JP4624208B2 - Slide guide device - Google Patents

Description

  The present invention relates to a slide guide device. More specifically, the present invention relates to a slide guide device that moves and fixes a slider with respect to a guide member.

  As an apparatus for moving and fixing a slider with respect to a guide member, for example, there is a height adjusting apparatus for an armrest of a chair. Conventionally, as an apparatus for adjusting the height of an armrest of a chair, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 2000-279268.

  As shown in FIGS. 10 and 11, this height adjusting device attaches a height adjusting plate 102 (guide member) having a large number of locking grooves 101 to an armrest strut 103 and attaches it to the height adjusting plate 102. A support rod 105 (slider) that slides in the vertical direction is attached to the armrest 104. An operation lever 107 having an engagement pin 106 is attached to the support rod 105 by a horizontal pin 108 so as to be rotatable. The operation lever 107 is urged by the compression coil spring 109 in a direction that causes the engagement pin 106 to enter the engagement groove 101. When the operation lever 107 is not operated, the engagement pin 106 is engaged with the engagement groove 107. 101. For this reason, the armrest 104 is fixed to the armrest column 103.

  From this state, when the operating portion 107 a of the operating lever 107 is gripped, that is, when the operating portion 107 a is pushed backward, the operating lever 107 rotates about the horizontal pin 108, and the engaging pin 106 comes out of the locking groove 101. Come off. Thereby, the support rod 105 becomes free from the height adjusting plate 102, and the armrest 104 can be raised and lowered. Then, after raising and lowering the armrest 104 to a desired height and then releasing the gripped operation portion 107a, the operation lever 107 is returned to its original position by the urging force of the compression coil spring 109, and the engagement pin 106 is separated. Is fitted in the locking groove 101. As a result, the support rod 105 is fixed to the height adjusting plate 102 and the height of the armrest 104 can be locked.

JP 2000-279268 A

  However, in the above-described armrest height adjusting device, the operation portion 107a of the operation lever 107 is operated to be pushed backward, so that the operation direction of the operation portion 107a is different from the direction in which the armrest 104 is moved. For this reason, in order to raise and lower the armrest 104, two separate operations, an operation of pushing the operation unit 107a backward and an operation of raising and lowering the armrest 104, are required, and the operability is poor.

  It is an object of the present invention to provide a slide guide device with good operability, and in particular, to provide a slide guide device capable of matching the operation direction of the operation unit with the moving direction of the slider. And

In order to achieve this object, the invention described in claim 1 comprises a guide member, a slider supported by the guide member so as to be reciprocally movable, and a locking means for fixing the slider to the guide member. The locking means includes: an operating portion supported by the slider so as to be displaceable in a reciprocating direction of the slider within a predetermined range; and when the operating portion is at a neutral position in the middle of the displacement range, also possess a locking releasing means for releasing the locked state when the operation unit is held state is displaced in both either direction from the neutral position, the operating portion of the displacement and the locking state is released slider it is shall be transmitted.

  When the operation unit is not operated, that is, when the operation unit is in the neutral position of the displacement range, the slider is fixed to the guide member by the locking means and cannot move. In this state, the unlocking means keeps the slider locked.

  From this state, when the operating portion is operated and displaced from its neutral position, the unlocking means of the locking means releases the locked state of the slider, so that the slider becomes free with respect to the guide member and moves the slider. be able to. Since the slider is supported so as to be able to reciprocate with respect to the guide member, the slider can be moved in both directions. Further, the operation portion can be displaced in both directions from its neutral position, and the lock release means releases the locked state of the slider even if the operation portion is displaced in either direction.

  Then, as in the second aspect of the invention, if the moving direction of the slider and the displacement direction of the operation portion are matched, the slider can be moved as it is in the direction in which the operation portion is displaced. The operation unit can be operated and the slider can be moved.

  According to a third aspect of the present invention, in the slide guide device for moving and fixing the slider with respect to the guide member, the guide member is provided with a plurality of locking receiving portions arranged in the moving direction of the slider, and the slider. Provided between the slider and the locking portion, the locking portion being reciprocally movable between a locking position that fits into the locking receiving portion and a release position that is disengaged from the locking receiving portion. An urging member that urges toward the locking position, a cam body that is attached to the slider so as to be displaceable in the same direction as the movement direction, and moves the locking portion to the release position when displaced from the neutral position; And an operating portion provided on the cam body. When the operating portion is moved and the cam body is displaced with respect to the slider, the locking portion moves to the release position against the biasing force of the biasing member, and the operating portion is left as it is. The slider moves in the same direction as Is shall.

