elastically displaced state to the original state. Done with a batching sound when played. For this reason, the operator confirms that the holder main body 2 is securely assembled to the case 1 by the patching sound and the engagement portion 54a and the teeth 14a as the engaged portions as shown in FIG. The engagement state can be confirmed by visual observation. Further, in this structure, the horizontal piece 55b of the rib 55 that engages the concave portion 54 at the same time as the gear 50 meshes with the rack 14 and defines the escape portion 53 in the engaged state. Locks to the end face of the convex portion 19. Thereby, in this structure, the meshing state of the gear 50 and the rack 14 is maintained, and the possibility that the gear 50 is inadvertently detached from the rack 14 is reliably eliminated.

(4) The drive device 9 described above has a gear when the holder main body 1 is switched from the use position to the storage position in the storage position where the holder main body 2 is pushed into the case 1 as shown in FIG. 5 rotates clockwise while meshing with the rack 14, and an urging force proportional to the amount of rotation of the gear 5 is accumulated. The holder main body 2 is held at the storage position accommodated in the case 1 through the engagement of the latch means, that is, the pin portion 7a of the swing piece 7 and the heart-shaped cam groove 16 against the urging force. In this stored state, the sliding contactor 44 is fitted in the horizontal groove 58, and the protrusion 45 is in contact with a not-shown abutting portion provided on the inner surface of the upper wall of the rear portion 20b. Therefore, rattling is easily prevented although it is likely to occur between the members.

  On the other hand, when the holder body 2 is switched to the use position, the decorative plate 27 of the holder body 2 is pushed. Then, the holder body 2 is disengaged from the pin portion 7 a and the cam groove 16, and the gear 5 is rotated counterclockwise by the urging force accumulated in the urging means 6 and meshes with the rack 14. 1 (b) is switched to the use position. In this switching process, the gear 5 is slowed down by the rotary damper 8 to alleviate rapid movement of the holder body 2. Further, the bottom support member 3 is switched from a non-support position to a support position that intersects the holder body 2 up and down by the cam action of the sliding contact 44 of the arm 4 and the cam groove 56 on the gear side. In this state of use, the sliding contactor 44 described above is fitted into the inclined groove 57 and is pressed against the left inclined piece 51b below the inclined groove 57. Is prevented. In this state, when the containers (not shown) are inserted downward into the holder body side frame 21 from above, the bottom of the containers is received by the bottom plate 31 on the bottom support member side, and the surroundings of the containers are The side support portion 32 and the sub-holder 28 are restrained and stably held.

  In addition, the above form does not restrict | limit this invention at all. The present invention can be applied to various apparatuses with reference to this embodiment. For example, the base and the holder main body are developed as a desk, an accessory case and a drawer thereof, various apparatus main bodies, a lid and a door thereof.

1 ... Case (corresponding to base, 10 is upper wall constituting partition wall, 15 is guide groove)
2 ... Holder body (equivalent to a moving body, 21 is a frame, 22 is a guide groove, and 25 is a recess)
3 ... bottom support member (34 is a shaft portion, 35 is a shaft hole)
4 ... Arm (44 is a sliding contact, 42 and 43 are shaft parts)
5 ... Gear (5a is a shaft hole, 50 is a tooth part, 52e is a locking hole, 56 is a cam groove)
6 ... biasing means (6a and 6b are end portions)
7 ... Oscillating piece (latch means, 7a is a tracing pin)
DESCRIPTION OF SYMBOLS 8 ... Rotary damper 9 ... Container holder apparatus 14 ... Rack (14a is a deformed tooth and is equivalent to the to-be-engaged part as a positioning means)
16 ... Cam groove (latch means)
19 ... convex portion (positioning means, 19a is an inclined surface)
25a ... fitting hole (regulation means)
53 ... Escape part 54 ... Recessed part 54a ... Engaging part as positioning means 55 ... Rib (55a is a vertical piece, 55b is a horizontal piece as one part)
59 ... Claw (regulation means)

Claims (4)

An urging means is attached to the base so that the movable body can move between the first position and the second position on the base side through meshing of the rack and the gear and is interposed between the gear and the base. And a biasing force is accumulated in the biasing means in a process in which the gear rotates in one direction, and the gear rotates in the other direction by the accumulated biasing force to move the movable body to the first position and the second position. In the drive device that moves to either
When assembling the movable body to the base, the movable body has positioning means for meshing the gear and the tooth portion of the rack at a predetermined position by a movement operation of the movable body along the base;
In addition, the moving body is taken in and out of the space of the base, and the positioning means is provided on the inner side of the partition wall that partitions the space, and the protrusion and the gear that increase the amount of protrusion toward the back side of the space A driving device for a moving body, comprising: a recess provided on the projection and engageable with the projection . The gear engages with the rack when passing through the convex portion with elastic displacement on the partition wall side in the initial process when the moving body is inserted into the space of the base, and at the same time, the concave portion and the convex portion. The engaging portion is engaged, and a piece portion defining the concave portion in the engaged state is locked to an end surface of the convex portion, so that the meshed state with the rack can be maintained. The moving body drive device according to Item 1 . The positioning means is different from other tooth shapes in the gear and the tooth portion of the rack,
3. The moving body drive device according to claim 1, further comprising an engaging portion and an engaged portion that are engageable with each other. When the claw portion provided on the gear engages with the fitting hole provided on the moving body, the gear maintains an initial state in which a predetermined urging force is accumulated in the urging means, and the attachment is performed. mobile body driving device according to any one of that it has a regulating means for preventing rotation in a direction to weaken the urging force from the initial state of the energization means from claim 1, wherein 3.

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