  When the operation portion is not operated, the locking portion is held at the locking position by the urging force of the urging member, and the locking portion is fitted into the locking receiving portion. For this reason, the slider is fixed to the guide member and cannot move. In this state, the cam body is returned to the neutral position because the locking portion is held at the locking position by the biasing member.

  From this state, when the operation unit is operated and moved to one side, the cam body is displaced to one side with respect to the fixed slider, and the locking unit is locked against the biasing force of the biasing member. Move from position to release position. For this reason, the locking part is detached from the locking receiving part, and the slider becomes free with respect to the guide member. Now, since the operating part is operated to one side, the operating force is transmitted from the operating part → cam body → locking part → slider, and the free slider moves to the one side as it is. That is, by moving the operation unit to one side, it is possible to release the fixation of the slider and move it to the one side as it is.

  Then, when the force that the cam body holds the locking portion in the release position disappears, for example, by stopping the operation of the operation portion, the locking portion is returned to the locking position by the biasing force of the biasing member, and the movement destination The slider is fixed to the guide member by fitting into another locking receiving portion. In other words, the slider can be moved to one side and fixed to an arbitrary position. Further, when the locking portion is returned to the locking position, the cam body is returned to the neutral position, and the operation portion is also returned to the original position.

  Similarly, by operating the operation unit to the opposite side, the slider can be moved and fixed to an arbitrary position on the opposite side.

  In a state where the locking portion is fitted in the locking receiving portion, the locking portion is not detached from the locking receiving portion even if a force in the moving direction acts on the slider, and the slider is firmly fixed.

  According to a fourth aspect of the present invention, the slide guide device includes a guide that is provided on the guide member and regulates the displacement of the cam body relative to the slider in the same direction as the moving direction of the slider. Therefore, the cam body can always be displaced straight with respect to the slider.

  In the slide guide device according to the fifth aspect, the latch receiving portion is a latching recess, the latching portion is a latching projection, and the latching recess is orthogonal to the moving direction of the slider. It has a load receiving surface for receiving an input load from the locking convex portion moving to the stop position. Therefore, the load acting on the fixed slider is transmitted from the slider → the locking projection → the load receiving surface and supported by the guide member. Since the load receiving surface is orthogonal to the moving direction of the slider, the load from the slider can be received vertically.

  Further, in the slide guide device according to the sixth aspect, the guide member is provided on the armrest column of the chair, the slider is provided on the armrest of the chair, and the height of the armrest is adjusted. Therefore, when the slider is moved with respect to the guide member, the height of the armrest of the chair changes. Moreover, an armrest can be fixed by fixing a slider to a guide member. That is, the armrest of the chair can be attached so that the height can be adjusted.

In the first aspect of the present invention, the guide member includes a guide member, a slider supported by the guide member so as to be reciprocally movable, and a locking unit that fixes the slider to the guide member. An operation unit supported by the slider so as to be displaceable in a reciprocating direction of the slider within a predetermined range , and when the operation unit is in a neutral position in the middle of the displacement range, the operation unit is configured to hold the slider in a locked state with respect to the guide member. possess a locking releasing means for releasing the locked state even when the displacement in both directions either direction from the neutral position, is transmitted to the displacement of the operating unit locking state is released slider take any action, because unit The slider can be moved by this operation. Even if the operating portion is displaced in either direction from the neutral position, the locking state of the slider can be released by the locking releasing means, and the operability can be improved.

  In the invention according to the second aspect, since the moving direction of the slider coincides with the displacement direction of the operation portion, the slider can be moved as it is in the direction in which the operation portion is displaced. Therefore, the unlocking operation and the slider moving operation can be smoothly performed as a series of operations, and the operability can be further improved.

  The slide guide device according to claim 3, wherein the plurality of latch receiving portions are provided on the guide member and are arranged in the moving direction of the slider, and the latch positions and the latch receiving portions that are provided on the slider and fit into the latch receiving portion. A latching portion that can reciprocate between the release position and the slider and the latching portion, and a biasing member that biases the latching portion toward the latching position and the slider The cam body is mounted so as to be displaceable in the same direction as the moving direction, and when it is displaced from the neutral position, the cam body moves the locking portion to the release position, and the operation portion provided on the cam body. When the cam body is displaced with respect to the slider, the locking portion moves to the release position against the urging force of the urging member, and the slider is moved in the same direction as the movement direction of the operation portion. Move the slider to one side if operated to one side Can, it is possible to move the slider to the other side by operating the operation unit on the other side. For this reason, the operation direction of the operation unit and the moving direction of the slider can be matched, and usability can be improved.

  Moreover, since the locking portion is fitted into the locking receiving portion and locked, the locking portion does not come off from the locking receiving portion even if a force in the moving direction acts on the slider, and the slider is firmly fixed. can do. Therefore, it is possible to provide a slide guide device that is particularly suitable for an attachment device for a member that can receive a large load and adjust its position, such as a device that supports the armrest of a chair so that the height can be adjusted.

  In the slide guide device according to the fourth aspect of the invention, since the guide member is provided with a guide that regulates the displacement of the cam body with respect to the slider in the same direction as the moving direction of the slider, the cam body is always held with respect to the slider. It can be displaced straight. For this reason, the operation of the locking portion by the cam body can be ensured and can be operated smoothly.

  In the slide guide device according to the fifth aspect, the latch receiving portion is a latching recess, the latching portion is a latching projection, and the latching recess is orthogonal to the moving direction of the slider. Since it has a load receiving surface that receives the input load from the locking projection that is moving to the stop position, the load receiving surface receives the load that tries to move the slider acting on the fixed slider vertically. be able to. For this reason, the load which acts on a slider can be received firmly and the rigidity of a fixed state can be improved further.

  Furthermore, in the slide guide device according to claim 6, the guide member is provided on the armrest column of the chair, the slider is provided on the armrest of the chair, and the height of the armrest is adjusted. It can be used as an armrest height adjustment mechanism.

  Hereinafter, the configuration of the present invention will be described in detail based on the best mode shown in the drawings.

  1 to 8 show an example of an embodiment of the slide guide device of the present invention. In the present embodiment, an example applied to a chair armrest height adjusting device will be described.

  The slide guide device 26 moves and fixes the slider 2 with respect to the guide member 1. The slide guide device 26 is provided on the guide member 1, and includes a plurality of latch receiving portions 3 arranged in the moving direction S of the slider 2, and the slider 2 and a latching position P1 (a position where the latching part 4 is present in FIG. 3 (A)) and a release position P2 (FIG. 3 (B) ), (C), the position where the locking portion 4 is present in FIG. 4), and the locking portion 4 provided between the slider 2 and the locking portion 4. 4 is attached to the slider 2 so as to be displaceable in the same direction as the movement direction S. The neutral position P3 (the cam body 6 in FIG. 3A) is attached. A cam body 6 that moves the locking portion 4 to the release position P2 when it is displaced from a position where the cam body 6 is located, and an operation portion 7 provided on the cam body 6. When the operation portion 7 is moved and the cam body 6 is displaced with respect to the slider 2, the locking portion 4 moves to the release position P2 against the urging force of the urging member 5, and the movement direction S of the operation portion 7 remains unchanged. The slider 2 is moved in the same direction. That is, the locking means for fixing the slider 2 to the guide member 1 includes the locking receiving portion 3, the locking portion 4, and the urging member 5. Moreover, the latching means has the operation part 7 and the cam body 6 as a latch release means.

  In this embodiment, the latch receiving part 3 is a recessed part (henceforth the latching recessed part 3), for example, and the latching part 4 is a convex part (henceforth the latching convex part 4), for example. However, the latch receiving portion 3 may be a convex portion and the latch portion 4 may be a concave portion.

  A slide guide device 26 that is a height adjustment device for the armrest of the chair is provided between the armrest support 8 and the armrest 9, for example. The armrest support 8 is attached to a seat receiving member of a chair (not shown), for example. A space 10 for accommodating the slide guide device 26 is provided in the vertical portion 8 a of the armrest support 8. In addition, the armrest 9 is provided with a cylindrical cover 11 that hides the slide guide device 26 to prevent the appearance from deteriorating. The outer wall 8b of the vertical portion 8a of the armrest support 8 and the outer wall 11a of the cover 11 are provided with slits 12 and 13 that enable the operation unit 7 to be attached to the cam body 6, respectively.

  For example, the guide member 1 is a plate that is elongated in the moving direction S of the slider 2, and two guide members 1 are provided so as to sandwich the slider 2. The first and second guide members 1A and 1B are formed with elongated holes 14 in the longitudinal direction, that is, the moving direction S of the slider 2, and a plurality of locking recesses 3 are formed on one edge of the elongated hole 14. Are formed at a constant pitch. Since the locking recess 3 is formed at one side edge of the long hole 14, the locking recess 3 opens in a direction orthogonal to the moving direction S of the slider 2. As shown in detail in FIG. 5, the locking recess 3 is perpendicular to the moving direction S of the slider 2 and receives a load receiving surface 15 that receives an input load from the locking projection 4 that is moving to the locking position P <b> 1. have. Further, guide grooves 16 (illustrated for the first guide member 1A in FIG. 1) for guiding the slider 2 are provided on the overlapping surface of the two guide members 1A and 1B, respectively. By superimposing 1A and 1B, a guide space 17 that accommodates the slider 2 and accurately guides it in the moving direction S is formed.

  The guide member 1 is provided with a guide 27 that restricts the displacement of the cam body 6 relative to the slider 2 in the same direction as the moving direction S of the slider 2. The guide 27 is a guide groove for sliding the cam body 6, for example. Since the guide 27 is provided in the range where the long hole 14 is provided, the cam body 6 can be moved from a position corresponding to one end of the long hole 14 to a position corresponding to the other end. The movement with respect to the member 1 is not hindered. The width dimension of the guide 27 corresponds to the width dimension of the cam body 6, and the cam body 6 can be guided straight without rattling or tilting the posture. In the present embodiment, the outer surface (the lower surface in FIG. 1) of the first guide member 1A and the outer surface (the upper surface in FIG. 1) of the second guide member 1B, which are the surfaces on which the cam body 6 overlaps. A guide 27 is provided.

  The slider 2 is a plate material, for example, and is provided with a long and narrow long hole 18 in a direction perpendicular to the moving direction S of the slider 2 and a long and thin long hole 19 in the moving direction S of the slider 2. The long holes 19 are provided on both sides of the long hole 18, respectively. An armrest 9 is fixed to the slider 2. In the present embodiment, the three elongated holes 18, 19, 19 are continuously formed in a cross shape in consideration of the ease of processing and the like, but these are formed independently without being continuous. May be. The slider 2 is formed with a large number of holes 20 for weight reduction, but the holes 20 may not be provided.

  The locking projection 4 is, for example, a cylindrical body that fits into the locking recess 3. The locking projection 4 is inserted into the long hole 18 of the slider 2. Further, the urging member 5 is accommodated in the long hole 18, and the urging member 5 presses the locking projection 4 toward one side in the long hole 18, that is, toward the locking position P1. Yes. The biasing member 5 is a coil spring, for example.

  The cam body 6 is a rectangular plate material provided with a cam hole 21, for example, and two cam bodies 6 are provided so as to sandwich the two guide members 1 </ b> A and 1 </ b> B that are overlapped. In this embodiment, the four corners of the cam body 6 are rounded, but it is not necessary to round the four corners of the cam body 6 when the cam body 6 can be smoothly displaced. The locking projection 4 passes through the cam holes 21 of the first and second cam bodies 6A and 6B. The cam hole 21 has, for example, a V shape having two inclined portions 21 a and 21 b that are inclined with respect to the moving direction S of the slider 2. Even if it is displaced, the locking projection 4 can be moved from the locking position P1 to the release position P2. The first cam body 6A is provided with two connecting pins 22 arranged side by side in the moving direction S of the slider 2, and two holes 23 are provided in the second cam body 6B so as to face each connecting pin 22. Is provided. The first cam body 6A is superposed on the outer surface of the first guide member 1A, and the two connecting pins 22 are connected to the long hole 14 of the first guide member 1A, the long hole 19 of the slider 2, and the second guide member. The two cam bodies 6 are connected and integrated by fitting into the hole 23 of the second cam body 6B that is passed through the long hole 14 of 1B and superimposed on the outer surface of the second guide member 1B. Can do. As shown in FIGS. 3B and 4A, the cam body 6 is displaced with respect to the slider 2 within a range in which the locking projection 4 in the long hole 18 can move relatively in the cam hole 21. Is possible. The width dimension of the long hole 19 corresponds to the diameter of the connecting pin 22, and the long hole 19 is formed along the moving direction S of the slider 2, so that the displacement of the cam body 6 is the moving direction S of the slider 2. It will be along. Further, a hole 24 for connecting the operation portion 7 is formed in the second cam body 6B.

  The operation unit 7 is a knob having a wide area in a direction orthogonal to the moving direction S of the slider 2, for example, and has a shape that can be easily operated in the moving direction S of the slider 2. A fitting projection 25 is provided on the bottom surface of the operation portion 7, and the fitting projection 25 is fitted into the hole 24 of the second cam body 6 </ b> B through the slit 13 of the cover 11 and the slit 12 of the armrest support 8. The operation unit 7 can be integrated with the cam body 6.

  In this embodiment, since the slide guide device 26 is used as, for example, a height adjusting device for the armrest 9 of the chair, the slide guide device 26 is used in a standing state. Accordingly, the moving direction S of the slider 2 is the vertical direction. Moreover, since the operation part 7 is attached to the outer side surface of the vertical part 8a of the armrest support body 8, it does not get in the way of the seated person and is not operated erroneously by hitting the body of the seated person. It is arranged.

  Next, attachment of the armrest 9 to the armrest support 8 will be described. First, the slide guide device 26 is assembled. For example, the first guide member 1 </ b> A and the slider 2 are overlapped on the first cam body 6 </ b> A, and the locking projection 4 and the biasing member 5 are inserted into the long hole 18 of the slider 2. Then, the second guide member 1B and the second cam body 6B are overlapped. At this time, the connecting pin 22 is fitted into the hole 23 of the second cam body 6B, so that the first cam body 6A, the first guide member 1A, the slider 2, the second guide member 1B, the second cam The body 6B can be temporarily fixed.

  After the slide guide device 26 is temporarily fixed in this manner, the slide guide device 26 is inserted into the space 10 in the armrest support 8 with the direction in which the slider 2 protrudes upward, and is fixed by, for example, a screw (not shown). Then, the armrest 9 is fitted and fixed to the upper end of the slider 2 while covering the cover 11 from above. In the state where the armrest 9 is fitted into the slider 2, the positions of the slit 13 of the cover 11, the slit 12 of the armrest support 8 and the hole 24 of the second cam body 6B coincide with each other. The protrusion 25 is fitted into the hole 24 through the slit 13 and the slit 12, and the operation portion 7 is attached to the second cam body 6B. Thereby, the armrest 9 is attached to the armrest support body 8 so that height adjustment is possible.

  In a state in which the operation portion 7 is not operated, the locking projection 4 is held at the locking position P1 by the urging force of the urging member 5, as shown in FIG. Is fitted into any one of the locking recesses 3. That is, in this state, the cam body 6 which is an unlocking means is located at the neutral position P3, and the operation portion 7 is in the neutral position in the middle of the displacement range and maintains the locked state of the slider 2 with respect to the guide member 1. I am letting. For this reason, the slider 2 is fixed to the guide member 1, and the armrest 9 cannot be raised or lowered. Further, even if the seated person places an elbow on the armrest 9, the armrest 9 does not descend. In this state, the cam body 6 is returned to the neutral position P3 by the latching protrusion 4 being held at the latching position P1 by the urging member 5.

  The locking recess 3 opens in a direction perpendicular to the moving direction S of the slider 2, and the locking projection 4 fits into the locking recess 3 from this direction. Therefore, in a state where the locking projection 4 is fitted in the locking recess 3, the locking projection 4 does not come off from the locking recess 3 even if a force in the moving direction S acts on the slider 2. Secure 2 securely.

  Moreover, since the load receiving surface 15 is provided in the locking recess 3, when a seated person puts his elbow on the armrest 9, the load is transmitted to the slider 2 → the locking protrusion 4 → the load receiving surface 15. Are supported by the guide member 1. If the load receiving surface 15 is inclined with respect to the moving direction S of the slider 2, a force that causes the locking projection 4 to slide along the load receiving surface 15 is generated by the load. The convex part 4 rattles, and the usability is deteriorated. In the slide guide device 26 of the present invention, the load receiving surface 15 that supports the locking projection 4 is orthogonal to the moving direction S of the slider 2, so that the load from the slider 2 can be received vertically. For this reason, the load which acts on the slider 2 firmly is received, and the force which rattles the latching convex part 4 does not generate | occur | produce, but the rigidity of the armrest 9 can be improved further and it can improve usability.

  In order to raise the armrest 9, the operation unit 7 may be lifted up. When the operating portion 7 is operated upward, the cam body 6 is displaced upward with respect to the slider 2 in the fixed state, so that the lower inclined portion 21a of the cam hole 21 is formed as shown in FIG. The latching protrusion 4 is moved from the latching position P1 to the release position P2 against the biasing force of the biasing member 5. That is, the cam body 6 which is a locking release means releases the locked state of the slider 2 when the operation portion 7 is displaced from its neutral position. For this reason, the locking projection 4 is disengaged from the locking recess 3 and the slider 2 becomes free with respect to the guide member 1. Since the operation unit 7 is operated upward, the operation force is transmitted from the operation unit 7 → cam body 6 → locking projection 4 → slider 2 as shown in FIG. The slider 2 thus moved moves upward as it is.

  When the operation of lifting the operating portion 7 is stopped, the force that the cam body 6 holds the locking projection 4 at the release position P2 disappears, so that the locking projection 4 is locked by the biasing force of the biasing member 5. The slider 2 is fixed to the guide member 1 by returning to the position P <b> 1 and fitting in another locking recess 3 at the movement destination. That is, the armrest 9 can be raised and fixed to an arbitrary height. Further, when the locking projection 4 is returned to the locking position P <b> 1, the cam body 6 is returned to the neutral position P <b> 3, and the operation unit 7 is returned to the original position with respect to the cover 11.

  When the armrest 9 is lowered, the operation unit 7 may be lowered. When the operating portion 7 is moved downward and lowered, the cam body 6 is displaced downward with respect to the slider 2 in the fixed state, so that the upper inclined portion 21b of the cam hole 21 is formed as shown in FIG. The latching protrusion 4 is moved from the latching position P1 to the release position P2 against the biasing force of the biasing member 5. For this reason, the locking projection 4 is disengaged from the locking recess 3 and the slider 2 becomes free with respect to the guide member 1. And since the operation part 7 is operated below, the operation force is transmitted to the operation part 7-> cam body 6-> latching convex part 4-> slider 2 and is free as shown in FIG. 4 (B). The slider 2 thus moved moves downward as it is.

  When the operation of lowering the operating portion 7 is stopped, the force that the cam body 6 holds the locking convex portion 4 at the release position P2 disappears, so that the locking convex portion 4 is locked by the biasing force of the biasing member 5. The slider 2 is fixed to the guide member 1 by returning to the position P <b> 1 and fitting in another locking recess 3 at the movement destination. That is, the armrest 9 can be fixed by being lowered to an arbitrary height. Further, when the locking projection 4 is returned to the locking position P <b> 1, the cam body 6 is returned to the neutral position P <b> 3, and the operation unit 7 is returned to the original position with respect to the cover 11.

  In the slide guide device 26 of the present invention, if the operating portion 7 is lifted, the slider 2 can be raised as it is to raise the armrest 9, and if the operating portion 7 is lowered, the slider 2 is lowered as it is to lower the armrest 9. be able to. That is, the operation direction of the operation unit 7 and the movement direction of the slider 2 can be matched. For this reason, it is easy to operate, and usability can be improved.

  In addition, since the slider 2 becomes free with respect to the guide member 1 by operating the operating portion 7 up or down to move the locking projection 4 to the release position P2, the operating direction of the operating portion 7 in this state It is also possible to move the slider 2 in the opposite direction. That is, it is possible to operate the operation unit 7 upward to lower the armrest 9 and conversely operate the operation unit 7 downward to raise the armrest 9. For example, the armrest 9 may be moved up and down several times in order to adjust the height of the armrest 9 to an appropriate height, but the slider 2 is moved in both the same direction and the opposite direction to the operation direction of the operation unit 7. Therefore, the height adjusting operation can be easily performed.

  Further, since the cam body 6 is guided and slid by the guide 27, the cam body 6 is always displaced straight with respect to the slider 2, and the posture thereof does not tilt or rattle. The four corners of the cam body 6 are rounded. For this reason, the displacement of the cam body 6 becomes reliable and smooth, and the lifting and lowering operation of the slide guide device 26 can be made reliable and smooth. In the present embodiment, the two connecting pins 22 are inserted into the two long holes 19, and the cam body 6 can be prevented from tilting and rattling from this structure as well. The displacement of the slide guide device 26 can be made even more reliable and smooth. The combined use of the guide 27, the connecting pin 22, and the long hole 19 can suppress adverse effects on operability due to factors such as variations in the dimensional accuracy of components, and can improve manufacturing reliability.

  In recent years, monitors such as desktop personal computers tend to be thinned. By using a thin monitor, the position of the monitor can be shifted to the back, and the desk can be used widely. However, the distance between the seated person and the monitor increases accordingly. For this reason, there is a chair in which the armrest 9 that interferes with the top plate of the desk is shifted rearward so that it can take a sitting posture as close to the desk as possible. In such a chair, the height of the armrest 9 cannot be adjusted unless the arm is rotated backward by the amount of the armrest 9 disposed rearward. In other words, since the arm is forcibly turned back, a height adjustment device or the like that lifts and lowers the armrest 104 while pushing the operation unit 107a shown in FIGS. It becomes difficult operation. That is, when operating the operation unit in a direction different from the moving direction of the armrest 9, it is difficult to lift and lower the armrest 9 with one hand. On the other hand, in the slide guide device 26, the operation direction of the operation unit 7 and the movement direction of the armrest 9 can be matched, so that the operation unit 7 is picked and operated, and the armrest 9 is moved up and down in the operation direction as it is. As a result, it is easy to move up and down the armrest 9 even if it is a chair with the armrest 9 arranged rearward, as well as a normal chair where the armrest 9 is not arranged rearward. ing.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention.

  For example, in the above description, the locking recess 3 is opened in a direction perpendicular to the moving direction S of the slider 2, but is not necessarily in a direction perpendicular to the moving direction S of the slider 2. Even when a load is applied, it is only necessary that the locking projection 4 opens in a direction in which the locking projection 4 does not slide off the locking recess 3. That is, when the direction in which the locking recess 3 is opened deviates from the direction perpendicular to the moving direction S of the slider 2 and approaches the moving direction S, the locking convex 4 is engaged by the load acting on the moving direction S of the slider 2. Although there is a possibility that it slides and disengages with respect to the locking recess 3, the locking projection 4 slides with respect to the locking recess 3 and disengages even when a load is applied in the moving direction S of the slider 2. It is only necessary that the locking recess 3 is open in the direction of the range where there is nothing. However, in actual product design, it is preferable to determine the opening direction with a sufficient margin against the disengagement of the locking projection 4, and it is preferable that the direction be orthogonal to the moving direction S as much as possible. That is, the direction in which the locking recess 3 opens is not a direction that is exactly perpendicular to the moving direction S, but may be a direction that causes no problem in practice.

  In the above description, the operation unit 7 is arranged on the outer surface of the armrest support 8. However, the arrangement of the operation unit 7 is not limited to the outer surface of the armrest support 8. The front side and the rear side of 8 may be used, and other places may be used.

  In the above description, the guide 27 is provided. However, the guide 27 may be omitted when the cam body 6 can be smoothly displaced without the guide 27.

  In the above description, the load receiving surface 15 orthogonal to the moving direction S of the slider 2 is provided in the locking recess 3, but the locking convex portion 4 against the load in the moving direction S of the slider 2. The load receiving surface 15 may be omitted when it can be firmly supported.

  For example, as shown in FIG. 9, recesses 21 c and 21 d may be provided at the end portions of the inclined portions 21 a and 21 b of the cam hole 21 provided in the cam body 6. In this case, when the operating portion 7 is operated to displace the cam body 6, the locking projection 4 is fitted into the recesses 21 c and 21 d, and the position of the cam body 6 is held against the biasing member 5. can do. For this reason, even if operation of the operation part 7 is stopped, the free state of the slider 2 with respect to the guide member 1 can be maintained, and the slider 2 (armrest 9) can be moved up and down as it is. And since the latching convex part 4 can be removed from the hollows 21c and 21d by applying a little force upward or downward to the operation part 7, the cam body 6 can be returned to the neutral position P3.

  In the present invention, the moving direction of the operation unit 7 and the cam body 6 and the moving direction of the slider 2 do not necessarily coincide with each other, and both may have a crossing directionality.

  In the above description, the slide guide device 26 is applied to the height adjusting device of the armrest 9 of the chair, but may be applied to devices and mechanisms other than the height adjusting device of the armrest 9 of the chair. In other words, any device or mechanism that moves and fixes the slider 2 relative to the guide member 1 can be applied. For example, a device for adjusting the position by moving the armrest 9 of the chair in the front-rear direction or the left-right direction with respect to the armrest support 8, and adjusting the position by moving the armrest support 8 in the front-rear direction or the left-right direction with respect to the seat. Device, device for adjusting the height by raising and lowering the armrest support 8 with respect to the seat, device for adjusting the position by moving the seat plate of the chair in the front-rear direction or the left-right direction, the chair backrest A device that adjusts the height by raising and lowering the back plate with respect to the back support rod, a device that adjusts the height by raising and lowering the back support rod with respect to the seat, and a longitudinal and lateral direction with respect to the seat To adjust the position by moving the chair, the device to adjust the height by raising and lowering the seat of the chair relative to the leg, and to adjust the position by moving the seat of the chair in the front-rear or left-right direction relative to the leg You may apply to an apparatus etc. Moreover, you may apply to things other than a chair. For example, the present invention may be applied to a slide guide that slides a top plate such as a desk, table, or table with respect to a frame, a support, or the like. In this case, for example, the top plate is divided into a plurality of pieces and arranged so as to be stacked one above the other. If you want to use the top plate widely, pull out the lower top plate from below the upper top plate. Can be used for desks, tables, tables, etc. Moreover, you may apply to the apparatus etc. which raise / lower a top plate and adjust height. Further, for example, the present invention may be applied to a device that adjusts the height by moving the shelf up and down with respect to the frame. Further, for example, the present invention may be applied to a slide guide that slides the floor of the bed with respect to the frame. Furthermore, for example, the present invention may be applied to a device that slides a slider on a guide member provided on an awning or the like. In addition, for example, a device for adjusting the mounting position of a shower head or the like on a wall or a pillar, etc., and a mounting support provided on the slider 2 by moving the slider 2 with respect to a guide member 1 fixed to the wall or the pillar. You may apply to the apparatus etc. which adjust the position of a part.

  In the above description, the slide guide device 26 is used in a standing state. However, the slide guide device 26 may be used in a horizontal state or in an oblique state.

  In the above description, the slide guide device 26 is applied to a device that adjusts the height and position of the member attached to the slider 2 by moving the slider 2 relative to the guide member 1. For example, the present invention may be applied to an expansion / contraction device / mechanism that expands / contracts the entire length by moving the slider 2 with respect to the guide member 1.

It is a disassembled perspective view which shows an example of embodiment of the slide guide apparatus of this invention. 1 shows a state in which the operation unit of the slide guide device of FIG. 1 is removed, (A) is a side view showing a state where the slider is lowered to the bottom, and (B) shows a state where the slider is raised to the top. FIG. FIG. 3A shows a state in which the locking projection is operated by the displacement of the cam body to raise the slide, FIG. 3A is a diagram showing the cam body in the neutral position, and FIG. 2B is a state in which the cam body is displaced upward. FIG. 4C is a diagram showing a state where the slider is raised. FIG. 5A shows a state in which the locking projection is operated by the displacement of the cam body and the slide is lowered, FIG. 5A is a view of the cam body being displaced downward, and FIG. 5B is a state of the slider being lowered. FIG. It is an enlarged view of a latching recessed part. It is a side view of an armrest incorporating a slide guide device as a height adjusting device. It is a front view of an armrest incorporating a slide guide device as a height adjusting device. It is a disassembled perspective view which shows a mode that a slide guide apparatus is integrated as an armrest height adjustment apparatus. It is a figure of the state which shows other embodiment of the cam hole provided in the cam body, and has a cam body in a neutral position. It is the side view which notched and showed the conventional armrest height adjustment apparatus of the chair. It is a center longitudinal cross-sectional view of the height adjustment apparatus of the armrest of the conventional chair.

Explanation of symbols

1 Guide member 2 Slider 3 Locking recess (Locking receiving part)
4 Locking convex part (Locking part)
5 urging member 6 cam body 7 operation section 8 chair armrest support 9 chair armrest 15 load receiving surface 26 slide guide device 27 guide P1 locking projection locking position P2 locking projection unlocking position P3 cam body Neutral position S Direction of slider movement

Claims (6)

Comprising a guide member, a slider which is reciprocally movably supported by the guide member, and a locking means for securing the slider relative to the guide member, the locking means, said a predetermined range on the slider An operating portion supported so as to be displaceable in the reciprocating direction of the slider, and when the operating portion is at a neutral position in the middle of the displacement range, the locking state of the slider with respect to the guide member is maintained, and the operating portion is also possess a locking releasing means for releasing the locking state when displaced in both directions either direction from the position, Rukoto the operating portion of the displacement and the locking state is released is transmitted to the slider A slide guide device characterized by the above.   The slide guide device according to claim 1, wherein a moving direction of the slider and a displacement direction of the operation unit are matched.   In the slide guide device for moving and fixing the slider with respect to the guide member, a plurality of locking receiving portions provided in the guide member and arranged in the moving direction of the slider, and provided in the slider, the locking receiving portion A locking portion that is reciprocally movable between a locking position that fits into the locking position and a release position that is disengaged from the locking receiving portion, and between the slider and the locking portion. A biasing member that biases toward the stop position, and a cam that is attached to the slider so as to be displaceable in the same direction as the movement direction, and that moves the locking portion to the release position when displaced from the neutral position And an operation portion provided on the cam body. When the operation portion is moved and the cam body is displaced with respect to the slider, the locking portion resists the urging force of the urging member. Move to the release position, Slide guide apparatus in which the slider in the same direction as the moving direction of the operation portion remains is characterized in that it is moved.   The slide guide device according to claim 3, further comprising a guide that is provided on the guide member and regulates displacement of the cam body with respect to the slider in the same direction as the moving direction of the slider.   The locking receiving portion is a locking recess, the locking portion is a locking projection, and the locking recess is orthogonal to the moving direction of the slider and moves to the locking position. 5. The slide guide device according to claim 3, further comprising a load receiving surface for receiving an input load from the locking convex portion.   The slide according to any one of claims 1 to 5, wherein the guide member is provided on an armrest column of a chair, and the slider is provided on an armrest of the chair, and the height of the armrest is adjusted. Guide device.

Images